TRAVELERS COMPANIES, INC., 10-K filed on 2/12/2026
Annual Report
v3.25.4
Cover Page - USD ($)
12 Months Ended
Dec. 31, 2025
Feb. 05, 2026
Jun. 30, 2025
Cover [Abstract]      
Document type 10-K    
Document annual report true    
Document period end date Dec. 31, 2025    
Document transition report false    
Entity file number 001-10898    
Registrant name Travelers Companies, Inc.    
Entity incorporation, state MN    
Entity tax identification number 41-0518860    
Entity address, address line one 485 Lexington Avenue    
Entity address, city New York    
Entity address, state NY    
Entity address, postal zip code 10017    
City area code 917    
Local phone number 778-6000    
Title of 12(b) security Common stock, without par value    
Trading symbol TRV    
Security exchange name NYSE    
Well-known seasoned issuer Yes    
Voluntary filers No    
Entity current reporting status Yes    
Entity interactive data current Yes    
Filer category Large Accelerated Filer    
Entity small business false    
Entity emerging growth company false    
ICFR auditor attestation flag true    
Section 12(b) correction of an error false    
Entity shell company false    
Entity public float     $ 59,986,121,526
Common stock shares outstanding   216,237,902  
Documents incorporated by reference
Portions of the Registrant’s Proxy Statement relating to the 2026 Annual Meeting of Shareholders are incorporated by reference into Part III of this report.
   
Central index key 0000086312    
Current fiscal year end date --12-31    
Amendment flag false    
Document fiscal year focus 2025    
Document fiscal period focus FY    
v3.25.4
Audit Information
12 Months Ended
Dec. 31, 2025
Audit Information [Abstract]  
Auditor Name KPMG LLP
Auditor Location New York, NY
Auditor Firm ID 185
v3.25.4
Consolidated Statement of Income - USD ($)
shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Revenues      
Premiums $ 43,914 $ 41,941 $ 37,761
Net investment income 3,959 3,590 2,922
Fee income 495 473 433
Net realized investment losses (48) (30) (105)
Other revenues 508 449 353
Total revenues 48,828 46,423 41,364
Claims and expenses      
Claims and claim adjustment expenses 27,221 27,059 26,215
Amortization of deferred acquisition costs 7,266 6,973 6,226
General and administrative expenses 6,120 5,819 5,176
Interest expense 425 392 376
Total claims and expenses 41,032 40,243 37,993
Income before income taxes 7,796 6,180 3,371
Income tax expense 1,508 1,181 380
Net income $ 6,288 $ 4,999 $ 2,991
Net income per share      
Basic (in dollars per share) $ 27.83 $ 21.76 $ 12.93
Diluted (in dollars per share) $ 27.43 $ 21.47 $ 12.79
Weighted average number of common shares outstanding      
Basic (in shares) 224.2 228.0 229.7
Diluted (in shares) 227.6 231.1 232.2
v3.25.4
Consolidated Statement of Comprehensive Income - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Statement of Comprehensive Income [Abstract]      
Net income $ 6,288 $ 4,999 $ 2,991
Other comprehensive income (loss):      
Changes in net unrealized gains (losses) on investment securities having no credit losses recognized in the consolidated statement of income 2,744 (644) 2,249
Changes in net unrealized gains (losses) on investment securities having credit losses recognized in the consolidated statement of income 3 5 1
Net changes in benefit plan assets and obligations 94 296 106
Net changes in unrealized foreign currency translation 246 (232) 138
Other comprehensive income (loss) before income taxes 3,087 (575) 2,494
Income tax expense (benefit) 620 (79) 520
Other comprehensive income (loss), net of taxes 2,467 (496) 1,974
Comprehensive income $ 8,755 $ 4,503 $ 4,965
v3.25.4
Consolidated Balance Sheet - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Assets    
Fixed maturities, available for sale, at fair value (amortized cost $91,717 and $88,277; allowance for expected credit losses of $3 and $2) $ 89,833 $ 83,666
Equity securities, at fair value (cost $457 and $544) 618 687
Real estate investments 900 902
Short-term securities 5,716 4,766
Other investments 4,115 4,202
Total investments 101,182 94,223
Cash (including restricted cash of $132 and $131) 842 699
Investment income accrued 877 752
Premiums receivable (net of allowance for expected credit losses of $58 and $58) 10,992 11,110
Reinsurance recoverables (net of allowance for estimated uncollectible reinsurance of $129 and $119) 7,886 8,000
Ceded unearned premiums 1,283 1,202
Deferred acquisition costs 3,518 3,494
Deferred taxes 887 1,762
Contractholder receivables (net of allowance for expected credit losses of $16 and $18) 3,010 3,171
Goodwill 4,066 4,233
Other intangible assets 336 360
Other assets 4,279 4,183
Assets held for sale 4,550  
Total assets 143,708 133,189
Liabilities    
Claims and claim adjustment expense reserves 65,737 64,093
Unearned premium reserves 22,431 22,289
Contractholder payables 3,026 3,189
Payables for reinsurance premiums 529 550
Debt 9,267 8,033
Other liabilities 7,282 7,171
Liabilities held for sale 2,542  
Total liabilities 110,814 105,325
Shareholders’ equity    
Common stock (1,750.0 shares authorized; 217.5 and 226.6 shares issued and outstanding) 25,910 25,452
Retained earnings 54,931 49,630
Accumulated other comprehensive loss (2,500) (4,967)
Treasury stock, at cost (575.9 and 564.3 shares) (45,447) (42,251)
Total shareholders’ equity 32,894 27,864
Total liabilities and shareholders’ equity $ 143,708 $ 133,189
v3.25.4
Consolidated Balance Sheet Parentheticals - USD ($)
shares in Millions, $ in Millions
Dec. 31, 2025
Dec. 31, 2024
Statement of Financial Position [Abstract]    
Fixed maturities, available for sale, amortized cost $ 91,717 $ 88,277
Fixed maturities, available for sale, allowance for expected credit losses 3 2
Equity securities, cost 457 544
Restricted cash 132 131
Premiums receivable, allowance for expected credit losses 58 58
Reinsurance recoverables, allowance for estimated uncollectible reinsurance 129 119
Contractholder receivables, allowance for expected credit losses $ 16 $ 18
Common stock, shares authorized (in shares) 1,750.0 1,750.0
Common stock, shares issued (in shares) 217.5 226.6
Common stock, shares outstanding (in shares) 217.5 226.6
Treasury stock, at cost (in shares) 575.9 564.3
v3.25.4
Consolidated Statement of Changes in Shareholders' Equity - USD ($)
shares in Millions, $ in Millions
Total
Common stock [Member]
Retained earnings [Member]
Accumulated other comprehensive loss, net of tax [Member]
Treasury stock, at cost [Member]
Common shares outstanding [Member]
Balance, beginning of year at Dec. 31, 2022   $ 24,565 $ 43,516 $ (6,445) $ (40,076)  
Shareholders' Equity [Roll Forward]            
Employee share-based compensation   125        
Compensation amortization under share-based plans and other changes   216        
Net income $ 2,991   2,991      
Dividends     (915)      
Other     (1)      
Other comprehensive income (loss) 1,974     1,974    
Treasury stock acquired — share repurchase authorizations         (965)  
Net shares acquired related to employee share-based compensation plans         (64)  
Balance, end of year at Dec. 31, 2023 24,921 24,906 45,591 (4,471) (41,105)  
Balance, beginning of year (in shares) at Dec. 31, 2022           232.1
Common shares outstanding            
Treasury stock acquired — share repurchase authorizations (in shares)           (5.4)
Net shares issued under employee share-based compensation plans (in shares)           1.5
Balance, end of year (in shares) at Dec. 31, 2023           228.2
Shareholders' Equity [Roll Forward]            
Employee share-based compensation   286        
Compensation amortization under share-based plans and other changes   260        
Net income 4,999   4,999      
Dividends     (962)      
Other     2      
Other comprehensive income (loss) (496)     (496)    
Treasury stock acquired — share repurchase authorizations         (1,000)  
Net shares acquired related to employee share-based compensation plans (146)       (146)  
Balance, end of year at Dec. 31, 2024 $ 27,864 25,452 49,630 (4,967) (42,251)  
Common shares outstanding            
Treasury stock acquired — share repurchase authorizations (in shares)           (4.4)
Net shares issued under employee share-based compensation plans (in shares)           2.8
Balance, end of year (in shares) at Dec. 31, 2024 226.6         226.6
Shareholders' Equity [Roll Forward]            
Employee share-based compensation   202        
Compensation amortization under share-based plans and other changes   256        
Net income $ 6,288   6,288      
Dividends     (987)      
Other     0      
Other comprehensive income (loss) 2,467     2,467    
Treasury stock acquired — share repurchase authorizations (3,000)       (3,025)  
Net shares acquired related to employee share-based compensation plans (171)       (171)  
Balance, end of year at Dec. 31, 2025 $ 32,894 $ 25,910 $ 54,931 $ (2,500) $ (45,447)  
Common shares outstanding            
Treasury stock acquired — share repurchase authorizations (in shares) (10.9)         (10.9)
Net shares issued under employee share-based compensation plans (in shares)           1.8
Balance, end of year (in shares) at Dec. 31, 2025 217.5         217.5
v3.25.4
Consolidated Statement of Cash Flows - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Cash flows from operating activities      
Net income $ 6,288 $ 4,999 $ 2,991
Adjustments to reconcile net income to net cash provided by operating activities:      
Net realized investment losses 48 30 105
Depreciation and amortization 680 715 722
Deferred federal income tax expense (benefit) 210 (152) (163)
Amortization of deferred acquisition costs 7,266 6,973 6,226
Equity in income from other investments (226) (294) (157)
Premiums receivable (115) (859) (1,341)
Reinsurance recoverables (137) 111 (63)
Deferred acquisition costs (7,373) (7,173) (6,689)
Claims and claim adjustment expense reserves 3,300 2,680 2,843
Unearned premium reserves 584 1,488 2,590
Other operating activities 81 556 647
Net cash provided by operating activities 10,606 9,074 7,711
Cash flows from investing activities      
Proceeds from maturities of fixed maturities 11,660 8,537 6,371
Proceeds from sales of investments:      
Fixed maturities 832 1,634 4,981
Equity securities 160 143 138
Real estate investments 0 64 0
Other investments 321 422 255
Purchases of investments:      
Fixed maturities (18,771) (17,132) (15,690)
Equity securities (126) (124) (105)
Real estate investments (48) (48) (67)
Other investments (346) (396) (495)
Net sales (purchases) of short-term securities (945) 370 (1,664)
Securities transactions in the course of settlement 144 56 (83)
Acquisition, net of cash acquired 0 (382) 0
Other investing activities (533) (408) (462)
Net cash used in investing activities (7,652) (7,264) (6,821)
Cash flows from financing activities      
Treasury stock acquired — share repurchase authorizations (3,004) (1,003) (958)
Treasury stock acquired — net employee share-based compensation (127) (114) (64)
Dividends paid to shareholders (979) (951) (908)
Issuance of debt 1,233 0 738
Issuance of common stock — employee share options 214 321 141
Net cash used in financing activities (2,663) (1,747) (1,051)
Effect of exchange rate changes on cash and restricted cash 23 (14) 12
Net increase (decrease) in cash and restricted cash 314 49 (149)
Cash and restricted cash at beginning of year 699 650 799
Less amounts classified as held for sale at end of period 171    
Cash and restricted cash at end of year 842 699 650
Supplemental disclosure of cash flow information      
Income taxes paid 1,274 1,310 201
Interest paid $ 393 $ 390 $ 370
v3.25.4
Summary of Significant Accounting Policies
12 Months Ended
Dec. 31, 2025
Accounting Policies [Abstract]  
Summary of Significant Accounting Policies SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Basis of Presentation
The consolidated financial statements include the accounts of The Travelers Companies, Inc. (together with its subsidiaries, the Company). The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and claims and expenses during the reporting period. Actual results could differ from those estimates. All material intercompany transactions and balances have been eliminated. To the extent that the Company changes its accounting for or presentation of items in the financial statements, the presentation of such amounts in prior periods is changed to conform to the current period presentation, if appropriate, and a disclosure is provided, if material.
On January 2, 2024, the Company completed its previously announced acquisition of all issued and outstanding shares of Corvus Insurance Holdings, Inc. and its subsidiaries (Corvus), a cyber insurance managing general underwriter, for consideration transferred of approximately $427 million. The acquisition provided the Company the opportunity to renew Corvus’s book of business and to leverage Corvus’s capabilities to enhance the return profile of Travelers’ existing cyber portfolio. At the acquisition date, the Company recorded at fair value $478 million of assets acquired and $51 million of liabilities assumed as part of purchase accounting, including $390 million of identifiable intangible assets and goodwill. The assets acquired from Corvus were included in the Company’s Bond & Specialty Insurance segment, effective at the acquisition date. The Company funded this transaction from internal resources. A provisional amount of $19 million was recorded as a deferred tax asset and included on the consolidated balance sheet on January 2, 2024, and was later increased by an insignificant amount when the 2023 tax return for Corvus was finalized.
On May 27, 2025, the Company entered into an agreement to sell its Canadian personal insurance business and the majority of its Canadian commercial insurance business to Definity Financial Corporation for approximately US$2.4 billion. The assets and liabilities of the Canadian personal insurance business and the majority of its Canadian commercial insurance business have been classified as held for sale in the consolidated balance sheet as of December 31, 2025. The Company retained its surety business in Canada. The sale closed on January 2, 2026.
The major classes of assets and liabilities classified as held for sale were as follows:
December 31,
2025
Assets
Fixed maturities, available for sale, at fair value$3,243 
Premiums receivable263 
Reinsurance recoverables285 
Goodwill208 
Remaining assets held for sale551 
Total assets held for sale$4,550 
Liabilities 
Claims and claim adjustment expense reserves$1,909 
Unearned premium reserves514 
Remaining liabilities held for sale119 
Total liabilities held for sale$2,542 
Accounting Standards Not Yet Adopted
In September 2025, the Financial Accounting Standards Board (FASB) issued updated guidance on the accounting for internal use software costs. The updated guidance removes all references to software development project stages so that the guidance is neutral to different software development methods and allows for the application of iterative software development methods such as agile. The updated guidance requires that an entity capitalize software costs when both: 1) management has authorized and committed to the funding of the software project, and 2) it is probable that the project will be completed, and the software will be used to perform its intended function. Additionally, the updated guidance clarifies that internal and external training costs and maintenance costs must be expensed as incurred.
The updated guidance is effective for the quarter ended March 31, 2028, and can be applied on a prospective, modified, or retrospective transition approach. Early adoption is permitted. The adoption of this guidance is not expected to have a material effect on the Company’s results of operations, financial position, or liquidity.
Accounting Policies
Investments
Fixed Maturities
Fixed maturities include bonds, notes and redeemable preferred stocks. Fixed maturities, including instruments subject to securities lending agreements, are classified as available for sale and reported at fair value, with unrealized investment gains and losses, net of income taxes, charged or credited directly to other comprehensive income.
Equity Securities
Equity securities, which include public and non-public common and non-redeemable preferred stocks, are reported at fair value with changes in fair value recognized in net realized investment gains (losses).
Real Estate Investments
The Company’s real estate investments include warehouses, office buildings and other commercial land and properties that are directly owned. Real estate is recorded on the purchase date at the purchase price, which generally represents fair value, and is supported by internal analysis or external appraisals that use discounted cash flow analyses and other acceptable valuation techniques. Real estate held for investment purposes is subsequently carried at cost less accumulated depreciation.
Buildings are depreciated on a straight-line basis over the shorter of the expected useful life of the building or 39 years. Real estate held for sale is carried at lower of cost or fair value, less estimated costs to sell.
Short-term Securities
Short-term securities have an original maturity of less than one year and are carried at amortized cost, which approximates fair value.
Other Investments
Investments in Private Equity Limited Partnerships, Hedge Funds and Real Estate Partnerships
The Company uses the equity method of accounting for investments in private equity limited partnerships, hedge funds and real estate partnerships. The partnerships and the hedge funds generally report investments on their balance sheet at fair value. The financial statements prepared by the investee are received by the Company on a lag basis, with the lag period generally dependent upon the type of underlying investments. The private equity and real estate partnerships provide financial information quarterly which is generally available to investors, including the Company, within three months following the date of the reporting period. The hedge funds provide financial information monthly, which is generally available to investors within one month following the date of the reporting period. The Company regularly requests financial information from the partnerships prior to the receipt of the partnerships’ financial statements and records any material information obtained from these requests in its consolidated financial statements.
Other
Derivatives are also included in other investments. The Company’s derivative financial instruments are carried at fair value, with the changes in fair value reflected in the consolidated statement of income in net realized investment gains (losses). For a further discussion of the derivatives used by the Company, see note 3.
Net Investment Income
Investment income from fixed maturities is recognized based on the constant effective yield method which includes an adjustment for estimated principal pre-payments, if any. The effective yield used to determine amortization for fixed maturities subject to prepayment risk (e.g., asset-backed, loan-backed and structured securities) is recalculated and adjusted periodically based upon actual historical and/or projected future cash flows, which are obtained from a widely-accepted securities data provider. The adjustments to the yield for highly rated prepayable fixed maturities are accounted for using the retrospective method. The adjustments to the yield for non-highly rated prepayable fixed maturities are accounted for using the prospective method. Dividends on equity securities (including those with transfer restrictions) are recognized in income when declared.  Rental income on real estate is recognized on a straight-line basis over the lease term. See the section titled: Real Estate in note 3 for further discussion. Investments in private equity limited partnerships, hedge funds, real estate partnerships and joint ventures are accounted for using the equity method of accounting, whereby the Company’s share of the investee’s earnings or losses in the fund is reported in net investment income.
Accrual of income is suspended on non-securitized fixed maturities that are in default, or on which it is likely that future payments will not be made as scheduled. Interest income on investments in default is recognized only when payments are received. Investments included in the consolidated balance sheet that were not income-producing for the preceding 12 months were not material.
Net Realized Investment Gains and Losses
Net realized investment gains and losses include net realized gains (losses) from the sale of investments, credit impairment losses on investment assets, impairments of real estate investments, changes in the fair value of equity securities, foreign currency transaction gains and losses and changes in the fair value of derivative financial instruments. Net realized investment gains (losses) on the sale of investments are included as a component of pre-tax revenues based upon specific identification of the investments sold on the trade date.
Investment Impairments
The Company conducts a periodic review to identify and evaluate invested assets that may have credit impairments.
Credit Impairments Related to Fixed Maturity Investments
Some of the factors considered in assessing impairment of fixed maturity investments due to credit-related factors include: (1) the extent to which the fair value has been less than amortized cost; (2) the financial condition, near-term and long-term prospects for the issuer, including the relevant industry conditions and trends, and implications of rating agency actions and offering prices; (3) the likelihood of the recoverability of principal and interest; and (4) whether it is more likely than not that the Company will be required to sell the investment prior to an anticipated recovery in value.
For fixed maturity investments that the Company does not intend to sell or for which it is more likely than not that the Company would not be required to sell before an anticipated recovery in value, the Company separates the credit loss component of the impairment from the amount related to all other factors and reports the credit loss component in net realized investment gains (losses). The impairment related to all other factors (non-credit factors) is reported in other comprehensive income. The allowance is adjusted for any additional credit losses and subsequent recoveries. Upon recognizing a credit loss, the cost basis is not adjusted.
For fixed maturity investments where the Company records a credit loss, a determination is made as to the cause of the impairment and whether the Company expects a recovery in the value. For fixed maturity investments where the Company expects a recovery in value, the constant effective yield method is utilized, and the investment is amortized to par.
For fixed maturity investments the Company intends to sell or for which it is more likely than not that the Company will be required to sell before an anticipated recovery in value, the full amount of the impairment is included in net realized investment gains (losses). The new cost basis of the investment is the previous amortized cost basis less the impairment recognized in net realized investment gains (losses). The new cost basis is not adjusted for any subsequent recoveries in fair value.
The Company reports investment income accrued separately from fixed maturity investments, available for sale, and has elected not to measure an allowance for credit losses for investment income accrued. Investment income accrued is written off through net realized investment gains (losses) at the time the issuer of the bond defaults or is expected to default on payments.
Uncollectible available-for-sale debt securities are written-off when the Company determines that no additional payments of principal or interest will be received.
Determination of Credit Loss — Fixed Maturities
The Company determines the credit loss component of fixed maturity investments by utilizing discounted cash flow modeling to determine the present value of the security and comparing the present value with the amortized cost of the security. If the amortized cost is greater than the present value of the expected cash flows, the difference is considered a credit loss and recognized as an impairment loss in net realized investment gains (losses).
For non-structured fixed maturities (U.S. Treasury securities, obligations of U.S. government and government agencies and authorities, obligations of states, municipalities and political subdivisions, debt securities issued by foreign governments and certain corporate debt), the estimate of expected cash flows is determined by projecting a recovery value and a recovery time frame and assessing whether further principal and interest will be received. The determination of recovery value incorporates an issuer valuation assumption utilizing one or a combination of valuation methods as deemed appropriate by the Company. The Company determines the undiscounted recovery value by allocating the estimated value of the issuer to the Company’s assessment of the priority of claims. The present value of the cash flows is determined by applying the effective yield of the security at the date of acquisition (or the most recent implied rate used to accrete the security if the implied rate has changed as a result of a previous impairment) and an estimated recovery time frame. Generally, that time frame for securities for which the issuer is in bankruptcy is 12 months. For securities for which the issuer is financially troubled but not in bankruptcy, that time frame is generally 24 months. Included in the present value calculation are expected principal and interest payments; however, for securities for which the issuer is classified as bankrupt or in default, the present value calculation assumes no interest payments and a single recovery amount.
In estimating the recovery value, significant judgment is involved in the development of assumptions relating to a myriad of factors related to the issuer including, but not limited to, revenue, margin and earnings projections, the likely market or liquidation values of assets, potential additional debt to be incurred pre- or post-bankruptcy/restructuring, the ability to shift existing or new debt to different priority layers, the amount of restructuring/bankruptcy expenses, the size and priority of unfunded pension obligations, litigation or other contingent claims, the treatment of intercompany claims and the likely outcome with respect to inter-creditor conflicts.
For structured fixed maturity securities (primarily residential and commercial mortgage-backed securities and asset-backed securities), the Company estimates the present value of the security by projecting future cash flows of the assets underlying the securitization, allocating the flows to the various tranches based on the structure of the securitization and determining the present value of the cash flows using the effective yield of the security at the date of acquisition (or the most recent implied rate used to accrete the security if the implied rate has changed as a result of a previous impairment or changes in expected cash flows). The Company incorporates levels of delinquencies, defaults and severities as well as credit attributes of the remaining assets in the securitization, along with other economic data, to arrive at its estimate of the parameters applied to the assets underlying the securitization. 
Real Estate Investments
On at least an annual basis, the Company obtains independent appraisals for substantially all of its real estate investments. In addition, the carrying value of all real estate investments is reviewed for impairment on a quarterly basis or when events or changes in circumstances indicate that the carrying amount may not be recoverable. The review for impairment considers the valuation from the independent appraisal, when applicable, and incorporates an estimate of the undiscounted cash flows expected to result from the use and eventual disposition of the real estate property. An impairment loss is recognized if the expected future undiscounted cash flows are less than the carrying value of the real estate property. The impairment loss is the amount by which the carrying amount exceeds fair value.
Other Investments
The Company reviews its investments in private equity limited partnerships, hedge funds and real estate partnerships for impairment no less frequently than quarterly and monitors the performance throughout the year through discussions with the managers/general partners. If the Company becomes aware of an impairment of a partnership’s investments at the balance sheet date prior to receiving the partnership’s financial statements, it will recognize an impairment by recording a reduction in the carrying value of the partnership with a corresponding charge to net investment income.
Changes in Intent to Sell Temporarily Impaired Assets
The Company may, from time to time, sell invested assets subsequent to the balance sheet date that it did not intend to sell at the balance sheet date. Conversely, the Company may not sell invested assets that it asserted that it intended to sell at the balance sheet date. Such changes in intent are due to events occurring subsequent to the balance sheet date. The types of events that may result in a change in intent include, but are not limited to, significant changes in the economic facts and circumstances related to the invested asset (e.g., a downgrade or upgrade from a rating agency), significant unforeseen changes in liquidity needs, or changes in tax laws or the regulatory environment.
Securities Lending
The Company has, from time to time, engaged in securities lending activities from which it generates net investment income by lending certain of its investments to other institutions for short periods of time. Borrowers of these securities provide collateral equal to at least 102% of the market value of the loaned securities plus accrued interest. This collateral is held by a third-party custodian, and the Company has the right to access the collateral only in the event that the institution borrowing the Company’s securities is in default under the lending agreement (i.e., the Company is not permitted to re-pledge or sell any such collateral). Therefore, the Company does not recognize the receipt of the collateral held by the third-party custodian or the obligation to return the collateral. The loaned securities remain a recorded asset of the Company. The Company accepts only cash as collateral for securities on loan and restricts the manner in which that cash is invested.
Restricted Cash
Restricted cash represents funds that are legally or contractually restricted as to withdrawal or usage. These restrictions primarily relate to certain wholly-owned subsidiaries of the Company providing brokerage and other insurance-related services.
Reinsurance Recoverables
Amounts recoverable from reinsurers are estimated in a manner consistent with the associated claim liability. Included in reinsurance recoverables are amounts related to certain structured settlements. The Company reports its reinsurance recoverables net of an allowance for amounts that are estimated to be uncollectible. The allowance is based upon the Company’s ongoing review of amounts outstanding, length of collection periods, changes in reinsurer credit standing, disputes, applicable coverage defenses and other relevant factors. For structured settlements, the allowance is also based upon the Company’s ongoing review of life insurers’ creditworthiness and estimated amounts of coverage that would be available from state guaranty funds if a life insurer defaults. A probability-of-default methodology which reflects current and forecasted economic conditions is used to estimate the amount of uncollectible reinsurance due to credit-related factors and the estimate is reported in an allowance for estimated uncollectible reinsurance. The allowance also includes estimated uncollectible amounts related to dispute risk with reinsurers. Amounts deemed to be uncollectible, including amounts due from known insolvent reinsurers, are written off against the allowance. Changes in the allowance, as well as any subsequent collections of amounts previously written off, are reported as part of claims and claim adjustment expenses. The Company evaluates and monitors the financial condition of its reinsurers under voluntary reinsurance arrangements to minimize its exposure to significant losses from reinsurer insolvencies.
Deferred Acquisition Costs
Incremental direct costs of acquired, new and renewal insurance contracts, consisting of commissions (other than contingent commissions) and premium-related taxes, are capitalized and charged to expense pro rata over the contract periods in which the related premiums are earned. Deferred acquisition costs are reviewed to determine if they are recoverable from future income and, if not, are charged to expense. Future investment income attributable to related premiums is taken into account in measuring the recoverability of the carrying value of this asset. All other acquisition expenses are charged to operations as incurred.
Contractholder Receivables and Payables
Under certain workers’ compensation insurance contracts with deductible features, the Company is obligated to pay the claimant for the full amount of the claim. The Company is subsequently reimbursed by the policyholder for the deductible amount. These amounts are included on a gross basis in the consolidated balance sheet in both contractholder payables and contractholder receivables. Contractholder receivables are reported net of an allowance for expected credit losses. The allowance is based upon the Company’s ongoing review of amounts outstanding, changes in policyholder credit standing, and other relevant factors. A probability-of-default methodology, which reflects current and forecasted economic conditions, is used to estimate the allowance for expected credit losses.
Goodwill and Other Intangible Assets
The Company performs a review, on at least an annual basis, of goodwill held by the reporting units which are the Company’s three operating and reportable segments: Business Insurance; Bond & Specialty Insurance; and Personal Insurance. The Company estimates the fair value of its reporting units and compares it to their carrying value, including goodwill. If the carrying values of the reporting units were to exceed their fair value, the amount of the impairment would be calculated and goodwill adjusted accordingly.
The Company uses a discounted cash flow model to estimate the fair value of its reporting units. The discounted cash flow model is an income approach to valuation that is based on a detailed cash flow analysis for deriving a current fair value of reporting units and is representative of the Company’s reporting units’ current and expected future financial performance. The discount rate assumptions reflect the Company’s assessment of the risks inherent in the projected future cash flows and the Company’s weighted-average cost of capital, and are compared against available market data for reasonableness.
Other indefinite-lived intangible assets held by the Company are also reviewed for impairment on at least an annual basis. The classification of the asset as indefinite-lived is reassessed and an impairment is recognized if the carrying amount of the asset exceeds its fair value.
Intangible assets that are deemed to have a finite useful life are amortized over their useful lives. The carrying amount of intangible assets with a finite useful life is regularly reviewed for indicators of impairment in value. Impairment is recognized
only if the carrying amount of the intangible asset is not recoverable from its undiscounted cash flows and is measured as the difference between the carrying amount and the fair value of the asset.
As a result of the reviews performed for the years ended December 31, 2025, 2024 and 2023, the Company determined that the estimated fair value substantially exceeded the respective carrying value of its reporting units for those years and that goodwill was not impaired. The Company also determined during its reviews for each year that its other indefinite-lived intangible assets and finite-lived intangible assets were not impaired.
Internal-Use Software
In the ordinary course of business, the Company develops and purchases software as well as enters into arrangements to utilize software as a service under cloud computing arrangements. These software costs and any costs related to the implementation and set-up of the cloud computing arrangements are capitalized and reported within other assets in the consolidated balance sheet.
Claims and Claim Adjustment Expense Reserves
Claims and claim adjustment expense reserves represent management’s estimate of the ultimate liability for unpaid losses and loss adjustment expenses for claims that have been reported and claims that have been incurred but not yet reported (IBNR) as of the balance sheet date. The reserves are adjusted regularly based upon experience. Included in the claims and claim adjustment expense reserves in the consolidated balance sheet are reserves for long-term disability and annuity claim payments, primarily arising from workers’ compensation insurance and workers’ compensation excess insurance policies, that are discounted to the present value of estimated future payments.
The Company performs a continuing review of its claims and claim adjustment expense reserves, including its reserving techniques and the impact of reinsurance. The reserves are also reviewed regularly by qualified actuaries employed by the Company. Since the reserves are based on estimates, the ultimate liability may be more or less than such reserves. The effects of changes in such estimated reserves are included in the results of operations in the period in which the estimates are changed. Such changes in estimates could occur in a future period and may be material to the Company’s results of operations and financial position in such period.
Other Liabilities
Included in other liabilities in the consolidated balance sheet is the Company’s estimate of its liability for guaranty fund and other insurance-related assessments. The liability for expected state guaranty fund and other premium-based assessments is recognized as the Company writes or becomes obligated to write or renew the premiums on which the assessments are expected to be based. The liability for loss-based assessments is recognized as the related losses are incurred. As of December 31, 2025 and 2024, the Company had a liability of $188 million and $182 million, respectively, for guaranty fund and other insurance-related assessments and related recoverables of $30 million and $29 million, respectively. The liability for such assessments and the related recoverables are not discounted for the time value of money. The loss-based assessments are expected to be paid over a period ranging from one year to the life expectancy of certain workers’ compensation claimants and the recoveries are expected to occur over the same period of time.
Also included in other liabilities is an accrual for policyholder dividends. Certain insurance contracts, primarily workers’ compensation, are participating whereby dividends are paid to policyholders in accordance with contract provisions. Net written premiums for participating dividend policies were approximately 1% of total net written premiums for each of the years ended December 31, 2025, 2024 and 2023. Policyholder dividends are accrued against earnings using best available estimates of amounts to be paid. The liability accrued for policyholder dividends totaled $80 million and $81 million as of December 31, 2025 and 2024, respectively.
Treasury Stock
The cost of common stock repurchased by the Company is reported as treasury stock and represents authorized and unissued shares of the Company under the Minnesota Business Corporation Act.
Statutory Accounting Practices
The Company’s U.S. insurance subsidiaries, domiciled principally in the State of Connecticut, are required to prepare statutory financial statements in accordance with the accounting practices prescribed or permitted by the insurance departments of the states of domicile. Prescribed statutory accounting practices are those practices that are incorporated directly or by reference in state laws, regulations, and general administrative rules applicable to all insurance enterprises domiciled in a particular state. The State of Connecticut requires insurers domiciled in Connecticut to prepare their statutory financial statements in accordance with National Association of Insurance Commissioners’ (NAIC) statutory accounting practices.
Permitted statutory accounting practices are those practices that differ either from state-prescribed statutory accounting practices or NAIC statutory accounting practices.
The Company does not apply any statutory accounting practices that would be considered a prescribed or permitted statutory accounting practice that differs from NAIC statutory accounting practices.
The Company’s non-U.S. insurance subsidiaries file financial statements prepared in accordance with the regulatory reporting requirements of their respective local jurisdiction.
Premiums and Unearned Premium Reserves
Premiums are recognized as revenues over the period of the contract in proportion to the amount of insurance protection provided, which is generally pro rata over the policy period. Unearned premium reserves represent the unexpired portion of policy premiums. Accrued retrospective premiums are included in premium balances receivable. Premium balances receivable are reported net of an allowance for expected credit losses. The allowance is based upon the Company’s ongoing review of amounts outstanding, historical loss data, including delinquencies and write-offs, current and forecasted economic conditions and other relevant factors. Credit risk is partially mitigated by the Company’s ability to cancel the policy if the policyholder does not pay the premium.
The cost of reinsurance premiums (ceded reinsurance premiums) is generally reflected in income (as a charge to income) in a manner consistent with the recognition of premium on the underlying reinsurance contracts. For catastrophe coverage, the cost of reinsurance premiums is generally recognized ratably over the contract period to the extent coverage remains available. Ceded unearned premiums represent the unexpired portion of premiums ceded to reinsurers and are reported as an asset on the consolidated balance sheet.
Fee Income
Fee income includes revenues from risk and claims management services provided to the Company’s insureds and third-party non-insureds, as well as policy issuance and claims management services to workers’ compensation residual market pools. Fee income is earned over the policy period for the services provided to the Company’s insureds, and either over the contract period or as the Company completes its service obligations for the services provided to third-party non-insureds.
Other Revenues
Other revenues include revenues from premium installment charges, which are recognized as collected, gains and losses on dispositions of assets and redemption of debt, and other miscellaneous revenues, including gains recognized as a result of settlements of reinsurance disputes and claim-related legal matters.
Other revenues also include revenues from noninsurance subsidiaries (other than fee income) for insurance-related services and on-line insurance brokerage services and is recognized as the service is provided to the customer.
Income Taxes
The Company recognizes deferred income tax assets and liabilities for the expected future tax effects attributable to temporary differences between the financial statement and tax return bases of assets and liabilities, based on enacted tax rates and other provisions of the tax law. The effect of a change in tax laws or rates on deferred tax assets and liabilities is recognized in income in the period in which such change is enacted. Deferred tax assets are reduced by a valuation allowance if it is more likely than not that all or some portion of the deferred tax assets will not be realized.
Foreign Currency
The Company assigns functional currencies to its foreign operations, which are generally the currencies of the local operating environment. Foreign currency amounts are remeasured to the functional currency, and the resulting foreign exchange gains or losses are reported in net realized investment gains (losses). Functional currency amounts are then translated into U.S. dollars. The foreign currency remeasurement and translation are calculated using current exchange rates for items reported in the balance sheet and average exchange rates for items recorded in earnings. The change in unrealized foreign currency translation gain or loss during the year, net of tax, is a component of other comprehensive income (loss).
Foreign currency gains and losses related to the changes in fair value of available-for-sale fixed maturities are reported in other comprehensive income. All other foreign currency transaction gains and losses are reported in earnings.
Share-Based Compensation
The Company has an employee stock incentive compensation plan that permits grants of nonqualified stock options, incentive stock options, stock appreciation rights, restricted stock, deferred stock, stock units, performance awards and other share-based or share-denominated awards with respect to the Company’s common stock.
Compensation cost is measured based on the grant-date fair value of an award, utilizing the assumptions discussed in note 14.  Compensation cost is recognized for financial reporting purposes over the period in which the employee is required to provide service in exchange for the award (generally the vesting period). In connection with certain share-based awards, participants are entitled to receive dividends during the vesting period, either in cash or dividend equivalent shares, commensurate with the dividends paid to common shareholders. Dividends and dividend equivalent shares on awards that are expected to vest are recorded in retained earnings. Dividends paid on awards that are not expected to vest as part of the Company’s forfeiture estimate are recorded as compensation expense.
Nature of Operations
Business Insurance
Business Insurance offers a broad array of property and casualty insurance products and services to its customers, primarily in the United States, as well as in the United Kingdom, the Republic of Ireland and throughout other parts of the world, including as a corporate member of Lloyd’s. Business Insurance is organized as follows:
Domestic
Select Accounts provides small businesses with property and casualty insurance products and services, including commercial multi-peril, workers’ compensation, commercial automobile, general liability and commercial property.
Middle Market provides mid-sized businesses with property and casualty insurance products and services, including commercial multi-peril, general liability, commercial automobile, workers’ compensation and commercial property, as well as risk management, claims handling and other services. Middle Market generally provides these products to mid-sized businesses through Commercial Accounts, as well as to targeted industries through Construction, Technology & Life Sciences, Public Sector Services and Energy, and additionally, provides mono-line umbrella and excess coverage insurance through Excess Casualty. Middle Market also provides insurance for goods in transit and movable objects, as well as builders’ risk insurance, through Inland Marine; insurance for the marine transportation industry and related services, as well as other businesses involved in international trade, through Ocean Marine; and comprehensive breakdown for equipment, including property and business interruption, through Boiler & Machinery.
National Accounts provides large companies with casualty insurance products and services, including workers’ compensation, commercial automobile and general liability, generally utilizing loss-sensitive products, on both a bundled and unbundled basis, as well as risk management, claims administration and other insurance-related services. National Accounts also includes the Company’s commercial residual market business, which primarily offers workers’ compensation claims, policy management and other administrative services related to the involuntary market. National Accounts also offers insurance-related services, such as claims administration, risk management, loss control and risk
management information services through Constitution State Services LLC, a wholly-owned subsidiary of the Company.
National Property and Other provides traditional and customized commercial property insurance programs to large and mid-sized customers through National Property, as well as insurance coverages and programs provided by Northland Transportation, Agribusiness, Northfield and National Programs. Northland Transportation provides insurance coverage for the commercial trucking industry. Agribusiness serves small- to medium-sized agricultural businesses, including farms, ranches and other agricultural-related operations. Northfield includes commercial property and general liability policies for small, difficult to place commercial business primarily on an excess and surplus lines basis. National Programs offers tailored property and casualty insurance programs on an admitted basis for customers with common risk characteristics or coverage requirements.
International
International, through its operations in the United Kingdom and the Republic of Ireland, provides property and casualty insurance and risk management services to several customer groups, including, among others, those in the technology, manufacturing, public services and commercial real estate industry sectors. International also provides insurance for both the foreign exposures of United States organizations and the United States exposures of foreign organizations through Global Services. At its Lloyd’s syndicate (Syndicate 5000), for which the Company provides 100% of the capital, International underwrites five principal businesses — marine, energy, property, aviation and special risks.
Business Insurance also includes Simply Business, a leading provider of small business insurance policies primarily in the United Kingdom, and Business Insurance Other, which primarily comprises the Company’s asbestos liabilities and other runoff operations, including certain assumed reinsurance arrangements.
Bond & Specialty Insurance
Bond & Specialty Insurance offers surety, fidelity, management liability, professional liability, and other property and casualty coverages and related risk management services to its customers, primarily in the United States, and certain surety and specialty insurance products in Canada, the United Kingdom, the Republic of Ireland and Brazil (through a joint venture, as described below), in each case utilizing various degrees of financially-based underwriting approaches. The range of coverages includes performance, payment and commercial surety bonds for construction and general commercial enterprises; management liability coverages including directors’ and officers’ liability, employment practices liability, fidelity liability, fiduciary liability and cyber risk for public corporations, private companies, not-for-profit organizations and financial institutions; professional liability coverage for a variety of professionals including, among others, lawyers and design professionals; in the United States only, property, workers’ compensation, auto and general liability for financial institutions; and transactional liability coverages to public and private companies.
Bond & Specialty Insurance’s surety business in Brazil is conducted through Junto Holding Brasil S.A. (Junto). The Company owns 49.5% of Junto, a market leader in surety coverages in Brazil. This joint venture investment is accounted for using the equity method and is included in “other investments” on the consolidated balance sheet.
Personal Insurance
Personal Insurance offers a broad range of property and casualty insurance products and services covering individuals’ personal risks, primarily in the United States. Personal Insurance’s primary products of automobile and homeowners insurance are complemented by a broad suite of related products and coverages.
Automobile policies provide coverage for liability to others for both bodily injury and property damage, uninsured motorist protection, and for physical damage to an insured’s own vehicle from collision, fire, flood, hail and theft. In addition, many states require policies to provide first-party personal injury protection, frequently referred to as no-fault coverage.
Homeowners and Other policies provide protection against losses to dwellings and contents from a variety of perils (excluding flooding) as well as coverage for personal liability. The Company writes homeowners insurance for dwellings, condominiums
and tenants, and rental properties. The Company also writes coverage for boats and yachts, valuable personal items such as jewelry, umbrella liability, and weddings and special events.
v3.25.4
Segment Information
12 Months Ended
Dec. 31, 2025
Segment Reporting [Abstract]  
Segment Information SEGMENT INFORMATION
The accounting policies used to prepare the segment reporting data for the Company’s three reportable business segments are the same as those described in the Summary of Significant Accounting Policies in note 1.
The chief operating decision maker (CODM) is the Company’s Chairman and Chief Executive Officer. The CODM reviews the financial performance of the reportable business segments to assess the efficiency with which capital is employed, the effective management of risk, the achievement of strategic initiatives, and how to allocate resources to reportable business segments based on the segment’s historical and projected financial performance. The significant measures of the reportable business segments’ financial performance include segment revenues, consisting of premiums, net investment income, fee income and other revenues, less segment expenses, consisting of claims and claim adjustment expenses, deferred acquisition costs, and general and administrative expenses.
Except as described below for certain legal entities, the Company allocates its invested assets and the related net investment income to its reportable business segments. Pre-tax net investment income is allocated based upon an investable funds concept, which takes into account liabilities (net of non-invested assets) and appropriate capital considerations for each segment. For investable funds, a benchmark investment yield is developed that reflects the estimated duration of the loss reserves’ future cash flows, the interest rate environment at the time the losses were incurred and A+ rated corporate debt instrument yields. For capital, a benchmark investment yield is developed that reflects the average yield on the total investment portfolio. The benchmark investment yields are applied to each segment’s investable funds and capital, respectively, to produce a total notional investment income by segment. The Company’s actual net investment income is allocated to each segment in proportion to the respective segment’s notional investment income to total notional investment income. There are certain legal entities within the Company that are dedicated to specific reportable business segments. The invested assets and related net investment income from these legal entities are reported in the applicable business segment and are not allocated among the other business segments.
The cost of the Company’s catastrophe treaty program is included in the Company’s ceded premiums and is allocated among reportable business segments based on an estimate of actual market reinsurance pricing using expected losses calculated by the Company’s catastrophe model, adjusted for any experience adjustments.
The following tables summarize the components of the Company’s revenues, income (loss), net written premiums and total assets by reportable business segments.
(for the year ended December 31, in millions)Business
Insurance
Bond &
Specialty
Insurance
Personal
Insurance
Total
Reportable
Segments
2025
Premiums$22,412 $4,107 $17,395 $43,914 
Net investment income2,782 445 732 3,959 
Fee income445  50 495 
Other revenues379 27 102 508 
Total segment revenues (1)
26,018 4,579 18,279 48,876 
Claims and claim adjustment expenses14,154 1,764 11,303 27,221 
Amortization of deferred acquisition costs3,796 778 2,692 7,266 
General and administrative expenses3,482 843 1,746 6,071 
Income tax expense891 244 485 1,620 
Segment income (1)
$3,695 $950 $2,053 $6,698 
2024
Premiums$21,345 $3,958 $16,638 $41,941 
Net investment income2,560 390 640 3,590 
Fee income430 — 43 473 
Other revenues322 30 97 449 
Total segment revenues (1)
24,657 4,378 17,418 46,453 
Claims and claim adjustment expenses13,679 1,774 11,606 27,059 
Amortization of deferred acquisition costs3,588 756 2,629 6,973 
General and administrative expenses3,303 832 1,640 5,775 
Income tax expense781 201 294 1,276 
Segment income (1)
$3,306 $815 $1,249 $5,370 
2023
Premiums$19,144 $3,655 $14,962 $37,761 
Net investment income2,085 328 509 2,922 
Fee income400 — 33 433 
Other revenues232 25 96 353 
Total segment revenues (1)
21,861 4,008 15,600 41,469 
Claims and claim adjustment expenses12,696 1,485 12,034 26,215 
Amortization of deferred acquisition costs3,173 673 2,380 6,226 
General and administrative expenses3,041 681 1,417 5,139 
Income tax expense (benefit)368 227 (103)492 
Segment income (loss) (1)
$2,583 $942 $(128)$3,397 
_________________________________________
(1)Segment revenues for reportable business segments exclude net realized investment gains (losses) and revenues included in “interest expense and other.” Segment income (loss) for reportable business segments excludes the after-tax impact of net realized investment gains (losses) and income (loss) from “interest expense and other.”
Prior year reserve development and catastrophe losses by reportable business segments were as follows:
(for the year ended December 31, in millions)Business
Insurance
Bond &
Specialty
Insurance
Personal
Insurance
Total
Reportable
Segments
2025
Net favorable prior year reserve development$233 $221 $582 $1,036 
Catastrophe losses$1,073 $25 $2,592 $3,690 
2024
Net favorable prior year reserve development$90 $129 $490 $709 
Catastrophe losses$1,032 $51 $2,252 $3,335 
2023
Net favorable (unfavorable) prior year reserve development$(289)$285 $147 $143 
Catastrophe losses$838 $37 $2,116 $2,991 
The following table presents the Company’s amortization and depreciation expense by reportable business segment (excluding the amortization of deferred acquisition costs which is disclosed separately in the table above with segment income (loss) by reportable business segment).
(for the year ended December 31, in millions)202520242023
Business Insurance$409 $426 $467 
Bond & Specialty Insurance82 86 71 
Personal Insurance182 197 178 
Total$673 $709 $716 
Net written premiums by market were as follows:
(for the year ended December 31, in millions)202520242023
Business Insurance:
Domestic:
Select Accounts$3,830 $3,727 $3,477 
Middle Market12,541 12,023 11,045 
National Accounts1,262 1,259 1,135 
National Property and Other3,112 3,134 3,008 
Total Domestic20,745 20,143 18,665 
International1,934 1,935 1,765 
Total Business Insurance22,679 22,078 20,430 
Bond & Specialty Insurance:
Domestic:
Management Liability2,326 2,309 2,156 
Surety1,354 1,294 1,147 
Total Domestic3,680 3,603 3,303 
International582 506 539 
Total Bond & Specialty Insurance4,262 4,109 3,842 
Personal Insurance:
Domestic:
Automobile7,745 7,925 7,330 
Homeowners and Other9,051 8,550 7,949 
Total Domestic16,796 16,475 15,279 
International650 694 650 
Total Personal Insurance17,446 17,169 15,929 
Total consolidated net written premiums$44,387 $43,356 $40,201 
Business Segment Reconciliations
(for the year ended December 31, in millions)202520242023
Revenue reconciliation
Earned premiums
Business Insurance:
Domestic:
Workers’ compensation$3,360 $3,470 $3,467 
Commercial automobile3,942 3,590 3,215 
Commercial property3,772 3,616 3,154 
General liability3,566 3,464 3,146 
Commercial multi-peril5,797 5,269 4,686 
Other76 73 76 
Total Domestic20,513 19,482 17,744 
International1,899 1,863 1,400 
Total Business Insurance22,412 21,345 19,144 
Bond & Specialty Insurance:
Domestic:
Fidelity and surety1,492 1,416 1,290 
General liability1,838 1,778 1,639 
Other239 231 225 
Total Domestic3,569 3,425 3,154 
International538 533 501 
Total Bond & Specialty Insurance4,107 3,958 3,655 
Personal Insurance:
Domestic:
Automobile7,902 7,767 6,923 
Homeowners and Other8,824 8,208 7,404 
Total Domestic16,726 15,975 14,327 
International669 663 635 
Total Personal Insurance17,395 16,638 14,962 
Total earned premiums43,914 41,941 37,761 
Net investment income3,959 3,590 2,922 
Fee income495 473 433 
Other revenues508 449 353 
Total segment revenues48,876 46,453 41,469 
Net realized investment losses(48)(30)(105)
Total revenues$48,828 $46,423 $41,364 
Income reconciliation, net of tax
Total segment income$6,698 $5,370 $3,397 
Interest Expense and Other (1)
(373)(345)(325)
Core income6,325 5,025 3,072 
Net realized investment losses(37)(26)(81)
Net income$6,288 $4,999 $2,991 
______________________________________
(1)    The primary component of Interest Expense and Other was after-tax interest expense of $336 million, $310 million and $297 million in 2025, 2024 and 2023, respectively.
(as of December 31, in millions)20252024
Asset reconciliation:
Business Insurance$106,084 $98,311 
Bond & Specialty Insurance13,676 12,628 
Personal Insurance22,787 21,138 
Total assets for reportable segments142,547 132,077 
Other assets (1)
1,161 1,112 
Total consolidated assets$143,708 $133,189 
___________________________________________
(1)    The primary components of other assets as of both December 31, 2025 and 2024, were the over-funded benefit plan assets related to the Company’s qualified domestic pension plan and other intangible assets.
Enterprise-Wide Disclosures
The Company does not have revenue from transactions with a single customer amounting to 10 percent or more of its revenues.
The following table presents revenues of the Company’s operations based on location.
(for the year ended December 31, in millions)202520242023
U.S.$46,360 $43,924 $39,086 
Non-U.S.:
Canada1,345 1,359 1,281 
Other Non-U.S.1,123 1,140 997 
Total Non-U.S.2,468 2,499 2,278 
Total revenues$48,828 $46,423 $41,364 
v3.25.4
Investments
12 Months Ended
Dec. 31, 2025
Investments [Abstract]  
Investments INVESTMENTS
Fixed Maturities
The amortized cost and fair value of investments in fixed maturities classified as available for sale were as follows:
Amortized CostAllowance for Expected Credit LossesGross UnrealizedFair Value
(as of December 31, 2025, in millions)GainsLosses
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$3,927 $ $11 $81 $3,857 
Obligations of U.S. states, municipalities and political subdivisions:
Local general obligation21,724  161 1,096 20,789 
Revenue9,810  58 543 9,325 
State general obligation871  6 29 848 
Pre-refunded414  4 2 416 
Total obligations of U.S. states, municipalities and political subdivisions32,819  229 1,670 31,378 
Debt securities issued by foreign governments313  2 3 312 
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
13,094  268 130 13,232 
Corporate and all other bonds41,564 3 458 965 41,054 
Total (1)$91,717 $3 $968 $2,849 $89,833 
___________________________________________
(1)Excludes fixed maturities classified as held for sale of $3,221 million of amortized cost and $3,243 million of fair value as of December 31, 2025.
Amortized CostAllowance for Expected Credit LossesGross UnrealizedFair Value
(as of December 31, 2024, in millions)GainsLosses
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$5,735 $— $$169 $5,570 
Obligations of U.S. states, municipalities and political subdivisions:
Local general obligation18,604 — 23 1,604 17,023 
Revenue9,268 — 16 704 8,580 
State general obligation1,081 — 73 1,010 
Pre-refunded573 — 572 
Total obligations of U.S. states, municipalities and political subdivisions29,526 — 43 2,384 27,185 
Debt securities issued by foreign governments917 — 13 909 
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
12,888 — 53 336 12,605 
Corporate and all other bonds39,211 118 1,930 37,397 
Total$88,277 $$223 $4,832 $83,666 
The amortized cost and fair value of fixed maturities by contractual maturity follow. Actual maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.
(as of December 31, 2025, in millions)Amortized
Cost
Fair
Value
Due in one year or less$5,902 $5,893 
Due after 1 year through 5 years21,141 20,762 
Due after 5 years through 10 years24,897 24,397 
Due after 10 years26,683 25,549 
78,623 76,601 
Mortgage-backed securities, collateralized mortgage obligations
 and pass-through securities
13,094 13,232 
Total$91,717 $89,833 
Pre-refunded bonds of $416 million and $572 million as of December 31, 2025 and 2024, respectively, were bonds for which U.S. states or municipalities have established irrevocable trusts that are almost exclusively comprised of U.S. Treasury securities and obligations of U.S. government and government agencies and authorities. These trusts were created to fund the payment of principal and interest due under the bonds.
The Company’s fixed maturity investment portfolio as of December 31, 2025 and 2024 included $13.23 billion and $12.61 billion, respectively, of residential mortgage-backed securities, which include pass-through securities and collateralized mortgage obligations (CMOs). Included in the totals as of December 31, 2025 and 2024 were $10.24 billion and $9.93 billion, respectively, of GNMA, FNMA, FHLMC (excluding FHA project loans) and Canadian government guaranteed residential mortgage-backed pass-through securities classified as available for sale. Also included in those totals were residential CMOs classified as available for sale with a fair value of $2.99 billion and $2.68 billion as of December 31, 2025 and 2024, respectively. Approximately 45% and 43% of the Company’s CMO holdings as of December 31, 2025 and 2024, respectively, were guaranteed by or fully collateralized by securities issued by GNMA, FNMA or FHLMC. The weighted average credit rating of the $1.64 billion and $1.53 billion of non-guaranteed CMO holdings was “Aaa” as of both December 31, 2025 and
2024. The weighted average credit rating of all of the above securities was “Aa1” and “Aaa/Aa1” as of December 31, 2025 and 2024, respectively.
As of December 31, 2025 and 2024, the Company held commercial mortgage-backed securities (CMBS, including FHA project loans) of $1.31 billion and $1.15 billion, respectively, which are included in “Corporate and all other bonds” in the tables above. As of December 31, 2025 and 2024, approximately $557 million and $327 million of these securities, respectively, or the loans backing such securities, contained guarantees by the U.S. government or a government-sponsored enterprise. The weighted average credit rating of the $757 million and $825 million of non-guaranteed securities as of December 31, 2025 and 2024, respectively, was “Aaa” as of both dates. The CMBS portfolio is supported by loans that are diversified across economic sectors and geographical areas. The weighted average credit rating of the CMBS portfolio was “Aaa/Aa1” as of both December 31, 2025 and 2024.
As of December 31, 2025 and 2024, the Company had $473 million and $586 million, respectively, of securities on loan as part of a tri-party lending agreement.
Proceeds from the sales of fixed maturities classified as available for sale were $832 million, $1.63 billion and $4.98 billion in 2025, 2024 and 2023, respectively. Gross gains of $1 million, $2 million and $26 million and gross losses of $33 million, $62 million and $119 million were realized on those sales in 2025, 2024 and 2023, respectively. Included in net realized investment losses in 2025, 2024 and 2023 were $35 million, $66 million and $0 million, respectively, of losses resulting from the early redemption of fixed maturities by the issuer prior to the bonds’ maturity date.
As of December 31, 2025 and 2024, the Company’s insurance subsidiaries had $4.04 billion and $3.96 billion, respectively, of securities on deposit at financial institutions in certain states pursuant to the respective states’ insurance regulatory requirements. Funds deposited with third parties to be used as collateral to secure various liabilities on behalf of insureds, cedants and other creditors had a fair value of $51 million and $46 million as of December 31, 2025 and 2024, respectively. In addition, the Company utilizes Lloyd’s trust deposits, whereby owned securities with a fair value of $13 million were held by a wholly-owned subsidiary as of both December 31, 2025 and 2024, and $89 million and $86 million held by TRV as of December 31, 2025 and 2024, respectively, were pledged into Lloyd’s trust accounts to provide a portion of the capital needed to support the Company’s obligations at Lloyd’s.
Equity Securities
The cost and fair value of investments in equity securities were as follows:
(as of December 31, 2025, in millions)CostGross GainsGross LossesFair Value
Common stock$419 $177 $12 $584 
Non-redeemable preferred stock38 1 5 34 
Total (1)$457 $178 $17 $618 
___________________________________________
(1)Excludes equity securities classified as held for sale of $69 million of cost and $104 million of fair value as of December 31, 2025.
(as of December 31, 2024, in millions)CostGross GainsGross LossesFair Value
Common stock$500 $150 $11 $639 
Non-redeemable preferred stock44 — 48 
Total$544 $154 $11 $687 
The Company recognized $50 million and $89 million of net gains on equity securities still held as of December 31, 2025 and 2024, respectively.
Real Estate
The Company’s real estate investments include warehouses, office buildings and other commercial land and properties that are directly owned. The Company negotiates commercial leases with individual tenants through unrelated, licensed real estate brokers. Negotiated terms and conditions include, among others, rental rates, length of lease period and improvements to the premises to be provided by the Company.
Proceeds from the sales of real estate investments were $0 million in 2025, $64 million in 2024 and $0 million in 2023. Gains of $17 million were realized on those sales in 2024. Net realized investment losses in 2025, 2024 and 2023 included $0 million, $5 million and $9 million, respectively, of impairment charges related to real estate. Accumulated depreciation on real estate held for investment purposes was $620 million and $581 million at December 31, 2025 and 2024, respectively.
Future minimum rental income on operating leases relating to the Company’s real estate properties is expected to be $124 million, $114 million, $92 million, $63 million and $46 million for 2026, 2027, 2028, 2029 and 2030, respectively, and $69 million for 2031 and thereafter.
Short-term Securities
The Company’s short-term securities consist of Aaa-rated registered money market funds, U.S. Treasury securities, high-quality commercial paper (primarily A1/P1) and high-quality corporate securities purchased within a year to their maturity with a combined average of 24 days to maturity as of December 31, 2025. The amortized cost of these securities, which totaled $5.72 billion and $4.77 billion as of December 31, 2025 and 2024, respectively, approximated their fair value.
Other Investments
Included in other investments are private equity, hedge fund and real estate partnerships that are accounted for under the equity method of accounting and typically report their financial statement information to the Company one month to three months following the end of the reporting period. Accordingly, net investment income from these other investments is generally reflected in the Company’s financial statements on a quarter lag basis.
Variable Interest Entities
Entities which do not have sufficient equity at risk to allow the entity to finance its activities without additional financial support or in which the equity investors, as a group, do not have the characteristic of a controlling financial interest are referred to as variable interest entities (VIE). A VIE is consolidated by the variable interest holder that is determined to have the controlling financial interest (primary beneficiary) as a result of having both the power to direct the activities of a VIE that most significantly impact the VIE’s economic performance and the obligation to absorb losses or right to receive benefits from the VIE that could potentially be significant to the VIE. The Company determines whether it is the primary beneficiary of an entity subject to consolidation based on a qualitative assessment of the VIE’s capital structure, contractual terms, nature of the VIE’s operations and purpose and the Company’s relative exposure to the related risks of the VIE on the date it becomes initially involved in the VIE. The Company reassesses its VIE determination with respect to an entity on an ongoing basis.
The Company is a passive investor in limited partner equity interests issued by third party VIEs. These include certain of the Company’s investments in private equity limited partnerships, hedge funds and real estate partnerships where the Company is not related to the general partner. These investments are generally accounted for under the equity method and reported in the Company’s consolidated balance sheet as other investments unless the Company is deemed the primary beneficiary. These equity interests generally cannot be redeemed. Distributions from these investments are received by the Company as a result of liquidation of the underlying investments of the funds and/or as income distribution. The Company’s maximum exposure to loss with respect to these investments is limited to the investment carrying amounts reported in the Company’s consolidated balance sheet and any unfunded commitment. The Company considers an investment in a VIE in which it has a 20% or greater equity interest as a significant VIE. Neither the Company’s carrying amounts nor the unfunded commitments related to these significant VIE’s are material individually or in the aggregate.
Unrealized Investment Losses
The following tables summarize, for all fixed maturities classified as available for sale in an unrealized loss position as of December 31, 2025 and 2024, the aggregate fair value and gross unrealized loss by the length of time those securities have been continuously in an unrealized loss position. The fair value amounts reported in the tables are estimates that are prepared using the process described in note 4. The Company also relies upon estimates of several factors in its review and evaluation of individual investments, using the process described in note 1, in determining whether a credit loss impairment exists.
Less than 12 months12 months or longerTotal
(as of December 31, 2025, in millions)Fair
Value
Gross
Unrealized
Losses
Fair
Value
Gross
Unrealized
Losses
Fair
Value
Gross
Unrealized
Losses
Fixed maturities
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$611 $5 $1,684 $76 $2,295 $81 
Obligations of U.S. states, municipalities and political subdivisions2,234 28 16,428 1,642 18,662 1,670 
Debt securities issued by foreign governments
34  75 3 109 3 
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
437 2 1,835 128 2,272 130 
Corporate and all other bonds2,351 13 17,428 952 19,779 965 
Total$5,667 $48 $37,450 $2,801 $43,117 $2,849 
Less than 12 months12 months or longerTotal
(as of December 31, 2024, in millions)Fair
Value
Gross
Unrealized
Losses
Fair
Value
Gross
Unrealized
Losses
Fair
Value
Gross
Unrealized
Losses
Fixed maturities
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$557 $$2,830 $168 $3,387 $169 
Obligations of U.S. states, municipalities and political subdivisions8,584 160 15,007 2,224 23,591 2,384 
Debt securities issued by foreign governments
113 454 12 567 13 
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
7,359 148 1,419 188 8,778 336 
Corporate and all other bonds7,341 144 21,999 1,786 29,340 1,930 
Total $23,954 $454 $41,709 $4,378 $65,663 $4,832 
The following tables summarize, for all fixed maturities reported at fair value for which fair value was less than 80% of amortized cost as of December 31, 2025 and 2024, the gross unrealized investment loss by length of time those securities have continuously been in an unrealized loss position of greater than 20% of amortized cost.
 Period For Which Fair Value is Less Than 80% of Amortized Cost
(as of December 31, 2025, in millions)3 months or lessGreater than 3 months, 6 months or lessGreater than 6 months, 12 months or lessGreater than 12 monthsTotal
Fixed maturities
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$ $ $ $ $ 
Obligations of U.S. states, municipalities and political subdivisions18  10 550 578 
Debt securities issued by foreign governments
     
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
     
Corporate and all other bonds1  4  5 
Total$19 $ $14 $550 $583 
 Period For Which Fair Value is Less Than 80% of Amortized Cost
(as of December 31, 2024, in millions)3 months or lessGreater than 3 months, 6 months or lessGreater than 6 months, 12 months or lessGreater than 12 monthsTotal
Fixed maturities
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$— $— $— $— $— 
Obligations of U.S. states, municipalities and political subdivisions366 — 43 635 1,044 
Debt securities issued by foreign governments
— — — — — 
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
58 — — — 58 
Corporate and all other bonds13 — — 16 
Total$437 $— $43 $638 $1,118 
Increases in the applicable interest rates resulted in the gross unrealized investment losses disclosed in the tables above; however, the net unrealized loss is considered temporary in nature as the decrease in value is not due to credit impairments and there is no impact on expected contractual cash flows from fixed maturities.
Impairment Charges
Credit impairment charges included in net realized investment losses in the consolidated statement of income were as follows:
(for the year ended December 31, in millions)202520242023
Fixed maturities
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$ $— $— 
Obligations of U.S. states, municipalities and political subdivisions — 
Debt securities issued by foreign governments — — 
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
 — — 
Corporate and all other bonds2 
Total fixed maturities$2 $$
The following table presents changes in the allowance for expected credit losses on fixed maturities classified as available for sale for the category of Corporate and All Other Bonds (no other categories of fixed maturities currently have an allowance for expected credit losses).
Fixed Maturities
Corporate and All Other Bonds
(in millions)As of and For the Twelve Months Ended December 31, 2025As of and For the Twelve Months Ended December 31, 2024
Balance, beginning of period$2 $
Additions for expected credit losses on securities where no credit losses were previously recognized
4 
Additions (reductions) for expected credit losses on securities where credit losses were previously recognized (1)
 Reductions due to sales/defaults of credit-impaired securities(3)(7)
Reductions for impairments of securities which the Company intends to sell or more likely than not will be required to sell  — 
Balance, end of period$3 $
Total net impairment charges, including credit impairments, reported in net realized investment losses in the consolidated statement of income, were $2 million, $10 million and $12 million for the years ended December 31, 2025, 2024 and 2023, respectively. Net realized investment losses in 2025, 2024 and 2023 included $0 million, $5 million and $9 million, respectively, of realized losses related to real estate. Credit losses related to the fixed maturity portfolio for 2025 and 2024 represented less than 1% of the fixed maturity portfolio on a pre-tax basis and less than 1% of shareholders’ equity on an after-tax basis as of both December 31, 2025 and 2024.
Concentrations and Credit Quality
Concentrations of credit risk arise from exposure to counterparties that are engaged in similar activities and have similar economic characteristics that could cause their ability to meet contractual obligations to be similarly affected by changes in economic or other conditions. The Company seeks to mitigate credit risk by actively monitoring the creditworthiness of counterparties, obtaining collateral as deemed appropriate and applying controls that include credit approvals, limits of credit exposure and other monitoring procedures.
As of December 31, 2025 and 2024, other than U.S. Treasury securities and obligations of U.S. government and government agencies and authorities, the Company was not exposed to any concentration of credit risk of a single issuer greater than 5% of the Company’s shareholders’ equity.
Included in fixed maturities are below investment grade securities totaling $1.05 billion and $980 million as of December 31, 2025 and 2024, respectively. The Company defines its below investment grade securities as those securities rated below investment grade by external rating agencies, or the equivalent by the Company when a public rating does not exist. Such securities include below investment grade bonds that are publicly traded and certain other privately issued bonds that are classified as below investment grade loans.
Net Investment Income
(for the year ended December 31, in millions)202520242023
Gross investment income
Fixed maturities$3,433 $2,948 $2,472 
Equity securities21 21 18 
Short-term securities253 280 241 
Real estate investments59 70 64 
Other investments246 318 171 
Gross investment income4,012 3,637 2,966 
Investment expenses53 47 44 
Net investment income$3,959 $3,590 $2,922 
Changes in net unrealized gains (losses) on investment securities that are included as a separate component of other comprehensive income (loss) were as follows:
(as of and for the year ended December 31, in millions)202520242023
Changes in net unrealized investment gains (losses)
Fixed maturities$2,750 $(640)$2,248 
Other investments(3)
Change in net pre-tax unrealized gains (losses) on investment securities2,747 (639)2,250 
Related tax expense (benefit)585 (128)481 
Change in net unrealized gains (losses) on investment securities2,162 (511)1,769 
Balance, beginning of year(3,640)(3,129)(4,898)
Balance, end of year$(1,478)$(3,640)$(3,129)
Derivative Financial Instruments
From time to time, the Company enters into certain derivative financial instruments that are reported on the balance sheet at fair value. The change in fair value of these investments is reported in net realized investment gains and losses.
v3.25.4
Fair Value Measurements
12 Months Ended
Dec. 31, 2025
Fair Value Disclosures [Abstract]  
Fair Value Measurements FAIR VALUE MEASUREMENTS
The Company’s estimates of fair value for financial assets and financial liabilities are based on the framework established in the fair value accounting guidance. The framework is based on the inputs used in valuation, gives the highest priority to quoted prices in active markets and requires that observable inputs be used in the valuations when available. The disclosure of fair value estimates in the fair value accounting guidance hierarchy is based on whether the significant inputs into the valuation are observable. In determining the level of the hierarchy in which the estimate is disclosed, the highest priority is given to unadjusted quoted prices in active markets and the lowest priority to unobservable inputs that reflect the Company’s significant market assumptions. The level in the fair value hierarchy within which the fair value measurement is reported is based on the lowest level input that is significant to the measurement in its entirety. The three levels of the hierarchy are as follows:
Level 1 - Unadjusted quoted market prices for identical assets or liabilities in active markets that the Company has the ability to access.
Level 2 - Quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in inactive markets; or valuations based on models where the significant inputs are observable (e.g., interest rates, yield curves, prepayment speeds, default rates, loss severities, etc.) or can be corroborated by observable market data.
Level 3 - Valuations based on models where significant inputs are not observable. The unobservable inputs reflect the Company’s own assumptions about the inputs that market participants would use.
Valuation of Investments Reported at Fair Value in Financial Statements
The fair value of a financial instrument is the estimated amount at which the instrument could be exchanged in an orderly transaction between knowledgeable, unrelated, willing parties, i.e., not in a forced transaction. The estimated fair value of a financial instrument may differ from the amount that could be realized if the security was sold in an immediate sale, e.g., a forced transaction. Additionally, the valuation of investments is more subjective when markets are less liquid due to the lack of market based inputs, which may increase the potential that the estimated fair value of an investment is not reflective of the price at which an actual transaction would occur.
For investments that have quoted market prices in active markets, the Company uses the unadjusted quoted market prices as fair value and includes these prices in the amounts disclosed in Level 1 of the hierarchy. The Company receives the quoted market prices from third party, nationally recognized pricing services. When quoted market prices are unavailable, the Company utilizes these pricing services to determine an estimate of fair value. The fair value estimates provided from these pricing services are included in the amount disclosed in Level 2 of the hierarchy. If quoted market prices and an estimate from a pricing service are unavailable, the Company produces an estimate of fair value based on internally developed valuation techniques, which, depending on the level of observable market inputs, will render the fair value estimate as Level 2 or Level 3. The Company bases all of its estimates of fair value for assets on the bid price as it represents what a third-party market participant would be willing to pay in an arm’s length transaction.
Fixed Maturities
The Company utilized a pricing service to estimate fair value measurements for approximately 99% of its fixed maturities as of both December 31, 2025 and 2024. The pricing service utilizes market quotations for fixed maturity securities that have quoted prices in active markets. Since fixed maturities other than U.S. Treasury securities generally do not trade on a daily basis, the pricing service prepares estimates of fair value measurements for these securities using its proprietary pricing applications, which include available relevant market information, benchmark curves, benchmarking of like securities, sector groupings and matrix pricing. Additionally, the pricing service uses an Option Adjusted Spread model to develop prepayment and interest rate scenarios.
The pricing service evaluates each asset class based on relevant market information, relevant credit information, perceived market movements and sector news. The market inputs utilized in the pricing evaluation, listed in the approximate order of priority, include: benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers, reference data, and industry and economic events. The extent of the use of each market input depends on the asset class and the market conditions. Depending on the security, the priority of the use of inputs may change or some market inputs may not be relevant. For some securities, additional inputs may be necessary.
The pricing service utilized by the Company has indicated that it will only produce an estimate of fair value if there is objectively verifiable information to produce a valuation. If the pricing service discontinues pricing an investment, the Company would be required to produce an estimate of fair value using some of the same methodologies as the pricing service but would have to make assumptions for any market-based inputs that were unavailable due to market conditions. The Company reviews the estimates of fair value provided by the pricing service and compares the estimates to the Company’s knowledge of the market to determine if the estimates obtained are representative of the prices in the market. In addition, the Company has periodic discussions with the pricing service to discuss and understand any changes in process and their responsiveness to changes occurring in the markets. The Company also monitors all monthly price changes and further evaluates any securities whose value changed more than 10% from the prior month. The Company has implemented various other processes including randomly selecting purchased or sold securities and comparing execution prices to the estimates from the pricing service as well as reviewing securities whose valuation did not change from their previous valuation (stale price review). The Company also uses a second  independent pricing service to further test the primary pricing service’s valuation of
the Company’s fixed maturity portfolio. These processes have not highlighted any significant issues with the fair value estimates received from the primary pricing service.
The fair value estimates of most fixed maturity investments are based on observable market information rather than market quotes. Accordingly, the estimates of fair value for such fixed maturities, other than U.S. Treasury securities, provided by the pricing service are included in the amount disclosed in Level 2 of the hierarchy. The estimated fair value of U.S. Treasury securities is included in the amount disclosed in Level 1 as the estimates are based on unadjusted market prices.
The Company also holds certain fixed maturity investments which are not priced by the pricing service and, accordingly, estimates the fair value of such fixed maturities using an internal matrix that is based on market information regarding interest rates, credit spreads and liquidity. The underlying source data for calculating the matrix of credit spreads relative to the U.S. Treasury curve are observable market-based indices that relate to corporate and high-yield fixed maturity investments. The Company includes the fair value estimates of these corporate bonds in Level 2, since all significant inputs are market observable.
While the vast majority of the Company’s fixed maturities are included in Level 2, the Company holds a number of corporate bonds which are not valued by the pricing service and estimates the fair value of these bonds using either another internal pricing matrix, a present value income approach, or a broker quote (collectively, the other methodologies). The other methodologies include some unobservable inputs that are significant to the valuation. Due to the limited amount of observable market information available in the estimation of fair value, the Company includes the fair value estimates for bonds that are valued using the other methodologies in Level 3. 
Equity Securities — Common Stock and Non-Redeemable Preferred Stock
For public common stock and non-redeemable preferred stocks, the Company receives prices from pricing services that are based on observable market transactions and includes these estimates in the amount disclosed in Level 1. When current market quotes in active markets are unavailable for certain non-redeemable preferred stocks held by the Company, the Company receives an estimate of fair value from the pricing services. The services utilize similar methodologies to price the non-redeemable preferred stocks as they do for the fixed maturities. The Company includes the fair value estimate for these non-redeemable preferred stocks in the amount disclosed in Level 2.
For certain investments in non-public common and preferred equity securities, the fair value estimate is determined either internally or by an external fund manager based on the impact of recent observable transactions related to the investment, recent filings, operating results, balance sheet stability, growth and other business and market sector fundamentals. Due to the significant unobservable inputs in these valuations, the Company included the fair value estimate of $32 million and $37 million for these investments as of December 31, 2025 and 2024, respectively, in the amounts disclosed in Level 3.
Other Investments
The Company holds investments in various publicly-traded securities which are reported in other investments. These investments include mutual funds and other small holdings. The $9 million and $20 million fair value of these investments as of December 31, 2025 and 2024, respectively, was disclosed in Level 1.
Fair Value Hierarchy
The following tables present the level within the fair value hierarchy at which the Company’s financial assets and financial liabilities are measured on a recurring basis.
(as of December 31, 2025, in millions)TotalLevel 1Level 2Level 3
Invested assets:
Fixed maturities
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$3,857 $3,857 $ $ 
Obligations of U.S. states, municipalities and political subdivisions31,378  31,378  
Debt securities issued by foreign governments312  312  
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
13,232  13,232  
Corporate and all other bonds41,054 25 40,698 331 
Total fixed maturities89,833 3,882 85,620 331 
Equity securities
Common stock584 576  8 
Non-redeemable preferred stock34 7 3 24 
Total equity securities618 583 3 32 
Other investments9 9   
Assets held for sale3,347 104 3,243  
Total$93,807 $4,578 $88,866 $363 
(as of December 31, 2024, in millions)TotalLevel 1Level 2Level 3
Invested assets:
Fixed maturities
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$5,570 $5,570 $— $— 
Obligations of U.S. states, municipalities and political subdivisions27,185 — 27,185 — 
Debt securities issued by foreign governments909 — 909 — 
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
12,605 — 12,602 
Corporate and all other bonds37,397 — 37,151 246 
Total fixed maturities83,666 5,570 77,847 249 
Equity securities
Common stock639 631 — 
Non-redeemable preferred stock48 16 29 
Total equity securities687 647 37 
Other investments20 20 — — 
Total$84,373 $6,237 $77,850 $286 
The following tables present the changes in the Level 3 fair value category for the years ended December 31, 2025 and 2024.
(in millions)Fixed
Maturities
Equity SecuritiesOther
Investments
Total
Balance as of December 31, 2024$249 $37 $ $286 
Total realized and unrealized investment gains (losses):
Reported in net realized investment losses (1)
 (6) (6)
Reported in other comprehensive income (loss)3   3 
Purchases, sales and settlements/maturities:
Purchases 1  1 
Sales    
Settlements/maturities(51)  (51)
Gross transfers into Level 3135   135 
Gross transfers out of Level 3(5)  (5)
Balance as of December 31, 2025$331 $32 $ $363 
Amount of total realized investment gains (losses) for the period included in the consolidated statement of income attributable to changes in the fair value of assets still held at the reporting date
$ $(6)$ $(6)
___________________________________________
(1)Includes impairments on investments held at the end of the period as well as amortization on fixed maturities.
(in millions)Fixed
Maturities
Equity SecuritiesOther
Investments
Total
Balance as of December 31, 2023$258 $37 $— $295 
Total realized and unrealized investment gains (losses):
Reported in net realized investment losses (1)
— — 
Reported in other comprehensive income (loss)(1)— — (1)
Purchases, sales and settlements/maturities:
Purchases85 — 87 
Sales— (3)— (3)
Settlements/maturities(25)— — (25)
Gross transfers into Level 3— — — — 
Gross transfers out of Level 3(68)— — (68)
Balance as of December 31, 2024$249 $37 $— $286 
Amount of total realized investment gains (losses) for the period included in the consolidated statement of income attributable to changes in the fair value of assets still held at the reporting date
$— $$— $
___________________________________________
(1)Includes impairments on investments held at the end of the period as well as amortization on fixed maturities.
A “Corporate and all other bonds” investment totaling $133 million that had been valued using observable market inputs as of December 31, 2024 and disclosed in Level 2 was valued using a broker quote as of December 31, 2025 and transferred into Level 3 during the twelve months ended December 31, 2025. There was no other significant activity in Level 3 of the hierarchy during the year ended December 31, 2025.
Financial Instruments Disclosed, But Not Carried, At Fair Value
The following tables present the carrying value and fair value of the Company’s financial assets and financial liabilities disclosed, but not carried, at fair value, and the level within the fair value hierarchy at which such assets and liabilities are categorized.
(as of December 31, 2025, in millions)Carrying
Value
Fair
Value
Level 1Level 2Level 3
Financial assets:
Short-term securities$5,716 $5,716 $1,398 $4,267 $51 
Financial liabilities:
Debt$9,167 $8,538 $ $8,538 $ 
Commercial paper100 100  100  
(as of December 31, 2024, in millions)Carrying
Value
Fair
Value
Level 1Level 2Level 3
Financial assets:
Short-term securities$4,766 $4,766 $1,933 $2,788 $45 
Financial liabilities:
Debt$7,933 $7,095 $— $7,095 $— 
Commercial paper100 100 — 100 — 
The Company had no material assets or liabilities that were measured at fair value on a non-recurring basis during the years ended December 31, 2025 and 2024.
v3.25.4
Allowance for Expected Credit Losses
12 Months Ended
Dec. 31, 2025
Credit Loss [Abstract]  
Allowance for Expected Credit Losses ALLOWANCE FOR EXPECTED CREDIT LOSSES
Premiums Receivable
The following table presents the balances of premiums receivable, net of the allowance for expected credit losses, as of December 31, 2025 and 2024, and the changes in the allowance for expected credit losses for the twelve months ended December 31, 2025 and 2024.
As of and For the Twelve Months Ended December 31, 2025As of and For the Twelve Months Ended December 31, 2024
(in millions)Premiums Receivable, Net of Allowance for Expected Credit LossesAllowance for Expected Credit LossesPremiums Receivable, Net of Allowance for Expected Credit LossesAllowance for Expected Credit Losses
 
Balance, beginning of period$11,110 $58 $10,282 $69 
Current period change for expected credit losses65 50 
Write-offs of uncollectible premiums receivable64 61 
Less amounts classified as held for sale1 — 
Balance, end of period$10,992 $58 $11,110 $58 
Reinsurance Recoverables
The following table presents the balances of reinsurance recoverables, net of the allowance for estimated uncollectible reinsurance, as of December 31, 2025 and 2024, and the changes in the allowance for estimated uncollectible reinsurance for the twelve months ended December 31, 2025 and 2024.
As of and For the Twelve Months Ended December 31, 2025As of and For the Twelve Months Ended December 31, 2024
(in millions)Reinsurance Recoverables, Net of Allowance for Estimated Uncollectible ReinsuranceAllowance for Estimated Uncollectible ReinsuranceReinsurance Recoverables, Net of Allowance for Estimated Uncollectible ReinsuranceAllowance for Estimated Uncollectible Reinsurance
 
Balance, beginning of period$8,000 $119 $8,143 $118 
Current period change for estimated uncollectible reinsurance16 
Write-offs of uncollectible reinsurance recoverables — 
Less amounts classified as held for sale6 — 
Balance, end of period$7,886 $129 $8,000 $119 
Of the total reinsurance recoverables as of December 31, 2025, $6.09 billion, or 89%, were rated by A.M. Best Company, after deducting mandatory pools and associations and before allowances for estimated uncollectible reinsurance. The Company utilizes updated A.M. Best credit ratings on a quarterly basis when determining the allowance. Of the total rated by A.M. Best Company, 95% were rated A- or better. The remaining 11% of reinsurance recoverables were comprised of the following: 6% related to captive insurance companies, 1% related to the Company’s participation in voluntary pools, and 4% were balances from other companies not rated by A.M. Best Company. Certain of the Company’s reinsurance recoverables are collateralized by letters of credit, funds held or trust agreements.
Contractholder Receivables
The following table presents the balances of contractholder receivables, net of the allowance for expected credit losses, as of December 31, 2025 and 2024, and the changes in the allowance for expected credit losses for the twelve months ended December 31, 2025 and 2024.
As of and For the Twelve Months Ended December 31, 2025As of and For the Twelve Months Ended December 31, 2024
(in millions)Contractholder Receivables, Net of Allowance for Expected Credit LossesAllowance for Expected Credit LossesContractholder Receivables, Net of Allowance for Expected Credit LossesAllowance for Expected Credit Losses
 
Balance, beginning of period$3,171 $18 $3,249 $20 
Current period change for expected credit losses(2)(2)
Write-offs of uncollectible contractholder receivables — 
Balance, end of period$3,010 $16 $3,171 $18 
v3.25.4
Reinsurance
12 Months Ended
Dec. 31, 2025
Reinsurance Disclosures [Abstract]  
Reinsurance REINSURANCE
The Company’s consolidated financial statements reflect the effects of assumed and ceded reinsurance transactions. Assumed reinsurance refers to the acceptance of certain insurance risks that other insurance companies have underwritten. Ceded reinsurance involves transferring certain insurance risks (along with the related written and earned premiums) the Company has underwritten to other insurance companies who agree to share these risks. The primary purpose of ceded reinsurance is to protect the Company, at a cost, from losses in excess of the amount it is prepared to accept and to protect the Company’s capital. Reinsurance is placed on both a quota-share and excess-of-loss basis. Ceded reinsurance arrangements do not discharge the Company as the primary insurer, except for instances where the primary policy or policies have been novated, such as in certain structured settlement agreements.
The Company utilizes a corporate catastrophe excess-of-loss reinsurance treaty with unaffiliated reinsurers to manage its exposure to losses resulting from catastrophes and to protect its capital. In addition to the coverage provided under this treaty, the Company also utilizes a reinsurance agreement entered into in connection with catastrophe bonds issued by Long Point Re IV to protect against certain weather-related and earthquake losses in the Northeastern United States and a Northeast property catastrophe excess-of-loss reinsurance treaty to protect against losses resulting from weather-related and earthquake catastrophes in the Northeastern United States. The Company also utilizes excess-of-loss treaties to protect against earthquake losses up to a certain threshold in Business Insurance (for certain markets) and for Personal Insurance, and several reinsurance treaties specific to its international operations.
The Company monitors the financial condition of its reinsurers under voluntary reinsurance arrangements to evaluate the collectability of amounts due from reinsurers and as a basis for determining the reinsurers with which the Company conducts ongoing business. In addition, in the ordinary course of business, the Company may become involved in coverage disputes with its reinsurers. Some of these disputes could result in lawsuits and arbitrations brought by or against the reinsurers to determine the Company’s rights and obligations under the various reinsurance agreements. The Company employs dedicated specialists and strategies to manage reinsurance collections and disputes.
Included in reinsurance recoverables are amounts related to involuntary reinsurance arrangements.  The Company is required to participate in various involuntary reinsurance arrangements through assumed reinsurance, principally with regard to residual market mechanisms in workers’ compensation and automobile insurance, as well as homeowners’ insurance in certain coastal areas. In addition, the Company provides services for several of these involuntary arrangements (mandatory pools and associations) under which it writes such residual market business directly, then cedes 100% of this business to the mandatory pool.  Such participations and servicing arrangements are arranged to mitigate credit risk to the Company, as any ceded balances are jointly backed by all the pool members.
Also included in reinsurance recoverables are amounts related to certain structured settlements. Structured settlements are annuities purchased from various life insurance companies to settle certain personal physical injury claims, of which workers’ compensation claims comprise a significant portion. In cases where the Company did not receive a release from the claimant, the structured settlement is included in reinsurance recoverables and the related claim cost is included in the liability for claims and claim adjustment expense reserves, as the Company retains the contingent liability to the claimant.  If it is expected that the life insurance company is not able to pay, the Company would recognize an impairment of the related reinsurance recoverable if, and to the extent, the purchased annuities are not covered by state guaranty associations. In the event that the life insurance company fails to make the required annuity payments, the Company would be required to make such payments.
The following is a summary of reinsurance financial data reflected in the consolidated statement of income.
(for the year ended December 31, in millions)202520242023
Written premiums
Direct$45,594 $44,377 $40,983 
Assumed2,136 2,173 1,989 
Ceded(3,343)(3,194)(2,771)
Total net written premiums$44,387 $43,356 $40,201 
Earned premiums
Direct$45,042 $42,983 $38,796 
Assumed2,110 2,095 1,614 
Ceded(3,238)(3,137)(2,649)
Total net earned premiums$43,914 $41,941 $37,761 
Percentage of assumed earned premiums to net earned premiums4.8 %5.0 %4.3 %
Ceded claims and claim adjustment expenses incurred$1,679 $1,249 $1,462 
Ceded premiums include the premiums paid for coverage provided by the Company’s catastrophe bonds.
Reinsurance recoverables include amounts recoverable on both paid and unpaid claims and claim adjustment expenses and were as follows:
(as of December 31, in millions)20252024
Gross reinsurance recoverables on paid and unpaid claims and claim adjustment expenses$4,352 $3,962 
Gross structured settlements2,469 2,626 
Mandatory pools and associations1,485 1,531 
     Gross reinsurance recoverables8,306 8,119 
Allowance for estimated uncollectible reinsurance(135)(119)
Less amounts classified as held for sale285 — 
    Net reinsurance recoverables$7,886 $8,000 
Terrorism Risk Insurance Program
The Terrorism Risk Insurance Program is a Federal program administered by the Department of the Treasury authorized through December 31, 2027 that provides for a system of shared public and private compensation for certain insured losses resulting from certified acts of terrorism.
In order for a loss to be covered under the program (subject losses), the loss must meet certain aggregate industry loss minimums and must be the result of an event that is certified as an act of terrorism by the U.S. Secretary of the Treasury, in consultation with the Secretary of Homeland Security and the Attorney General of the United States. The annual aggregate industry loss minimum under the program is $200 million. The program excludes from participation the following types of insurance: Federal crop insurance, private mortgage insurance, financial guaranty insurance, medical malpractice insurance, health or life insurance, flood insurance, reinsurance, commercial automobile, professional liability (other than directors’ and officers’), surety, burglary and theft, and farm-owners multi-peril. In the case of a war declared by Congress, only workers’ compensation losses are covered by the program. All commercial property and casualty insurers licensed in the United States are generally required to participate in the program. Under the program, a participating insurer, in exchange for making terrorism insurance available, is entitled to be reimbursed by the Federal Government for 80% of subject losses, after an insurer deductible, subject to an annual cap. 
The deductible for any calendar year is equal to 20% of the insurer’s direct earned premiums for covered lines for the preceding calendar year. The Company’s estimated deductible under the program is $4.01 billion for 2026. The annual cap limits the amount of aggregate subject losses for all participating insurers to $100 billion. Once subject losses have reached the $100
billion aggregate during a program year, participating insurers will not be liable under the program for additional covered terrorism losses for that program year. There have been no terrorism-related losses that have triggered program coverage since the program was established. Given that the law establishing the program remains untested, there is substantial uncertainty as to how it will be applied if an act of terrorism is certified under the program. In addition, application of the program to a specific event will depend upon whether the government has designated such event as a covered event. It is also possible that future legislative action could change or eliminate the program. Further, given the unpredictable frequency and severity of terrorism losses, as well as the limited terrorism coverage in the Company’s own reinsurance program, future losses from acts of terrorism, particularly involving nuclear, biological, chemical or radiological events, could be material to the Company’s operating results, financial position and/or liquidity in future periods. In addition, the Company may not have sufficient resources to respond to claims arising from a high frequency of high severity natural catastrophes and/or of man-made catastrophic events involving conventional means. While the Company seeks to manage its exposure to man-made catastrophic events involving conventional means, the Company may not have sufficient resources to respond to claims arising out of one or more man-made catastrophic events involving cyber, nuclear, biological, chemical or radiological means.
v3.25.4
Goodwill and Other Intangible Assets
12 Months Ended
Dec. 31, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangible Assets GOODWILL AND OTHER INTANGIBLE ASSETS
Goodwill
The following table presents the carrying amount of the Company’s goodwill by segment. Each reportable segment includes goodwill associated with the Company’s international business which is subject to the impact of changes in foreign currency exchange rates.
(as of December 31, in millions)20252024
Business Insurance$2,601 $2,572 
Bond & Specialty Insurance838 834 
Personal Insurance809 801 
Other26 26 
Less amounts classified as held for sale208 — 
Total$4,066 $4,233 

Other Intangible Assets
The following tables present a summary of the Company’s other intangible assets by major asset class.
(as of December 31, 2025, in millions)Gross
Carrying
Amount
Accumulated
Amortization
Net
Subject to amortization
Customer-related$186 $93 $93 
Contract-based204 198 6 
Marketing-related18 6 12 
Total subject to amortization408 297 111 
Not subject to amortization226  226 
Less amounts classified as held for sale5 4 1 
Total$629 $293 $336 
(as of December 31, 2024, in millions)Gross
Carrying
Amount
Accumulated
Amortization
Net
Subject to amortization
Customer-related$185 $74 $111 
Contract-based204 196 
Marketing-related18 15 
Total subject to amortization407 273 134 
Not subject to amortization226 — 226 
Total$633 $273 $360 
Amortization expense of intangible assets was $20 million, $21 million and $12 million for the years ended December 31, 2025, 2024 and 2023, respectively. Amortization expense for all intangible assets subject to amortization is estimated to be $20 million in 2026, $17 million in 2027, $9 million in 2028, $8 million in 2029 and $8 million in 2030.
v3.25.4
Insurance Claim Reserves
12 Months Ended
Dec. 31, 2025
Insurance Loss Reserves [Abstract]  
Insurance Claim Reserves INSURANCE CLAIM RESERVES
Claims and claim adjustment expense reserves were as follows:
(as of December 31, in millions)20252024
Property-casualty$67,643 $64,088 
Accident and health3 
Less amounts classified as held for sale1,909 — 
Total$65,737 $64,093 
The following table presents a reconciliation of beginning and ending property casualty reserve balances for claims and claim adjustment expenses.
(as of and for the year ended December 31, in millions)202520242023
Claims and claim adjustment expense reserves at beginning of year$64,088 $61,621 $58,643 
Less reinsurance recoverables on unpaid losses7,669 7,817 7,790 
Net reserves at beginning of year56,419 53,804 50,853 
Estimated claims and claim adjustment expenses for claims arising in the current year
28,051 27,508 26,159 
Estimated decrease in claims and claim adjustment expenses for claims arising in prior years(939)(548)(38)
Total increases27,112 26,960 26,121 
Claims and claim adjustment expense payments for claims arising in:
Current year10,606 10,924 10,852 
Prior years13,307 13,227 12,424 
Total payments23,913 24,151 23,276 
Unrealized foreign exchange (gain) loss228 (194)106 
Net reserves at end of year59,846 56,419 53,804 
Plus reinsurance recoverables on unpaid losses7,797 7,669 7,817 
Claims and claim adjustment expense reserves at end of year$67,643 $64,088 $61,621 
Gross claims and claim adjustment expense reserves as of December 31, 2025 increased by $3.56 billion over December 31, 2024, primarily reflecting the impacts of (i) catastrophe losses in 2025, (ii) higher volumes of insured exposures and (iii) loss cost trends for the current accident year, partially offset by (iv) claim payments made during 2025 and (v) net favorable prior year reserve development. Gross claims and claim adjustment expense reserves as of December 31, 2024 increased by $2.47 billion over December 31, 2023, primarily reflecting the impacts of (i) catastrophe losses in 2024, (ii) higher volumes of insured exposures and (iii) loss cost trends for the current accident year, partially offset by (iv) claim payments made during 2024 and (v) net favorable prior year reserve development.
Reinsurance recoverables on unpaid losses as of December 31, 2025 increased by $128 million over December 31, 2024, primarily reflecting the impact of catastrophe losses, partially offset by a decrease in structured settlements and recoverables from mandatory pools and associations. Reinsurance recoverables on unpaid losses as of December 31, 2024 decreased by $148 million over December 31, 2023, primarily reflecting a decrease in structured settlements and recoverables from mandatory pools and associations, partially offset by the impact of catastrophe losses.
Included in the claims and claim adjustment expense reserves are reserves for long-term disability and annuity claim payments, primarily arising from workers’ compensation insurance and workers’ compensation excess insurance policies, that are discounted to the present value of the estimated future payments. The discount rates used were a range of 3.5% to 5.0% as of both December 31, 2025 and 2024. Total reserves net of the discount were $2.61 billion and $2.65 billion, and the related amount of discount was $1.03 billion and $1.07 billion, as of December 31, 2025 and 2024, respectively. Accretion of the discount is reported as part of “claims and claim adjustment expenses” in the consolidated statement of income and was $43 million, $44 million and $45 million for the years ended December 31, 2025, 2024 and 2023.
Prior Year Reserve Development
The following disclosures regarding reserve development are on a “net of reinsurance” basis.
2025
In 2025, estimated claims and claim adjustment expenses incurred included $939 million of net favorable development for claims arising in prior years, including $1.04 billion of net favorable prior year reserve development and $43 million of accretion of discount that impacted the Company’s results of operations.
Business Insurance. Net favorable prior year reserve development in 2025 totaled $233 million, primarily driven by better than expected loss experience in the workers’ compensation product line for multiple accident years, partially offset by an addition to reserves related to run-off operations, including an addition to asbestos reserves of $277 million.
Bond & Specialty Insurance. Net favorable prior year reserve development in 2025 totaled $221 million, primarily driven by better than expected loss experience in the fidelity and surety product line for recent accident years.
Personal Insurance. Net favorable prior year reserve development in 2025 totaled $582 million, primarily driven by better than expected loss experience in both the automobile and homeowners and other product lines for recent accident years.
2024
In 2024, estimated claims and claim adjustment expenses incurred included $548 million of net favorable development for claims arising in prior years, including $709 million of net favorable prior year reserve development and $44 million of accretion of discount that impacted the Company’s results of operations.
Business Insurance.  Net favorable prior year reserve development in 2024 totaled $90 million, primarily driven by (i) better than expected loss experience in the workers’ compensation product line for multiple accident years, partially offset by (ii) higher than expected loss experience in the general liability product line (excluding asbestos) for recent accident years, (iii) an addition to asbestos reserves of $242 million and (iv) additions to other reserves related to run-off operations.
Bond & Specialty Insurance.  Net favorable prior year reserve development in 2024 totaled $129 million, primarily driven by better than expected loss experience in the fidelity and surety product line for multiple accident years.
Personal Insurance.  Net favorable prior year reserve development in 2024 totaled $490 million, primarily driven by better than expected loss experience in the homeowners and other and automobile product lines for recent accident years.
2023
In 2023, estimated claims and claim adjustment expenses incurred included $38 million of net favorable development for claims arising in prior years, including $143 million of net favorable prior year reserve development and $45 million of accretion of discount that impacted the Company’s results of operations.
Business Insurance. Net unfavorable prior year reserve development in 2023 totaled $289 million, primarily driven by (i) higher than expected loss experience in the general liability product line (excluding asbestos) for multiple accident years, including additions to reserves attributable to childhood sexual molestation and environmental claims in the Company’s run-off operations, (ii) an addition to asbestos reserves of $284 million and (iii) higher than expected loss experience in the commercial automobile product line for recent accident years, partially offset by (iv) better than expected loss experience in the workers’ compensation product line for multiple accident years.
Bond & Specialty Insurance.  Net favorable prior year reserve development in 2023 totaled $285 million, primarily driven by better than expected loss experience in the fidelity and surety product line and in the general liability product line for management liability coverages for recent accident years.
Personal Insurance.  Net favorable prior year reserve development in 2023 totaled $147 million, primarily driven by better than expected loss experience in the homeowners and other product line for recent accident years.
Claims Development
The following is a summary of claims and claim adjustment expense reserves, including certain components, for the Company’s major product lines by reporting segment as of December 31, 2025.
(as of December 31, 2025, in millions)Net Undiscounted
Claims and Claim
Adjustment Expense
Reserves
Discount
(Net of
Reinsurance)
Subtotal:
Net Claims and Claim Adjustment
Expense Reserves
Reinsurance
Recoverables on
Unpaid Losses (4)
Claims and Claim
Adjustment
Expense
Reserves
Business Insurance
General liability$12,063 $(121)$11,942 $1,496 $13,438 
Commercial property1,299 — 1,299 296 1,595 
Commercial multi-peril6,275 — 6,275 317 6,592 
Commercial automobile5,474 — 5,474 324 5,798 
Workers’ compensation (1)
15,560 (870)14,690 531 15,221 
Bond & Specialty Insurance
General liability2,967 — 2,967 364 3,331 
Fidelity and surety740 — 740 12 752 
Personal Insurance
Automobile4,258 — 4,258 306 4,564 
Homeowners (excluding Other)2,638 — 2,638 13 2,651 
International - Canada847 — 847 13 860 
Subtotal — claims and allocated claim adjustment expenses for the products presented in the development tables below
52,121 (991)51,130 3,672 54,802 
Other insurance contracts (2)
5,561 (5)5,556 1,763 7,319 
Unallocated loss adjustment expense reserves
3,061 — 3,061 18 3,079 
Structured settlements (3)
— — — 2,428 2,428 
Other99 — 99 (84)15 
Total property-casualty60,842 (996)59,846 7,797 67,643 
Accident and health— — — 
Less amounts classified as held for sale1,627 — 1,627 282 1,909 
Total$59,215 $(996)$58,219 $7,518 $65,737 
___________________________________________
(1)Net discount amount includes discount of $31 million on reinsurance recoverables for long-term disability and annuity claim payments.
(2)Primarily includes residual market, international (other than operations in Canada within the Personal Insurance segment) and runoff assumed reinsurance business.
(3)Includes structured settlements in cases where the Company did not receive a release from the claimant.
(4)Total reinsurance recoverables (on paid and unpaid losses) as of December 31, 2025 were $7.89 billion.
The claim development tables that follow present, by accident year, incurred and cumulative paid claims and allocated claim adjustment expense on a historical basis. This claim development information is presented on an undiscounted, net of reinsurance basis for ten years, or the number of years for which claims incurred typically remain outstanding if less than ten years. The claim development tables also provide the historical average annual percentage payout of incurred claims by age, net of reinsurance, as supplementary information (identified as unaudited in the tables below). The historical average annual percentage payout for incurred claims is subject to variability due to the impact of both large claim activity and subrogation recoveries, among other items.
Business Insurance
General Liability
(dollars in millions)
For the Years Ended December 31,
2016201720182019202020212022202320242025
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Unaudited
Accident YearIBNR Reserves Dec 31, 2025Cumulative Number of Reported Claims
2016$1,075 $1,058 $1,087 $1,187 $1,204 $1,179 $1,185 $1,183 $1,173 $1,185 $85 21,090 
20171,133 1,143 1,196 1,234 1,226 1,243 1,288 1,306 1,313 98 19,983 
20181,253 1,312 1,344 1,395 1,477 1,530 1,571 1,604 122 20,194 
20191,447 1,486 1,498 1,567 1,706 1,698 1,752 181 19,972 
20201,467 1,493 1,470 1,577 1,568 1,570 226 23,456 
20211,591 1,589 1,628 1,711 1,711 383 16,269 
20221,696 1,736 1,916 2,014 620 19,494 
20231,998 2,060 2,129 1,080 19,166 
20242,340 2,315 1,782 17,488 
20252,604 2,396 13,197 
Total$18,197 
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident YearUnaudited
2016$35 $191 $421 $649 $758 $858 $951 $991 $1,031 $1,072 
201740 180 378 552 724 914 1,029 1,111 1,172 
201842 202 441 709 939 1,146 1,270 1,367 
201951 233 482 816 1,074 1,276 1,416 Liability for Claims
202061 244 458 770 1,031 1,179 And Allocated Claim
202167 231 493 826 1,100 Adjustment Expenses,
202281 302 668 1,042 Net of Reinsurance
202354 280 597 
202455 242 2016 -Before
202528 20252016
Total$9,215 $8,982 $3,081 
Total net liability$12,063 
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
Unaudited
Years12345678910
2.9 %10.6 %15.7 %18.0 %14.0 %11.4 %8.1 %5.2 %4.0 %3.5 %
Commercial Property
(dollars in millions)
For the Years Ended December 31,
20212022202320242025
Incurred Claims and Allocated Claims Adjustment Expenses, Net of Reinsurance
Unaudited
Accident YearIBNR Reserves December 31, 2025Cumulative Number of Reported Claims
2021$1,236 $1,190 $1,190 $1,201 $1,207 $15 25,814 
20221,309 1,369 1,372 1,343 (3)28,976 
20231,268 1,244 1,219 16 29,443 
20241,474 1,434 28 28,903 
20251,417 266 22,297 
Total$6,620 
Cumulative Paid Claims and Allocated Claim
Adjustment Expenses, Net of Reinsurance
Unaudited
Liability for Claims
Accident YearAnd Allocated Claim
2021$645 $1,068 $1,141 $1,169 $1,176 Adjustment Expenses,
2022624 1,113 1,247 1,272 Net of Reinsurance
2023614 1,049 1,125 
2024702 1,193 2021 -Before
2025664 20252021
Total$5,430 $1,190 $109 
Total net liability$1,299 
Average Annual Percentage Payout of Incurred
Claims by Age, Net of Reinsurance
 Unaudited
Years12345
 49.2 %35.3 %7.4 %2.1 %0.5 %
Commercial Multi-Peril
(dollars in millions)
For the Years Ended December 31,
2016201720182019202020212022202320242025
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Unaudited
Accident YearIBNR Reserves December 31, 2025Cumulative Number of Reported Claims
2016$1,662 $1,623 $1,598 $1,590 $1,601 $1,587 $1,579 $1,578 $1,590 $1,602 $24 69,716 
20171,872 1,928 1,956 1,919 1,935 1,943 1,930 1,928 1,929 37 72,872 
20181,976 2,114 2,092 2,112 2,121 2,127 2,125 2,136 46 80,732 
20192,017 2,087 2,089 2,103 2,103 2,110 2,102 49 77,552 
20202,142 2,141 2,126 2,111 2,061 2,041 144 70,943 
20212,164 2,097 2,097 2,107 2,084 157 59,084 
20222,502 2,533 2,569 2,569 280 55,514 
20232,781 2,811 2,773 474 55,151 
20242,946 2,909 875 50,466 
20252,996 1,420 37,006 
Total$23,141 
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident YearUnaudited
2016$585 $950 $1,133 $1,278 $1,373 $1,437 $1,477 $1,510 $1,547 $1,559 
2017716 1,199 1,388 1,531 1,674 1,763 1,815 1,843 1,865 
2018792 1,302 1,500 1,669 1,815 1,917 1,986 2,021 
2019707 1,187 1,423 1,628 1,801 1,916 1,973 Liability for Claims
2020791 1,180 1,373 1,547 1,687 1,791 And Allocated Claim
2021744 1,206 1,437 1,616 1,764 Adjustment Expenses,
2022817 1,476 1,752 1,965 Net of Reinsurance
2023935 1,603 1,894 
2024906 1,539 2016 -Before
2025897 20252016
Total$17,268 $5,873 $402 
Total net liability$6,275 
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
Unaudited
Years12345678910
34.5 %23.0 %10.4 %8.5 %7.1 %4.8 %2.8 %1.7 %1.7 %0.7 %
Commercial Automobile
(dollars in millions)
For the Years Ended December 31,
20212022202320242025
Incurred Claims and Allocated Claims Adjustment
Expenses, Net of Reinsurance
Unaudited
Accident YearIBNR Reserves December 31, 2025Cumulative Number of Reported Claims
2021$1,741 $1,757 $1,786 $1,800 $1,789 $92 149,271 
20221,939 2,040 2,050 2,059 209 160,802 
20232,245 2,222 2,272 424 168,367 
20242,544 2,452 925 168,679 
20252,754 1,735 152,342 
Total$11,326 
Cumulative Paid Claims and Allocated Claim
Adjustment Expenses, Net of Reinsurance
Unaudited
Liability for Claims
Accident YearAnd Allocated Claim
2021$453 $800 $1,135 $1,405 $1,591 Adjustment Expenses,
2022540 966 1,324 1,607 Net of Reinsurance
2023589 1,006 1,394 
2024604 1,021 2021 -Before
2025572 20252021
Total$6,185 $5,141 $333 
Total net liability$5,474 
Average Annual Percentage Payout of Incurred
Claims by Age, Net of Reinsurance
Unaudited
Years12345
24.6 %18.9 %17.7 %14.4 %10.4 %
Workers’ Compensation
(dollars in millions)
For the Years Ended December 31,
2016201720182019202020212022202320242025
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Unaudited
Accident YearIBNR Reserves December 31, 2025Cumulative Number of Reported Claims
2016$2,768 $2,690 $2,569 $2,473 $2,372 $2,300 $2,235 $2,151 $2,111 $2,092 $216 132,524 
20172,779 2,681 2,584 2,483 2,439 2,342 2,243 2,190 2,167 290 130,310 
20182,744 2,687 2,599 2,503 2,416 2,318 2,245 2,194 313 132,689 
20192,680 2,714 2,699 2,632 2,521 2,424 2,355 369 129,611 
20202,559 2,530 2,433 2,271 2,152 2,025 362 102,671 
20212,356 2,349 2,294 2,237 2,166 419 96,412 
20222,293 2,294 2,226 2,148 476 103,197 
20232,373 2,365 2,371 579 98,269 
20242,352 2,344 809 95,182 
20252,356 1,379 86,579 
Total$22,218 
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident YearUnaudited
2016$421 $873 $1,118 $1,272 $1,367 $1,433 $1,486 $1,522 $1,553 $1,579 
2017433 890 1,154 1,314 1,418 1,490 1,544 1,585 1,612 
2018440 919 1,169 1,330 1,440 1,516 1,578 1,616 
2019466 951 1,229 1,402 1,518 1,593 1,639 Liability for Claims
2020389 794 1,017 1,164 1,273 1,342 And Allocated Claim
2021427 848 1,076 1,234 1,341 Adjustment Expenses,
2022388 830 1,081 1,242 Net of Reinsurance
2023444 925 1,188 
2024443 934 2016 -Before
2025430 20252016
Total$12,923 $9,295 $6,265 
Total net liability$15,560 
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
Unaudited
Years12345678910
19.3 %20.7 %11.4 %7.4 %4.9 %3.3 %2.5 %1.8 %1.4 %1.2 %
Bond & Specialty Insurance
General Liability
(dollars in millions)
For the Years Ended December 31,
2016201720182019202020212022202320242025
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Unaudited
Accident YearIBNR Reserves December 31, 2025Cumulative Number of Reported Claims
2016$512 $511 $504 $520 $514 $510 $511 $509 $512 $513 $13 4,421 
2017534 517 526 493 524 554 565 582 574 37 4,626 
2018530 548 585 595 605 612 636 624 19 4,895 
2019588 653 665 670 662 654 646 25 5,517 
2020772 753 741 698 684 673 70 5,528 
2021812 756 683 659 654 86 5,769 
2022803 763 727 689 180 5,206 
2023862 888 884 277 6,060 
20241,001 1,073 487 6,499 
20251,078 735 5,165 
Total$7,408 
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident YearUnaudited
2016$30 $141 $233 $313 $378 $446 $463 $472 $479 $480 
201738 155 262 340 404 450 488 513 530 
201849 182 290 383 458 504 559 567 
201951 189 323 410 513 554 582 Liability for Claims
202052 210 333 447 525 564 And Allocated Claim
202178 210 316 401 461 Adjustment Expenses,
202269 212 335 405 Net of Reinsurance
202390 274 435 
2024115 369 2016 -Before
2025116 20252016
Total$4,509 $2,899 $68 
Total net liability$2,967 
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
Unaudited
Years12345678910
8.9 %21.5 %18.1 %14.0 %12.1 %8.2 %5.8 %2.5 %2.1 %0.3 %
Fidelity and Surety
  
(dollars in millions)
For the Years Ended December 31,  
20212022202320242025IBNR Reserves December 31, 2025Cumulative Number of Reported Claims
Incurred Claims and Allocated Claims Adjustment
Expenses, Net of Reinsurance
Accident YearUnaudited 
2021$284 $172 $93 $87 $76 $18 612 
2022 310 261 187 148 21 757 
2023  353 374 372 83 986 
2024   363 266 164 1,049 
2025    356 320 793 
    Total$1,218   
Cumulative Paid Claims and Allocated Claim
Adjustment Expenses, Net of Reinsurance
Accident YearUnauditedLiability for Claims
And Allocated Claim
2021$25 $50 $57 $58 $57 Adjustment Expenses,
202236 82 99 118 Net of Reinsurance
202396 202 262 
202439 95 2021 -Before
202531 20252021
Total$563 $655 $85 
Total net liability$740 
Average Annual Percentage Payout of Incurred
Claims by Age, Net of Reinsurance
 Unaudited
Years12345
 21.3 %28.5 %12.1 %7.2 %(0.8)%
Personal Insurance
Automobile
(dollars in millions)
 For the Years Ended December 31,  
 20212022202320242025IBNR Reserves December 31, 2025Cumulative Number of Reported Claims
 Incurred Claims and Allocated Claims Adjustment
Expenses, Net of Reinsurance
Accident YearUnaudited 
2021$3,716 $3,770 $3,751 $3,724 $3,703 $29 1,001,126 
2022 4,755 4,784 4,729 4,686 80 1,132,092 
2023  5,206 5,133 5,032 232 1,112,458 
2024   5,179 4,988 586 1,033,917 
2025    4,770 1,487 851,578 
    Total$23,179   
Cumulative Paid Claims and Allocated Claim
Adjustment Expenses, Net of Reinsurance
Accident YearUnauditedLiability for Claims
And Allocated Claim
2021$2,062 $2,981 $3,350 $3,541 $3,628 Adjustment Expenses,
20222,683 3,855 4,278 4,485 Net of Reinsurance
20232,888 4,068 4,531 
20242,838 3,904 2021 -Before
20252,557 20252021
Total$19,105 $4,074 $184 
Total net liability$4,258 
Average Annual Percentage Payout of Incurred
Claims by Age, Net of Reinsurance
 Unaudited
Years12345
 56.2 %23.7 %9.4 %4.8 %2.4 %
Homeowners (excluding Other)
(dollars in millions)
 For the Years Ended December 31,  
 20212022202320242025IBNR Reserves December 31, 2025Cumulative Number of Reported Claims
 Incurred Claims and Allocated Claims Adjustment
Expenses, Net of Reinsurance
Accident YearUnaudited 
2021$3,463 $3,486 $3,444 $3,423 $3,397 $(3)234,160 
2022 4,277 4,184 4,146 4,145 24 236,736 
2023  5,171 5,018 4,979 70 271,119 
2024   5,021 4,915 219 239,165 
2025    5,120 1,157 153,096 
    Total$22,556   
Cumulative Paid Claims and Allocated Claim
Adjustment Expenses, Net of Reinsurance
Accident YearUnauditedLiability for Claims
And Allocated Claim
2021$2,334 $3,235 $3,344 $3,372 $3,380 Adjustment Expenses,
20222,537 3,828 4,018 4,084 Net of Reinsurance
20233,369 4,608 4,814 
20243,402 4,454 2021 -Before
20253,224 20252021
Total$19,956 $2,600 $38 
Total net liability$2,638 
Average Annual Percentage Payout of Incurred
Claims by Age, Net of Reinsurance
 Unaudited
Years12345
 66.0 %26.0 %4.0 %1.2 %0.3 %
International - Canada
(dollars in millions)
 For the Years Ended December 31,IBNR Reserves December 31, 2025Cumulative
 2016201720182019202020212022202320242025Number of
AccidentIncurred Claims and Allocated Claim Adjustment Expenses, Net of ReinsuranceReported
YearUnaudited Claims
2016$341 $386 $387 $396 $396 $395 $396 $397 $398 $399 $45,503 
2017 327 360 381 381 381 384 386 380 380 (3)46,520 
2018  415 436 438 442 445 448 445 442 (4)50,331 
2019   420 415 435 438 439 444 438 47,923 
2020    328 315 302 296 294 292 30,038 
2021     329 317 310 307 300 15 28,063 
2022      365 373 377 370 31 33,035 
2023       430 455 439 55 32,890 
2024        485 487 96 33,448 
2025         421 131 28,662 
         Total$3,968   
AccidentCumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
YearUnaudited
2016$200 $268 $292 $325 $347 $364 $376 $381 $388 $391 
2017172 243 280 303 328 348 361 369 374 
2018207 288 321 358 388 405 418 425 
2019204 273 307 344 373 398 410 Liability for Claims
2020136 183 206 225 245 255 And Allocated Claim
2021121 178 206 226 248 Adjustment Expenses,
2022159 231 260 286 Net of Reinsurance
2023193 275 310 
2024197 278 2016 -Before
2025173 20252016
Total$3,150 $818 $29 
Total net liability$847 
 Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
 Unaudited
Years12345678910
 44.4 %17.7 %8.0 %7.2 %6.7 %4.5 %3.1 %1.7 %1.4 %0.8 %
The incurred and paid amounts have been translated from the local currency to U.S. dollars using the December 31, 2025 spot rate for all years presented in the table above in order to isolate changes in foreign exchange rates from loss development.
Methodology for Estimating Incurred But Not Reported (IBNR) Reserves
Claims and claim adjustment expense reserves represent management’s estimate of the ultimate liability for unpaid losses and loss adjustment expenses for claims that have been reported and claims that have been incurred but not yet reported (IBNR) as of the balance sheet date. Claims and claim adjustment expense reserves do not represent an exact calculation of the liability, but instead represent management estimates, primarily utilizing actuarial expertise and projection methods that develop estimates for the ultimate cost of claims and claim adjustment expenses. Because the establishment of claims and claim adjustment expense reserves is an inherently uncertain process involving estimates and judgment, currently estimated claims and claim adjustment expense reserves may change. The Company reflects changes to the reserves in the results of operations in the period the estimates are changed.
Cumulative amounts paid and case reserves held as of the balance sheet date are subtracted from the estimate of the ultimate cost of claims and claim adjustment expenses to derive incurred but not reported (IBNR) reserves. Accordingly, IBNR reserves include the cost of unreported claims, development on known claims and re-opened claims. This approach to estimating IBNR reserves has been in place for many years, with no material changes in methodology in the past year.
Detailed claim data is typically insufficient to produce a reliable indication of the initial estimate for ultimate claims and claim adjustment expenses for an accident year. As a result, the initial estimate for an accident year is generally based on an exposure-based method using either the loss ratio projection or the expected loss method. The loss ratio projection method, which is typically used for guaranteed-cost business, develops an initial estimate of ultimate claims and claim adjustment expenses for an accident year by multiplying earned premium for the accident year by a projected loss ratio. The projected loss ratio is determined by analyzing prior period experience, and adjusting for loss cost trends, rate level differences, mix of business changes and other known or observed factors influencing the accident year relative to prior accident years. The expected loss method, which is typically used for loss sensitive business, develops an initial estimate of ultimate claims and claim adjustment expenses for an accident year by analyzing exposures by account.
For prior accident years, the following estimation and analysis methods are principally used by the Company’s actuaries to estimate the ultimate cost of claims and claim adjustment expenses. These estimation and analysis methods are typically referred to as conventional actuarial methods.
The paid loss development method assumes that the future change (positive or negative) in cumulative paid losses for a given cohort of claims will occur in a stable, predictable pattern from year-to-year, consistent with the pattern observed in past cohorts.
The case incurred development method is the same as the paid loss development method but is based on cumulative case-incurred losses rather than paid losses.
The Bornhuetter-Ferguson method uses an initial estimate of ultimate losses for a given product line reserve component, typically expressed as a ratio to earned premium. The method assumes that the ratio of additional claim activity to earned premium for that component is relatively stable and predictable over time and that actual claim activity to date is not a credible predictor of further activity for that component. The method is used most often for more recent accident years where claim data is sparse and/or volatile, with a transition to other methods as the underlying claim data becomes more voluminous and therefore more credible.
The average value analysis combined with the reported claim development method assumes that average claim values are stable and predictable over time for a particular cohort of claims. It is typically limited to analysis at more granular levels, such as coverage or hazard/peril, where a more homogeneous subset of claims produce a more stable and fairly predictable average value. The reported claim development method is the same as the paid loss development method but uses changes in cumulative claim counts to produce estimates of ultimate claim counts rather than ultimate dollars. The resulting estimate of ultimate claim counts by cohort is multiplied by an average value per claim from an average value analysis to obtain estimated ultimate claims and claim adjustment expenses.
While these are the principal methods utilized, the Company’s actuaries have available to them the full range of actuarial methods developed by the casualty actuarial profession. The Company’s actuaries are also regularly monitoring developments within the profession for advances in existing techniques or the creation of new techniques that might improve current and future estimates. Most actuarial methods assume that past patterns demonstrated in the data will repeat themselves in the future. 
For certain reserve components where this assumption may not hold, such as asbestos reserves, conventional actuarial methods are not utilized by the Company.
Methodology for Determining Cumulative Number of Reported Claims
A claim file is created when the Company is notified of an actual demand for payment, notified of an event that may lead to a demand for payment or when it is determined that a demand for payment could possibly lead to a future demand for payment on another coverage on the same policy or on another policy. Claim files are generally created for a policy at the claimant by coverage level, depending on the particular facts and circumstances of the underlying event.
For Business Insurance and for Personal Insurance, claim file information is summarized such that the Company generally recognizes one count for each policy claim event by internal regulatory line of business, regardless of the number of claimants or coverages involved. The claims counts are then accumulated and reported by product line. While the methodology is generally consistent within each segment for the product lines displayed, there are some minor differences between and within segments. For Bond & Specialty Insurance, the Company generally recognizes one count per coverage per policy claim event and one count per bond per surety claim event.
For purposes of the claims development tables above, claims reported for direct business are counted even if they eventually close with no loss payment, except in the case of (i) deductible business, where the claim is not counted until the case incurred claim estimate is above the deductible and (ii) International-Canada reported claim counts where claims closed with no loss payment are not counted.  Note that claims with zero claim dollars may still generate some level of claim adjustment expenses.  Claim counts for assumed business are included only to the extent such counts are available. The Company generally does not receive claim count information for which the underlying claim activity is handled by others, including pools and associations.  The Company does not generate claim counts for ceded business. The methods used to summarize claim counts have not changed significantly over the time periods reported in the tables above.
The Company cautions against using the summarized claim count information provided in this disclosure in attempting to project ultimate loss payouts by product line. The Company generally finds claim count data to be useful only on a more granular basis than the aggregated basis disclosed in the claim development tables above, as the risks, average values and other dynamics of the claim process can vary materially by the cause of loss and coverage within product line. For example, in Personal Automobile, the introduction of roadside assistance coverage resulted in a significant increase in claim counts with a low average claim cost. For this reason the Company varies its approach to, and in many cases the level of aggregation for, counting claims for internal analysis purposes depending on the particular granular analysis performed.
Asbestos Reserves
As of December 31, 2025 and 2024, the Company’s claims and claim adjustment expense reserves included $1.36 billion and $1.34 billion, respectively, for asbestos-related claims, net of reinsurance.
It is difficult to estimate the reserves for asbestos-related claims due to the vagaries of court coverage decisions, plaintiffs’ expanded theories of liability, the risks inherent in complex litigation and other uncertainties, including, without limitation, those which are set forth below.
Because each policyholder presents different liability and coverage issues, the Company generally conducts an in-depth asbestos claim review on an annual basis, including a review of domestic policyholders with open claims and litigation cases for potential product and “non-product” liability. Policyholders are identified for this review based upon, among other factors: a combination of past payments and current case reserves in excess of a specified threshold (currently $100,000), perceived level of exposure, number of reported claims, products/completed operations and potential “non-product” exposures, size of policyholder and geographic distribution of products or services sold by the policyholder.
Among the factors the Company may consider in the course of this review are: available insurance coverage, including the role of any umbrella or excess insurance the Company has issued to the policyholder; limits and deductibles; an analysis of the policyholder’s potential liability, including as a result of the bankruptcy of other defendants; the jurisdictions involved, including any trends, judicial rulings or legislative actions in those jurisdictions; past and anticipated future claim activity and loss development on pending claims; past settlement values of similar claims; allocated claim adjustment expense; the potential role of other insurance; the role, if any, of non-asbestos claims or potential non-asbestos claims in any resolution process; and
applicable coverage defenses or determinations, if any, including the determination as to whether or not an asbestos claim is a products/completed operation claim subject to an aggregate limit and the available coverage, if any, for that claim.
The Company also reviews its asbestos reserves quarterly. These reviews include, as appropriate, an analysis of exposure and claim payment patterns by policyholder, as well as recent settlements, policyholder bankruptcies, judicial rulings and legislative actions. The Company also analyzes developing payment patterns among policyholders and the assumed reinsurance component of reserves, as well as projected reinsurance billings and recoveries. In addition, the Company reviews its historical gross and net loss and expense paid experience, year-by-year, to assess any emerging trends, fluctuations, or characteristics suggested by the aggregate paid activity. Conventional actuarial methods are not utilized to establish asbestos reserves, and the Company’s evaluations have not resulted in a reliable method to determine a meaningful average asbestos defense or indemnity payment.
During the third quarter of 2025, the Company completed its annual in-depth asbestos claim review. While the latest available government data continue to reflect a declining trend in deaths caused by mesothelioma, the number of policyholders with open asbestos claims was relatively flat compared to 2024. Net asbestos paid claims and claim adjustment expenses in 2025, 2024 and 2023 were $261 million, $282 million and $212 million, respectively. Payments on behalf of these policyholders continue to be influenced by the factors described above, including an increase in severity for certain policyholders and a high level of litigation activity in a limited number of jurisdictions where individuals alleging serious asbestos-related injury, primarily mesothelioma, continue to target defendants who were not traditionally sued and/or primary targets of asbestos litigation. The completion of the analyses described above and the annual review in the third quarters of 2025, 2024 and 2023 resulted in $277 million, $242 million and $284 million increases, respectively, to the Company’s net asbestos reserves. In each year, the reserve increases were primarily driven by increases in the Company’s estimate of projected settlement and defense costs related to a broad number of policyholders. The increase in the estimate of projected settlement and defense costs primarily resulted from payment trends that continue to be higher than previously anticipated due to the continued high level of mesothelioma claim filings and the impact of the current litigation environment surrounding those claims discussed above. The 2023 charge also included an additional increase to strengthen the Company’s carried reserve position relative to the range of reasonable estimates.
Over the past decade, the property and casualty insurance industry, including the Company, has experienced net unfavorable prior year reserve development with regard to asbestos reserves, but the Company believes that over that period there has been a reduction in the volatility associated with the Company’s overall asbestos exposure as the overall asbestos environment has evolved from one dominated by exposure to significant litigation risks, particularly coverage disputes relating to policyholders in bankruptcy who were asserting that their claims were not subject to the aggregate limits contained in their policies, to an environment primarily driven by a frequency of litigation related to individuals with mesothelioma. The Company’s overall view of the current underlying asbestos environment is essentially unchanged from recent periods, and there remains a high degree of uncertainty with respect to future exposure to asbestos claims.
As a result of the processes and procedures discussed above, management believes that the reserves carried for asbestos claims are appropriately established based upon known facts, current law and management’s judgment. However, the uncertainties surrounding the final resolution of these claims continue, and it is difficult to determine the ultimate exposure for asbestos claims and related litigation. As a result, these reserves are subject to revision as new information becomes available and as claims develop. Changes in the legal, regulatory and legislative environment may impact the future resolution of asbestos claims and result in adverse loss reserve development. The emergence of a greater number of asbestos claims beyond that which is anticipated may result in adverse loss reserve development. Changes in applicable legislation and future court and regulatory decisions and interpretations, including the outcome of legal challenges to legislative and/or judicial reforms establishing medical criteria for the pursuit of asbestos claims, could affect the settlement of asbestos claims. It is also difficult to predict the ultimate outcome of complex coverage disputes until settlement negotiations near completion and significant legal questions are resolved or, failing settlement, until the dispute is adjudicated. This is particularly the case with policyholders in bankruptcy where negotiations often involve a large number of claimants and other parties and require court approval to be effective. As part of its continuing analysis of asbestos reserves, the Company continues to study the implications of these and other developments.
Because of the uncertainties set forth above, additional liabilities may arise for amounts in excess of the Company’s current reserves. In addition, the Company’s estimate of claims and claim adjustment expenses may change. These additional liabilities
or increases in estimates, or a range of either, cannot now be reasonably estimated and could result in income statement charges that could be material to the Company’s operating results in future periods.
Catastrophe Exposure
The Company has geographic exposure to catastrophe losses, which include hurricanes, tornadoes and other windstorms, earthquakes, hail, wildfires, severe winter weather, floods, tsunamis, volcanic eruptions, solar flares and other naturally-occurring events. Catastrophes can also result from terrorist attacks and other intentionally destructive acts including those involving cyber events, nuclear, biological, chemical and radiological events, civil unrest, explosions and destruction of infrastructure. The incidence and severity of catastrophes are inherently unpredictable. The extent of losses from a catastrophe is a function of both the total amount of insured exposure in the area affected by the event and the severity of the event. Most catastrophes are restricted to small geographic areas; however, hurricanes, earthquakes, wildfires and cyber attacks may produce significant damage in larger areas, especially those that are heavily populated. The Company generally seeks to mitigate its exposure to catastrophes through individual risk selection and the purchase of catastrophe reinsurance.
There are also risks which impact the estimation of ultimate costs for catastrophes. For example, the estimation of reserves related to hurricanes can be affected by the inability of the Company and its insureds to access portions of the impacted areas, the complexity of factors contributing to the losses, the legal and regulatory uncertainties and the nature of the information available to establish the reserves. Complex factors include, but are not limited to: determining whether damage was caused by flooding versus wind; evaluating general liability and pollution exposures; estimating additional living expenses; the impact of demand surge; the potential impact of changing climate conditions, including higher frequency and severity of weather-related events; infrastructure disruption; fraud; the effect of mold damage and business income interruption costs; and reinsurance collectibility. The timing of a catastrophe’s occurrence, such as at or near the end of a reporting period, can also affect the information available to the Company in estimating reserves for that reporting period. The estimates related to catastrophes are adjusted as actual claims emerge.
v3.25.4
Debt
12 Months Ended
Dec. 31, 2025
Debt Disclosure [Abstract]  
Debt DEBT
Debt outstanding was as follows:
(as of December 31, in millions)20252024
Short-term:
Commercial paper$100 $100 
7.75% Senior notes due April 15, 20261
200  
Total short-term debt300 100 
Long-term:
7.75% Senior notes due April 15, 20261
 200 
7.625% Junior subordinated debentures due December 15, 2027 (effective interest rate 6.147%)
125 125 
6.375% Senior notes due March 15, 20331
500 500 
5.05% Senior notes due July 24, 20351
500 — 
6.75% Senior notes due June 20, 20361
400 400 
6.25% Senior notes due June 15, 20371
800 800 
5.35% Senior notes due November 1, 20401
750 750 
4.60% Senior notes due August 1, 20431
500 500 
4.30% Senior notes due August 25, 20451
400 400 
8.50% Junior subordinated debentures due December 15, 2045 (effective interest rate 6.362%)
56 56 
3.75% Senior notes due May 15, 20461
500 500 
8.312% Junior subordinated debentures due July 1, 2046 (effective interest rate 6.362%)
73 73 
4.00% Senior notes due May 30, 20471
700 700 
4.05% Senior notes due March 7, 20481
500 500 
4.10% Senior notes due March 4, 20491
500 500 
2.55% Senior notes due April 27, 20501
500 500 
3.05% Senior notes due June 8, 20511
750 750 
5.45% Senior notes due May 25, 20531
750 750 
5.70% Senior notes due July 24, 20551
750 — 
Total long-term debt9,054 8,004 
Total debt principal9,354 8,104 
Unamortized fair value adjustment31 34 
Unamortized debt issuance costs(118)(105)
Total debt$9,267 $8,033 
________________________________________________________
(1)The effective interest rate to maturity does not differ materially from the issued rate.
2025 Debt Issuance. On July 24, 2025, the Company issued a total of $1.25 billion of debt in two tranches:
$500 million aggregate principal amount of 5.05% senior notes that will mature on July 24, 2035 (the “2035 notes”), and
$750 million aggregate principal amount of 5.70% senior notes that will mature on July 24, 2055 (the “2055 notes” and together with the 2035 notes, the “senior notes”). 

The net proceeds of the issuance, after deducting the underwriting discount and expenses payable by the Company, totaled approximately $1.23 billion. Interest on the senior notes is payable semi-annually in arrears on January 24 and July 24.

The 2035 notes may be redeemed prior to April 24, 2035, in whole or in part, at the Company’s option, at any time or from time to time, at a redemption price equal to the greater of (a) 100% of the principal amount of any 2035 notes to be redeemed or
(b) the sum of the present values of the remaining scheduled payments of principal and interest to but excluding April 24, 2035 on any 2035 notes to be redeemed (exclusive of interest accrued to the date of redemption) discounted to the date of redemption on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the then current Treasury Rate (as defined in the 2035 notes), plus 15 basis points. On or after April 24, 2035, the 2035 notes may be redeemed, in whole or in part, at the Company’s option, at any time or from time to time, at a redemption price equal to 100% of the principal amount of any 2035 notes to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date.

The 2055 notes may be redeemed prior to January 24, 2055, in whole or in part, at the Company’s option, at any time or from time to time, at a redemption price equal to the greater of (a) 100% of the principal amount of any 2055 notes to be redeemed or (b) the sum of the present values of the remaining scheduled payments of principal and interest to but excluding January 24, 2055 on any 2055 notes to be redeemed (exclusive of interest accrued to the date of redemption) discounted to the date of redemption on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the then current Treasury Rate (as defined in the 2055 notes), plus 15 basis points. On or after January 24, 2055, the 2055 notes may be redeemed, in whole or in part, at the Company’s option, at any time or from time to time, at a redemption price equal to 100% of the principal amount of any 2055 notes to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date.

2023 Debt Issuance. On May 25, 2023, the Company issued $750 million aggregate principal amount of 5.45% senior notes that will mature on May 25, 2053. The net proceeds of the issuance, after the deduction of the underwriting discount and expenses payable by the Company, totaled approximately $738 million. Interest on the senior notes is payable semi-annually in arrears on May 25 and November 25. Prior to November 25, 2052, the senior notes may be redeemed, in whole or in part, at the Company’s option, at any time or from time to time, at a redemption price equal to the greater of (a) 100% of the principal amount of any senior notes to be redeemed or (b) the sum of the present values of the remaining scheduled payments of principal and interest to but excluding November 25, 2052 on any senior notes to be redeemed (exclusive of interest accrued to the date of redemption) discounted to the date of redemption on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the then current Treasury rate (as defined in the senior notes), plus 25 basis points. On or after November 25, 2052, the senior notes may be redeemed, in whole or in part, at the Company’s option, at any time or from time to time, at a redemption price equal to 100% of the principal amount of any senior notes to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date.
Description of Debt
Commercial Paper—The Company maintains an $800 million commercial paper program. Interest rates on commercial paper issued in 2025 ranged from 3.87% to 4.35%, and in 2024 ranged from 4.59% to 5.36%.
Senior Notes—The Company’s various senior debt issues are unsecured obligations that rank equally with one another. Interest payments are made semi-annually. The Company generally may redeem some or all of the notes prior to maturity in accordance with terms unique to each debt instrument.
The Travelers Companies, Inc. fully and unconditionally guarantees the payment of all principal, premiums, if any, and interest on certain debt obligations of its subsidiaries Travelers Property Casualty Corp. (TPC) and Travelers Insurance Group Holdings Inc. (TIGHI). The guarantees pertain to the $200 million 7.75% notes due 2026 and the $500 million 6.375% notes due 2033.
Junior Subordinated Debentures—The Company’s three junior subordinated debenture instruments are all similar in nature to each other. Three separate business trusts issued preferred securities to investors and used the proceeds to purchase the Company’s junior subordinated debentures. Interest on each of the instruments is paid semi-annually.
The Company’s consolidated balance sheet includes the debt instruments acquired in a business acquisition, which were recorded at fair value as of the acquisition date. The resulting fair value adjustment is being amortized over the remaining life of the respective debt instruments using the effective-interest method. The amortization of the fair value adjustment reduced interest expense by $3 million and $1 million for the years ended December 31, 2025 and 2024, respectively.
The following table presents merger-related unamortized fair value adjustments.
Unamortized Fair Value
Purchase Adjustment at December 31,
(in millions)Issue RateMaturity Date20252024
Junior subordinated debentures7.625 %Dec. 2027$3 $
8.500 %Dec. 204513 13 
8.312 %Jul. 204615 16 
Total$31 $34 
Maturities—Other than commercial paper, the amount of debt obligations that become due in each of the next five years is as follows: 2026, $200 million; 2027, $125 million; 2028, $0; 2029, $0; and 2030, $0.
Credit Agreement
On June 15, 2022, the Company entered into to a five-year, $1.0 billion revolving credit agreement with a syndicate of financial institutions. Pursuant to the credit agreement covenants, the Company must maintain a minimum consolidated net worth, defined as shareholders’ equity determined in accordance with GAAP (excluding accumulated other comprehensive income (loss)) plus (a) trust preferred securities (not to exceed 15% of total capital) and (b) mandatorily convertible securities (combined with trust preferred securities, not to exceed 25% of total capital), less goodwill and other intangible assets. That threshold is fixed during the term of the credit agreement at an amount equal to $13.9 billion (57.5% of the Company’s net worth as of March 31, 2022). In addition, the credit agreement contains other customary restrictive covenants as well as certain customary events of default, including with respect to a change in control, which would occur upon the acquisition of 35% or more of the Company’s voting stock or certain changes in the composition of the Company’s Board of Directors. As of December 31, 2025, the Company was in compliance with these covenants. Generally, the cost of borrowing under this agreement will range from the Secured Overnight Financing Rate (SOFR) plus 85 basis points (including a credit spread adjustment) to SOFR plus 147.5 basis points (including a credit spread adjustment), depending on the Company’s credit ratings. As of December 31, 2025, that cost would have been SOFR plus 110 basis points (including a credit spread adjustment), had there been any amounts outstanding under the credit agreement. 
The Company has uncollateralized letters of credit with an aggregate limit of $299 million as of December 31, 2025, including $260 million that provides a portion of the capital needed to support the Company’s obligations at Lloyd’s.
Shelf Registration
The Company has a shelf registration statement filed with the Securities and Exchange Commission that expires on June 4, 2028 which permits it to issue securities from time to time at prices and on other terms to be determined at the time of offering.
v3.25.4
Shareholders' Equity and Dividend Availability
12 Months Ended
Dec. 31, 2025
Stockholders' Equity Note [Abstract]  
Shareholders' Equity and Dividend Availability SHAREHOLDERS’ EQUITY AND DIVIDEND AVAILABILITY
Authorized Shares
The number of authorized shares of the Company is 1.755 billion, consisting of five million shares of preferred stock, 1.745 billion shares of voting common stock and five million undesignated shares. The Company’s Articles of Incorporation authorize the Board of Directors to establish, from the undesignated shares, one or more classes and series of shares, and to further designate the type of shares and terms thereof.
Preferred Stock
The Company’s Articles of Incorporation provide authority to issue up to five million shares of preferred stock.
Common Stock
The Company is governed by the Minnesota Business Corporation Act. All authorized shares of voting common stock have no par value. Shares of common stock reacquired are considered authorized and unissued shares.
Treasury Stock
The Company’s Board of Directors has approved common share repurchase authorizations under which repurchases may be made from time to time in the open market, pursuant to pre-set trading plans meeting the requirements of Rule 10b5-1 under the Securities Exchange Act of 1934, in private transactions or otherwise. The authorizations do not have a stated expiration date.  The timing and actual number of shares to be repurchased in the future will depend on a variety of factors, including the Company’s financial position, earnings, share price, catastrophe losses, maintaining appropriate capital levels for business operations, changes in the levels of written premiums, funding of its qualified pension plan, regulatory capital requirements of the operating insurance subsidiaries, legal requirements, regulatory constraints, other investment opportunities (including mergers and acquisitions and related financings), market conditions, changes in tax laws and other factors. During 2025, the Company repurchased 10.9 million shares under its share repurchase authorizations, for a total of $3.0 billion. The average cost per share repurchased was $277.17. Included in the cost of the treasury stock acquired pursuant to common share repurchases is the 1% federal excise tax imposed on common share repurchase activity, net of common share issuances, as part of the Inflation Reduction Act of 2022. As of December 31, 2025, the Company had $2.02 billion of capacity remaining under its share repurchase authorizations. On January 21, 2026, the Board of Directors approved a share repurchase authorization that added an additional $5.0 billion of repurchase capacity to the $2.02 billion of capacity remaining at that date, which was previously approved by the Board of Directors on April 19, 2023.
The Company’s Amended and Restated 2014 Stock Incentive Plan and the Amended and Restated 2023 Stock Incentive Plan provide settlement alternatives to employees in which the Company retains shares to cover payroll withholding taxes in connection with the vesting of restricted stock unit awards and performance share awards, and shares used by employees to cover the exercise price, as well as the related payroll withholding taxes, for stock options that were exercised. During the years ended December 31, 2025 and 2024, the Company acquired $171 million and $146 million, respectively, of its common stock under these plans.
Common shares acquired are reported as treasury stock in the consolidated balance sheet.
Dividend Availability
The Company’s U.S. insurance subsidiaries, domiciled principally in the State of Connecticut, are subject to various regulatory restrictions that limit the maximum amount of dividends available to be paid by each insurance subsidiary to its respective parent company without prior approval of insurance regulatory authorities. A maximum of $5.92 billion is available by the end of 2026 for such dividends to ultimately be paid to the holding company, TRV, without prior approval of the Connecticut Insurance Department. The Company may choose to accelerate the timing within 2026 and/or increase the amount of dividends from its insurance subsidiaries in 2026, which could result in certain dividends being subject to approval by the Connecticut Insurance Department prior to payment.
Each of the Company’s U.S. insurance subsidiaries had policyholders’ surplus as of December 31, 2025 significantly above the level at which any regulatory action would occur. Regulators in the jurisdictions in which the Company’s foreign insurance subsidiaries are located require insurance companies to maintain certain levels of capital depending on, among other things, the type and amount of insurance policies written. Each of the Company’s foreign insurance subsidiaries also had capital significantly above their respective regulatory requirements as of December 31, 2025.
In addition to the regulatory restrictions on the amount of dividends that can be paid by the Company’s U.S. insurance subsidiaries, the maximum amount of dividends that may be paid to the Company’s shareholders is also limited, to a lesser degree, by certain covenants contained in its line of credit agreement with a syndicate of financial institutions that require the Company to maintain a minimum consolidated net worth as described in note 9.
TRV is not dependent on dividends or other forms of repatriation from its foreign operations to support its liquidity needs. The undistributed earnings of the Company’s foreign operations are intended to be permanently reinvested in those operations, and such earnings were not material to the Company’s financial position or liquidity as of December 31, 2025.
The U.S. insurance subsidiaries paid dividends of $3.25 billion, $2.00 billion and $1.17 billion during 2025, 2024 and 2023, respectively.
For the years ended December 31, 2025, 2024 and 2023, TRV declared cash dividends per common share of $4.35, $4.15 and $3.93, respectively, and paid cash dividends of $979 million, $951 million and $908 million, respectively.
Statutory Net Income and Statutory Capital and Surplus
Statutory net income of the Company’s domestic and international insurance subsidiaries was $6.76 billion, $4.74 billion and $2.85 billion for the years ended December 31, 2025, 2024 and 2023, respectively. Statutory capital and surplus of the Company’s domestic and international insurance subsidiaries was $31.06 billion and $27.72 billion as of December 31, 2025 and 2024, respectively.
v3.25.4
Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Income (Loss)
12 Months Ended
Dec. 31, 2025
Other Comprehensive Income And Accumulated Other Comprehensive Income Disclosure [Abstract]  
Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Income (Loss) OTHER COMPREHENSIVE INCOME (LOSS) AND ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
The following table presents the changes in the Company’s accumulated other comprehensive income (loss) (AOCI) for the years ended December 31, 2025, 2024 and 2023.
Changes in Net Unrealized Gains (Losses) on
Investment Securities
(in millions)Having No Credit
Losses Recognized in
the Consolidated
Statement of Income
Having Credit Losses
Recognized in the
Consolidated
Statement of Income
Net Benefit Plan Assets and
Obligations
Recognized in
Shareholders’ Equity
Net Unrealized
Foreign Currency
Translation
Total Accumulated
Other
Comprehensive
Income (Loss)
Balance, December 31, 2022$(5,077)$179 $(542)$(1,005)$(6,445)
Other comprehensive income (loss) (OCI) before reclassifications, net of tax
1,692 94 121 1,908 
Amounts reclassified from AOCI, net of tax
76 — (10)— 66 
Net OCI, current period1,768 84 121 1,974 
Balance, December 31, 2023(3,309)180 (458)(884)(4,471)
OCI before reclassifications, net of tax
(619)238 (219)(596)
Amounts reclassified from AOCI, net of tax
104 — (4)— 100 
Net OCI, current period(515)234 (219)(496)
Balance, December 31, 2024(3,824)184 (224)(1,103)(4,967)
OCI before reclassifications, net of tax
2,105 2 74 231 2,412 
Amounts reclassified from AOCI, net of tax
55    55 
Net OCI, current period2,160 2 74 231 2,467 
Balance, December 31, 2025$(1,664)$186 $(150)$(872)$(2,500)
The following table presents the pre-tax components of the Company’s other comprehensive income (loss) and the related income tax expense (benefit).
(for the year ended December 31, in millions)202520242023
Changes in net unrealized gains (losses) on investment securities:
Having no credit losses recognized in the consolidated statement of income
$2,744 $(644)$2,249 
Income tax expense (benefit)584 (129)481 
Net of taxes2,160 (515)1,768 
Having credit losses recognized in the consolidated statement of income3 
Income tax expense1 — 
Net of taxes2 
Net changes in benefit plan assets and obligations94 296 106 
Income tax expense20 62 22 
Net of taxes74 234 84 
Net changes in unrealized foreign currency translation246 (232)138 
Income tax expense (benefit)15 (13)17 
Net of taxes231 (219)121 
Total other comprehensive income (loss)3,087 (575)2,494 
Income tax expense (benefit)620 (79)520 
Total other comprehensive income (loss), net of taxes$2,467 $(496)$1,974 
The following table presents the pre-tax and related income tax (expense) benefit components of the amounts reclassified from the Company’s AOCI to the Company’s consolidated statement of income.
(for the year ended December 31, in millions)202520242023
Reclassification adjustments related to unrealized gains (losses) on investment securities:
Having no credit losses recognized in the consolidated statement of income (1)
$69 $131 $96 
Income tax benefit (2)
14 27 20 
Net of taxes55 104 76 
Having credit losses recognized in the consolidated statement of income (1)
 — — 
Income tax benefit (2)
 — — 
Net of taxes — — 
Reclassification adjustment related to benefit plan assets and obligations:
Claims and claim adjustment expenses (benefit) (3)
 (2)(5)
General and administrative expenses (benefit) (3)
 (3)(8)
Total
 (5)(13)
Income tax (expense) benefit (2)
 (1)(3)
Net of taxes (4)(10)
Reclassification adjustment related to foreign currency translation (1)
 — — 
Income tax benefit (2)
 — — 
Net of taxes — — 
Total reclassifications69 126 83 
Total income tax benefit14 26 17 
Total reclassifications, net of taxes$55 $100 $66 
___________________________________________
(1)(Increases) decreases net realized investment losses on the consolidated statement of income.
(2)(Increases) decreases income tax expense on the consolidated statement of income.
(3)Increases (decreases) expenses on the consolidated statement of income.
v3.25.4
Earnings per Share
12 Months Ended
Dec. 31, 2025
Earnings Per Share Reconciliation [Abstract]  
Earnings Per Share EARNINGS PER SHARE
Basic earnings per share was computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding during the period. The computation of diluted earnings per share reflected the effect of potentially dilutive securities and excludes the effect of any anti-dilutive shares.
Potentially dilutive securities include restricted stock units, deferred stock units, stock options and performance share awards related to the employee share-based incentive compensation programs. The restricted stock units and deferred stock units contain non-forfeitable rights to dividends and are included as participating securities in the calculation of basic and diluted earnings per share using the two-class method. Stock option and performance share awards are included in the calculation of diluted earnings per share using the treasury stock method.
The following is a reconciliation of the income and share data used in the basic and diluted earnings per share computations.
(for the year ended December 31, in millions, except per share amounts)202520242023
Basic and Diluted
Net income, as reported$6,288 $4,999 $2,991 
Participating share-based awards — allocated income(46)(38)(22)
Net income available to common shareholders — basic and diluted$6,242 $4,961 $2,969 
Common Shares
Basic
Weighted average shares outstanding224.2 228.0 229.7 
Diluted
Weighted average shares outstanding224.2 228.0 229.7 
Weighted average effects of dilutive securities:
Stock options and performance shares3.4 3.1 2.5 
Total227.6 231.1 232.2 
Net income Per Common Share
Basic$27.83 $21.76 $12.93 
Diluted$27.43 $21.47 $12.79 
v3.25.4
Income Taxes
12 Months Ended
Dec. 31, 2025
Income Tax Disclosure [Abstract]  
Income Taxes INCOME TAXES
Enactment of the One Big Beautiful Bill Act of 2025
On July 4, 2025, the U.S. enacted a budget reconciliation package known as the One Big Beautiful Bill Act of 2025 (OBBBA), which includes both tax and non-tax provisions. The changes resulting from the tax provisions in OBBBA did not have a material impact on the Company’s income tax expense and results of operations, financial position or liquidity.
Components of Income Tax Expense
The following table presents the components of the Company’s U.S. federal and state, as well as foreign income tax expense (benefit) included in the amounts reported in the Company’s consolidated financial statements.
(for the year ended December 31, in millions)202520242023
Composition of income tax expense included in the consolidated statement of income
Current expense:
Federal$1,171 $1,252 $477 
Foreign89 70 20 
State17 14 
Total current tax expense1,277 1,336 504 
Deferred expense (benefit):
Federal210 (152)(163)
Foreign21 (3)39 
Total deferred tax expense (benefit)231 (155)(124)
Total income tax expense included in the consolidated
 statement of income
1,508 1,181 380 
Composition of income tax expense (benefit) included
 in shareholders’ equity
Expense (benefit) relating to changes in the unrealized gain (loss) on investments, unrealized loss on foreign exchange and other items in other comprehensive income (loss)620 (79)520 
Total income tax expense included in the
 consolidated financial statements
$2,128 $1,102 $900 
Tax Rate Reconciliation
The following is a reconciliation of income tax expense at the U.S. federal statutory income tax rate to the income tax expense reported in the Company’s consolidated statement of income.
2025
(for the year ended December 31, in millions)AmountPercentage
Income before income taxes
Federal$7,372 
Foreign424 
Total income before income taxes7,796 
Effective tax rate
Federal statutory tax rate21 %
Federal statutory income tax rate1,637 21.0 %
Nontaxable or nondeductible items
Nontaxable investment income(129)(1.7)%
Other(22)(0.3)%
Other adjustments, net22 0.3 %
Effective tax rate$1,508 19.3 %
(for the year ended December 31, in millions)20242023
Income before income taxes
U.S.$5,947 $3,122 
Foreign233 249 
Total income before income taxes6,180 3,371 
Effective tax rate
Statutory tax rate21 %21 %
Expected federal income tax expense1,298 708 
Tax effect of:
Nontaxable investment income(122)(132)
Audit reserve(205)
Other, net(4)
Total income tax expense$1,181 $380 
Effective tax rate19 %11 %
The Company recognized a one-time tax benefit of $211 million in the first quarter of 2023 due to the expiration of the statute of limitations with respect to a tax item impacted by the repeal of Internal Revenue Code Section 847, which related to the discounting of property-casualty loss reserves. This amount is included in the Audit reserve line in the table above.
Income Taxes Paid
(for the year ended December 31, in millions)2025
Income taxes paid:
Federal$1,159 
Foreign:
United Kingdom65 
Other33 
Total foreign98 
State17 
Total income taxes paid$1,274 
The Company paid income taxes of $1.31 billion and $201 million during the years ended December 31, 2024 and 2023, respectively. The current income tax payable of $309 million and $301 million as of December 31, 2025 and 2024, respectively, was included in other liabilities in the consolidated balance sheet.
Deferred Tax Asset
The net deferred tax asset comprises the tax effects of temporary differences related to the following assets and liabilities.
(as of December 31, in millions)20252024
Deferred tax assets
Investments$61 $659 
Claims and claim adjustment expense reserves780 708 
Unearned premium reserves854 833 
Internally developed software 303 
Other247 261 
Total gross deferred tax assets1,942 2,764 
Less: valuation allowance47 38 
Adjusted gross deferred tax assets1,895 2,726 
Deferred tax liabilities
Deferred acquisition costs691 673 
Intangibles90 87 
Depreciation114 118 
Internally developed software8 — 
Other63 86 
Total gross deferred tax liabilities966 964 
Less amounts classified as held for sale42 — 
Net deferred tax asset$887 $1,762 
If the Company determines that any of its deferred tax assets will not result in future tax benefits, a valuation allowance must be established for the portion of these assets that are not expected to be realized. The net change in the valuation allowance for deferred tax assets was an increase of $9 million in 2025, primarily driven by an increase in the Company’s Canadian subsidiaries. Based upon a review of the Company’s anticipated future taxable income, and also including all other available evidence, both positive and negative, the Company’s management concluded that it is more likely than not that the net deferred tax assets will be realized.
U.S. income taxes have not been recognized on any undistributed earnings that are intended to be permanently reinvested. Any potential U.S. income tax on these amounts is immaterial.
Net Operating Losses
For tax return purposes, as of December 31, 2025, the Company had net operating loss (NOL) carryforwards in the United States, Canada, the Republic of Ireland and the United Kingdom. The amount and timing of realizing the benefits of NOL carryforwards depend on future taxable income and limitations imposed by tax laws. Substantially all the United States and United Kingdom NOL carryforwards have been recognized in the consolidated financial statements and included in net deferred tax assets. None of the Republic of Ireland and Canada NOL carryforwards have been recognized in the consolidated financial statements and included in net deferred tax assets. The NOL amounts by jurisdiction and year of expiration are as follows:
(in millions)AmountYear of 
expiration
United States$21 2035-2036
Canada$125 2035-2045
Republic of Ireland$115 None
United Kingdom$104 None
Uncertain Tax Positions
The following is a reconciliation of the beginning and ending amount of unrecognized tax benefits for the years ended December 31, 2025 and 2024.
(in millions)20252024
Balance as of January 1$17 $14 
Additions for tax positions of prior years 
Reductions for tax positions of prior years(1)(1)
Additions based on tax positions related to current year3 
Expiration of statute of limitations(3)(1)
Balance as of December 31$16 $17 
Included in the balances as of December 31, 2025 and 2024 were $15 million and $17 million, respectively, of unrecognized tax benefits that, if recognized, would affect the annual effective tax rate. Also included in the balances as of those dates were $1 million and $0 million, respectively, of tax positions for which the ultimate deductibility is certain, but for which there is uncertainty about the timing of deductibility. The timing of such deductibility could affect the annual effective tax rate depending on the year of deduction and tax rate at the time.
The Company recognizes accrued interest and penalties, if any, related to unrecognized tax benefits in income taxes. During the years ended December 31, 2025, 2024 and 2023, the Company recognized approximately $1 million, $5 million and $3 million in interest, respectively. The Company had approximately $12 million and $11 million accrued for the payment of interest as of December 31, 2025 and 2024, respectively.
The IRS has completed examination of the Company’s U.S. income tax returns for all years through 2018. The statute of limitations for federal income tax purposes has closed for all tax years prior to 2022.
v3.25.4
Share-Based Incentive Compensation
12 Months Ended
Dec. 31, 2025
Share-Based Payment Arrangement [Abstract]  
Share-based Incentive Compensation SHARE-BASED INCENTIVE COMPENSATION
The Company has a share-based incentive compensation plan, The Travelers Companies, Inc. Amended and Restated 2023 Stock Incentive Plan (the 2023 Incentive Plan), the purposes of which are to align the interests of the Company’s non-employee directors, executive officers and other employees with those of the Company’s shareholders and to attract and retain personnel by providing incentives in the form of share-based awards. The 2023 Incentive Plan permits grants of nonqualified stock options, incentive stock options, stock appreciation rights, restricted stock, restricted stock units, deferred stock, deferred stock units, performance awards and other share-based or share-denominated awards with respect to the Company’s common stock. The Company has a policy of issuing new shares to settle the exercise of stock option awards under the various settlement alternatives allowed under the 2023 Incentive Plan, and the vesting of other equity awards.
In connection with the adoption of the 2023 Incentive Plan, The Travelers Companies, Inc. Amended and Restated 2014 Stock Incentive Plan, as amended (the 2014 Incentive Plan) was terminated, joining several other legacy share-based incentive compensation plans that had been terminated in prior years (together, the legacy plans). Outstanding grants were not affected by the termination of the legacy plans. The 2023 Incentive Plan is currently the only plan pursuant to which future stock-based awards may be granted.
The number of shares of the Company’s common stock initially authorized for grant under the 2023 Incentive Plan was 5,789,184 shares. In May 2025, the Company’s shareholders authorized an additional 2.1 million shares of the Company’s common stock for grant under the 2023 Incentive Plan. The following are not counted towards the combined 7,889,184 shares available and will be available for future grants under the 2023 Incentive Plan: (i) shares of common stock subject to awards that expire unexercised, that are forfeited, terminated or canceled, that are settled in cash or other forms of property, or otherwise do not result in the issuance of shares of common stock, in whole or in part; (ii) shares that are used to pay the exercise price of stock options and shares used to pay withholding taxes on awards generally; and (iii) shares purchased by the Company on the open market using cash option exercise proceeds; provided, however, that the increase in the number of shares of common stock available for grant pursuant to such market purchases shall not be greater than the number that could be repurchased at fair market value on the date of exercise of the stock option giving rise to such option proceeds. In addition, the 7,889,184 shares authorized by shareholders for issuance under the 2023 Incentive Plan will be increased by any shares subject to awards under the 2014 Incentive Plan that were outstanding as of May 24, 2023 and subsequently expire, are forfeited, canceled, settled in cash or otherwise terminate without the issuance of shares.
The Company also has a compensation program for non-employee directors (the Director Compensation Program). Under the Director Compensation Program, non-employee directors’ compensation consists of an annual retainer, a deferred stock award, committee chair fees and a lead director fee. Each non-employee director may choose to receive all or a portion of his or her annual retainer, committee chair fee and lead director fee, as applicable, in the form of cash or deferred stock units which vest upon grant. The annual deferred stock awards vest in full one day prior to the date of the Company’s annual meeting of shareholders occurring in the year following the year of the grant date, subject to continued service. The annual deferred stock awards, including dividend equivalents, accumulate until distribution either in a lump sum or, if the director so elects, in annual installments, in each case beginning at least six months following termination of service as a director. The deferred stock units issued under the Director Compensation Program are awarded under the 2023 Incentive Plan.
Stock Option Awards
Stock option awards granted to eligible officers and key employees have a ten-year term. All stock options are granted with an exercise price equal to the closing price of the Company’s common stock on the date of grant. The stock options granted generally vest upon meeting certain years of service criteria. Except as the Compensation Committee of the Board of Directors may allow in the future, stock options cannot be sold or transferred by the participant. Stock options outstanding under the 2023 Incentive Plan and the 2014 Incentive Plan generally vest three years after grant date (cliff vest).
The fair value of each option award is estimated on the date of grant by application of a variation of the Black-Scholes option pricing model using the assumptions noted in the following table. The expected term of newly granted stock options is based on historical exercise behavior and forfeitures by employees adjusted for certain other factors expected to differ from historical trends, if any. The expected volatility assumption is based on the historical volatility of the Company’s common stock for the same period as the estimated option term generally using the volatility of the week prior to the stock option grant. The expected dividend is based upon the Company’s current quarter dividend annualized and assumed to be constant over the expected option term. The risk-free interest rate for each option is the interpolated U.S. Treasury rates with a term comparable to the expected option term for the same week used for measuring volatility. The following table provides information about options granted:
(for the year ended December 31,)202520242023
Assumptions used in estimating fair value of options on grant date
Expected term of stock options6 years6 years6 years
Expected volatility of Company’s stock26.22 %25.80 %
25.63% - 25.99%
Weighted average volatility26.22 %25.80 %25.63 %
Expected annual dividend per share$4.20$4.00$3.72
Risk-free rate4.39 %3.99 %
3.63% - 3.89%
Additional information
Weighted average grant-date fair value of
 options granted (per share)
$68.92 $56.45 $47.77 
Total intrinsic value of options exercised
 during the year (in millions)
$186 $205 $58 
A summary of stock option activity under the 2023 Incentive Plan and the legacy plans as of and for the year ended December 31, 2025 is as follows:
Stock Option ActivityNumberWeighted
Average
Exercise
Price
Weighted
Average
Contractual
Life
Remaining
Aggregate
Intrinsic
Value
($ in millions)
Outstanding, beginning of year7,005,747 $153.89 
Original grants648,808 244.06 
Exercised(1,405,737)136.09 
Forfeited or expired(54,162)212.45 
Outstanding, end of year6,194,656 $166.86 5.5 years$763 
Vested at end of year (1)
5,557,170 $161.26 5.2 years$716 
Exercisable at end of year4,142,265 $143.68 4.3 years$606 
___________________________________________
(1)Represents awards for which the requisite service has been rendered, including those that are retirement eligible.
Subsequent to the balance sheet date, on February 3, 2026, the Company granted 572,936 stock option awards under the 2023 Incentive Plan with an exercise price of $288.23 per share. The fair value attributable to the stock option awards on the date of grant was $81.68 per share.
Restricted Stock Units, Deferred Stock Units and Performance Share Award Programs
The Company issues restricted stock unit awards to eligible officers and key employees under the Equity Awards program pursuant to the 2023 Incentive Plan. A restricted stock unit represents the right to receive a share of common stock. These restricted stock unit awards are granted at market price, generally vest three years from the date of grant, do not have voting rights and the underlying shares of common stock are not issued until the vesting criteria is satisfied.  In addition, members of the Company’s Board of Directors can be issued deferred stock units from (i) an annual award; (ii) deferred compensation (in lieu of cash retainer, committee chair fees and lead director fees); and (iii) dividend equivalents earned on outstanding deferred compensation. The fair value of restricted stock units and deferred stock units was measured at the market price of the Company’s common stock at date of grant.
The Company also has a Performance Share Awards program pursuant to the 2023 Incentive Plan. Under the program, the Company may issue performance share awards to certain employees of the Company who hold positions of Vice President (or its equivalent) or above. The performance share awards provide the recipient the right to earn shares of the Company’s common stock based upon the Company’s attainment of certain performance goals and the recipient meeting certain years of service criteria. The performance goals for outstanding performance share awards are based on the Company’s adjusted return on
equity over a three-year performance period and for the 2025 grant year include the attainment of certain market-based goals over the performance period.
Performance shares granted in 2023 and 2024 may vest in shares of the Company’s stock contingent upon the Company attaining the relevant performance period return on equity (ROE) minimum threshold and the recipient meeting certain years of service criteria, generally three years for full vesting. If the performance period return on equity is below the minimum threshold, none of the performance shares will vest. If performance meets or exceeds the minimum performance threshold, a range of performance shares will vest (50% to 200% for awards granted), depending on the actual return on equity attained. The value of these performance shares was measured at the market price of the Company’s common stock at the date of grant.
Beginning with the 2025 performance share award, the award incorporates a modifier to the performance share payout based on relative total shareholder return. This modifier adjusts final payouts higher or lower by a maximum of 20% percentage points based on the Company’s total shareholder return relative to the total shareholder return for companies included in the S&P 500 Financials Index (Peer Companies), in each case over the applicable performance period. The range of performance shares that may vest under the plan is 0% to an overall maximum payout of 200%. The grant date fair value of the 2025 award, which includes this market-based modifier, was determined using the risk neutral Monte Carlo simulation model and using the assumptions noted in the following table. The expected term of newly granted performance shares is based on the remaining performance period as of the valuation date. The expected volatility assumption for the Company and the Peer Companies is based on each entity’s historical stock price volatility over the last 2.9 years on the date of valuation. The expected dividend yield assumes dividends distributed during the period are reinvested. The risk-free interest rate for each performance share is the interpolated U.S. Treasury rates commensurate with the expected term of the performance share on the date of grant. The following table provides a summary of the assumptions used in estimating the fair value of the 2025 performance awards on grant date:
Assumptions used in estimating fair value of performance awards on grant date2025
Expected term2.9 years
Expected volatility28.16 %
Expected dividend yield0.00 %
Risk-free interest rate4.20 %
Under the terms of the 2023 Incentive Plan, holders of deferred stock units and performance shares may receive dividend equivalents.
The total fair value of shares that vested during the years ended December 31, 2025, 2024 and 2023 was $267 million, $253 million and $164 million, respectively.
A summary of restricted stock units, deferred stock units and performance share activity under the 2023 Incentive Plan and the legacy plans as of and for the year ended December 31, 2025 is as follows:
Restricted and Deferred Stock
Units
Performance Shares
Restricted Stock and Performance Share ActivityNumberWeighted
Average
Grant-Date
Fair Value
NumberWeighted Average
Grant-Date Fair
Value
Nonvested, beginning of year1,100,989 $192.83 1,155,648 $200.66 
Granted493,676 247.31 252,956 (1)251.19 
Vested(451,967)(2)196.26 (582,010)(3)189.02 
Forfeited(81,137)210.93 (18,078)216.75 
Performance-based adjustment— — 234,724 (4)229.56 
Nonvested, end of year1,061,561 $215.33 1,043,240 $225.63 
___________________________________________
(1)Represents the number of performance shares at target ROE at date of grant. The weighted average grant date fair value assumes attaining 100% of the performance shares granted.
(2)Represents the number of awards for which the requisite service has been rendered.
(3)Represents the number of performance shares attributable to the performance goals attained over the completed performance period (three years) and for which service conditions have been met.
(4)Represents the current year change in estimated performance shares to reflect the attainment of performance goals for the awards that were granted in each of the years 2023 through 2025. Because the 2025 award is subject to both a performance and market-based condition modifier, the estimated fair value of the award is updated from the grant date fair value to reflect the estimation of the impact of the award’s market-based modifier.
In addition to the nonvested shares presented in the above table, there are related nonvested dividend equivalent shares. The number of nonvested dividend equivalent shares related to deferred stock units was 165 at the beginning of the year and 114 at the end of the year and the number of nonvested dividend equivalent shares related to performance shares was 35,112 at the beginning of the year and 26,815 at the end of the year. The dividend equivalent shares are subject to the same vesting terms as the deferred stock units and performance shares.
Share-Based Compensation Cost Recognition
The amount of compensation cost for awards subject to a service condition is based on the number of shares expected to be issued and is recognized over the time period for which service is to be provided (requisite service period), generally the vesting period. Awards granted to retiree-eligible employees or to employees who become retiree-eligible before an award’s vesting date are considered to have met the requisite service condition if the vesting terms are accelerated upon retirement. The compensation cost for awards subject to a performance condition and, if applicable, a market-based modifier, is based upon the probable outcome of the performance condition, which on the grant date reflects an estimate of attaining 100% of the performance shares granted. The compensation cost reflects an estimated annual forfeiture rate from 1.5% to 3.5% over the requisite service period of the awards. That estimate is revised if subsequent information indicates that the actual number of instruments expected to vest is likely to differ from previous estimates. Compensation costs for awards are recognized on a straight-line basis over the requisite service period.  For awards that have graded vesting terms, the compensation cost is recognized on a straight-line basis over the requisite service period for each separate vesting portion of the award as if the award was, in substance, multiple awards. The total compensation cost for all share-based incentive compensation awards recognized in earnings for the years ended December 31, 2025, 2024 and 2023 was $256 million, $260 million and $214 million, respectively. Included in these amounts are compensation cost adjustments of $55 million, $68 million and $39 million, for the years ended December 31, 2025, 2024 and 2023, respectively, that reflected the cost associated with the updated estimate of performance shares due to attaining certain performance levels from the date of the initial grant of the performance awards. The related tax benefits recognized in earnings were $43 million, $43 million and $36 million for the years ended December 31, 2025, 2024 and 2023, respectively.
As of December 31, 2025, there was $255 million of total unrecognized compensation cost related to all nonvested share-based incentive compensation awards. This includes stock options, restricted and deferred stock units and performance shares granted under the 2023 Incentive Plan. The unrecognized compensation cost is expected to be recognized over a weighted-average period of 1.7 years. Cash received from the exercise of employee stock options under share-based compensation plans totaled $214 million, $321 million and $141 million in 2025, 2024 and 2023, respectively. The tax benefit for tax deductions from employee stock options exercised during 2025, 2024 and 2023 totaled $31 million, $39 million and $11 million, respectively.

Awards Made Subsequent to the Balance Sheet Date
On February 3, 2026, the Company granted 607,689 common stock awards in the form of restricted stock units, deferred stock units and performance share awards under the 2023 Incentive Plan to participating officers, non-employee directors and other key employees.
Included in the total common stock awards granted were 382,510 shares of restricted stock units and deferred stock units with a fair value per share attributable to the units of $288.23 and 225,179 performance shares having a fair value at grant date of $300.82.
v3.25.4
Pension Plans, Retirement Benefits and Savings Plans
12 Months Ended
Dec. 31, 2025
Retirement Benefits [Abstract]  
Pension Plans, Retirement Benefits and Savings Plans PENSION PLANS, RETIREMENT BENEFITS AND SAVINGS PLANS
The Company sponsors a qualified non-contributory defined benefit pension plan (the qualified domestic pension plan), which covers substantially all U.S. domestic employees and provides benefits under a cash balance formula, except that certain limited groups of legacy participants are covered by a prior traditional final average pay formula. In addition, the Company sponsors a nonqualified defined benefit pension plan which covers certain highly-compensated employees, pension plans for employees of its foreign subsidiaries, and a postretirement health and life insurance benefit plan for employees satisfying certain age and service requirements and for certain retirees.
Obligations and Funded Status
The following tables summarize the funded status, obligations and amounts recognized in the consolidated balance sheet for the Company’s benefit plans. The Company uses a December 31 measurement date for its pension and postretirement benefit plans.
(as of and for the year ended December 31,  in millions)Qualified Domestic
Pension Plan
Nonqualified and Foreign
Pension Plans
Total
202520242025202420252024
Change in projected benefit obligation:
Benefit obligation as of beginning of year$3,245 $3,454 $186 $184 $3,431 $3,638 
Benefits earned110 111 4 114 116 
Interest cost on benefit obligation167 163 9 176 172 
Actuarial (gain) loss127 (159)4 131 (155)
Benefits paid(234)(324)(13)(14)(247)(338)
Foreign currency exchange rate change
 — 5 (2)5 (2)
Benefit obligation as of end of year$3,415 $3,245 $195 $186 $3,610 $3,431 
Change in plan assets:
Fair value of plan assets as of beginning of year$4,234 $4,149 $100 $97 $4,334 $4,246 
Actual return on plan assets501 409 4 505 417 
Company contributions — 10 12 10 12 
Benefits paid(234)(324)(13)(14)(247)(338)
Foreign currency exchange rate change
 — 7 (3)7 (3)
Fair value of plan assets as of end
 of year
4,501 4,234 108 100 4,609 4,334 
Funded status of plan as of end
 of year
$1,086 $989 $(87)$(86)$999 $903 
Amounts recognized in the consolidated balance sheet consist of:
Accrued over-funded benefit plan assets
$1,086 $989 $38 $32 $1,124 $1,021 
Accrued under-funded benefit plan liabilities
 — (125)(118)(125)(118)
Total$1,086 $989 $(87)$(86)$999 $903 
Amounts recognized in accumulated other comprehensive loss consist of:
Net actuarial loss$268 $381 $20 $14 $288 $395 
Prior service cost (benefit) — 1 1 
Total$268 $381 $21 $15 $289 $396 
Postretirement
Benefit Plans
(as of and for the year ended December 31, in millions)20252024
Change in accumulated benefit obligation:
Benefit obligation as of beginning of year$62 $92 
Benefits earned — 
Interest cost on benefit obligation3 
Actuarial gain (28)
Benefits paid(2)(5)
Foreign currency exchange rate change1 (1)
Benefit obligation as of end of year$64 $62 
Change in plan assets:
Fair value of plan assets as of beginning of year$6 $
Actual return on plan assets1 — 
Company contributions1 
Benefits paid(2)(5)
Fair value of plan assets as of end of year6 
Funded status of plan as of end of year$(58)$(56)
Amounts recognized in the consolidated balance sheet consist of:
Accrued under-funded benefit plan liability$(58)$(56)
Amounts recognized in accumulated other comprehensive loss consist of:
Net actuarial gain$(98)$(110)
Prior service benefit(2)(4)
Total$(100)$(114)
The total accumulated benefit obligation for the Company’s defined benefit pension plans was $3.43 billion and $3.27 billion as of December 31, 2025 and 2024, respectively. The qualified domestic pension plan accounted for $3.24 billion and $3.09 billion of the total accumulated benefit obligation as of December 31, 2025 and 2024, respectively, whereas the nonqualified and foreign plans accounted for $189 million and $180 million of the total accumulated benefit obligation as of December 31, 2025 and 2024, respectively.
For pension plans with a projected benefit obligation in excess of plan assets, the aggregate projected benefit obligation was $125 million and $118 million as of December 31, 2025 and 2024, respectively, and the aggregate plan assets were $0 million as of both December 31, 2025 and 2024. For pension plans with an accumulated benefit obligation in excess of plan assets, the aggregate accumulated benefit obligation was $120 million and $112 million as of December 31, 2025 and 2024, respectively, and the aggregate plan assets were $0 million as of both December 31, 2025 and 2024. For postretirement benefit plans with an accumulated benefit obligation in excess of plan assets, the aggregate accumulated benefit obligation was $64 million and $62 million as of December 31, 2025 and 2024, respectively, and the aggregate plan assets were $6 million as of both December 31, 2025 and 2024.
The $127 million actuarial loss experienced in 2025 for the qualified domestic pension plan was largely driven by the decrease in the assumed discount rate from the prior year that was used to determine the projected benefit obligation as of December 31, 2025. The $159 million actuarial gain experienced in 2024 for the qualified domestic pension plan was largely driven by the increase in the assumed discount rate from the prior year that was used to determine the projected benefit obligation as of December 31, 2024.
The Company has discretion regarding whether to provide additional funding and when to provide such funding to its qualified domestic pension plan. In 2025, 2024 and 2023, there were no required or voluntary contributions to the qualified domestic pension plan. There is no required contribution to the qualified domestic pension plan during 2026, and the Company has not
determined whether additional funding will be made during 2026. With respect to the Company’s foreign pension plans, there are no significant required contributions in 2026.
The following table summarizes the components of net periodic benefit cost (benefit) and other amounts recognized in other comprehensive income (loss) related to the benefit plans.
Pension PlansPostretirement Benefit
Plans
(for the year ended December 31, in millions)202520242023202520242023
Net Periodic Benefit Cost (Benefit):
Service cost$114 $116 $108 $ $— $— 
Non-service cost (benefit):
Interest cost on benefit obligation176 172 176 3 
Expected return on plan assets(281)(298)(311)(1)— — 
Amortization of unrecognized:
Prior service benefit — (1)(2)(3)(3)
Net actuarial (gain) loss14 — (12)(9)(9)
Total non-service cost (benefit)(91)(119)(136)(12)(8)(7)
Net periodic benefit cost (benefit)23 (3)(28)(12)(8)(7)
Other Changes in Benefit Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss):
Prior service benefit — —  — — 
Net actuarial gain(93)(274)(114) (28)(6)
Foreign currency exchange rate change — —  — 
Amortization of prior service benefit — 2 
Amortization of net actuarial gain (loss)(14)(7)— 12 
Total other changes recognized in other comprehensive income (loss)(107)(281)(113)14 (15)
Total other changes recognized in net periodic benefit cost (benefit) and other comprehensive income (loss)$(84)$(284)$(141)$2 $(23)$(1)
The following table indicates the line items in which the respective service cost and non-service cost (benefit) are presented in the consolidated statement of income for the years ended December 31, 2025, 2024 and 2023.
 Pension PlansPostretirement Benefit
Plans
(for the year ended December 31, in millions)202520242023202520242023
Service Cost:
Net investment income$1 $$— $ $— $— 
Claims and claim adjustment expenses44 45 44  — — 
General and administrative expenses69 70 64  — — 
Total service cost114 116 108  — — 
Non-Service Cost (Benefit):
Net investment income(1)(1)(1) — — 
Claims and claim adjustment expenses(34)(45)(54)(5)(3)(3)
General and administrative expenses(56)(73)(81)(7)(5)(4)
Total non-service cost (benefit)(91)(119)(136)(12)(8)(7)
Net periodic benefit cost (benefit)$23 $(3)$(28)$(12)$(8)$(7)
Assumptions
The following table summarizes assumptions used with regard to the Company’s qualified and nonqualified domestic pension plans and the domestic postretirement benefit plans.
(as of and for the year ended December 31,)20252024
Assumptions used to determine benefit obligations
Discount rate:
Qualified domestic pension plan5.53 %5.69 %
Nonqualified domestic pension plan5.12 %5.51 %
Domestic postretirement benefit plan5.06 %5.48 %
Cash balance interest crediting rate4.01 %4.01 %
Future compensation increase rate4.00 %4.00 %
Assumptions used to determine net periodic benefit cost
Discount rate:
Qualified domestic pension plan:
Service cost5.81 %5.10 %
Interest cost5.36 %4.91 %
Nonqualified domestic pension plan:
Service cost5.58 %4.98 %
Interest cost5.25 %4.86 %
Domestic postretirement benefit plan:
Interest cost5.24 %4.84 %
Expected long-term rate of return on assets:
Qualified domestic pension plan7.00 %7.00 %
Domestic postretirement benefit plan4.00 %4.00 %
Assumed health care cost trend rates (1)
Following year(7.21)%(18.04)%
Rate to which the cost trend rate is assumed to decline (ultimate trend rate)4.50 %4.50 %
Year that the rate reaches the ultimate trend rate20352033
___________________________________________
(1)The 2026 assumed health care cost trend rate of (7.21)% reflects known negotiated medical premium rate changes and expected drug reimbursements to the Company’s baseline health care cost trend rate of 9.75%. After 2026, assumed health care cost trend rates are expected to increase in the subsequent year and then are expected to decrease in a linear pattern until the rate reaches the ultimate trend rate of 4.50% in 2035. The 2025 assumed health care cost trend rate of (18.04)% reflects known negotiated medical premium rate changes and expected drug reimbursements to the Company’s baseline health care cost trend rate of 10.00%.
The discount rate assumption used to determine the benefit obligation is based on a yield-curve approach. Under this approach, individual spot rates from the yield curve of a hypothetical portfolio of high quality fixed maturity corporate bonds (rated Aa) available at the year-end valuation date, for which the timing and amount of cash outflows correspond with the timing and amount of the estimated benefit payouts of the Company’s benefit plan, are applied to expected future benefits payments in measuring the projected benefit obligation. The discount rate assumption used to determine benefit obligations disclosed above represents the weighted average of the individual spot rates.
The discount rate assumption used to determine the net periodic benefit cost is the single weighted average discount rate derived from the yield curve used to measure the benefit obligation at the beginning of the year.
In choosing the expected long-term rate of return on plan assets, the Company selected the rate that reflected the Company’s current expectations with regard to long-term returns in the capital markets, taking into account the pension plan’s asset
allocation targets, the historical performance and current valuation of U.S. and international equities, and the level of long term interest rate and inflation expectations.
The assumptions made for the Company’s foreign pension and foreign postretirement benefit plans are not materially different from those of the Company’s qualified domestic pension plan and the domestic postretirement benefit plan.
Plan Assets
The qualified domestic pension plan assets are invested for the exclusive benefit of the plan participants and beneficiaries and are intended, over time, to satisfy the benefit obligations under the plan. Risk tolerance is established through consideration of plan liabilities, plan funded status and corporate financial position. The asset mix guidelines have been established and are reviewed quarterly. These guidelines are intended to serve as tools to facilitate the investment of plan assets to maximize long-term total return and the ongoing oversight of the plan’s investment performance. Investment risk is measured and monitored on an ongoing basis through daily and monthly investment portfolio reviews, annual liability measurements and periodic asset/liability studies.
The Company’s overall investment strategy for the qualified domestic pension plan is to achieve a mix of approximately 85% to 90% of investments for long-term growth and 10% to 15% for near-term benefit payments with a diversification of asset types, fund strategies and fund managers. The current target allocations for plan assets are 55% to 65% equity securities and 20% to 40% fixed income securities, with the remainder allocated to short-term securities. Equity securities primarily include investments in large, medium and small-cap companies primarily located in the United States. Fixed income securities include corporate bonds of companies from diversified industries, mortgage-backed securities, U.S. Treasury securities and debt securities issued by foreign governments.
Assets of the Company’s foreign pension plans are not significant.
Fair Value Measurement — Pension Plans and Other Postretirement Benefit Assets
For a discussion of the methods employed by the Company to measure the fair value of invested assets, see note 4. The following discussion of fair value measurements applies exclusively to the Company’s pension plans and other postretirement benefit assets.
Fair value estimates for equity and bond mutual funds held by the pension plans reflect prices received from an external pricing service that are based on observable market transactions. These estimates are primarily included in Level 1.
Short-term securities are carried at fair value which approximates cost plus accrued interest or amortized discount. The fair value or market value of these is periodically compared to this amortized cost and is based on significant observable inputs as determined by an external pricing service. Accordingly, the estimates of fair value for such short-term securities, other than U.S. Treasury securities and money market mutual funds, provided by an external pricing service are included in the amount disclosed in Level 2 of the hierarchy. The estimated fair value of U.S. Treasury securities and money market mutual funds is included in the amount disclosed in Level 1 as the estimates are based on unadjusted market prices.
Fair Value Hierarchy — Pension Plans
The following tables present the level within the fair value hierarchy at which the financial assets of the Company’s pension plans are measured on a recurring basis.
(as of December 31, 2025, in millions)TotalLevel 1Level 2Level 3
Invested assets:
Fixed maturities
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$594 $594 $ $ 
Obligations of U.S. states, municipalities and political subdivisions160  160  
Debt securities issued by foreign governments36  36  
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
7  7  
Corporate and all other bonds767  767  
Total fixed maturities1,564 594 970  
Mutual funds
Equity mutual funds1,265 1,259 6  
Bond mutual funds94 91 3  
Total mutual funds1,359 1,350 9  
Equity securities1,533 1,533   
Other investments 1   1 
Cash and short-term securities
U.S. Treasury securities76 76   
Other76 76   
Total cash and short-term securities152 152   
Total$4,609 $3,629 $979 $1 
(as of December 31, 2024, in millions)TotalLevel 1Level 2Level 3
Invested assets:
Fixed maturities
Obligations of U.S. states, municipalities and political subdivisions$109 $— $109 $— 
Debt securities issued by foreign governments34 — 34 — 
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
— — 
Corporate and all other bonds751 — 751 — 
Total fixed maturities902 — 902 — 
Mutual funds
Equity mutual funds1,178 1,172 — 
Bond mutual funds667 636 31 — 
Total mutual funds1,845 1,808 37 — 
Equity securities1,401 1,401 — — 
Other investments — — 
Cash and short-term securities
U.S. Treasury securities108 108 — — 
Other77 62 15 — 
Total cash and short-term securities185 170 15 — 
Total$4,334 $3,379 $954 $
Other Postretirement Benefit Plans
The Company’s overall investment strategy is to achieve a mix of approximately 35% to 65% of investments for long-term growth and 35% to 65% for near-term insurance payments with a wide diversification of asset types, fund strategies and fund managers. The current target allocations for plan assets are 25% to 75% fixed income securities, with the remainder allocated to short-term securities. Fixed income securities include corporate bonds of companies from diversified industries, mortgage-backed securities and U.S. Treasuries.
Fair Value — Other Postretirement Benefit Plans
The Company’s other postretirement benefit plans had financial assets of $6 million as of both December 31, 2025 and 2024, which are measured at fair value on a recurring basis. The assets are primarily corporate bonds, which are categorized as level 2 in the fair value hierarchy.
Estimated Future Benefit Payments
The following table presents the estimated benefits expected to be paid by the Company’s pension and postretirement benefit plans for the next ten years (reflecting estimated future employee service).
Benefits Expected to be Paid
(in millions)Pension PlansPostretirement Benefit Plans
2026$292 $5 
2027298 6 
2028303 6 
2029304 6 
2030301 6 
2031 through 2035
1,478 27 
Savings Plan
Substantially all U.S. domestic Company employees are eligible to participate in The Travelers 401(k) Savings Plan (the Savings Plan). Eligible employees can contribute to the Savings Plan, and the Company makes a matching contribution into the employee’s Savings Plan account, subject to limitations described below. In addition, when an eligible U.S. employee makes a payment toward their student loans, the Company makes a contribution of that amount into the employee’s Savings Plan account, subject to limitations described below. The total annual amount of the Company’s matching contributions, student loan repayment contributions or a combination of both is the lesser of 5% of eligible pay or $7,500, which becomes 100% vested after three years of service. All Company contributions to the Savings Plan are made in cash and invested according to the employee’s current investment elections and can be reinvested into other investment options in accordance with the terms of the Savings Plan. The Company’s non-U.S. employees and certain domestic employees participate in separate savings plans. The total expense related to all of the savings plans was $180 million, $170 million and $154 million for the years ended December 31, 2025, 2024 and 2023, respectively.
All common shares held by the Savings Plan are considered outstanding for basic and diluted EPS computations and dividends paid on all shares are charged to retained earnings.
v3.25.4
Leases
12 Months Ended
Dec. 31, 2025
Leases [Abstract]  
Leases LEASES
The Company enters into lease agreements for real estate that is primarily used for office space in the ordinary course of business. These leases are accounted for as operating leases, whereby lease expense is recognized on a straight-line basis over the term of the lease, and a right-of-use asset and lease liability is recognized as part of other assets and other liabilities, respectively, in the consolidated balance sheet.
Most leases include an option to extend or renew the lease term. The exercise of the renewal option is at the Company’s discretion. The operating lease liability includes lease payments related to options to extend or renew the lease term if the Company is reasonably certain of exercising those options. The Company, in determining the present value of lease payments, utilizes either the rate implicit in the lease, if that rate is readily determinable, or the Company’s incremental secured borrowing rate commensurate with the term of the underlying lease.
Lease expense is included in general and administrative expenses in the consolidated statement of income. Additional information regarding the Company’s real estate operating leases is as follows:
(for the year ended December 31, in millions)202520242023
Lease cost
Operating leases$64 $73 $76 
Short-term leases (1)
2 
Lease expense66 76 79 
Less: sublease income (2)
 — — 
Net lease cost$66 $76 $79 
Other information on operating leases
Cash payments to settle a lease liability reported in cash flows
$74 $79 $87 
Right-of-use assets obtained in exchange for new lease liabilities$30 $95 $37 
Weighted average discount rate4.06 %3.82 %
Weighted average remaining lease term5.4 years5.7 years
_________________________________________________________
(1) Leases with a term of twelve months or less are not recorded on the consolidated balance sheet.
(2) Sublease income consists of rent from third parties of office space and is recognized as part of other revenues in the consolidated statement of income.
The following table presents the contractual maturities of the Company’s lease liabilities.
(in millions)Real Estate Lease Liability
2026$69 
202758 
202851 
202939 
203019 
Thereafter59 
Total undiscounted lease payments295 
Less: present value adjustment50 
Operating lease liability$245 
v3.25.4
Contingencies, Commitments and Guarantees
12 Months Ended
Dec. 31, 2025
Contingencies, Commitments and Guarantees [Abstract]  
Contingencies, Commitments and Guarantees CONTINGENCIES, COMMITMENTS AND GUARANTEES
Contingencies
The major pending legal proceedings, other than ordinary routine litigation incidental to the business, to which the Company or any of its subsidiaries is a party or to which any of the Company’s properties is subject are described below.
Asbestos Claims and Litigation
In the ordinary course of its insurance business, the Company has received and continues to receive claims for insurance arising under policies issued by the Company asserting alleged injuries and damages from asbestos--related exposures that are the subject of related coverage litigation. The Company is defending asbestos-related litigation vigorously and believes that it has meritorious defenses; however, the outcomes of these disputes are uncertain.  In this regard, the Company employs dedicated specialists and comprehensive resolution strategies to manage asbestos loss exposure, including settling litigation under appropriate circumstances. Currently, it is not possible to predict legal outcomes and their impact on future loss development for claims and litigation relating to asbestos claims. Any such development could be affected by future court decisions and interpretations, as well as future changes, if any, in applicable legislation. Because of these uncertainties, additional liabilities may arise for amounts in excess of the Company’s current insurance reserves. In addition, the Company’s estimate of ultimate claims and claim adjustment expenses may change. These additional liabilities or changes in estimates, or a range of either, cannot now be reasonably estimated and could result in income statement charges that could be material to the Company’s results of operations in future periods.
Other Proceedings Not Arising Under Insurance Contracts or Reinsurance Agreements
The Company is involved in other lawsuits, including lawsuits alleging extra-contractual damages relating to insurance contracts or reinsurance agreements, that do not arise under insurance contracts or reinsurance agreements. The legal costs associated with such lawsuits are expensed in the period in which the costs are incurred. Based upon currently available information, the Company does not believe it is reasonably possible that any such lawsuit or related lawsuits would be material to the Company’s results of operations or would have a material adverse effect on the Company’s financial position or liquidity.
Other Commitments and Guarantees
Commitments
Investment Commitments — The Company has unfunded commitments to private equity limited partnerships, real estate partnerships and other investments. These commitments totaled $1.41 billion and $1.49 billion as of December 31, 2025 and 2024, respectively.
Guarantees
In the ordinary course of selling businesses to third parties, the Company has agreed to indemnify purchasers for losses arising out of breaches of representations and warranties, obligations arising from certain liabilities and any breach or failure to perform certain covenants with respect to the businesses being sold. Such indemnification provisions generally are applicable from the closing date to the expiration of the relevant statutes of limitations, although, in some cases, there may be agreed upon term limitations or no term limitations. Certain of these contingent obligations are subject to deductibles which have to be incurred by the obligee before the Company is obligated to make payments. The maximum amount of the Company’s contingent obligation for indemnifications related to the sale of businesses that are quantifiable was $352 million as of December 31, 2025.
The Company also has contingent obligations for guarantees related to certain investments, certain insurance policy obligations of former insurance subsidiaries and various other indemnifications. The Company also provides standard indemnifications that it utilizes with service providers in the normal course of business. The indemnification clauses are often standard contractual terms. The maximum amount of the Company’s obligation related to the guarantee of certain insurance policy obligations of a former insurance subsidiary was $480 million as of December 31, 2025, all of which is indemnified by a third party.
Certain of the guarantees and indemnifications described above have no stated or notional amounts or limitation to the maximum potential future payments, and, accordingly, the Company is unable to provide an estimate of the maximum potential payments for such arrangements. The Company does not expect to make any material payments related to these guarantees.
v3.25.4
Noncash Investing and Financing Activities
12 Months Ended
Dec. 31, 2025
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]  
Noncash Investing and Financing Activities NONCASH INVESTING AND FINANCING ACTIVITIES
The Company issued common stock during 2025 and 2024 in connection with its stock compensation plan which resulted in noncash financing transactions totaling $44 million and $32 million, respectively, from the net share settlement of employee stock options. In an unrelated transaction, the Company received a beneficial interest totaling $32 million in a noncash investing activity related to the restructuring of the Massachusetts Property Insurance Underwriting Association, a FAIR Plan, during 2024. There were no other material noncash financing or investing activities during the years ended December 31, 2025, 2024 and 2023.
v3.25.4
Schedule II
12 Months Ended
Dec. 31, 2025
Condensed Financial Information Disclosure [Abstract]  
Schedule II
THE TRAVELERS COMPANIES, INC.
(Parent Company Only)

CONDENSED FINANCIAL INFORMATION OF REGISTRANT
(in millions)

CONDENSED STATEMENT OF INCOME
For the year ended December 31,202520242023
Revenues
Net investment income$100 $92 $92 
Net realized investment gains41 34 37 
Total revenues141 126 129 
Expenses
Interest377 344 328 
Other31 (18)
Total expenses408 347 310 
Loss before income taxes and net income of subsidiaries(267)(221)(181)
Income tax benefit(84)(88)(58)
Loss before net income of subsidiaries(183)(133)(123)
Net income of subsidiaries6,471 5,132 3,114 
Net income$6,288 $4,999 $2,991 

The condensed financial statements should be read in conjunction with the notes to the condensed financial information of the registrant, as well as the consolidated financial statements and notes thereto.

See the Report of Independent Registered Public Accounting Firm.
SCHEDULE II

THE TRAVELERS COMPANIES, INC.
(Parent Company Only)

CONDENSED FINANCIAL INFORMATION OF REGISTRANT
(in millions)

CONDENSED STATEMENT OF COMPREHENSIVE INCOME
For the year ended December 31,202520242023
Net income$6,288 $4,999 $2,991 
Other comprehensive income (loss)—parent company:
Changes in net unrealized gains (losses) on investment securities having no credit losses recognized in the condensed statement of income8 (1)
Net changes in benefit plan assets and obligations92 294 111 
Other comprehensive income before income taxes and other comprehensive income (loss) of subsidiaries100 293 114 
Income tax expense30 61 30 
Other comprehensive income, net of taxes, before other comprehensive income (loss) of subsidiaries70 232 84 
Other comprehensive income (loss) of subsidiaries2,397 (728)1,890 
Other comprehensive income (loss)2,467 (496)1,974 
Comprehensive income$8,755 $4,503 $4,965 

The condensed financial statements should be read in conjunction with the notes to the condensed financial information of the registrant, as well as the consolidated financial statements and notes thereto.

See the Report of Independent Registered Public Accounting Firm.
SCHEDULE II

THE TRAVELERS COMPANIES, INC.
(Parent Company Only)

CONDENSED FINANCIAL INFORMATION OF REGISTRANT
(in millions)

CONDENSED BALANCE SHEET
As of December 31,20252024
Assets
Fixed maturities$243 $186 
Equity securities287 284 
Short-term securities2,352 1,748 
Investment in subsidiaries38,001 32,374 
Other assets826 774 
Total assets$41,709 $35,366 
Liabilities
Debt$8,571 $7,337 
Other liabilities237 158 
Total liabilities8,808 7,495 
Shareholders’ equity
Common stock (1,750.0 shares authorized; 217.5 and 226.6 shares issued and outstanding)
25,910 25,452 
Retained earnings54,938 49,637 
Accumulated other comprehensive loss(2,500)(4,967)
Treasury stock, at cost (575.9 and 564.3 shares)
(45,447)(42,251)
Total shareholders’ equity32,901 27,871 
Total liabilities and shareholders’ equity$41,709 $35,366 

The condensed financial statements should be read in conjunction with the notes to the condensed financial information of the registrant, as well as the consolidated financial statements and notes thereto.

See the Report of Independent Registered Public Accounting Firm.
SCHEDULE II

THE TRAVELERS COMPANIES, INC.
(Parent Company Only)

CONDENSED FINANCIAL INFORMATION OF REGISTRANT
(in millions)

CONDENSED STATEMENT OF CASH FLOWS
For the year ended December 31,202520242023
Cash flows from operating activities
Net income$6,288 $4,999 $2,991 
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in net income of subsidiaries(6,471)(5,132)(3,114)
Dividends received from consolidated subsidiaries3,266 1,964 1,125 
Other190 180 175 
Net cash provided by operating activities3,273 2,011 1,177 
Cash flows from investing activities
Net purchases of short-term securities(604)(254)(88)
Other investments, net(8)(8)(37)
Net cash used in investing activities(612)(262)(125)
Cash flows from financing activities
Treasury stock acquired—share repurchase authorizations(3,004)(1,003)(958)
Treasury stock acquired—net employee share-based compensation(127)(114)(64)
Dividends paid to shareholders(979)(951)(908)
Issuance of debt1,233 — 738 
Issuance of common stock—employee share options214 321 141 
Net cash used in financing activities(2,663)(1,747)(1,051)
Net increase (decrease) in cash and restricted cash(2)
Cash and restricted cash at beginning of year3 — 
Cash and restricted cash at end of year$1 $$
Supplemental disclosure of cash flow information
Cash received during the year for taxes$96 $122 $73 
Cash paid during the year for interest$346 $343 $322 
Supplemental disclosure of noncash financing activities
Issuance of common stock—net share settlement of employee stock options$44 $32 $— 
The condensed financial statements should be read in conjunction with the notes to the condensed financial information of the registrant, as well as the consolidated financial statements and notes thereto.

See the Report of Independent Registered Public Accounting Firm.
SCHEDULE II

THE TRAVELERS COMPANIES, INC.
(Parent Company Only)

NOTES TO THE CONDENSED FINANCIAL INFORMATION OF REGISTRANT
1.    GUARANTEES
The Travelers Companies, Inc. (TRV) fully and unconditionally guarantees the payment of all principal, premiums, if any, and interest on certain debt obligations of its subsidiaries TPC and TIGHI. The guarantees pertain to the $200 million 7.75% notes due 2026 and the $500 million 6.375% notes due 2033.
TRV also has contingent obligations for guarantees in connection with the selling of businesses to third parties; certain insurance, reinsurance and banking facility obligations of certain subsidiaries and various indemnifications including indemnifications that it utilizes with service providers in the normal course of business. The guarantees and indemnification clauses are often standard contractual terms and include indemnifications for breaches of representations and warranties and in some cases obligations arising from certain liabilities. The terms of these provisions vary in duration and nature. 
Certain of the guarantees and indemnifications described above have no stated or notional amounts or limitation to the maximum potential future payments. Accordingly, TRV is unable to provide an estimate of the maximum potential payments for such arrangements; the likelihood for any payment under these guarantees is remote.
v3.25.4
Schedule III
12 Months Ended
Dec. 31, 2025
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Abstract]  
Schedule III
THE TRAVELERS COMPANIES, INC. AND SUBSIDIARIES
Supplementary Insurance Information
2023-2025
(in millions)
SegmentDeferred
Acquisition
Costs
Claims and
Claim
Adjustment
Expense
Reserves
Unearned
Premiums
Earned
Premiums
Net
Investment
Income (1)
Claims and
Claim
Adjustment
Expenses
Amortization
of Deferred
Acquisition
Costs
Other
Operating
Expenses (2)
Net
Written
Premiums
2025
Business Insurance$1,750 $51,655 $11,088 $22,412 $2,782 $14,154 $3,796 $3,482 $22,679 
Bond & Specialty Insurance542 5,672 3,145 4,107 445 1,764 778 843 4,262 
Personal Insurance1,226 8,407 8,198 17,395 732 11,303 2,692 1,746 17,446 
Total—Reportable Segments3,518 65,734 22,431 43,914 3,959 27,221 7,266 6,071 44,387 
Other 3      474  
Consolidated$3,518 $65,737 $22,431 $43,914 $3,959 $27,221 $7,266 $6,545 $44,387 
2024
Business Insurance$1,698 $49,731 $10,831 $21,345 $2,560 $13,679 $3,588 $3,303 $22,078 
Bond & Specialty Insurance502 5,365 3,012 3,958 390 1,774 756 832 4,109 
Personal Insurance1,294 8,992 8,446 16,638 640 11,606 2,629 1,640 17,169 
Total—Reportable Segments3,494 64,088 22,289 41,941 3,590 27,059 6,973 5,775 43,356 
Other— — — — — — 436 — 
Consolidated$3,494 $64,093 $22,289 $41,941 $3,590 $27,059 $6,973 $6,211 $43,356 
2023
Business Insurance$1,580 $47,739 $10,068 $19,144 $2,085 $12,696 $3,173 $3,041 $20,430 
Bond & Specialty Insurance477 4,945 2,861 3,655 328 1,485 673 681 3,842 
Personal Insurance1,249 8,937 7,943 14,962 509 12,034 2,380 1,417 15,929 
Total—Reportable Segments3,306 61,621 20,872 37,761 2,922 26,215 6,226 5,139 40,201 
Other— — — — — — 413 — 
Consolidated$3,306 $61,627 $20,872 $37,761 $2,922 $26,215 $6,226 $5,552 $40,201 
___________________________________________
(1)    See note 2 of the notes to the consolidated financial statements for discussion of the method used to allocate net investment income and invested assets to the identified segments.
(2)    Expense allocations are determined in accordance with prescribed statutory accounting practices. These practices make a reasonable allocation of all expenses to those product lines with which they are associated.
See the Report of Independent Registered Public Accounting Firm.
v3.25.4
Schedule V
12 Months Ended
Dec. 31, 2025
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule V
THE TRAVELERS COMPANIES, INC. AND SUBSIDIARIES
Valuation and Qualifying Accounts
(in millions)
Balance at
beginning
of period
Charged to
costs and
expenses
Charged to
other
accounts
Deductions (1)Balance at
end of
period
2025
Reinsurance recoverables$119 $15 $ $5 $129 
Allowance for uncollectible:
Premiums receivable from underwriting activities
$58 $65 $ $65 $58 
Deductibles$28 $(2)$ $ $26 
2024
Reinsurance recoverables $118 $$— $— $119 
Allowance for uncollectible:
Premiums receivable from underwriting activities
$69 $50 $— $61 $58 
Deductibles$29 $(1)$— $— $28 
2023
Reinsurance recoverables$132 $(14)$— $— $118 
Allowance for uncollectible:
Premiums receivable from underwriting activities
$77 $42 $— $50 $69 
Deductibles$25 $$— $$29 
___________________________________________
(1)    Credited to the related asset account. Includes amounts classified as held for sale. See note 1 of the notes to the consolidated financial statements for more information. Deductions of $5 million and $1 million in reinsurance recoverables and allowance for uncollectible premiums receivable from underwriting activities, respectively, relate to assets held for sale.




See the Report of Independent Registered Public Accounting Firm.
v3.25.4
Schedule VI
12 Months Ended
Dec. 31, 2025
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters [Abstract]  
Schedule VI
THE TRAVELERS COMPANIES, INC. AND SUBSIDIARIES
Supplementary Information Concerning Property-Casualty Insurance Operations (1)
2023-2025
(in millions)
Claims and Claim
Adjustment
Expenses Incurred
Related to:
Amortization of Deferred Acquisition CostsPaid Claims and Claim Adjustment Expenses
Affiliation with Registrant(2)Deferred Acquisition CostsClaims and Claim Adjustment Expense ReservesDiscount from Reserves for Unpaid Claims(3)Unearned PremiumsEarned PremiumsNet Investment IncomeCurrent YearPrior YearNet Written Premiums
2025$3,518 $65,734 $1,027 $22,431 $43,914 $3,959 $28,051 $(939)$7,266 $23,913 $44,387 
2024$3,494 $64,088 $1,070 $22,289 $41,941 $3,590 $27,508 $(548)$6,973 $24,151 $43,356 
2023$3,306 $61,621 $1,096 $20,872 $37,761 $2,922 $26,159 $(38)$6,226 $23,276 $40,201 
___________________________________________
(1)    Excludes accident and health insurance business.
(2)    Consolidated property-casualty insurance operations.
(3)    For a discussion of types of reserves discounted and discount rates used, see note 8 of the notes to the consolidated financial statements.

See the Report of Independent Registered Public Accounting Firm.
v3.25.4
Insider Trading Arrangements
3 Months Ended
Dec. 31, 2025
Trading Arrangements, by Individual  
Rule 10b5-1 Arrangement Adopted false
Non-Rule 10b5-1 Arrangement Adopted false
Rule 10b5-1 Arrangement Terminated false
Non-Rule 10b5-1 Arrangement Terminated false
v3.25.4
Insider Trading Policies and Procedures
12 Months Ended
Dec. 31, 2025
Insider Trading Policies and Procedures [Line Items]  
Insider Trading Policies and Procedures Adopted true
v3.25.4
Cybersecurity Risk Management and Strategy Disclosure
12 Months Ended
Dec. 31, 2025
Cybersecurity Risk Management, Strategy, and Governance [Line Items]  
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]
Risk management and strategy
The Company has implemented technologies and tools to evaluate its cybersecurity protections and maintain a cyber risk management strategy related to its technology infrastructure that includes monitoring emerging cybersecurity threats and assessing appropriate responsive measures.
Risk Identification
The Company’s Chief Information Security Officer (“CISO”) and Cybersecurity team are actively engaged within the cybersecurity community in order to monitor emerging trends and developments and share best practices for identifying and mitigating cyber threats. For example, the Company participates in threat intelligence information-sharing networks, such as the Financial Services Information Sharing and Analysis Center (FS-ISAC). The Company also tracks industry and government intelligence sources for information about evolving cyber threats and deploys updates to its systems, as appropriate. The Company’s Cybersecurity team monitors and investigates suspicious events.
Risk Assessment
The Company performs an annual cybersecurity risk and control assessment as part of the Enterprise Risk Management team’s risk assessment processes. The CISO and the Chief Financial Officer of the Company’s Technology and Operations group review and approve the cybersecurity assessment. The Company’s Chief Technology and Operations Officer and the Chief Financial Officer of the Company’s Technology and Operations group review and approve the list of emerging, strategic and transformative risks upon which the Enterprise Risk Management team’s cybersecurity risk and control assessment processes are based. In addition, as part of their regular responsibilities, the Company’s Risk and Security officers within its Technology and Cybersecurity groups assess technology and cybersecurity risks by leveraging the Company’s risk framework related to technology and cybersecurity, which aligns with the Company’s enterprise risk management strategy.
On an annual basis, under the direction of the Company’s Chief Risk Officer, the Company’s Technology, Cybersecurity and Business Resiliency groups also participate in the enterprise-wide Own Risk and Solvency Assessment (“ORSA”), which outlines identified risks and describes the controls in place across the Company to address those risks. The ORSA is reviewed with the Company’s lead regulator, the State of Connecticut Department of Insurance, which in turn performs periodic financial examinations, including a technology control assessment.
In addition, the Company regularly self-assesses against its internal policies, using its internal risk assessment process and a variety of frameworks, such as the New York Department of Financial Services Cybersecurity Requirements for Financial Services Companies, the Insurance Data Security Model Law as adopted and modified by various states and the Payment Card Industry Data Security Standard.
As the workforce, the work environment and the threat landscape continue to evolve, the Company seeks to evaluate related risks and implement appropriate controls.
Risk Management
The Company maintains cybersecurity policies and standards that are modeled to align with the International Organization for Standardization (ISO) 27001 standard and the National Institute of Standards and Technology (NIST) Cybersecurity Framework. The Company’s cybersecurity policies and standards have been developed in collaboration with groups across the enterprise, such as Legal, Compliance, Technology, and each of its business segments. The Company’s policies include, for example, Information and System Use policies for employee and non-employee system users. These policies reinforce the data privacy and protection sections of the Company’s Code of Business Conduct and Ethics.
The Company uses certain technologies and tools, as appropriate, to enhance cybersecurity, such as multifactor authentication, encryption, firewalls, intrusion prevention systems, endpoint detection and response, data loss prevention, vulnerability
scanning, penetration testing, patch management and identity and access management systems. These systems are designed, implemented and maintained with the goal of identifying, assessing and managing cybersecurity risks. In addition to its internal cybersecurity team, the Company uses internal and external auditors and, as appropriate, third-party consultants, service providers and assessors to review and test its processes and controls.
To help manage risk related to potential cybersecurity threats, as part of the annual Code of Business Conduct and Ethics training, all Company employees receive data protection and privacy training, which focuses on the need to appropriately protect and secure confidential Company information. Additionally, the Company provides annual security awareness training that covers a broad range of security topics. The Company also provides regular targeted training on topics such as artificial intelligence related risks, phishing and secure application development, among others. In addition to online training, the Company provides employees with cybersecurity information through a number of different methods, including awareness campaigns, gamified activities, recognition programs, security presentations, intranet articles, videos, system-generated communications, email publications and various simulation exercises.
The Company has a Security Incident Response Framework (Framework) in place. The Framework comprises a set of coordinated procedures and tasks that the Company’s Incident Response team, under the direction of the CISO, executes with the goal of ensuring timely and effective resolution of cybersecurity incidents. To maintain the robustness of the Framework, from time-to-time the Company conducts cybersecurity tabletop testing exercises.
As part of the Company’s supplier risk management program, using a risk-based approach, the Cybersecurity team conducts formal risk assessments with respect to certain of the Company’s third-party service providers. The assessment process addresses aspects of the service providers’ data security controls and policies. The team also conducts reassessments of its third-party service providers, the frequency of which is determined based on a risk assessment and rating process. Where appropriate, the Company seeks to incorporate contractual language with third-party service providers that includes clear terms involving the collection, use, sharing and retention of user data, as well as compliance with appropriate security terms. Additionally, our Procurement group has a framework to help identify and mitigate supplier risks, as well as enable management to make risk informed decisions.
To date, the Company does not believe that any risks from cybersecurity threats, including as a result of any previous cybersecurity incidents, have materially affected the Company, including its business strategy, results of operations, or financial condition. As discussed more fully under “Item 1A—Risk Factors”, the sophistication of cyber threats continues to increase, and the preventative actions the Company takes to reduce the risk of cyber incidents and protect its systems and information may be insufficient. No matter how well designed or implemented the Company’s cybersecurity controls are, it will not be able to anticipate all security breaches, and it may not be able to implement effective preventive measures against cybersecurity breaches in a timely manner. See “Item 1A—Risk Factors—If, as a result of a cyber-attack (the risk of which could be exacerbated by geopolitical tensions) or otherwise, we experience difficulties with technology, data and network security, outsourcing relationships or cloud-based technology, our ability to conduct our business could be negatively impacted.”
Cybersecurity Risk Management Processes Integrated [Flag] true
Cybersecurity Risk Management Processes Integrated [Text Block]
The Company has implemented technologies and tools to evaluate its cybersecurity protections and maintain a cyber risk management strategy related to its technology infrastructure that includes monitoring emerging cybersecurity threats and assessing appropriate responsive measures.
Cybersecurity Risk Management Third Party Engaged [Flag] true
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag] true
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag] false
Cybersecurity Risk Board of Directors Oversight [Text Block]
The Risk Committee of the Company’s Board of Directors, consistent with its charter, reviews and discusses with management the strategies, processes and controls pertaining to the management of the Company’s information technology operations, including cyber risks and cybersecurity. The CISO typically provides quarterly updates regarding cybersecurity and cyber risk to executive management and the Risk Committee of the Company’s Board of Directors.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block] The Risk Committee of the Company’s Board of Directors, consistent with its charter, reviews and discusses with management the strategies, processes and controls pertaining to the management of the Company’s information technology operations, including cyber risks and cybersecurity.
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] The CISO typically provides quarterly updates regarding cybersecurity and cyber risk to executive management and the Risk Committee of the Company’s Board of Directors.
Cybersecurity Risk Role of Management [Text Block]
The CISO leads the Company’s cybersecurity department. The CISO reports to the Chief Technology and Operations Officer and is a member of the Enterprise Risk team and the Company’s Disclosure Committee. The CISO has over 20 years of cybersecurity and information security risk compliance and threat analysis experience. Prior to joining the Company in 2023, the CISO served as Chief Security Officer for a national telecommunications service provider. Under the direction of the CISO, the Company’s Cybersecurity department analyzes cybersecurity and resiliency risks to the Company’s business, considers industry trends and implements controls, as appropriate, to mitigate these risks. This analysis drives the Company’s long- and short-term strategies, which are executed through a collaborative effort within Technology, Cybersecurity and Business Resiliency and are communicated to the Risk Committee of the Board of Directors on a regular basis.
Cybersecurity Risk Management Positions or Committees Responsible [Flag] true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block] The CISO leads the Company’s cybersecurity department.
Cybersecurity Risk Management Expertise of Management Responsible [Text Block] The CISO has over 20 years of cybersecurity and information security risk compliance and threat analysis experience. Prior to joining the Company in 2023, the CISO served as Chief Security Officer for a national telecommunications service provider.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] The CISO typically provides quarterly updates regarding cybersecurity and cyber risk to executive management and the Risk Committee of the Company’s Board of Directors.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] true
v3.25.4
Summary of Significant Accounting Policies (Policies)
12 Months Ended
Dec. 31, 2025
Accounting Policies [Abstract]  
Basis of Presentation [Policy Text Block]
Basis of Presentation
The consolidated financial statements include the accounts of The Travelers Companies, Inc. (together with its subsidiaries, the Company). The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and claims and expenses during the reporting period. Actual results could differ from those estimates. All material intercompany transactions and balances have been eliminated. To the extent that the Company changes its accounting for or presentation of items in the financial statements, the presentation of such amounts in prior periods is changed to conform to the current period presentation, if appropriate, and a disclosure is provided, if material.
On January 2, 2024, the Company completed its previously announced acquisition of all issued and outstanding shares of Corvus Insurance Holdings, Inc. and its subsidiaries (Corvus), a cyber insurance managing general underwriter, for consideration transferred of approximately $427 million. The acquisition provided the Company the opportunity to renew Corvus’s book of business and to leverage Corvus’s capabilities to enhance the return profile of Travelers’ existing cyber portfolio. At the acquisition date, the Company recorded at fair value $478 million of assets acquired and $51 million of liabilities assumed as part of purchase accounting, including $390 million of identifiable intangible assets and goodwill. The assets acquired from Corvus were included in the Company’s Bond & Specialty Insurance segment, effective at the acquisition date. The Company funded this transaction from internal resources. A provisional amount of $19 million was recorded as a deferred tax asset and included on the consolidated balance sheet on January 2, 2024, and was later increased by an insignificant amount when the 2023 tax return for Corvus was finalized.
On May 27, 2025, the Company entered into an agreement to sell its Canadian personal insurance business and the majority of its Canadian commercial insurance business to Definity Financial Corporation for approximately US$2.4 billion. The assets and liabilities of the Canadian personal insurance business and the majority of its Canadian commercial insurance business have been classified as held for sale in the consolidated balance sheet as of December 31, 2025. The Company retained its surety business in Canada. The sale closed on January 2, 2026.
The major classes of assets and liabilities classified as held for sale were as follows:
December 31,
2025
Assets
Fixed maturities, available for sale, at fair value$3,243 
Premiums receivable263 
Reinsurance recoverables285 
Goodwill208 
Remaining assets held for sale551 
Total assets held for sale$4,550 
Liabilities 
Claims and claim adjustment expense reserves$1,909 
Unearned premium reserves514 
Remaining liabilities held for sale119 
Total liabilities held for sale$2,542 
Investments [Policy Text Block]
Investments
Fixed Maturities
Fixed maturities include bonds, notes and redeemable preferred stocks. Fixed maturities, including instruments subject to securities lending agreements, are classified as available for sale and reported at fair value, with unrealized investment gains and losses, net of income taxes, charged or credited directly to other comprehensive income.
Equity Securities
Equity securities, which include public and non-public common and non-redeemable preferred stocks, are reported at fair value with changes in fair value recognized in net realized investment gains (losses).
Real Estate Investments
The Company’s real estate investments include warehouses, office buildings and other commercial land and properties that are directly owned. Real estate is recorded on the purchase date at the purchase price, which generally represents fair value, and is supported by internal analysis or external appraisals that use discounted cash flow analyses and other acceptable valuation techniques. Real estate held for investment purposes is subsequently carried at cost less accumulated depreciation.
Buildings are depreciated on a straight-line basis over the shorter of the expected useful life of the building or 39 years. Real estate held for sale is carried at lower of cost or fair value, less estimated costs to sell.
Short-term Securities
Short-term securities have an original maturity of less than one year and are carried at amortized cost, which approximates fair value.
Other Investments
Investments in Private Equity Limited Partnerships, Hedge Funds and Real Estate Partnerships
The Company uses the equity method of accounting for investments in private equity limited partnerships, hedge funds and real estate partnerships. The partnerships and the hedge funds generally report investments on their balance sheet at fair value. The financial statements prepared by the investee are received by the Company on a lag basis, with the lag period generally dependent upon the type of underlying investments. The private equity and real estate partnerships provide financial information quarterly which is generally available to investors, including the Company, within three months following the date of the reporting period. The hedge funds provide financial information monthly, which is generally available to investors within one month following the date of the reporting period. The Company regularly requests financial information from the partnerships prior to the receipt of the partnerships’ financial statements and records any material information obtained from these requests in its consolidated financial statements.
Other
Derivatives are also included in other investments. The Company’s derivative financial instruments are carried at fair value, with the changes in fair value reflected in the consolidated statement of income in net realized investment gains (losses). For a further discussion of the derivatives used by the Company, see note 3.
Net Investment Income [Policy Text Block]
Net Investment Income
Investment income from fixed maturities is recognized based on the constant effective yield method which includes an adjustment for estimated principal pre-payments, if any. The effective yield used to determine amortization for fixed maturities subject to prepayment risk (e.g., asset-backed, loan-backed and structured securities) is recalculated and adjusted periodically based upon actual historical and/or projected future cash flows, which are obtained from a widely-accepted securities data provider. The adjustments to the yield for highly rated prepayable fixed maturities are accounted for using the retrospective method. The adjustments to the yield for non-highly rated prepayable fixed maturities are accounted for using the prospective method. Dividends on equity securities (including those with transfer restrictions) are recognized in income when declared.  Rental income on real estate is recognized on a straight-line basis over the lease term. See the section titled: Real Estate in note 3 for further discussion. Investments in private equity limited partnerships, hedge funds, real estate partnerships and joint ventures are accounted for using the equity method of accounting, whereby the Company’s share of the investee’s earnings or losses in the fund is reported in net investment income.
Accrual of income is suspended on non-securitized fixed maturities that are in default, or on which it is likely that future payments will not be made as scheduled. Interest income on investments in default is recognized only when payments are received. Investments included in the consolidated balance sheet that were not income-producing for the preceding 12 months were not material.
Net Realized Investment Gains and Losses [Policy Text Block]
Net Realized Investment Gains and Losses
Net realized investment gains and losses include net realized gains (losses) from the sale of investments, credit impairment losses on investment assets, impairments of real estate investments, changes in the fair value of equity securities, foreign currency transaction gains and losses and changes in the fair value of derivative financial instruments. Net realized investment gains (losses) on the sale of investments are included as a component of pre-tax revenues based upon specific identification of the investments sold on the trade date.
Investment Impairments [Policy Text Block]
Investment Impairments
The Company conducts a periodic review to identify and evaluate invested assets that may have credit impairments.
Credit Impairments Related to Fixed Maturity Investments
Some of the factors considered in assessing impairment of fixed maturity investments due to credit-related factors include: (1) the extent to which the fair value has been less than amortized cost; (2) the financial condition, near-term and long-term prospects for the issuer, including the relevant industry conditions and trends, and implications of rating agency actions and offering prices; (3) the likelihood of the recoverability of principal and interest; and (4) whether it is more likely than not that the Company will be required to sell the investment prior to an anticipated recovery in value.
For fixed maturity investments that the Company does not intend to sell or for which it is more likely than not that the Company would not be required to sell before an anticipated recovery in value, the Company separates the credit loss component of the impairment from the amount related to all other factors and reports the credit loss component in net realized investment gains (losses). The impairment related to all other factors (non-credit factors) is reported in other comprehensive income. The allowance is adjusted for any additional credit losses and subsequent recoveries. Upon recognizing a credit loss, the cost basis is not adjusted.
For fixed maturity investments where the Company records a credit loss, a determination is made as to the cause of the impairment and whether the Company expects a recovery in the value. For fixed maturity investments where the Company expects a recovery in value, the constant effective yield method is utilized, and the investment is amortized to par.
For fixed maturity investments the Company intends to sell or for which it is more likely than not that the Company will be required to sell before an anticipated recovery in value, the full amount of the impairment is included in net realized investment gains (losses). The new cost basis of the investment is the previous amortized cost basis less the impairment recognized in net realized investment gains (losses). The new cost basis is not adjusted for any subsequent recoveries in fair value.
The Company reports investment income accrued separately from fixed maturity investments, available for sale, and has elected not to measure an allowance for credit losses for investment income accrued. Investment income accrued is written off through net realized investment gains (losses) at the time the issuer of the bond defaults or is expected to default on payments.
Uncollectible available-for-sale debt securities are written-off when the Company determines that no additional payments of principal or interest will be received.
Determination of Credit Loss — Fixed Maturities
The Company determines the credit loss component of fixed maturity investments by utilizing discounted cash flow modeling to determine the present value of the security and comparing the present value with the amortized cost of the security. If the amortized cost is greater than the present value of the expected cash flows, the difference is considered a credit loss and recognized as an impairment loss in net realized investment gains (losses).
For non-structured fixed maturities (U.S. Treasury securities, obligations of U.S. government and government agencies and authorities, obligations of states, municipalities and political subdivisions, debt securities issued by foreign governments and certain corporate debt), the estimate of expected cash flows is determined by projecting a recovery value and a recovery time frame and assessing whether further principal and interest will be received. The determination of recovery value incorporates an issuer valuation assumption utilizing one or a combination of valuation methods as deemed appropriate by the Company. The Company determines the undiscounted recovery value by allocating the estimated value of the issuer to the Company’s assessment of the priority of claims. The present value of the cash flows is determined by applying the effective yield of the security at the date of acquisition (or the most recent implied rate used to accrete the security if the implied rate has changed as a result of a previous impairment) and an estimated recovery time frame. Generally, that time frame for securities for which the issuer is in bankruptcy is 12 months. For securities for which the issuer is financially troubled but not in bankruptcy, that time frame is generally 24 months. Included in the present value calculation are expected principal and interest payments; however, for securities for which the issuer is classified as bankrupt or in default, the present value calculation assumes no interest payments and a single recovery amount.
In estimating the recovery value, significant judgment is involved in the development of assumptions relating to a myriad of factors related to the issuer including, but not limited to, revenue, margin and earnings projections, the likely market or liquidation values of assets, potential additional debt to be incurred pre- or post-bankruptcy/restructuring, the ability to shift existing or new debt to different priority layers, the amount of restructuring/bankruptcy expenses, the size and priority of unfunded pension obligations, litigation or other contingent claims, the treatment of intercompany claims and the likely outcome with respect to inter-creditor conflicts.
For structured fixed maturity securities (primarily residential and commercial mortgage-backed securities and asset-backed securities), the Company estimates the present value of the security by projecting future cash flows of the assets underlying the securitization, allocating the flows to the various tranches based on the structure of the securitization and determining the present value of the cash flows using the effective yield of the security at the date of acquisition (or the most recent implied rate used to accrete the security if the implied rate has changed as a result of a previous impairment or changes in expected cash flows). The Company incorporates levels of delinquencies, defaults and severities as well as credit attributes of the remaining assets in the securitization, along with other economic data, to arrive at its estimate of the parameters applied to the assets underlying the securitization. 
Real Estate Investments
On at least an annual basis, the Company obtains independent appraisals for substantially all of its real estate investments. In addition, the carrying value of all real estate investments is reviewed for impairment on a quarterly basis or when events or changes in circumstances indicate that the carrying amount may not be recoverable. The review for impairment considers the valuation from the independent appraisal, when applicable, and incorporates an estimate of the undiscounted cash flows expected to result from the use and eventual disposition of the real estate property. An impairment loss is recognized if the expected future undiscounted cash flows are less than the carrying value of the real estate property. The impairment loss is the amount by which the carrying amount exceeds fair value.
Other Investments
The Company reviews its investments in private equity limited partnerships, hedge funds and real estate partnerships for impairment no less frequently than quarterly and monitors the performance throughout the year through discussions with the managers/general partners. If the Company becomes aware of an impairment of a partnership’s investments at the balance sheet date prior to receiving the partnership’s financial statements, it will recognize an impairment by recording a reduction in the carrying value of the partnership with a corresponding charge to net investment income.
Changes in Intent to Sell Temporarily Impaired Assets
The Company may, from time to time, sell invested assets subsequent to the balance sheet date that it did not intend to sell at the balance sheet date. Conversely, the Company may not sell invested assets that it asserted that it intended to sell at the balance sheet date. Such changes in intent are due to events occurring subsequent to the balance sheet date. The types of events that may result in a change in intent include, but are not limited to, significant changes in the economic facts and circumstances related to the invested asset (e.g., a downgrade or upgrade from a rating agency), significant unforeseen changes in liquidity needs, or changes in tax laws or the regulatory environment.
Securities Lending [Policy Text Block]
Securities Lending
The Company has, from time to time, engaged in securities lending activities from which it generates net investment income by lending certain of its investments to other institutions for short periods of time. Borrowers of these securities provide collateral equal to at least 102% of the market value of the loaned securities plus accrued interest. This collateral is held by a third-party custodian, and the Company has the right to access the collateral only in the event that the institution borrowing the Company’s securities is in default under the lending agreement (i.e., the Company is not permitted to re-pledge or sell any such collateral). Therefore, the Company does not recognize the receipt of the collateral held by the third-party custodian or the obligation to return the collateral. The loaned securities remain a recorded asset of the Company. The Company accepts only cash as collateral for securities on loan and restricts the manner in which that cash is invested.
Restricted Cash [Policy Text Block]
Restricted Cash
Restricted cash represents funds that are legally or contractually restricted as to withdrawal or usage. These restrictions primarily relate to certain wholly-owned subsidiaries of the Company providing brokerage and other insurance-related services.
Reinsurance Recoverables [Policy Text Block]
Reinsurance Recoverables
Amounts recoverable from reinsurers are estimated in a manner consistent with the associated claim liability. Included in reinsurance recoverables are amounts related to certain structured settlements. The Company reports its reinsurance recoverables net of an allowance for amounts that are estimated to be uncollectible. The allowance is based upon the Company’s ongoing review of amounts outstanding, length of collection periods, changes in reinsurer credit standing, disputes, applicable coverage defenses and other relevant factors. For structured settlements, the allowance is also based upon the Company’s ongoing review of life insurers’ creditworthiness and estimated amounts of coverage that would be available from state guaranty funds if a life insurer defaults. A probability-of-default methodology which reflects current and forecasted economic conditions is used to estimate the amount of uncollectible reinsurance due to credit-related factors and the estimate is reported in an allowance for estimated uncollectible reinsurance. The allowance also includes estimated uncollectible amounts related to dispute risk with reinsurers. Amounts deemed to be uncollectible, including amounts due from known insolvent reinsurers, are written off against the allowance. Changes in the allowance, as well as any subsequent collections of amounts previously written off, are reported as part of claims and claim adjustment expenses. The Company evaluates and monitors the financial condition of its reinsurers under voluntary reinsurance arrangements to minimize its exposure to significant losses from reinsurer insolvencies.
Deferred Acquisition Costs [Policy Text Block]
Deferred Acquisition Costs
Incremental direct costs of acquired, new and renewal insurance contracts, consisting of commissions (other than contingent commissions) and premium-related taxes, are capitalized and charged to expense pro rata over the contract periods in which the related premiums are earned. Deferred acquisition costs are reviewed to determine if they are recoverable from future income and, if not, are charged to expense. Future investment income attributable to related premiums is taken into account in measuring the recoverability of the carrying value of this asset. All other acquisition expenses are charged to operations as incurred.
Contractholder Receivables and Payables [Policy Text Block]
Contractholder Receivables and Payables
Under certain workers’ compensation insurance contracts with deductible features, the Company is obligated to pay the claimant for the full amount of the claim. The Company is subsequently reimbursed by the policyholder for the deductible amount. These amounts are included on a gross basis in the consolidated balance sheet in both contractholder payables and contractholder receivables. Contractholder receivables are reported net of an allowance for expected credit losses. The allowance is based upon the Company’s ongoing review of amounts outstanding, changes in policyholder credit standing, and other relevant factors. A probability-of-default methodology, which reflects current and forecasted economic conditions, is used to estimate the allowance for expected credit losses.
Goodwill and Other Intangible Assets [Policy Text Block]
Goodwill and Other Intangible Assets
The Company performs a review, on at least an annual basis, of goodwill held by the reporting units which are the Company’s three operating and reportable segments: Business Insurance; Bond & Specialty Insurance; and Personal Insurance. The Company estimates the fair value of its reporting units and compares it to their carrying value, including goodwill. If the carrying values of the reporting units were to exceed their fair value, the amount of the impairment would be calculated and goodwill adjusted accordingly.
The Company uses a discounted cash flow model to estimate the fair value of its reporting units. The discounted cash flow model is an income approach to valuation that is based on a detailed cash flow analysis for deriving a current fair value of reporting units and is representative of the Company’s reporting units’ current and expected future financial performance. The discount rate assumptions reflect the Company’s assessment of the risks inherent in the projected future cash flows and the Company’s weighted-average cost of capital, and are compared against available market data for reasonableness.
Other indefinite-lived intangible assets held by the Company are also reviewed for impairment on at least an annual basis. The classification of the asset as indefinite-lived is reassessed and an impairment is recognized if the carrying amount of the asset exceeds its fair value.
Intangible assets that are deemed to have a finite useful life are amortized over their useful lives. The carrying amount of intangible assets with a finite useful life is regularly reviewed for indicators of impairment in value. Impairment is recognized
only if the carrying amount of the intangible asset is not recoverable from its undiscounted cash flows and is measured as the difference between the carrying amount and the fair value of the asset.
As a result of the reviews performed for the years ended December 31, 2025, 2024 and 2023, the Company determined that the estimated fair value substantially exceeded the respective carrying value of its reporting units for those years and that goodwill was not impaired. The Company also determined during its reviews for each year that its other indefinite-lived intangible assets and finite-lived intangible assets were not impaired.
Internal-Use Software [Policy Text Block]
Internal-Use Software
In the ordinary course of business, the Company develops and purchases software as well as enters into arrangements to utilize software as a service under cloud computing arrangements. These software costs and any costs related to the implementation and set-up of the cloud computing arrangements are capitalized and reported within other assets in the consolidated balance sheet.
Claims and Claims Adjustment Expense Reserves [Policy Text Block]
Claims and Claim Adjustment Expense Reserves
Claims and claim adjustment expense reserves represent management’s estimate of the ultimate liability for unpaid losses and loss adjustment expenses for claims that have been reported and claims that have been incurred but not yet reported (IBNR) as of the balance sheet date. The reserves are adjusted regularly based upon experience. Included in the claims and claim adjustment expense reserves in the consolidated balance sheet are reserves for long-term disability and annuity claim payments, primarily arising from workers’ compensation insurance and workers’ compensation excess insurance policies, that are discounted to the present value of estimated future payments.
The Company performs a continuing review of its claims and claim adjustment expense reserves, including its reserving techniques and the impact of reinsurance. The reserves are also reviewed regularly by qualified actuaries employed by the Company. Since the reserves are based on estimates, the ultimate liability may be more or less than such reserves. The effects of changes in such estimated reserves are included in the results of operations in the period in which the estimates are changed. Such changes in estimates could occur in a future period and may be material to the Company’s results of operations and financial position in such period.
Other Liabilities [Policy Text Block]
Other Liabilities
Included in other liabilities in the consolidated balance sheet is the Company’s estimate of its liability for guaranty fund and other insurance-related assessments. The liability for expected state guaranty fund and other premium-based assessments is recognized as the Company writes or becomes obligated to write or renew the premiums on which the assessments are expected to be based. The liability for loss-based assessments is recognized as the related losses are incurred. As of December 31, 2025 and 2024, the Company had a liability of $188 million and $182 million, respectively, for guaranty fund and other insurance-related assessments and related recoverables of $30 million and $29 million, respectively. The liability for such assessments and the related recoverables are not discounted for the time value of money. The loss-based assessments are expected to be paid over a period ranging from one year to the life expectancy of certain workers’ compensation claimants and the recoveries are expected to occur over the same period of time.
Also included in other liabilities is an accrual for policyholder dividends. Certain insurance contracts, primarily workers’ compensation, are participating whereby dividends are paid to policyholders in accordance with contract provisions. Net written premiums for participating dividend policies were approximately 1% of total net written premiums for each of the years ended December 31, 2025, 2024 and 2023. Policyholder dividends are accrued against earnings using best available estimates of amounts to be paid. The liability accrued for policyholder dividends totaled $80 million and $81 million as of December 31, 2025 and 2024, respectively.
Treasury Stock [Policy Text Block]
Treasury Stock
The cost of common stock repurchased by the Company is reported as treasury stock and represents authorized and unissued shares of the Company under the Minnesota Business Corporation Act.
Statutory Accounting Practices [Policy Text Block]
Statutory Accounting Practices
The Company’s U.S. insurance subsidiaries, domiciled principally in the State of Connecticut, are required to prepare statutory financial statements in accordance with the accounting practices prescribed or permitted by the insurance departments of the states of domicile. Prescribed statutory accounting practices are those practices that are incorporated directly or by reference in state laws, regulations, and general administrative rules applicable to all insurance enterprises domiciled in a particular state. The State of Connecticut requires insurers domiciled in Connecticut to prepare their statutory financial statements in accordance with National Association of Insurance Commissioners’ (NAIC) statutory accounting practices.
Permitted statutory accounting practices are those practices that differ either from state-prescribed statutory accounting practices or NAIC statutory accounting practices.
The Company does not apply any statutory accounting practices that would be considered a prescribed or permitted statutory accounting practice that differs from NAIC statutory accounting practices.
The Company’s non-U.S. insurance subsidiaries file financial statements prepared in accordance with the regulatory reporting requirements of their respective local jurisdiction.
Premiums and Unearned Premium Reserves [Policy Text Block]
Premiums and Unearned Premium Reserves
Premiums are recognized as revenues over the period of the contract in proportion to the amount of insurance protection provided, which is generally pro rata over the policy period. Unearned premium reserves represent the unexpired portion of policy premiums. Accrued retrospective premiums are included in premium balances receivable. Premium balances receivable are reported net of an allowance for expected credit losses. The allowance is based upon the Company’s ongoing review of amounts outstanding, historical loss data, including delinquencies and write-offs, current and forecasted economic conditions and other relevant factors. Credit risk is partially mitigated by the Company’s ability to cancel the policy if the policyholder does not pay the premium.
The cost of reinsurance premiums (ceded reinsurance premiums) is generally reflected in income (as a charge to income) in a manner consistent with the recognition of premium on the underlying reinsurance contracts. For catastrophe coverage, the cost of reinsurance premiums is generally recognized ratably over the contract period to the extent coverage remains available. Ceded unearned premiums represent the unexpired portion of premiums ceded to reinsurers and are reported as an asset on the consolidated balance sheet.
Fee Income [Policy Text Block]
Fee Income
Fee income includes revenues from risk and claims management services provided to the Company’s insureds and third-party non-insureds, as well as policy issuance and claims management services to workers’ compensation residual market pools. Fee income is earned over the policy period for the services provided to the Company’s insureds, and either over the contract period or as the Company completes its service obligations for the services provided to third-party non-insureds.
Other Revenues [Policy Text Block]
Other Revenues
Other revenues include revenues from premium installment charges, which are recognized as collected, gains and losses on dispositions of assets and redemption of debt, and other miscellaneous revenues, including gains recognized as a result of settlements of reinsurance disputes and claim-related legal matters.
Other revenues also include revenues from noninsurance subsidiaries (other than fee income) for insurance-related services and on-line insurance brokerage services and is recognized as the service is provided to the customer.
Income Taxes [Policy Text Block]
Income Taxes
The Company recognizes deferred income tax assets and liabilities for the expected future tax effects attributable to temporary differences between the financial statement and tax return bases of assets and liabilities, based on enacted tax rates and other provisions of the tax law. The effect of a change in tax laws or rates on deferred tax assets and liabilities is recognized in income in the period in which such change is enacted. Deferred tax assets are reduced by a valuation allowance if it is more likely than not that all or some portion of the deferred tax assets will not be realized.
Foreign Currency [Policy Text Block]
Foreign Currency
The Company assigns functional currencies to its foreign operations, which are generally the currencies of the local operating environment. Foreign currency amounts are remeasured to the functional currency, and the resulting foreign exchange gains or losses are reported in net realized investment gains (losses). Functional currency amounts are then translated into U.S. dollars. The foreign currency remeasurement and translation are calculated using current exchange rates for items reported in the balance sheet and average exchange rates for items recorded in earnings. The change in unrealized foreign currency translation gain or loss during the year, net of tax, is a component of other comprehensive income (loss).
Foreign currency gains and losses related to the changes in fair value of available-for-sale fixed maturities are reported in other comprehensive income. All other foreign currency transaction gains and losses are reported in earnings.
Share-based Compensation [Policy Text Block]
Share-Based Compensation
The Company has an employee stock incentive compensation plan that permits grants of nonqualified stock options, incentive stock options, stock appreciation rights, restricted stock, deferred stock, stock units, performance awards and other share-based or share-denominated awards with respect to the Company’s common stock.
Compensation cost is measured based on the grant-date fair value of an award, utilizing the assumptions discussed in note 14.  Compensation cost is recognized for financial reporting purposes over the period in which the employee is required to provide service in exchange for the award (generally the vesting period). In connection with certain share-based awards, participants are entitled to receive dividends during the vesting period, either in cash or dividend equivalent shares, commensurate with the dividends paid to common shareholders. Dividends and dividend equivalent shares on awards that are expected to vest are recorded in retained earnings. Dividends paid on awards that are not expected to vest as part of the Company’s forfeiture estimate are recorded as compensation expense.
v3.25.4
Summary of Significant Accounting Policies (Table)
12 Months Ended
Dec. 31, 2025
Accounting Policies [Abstract]  
Major Classes of Assets and Liabilities Classified as Held for Sale [Table Text Block]
The major classes of assets and liabilities classified as held for sale were as follows:
December 31,
2025
Assets
Fixed maturities, available for sale, at fair value$3,243 
Premiums receivable263 
Reinsurance recoverables285 
Goodwill208 
Remaining assets held for sale551 
Total assets held for sale$4,550 
Liabilities 
Claims and claim adjustment expense reserves$1,909 
Unearned premium reserves514 
Remaining liabilities held for sale119 
Total liabilities held for sale$2,542 
v3.25.4
Segment Information (Tables)
12 Months Ended
Dec. 31, 2025
Segment Reporting [Abstract]  
Components of the Company's revenues and income (loss) by reportable business segment [Table Text Block]
(for the year ended December 31, in millions)Business
Insurance
Bond &
Specialty
Insurance
Personal
Insurance
Total
Reportable
Segments
2025
Premiums$22,412 $4,107 $17,395 $43,914 
Net investment income2,782 445 732 3,959 
Fee income445  50 495 
Other revenues379 27 102 508 
Total segment revenues (1)
26,018 4,579 18,279 48,876 
Claims and claim adjustment expenses14,154 1,764 11,303 27,221 
Amortization of deferred acquisition costs3,796 778 2,692 7,266 
General and administrative expenses3,482 843 1,746 6,071 
Income tax expense891 244 485 1,620 
Segment income (1)
$3,695 $950 $2,053 $6,698 
2024
Premiums$21,345 $3,958 $16,638 $41,941 
Net investment income2,560 390 640 3,590 
Fee income430 — 43 473 
Other revenues322 30 97 449 
Total segment revenues (1)
24,657 4,378 17,418 46,453 
Claims and claim adjustment expenses13,679 1,774 11,606 27,059 
Amortization of deferred acquisition costs3,588 756 2,629 6,973 
General and administrative expenses3,303 832 1,640 5,775 
Income tax expense781 201 294 1,276 
Segment income (1)
$3,306 $815 $1,249 $5,370 
2023
Premiums$19,144 $3,655 $14,962 $37,761 
Net investment income2,085 328 509 2,922 
Fee income400 — 33 433 
Other revenues232 25 96 353 
Total segment revenues (1)
21,861 4,008 15,600 41,469 
Claims and claim adjustment expenses12,696 1,485 12,034 26,215 
Amortization of deferred acquisition costs3,173 673 2,380 6,226 
General and administrative expenses3,041 681 1,417 5,139 
Income tax expense (benefit)368 227 (103)492 
Segment income (loss) (1)
$2,583 $942 $(128)$3,397 
_________________________________________
(1)Segment revenues for reportable business segments exclude net realized investment gains (losses) and revenues included in “interest expense and other.” Segment income (loss) for reportable business segments excludes the after-tax impact of net realized investment gains (losses) and income (loss) from “interest expense and other.”
Prior year reserve development and catastrophe losses by reportable business segments were as follows:
(for the year ended December 31, in millions)Business
Insurance
Bond &
Specialty
Insurance
Personal
Insurance
Total
Reportable
Segments
2025
Net favorable prior year reserve development$233 $221 $582 $1,036 
Catastrophe losses$1,073 $25 $2,592 $3,690 
2024
Net favorable prior year reserve development$90 $129 $490 $709 
Catastrophe losses$1,032 $51 $2,252 $3,335 
2023
Net favorable (unfavorable) prior year reserve development$(289)$285 $147 $143 
Catastrophe losses$838 $37 $2,116 $2,991 
The following table presents the Company’s amortization and depreciation expense by reportable business segment (excluding the amortization of deferred acquisition costs which is disclosed separately in the table above with segment income (loss) by reportable business segment).
(for the year ended December 31, in millions)202520242023
Business Insurance$409 $426 $467 
Bond & Specialty Insurance82 86 71 
Personal Insurance182 197 178 
Total$673 $709 $716 
Net written premiums by market [Table Text Block]
Net written premiums by market were as follows:
(for the year ended December 31, in millions)202520242023
Business Insurance:
Domestic:
Select Accounts$3,830 $3,727 $3,477 
Middle Market12,541 12,023 11,045 
National Accounts1,262 1,259 1,135 
National Property and Other3,112 3,134 3,008 
Total Domestic20,745 20,143 18,665 
International1,934 1,935 1,765 
Total Business Insurance22,679 22,078 20,430 
Bond & Specialty Insurance:
Domestic:
Management Liability2,326 2,309 2,156 
Surety1,354 1,294 1,147 
Total Domestic3,680 3,603 3,303 
International582 506 539 
Total Bond & Specialty Insurance4,262 4,109 3,842 
Personal Insurance:
Domestic:
Automobile7,745 7,925 7,330 
Homeowners and Other9,051 8,550 7,949 
Total Domestic16,796 16,475 15,279 
International650 694 650 
Total Personal Insurance17,446 17,169 15,929 
Total consolidated net written premiums$44,387 $43,356 $40,201 
Business segment reconciliations of revenue and income, net of tax [Table Text Block]
(for the year ended December 31, in millions)202520242023
Revenue reconciliation
Earned premiums
Business Insurance:
Domestic:
Workers’ compensation$3,360 $3,470 $3,467 
Commercial automobile3,942 3,590 3,215 
Commercial property3,772 3,616 3,154 
General liability3,566 3,464 3,146 
Commercial multi-peril5,797 5,269 4,686 
Other76 73 76 
Total Domestic20,513 19,482 17,744 
International1,899 1,863 1,400 
Total Business Insurance22,412 21,345 19,144 
Bond & Specialty Insurance:
Domestic:
Fidelity and surety1,492 1,416 1,290 
General liability1,838 1,778 1,639 
Other239 231 225 
Total Domestic3,569 3,425 3,154 
International538 533 501 
Total Bond & Specialty Insurance4,107 3,958 3,655 
Personal Insurance:
Domestic:
Automobile7,902 7,767 6,923 
Homeowners and Other8,824 8,208 7,404 
Total Domestic16,726 15,975 14,327 
International669 663 635 
Total Personal Insurance17,395 16,638 14,962 
Total earned premiums43,914 41,941 37,761 
Net investment income3,959 3,590 2,922 
Fee income495 473 433 
Other revenues508 449 353 
Total segment revenues48,876 46,453 41,469 
Net realized investment losses(48)(30)(105)
Total revenues$48,828 $46,423 $41,364 
Income reconciliation, net of tax
Total segment income$6,698 $5,370 $3,397 
Interest Expense and Other (1)
(373)(345)(325)
Core income6,325 5,025 3,072 
Net realized investment losses(37)(26)(81)
Net income$6,288 $4,999 $2,991 
______________________________________
(1)    The primary component of Interest Expense and Other was after-tax interest expense of $336 million, $310 million and $297 million in 2025, 2024 and 2023, respectively.
Asset reconciliation [Table Text Block]
(as of December 31, in millions)20252024
Asset reconciliation:
Business Insurance$106,084 $98,311 
Bond & Specialty Insurance13,676 12,628 
Personal Insurance22,787 21,138 
Total assets for reportable segments142,547 132,077 
Other assets (1)
1,161 1,112 
Total consolidated assets$143,708 $133,189 
___________________________________________
(1)    The primary components of other assets as of both December 31, 2025 and 2024, were the over-funded benefit plan assets related to the Company’s qualified domestic pension plan and other intangible assets.
Revenues of the Company's operations based on location [Table Text Block]
The following table presents revenues of the Company’s operations based on location.
(for the year ended December 31, in millions)202520242023
U.S.$46,360 $43,924 $39,086 
Non-U.S.:
Canada1,345 1,359 1,281 
Other Non-U.S.1,123 1,140 997 
Total Non-U.S.2,468 2,499 2,278 
Total revenues$48,828 $46,423 $41,364 
v3.25.4
Investments (Tables)
12 Months Ended
Dec. 31, 2025
Investments [Abstract]  
Amortized cost and fair value of investments in fixed maturities [Table Text Block]
The amortized cost and fair value of investments in fixed maturities classified as available for sale were as follows:
Amortized CostAllowance for Expected Credit LossesGross UnrealizedFair Value
(as of December 31, 2025, in millions)GainsLosses
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$3,927 $ $11 $81 $3,857 
Obligations of U.S. states, municipalities and political subdivisions:
Local general obligation21,724  161 1,096 20,789 
Revenue9,810  58 543 9,325 
State general obligation871  6 29 848 
Pre-refunded414  4 2 416 
Total obligations of U.S. states, municipalities and political subdivisions32,819  229 1,670 31,378 
Debt securities issued by foreign governments313  2 3 312 
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
13,094  268 130 13,232 
Corporate and all other bonds41,564 3 458 965 41,054 
Total (1)$91,717 $3 $968 $2,849 $89,833 
___________________________________________
(1)Excludes fixed maturities classified as held for sale of $3,221 million of amortized cost and $3,243 million of fair value as of December 31, 2025.
Amortized CostAllowance for Expected Credit LossesGross UnrealizedFair Value
(as of December 31, 2024, in millions)GainsLosses
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$5,735 $— $$169 $5,570 
Obligations of U.S. states, municipalities and political subdivisions:
Local general obligation18,604 — 23 1,604 17,023 
Revenue9,268 — 16 704 8,580 
State general obligation1,081 — 73 1,010 
Pre-refunded573 — 572 
Total obligations of U.S. states, municipalities and political subdivisions29,526 — 43 2,384 27,185 
Debt securities issued by foreign governments917 — 13 909 
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
12,888 — 53 336 12,605 
Corporate and all other bonds39,211 118 1,930 37,397 
Total$88,277 $$223 $4,832 $83,666 
Amortized cost and fair value of fixed maturities by contractual maturity [Table Text Block]
The amortized cost and fair value of fixed maturities by contractual maturity follow. Actual maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.
(as of December 31, 2025, in millions)Amortized
Cost
Fair
Value
Due in one year or less$5,902 $5,893 
Due after 1 year through 5 years21,141 20,762 
Due after 5 years through 10 years24,897 24,397 
Due after 10 years26,683 25,549 
78,623 76,601 
Mortgage-backed securities, collateralized mortgage obligations
 and pass-through securities
13,094 13,232 
Total$91,717 $89,833 
Cost and fair value of investments in equity securities [Table Text Block]
The cost and fair value of investments in equity securities were as follows:
(as of December 31, 2025, in millions)CostGross GainsGross LossesFair Value
Common stock$419 $177 $12 $584 
Non-redeemable preferred stock38 1 5 34 
Total (1)$457 $178 $17 $618 
___________________________________________
(1)Excludes equity securities classified as held for sale of $69 million of cost and $104 million of fair value as of December 31, 2025.
(as of December 31, 2024, in millions)CostGross GainsGross LossesFair Value
Common stock$500 $150 $11 $639 
Non-redeemable preferred stock44 — 48 
Total$544 $154 $11 $687 
Unrealized investment losses [Table Text Block]
The following tables summarize, for all fixed maturities classified as available for sale in an unrealized loss position as of December 31, 2025 and 2024, the aggregate fair value and gross unrealized loss by the length of time those securities have been continuously in an unrealized loss position. The fair value amounts reported in the tables are estimates that are prepared using the process described in note 4. The Company also relies upon estimates of several factors in its review and evaluation of individual investments, using the process described in note 1, in determining whether a credit loss impairment exists.
Less than 12 months12 months or longerTotal
(as of December 31, 2025, in millions)Fair
Value
Gross
Unrealized
Losses
Fair
Value
Gross
Unrealized
Losses
Fair
Value
Gross
Unrealized
Losses
Fixed maturities
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$611 $5 $1,684 $76 $2,295 $81 
Obligations of U.S. states, municipalities and political subdivisions2,234 28 16,428 1,642 18,662 1,670 
Debt securities issued by foreign governments
34  75 3 109 3 
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
437 2 1,835 128 2,272 130 
Corporate and all other bonds2,351 13 17,428 952 19,779 965 
Total$5,667 $48 $37,450 $2,801 $43,117 $2,849 
Less than 12 months12 months or longerTotal
(as of December 31, 2024, in millions)Fair
Value
Gross
Unrealized
Losses
Fair
Value
Gross
Unrealized
Losses
Fair
Value
Gross
Unrealized
Losses
Fixed maturities
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$557 $$2,830 $168 $3,387 $169 
Obligations of U.S. states, municipalities and political subdivisions8,584 160 15,007 2,224 23,591 2,384 
Debt securities issued by foreign governments
113 454 12 567 13 
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
7,359 148 1,419 188 8,778 336 
Corporate and all other bonds7,341 144 21,999 1,786 29,340 1,930 
Total $23,954 $454 $41,709 $4,378 $65,663 $4,832 
Gross unrealized investment losses on securities continuously in an unrealized loss position of greater than 20% of amortized cost by length of time [Table Text Block]
The following tables summarize, for all fixed maturities reported at fair value for which fair value was less than 80% of amortized cost as of December 31, 2025 and 2024, the gross unrealized investment loss by length of time those securities have continuously been in an unrealized loss position of greater than 20% of amortized cost.
 Period For Which Fair Value is Less Than 80% of Amortized Cost
(as of December 31, 2025, in millions)3 months or lessGreater than 3 months, 6 months or lessGreater than 6 months, 12 months or lessGreater than 12 monthsTotal
Fixed maturities
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$ $ $ $ $ 
Obligations of U.S. states, municipalities and political subdivisions18  10 550 578 
Debt securities issued by foreign governments
     
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
     
Corporate and all other bonds1  4  5 
Total$19 $ $14 $550 $583 
 Period For Which Fair Value is Less Than 80% of Amortized Cost
(as of December 31, 2024, in millions)3 months or lessGreater than 3 months, 6 months or lessGreater than 6 months, 12 months or lessGreater than 12 monthsTotal
Fixed maturities
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$— $— $— $— $— 
Obligations of U.S. states, municipalities and political subdivisions366 — 43 635 1,044 
Debt securities issued by foreign governments
— — — — — 
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
58 — — — 58 
Corporate and all other bonds13 — — 16 
Total$437 $— $43 $638 $1,118 
Credit impairment charges included in net realized investment gains (losses) [Table Text Block]
Credit impairment charges included in net realized investment losses in the consolidated statement of income were as follows:
(for the year ended December 31, in millions)202520242023
Fixed maturities
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$ $— $— 
Obligations of U.S. states, municipalities and political subdivisions — 
Debt securities issued by foreign governments — — 
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
 — — 
Corporate and all other bonds2 
Total fixed maturities$2 $$
Changes in the allowance for expected credit losses on fixed maturities classified as available for sale [Table Text Block]
The following table presents changes in the allowance for expected credit losses on fixed maturities classified as available for sale for the category of Corporate and All Other Bonds (no other categories of fixed maturities currently have an allowance for expected credit losses).
Fixed Maturities
Corporate and All Other Bonds
(in millions)As of and For the Twelve Months Ended December 31, 2025As of and For the Twelve Months Ended December 31, 2024
Balance, beginning of period$2 $
Additions for expected credit losses on securities where no credit losses were previously recognized
4 
Additions (reductions) for expected credit losses on securities where credit losses were previously recognized (1)
 Reductions due to sales/defaults of credit-impaired securities(3)(7)
Reductions for impairments of securities which the Company intends to sell or more likely than not will be required to sell  — 
Balance, end of period$3 $
Net investment income [Table Text Block]
(for the year ended December 31, in millions)202520242023
Gross investment income
Fixed maturities$3,433 $2,948 $2,472 
Equity securities21 21 18 
Short-term securities253 280 241 
Real estate investments59 70 64 
Other investments246 318 171 
Gross investment income4,012 3,637 2,966 
Investment expenses53 47 44 
Net investment income$3,959 $3,590 $2,922 
Change in net unrealized investments gains (losses) [Table Text Block]
Changes in net unrealized gains (losses) on investment securities that are included as a separate component of other comprehensive income (loss) were as follows:
(as of and for the year ended December 31, in millions)202520242023
Changes in net unrealized investment gains (losses)
Fixed maturities$2,750 $(640)$2,248 
Other investments(3)
Change in net pre-tax unrealized gains (losses) on investment securities2,747 (639)2,250 
Related tax expense (benefit)585 (128)481 
Change in net unrealized gains (losses) on investment securities2,162 (511)1,769 
Balance, beginning of year(3,640)(3,129)(4,898)
Balance, end of year$(1,478)$(3,640)$(3,129)
v3.25.4
Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2025
Fair Value Disclosures [Abstract]  
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured on a recurring basis [Table Text Block]
The following tables present the level within the fair value hierarchy at which the Company’s financial assets and financial liabilities are measured on a recurring basis.
(as of December 31, 2025, in millions)TotalLevel 1Level 2Level 3
Invested assets:
Fixed maturities
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$3,857 $3,857 $ $ 
Obligations of U.S. states, municipalities and political subdivisions31,378  31,378  
Debt securities issued by foreign governments312  312  
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
13,232  13,232  
Corporate and all other bonds41,054 25 40,698 331 
Total fixed maturities89,833 3,882 85,620 331 
Equity securities
Common stock584 576  8 
Non-redeemable preferred stock34 7 3 24 
Total equity securities618 583 3 32 
Other investments9 9   
Assets held for sale3,347 104 3,243  
Total$93,807 $4,578 $88,866 $363 
(as of December 31, 2024, in millions)TotalLevel 1Level 2Level 3
Invested assets:
Fixed maturities
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$5,570 $5,570 $— $— 
Obligations of U.S. states, municipalities and political subdivisions27,185 — 27,185 — 
Debt securities issued by foreign governments909 — 909 — 
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
12,605 — 12,602 
Corporate and all other bonds37,397 — 37,151 246 
Total fixed maturities83,666 5,570 77,847 249 
Equity securities
Common stock639 631 — 
Non-redeemable preferred stock48 16 29 
Total equity securities687 647 37 
Other investments20 20 — — 
Total$84,373 $6,237 $77,850 $286 
Changes in the Level 3 fair value category [Table Text Block]
The following tables present the changes in the Level 3 fair value category for the years ended December 31, 2025 and 2024.
(in millions)Fixed
Maturities
Equity SecuritiesOther
Investments
Total
Balance as of December 31, 2024$249 $37 $ $286 
Total realized and unrealized investment gains (losses):
Reported in net realized investment losses (1)
 (6) (6)
Reported in other comprehensive income (loss)3   3 
Purchases, sales and settlements/maturities:
Purchases 1  1 
Sales    
Settlements/maturities(51)  (51)
Gross transfers into Level 3135   135 
Gross transfers out of Level 3(5)  (5)
Balance as of December 31, 2025$331 $32 $ $363 
Amount of total realized investment gains (losses) for the period included in the consolidated statement of income attributable to changes in the fair value of assets still held at the reporting date
$ $(6)$ $(6)
___________________________________________
(1)Includes impairments on investments held at the end of the period as well as amortization on fixed maturities.
(in millions)Fixed
Maturities
Equity SecuritiesOther
Investments
Total
Balance as of December 31, 2023$258 $37 $— $295 
Total realized and unrealized investment gains (losses):
Reported in net realized investment losses (1)
— — 
Reported in other comprehensive income (loss)(1)— — (1)
Purchases, sales and settlements/maturities:
Purchases85 — 87 
Sales— (3)— (3)
Settlements/maturities(25)— — (25)
Gross transfers into Level 3— — — — 
Gross transfers out of Level 3(68)— — (68)
Balance as of December 31, 2024$249 $37 $— $286 
Amount of total realized investment gains (losses) for the period included in the consolidated statement of income attributable to changes in the fair value of assets still held at the reporting date
$— $$— $
___________________________________________
(1)Includes impairments on investments held at the end of the period as well as amortization on fixed maturities.
Carrying value and fair value of the Company's financial assets and financial liabilities disclosed, but not carried, at fair value, and the level within the fair value hierarchy at which such assets and liabilities are categorized [Table Text Block]
The following tables present the carrying value and fair value of the Company’s financial assets and financial liabilities disclosed, but not carried, at fair value, and the level within the fair value hierarchy at which such assets and liabilities are categorized.
(as of December 31, 2025, in millions)Carrying
Value
Fair
Value
Level 1Level 2Level 3
Financial assets:
Short-term securities$5,716 $5,716 $1,398 $4,267 $51 
Financial liabilities:
Debt$9,167 $8,538 $ $8,538 $ 
Commercial paper100 100  100  
(as of December 31, 2024, in millions)Carrying
Value
Fair
Value
Level 1Level 2Level 3
Financial assets:
Short-term securities$4,766 $4,766 $1,933 $2,788 $45 
Financial liabilities:
Debt$7,933 $7,095 $— $7,095 $— 
Commercial paper100 100 — 100 — 
v3.25.4
Allowance for Expected Credit Losses (Tables)
12 Months Ended
Dec. 31, 2025
Credit Loss [Abstract]  
Changes in the allowance for expected credit losses on premiums receivable [Table Text Block]
The following table presents the balances of premiums receivable, net of the allowance for expected credit losses, as of December 31, 2025 and 2024, and the changes in the allowance for expected credit losses for the twelve months ended December 31, 2025 and 2024.
As of and For the Twelve Months Ended December 31, 2025As of and For the Twelve Months Ended December 31, 2024
(in millions)Premiums Receivable, Net of Allowance for Expected Credit LossesAllowance for Expected Credit LossesPremiums Receivable, Net of Allowance for Expected Credit LossesAllowance for Expected Credit Losses
 
Balance, beginning of period$11,110 $58 $10,282 $69 
Current period change for expected credit losses65 50 
Write-offs of uncollectible premiums receivable64 61 
Less amounts classified as held for sale1 — 
Balance, end of period$10,992 $58 $11,110 $58 
Changes in the allowance for estimated uncollectible reinsurance [Table Text Block]
The following table presents the balances of reinsurance recoverables, net of the allowance for estimated uncollectible reinsurance, as of December 31, 2025 and 2024, and the changes in the allowance for estimated uncollectible reinsurance for the twelve months ended December 31, 2025 and 2024.
As of and For the Twelve Months Ended December 31, 2025As of and For the Twelve Months Ended December 31, 2024
(in millions)Reinsurance Recoverables, Net of Allowance for Estimated Uncollectible ReinsuranceAllowance for Estimated Uncollectible ReinsuranceReinsurance Recoverables, Net of Allowance for Estimated Uncollectible ReinsuranceAllowance for Estimated Uncollectible Reinsurance
 
Balance, beginning of period$8,000 $119 $8,143 $118 
Current period change for estimated uncollectible reinsurance16 
Write-offs of uncollectible reinsurance recoverables — 
Less amounts classified as held for sale6 — 
Balance, end of period$7,886 $129 $8,000 $119 
Changes in the allowance for expected credit losses on contractholder receivables [Table Text Block]
The following table presents the balances of contractholder receivables, net of the allowance for expected credit losses, as of December 31, 2025 and 2024, and the changes in the allowance for expected credit losses for the twelve months ended December 31, 2025 and 2024.
As of and For the Twelve Months Ended December 31, 2025As of and For the Twelve Months Ended December 31, 2024
(in millions)Contractholder Receivables, Net of Allowance for Expected Credit LossesAllowance for Expected Credit LossesContractholder Receivables, Net of Allowance for Expected Credit LossesAllowance for Expected Credit Losses
 
Balance, beginning of period$3,171 $18 $3,249 $20 
Current period change for expected credit losses(2)(2)
Write-offs of uncollectible contractholder receivables — 
Balance, end of period$3,010 $16 $3,171 $18 
v3.25.4
Reinsurance (Tables)
12 Months Ended
Dec. 31, 2025
Reinsurance Disclosures [Abstract]  
Summary of reinsurance financial data [Table Text Block]
The following is a summary of reinsurance financial data reflected in the consolidated statement of income.
(for the year ended December 31, in millions)202520242023
Written premiums
Direct$45,594 $44,377 $40,983 
Assumed2,136 2,173 1,989 
Ceded(3,343)(3,194)(2,771)
Total net written premiums$44,387 $43,356 $40,201 
Earned premiums
Direct$45,042 $42,983 $38,796 
Assumed2,110 2,095 1,614 
Ceded(3,238)(3,137)(2,649)
Total net earned premiums$43,914 $41,941 $37,761 
Percentage of assumed earned premiums to net earned premiums4.8 %5.0 %4.3 %
Ceded claims and claim adjustment expenses incurred$1,679 $1,249 $1,462 
Reinsurance recoverables [Table Text Block]
Reinsurance recoverables include amounts recoverable on both paid and unpaid claims and claim adjustment expenses and were as follows:
(as of December 31, in millions)20252024
Gross reinsurance recoverables on paid and unpaid claims and claim adjustment expenses$4,352 $3,962 
Gross structured settlements2,469 2,626 
Mandatory pools and associations1,485 1,531 
     Gross reinsurance recoverables8,306 8,119 
Allowance for estimated uncollectible reinsurance(135)(119)
Less amounts classified as held for sale285 — 
    Net reinsurance recoverables$7,886 $8,000 
v3.25.4
Goodwill and Other Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill by segment [Table Text Block]
The following table presents the carrying amount of the Company’s goodwill by segment. Each reportable segment includes goodwill associated with the Company’s international business which is subject to the impact of changes in foreign currency exchange rates.
(as of December 31, in millions)20252024
Business Insurance$2,601 $2,572 
Bond & Specialty Insurance838 834 
Personal Insurance809 801 
Other26 26 
Less amounts classified as held for sale208 — 
Total$4,066 $4,233 
Other intangible assets subject to amortization [Table Text Block]
The following tables present a summary of the Company’s other intangible assets by major asset class.
(as of December 31, 2025, in millions)Gross
Carrying
Amount
Accumulated
Amortization
Net
Subject to amortization
Customer-related$186 $93 $93 
Contract-based204 198 6 
Marketing-related18 6 12 
Total subject to amortization408 297 111 
Not subject to amortization226  226 
Less amounts classified as held for sale5 4 1 
Total$629 $293 $336 
(as of December 31, 2024, in millions)Gross
Carrying
Amount
Accumulated
Amortization
Net
Subject to amortization
Customer-related$185 $74 $111 
Contract-based204 196 
Marketing-related18 15 
Total subject to amortization407 273 134 
Not subject to amortization226 — 226 
Total$633 $273 $360 
Other intangible assets not subject to amortization [Table Text Block]
The following tables present a summary of the Company’s other intangible assets by major asset class.
(as of December 31, 2025, in millions)Gross
Carrying
Amount
Accumulated
Amortization
Net
Subject to amortization
Customer-related$186 $93 $93 
Contract-based204 198 6 
Marketing-related18 6 12 
Total subject to amortization408 297 111 
Not subject to amortization226  226 
Less amounts classified as held for sale5 4 1 
Total$629 $293 $336 
(as of December 31, 2024, in millions)Gross
Carrying
Amount
Accumulated
Amortization
Net
Subject to amortization
Customer-related$185 $74 $111 
Contract-based204 196 
Marketing-related18 15 
Total subject to amortization407 273 134 
Not subject to amortization226 — 226 
Total$633 $273 $360 
v3.25.4
Insurance Claim Reserves (Tables)
12 Months Ended
Dec. 31, 2025
Insurance Loss Reserves [Abstract]  
Claims and claim adjustment expense reserves [Table Text Block]
Claims and claim adjustment expense reserves were as follows:
(as of December 31, in millions)20252024
Property-casualty$67,643 $64,088 
Accident and health3 
Less amounts classified as held for sale1,909 — 
Total$65,737 $64,093 
Reconciliation of beginning and ending property casualty reserve balances for claims and claim adjustment expenses [Table Text Block]
The following table presents a reconciliation of beginning and ending property casualty reserve balances for claims and claim adjustment expenses.
(as of and for the year ended December 31, in millions)202520242023
Claims and claim adjustment expense reserves at beginning of year$64,088 $61,621 $58,643 
Less reinsurance recoverables on unpaid losses7,669 7,817 7,790 
Net reserves at beginning of year56,419 53,804 50,853 
Estimated claims and claim adjustment expenses for claims arising in the current year
28,051 27,508 26,159 
Estimated decrease in claims and claim adjustment expenses for claims arising in prior years(939)(548)(38)
Total increases27,112 26,960 26,121 
Claims and claim adjustment expense payments for claims arising in:
Current year10,606 10,924 10,852 
Prior years13,307 13,227 12,424 
Total payments23,913 24,151 23,276 
Unrealized foreign exchange (gain) loss228 (194)106 
Net reserves at end of year59,846 56,419 53,804 
Plus reinsurance recoverables on unpaid losses7,797 7,669 7,817 
Claims and claim adjustment expense reserves at end of year$67,643 $64,088 $61,621 
Summary of claims and claim adjustment expense reserves, including certain components, for the Company's major product lines by reporting segment [Table Text Block]
The following is a summary of claims and claim adjustment expense reserves, including certain components, for the Company’s major product lines by reporting segment as of December 31, 2025.
(as of December 31, 2025, in millions)Net Undiscounted
Claims and Claim
Adjustment Expense
Reserves
Discount
(Net of
Reinsurance)
Subtotal:
Net Claims and Claim Adjustment
Expense Reserves
Reinsurance
Recoverables on
Unpaid Losses (4)
Claims and Claim
Adjustment
Expense
Reserves
Business Insurance
General liability$12,063 $(121)$11,942 $1,496 $13,438 
Commercial property1,299 — 1,299 296 1,595 
Commercial multi-peril6,275 — 6,275 317 6,592 
Commercial automobile5,474 — 5,474 324 5,798 
Workers’ compensation (1)
15,560 (870)14,690 531 15,221 
Bond & Specialty Insurance
General liability2,967 — 2,967 364 3,331 
Fidelity and surety740 — 740 12 752 
Personal Insurance
Automobile4,258 — 4,258 306 4,564 
Homeowners (excluding Other)2,638 — 2,638 13 2,651 
International - Canada847 — 847 13 860 
Subtotal — claims and allocated claim adjustment expenses for the products presented in the development tables below
52,121 (991)51,130 3,672 54,802 
Other insurance contracts (2)
5,561 (5)5,556 1,763 7,319 
Unallocated loss adjustment expense reserves
3,061 — 3,061 18 3,079 
Structured settlements (3)
— — — 2,428 2,428 
Other99 — 99 (84)15 
Total property-casualty60,842 (996)59,846 7,797 67,643 
Accident and health— — — 
Less amounts classified as held for sale1,627 — 1,627 282 1,909 
Total$59,215 $(996)$58,219 $7,518 $65,737 
___________________________________________
(1)Net discount amount includes discount of $31 million on reinsurance recoverables for long-term disability and annuity claim payments.
(2)Primarily includes residual market, international (other than operations in Canada within the Personal Insurance segment) and runoff assumed reinsurance business.
(3)Includes structured settlements in cases where the Company did not receive a release from the claimant.
(4)Total reinsurance recoverables (on paid and unpaid losses) as of December 31, 2025 were $7.89 billion.
Allocated claim adjustment expense, by accident year, on a historical basis for incurred and paid claims on an undiscounted, net of reinsurance basis [Table Text Block]
Business Insurance
General Liability
(dollars in millions)
For the Years Ended December 31,
2016201720182019202020212022202320242025
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Unaudited
Accident YearIBNR Reserves Dec 31, 2025Cumulative Number of Reported Claims
2016$1,075 $1,058 $1,087 $1,187 $1,204 $1,179 $1,185 $1,183 $1,173 $1,185 $85 21,090 
20171,133 1,143 1,196 1,234 1,226 1,243 1,288 1,306 1,313 98 19,983 
20181,253 1,312 1,344 1,395 1,477 1,530 1,571 1,604 122 20,194 
20191,447 1,486 1,498 1,567 1,706 1,698 1,752 181 19,972 
20201,467 1,493 1,470 1,577 1,568 1,570 226 23,456 
20211,591 1,589 1,628 1,711 1,711 383 16,269 
20221,696 1,736 1,916 2,014 620 19,494 
20231,998 2,060 2,129 1,080 19,166 
20242,340 2,315 1,782 17,488 
20252,604 2,396 13,197 
Total$18,197 
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident YearUnaudited
2016$35 $191 $421 $649 $758 $858 $951 $991 $1,031 $1,072 
201740 180 378 552 724 914 1,029 1,111 1,172 
201842 202 441 709 939 1,146 1,270 1,367 
201951 233 482 816 1,074 1,276 1,416 Liability for Claims
202061 244 458 770 1,031 1,179 And Allocated Claim
202167 231 493 826 1,100 Adjustment Expenses,
202281 302 668 1,042 Net of Reinsurance
202354 280 597 
202455 242 2016 -Before
202528 20252016
Total$9,215 $8,982 $3,081 
Total net liability$12,063 
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
Unaudited
Years12345678910
2.9 %10.6 %15.7 %18.0 %14.0 %11.4 %8.1 %5.2 %4.0 %3.5 %
Commercial Property
(dollars in millions)
For the Years Ended December 31,
20212022202320242025
Incurred Claims and Allocated Claims Adjustment Expenses, Net of Reinsurance
Unaudited
Accident YearIBNR Reserves December 31, 2025Cumulative Number of Reported Claims
2021$1,236 $1,190 $1,190 $1,201 $1,207 $15 25,814 
20221,309 1,369 1,372 1,343 (3)28,976 
20231,268 1,244 1,219 16 29,443 
20241,474 1,434 28 28,903 
20251,417 266 22,297 
Total$6,620 
Cumulative Paid Claims and Allocated Claim
Adjustment Expenses, Net of Reinsurance
Unaudited
Liability for Claims
Accident YearAnd Allocated Claim
2021$645 $1,068 $1,141 $1,169 $1,176 Adjustment Expenses,
2022624 1,113 1,247 1,272 Net of Reinsurance
2023614 1,049 1,125 
2024702 1,193 2021 -Before
2025664 20252021
Total$5,430 $1,190 $109 
Total net liability$1,299 
Average Annual Percentage Payout of Incurred
Claims by Age, Net of Reinsurance
 Unaudited
Years12345
 49.2 %35.3 %7.4 %2.1 %0.5 %
Commercial Multi-Peril
(dollars in millions)
For the Years Ended December 31,
2016201720182019202020212022202320242025
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Unaudited
Accident YearIBNR Reserves December 31, 2025Cumulative Number of Reported Claims
2016$1,662 $1,623 $1,598 $1,590 $1,601 $1,587 $1,579 $1,578 $1,590 $1,602 $24 69,716 
20171,872 1,928 1,956 1,919 1,935 1,943 1,930 1,928 1,929 37 72,872 
20181,976 2,114 2,092 2,112 2,121 2,127 2,125 2,136 46 80,732 
20192,017 2,087 2,089 2,103 2,103 2,110 2,102 49 77,552 
20202,142 2,141 2,126 2,111 2,061 2,041 144 70,943 
20212,164 2,097 2,097 2,107 2,084 157 59,084 
20222,502 2,533 2,569 2,569 280 55,514 
20232,781 2,811 2,773 474 55,151 
20242,946 2,909 875 50,466 
20252,996 1,420 37,006 
Total$23,141 
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident YearUnaudited
2016$585 $950 $1,133 $1,278 $1,373 $1,437 $1,477 $1,510 $1,547 $1,559 
2017716 1,199 1,388 1,531 1,674 1,763 1,815 1,843 1,865 
2018792 1,302 1,500 1,669 1,815 1,917 1,986 2,021 
2019707 1,187 1,423 1,628 1,801 1,916 1,973 Liability for Claims
2020791 1,180 1,373 1,547 1,687 1,791 And Allocated Claim
2021744 1,206 1,437 1,616 1,764 Adjustment Expenses,
2022817 1,476 1,752 1,965 Net of Reinsurance
2023935 1,603 1,894 
2024906 1,539 2016 -Before
2025897 20252016
Total$17,268 $5,873 $402 
Total net liability$6,275 
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
Unaudited
Years12345678910
34.5 %23.0 %10.4 %8.5 %7.1 %4.8 %2.8 %1.7 %1.7 %0.7 %
Commercial Automobile
(dollars in millions)
For the Years Ended December 31,
20212022202320242025
Incurred Claims and Allocated Claims Adjustment
Expenses, Net of Reinsurance
Unaudited
Accident YearIBNR Reserves December 31, 2025Cumulative Number of Reported Claims
2021$1,741 $1,757 $1,786 $1,800 $1,789 $92 149,271 
20221,939 2,040 2,050 2,059 209 160,802 
20232,245 2,222 2,272 424 168,367 
20242,544 2,452 925 168,679 
20252,754 1,735 152,342 
Total$11,326 
Cumulative Paid Claims and Allocated Claim
Adjustment Expenses, Net of Reinsurance
Unaudited
Liability for Claims
Accident YearAnd Allocated Claim
2021$453 $800 $1,135 $1,405 $1,591 Adjustment Expenses,
2022540 966 1,324 1,607 Net of Reinsurance
2023589 1,006 1,394 
2024604 1,021 2021 -Before
2025572 20252021
Total$6,185 $5,141 $333 
Total net liability$5,474 
Average Annual Percentage Payout of Incurred
Claims by Age, Net of Reinsurance
Unaudited
Years12345
24.6 %18.9 %17.7 %14.4 %10.4 %
Workers’ Compensation
(dollars in millions)
For the Years Ended December 31,
2016201720182019202020212022202320242025
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Unaudited
Accident YearIBNR Reserves December 31, 2025Cumulative Number of Reported Claims
2016$2,768 $2,690 $2,569 $2,473 $2,372 $2,300 $2,235 $2,151 $2,111 $2,092 $216 132,524 
20172,779 2,681 2,584 2,483 2,439 2,342 2,243 2,190 2,167 290 130,310 
20182,744 2,687 2,599 2,503 2,416 2,318 2,245 2,194 313 132,689 
20192,680 2,714 2,699 2,632 2,521 2,424 2,355 369 129,611 
20202,559 2,530 2,433 2,271 2,152 2,025 362 102,671 
20212,356 2,349 2,294 2,237 2,166 419 96,412 
20222,293 2,294 2,226 2,148 476 103,197 
20232,373 2,365 2,371 579 98,269 
20242,352 2,344 809 95,182 
20252,356 1,379 86,579 
Total$22,218 
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident YearUnaudited
2016$421 $873 $1,118 $1,272 $1,367 $1,433 $1,486 $1,522 $1,553 $1,579 
2017433 890 1,154 1,314 1,418 1,490 1,544 1,585 1,612 
2018440 919 1,169 1,330 1,440 1,516 1,578 1,616 
2019466 951 1,229 1,402 1,518 1,593 1,639 Liability for Claims
2020389 794 1,017 1,164 1,273 1,342 And Allocated Claim
2021427 848 1,076 1,234 1,341 Adjustment Expenses,
2022388 830 1,081 1,242 Net of Reinsurance
2023444 925 1,188 
2024443 934 2016 -Before
2025430 20252016
Total$12,923 $9,295 $6,265 
Total net liability$15,560 
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
Unaudited
Years12345678910
19.3 %20.7 %11.4 %7.4 %4.9 %3.3 %2.5 %1.8 %1.4 %1.2 %
Bond & Specialty Insurance
General Liability
(dollars in millions)
For the Years Ended December 31,
2016201720182019202020212022202320242025
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Unaudited
Accident YearIBNR Reserves December 31, 2025Cumulative Number of Reported Claims
2016$512 $511 $504 $520 $514 $510 $511 $509 $512 $513 $13 4,421 
2017534 517 526 493 524 554 565 582 574 37 4,626 
2018530 548 585 595 605 612 636 624 19 4,895 
2019588 653 665 670 662 654 646 25 5,517 
2020772 753 741 698 684 673 70 5,528 
2021812 756 683 659 654 86 5,769 
2022803 763 727 689 180 5,206 
2023862 888 884 277 6,060 
20241,001 1,073 487 6,499 
20251,078 735 5,165 
Total$7,408 
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident YearUnaudited
2016$30 $141 $233 $313 $378 $446 $463 $472 $479 $480 
201738 155 262 340 404 450 488 513 530 
201849 182 290 383 458 504 559 567 
201951 189 323 410 513 554 582 Liability for Claims
202052 210 333 447 525 564 And Allocated Claim
202178 210 316 401 461 Adjustment Expenses,
202269 212 335 405 Net of Reinsurance
202390 274 435 
2024115 369 2016 -Before
2025116 20252016
Total$4,509 $2,899 $68 
Total net liability$2,967 
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
Unaudited
Years12345678910
8.9 %21.5 %18.1 %14.0 %12.1 %8.2 %5.8 %2.5 %2.1 %0.3 %
Fidelity and Surety
  
(dollars in millions)
For the Years Ended December 31,  
20212022202320242025IBNR Reserves December 31, 2025Cumulative Number of Reported Claims
Incurred Claims and Allocated Claims Adjustment
Expenses, Net of Reinsurance
Accident YearUnaudited 
2021$284 $172 $93 $87 $76 $18 612 
2022 310 261 187 148 21 757 
2023  353 374 372 83 986 
2024   363 266 164 1,049 
2025    356 320 793 
    Total$1,218   
Cumulative Paid Claims and Allocated Claim
Adjustment Expenses, Net of Reinsurance
Accident YearUnauditedLiability for Claims
And Allocated Claim
2021$25 $50 $57 $58 $57 Adjustment Expenses,
202236 82 99 118 Net of Reinsurance
202396 202 262 
202439 95 2021 -Before
202531 20252021
Total$563 $655 $85 
Total net liability$740 
Average Annual Percentage Payout of Incurred
Claims by Age, Net of Reinsurance
 Unaudited
Years12345
 21.3 %28.5 %12.1 %7.2 %(0.8)%
Personal Insurance
Automobile
(dollars in millions)
 For the Years Ended December 31,  
 20212022202320242025IBNR Reserves December 31, 2025Cumulative Number of Reported Claims
 Incurred Claims and Allocated Claims Adjustment
Expenses, Net of Reinsurance
Accident YearUnaudited 
2021$3,716 $3,770 $3,751 $3,724 $3,703 $29 1,001,126 
2022 4,755 4,784 4,729 4,686 80 1,132,092 
2023  5,206 5,133 5,032 232 1,112,458 
2024   5,179 4,988 586 1,033,917 
2025    4,770 1,487 851,578 
    Total$23,179   
Cumulative Paid Claims and Allocated Claim
Adjustment Expenses, Net of Reinsurance
Accident YearUnauditedLiability for Claims
And Allocated Claim
2021$2,062 $2,981 $3,350 $3,541 $3,628 Adjustment Expenses,
20222,683 3,855 4,278 4,485 Net of Reinsurance
20232,888 4,068 4,531 
20242,838 3,904 2021 -Before
20252,557 20252021
Total$19,105 $4,074 $184 
Total net liability$4,258 
Average Annual Percentage Payout of Incurred
Claims by Age, Net of Reinsurance
 Unaudited
Years12345
 56.2 %23.7 %9.4 %4.8 %2.4 %
Homeowners (excluding Other)
(dollars in millions)
 For the Years Ended December 31,  
 20212022202320242025IBNR Reserves December 31, 2025Cumulative Number of Reported Claims
 Incurred Claims and Allocated Claims Adjustment
Expenses, Net of Reinsurance
Accident YearUnaudited 
2021$3,463 $3,486 $3,444 $3,423 $3,397 $(3)234,160 
2022 4,277 4,184 4,146 4,145 24 236,736 
2023  5,171 5,018 4,979 70 271,119 
2024   5,021 4,915 219 239,165 
2025    5,120 1,157 153,096 
    Total$22,556   
Cumulative Paid Claims and Allocated Claim
Adjustment Expenses, Net of Reinsurance
Accident YearUnauditedLiability for Claims
And Allocated Claim
2021$2,334 $3,235 $3,344 $3,372 $3,380 Adjustment Expenses,
20222,537 3,828 4,018 4,084 Net of Reinsurance
20233,369 4,608 4,814 
20243,402 4,454 2021 -Before
20253,224 20252021
Total$19,956 $2,600 $38 
Total net liability$2,638 
Average Annual Percentage Payout of Incurred
Claims by Age, Net of Reinsurance
 Unaudited
Years12345
 66.0 %26.0 %4.0 %1.2 %0.3 %
International - Canada
(dollars in millions)
 For the Years Ended December 31,IBNR Reserves December 31, 2025Cumulative
 2016201720182019202020212022202320242025Number of
AccidentIncurred Claims and Allocated Claim Adjustment Expenses, Net of ReinsuranceReported
YearUnaudited Claims
2016$341 $386 $387 $396 $396 $395 $396 $397 $398 $399 $45,503 
2017 327 360 381 381 381 384 386 380 380 (3)46,520 
2018  415 436 438 442 445 448 445 442 (4)50,331 
2019   420 415 435 438 439 444 438 47,923 
2020    328 315 302 296 294 292 30,038 
2021     329 317 310 307 300 15 28,063 
2022      365 373 377 370 31 33,035 
2023       430 455 439 55 32,890 
2024        485 487 96 33,448 
2025         421 131 28,662 
         Total$3,968   
AccidentCumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
YearUnaudited
2016$200 $268 $292 $325 $347 $364 $376 $381 $388 $391 
2017172 243 280 303 328 348 361 369 374 
2018207 288 321 358 388 405 418 425 
2019204 273 307 344 373 398 410 Liability for Claims
2020136 183 206 225 245 255 And Allocated Claim
2021121 178 206 226 248 Adjustment Expenses,
2022159 231 260 286 Net of Reinsurance
2023193 275 310 
2024197 278 2016 -Before
2025173 20252016
Total$3,150 $818 $29 
Total net liability$847 
 Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
 Unaudited
Years12345678910
 44.4 %17.7 %8.0 %7.2 %6.7 %4.5 %3.1 %1.7 %1.4 %0.8 %
Historical average annual percentage payout of incurred claims by age of accident year [Table Text Block]
Business Insurance
General Liability
(dollars in millions)
For the Years Ended December 31,
2016201720182019202020212022202320242025
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Unaudited
Accident YearIBNR Reserves Dec 31, 2025Cumulative Number of Reported Claims
2016$1,075 $1,058 $1,087 $1,187 $1,204 $1,179 $1,185 $1,183 $1,173 $1,185 $85 21,090 
20171,133 1,143 1,196 1,234 1,226 1,243 1,288 1,306 1,313 98 19,983 
20181,253 1,312 1,344 1,395 1,477 1,530 1,571 1,604 122 20,194 
20191,447 1,486 1,498 1,567 1,706 1,698 1,752 181 19,972 
20201,467 1,493 1,470 1,577 1,568 1,570 226 23,456 
20211,591 1,589 1,628 1,711 1,711 383 16,269 
20221,696 1,736 1,916 2,014 620 19,494 
20231,998 2,060 2,129 1,080 19,166 
20242,340 2,315 1,782 17,488 
20252,604 2,396 13,197 
Total$18,197 
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident YearUnaudited
2016$35 $191 $421 $649 $758 $858 $951 $991 $1,031 $1,072 
201740 180 378 552 724 914 1,029 1,111 1,172 
201842 202 441 709 939 1,146 1,270 1,367 
201951 233 482 816 1,074 1,276 1,416 Liability for Claims
202061 244 458 770 1,031 1,179 And Allocated Claim
202167 231 493 826 1,100 Adjustment Expenses,
202281 302 668 1,042 Net of Reinsurance
202354 280 597 
202455 242 2016 -Before
202528 20252016
Total$9,215 $8,982 $3,081 
Total net liability$12,063 
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
Unaudited
Years12345678910
2.9 %10.6 %15.7 %18.0 %14.0 %11.4 %8.1 %5.2 %4.0 %3.5 %
Commercial Property
(dollars in millions)
For the Years Ended December 31,
20212022202320242025
Incurred Claims and Allocated Claims Adjustment Expenses, Net of Reinsurance
Unaudited
Accident YearIBNR Reserves December 31, 2025Cumulative Number of Reported Claims
2021$1,236 $1,190 $1,190 $1,201 $1,207 $15 25,814 
20221,309 1,369 1,372 1,343 (3)28,976 
20231,268 1,244 1,219 16 29,443 
20241,474 1,434 28 28,903 
20251,417 266 22,297 
Total$6,620 
Cumulative Paid Claims and Allocated Claim
Adjustment Expenses, Net of Reinsurance
Unaudited
Liability for Claims
Accident YearAnd Allocated Claim
2021$645 $1,068 $1,141 $1,169 $1,176 Adjustment Expenses,
2022624 1,113 1,247 1,272 Net of Reinsurance
2023614 1,049 1,125 
2024702 1,193 2021 -Before
2025664 20252021
Total$5,430 $1,190 $109 
Total net liability$1,299 
Average Annual Percentage Payout of Incurred
Claims by Age, Net of Reinsurance
 Unaudited
Years12345
 49.2 %35.3 %7.4 %2.1 %0.5 %
Commercial Multi-Peril
(dollars in millions)
For the Years Ended December 31,
2016201720182019202020212022202320242025
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Unaudited
Accident YearIBNR Reserves December 31, 2025Cumulative Number of Reported Claims
2016$1,662 $1,623 $1,598 $1,590 $1,601 $1,587 $1,579 $1,578 $1,590 $1,602 $24 69,716 
20171,872 1,928 1,956 1,919 1,935 1,943 1,930 1,928 1,929 37 72,872 
20181,976 2,114 2,092 2,112 2,121 2,127 2,125 2,136 46 80,732 
20192,017 2,087 2,089 2,103 2,103 2,110 2,102 49 77,552 
20202,142 2,141 2,126 2,111 2,061 2,041 144 70,943 
20212,164 2,097 2,097 2,107 2,084 157 59,084 
20222,502 2,533 2,569 2,569 280 55,514 
20232,781 2,811 2,773 474 55,151 
20242,946 2,909 875 50,466 
20252,996 1,420 37,006 
Total$23,141 
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident YearUnaudited
2016$585 $950 $1,133 $1,278 $1,373 $1,437 $1,477 $1,510 $1,547 $1,559 
2017716 1,199 1,388 1,531 1,674 1,763 1,815 1,843 1,865 
2018792 1,302 1,500 1,669 1,815 1,917 1,986 2,021 
2019707 1,187 1,423 1,628 1,801 1,916 1,973 Liability for Claims
2020791 1,180 1,373 1,547 1,687 1,791 And Allocated Claim
2021744 1,206 1,437 1,616 1,764 Adjustment Expenses,
2022817 1,476 1,752 1,965 Net of Reinsurance
2023935 1,603 1,894 
2024906 1,539 2016 -Before
2025897 20252016
Total$17,268 $5,873 $402 
Total net liability$6,275 
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
Unaudited
Years12345678910
34.5 %23.0 %10.4 %8.5 %7.1 %4.8 %2.8 %1.7 %1.7 %0.7 %
Commercial Automobile
(dollars in millions)
For the Years Ended December 31,
20212022202320242025
Incurred Claims and Allocated Claims Adjustment
Expenses, Net of Reinsurance
Unaudited
Accident YearIBNR Reserves December 31, 2025Cumulative Number of Reported Claims
2021$1,741 $1,757 $1,786 $1,800 $1,789 $92 149,271 
20221,939 2,040 2,050 2,059 209 160,802 
20232,245 2,222 2,272 424 168,367 
20242,544 2,452 925 168,679 
20252,754 1,735 152,342 
Total$11,326 
Cumulative Paid Claims and Allocated Claim
Adjustment Expenses, Net of Reinsurance
Unaudited
Liability for Claims
Accident YearAnd Allocated Claim
2021$453 $800 $1,135 $1,405 $1,591 Adjustment Expenses,
2022540 966 1,324 1,607 Net of Reinsurance
2023589 1,006 1,394 
2024604 1,021 2021 -Before
2025572 20252021
Total$6,185 $5,141 $333 
Total net liability$5,474 
Average Annual Percentage Payout of Incurred
Claims by Age, Net of Reinsurance
Unaudited
Years12345
24.6 %18.9 %17.7 %14.4 %10.4 %
Workers’ Compensation
(dollars in millions)
For the Years Ended December 31,
2016201720182019202020212022202320242025
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Unaudited
Accident YearIBNR Reserves December 31, 2025Cumulative Number of Reported Claims
2016$2,768 $2,690 $2,569 $2,473 $2,372 $2,300 $2,235 $2,151 $2,111 $2,092 $216 132,524 
20172,779 2,681 2,584 2,483 2,439 2,342 2,243 2,190 2,167 290 130,310 
20182,744 2,687 2,599 2,503 2,416 2,318 2,245 2,194 313 132,689 
20192,680 2,714 2,699 2,632 2,521 2,424 2,355 369 129,611 
20202,559 2,530 2,433 2,271 2,152 2,025 362 102,671 
20212,356 2,349 2,294 2,237 2,166 419 96,412 
20222,293 2,294 2,226 2,148 476 103,197 
20232,373 2,365 2,371 579 98,269 
20242,352 2,344 809 95,182 
20252,356 1,379 86,579 
Total$22,218 
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident YearUnaudited
2016$421 $873 $1,118 $1,272 $1,367 $1,433 $1,486 $1,522 $1,553 $1,579 
2017433 890 1,154 1,314 1,418 1,490 1,544 1,585 1,612 
2018440 919 1,169 1,330 1,440 1,516 1,578 1,616 
2019466 951 1,229 1,402 1,518 1,593 1,639 Liability for Claims
2020389 794 1,017 1,164 1,273 1,342 And Allocated Claim
2021427 848 1,076 1,234 1,341 Adjustment Expenses,
2022388 830 1,081 1,242 Net of Reinsurance
2023444 925 1,188 
2024443 934 2016 -Before
2025430 20252016
Total$12,923 $9,295 $6,265 
Total net liability$15,560 
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
Unaudited
Years12345678910
19.3 %20.7 %11.4 %7.4 %4.9 %3.3 %2.5 %1.8 %1.4 %1.2 %
Bond & Specialty Insurance
General Liability
(dollars in millions)
For the Years Ended December 31,
2016201720182019202020212022202320242025
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Unaudited
Accident YearIBNR Reserves December 31, 2025Cumulative Number of Reported Claims
2016$512 $511 $504 $520 $514 $510 $511 $509 $512 $513 $13 4,421 
2017534 517 526 493 524 554 565 582 574 37 4,626 
2018530 548 585 595 605 612 636 624 19 4,895 
2019588 653 665 670 662 654 646 25 5,517 
2020772 753 741 698 684 673 70 5,528 
2021812 756 683 659 654 86 5,769 
2022803 763 727 689 180 5,206 
2023862 888 884 277 6,060 
20241,001 1,073 487 6,499 
20251,078 735 5,165 
Total$7,408 
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident YearUnaudited
2016$30 $141 $233 $313 $378 $446 $463 $472 $479 $480 
201738 155 262 340 404 450 488 513 530 
201849 182 290 383 458 504 559 567 
201951 189 323 410 513 554 582 Liability for Claims
202052 210 333 447 525 564 And Allocated Claim
202178 210 316 401 461 Adjustment Expenses,
202269 212 335 405 Net of Reinsurance
202390 274 435 
2024115 369 2016 -Before
2025116 20252016
Total$4,509 $2,899 $68 
Total net liability$2,967 
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
Unaudited
Years12345678910
8.9 %21.5 %18.1 %14.0 %12.1 %8.2 %5.8 %2.5 %2.1 %0.3 %
Fidelity and Surety
  
(dollars in millions)
For the Years Ended December 31,  
20212022202320242025IBNR Reserves December 31, 2025Cumulative Number of Reported Claims
Incurred Claims and Allocated Claims Adjustment
Expenses, Net of Reinsurance
Accident YearUnaudited 
2021$284 $172 $93 $87 $76 $18 612 
2022 310 261 187 148 21 757 
2023  353 374 372 83 986 
2024   363 266 164 1,049 
2025    356 320 793 
    Total$1,218   
Cumulative Paid Claims and Allocated Claim
Adjustment Expenses, Net of Reinsurance
Accident YearUnauditedLiability for Claims
And Allocated Claim
2021$25 $50 $57 $58 $57 Adjustment Expenses,
202236 82 99 118 Net of Reinsurance
202396 202 262 
202439 95 2021 -Before
202531 20252021
Total$563 $655 $85 
Total net liability$740 
Average Annual Percentage Payout of Incurred
Claims by Age, Net of Reinsurance
 Unaudited
Years12345
 21.3 %28.5 %12.1 %7.2 %(0.8)%
Personal Insurance
Automobile
(dollars in millions)
 For the Years Ended December 31,  
 20212022202320242025IBNR Reserves December 31, 2025Cumulative Number of Reported Claims
 Incurred Claims and Allocated Claims Adjustment
Expenses, Net of Reinsurance
Accident YearUnaudited 
2021$3,716 $3,770 $3,751 $3,724 $3,703 $29 1,001,126 
2022 4,755 4,784 4,729 4,686 80 1,132,092 
2023  5,206 5,133 5,032 232 1,112,458 
2024   5,179 4,988 586 1,033,917 
2025    4,770 1,487 851,578 
    Total$23,179   
Cumulative Paid Claims and Allocated Claim
Adjustment Expenses, Net of Reinsurance
Accident YearUnauditedLiability for Claims
And Allocated Claim
2021$2,062 $2,981 $3,350 $3,541 $3,628 Adjustment Expenses,
20222,683 3,855 4,278 4,485 Net of Reinsurance
20232,888 4,068 4,531 
20242,838 3,904 2021 -Before
20252,557 20252021
Total$19,105 $4,074 $184 
Total net liability$4,258 
Average Annual Percentage Payout of Incurred
Claims by Age, Net of Reinsurance
 Unaudited
Years12345
 56.2 %23.7 %9.4 %4.8 %2.4 %
Homeowners (excluding Other)
(dollars in millions)
 For the Years Ended December 31,  
 20212022202320242025IBNR Reserves December 31, 2025Cumulative Number of Reported Claims
 Incurred Claims and Allocated Claims Adjustment
Expenses, Net of Reinsurance
Accident YearUnaudited 
2021$3,463 $3,486 $3,444 $3,423 $3,397 $(3)234,160 
2022 4,277 4,184 4,146 4,145 24 236,736 
2023  5,171 5,018 4,979 70 271,119 
2024   5,021 4,915 219 239,165 
2025    5,120 1,157 153,096 
    Total$22,556   
Cumulative Paid Claims and Allocated Claim
Adjustment Expenses, Net of Reinsurance
Accident YearUnauditedLiability for Claims
And Allocated Claim
2021$2,334 $3,235 $3,344 $3,372 $3,380 Adjustment Expenses,
20222,537 3,828 4,018 4,084 Net of Reinsurance
20233,369 4,608 4,814 
20243,402 4,454 2021 -Before
20253,224 20252021
Total$19,956 $2,600 $38 
Total net liability$2,638 
Average Annual Percentage Payout of Incurred
Claims by Age, Net of Reinsurance
 Unaudited
Years12345
 66.0 %26.0 %4.0 %1.2 %0.3 %
International - Canada
(dollars in millions)
 For the Years Ended December 31,IBNR Reserves December 31, 2025Cumulative
 2016201720182019202020212022202320242025Number of
AccidentIncurred Claims and Allocated Claim Adjustment Expenses, Net of ReinsuranceReported
YearUnaudited Claims
2016$341 $386 $387 $396 $396 $395 $396 $397 $398 $399 $45,503 
2017 327 360 381 381 381 384 386 380 380 (3)46,520 
2018  415 436 438 442 445 448 445 442 (4)50,331 
2019   420 415 435 438 439 444 438 47,923 
2020    328 315 302 296 294 292 30,038 
2021     329 317 310 307 300 15 28,063 
2022      365 373 377 370 31 33,035 
2023       430 455 439 55 32,890 
2024        485 487 96 33,448 
2025         421 131 28,662 
         Total$3,968   
AccidentCumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
YearUnaudited
2016$200 $268 $292 $325 $347 $364 $376 $381 $388 $391 
2017172 243 280 303 328 348 361 369 374 
2018207 288 321 358 388 405 418 425 
2019204 273 307 344 373 398 410 Liability for Claims
2020136 183 206 225 245 255 And Allocated Claim
2021121 178 206 226 248 Adjustment Expenses,
2022159 231 260 286 Net of Reinsurance
2023193 275 310 
2024197 278 2016 -Before
2025173 20252016
Total$3,150 $818 $29 
Total net liability$847 
 Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
 Unaudited
Years12345678910
 44.4 %17.7 %8.0 %7.2 %6.7 %4.5 %3.1 %1.7 %1.4 %0.8 %
v3.25.4
Debt (Tables)
12 Months Ended
Dec. 31, 2025
Debt Disclosure [Abstract]  
Debt outstanding [Table Text Block]
Debt outstanding was as follows:
(as of December 31, in millions)20252024
Short-term:
Commercial paper$100 $100 
7.75% Senior notes due April 15, 20261
200  
Total short-term debt300 100 
Long-term:
7.75% Senior notes due April 15, 20261
 200 
7.625% Junior subordinated debentures due December 15, 2027 (effective interest rate 6.147%)
125 125 
6.375% Senior notes due March 15, 20331
500 500 
5.05% Senior notes due July 24, 20351
500 — 
6.75% Senior notes due June 20, 20361
400 400 
6.25% Senior notes due June 15, 20371
800 800 
5.35% Senior notes due November 1, 20401
750 750 
4.60% Senior notes due August 1, 20431
500 500 
4.30% Senior notes due August 25, 20451
400 400 
8.50% Junior subordinated debentures due December 15, 2045 (effective interest rate 6.362%)
56 56 
3.75% Senior notes due May 15, 20461
500 500 
8.312% Junior subordinated debentures due July 1, 2046 (effective interest rate 6.362%)
73 73 
4.00% Senior notes due May 30, 20471
700 700 
4.05% Senior notes due March 7, 20481
500 500 
4.10% Senior notes due March 4, 20491
500 500 
2.55% Senior notes due April 27, 20501
500 500 
3.05% Senior notes due June 8, 20511
750 750 
5.45% Senior notes due May 25, 20531
750 750 
5.70% Senior notes due July 24, 20551
750 — 
Total long-term debt9,054 8,004 
Total debt principal9,354 8,104 
Unamortized fair value adjustment31 34 
Unamortized debt issuance costs(118)(105)
Total debt$9,267 $8,033 
________________________________________________________
(1)The effective interest rate to maturity does not differ materially from the issued rate.
Merger-related unamortized fair value adjustments [Table Text Block]
The following table presents merger-related unamortized fair value adjustments.
Unamortized Fair Value
Purchase Adjustment at December 31,
(in millions)Issue RateMaturity Date20252024
Junior subordinated debentures7.625 %Dec. 2027$3 $
8.500 %Dec. 204513 13 
8.312 %Jul. 204615 16 
Total$31 $34 
v3.25.4
Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Income (Loss) (Tables)
12 Months Ended
Dec. 31, 2025
Other Comprehensive Income And Accumulated Other Comprehensive Income Disclosure [Abstract]  
Changes in accumulated other comprehensive income (loss) (AOCI) [Table Text Block]
The following table presents the changes in the Company’s accumulated other comprehensive income (loss) (AOCI) for the years ended December 31, 2025, 2024 and 2023.
Changes in Net Unrealized Gains (Losses) on
Investment Securities
(in millions)Having No Credit
Losses Recognized in
the Consolidated
Statement of Income
Having Credit Losses
Recognized in the
Consolidated
Statement of Income
Net Benefit Plan Assets and
Obligations
Recognized in
Shareholders’ Equity
Net Unrealized
Foreign Currency
Translation
Total Accumulated
Other
Comprehensive
Income (Loss)
Balance, December 31, 2022$(5,077)$179 $(542)$(1,005)$(6,445)
Other comprehensive income (loss) (OCI) before reclassifications, net of tax
1,692 94 121 1,908 
Amounts reclassified from AOCI, net of tax
76 — (10)— 66 
Net OCI, current period1,768 84 121 1,974 
Balance, December 31, 2023(3,309)180 (458)(884)(4,471)
OCI before reclassifications, net of tax
(619)238 (219)(596)
Amounts reclassified from AOCI, net of tax
104 — (4)— 100 
Net OCI, current period(515)234 (219)(496)
Balance, December 31, 2024(3,824)184 (224)(1,103)(4,967)
OCI before reclassifications, net of tax
2,105 2 74 231 2,412 
Amounts reclassified from AOCI, net of tax
55    55 
Net OCI, current period2,160 2 74 231 2,467 
Balance, December 31, 2025$(1,664)$186 $(150)$(872)$(2,500)
Pre-tax components of other comprehensive income (loss) and the related income tax expense (benefit) for each component [Table Text Block]
The following table presents the pre-tax components of the Company’s other comprehensive income (loss) and the related income tax expense (benefit).
(for the year ended December 31, in millions)202520242023
Changes in net unrealized gains (losses) on investment securities:
Having no credit losses recognized in the consolidated statement of income
$2,744 $(644)$2,249 
Income tax expense (benefit)584 (129)481 
Net of taxes2,160 (515)1,768 
Having credit losses recognized in the consolidated statement of income3 
Income tax expense1 — 
Net of taxes2 
Net changes in benefit plan assets and obligations94 296 106 
Income tax expense20 62 22 
Net of taxes74 234 84 
Net changes in unrealized foreign currency translation246 (232)138 
Income tax expense (benefit)15 (13)17 
Net of taxes231 (219)121 
Total other comprehensive income (loss)3,087 (575)2,494 
Income tax expense (benefit)620 (79)520 
Total other comprehensive income (loss), net of taxes$2,467 $(496)$1,974 
Pre-tax and related income tax (expense) benefit components of the amounts reclassified from AOCI to the consolidated statement of income [Table Text Block]
The following table presents the pre-tax and related income tax (expense) benefit components of the amounts reclassified from the Company’s AOCI to the Company’s consolidated statement of income.
(for the year ended December 31, in millions)202520242023
Reclassification adjustments related to unrealized gains (losses) on investment securities:
Having no credit losses recognized in the consolidated statement of income (1)
$69 $131 $96 
Income tax benefit (2)
14 27 20 
Net of taxes55 104 76 
Having credit losses recognized in the consolidated statement of income (1)
 — — 
Income tax benefit (2)
 — — 
Net of taxes — — 
Reclassification adjustment related to benefit plan assets and obligations:
Claims and claim adjustment expenses (benefit) (3)
 (2)(5)
General and administrative expenses (benefit) (3)
 (3)(8)
Total
 (5)(13)
Income tax (expense) benefit (2)
 (1)(3)
Net of taxes (4)(10)
Reclassification adjustment related to foreign currency translation (1)
 — — 
Income tax benefit (2)
 — — 
Net of taxes — — 
Total reclassifications69 126 83 
Total income tax benefit14 26 17 
Total reclassifications, net of taxes$55 $100 $66 
___________________________________________
(1)(Increases) decreases net realized investment losses on the consolidated statement of income.
(2)(Increases) decreases income tax expense on the consolidated statement of income.
(3)Increases (decreases) expenses on the consolidated statement of income.
v3.25.4
Earnings per Share (Table)
12 Months Ended
Dec. 31, 2025
Earnings Per Share Reconciliation [Abstract]  
Earnings per share reconciliation [Table Text Block]
The following is a reconciliation of the income and share data used in the basic and diluted earnings per share computations.
(for the year ended December 31, in millions, except per share amounts)202520242023
Basic and Diluted
Net income, as reported$6,288 $4,999 $2,991 
Participating share-based awards — allocated income(46)(38)(22)
Net income available to common shareholders — basic and diluted$6,242 $4,961 $2,969 
Common Shares
Basic
Weighted average shares outstanding224.2 228.0 229.7 
Diluted
Weighted average shares outstanding224.2 228.0 229.7 
Weighted average effects of dilutive securities:
Stock options and performance shares3.4 3.1 2.5 
Total227.6 231.1 232.2 
Net income Per Common Share
Basic$27.83 $21.76 $12.93 
Diluted$27.43 $21.47 $12.79 
v3.25.4
Income Taxes (Tables)
12 Months Ended
Dec. 31, 2025
Income Tax Disclosure [Abstract]  
Composition of income tax expense (benefit) included in consolidated statement of income and shareholders' equity [Table Text Block]
The following table presents the components of the Company’s U.S. federal and state, as well as foreign income tax expense (benefit) included in the amounts reported in the Company’s consolidated financial statements.
(for the year ended December 31, in millions)202520242023
Composition of income tax expense included in the consolidated statement of income
Current expense:
Federal$1,171 $1,252 $477 
Foreign89 70 20 
State17 14 
Total current tax expense1,277 1,336 504 
Deferred expense (benefit):
Federal210 (152)(163)
Foreign21 (3)39 
Total deferred tax expense (benefit)231 (155)(124)
Total income tax expense included in the consolidated
 statement of income
1,508 1,181 380 
Composition of income tax expense (benefit) included
 in shareholders’ equity
Expense (benefit) relating to changes in the unrealized gain (loss) on investments, unrealized loss on foreign exchange and other items in other comprehensive income (loss)620 (79)520 
Total income tax expense included in the
 consolidated financial statements
$2,128 $1,102 $900 
Effective tax rate [Table Text Block]
The following is a reconciliation of income tax expense at the U.S. federal statutory income tax rate to the income tax expense reported in the Company’s consolidated statement of income.
2025
(for the year ended December 31, in millions)AmountPercentage
Income before income taxes
Federal$7,372 
Foreign424 
Total income before income taxes7,796 
Effective tax rate
Federal statutory tax rate21 %
Federal statutory income tax rate1,637 21.0 %
Nontaxable or nondeductible items
Nontaxable investment income(129)(1.7)%
Other(22)(0.3)%
Other adjustments, net22 0.3 %
Effective tax rate$1,508 19.3 %
(for the year ended December 31, in millions)20242023
Income before income taxes
U.S.$5,947 $3,122 
Foreign233 249 
Total income before income taxes6,180 3,371 
Effective tax rate
Statutory tax rate21 %21 %
Expected federal income tax expense1,298 708 
Tax effect of:
Nontaxable investment income(122)(132)
Audit reserve(205)
Other, net(4)
Total income tax expense$1,181 $380 
Effective tax rate19 %11 %
Income taxes paid [Table Text Block]
(for the year ended December 31, in millions)2025
Income taxes paid:
Federal$1,159 
Foreign:
United Kingdom65 
Other33 
Total foreign98 
State17 
Total income taxes paid$1,274 
Deferred tax assets and liabilities [Table Text Block]
The net deferred tax asset comprises the tax effects of temporary differences related to the following assets and liabilities.
(as of December 31, in millions)20252024
Deferred tax assets
Investments$61 $659 
Claims and claim adjustment expense reserves780 708 
Unearned premium reserves854 833 
Internally developed software 303 
Other247 261 
Total gross deferred tax assets1,942 2,764 
Less: valuation allowance47 38 
Adjusted gross deferred tax assets1,895 2,726 
Deferred tax liabilities
Deferred acquisition costs691 673 
Intangibles90 87 
Depreciation114 118 
Internally developed software8 — 
Other63 86 
Total gross deferred tax liabilities966 964 
Less amounts classified as held for sale42 — 
Net deferred tax asset$887 $1,762 
Net operating loss amounts by jurisdiction and year of expiration [Table Text Block] The NOL amounts by jurisdiction and year of expiration are as follows:
(in millions)AmountYear of 
expiration
United States$21 2035-2036
Canada$125 2035-2045
Republic of Ireland$115 None
United Kingdom$104 None
Reconciliation of unrecognized tax benefits [Table Text Block]
The following is a reconciliation of the beginning and ending amount of unrecognized tax benefits for the years ended December 31, 2025 and 2024.
(in millions)20252024
Balance as of January 1$17 $14 
Additions for tax positions of prior years 
Reductions for tax positions of prior years(1)(1)
Additions based on tax positions related to current year3 
Expiration of statute of limitations(3)(1)
Balance as of December 31$16 $17 
v3.25.4
Share-Based Incentive Compensation (Tables)
12 Months Ended
Dec. 31, 2025
Share-Based Payment Arrangement [Abstract]  
Assumptions used in estimating fair value of options on grant date [Table Text Block] The following table provides information about options granted:
(for the year ended December 31,)202520242023
Assumptions used in estimating fair value of options on grant date
Expected term of stock options6 years6 years6 years
Expected volatility of Company’s stock26.22 %25.80 %
25.63% - 25.99%
Weighted average volatility26.22 %25.80 %25.63 %
Expected annual dividend per share$4.20$4.00$3.72
Risk-free rate4.39 %3.99 %
3.63% - 3.89%
Additional information
Weighted average grant-date fair value of
 options granted (per share)
$68.92 $56.45 $47.77 
Total intrinsic value of options exercised
 during the year (in millions)
$186 $205 $58 
Additional information regarding option grants [Table Text Block] The following table provides information about options granted:
(for the year ended December 31,)202520242023
Assumptions used in estimating fair value of options on grant date
Expected term of stock options6 years6 years6 years
Expected volatility of Company’s stock26.22 %25.80 %
25.63% - 25.99%
Weighted average volatility26.22 %25.80 %25.63 %
Expected annual dividend per share$4.20$4.00$3.72
Risk-free rate4.39 %3.99 %
3.63% - 3.89%
Additional information
Weighted average grant-date fair value of
 options granted (per share)
$68.92 $56.45 $47.77 
Total intrinsic value of options exercised
 during the year (in millions)
$186 $205 $58 
Summary of stock option activity under the Company's 2023 Incentive Plan and legacy share-based incentive compensation plans [Table Text Block]
A summary of stock option activity under the 2023 Incentive Plan and the legacy plans as of and for the year ended December 31, 2025 is as follows:
Stock Option ActivityNumberWeighted
Average
Exercise
Price
Weighted
Average
Contractual
Life
Remaining
Aggregate
Intrinsic
Value
($ in millions)
Outstanding, beginning of year7,005,747 $153.89 
Original grants648,808 244.06 
Exercised(1,405,737)136.09 
Forfeited or expired(54,162)212.45 
Outstanding, end of year6,194,656 $166.86 5.5 years$763 
Vested at end of year (1)
5,557,170 $161.26 5.2 years$716 
Exercisable at end of year4,142,265 $143.68 4.3 years$606 
___________________________________________
(1)Represents awards for which the requisite service has been rendered, including those that are retirement eligible.
Assumptions used in estimating fair value of performance awards on grant date [Table Text Block] The following table provides a summary of the assumptions used in estimating the fair value of the 2025 performance awards on grant date:
Assumptions used in estimating fair value of performance awards on grant date2025
Expected term2.9 years
Expected volatility28.16 %
Expected dividend yield0.00 %
Risk-free interest rate4.20 %
Summary of restricted stock units, deferred stock units and performance share activity [Table Text Block]
A summary of restricted stock units, deferred stock units and performance share activity under the 2023 Incentive Plan and the legacy plans as of and for the year ended December 31, 2025 is as follows:
Restricted and Deferred Stock
Units
Performance Shares
Restricted Stock and Performance Share ActivityNumberWeighted
Average
Grant-Date
Fair Value
NumberWeighted Average
Grant-Date Fair
Value
Nonvested, beginning of year1,100,989 $192.83 1,155,648 $200.66 
Granted493,676 247.31 252,956 (1)251.19 
Vested(451,967)(2)196.26 (582,010)(3)189.02 
Forfeited(81,137)210.93 (18,078)216.75 
Performance-based adjustment— — 234,724 (4)229.56 
Nonvested, end of year1,061,561 $215.33 1,043,240 $225.63 
___________________________________________
(1)Represents the number of performance shares at target ROE at date of grant. The weighted average grant date fair value assumes attaining 100% of the performance shares granted.
(2)Represents the number of awards for which the requisite service has been rendered.
(3)Represents the number of performance shares attributable to the performance goals attained over the completed performance period (three years) and for which service conditions have been met.
(4)Represents the current year change in estimated performance shares to reflect the attainment of performance goals for the awards that were granted in each of the years 2023 through 2025. Because the 2025 award is subject to both a performance and market-based condition modifier, the estimated fair value of the award is updated from the grant date fair value to reflect the estimation of the impact of the award’s market-based modifier.
v3.25.4
Pension Plans, Retirement Benefits and Savings Plans (Tables)
12 Months Ended
Dec. 31, 2025
Retirement Benefits [Abstract]  
Summary of the funded status, obligations and amounts recognized in the consolidated balance sheet for the Company's benefit plans [Table Text Block]
The following tables summarize the funded status, obligations and amounts recognized in the consolidated balance sheet for the Company’s benefit plans. The Company uses a December 31 measurement date for its pension and postretirement benefit plans.
(as of and for the year ended December 31,  in millions)Qualified Domestic
Pension Plan
Nonqualified and Foreign
Pension Plans
Total
202520242025202420252024
Change in projected benefit obligation:
Benefit obligation as of beginning of year$3,245 $3,454 $186 $184 $3,431 $3,638 
Benefits earned110 111 4 114 116 
Interest cost on benefit obligation167 163 9 176 172 
Actuarial (gain) loss127 (159)4 131 (155)
Benefits paid(234)(324)(13)(14)(247)(338)
Foreign currency exchange rate change
 — 5 (2)5 (2)
Benefit obligation as of end of year$3,415 $3,245 $195 $186 $3,610 $3,431 
Change in plan assets:
Fair value of plan assets as of beginning of year$4,234 $4,149 $100 $97 $4,334 $4,246 
Actual return on plan assets501 409 4 505 417 
Company contributions — 10 12 10 12 
Benefits paid(234)(324)(13)(14)(247)(338)
Foreign currency exchange rate change
 — 7 (3)7 (3)
Fair value of plan assets as of end
 of year
4,501 4,234 108 100 4,609 4,334 
Funded status of plan as of end
 of year
$1,086 $989 $(87)$(86)$999 $903 
Amounts recognized in the consolidated balance sheet consist of:
Accrued over-funded benefit plan assets
$1,086 $989 $38 $32 $1,124 $1,021 
Accrued under-funded benefit plan liabilities
 — (125)(118)(125)(118)
Total$1,086 $989 $(87)$(86)$999 $903 
Amounts recognized in accumulated other comprehensive loss consist of:
Net actuarial loss$268 $381 $20 $14 $288 $395 
Prior service cost (benefit) — 1 1 
Total$268 $381 $21 $15 $289 $396 
Postretirement
Benefit Plans
(as of and for the year ended December 31, in millions)20252024
Change in accumulated benefit obligation:
Benefit obligation as of beginning of year$62 $92 
Benefits earned — 
Interest cost on benefit obligation3 
Actuarial gain (28)
Benefits paid(2)(5)
Foreign currency exchange rate change1 (1)
Benefit obligation as of end of year$64 $62 
Change in plan assets:
Fair value of plan assets as of beginning of year$6 $
Actual return on plan assets1 — 
Company contributions1 
Benefits paid(2)(5)
Fair value of plan assets as of end of year6 
Funded status of plan as of end of year$(58)$(56)
Amounts recognized in the consolidated balance sheet consist of:
Accrued under-funded benefit plan liability$(58)$(56)
Amounts recognized in accumulated other comprehensive loss consist of:
Net actuarial gain$(98)$(110)
Prior service benefit(2)(4)
Total$(100)$(114)
Summary of the components of net periodic benefit cost (benefit) and other amounts recognized in other comprehensive income (loss) related to the benefit plans [Table Text Block]
The following table summarizes the components of net periodic benefit cost (benefit) and other amounts recognized in other comprehensive income (loss) related to the benefit plans.
Pension PlansPostretirement Benefit
Plans
(for the year ended December 31, in millions)202520242023202520242023
Net Periodic Benefit Cost (Benefit):
Service cost$114 $116 $108 $ $— $— 
Non-service cost (benefit):
Interest cost on benefit obligation176 172 176 3 
Expected return on plan assets(281)(298)(311)(1)— — 
Amortization of unrecognized:
Prior service benefit — (1)(2)(3)(3)
Net actuarial (gain) loss14 — (12)(9)(9)
Total non-service cost (benefit)(91)(119)(136)(12)(8)(7)
Net periodic benefit cost (benefit)23 (3)(28)(12)(8)(7)
Other Changes in Benefit Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss):
Prior service benefit — —  — — 
Net actuarial gain(93)(274)(114) (28)(6)
Foreign currency exchange rate change — —  — 
Amortization of prior service benefit — 2 
Amortization of net actuarial gain (loss)(14)(7)— 12 
Total other changes recognized in other comprehensive income (loss)(107)(281)(113)14 (15)
Total other changes recognized in net periodic benefit cost (benefit) and other comprehensive income (loss)$(84)$(284)$(141)$2 $(23)$(1)
The following table indicates the line items in which the respective service cost and non-service cost (benefit) are presented in the consolidated statement of income for the years ended December 31, 2025, 2024 and 2023.
 Pension PlansPostretirement Benefit
Plans
(for the year ended December 31, in millions)202520242023202520242023
Service Cost:
Net investment income$1 $$— $ $— $— 
Claims and claim adjustment expenses44 45 44  — — 
General and administrative expenses69 70 64  — — 
Total service cost114 116 108  — — 
Non-Service Cost (Benefit):
Net investment income(1)(1)(1) — — 
Claims and claim adjustment expenses(34)(45)(54)(5)(3)(3)
General and administrative expenses(56)(73)(81)(7)(5)(4)
Total non-service cost (benefit)(91)(119)(136)(12)(8)(7)
Net periodic benefit cost (benefit)$23 $(3)$(28)$(12)$(8)$(7)
Benefit obligations assumptions, net periodic benefit cost assumptions and health care cost trend rates [Table Text Block]
The following table summarizes assumptions used with regard to the Company’s qualified and nonqualified domestic pension plans and the domestic postretirement benefit plans.
(as of and for the year ended December 31,)20252024
Assumptions used to determine benefit obligations
Discount rate:
Qualified domestic pension plan5.53 %5.69 %
Nonqualified domestic pension plan5.12 %5.51 %
Domestic postretirement benefit plan5.06 %5.48 %
Cash balance interest crediting rate4.01 %4.01 %
Future compensation increase rate4.00 %4.00 %
Assumptions used to determine net periodic benefit cost
Discount rate:
Qualified domestic pension plan:
Service cost5.81 %5.10 %
Interest cost5.36 %4.91 %
Nonqualified domestic pension plan:
Service cost5.58 %4.98 %
Interest cost5.25 %4.86 %
Domestic postretirement benefit plan:
Interest cost5.24 %4.84 %
Expected long-term rate of return on assets:
Qualified domestic pension plan7.00 %7.00 %
Domestic postretirement benefit plan4.00 %4.00 %
Assumed health care cost trend rates (1)
Following year(7.21)%(18.04)%
Rate to which the cost trend rate is assumed to decline (ultimate trend rate)4.50 %4.50 %
Year that the rate reaches the ultimate trend rate20352033
___________________________________________
(1)The 2026 assumed health care cost trend rate of (7.21)% reflects known negotiated medical premium rate changes and expected drug reimbursements to the Company’s baseline health care cost trend rate of 9.75%. After 2026, assumed health care cost trend rates are expected to increase in the subsequent year and then are expected to decrease in a linear pattern until the rate reaches the ultimate trend rate of 4.50% in 2035. The 2025 assumed health care cost trend rate of (18.04)% reflects known negotiated medical premium rate changes and expected drug reimbursements to the Company’s baseline health care cost trend rate of 10.00%.
Level within the fair value hierarchy at which the financial assets of the Company's pension plans are measured [Table Text Block]
The following tables present the level within the fair value hierarchy at which the financial assets of the Company’s pension plans are measured on a recurring basis.
(as of December 31, 2025, in millions)TotalLevel 1Level 2Level 3
Invested assets:
Fixed maturities
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities
$594 $594 $ $ 
Obligations of U.S. states, municipalities and political subdivisions160  160  
Debt securities issued by foreign governments36  36  
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
7  7  
Corporate and all other bonds767  767  
Total fixed maturities1,564 594 970  
Mutual funds
Equity mutual funds1,265 1,259 6  
Bond mutual funds94 91 3  
Total mutual funds1,359 1,350 9  
Equity securities1,533 1,533   
Other investments 1   1 
Cash and short-term securities
U.S. Treasury securities76 76   
Other76 76   
Total cash and short-term securities152 152   
Total$4,609 $3,629 $979 $1 
(as of December 31, 2024, in millions)TotalLevel 1Level 2Level 3
Invested assets:
Fixed maturities
Obligations of U.S. states, municipalities and political subdivisions$109 $— $109 $— 
Debt securities issued by foreign governments34 — 34 — 
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities
— — 
Corporate and all other bonds751 — 751 — 
Total fixed maturities902 — 902 — 
Mutual funds
Equity mutual funds1,178 1,172 — 
Bond mutual funds667 636 31 — 
Total mutual funds1,845 1,808 37 — 
Equity securities1,401 1,401 — — 
Other investments — — 
Cash and short-term securities
U.S. Treasury securities108 108 — — 
Other77 62 15 — 
Total cash and short-term securities185 170 15 — 
Total$4,334 $3,379 $954 $
Estimated future benefit payments [Table Text Block]
The following table presents the estimated benefits expected to be paid by the Company’s pension and postretirement benefit plans for the next ten years (reflecting estimated future employee service).
Benefits Expected to be Paid
(in millions)Pension PlansPostretirement Benefit Plans
2026$292 $5 
2027298 6 
2028303 6 
2029304 6 
2030301 6 
2031 through 2035
1,478 27 
v3.25.4
Leases (Tables)
12 Months Ended
Dec. 31, 2025
Leases [Abstract]  
Additional information regarding real estate operating leases [Table Text Block]
Lease expense is included in general and administrative expenses in the consolidated statement of income. Additional information regarding the Company’s real estate operating leases is as follows:
(for the year ended December 31, in millions)202520242023
Lease cost
Operating leases$64 $73 $76 
Short-term leases (1)
2 
Lease expense66 76 79 
Less: sublease income (2)
 — — 
Net lease cost$66 $76 $79 
Other information on operating leases
Cash payments to settle a lease liability reported in cash flows
$74 $79 $87 
Right-of-use assets obtained in exchange for new lease liabilities$30 $95 $37 
Weighted average discount rate4.06 %3.82 %
Weighted average remaining lease term5.4 years5.7 years
_________________________________________________________
(1) Leases with a term of twelve months or less are not recorded on the consolidated balance sheet.
(2) Sublease income consists of rent from third parties of office space and is recognized as part of other revenues in the consolidated statement of income.
Contractual maturities of lease liabilities [Table Text Block]
The following table presents the contractual maturities of the Company’s lease liabilities.
(in millions)Real Estate Lease Liability
2026$69 
202758 
202851 
202939 
203019 
Thereafter59 
Total undiscounted lease payments295 
Less: present value adjustment50 
Operating lease liability$245 
v3.25.4
Summary of Significant Accounting Policies (Details) - USD ($)
$ in Millions
Jan. 02, 2024
Jan. 02, 2026
Subsequent event [Member] | Canadian insurance business excluding surety business [Member] | Disposal group, disposed of by sale, not discontinued operations [Member]    
Business Acquisition    
Sales price on sale of business   $ 2,400
Corvus [Member]    
Business Acquisition    
Approximate consideration transferred in acquisition of Corvus Insurance Holdings, Inc. $ 427  
Assets acquired from Corvus at acquisition date 478  
Liabilities assumed as part of Corvus acquisition 51  
Identifiable intangible assets and goodwill recorded as part of Corvus acquisition 390  
Deferred tax asset recorded as a result of Corvus acquisition $ 19  
v3.25.4
Summary of Significant Accounting Policies (Details) - Assets and Liabilities Classified as Held for Sale
$ in Millions
Dec. 31, 2025
USD ($)
Assets  
Total assets held for sale $ 4,550
Liabilities  
Total liabilities held for sale 2,542
Disposal group, held-for-sale, not discontinued operations [Member] | Canadian insurance business excluding surety business [Member]  
Assets  
Fixed maturities, available for sale, at fair value 3,243
Premiums receivable 263
Reinsurance recoverables 285
Goodwill 208
Remaining assets held for sale 551
Total assets held for sale 4,550
Liabilities  
Claims and claim adjustment expense reserves 1,909
Unearned premium reserves 514
Remaining liabilities held for sale 119
Total liabilities held for sale $ 2,542
v3.25.4
Summary of Significant Accounting Policies (Details) - Policy Details
12 Months Ended
Dec. 31, 2025
Accounting Policies [Abstract]  
Maximum useful life for buildings held in real estate investments 39 years
Maximum original maturity of short-term securities 1 year
Availability of financial information provided by private equity and real estate partnerships following the date of the reporting, maximum 3 months
Availability of financial information provided by hedge funds following the date of the reporting 1 month
Estimated recovery time for securities for which the issuer is in bankruptcy 12 months
Estimated recovery time for securities for which the issuer is financially troubled but not in bankruptcy 24 months
v3.25.4
Summary of Significant Accounting Policies (Details) - Additional Details
$ in Millions
12 Months Ended
Dec. 31, 2025
USD ($)
segment
businesses
Dec. 31, 2024
USD ($)
Dec. 31, 2023
Accounting Policies [Abstract]      
Minimum collateral provided by borrowers of securities, as a percentage of the market value of the loaned securities plus accrued interest 102.00%    
Number of reporting units for which the Company performs a review of goodwill held | segment 3    
Number of operating segments | segment 3    
Number of reportable segments | segment 3    
Liability for guaranty fund and other insurance-related assessments | $ $ 188 $ 182  
Recoverables for liability for guaranty fund and other insurance-related assessments | $ $ 30 $ 29  
Minimum expected payment period for loss-based assessments and recoveries 1 year 1 year  
Net written premiums for participating dividend policies as a percent of total Company net written premiums 1.00% 1.00% 1.00%
Liability accrued for policyholder dividends | $ $ 80 $ 81  
Percentage of capital provided by International for its syndicate at Lloyd's 100.00%    
Number of principal business units through which the Company's syndicate at Lloyd's writes business | businesses 5    
v3.25.4
Summary of Significant Accounting Policies (Details) - Equity Method Investment
Dec. 31, 2025
Junto - Brazilian joint venture [Member]  
Equity method investment  
Percent of common stock owned 49.50%
v3.25.4
Segment Information (Details)
$ in Millions
12 Months Ended
Dec. 31, 2025
USD ($)
segment
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Segment reporting information      
Number of reportable business segments | segment 3    
Premiums $ 43,914 $ 41,941 $ 37,761
Net investment income 3,959 3,590 2,922
Fee income 495 473 433
Other revenues 508 449 353
Claims and claim adjustment expenses 27,221 27,059 26,215
Amortization of deferred acquisition costs 7,266 6,973 6,226
General and administrative expenses 6,120 5,819 5,176
Income tax expense (benefit) 1,508 1,181 380
Net realized investment losses (48) (30) (105)
Total revenues 48,828 46,423 41,364
Core income (loss) 6,325 5,025 3,072
Net realized investment losses, net of tax (37) (26) (81)
Net income 6,288 4,999 2,991
Domestic [Member]      
Segment reporting information      
Total revenues 46,360 43,924 39,086
International [Member]      
Segment reporting information      
Total revenues 2,468 2,499 2,278
Reportable segments [Member]      
Segment reporting information      
Premiums 43,914 41,941 37,761
Net investment income 3,959 3,590 2,922
Fee income 495 473 433
Other revenues 508 449 353
Total segment revenues 48,876 46,453 41,469
Claims and claim adjustment expenses 27,221 27,059 26,215
Amortization of deferred acquisition costs 7,266 6,973 6,226
General and administrative expenses 6,071 5,775 5,139
Income tax expense (benefit) 1,620 1,276 492
Core income (loss) 6,698 5,370 3,397
Reportable segments [Member] | Business Insurance [Member]      
Segment reporting information      
Premiums 22,412 21,345 19,144
Net investment income 2,782 2,560 2,085
Fee income 445 430 400
Other revenues 379 322 232
Total segment revenues 26,018 24,657 21,861
Claims and claim adjustment expenses 14,154 13,679 12,696
Amortization of deferred acquisition costs 3,796 3,588 3,173
General and administrative expenses 3,482 3,303 3,041
Income tax expense (benefit) 891 781 368
Core income (loss) 3,695 3,306 2,583
Reportable segments [Member] | Business Insurance [Member] | Domestic [Member]      
Segment reporting information      
Premiums 20,513 19,482 17,744
Reportable segments [Member] | Business Insurance [Member] | Domestic [Member] | Workers' compensation [Member]      
Segment reporting information      
Premiums 3,360 3,470 3,467
Reportable segments [Member] | Business Insurance [Member] | Domestic [Member] | Automobile [Member]      
Segment reporting information      
Premiums 3,942 3,590 3,215
Reportable segments [Member] | Business Insurance [Member] | Domestic [Member] | Commercial property [Member]      
Segment reporting information      
Premiums 3,772 3,616 3,154
Reportable segments [Member] | Business Insurance [Member] | Domestic [Member] | General liability [Member]      
Segment reporting information      
Premiums 3,566 3,464 3,146
Reportable segments [Member] | Business Insurance [Member] | Domestic [Member] | Commercial multi-peril [Member]      
Segment reporting information      
Premiums 5,797 5,269 4,686
Reportable segments [Member] | Business Insurance [Member] | Domestic [Member] | Other [Member]      
Segment reporting information      
Premiums 76 73 76
Reportable segments [Member] | Business Insurance [Member] | International [Member]      
Segment reporting information      
Premiums 1,899 1,863 1,400
Reportable segments [Member] | Bond & Specialty Insurance [Member]      
Segment reporting information      
Premiums 4,107 3,958 3,655
Net investment income 445 390 328
Fee income 0 0 0
Other revenues 27 30 25
Total segment revenues 4,579 4,378 4,008
Claims and claim adjustment expenses 1,764 1,774 1,485
Amortization of deferred acquisition costs 778 756 673
General and administrative expenses 843 832 681
Income tax expense (benefit) 244 201 227
Core income (loss) 950 815 942
Reportable segments [Member] | Bond & Specialty Insurance [Member] | Domestic [Member]      
Segment reporting information      
Premiums 3,569 3,425 3,154
Reportable segments [Member] | Bond & Specialty Insurance [Member] | Domestic [Member] | General liability [Member]      
Segment reporting information      
Premiums 1,838 1,778 1,639
Reportable segments [Member] | Bond & Specialty Insurance [Member] | Domestic [Member] | Fidelity and surety [Member]      
Segment reporting information      
Premiums 1,492 1,416 1,290
Reportable segments [Member] | Bond & Specialty Insurance [Member] | Domestic [Member] | Other [Member]      
Segment reporting information      
Premiums 239 231 225
Reportable segments [Member] | Bond & Specialty Insurance [Member] | International [Member]      
Segment reporting information      
Premiums 538 533 501
Reportable segments [Member] | Personal Insurance [Member]      
Segment reporting information      
Premiums 17,395 16,638 14,962
Net investment income 732 640 509
Fee income 50 43 33
Other revenues 102 97 96
Total segment revenues 18,279 17,418 15,600
Claims and claim adjustment expenses 11,303 11,606 12,034
Amortization of deferred acquisition costs 2,692 2,629 2,380
General and administrative expenses 1,746 1,640 1,417
Income tax expense (benefit) 485 294 (103)
Core income (loss) 2,053 1,249 (128)
Reportable segments [Member] | Personal Insurance [Member] | Domestic [Member]      
Segment reporting information      
Premiums 16,726 15,975 14,327
Reportable segments [Member] | Personal Insurance [Member] | Domestic [Member] | Automobile [Member]      
Segment reporting information      
Premiums 7,902 7,767 6,923
Reportable segments [Member] | Personal Insurance [Member] | Domestic [Member] | Homeowners and Other [Member]      
Segment reporting information      
Premiums 8,824 8,208 7,404
Reportable segments [Member] | Personal Insurance [Member] | International [Member]      
Segment reporting information      
Premiums 669 663 635
Other [Member]      
Segment reporting information      
Core income (loss) (373) (345) (325)
After-tax interest expense $ 336 $ 310 $ 297
v3.25.4
Segment Information (Details) - Prior Year Development and Catastrophes - Reportable segments [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Segment reporting information      
Net favorable (unfavorable) prior year reserve development $ 1,036 $ 709 $ 143
Catastrophe losses 3,690 3,335 2,991
Business Insurance [Member]      
Segment reporting information      
Net favorable (unfavorable) prior year reserve development 233 90 (289)
Catastrophe losses 1,073 1,032 838
Bond & Specialty Insurance [Member]      
Segment reporting information      
Net favorable (unfavorable) prior year reserve development 221 129 285
Catastrophe losses 25 51 37
Personal Insurance [Member]      
Segment reporting information      
Net favorable (unfavorable) prior year reserve development 582 490 147
Catastrophe losses $ 2,592 $ 2,252 $ 2,116
v3.25.4
Segment Information (Details) - Amortization and Depreciation - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Segment reporting information      
Amortization and depreciation $ 680 $ 715 $ 722
Reportable segments [Member]      
Segment reporting information      
Amortization and depreciation 673 709 716
Reportable segments [Member] | Business Insurance [Member]      
Segment reporting information      
Amortization and depreciation 409 426 467
Reportable segments [Member] | Bond & Specialty Insurance [Member]      
Segment reporting information      
Amortization and depreciation 82 86 71
Reportable segments [Member] | Personal Insurance [Member]      
Segment reporting information      
Amortization and depreciation $ 182 $ 197 $ 178
v3.25.4
Segment Information (Details) - Net Written Premiums - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Segment reporting information      
Net written premiums $ 44,387 $ 43,356 $ 40,201
Business Insurance [Member]      
Segment reporting information      
Net written premiums 22,679 22,078 20,430
Business Insurance [Member] | Domestic [Member]      
Segment reporting information      
Net written premiums 20,745 20,143 18,665
Business Insurance [Member] | Domestic [Member] | Select Accounts [Member]      
Segment reporting information      
Net written premiums 3,830 3,727 3,477
Business Insurance [Member] | Domestic [Member] | Middle Market [Member]      
Segment reporting information      
Net written premiums 12,541 12,023 11,045
Business Insurance [Member] | Domestic [Member] | National Accounts [Member]      
Segment reporting information      
Net written premiums 1,262 1,259 1,135
Business Insurance [Member] | Domestic [Member] | National Property and Other [Member]      
Segment reporting information      
Net written premiums 3,112 3,134 3,008
Business Insurance [Member] | International [Member]      
Segment reporting information      
Net written premiums 1,934 1,935 1,765
Bond & Specialty Insurance [Member]      
Segment reporting information      
Net written premiums 4,262 4,109 3,842
Bond & Specialty Insurance [Member] | Domestic [Member]      
Segment reporting information      
Net written premiums 3,680 3,603 3,303
Bond & Specialty Insurance [Member] | Domestic [Member] | Management Liability [Member]      
Segment reporting information      
Net written premiums 2,326 2,309 2,156
Bond & Specialty Insurance [Member] | Domestic [Member] | Surety [Member]      
Segment reporting information      
Net written premiums 1,354 1,294 1,147
Bond & Specialty Insurance [Member] | International [Member]      
Segment reporting information      
Net written premiums 582 506 539
Personal Insurance [Member]      
Segment reporting information      
Net written premiums 17,446 17,169 15,929
Personal Insurance [Member] | Domestic [Member]      
Segment reporting information      
Net written premiums 16,796 16,475 15,279
Personal Insurance [Member] | Domestic [Member] | Automobile [Member]      
Segment reporting information      
Net written premiums 7,745 7,925 7,330
Personal Insurance [Member] | Domestic [Member] | Homeowners and Other [Member]      
Segment reporting information      
Net written premiums 9,051 8,550 7,949
Personal Insurance [Member] | International [Member]      
Segment reporting information      
Net written premiums $ 650 $ 694 $ 650
v3.25.4
Segment Information (Details) - Assets by Segment - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Assets by segment    
Total assets $ 143,708 $ 133,189
Reportable segments [Member]    
Assets by segment    
Total assets 142,547 132,077
Reportable segments [Member] | Business Insurance [Member]    
Assets by segment    
Total assets 106,084 98,311
Reportable segments [Member] | Bond & Specialty Insurance [Member]    
Assets by segment    
Total assets 13,676 12,628
Reportable segments [Member] | Personal Insurance [Member]    
Assets by segment    
Total assets 22,787 21,138
Other assets [Member]    
Assets by segment    
Total assets $ 1,161 $ 1,112
v3.25.4
Segment Information (Details) - Enterprise-Wide Disclosures - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Revenues based on location      
Benchmark percentage of revenue transactions from a single customer 10.00% 10.00% 10.00%
Total revenues $ 48,828 $ 46,423 $ 41,364
United States [Member]      
Revenues based on location      
Total revenues 46,360 43,924 39,086
Non-U.S. [Member]      
Revenues based on location      
Total revenues 2,468 2,499 2,278
Canada [Member]      
Revenues based on location      
Total revenues 1,345 1,359 1,281
Other Non-U.S. [Member]      
Revenues based on location      
Total revenues $ 1,123 $ 1,140 $ 997
v3.25.4
Investments (Details) - Fixed Maturities - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Investment disclosure details      
Fixed maturities, amortized cost $ 91,717 $ 88,277  
Allowance for expected credit losses 3 2  
Gross unrealized gains 968 223  
Gross unrealized losses 2,849 4,832  
Fixed maturities, at fair value 89,833 83,666  
Amounts classified as held for sale [Member]      
Investment disclosure details      
Fixed maturities, amortized cost 3,221    
Fixed maturities, at fair value 3,243    
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities [Member]      
Investment disclosure details      
Fixed maturities, amortized cost 3,927 5,735  
Allowance for expected credit losses 0 0  
Gross unrealized gains 11 4  
Gross unrealized losses 81 169  
Fixed maturities, at fair value 3,857 5,570  
Obligations of U.S. states, municipalities and political subdivisions [Member]      
Investment disclosure details      
Fixed maturities, amortized cost 32,819 29,526  
Allowance for expected credit losses 0 0  
Gross unrealized gains 229 43  
Gross unrealized losses 1,670 2,384  
Fixed maturities, at fair value 31,378 27,185  
Obligations of U.S. states, municipalities and political subdivisions, local general obligation [Member]      
Investment disclosure details      
Fixed maturities, amortized cost 21,724 18,604  
Allowance for expected credit losses 0 0  
Gross unrealized gains 161 23  
Gross unrealized losses 1,096 1,604  
Fixed maturities, at fair value 20,789 17,023  
Obligations of U.S. states, municipalities and political subdivisions, revenue [Member]      
Investment disclosure details      
Fixed maturities, amortized cost 9,810 9,268  
Allowance for expected credit losses 0 0  
Gross unrealized gains 58 16  
Gross unrealized losses 543 704  
Fixed maturities, at fair value 9,325 8,580  
Obligations of U.S. states, municipalities and political subdivisions, state general obligation [Member]      
Investment disclosure details      
Fixed maturities, amortized cost 871 1,081  
Allowance for expected credit losses 0 0  
Gross unrealized gains 6 2  
Gross unrealized losses 29 73  
Fixed maturities, at fair value 848 1,010  
Obligations of U.S. states, municipalities and political subdivisions, pre-refunded [Member]      
Investment disclosure details      
Fixed maturities, amortized cost 414 573  
Allowance for expected credit losses 0 0  
Gross unrealized gains 4 2  
Gross unrealized losses 2 3  
Fixed maturities, at fair value 416 572  
Debt securities issued by foreign governments [Member]      
Investment disclosure details      
Fixed maturities, amortized cost 313 917  
Allowance for expected credit losses 0 0  
Gross unrealized gains 2 5  
Gross unrealized losses 3 13  
Fixed maturities, at fair value 312 909  
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities [Member]      
Investment disclosure details      
Fixed maturities, amortized cost 13,094 12,888  
Allowance for expected credit losses 0 0  
Gross unrealized gains 268 53  
Gross unrealized losses 130 336  
Fixed maturities, at fair value 13,232 12,605  
Corporate and all other bonds [Member]      
Investment disclosure details      
Fixed maturities, amortized cost 41,564 39,211  
Allowance for expected credit losses 3 2 $ 5
Gross unrealized gains 458 118  
Gross unrealized losses 965 1,930  
Fixed maturities, at fair value $ 41,054 $ 37,397  
v3.25.4
Investments (Details) - Contractual Maturities - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Investments [Abstract]    
Fixed maturities, due in one year or less, amortized cost $ 5,902  
Fixed maturities, due after 1 year through 5 years, amortized cost 21,141  
Fixed maturities, due after 5 years through 10 years, amortized cost 24,897  
Fixed maturities, due after 10 years, amortized cost 26,683  
Fixed maturities excluding mortgage-backed securities, collateralized mortgage obligations and pass-through securities, amortized cost 78,623  
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities, amortized cost 13,094  
Fixed maturities, amortized cost 91,717 $ 88,277
Fixed maturities, due in one year or less, fair value 5,893  
Fixed maturities, due after 1 year through 5 years, fair value 20,762  
Fixed maturities, due after 5 years through 10 years, fair value 24,397  
Fixed maturities, due after 10 years, fair value 25,549  
Fixed maturities excluding mortgage-backed securities, collateralized mortgage obligations and pass-through securities, fair value 76,601  
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities, fair value 13,232  
Fixed maturities, at fair value $ 89,833 $ 83,666
v3.25.4
Investments (Details) - Fixed Maturities Narrative - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Investment disclosure details      
Fixed maturities, at fair value $ 89,833 $ 83,666  
Securities on loan as part of a tri-party lending agreement 473 586  
Proceeds from sales of fixed maturities classified as available for sale 832 1,634 $ 4,981
Gross realized gains on sales of fixed maturities 1 2 26
Gross realized losses on sales of fixed maturities 33 62 119
Realized losses resulting from the early redemption of fixed maturities by the issuer prior to the bonds' maturity date 35 66 $ 0
Insurance subsidiaries' securities on deposit at financial institutions in certain states pursuant to the respective states' insurance regulatory requirements 4,040 3,960  
Fair value of funds deposited with third parties to be used as collateral to secure various liabilities on behalf of insureds, cedants and other creditors 51 46  
Subsidiary [Member]      
Investment disclosure details      
Fair value of owned securities pledged into a Lloyd's trust account to support capital requirements for the Company's operations at Lloyd's 13 13  
TRV [Member]      
Investment disclosure details      
Fixed maturities, at fair value 243 186  
Fair value of owned securities pledged into a Lloyd's trust account to support capital requirements for the Company's operations at Lloyd's 89 86  
Obligations of U.S. states, municipalities and political subdivisions, pre-refunded [Member]      
Investment disclosure details      
Fixed maturities, at fair value 416 572  
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities [Member]      
Investment disclosure details      
Fixed maturities, at fair value 13,232 12,605  
Residential mortgage-backed pass-through securities classified as available-for-sale, GNMA, FNMA, FHLMC and Canadian Government [Member]      
Investment disclosure details      
Fixed maturities, at fair value 10,240 9,930  
Residential collateralized mortgage obligations [Member]      
Investment disclosure details      
Fixed maturities, at fair value $ 2,990 $ 2,680  
Percent guaranteed by or fully collateralized by securities issued by GNMA, FNMA or FHLMC 45.00% 43.00%  
Non-guaranteed residential collateralized mortgage obligations [Member]      
Investment disclosure details      
Fixed maturities, at fair value $ 1,640 $ 1,530  
Commercial mortgage-backed securities [Member]      
Investment disclosure details      
Fixed maturities, at fair value 1,310 1,150  
Commercial mortgage-backed securities, containing guarantees by the U.S. government or a government-sponsored enterprise [Member]      
Investment disclosure details      
Fixed maturities, at fair value 557 327  
Commercial mortgage-backed securities, non-guaranteed securities [Member]      
Investment disclosure details      
Fixed maturities, at fair value $ 757 $ 825  
v3.25.4
Investments (Details) - Equity Securities - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Investment disclosure details    
Equity securities, cost $ 457 $ 544
Gross gains 178 154
Gross losses 17 11
Equity securities, at fair value 618 687
Net recognized gains on equity securities still held 50 89
Amounts classified as held for sale [Member]    
Investment disclosure details    
Equity securities, cost 69  
Equity securities, at fair value 104  
Common stock [Member]    
Investment disclosure details    
Equity securities, cost 419 500
Gross gains 177 150
Gross losses 12 11
Equity securities, at fair value 584 639
Non-redeemable preferred stock [Member]    
Investment disclosure details    
Equity securities, cost 38 44
Gross gains 1 4
Gross losses 5 0
Equity securities, at fair value $ 34 $ 48
v3.25.4
Investments (Details) - Additional Information - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Investments [Abstract]      
Proceeds from sales of real estate investments $ 0 $ 64 $ 0
Gains realized on sales of real estate investments   17  
Realized losses included in net realized investment losses related to real estate impairments 0 5 $ 9
Accumulated depreciation on real estate held for investment purposes 620 581  
Future minimum rental income expected on operating leases relating to the Company's real estate properties for 2026 124    
Future minimum rental income expected on operating leases relating to the Company's real estate properties for 2027 114    
Future minimum rental income expected on operating leases relating to the Company's real estate properties for 2028 92    
Future minimum rental income expected on operating leases relating to the Company's real estate properties for 2029 63    
Future minimum rental income expected on operating leases relating to the Company's real estate properties for 2030 46    
Future minimum rental income expected on operating leases relating to the Company's real estate properties for 2031 and thereafter $ 69    
Combined average days to maturity of short-term securities (in days) 24 days    
Amortized cost of short-term securities (which approximates fair value) $ 5,716 $ 4,766  
Availability of financial information provided by hedge funds following the date of the reporting 1 month    
Availability of financial information provided by private equity and real estate partnerships following the date of the reporting, maximum 3 months    
Minimum percentage of equity interest that must be held by the Company in order for the investment in a VIE to be considered significant 20.00%    
v3.25.4
Investments (Details) - Unrealized Losses - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Investment disclosure details    
Continuous unrealized loss position, less than 12 months, fair value $ 5,667 $ 23,954
Continuous unrealized loss position, less than 12 months, gross unrealized losses 48 454
Continuous unrealized loss position, 12 months or longer, fair value 37,450 41,709
Continuous unrealized loss position, 12 months or longer, gross unrealized losses 2,801 4,378
Continuous unrealized loss position, total, fair value 43,117 65,663
Continuous unrealized loss position, total, gross unrealized losses 2,849 4,832
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, 3 months or less 19 437
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost greater than 3 months, 6 months or less 0 0
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, greater than 6 months, 12 months or less 14 43
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, greater than 12 months 550 638
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, total 583 1,118
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities [Member]    
Investment disclosure details    
Continuous unrealized loss position, less than 12 months, fair value 611 557
Continuous unrealized loss position, less than 12 months, gross unrealized losses 5 1
Continuous unrealized loss position, 12 months or longer, fair value 1,684 2,830
Continuous unrealized loss position, 12 months or longer, gross unrealized losses 76 168
Continuous unrealized loss position, total, fair value 2,295 3,387
Continuous unrealized loss position, total, gross unrealized losses 81 169
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, 3 months or less 0 0
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost greater than 3 months, 6 months or less 0 0
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, greater than 6 months, 12 months or less 0 0
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, greater than 12 months 0 0
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, total 0 0
Obligations of U.S. states, municipalities and political subdivisions [Member]    
Investment disclosure details    
Continuous unrealized loss position, less than 12 months, fair value 2,234 8,584
Continuous unrealized loss position, less than 12 months, gross unrealized losses 28 160
Continuous unrealized loss position, 12 months or longer, fair value 16,428 15,007
Continuous unrealized loss position, 12 months or longer, gross unrealized losses 1,642 2,224
Continuous unrealized loss position, total, fair value 18,662 23,591
Continuous unrealized loss position, total, gross unrealized losses 1,670 2,384
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, 3 months or less 18 366
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost greater than 3 months, 6 months or less 0 0
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, greater than 6 months, 12 months or less 10 43
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, greater than 12 months 550 635
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, total 578 1,044
Debt securities issued by foreign governments [Member]    
Investment disclosure details    
Continuous unrealized loss position, less than 12 months, fair value 34 113
Continuous unrealized loss position, less than 12 months, gross unrealized losses 0 1
Continuous unrealized loss position, 12 months or longer, fair value 75 454
Continuous unrealized loss position, 12 months or longer, gross unrealized losses 3 12
Continuous unrealized loss position, total, fair value 109 567
Continuous unrealized loss position, total, gross unrealized losses 3 13
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, 3 months or less 0 0
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost greater than 3 months, 6 months or less 0 0
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, greater than 6 months, 12 months or less 0 0
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, greater than 12 months 0 0
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, total 0 0
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities [Member]    
Investment disclosure details    
Continuous unrealized loss position, less than 12 months, fair value 437 7,359
Continuous unrealized loss position, less than 12 months, gross unrealized losses 2 148
Continuous unrealized loss position, 12 months or longer, fair value 1,835 1,419
Continuous unrealized loss position, 12 months or longer, gross unrealized losses 128 188
Continuous unrealized loss position, total, fair value 2,272 8,778
Continuous unrealized loss position, total, gross unrealized losses 130 336
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, 3 months or less 0 58
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost greater than 3 months, 6 months or less 0 0
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, greater than 6 months, 12 months or less 0 0
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, greater than 12 months 0 0
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, total 0 58
Corporate and all other bonds [Member]    
Investment disclosure details    
Continuous unrealized loss position, less than 12 months, fair value 2,351 7,341
Continuous unrealized loss position, less than 12 months, gross unrealized losses 13 144
Continuous unrealized loss position, 12 months or longer, fair value 17,428 21,999
Continuous unrealized loss position, 12 months or longer, gross unrealized losses 952 1,786
Continuous unrealized loss position, total, fair value 19,779 29,340
Continuous unrealized loss position, total, gross unrealized losses 965 1,930
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, 3 months or less 1 13
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost greater than 3 months, 6 months or less 0 0
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, greater than 6 months, 12 months or less 4 0
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, greater than 12 months 0 3
Unrealized investment losses on fixed maturity investments for which fair value is less than 80% of amortized cost, total $ 5 $ 16
v3.25.4
Investments (Details) - Impairment Charges - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Investment Information      
Fixed maturities credit impairment charges $ 2 $ 5 $ 3
Total net impairment charges, including credit impairments, reported in net realized investment losses in the consolidated statement of income 2 10 12
Realized losses included in net realized investment losses related to real estate impairments 0 5 9
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities [Member]      
Investment Information      
Fixed maturities credit impairment charges 0 0 0
Obligations of U.S. states, municipalities and political subdivisions [Member]      
Investment Information      
Fixed maturities credit impairment charges 0 0 1
Debt securities issued by foreign governments [Member]      
Investment Information      
Fixed maturities credit impairment charges 0 0 0
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities [Member]      
Investment Information      
Fixed maturities credit impairment charges 0 0 0
Corporate and all other bonds [Member]      
Investment Information      
Fixed maturities credit impairment charges $ 2 $ 5 $ 2
v3.25.4
Investments (Details) - Allowance for Expected Credit Losses - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Allowance for expected credit losses [Roll Forward]    
Allowance for expected credit losses on fixed maturities classified as available-for-sale, balance, beginning of period $ 2  
Allowance for expected credit losses on fixed maturities classified as available-for-sale, balance, end of period $ 3 $ 2
Credit losses on fixed maturities recognized in the consolidated statement of income, as a percentage of the fixed maturity portfolio on a pre-tax basis (less than) 1.00% 1.00%
Credit losses on fixed maturities recognized in the consolidated statement of income, as a percentage of shareholders' equity on an after-tax basis (less than) 1.00% 1.00%
Corporate and all other bonds [Member]    
Allowance for expected credit losses [Roll Forward]    
Allowance for expected credit losses on fixed maturities classified as available-for-sale, balance, beginning of period $ 2 $ 5
Additions for expected credit losses on securities where no credit losses were previously recognized 4 5
Additions (reductions) for expected credit losses on securities where credit losses were previously recognized 0 (1)
Reductions due to sales/defaults of credit-impaired securities (3) (7)
Reductions for impairments of securities which the Company intends to sell or more likely than not will be required to sell 0 0
Allowance for expected credit losses on fixed maturities classified as available-for-sale, balance, end of period $ 3 $ 2
v3.25.4
Investments (Details) - Concentrations and Credit Quality - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Investment disclosure details    
Fixed maturities, at fair value $ 89,833 $ 83,666
Below investment grade [Member]    
Investment disclosure details    
Fixed maturities, at fair value 1,050 980
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities [Member]    
Investment disclosure details    
Fixed maturities, at fair value $ 3,857 $ 5,570
Credit Concentration Risk [Member] | Shareholders' equity, total [Member] | U.S. Treasury securities and obligations of U.S. government and government agencies and authorities [Member] | Minimum [Member]    
Investment disclosure details    
Concentration risk as a percentage of shareholders' equity 5.00% 5.00%
v3.25.4
Investments (Details) - Net Investment Income - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Net investment income      
Gross investment income $ 4,012 $ 3,637 $ 2,966
Investment expenses 53 47 44
Net investment income 3,959 3,590 2,922
Fixed maturities [Member]      
Net investment income      
Gross investment income 3,433 2,948 2,472
Equity securities [Member]      
Net investment income      
Gross investment income 21 21 18
Short-term securities [Member]      
Net investment income      
Gross investment income 253 280 241
Real estate [Member]      
Net investment income      
Gross investment income 59 70 64
Other investments [Member]      
Net investment income      
Gross investment income $ 246 $ 318 $ 171
v3.25.4
Investments (Details) - Net Unrealized Investment Gains (Losses) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Changes in net unrealized investment gains (losses) [Roll Forward]      
Changes in net unrealized investment gains (losses) $ 3,087 $ (575) $ 2,494
Income tax expense (benefit) 620 (79) 520
Change in net unrealized gains (losses) on investment securities, net of tax 2,467 (496) 1,974
Balance, beginning of year (4,967)    
Balance, end of year (2,500) (4,967)  
Accumulated Other Comprehensive Income (Loss) [Member]      
Changes in net unrealized investment gains (losses) [Roll Forward]      
Changes in net unrealized investment gains (losses) 3,087 (575) 2,494
Income tax expense (benefit) 620 (79) 520
Change in net unrealized gains (losses) on investment securities, net of tax 2,467 (496) 1,974
Changes in Net Unrealized Gains (Losses) on Investment Securities [Member]      
Changes in net unrealized investment gains (losses) [Roll Forward]      
Changes in net unrealized investment gains (losses) 2,747 (639) 2,250
Income tax expense (benefit) 585 (128) 481
Change in net unrealized gains (losses) on investment securities, net of tax 2,162 (511) 1,769
Balance, beginning of year (3,640) (3,129) (4,898)
Balance, end of year (1,478) (3,640) (3,129)
Changes in Net Unrealized Gains (Losses) on Investment Securities [Member] | Fixed maturities [Member]      
Changes in net unrealized investment gains (losses) [Roll Forward]      
Changes in net unrealized investment gains (losses) 2,750 (640) 2,248
Changes in Net Unrealized Gains (Losses) on Investment Securities [Member] | Other investments [Member]      
Changes in net unrealized investment gains (losses) [Roll Forward]      
Changes in net unrealized investment gains (losses) $ (3) $ 1 $ 2
v3.25.4
Fair Value Measurements (Details) - Additional Information
Dec. 31, 2025
Dec. 31, 2024
Fair Value Disclosures [Abstract]    
Percent of fixed maturities for which a pricing service estimates fair value 99.00% 99.00%
Percent change in monthly price at which securities are further evaluated 10.00%  
v3.25.4
Fair Value Measurements (Details) - Fair Value Hierarchy - Recurring basis [Member] - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis $ 93,807 $ 84,373
Amounts classified as held for sale [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 3,347  
Fixed maturities [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 89,833 83,666
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 3,857 5,570
Obligations of U.S. states, municipalities and political subdivisions [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 31,378 27,185
Debt securities issued by foreign governments [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 312 909
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 13,232 12,605
Corporate and all other bonds [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 41,054 37,397
Equity securities [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 618 687
Common stock [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 584 639
Non-redeemable preferred stock [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 34 48
Other investments [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 9 20
Level 1 [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 4,578 6,237
Level 1 [Member] | Amounts classified as held for sale [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 104  
Level 1 [Member] | Fixed maturities [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 3,882 5,570
Level 1 [Member] | U.S. Treasury securities and obligations of U.S. government and government agencies and authorities [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 3,857 5,570
Level 1 [Member] | Obligations of U.S. states, municipalities and political subdivisions [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 0 0
Level 1 [Member] | Debt securities issued by foreign governments [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 0 0
Level 1 [Member] | Mortgage-backed securities, collateralized mortgage obligations and pass-through securities [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 0 0
Level 1 [Member] | Corporate and all other bonds [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 25 0
Level 1 [Member] | Equity securities [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 583 647
Level 1 [Member] | Common stock [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 576 631
Level 1 [Member] | Non-redeemable preferred stock [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 7 16
Level 1 [Member] | Other investments [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 9 20
Level 1 [Member] | Investments in various publicly-traded securities, including mutual funds and other small holdings [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 9 20
Level 2 [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 88,866 77,850
Level 2 [Member] | Amounts classified as held for sale [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 3,243  
Level 2 [Member] | Fixed maturities [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 85,620 77,847
Level 2 [Member] | U.S. Treasury securities and obligations of U.S. government and government agencies and authorities [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 0 0
Level 2 [Member] | Obligations of U.S. states, municipalities and political subdivisions [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 31,378 27,185
Level 2 [Member] | Debt securities issued by foreign governments [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 312 909
Level 2 [Member] | Mortgage-backed securities, collateralized mortgage obligations and pass-through securities [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 13,232 12,602
Level 2 [Member] | Corporate and all other bonds [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 40,698 37,151
Level 2 [Member] | Equity securities [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 3 3
Level 2 [Member] | Common stock [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 0 0
Level 2 [Member] | Non-redeemable preferred stock [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 3 3
Level 2 [Member] | Other investments [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 0 0
Level 3 [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 363 286
Level 3 [Member] | Amounts classified as held for sale [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 0  
Level 3 [Member] | Fixed maturities [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 331 249
Level 3 [Member] | U.S. Treasury securities and obligations of U.S. government and government agencies and authorities [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 0 0
Level 3 [Member] | Obligations of U.S. states, municipalities and political subdivisions [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 0 0
Level 3 [Member] | Debt securities issued by foreign governments [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 0 0
Level 3 [Member] | Mortgage-backed securities, collateralized mortgage obligations and pass-through securities [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 0 3
Level 3 [Member] | Corporate and all other bonds [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 331 246
Level 3 [Member] | Equity securities [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 32 37
Level 3 [Member] | Common stock [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 8 8
Level 3 [Member] | Non-redeemable preferred stock [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 24 29
Level 3 [Member] | Investment in non-public common and preferred equity securities where the fair value estimate is determined either internally or by an external fund manager [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis 32 37
Level 3 [Member] | Other investments [Member]    
Level within the fair value hierarchy at which the Company's financial assets and financial liabilities are measured    
Total invested assets measured on a recurring basis $ 0 $ 0
v3.25.4
Fair Value Measurements (Details) - Changes in Level 3 - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Changes in Level 3 fair value category [Roll Forward]    
Level 3 fair value category, beginning balance $ 286 $ 295
Level 3 fair value category, total realized and unrealized investment gains (losses) reported in net realized investment losses $ (6) $ 1
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Net realized investment losses Net realized investment losses
Level 3 fair value category, total unrealized investment gains (losses) reported in other comprehensive income (loss) $ 3 $ (1)
Level 3 fair value category purchases 1 87
Level 3 fair value category sales 0 (3)
Level 3 fair value category settlements/maturities (51) (25)
Gross transfers into Level 3 135 0
Gross transfers out of Level 3 (5) (68)
Level 3 fair value category, ending balance 363 286
Amount of total realized investment gains (losses) for the period included in the consolidated statement of income attributable to changes in the fair value of assets still held at the reporting date $ (6) $ 1
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Net realized investment losses Net realized investment losses
Fixed maturities [Member]    
Changes in Level 3 fair value category [Roll Forward]    
Level 3 fair value category, beginning balance $ 249 $ 258
Level 3 fair value category, total realized and unrealized investment gains (losses) reported in net realized investment losses 0 0
Level 3 fair value category, total unrealized investment gains (losses) reported in other comprehensive income (loss) 3 (1)
Level 3 fair value category purchases 0 85
Level 3 fair value category sales 0 0
Level 3 fair value category settlements/maturities (51) (25)
Gross transfers into Level 3 135 0
Gross transfers out of Level 3 (5) (68)
Level 3 fair value category, ending balance 331 249
Amount of total realized investment gains (losses) for the period included in the consolidated statement of income attributable to changes in the fair value of assets still held at the reporting date 0 0
Corporate and all other bonds [Member]    
Changes in Level 3 fair value category [Roll Forward]    
Gross transfers into Level 3 133  
Equity securities [Member]    
Changes in Level 3 fair value category [Roll Forward]    
Level 3 fair value category, beginning balance 37 37
Level 3 fair value category, total realized and unrealized investment gains (losses) reported in net realized investment losses (6) 1
Level 3 fair value category, total unrealized investment gains (losses) reported in other comprehensive income (loss) 0 0
Level 3 fair value category purchases 1 2
Level 3 fair value category sales 0 (3)
Level 3 fair value category settlements/maturities 0 0
Gross transfers into Level 3 0 0
Gross transfers out of Level 3 0 0
Level 3 fair value category, ending balance 32 37
Amount of total realized investment gains (losses) for the period included in the consolidated statement of income attributable to changes in the fair value of assets still held at the reporting date (6) 1
Other investments [Member]    
Changes in Level 3 fair value category [Roll Forward]    
Level 3 fair value category, beginning balance 0 0
Level 3 fair value category, total realized and unrealized investment gains (losses) reported in net realized investment losses 0 0
Level 3 fair value category, total unrealized investment gains (losses) reported in other comprehensive income (loss) 0 0
Level 3 fair value category purchases 0 0
Level 3 fair value category sales 0 0
Level 3 fair value category settlements/maturities 0 0
Gross transfers into Level 3 0 0
Gross transfers out of Level 3 0 0
Level 3 fair value category, ending balance 0 0
Amount of total realized investment gains (losses) for the period included in the consolidated statement of income attributable to changes in the fair value of assets still held at the reporting date $ 0 $ 0
v3.25.4
Fair Value Measurements (Details) - Financial Instruments - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Financial Instruments    
Short-term securities $ 5,716 $ 4,766
Commercial paper 100 100
Carrying Value [Member]    
Financial Instruments    
Short-term securities 5,716 4,766
Debt 9,167 7,933
Commercial paper 100 100
Fair Value [Member]    
Financial Instruments    
Short-term securities 5,716 4,766
Debt 8,538 7,095
Commercial paper 100 100
Fair Value [Member] | Level 1 [Member]    
Financial Instruments    
Short-term securities 1,398 1,933
Debt 0 0
Commercial paper 0 0
Fair Value [Member] | Level 2 [Member]    
Financial Instruments    
Short-term securities 4,267 2,788
Debt 8,538 7,095
Commercial paper 100 100
Fair Value [Member] | Level 3 [Member]    
Financial Instruments    
Short-term securities 51 45
Debt 0 0
Commercial paper $ 0 $ 0
v3.25.4
Allowance for Expected Credit Losses (Details) - Changes in the Allowance for Expected Credit Losses on Premiums Receivable - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Credit Loss [Abstract]    
Premiums receivable (net of allowance for expected credit losses), balance, beginning of period $ 11,110 $ 10,282
Premiums receivable (net of allowance for expected credit losses), balance, end of period 10,992 11,110
Premiums receivable, allowance for expected credit losses [Roll Forward]    
Premiums receivable, allowance for expected credit losses, beginning balance 58 69
Current period change for expected credit losses 65 50
Write-offs of uncollectible premiums receivable 64 61
Less amounts classified as held for sale 1  
Premiums receivable, allowance for expected credit losses, ending balance $ 58 $ 58
v3.25.4
Allowance for Expected Credit Losses (Details) - Changes in the Allowance for Estimated Uncollectible Reinsurance - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Credit Loss [Abstract]    
Reinsurance recoverables (net of allowance for estimated uncollectible reinsurance), balance, beginning of period $ 8,000 $ 8,143
Reinsurance recoverables (net of allowance for estimated uncollectible reinsurance), balance, end of period 7,886 8,000
Reinsurance recoverables, allowance for uncollectible reinsurance [Roll Forward]    
Reinsurance recoverables, allowance for uncollectible reinsurance, beginning balance 119 118
Current period change for estimated uncollectible reinsurance 16 1
Write-offs of uncollectible reinsurance recoverables 0 0
Less amounts classified as held for sale 6  
Reinsurance recoverables, allowance for uncollectible reinsurance, ending balance $ 129 $ 119
v3.25.4
Allowance for Expected Credit Losses (Details) - Narrative - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Reinsurance recoverables, credit quality indicator    
Reinsurance recoverables, after deducting mandatory pools and associations and before allowances for expected credit losses   $ 8,119
Reinsurer Concentration Risk [Member] | Reinsurance Recoverables [Member] | Reinsurer Group Rated by A.M. Best [Member] | A.M. Best, Rating Provided [Member]    
Reinsurance recoverables, credit quality indicator    
Reinsurance recoverables, after deducting mandatory pools and associations and before allowances for expected credit losses $ 6,090  
Concentration risk percentage 89.00%  
Reinsurer Concentration Risk [Member] | Reinsurance Recoverables [Member] | Reinsurer Group Not Rated by A.M. Best [Member]    
Reinsurance recoverables, credit quality indicator    
Concentration risk percentage 11.00%  
Reinsurer Concentration Risk [Member] | Reinsurance Recoverables [Member] | Captive Insurance Companies [Member]    
Reinsurance recoverables, credit quality indicator    
Concentration risk percentage 6.00%  
Reinsurer Concentration Risk [Member] | Reinsurance Recoverables [Member] | Voluntary Pools [Member]    
Reinsurance recoverables, credit quality indicator    
Concentration risk percentage 1.00%  
Reinsurer Concentration Risk [Member] | Reinsurance Recoverables [Member] | Other Companies [Member]    
Reinsurance recoverables, credit quality indicator    
Concentration risk percentage 4.00%  
Reinsurer Concentration Risk [Member] | Reinsurance Recoverables Rated by A.M. Best [Member] | Reinsurer Group Rated by A.M. Best [Member] | A.M. Best, A- Rating Or Better [Member]    
Reinsurance recoverables, credit quality indicator    
Concentration risk percentage 95.00%  
v3.25.4
Allowance for Expected Credit Losses (Details) - Changes in the Allowance for Expected Credit Losses on Contractholder Receivables - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Credit Loss [Abstract]    
Contractholder receivables (net of the allowance for expected credit losses), balance, beginning of period $ 3,171 $ 3,249
Contractholder receivables (net of the allowance for expected credit losses), balance, end of period 3,010 3,171
Contractholder receivables, allowance for expected credit losses [Roll Forward]    
Contractholder receivables, allowance for expected credit losses, beginning balance 18 20
Current period change for expected credit losses (2) (2)
Write-offs of uncollectible contractholder receivables 0 0
Contractholder receivables, allowance for expected credit losses, ending balance $ 16 $ 18
v3.25.4
Reinsurance (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Reinsurance Disclosures [Abstract]      
Percentage of residual market business written directly by the Company for mandatory pools and associations and then ceded to the mandatory pool 100.00%    
Written premiums, direct $ 45,594 $ 44,377 $ 40,983
Written premiums, assumed 2,136 2,173 1,989
Written premiums, ceded (3,343) (3,194) (2,771)
Total net written premiums 44,387 43,356 40,201
Earned premiums, direct 45,042 42,983 38,796
Earned premiums, assumed 2,110 2,095 1,614
Earned premiums, ceded (3,238) (3,137) (2,649)
Total net earned premiums $ 43,914 $ 41,941 $ 37,761
Percentage of assumed earned premiums to net earned premiums 4.80% 5.00% 4.30%
Ceded claims and claim adjustment expenses incurred $ 1,679 $ 1,249 $ 1,462
Reinsurance Recoverables      
Gross reinsurance recoverables on paid and unpaid claims and claim adjustment expenses excluding structured settlements and mandatory pools and associations   3,962  
Gross structured settlements   2,626  
Mandatory pools and associations   1,531  
Gross reinsurance recoverables   8,119  
Allowance for estimated uncollectible reinsurance (129) (119) (118)
Net reinsurance recoverables 7,886 $ 8,000 $ 8,143
Terrorism Risk Insurance Program, annual aggregate industry loss minimum in order for a loss to be covered $ 200    
Terrorism Risk Insurance Program, percentage of subject losses reimbursed by the Federal Government, after insurer deductible, subject to annual cap 80.00%    
Terrorism Risk Insurance Program, percentage of insurer's direct earned premiums for covered lines for the preceding calendar year at which the deductible is set 20.00%    
Terrorism Risk Insurance Program, Company's estimated deductible for the next fiscal year $ 4,010    
Terrorism Risk Insurance Program, annual cap limiting amount of aggregate subject losses for all participating insurers 100,000    
Terrorism Risk Insurance Program, terrorism-related losses triggering program coverage since program was established 0    
Before Reclassifications of Held For Sale [Member]      
Reinsurance Recoverables      
Gross reinsurance recoverables on paid and unpaid claims and claim adjustment expenses excluding structured settlements and mandatory pools and associations 4,352    
Gross structured settlements 2,469    
Mandatory pools and associations 1,485    
Gross reinsurance recoverables 8,306    
Allowance for estimated uncollectible reinsurance (135)    
Held for Sale Reclassification [Member]      
Reinsurance Recoverables      
Net reinsurance recoverables $ (285)    
v3.25.4
Goodwill and Other Intangible Assets (Details) - Goodwill - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Goodwill by segment    
Goodwill $ 4,066 $ 4,233
Reportable segments [Member] | Business Insurance [Member]    
Goodwill by segment    
Goodwill   2,572
Reportable segments [Member] | Bond & Specialty Insurance [Member]    
Goodwill by segment    
Goodwill   834
Reportable segments [Member] | Personal Insurance [Member]    
Goodwill by segment    
Goodwill   801
Other [Member]    
Goodwill by segment    
Goodwill   $ 26
Before Reclassifications of Held For Sale [Member] | Reportable segments [Member] | Business Insurance [Member]    
Goodwill by segment    
Goodwill 2,601  
Before Reclassifications of Held For Sale [Member] | Reportable segments [Member] | Bond & Specialty Insurance [Member]    
Goodwill by segment    
Goodwill 838  
Before Reclassifications of Held For Sale [Member] | Reportable segments [Member] | Personal Insurance [Member]    
Goodwill by segment    
Goodwill 809  
Before Reclassifications of Held For Sale [Member] | Other [Member]    
Goodwill by segment    
Goodwill 26  
Held for Sale Reclassification [Member]    
Goodwill by segment    
Goodwill $ (208)  
v3.25.4
Goodwill and Other Intangible Assets (Details) - Other Intangible Assets - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Other intangible assets by major asset class      
Intangible assets subject to amortization, gross carrying amount   $ 407  
Intangible assets subject to amortization, accumulated amortization $ 293 273  
Intangible assets subject to amortization, net   134  
Intangible assets not subject to amortization   226  
Total other intangible assets, gross carrying amount 629 633  
Total other intangible assets, net 336 360  
Amortization expense of intangible assets 20 21 $ 12
Estimated intangible asset amortization expense, 2026 20    
Estimated intangible asset amortization expense, 2027 17    
Estimated intangible asset amortization expense, 2028 9    
Estimated intangible asset amortization expense, 2029 8    
Estimated intangible asset amortization expense, 2030 8    
Customer-related [Member]      
Other intangible assets by major asset class      
Intangible assets subject to amortization, gross carrying amount   185  
Intangible assets subject to amortization, accumulated amortization   74  
Intangible assets subject to amortization, net   111  
Contract-based [Member]      
Other intangible assets by major asset class      
Intangible assets subject to amortization, gross carrying amount   204  
Intangible assets subject to amortization, accumulated amortization   196  
Intangible assets subject to amortization, net   8  
Marketing-related [Member]      
Other intangible assets by major asset class      
Intangible assets subject to amortization, gross carrying amount   18  
Intangible assets subject to amortization, accumulated amortization   3  
Intangible assets subject to amortization, net   $ 15  
Before Reclassifications of Held For Sale [Member]      
Other intangible assets by major asset class      
Intangible assets subject to amortization, gross carrying amount 408    
Intangible assets subject to amortization, accumulated amortization 297    
Intangible assets subject to amortization, net 111    
Intangible assets not subject to amortization 226    
Before Reclassifications of Held For Sale [Member] | Customer-related [Member]      
Other intangible assets by major asset class      
Intangible assets subject to amortization, gross carrying amount 186    
Intangible assets subject to amortization, accumulated amortization 93    
Intangible assets subject to amortization, net 93    
Before Reclassifications of Held For Sale [Member] | Contract-based [Member]      
Other intangible assets by major asset class      
Intangible assets subject to amortization, gross carrying amount 204    
Intangible assets subject to amortization, accumulated amortization 198    
Intangible assets subject to amortization, net 6    
Before Reclassifications of Held For Sale [Member] | Marketing-related [Member]      
Other intangible assets by major asset class      
Intangible assets subject to amortization, gross carrying amount 18    
Intangible assets subject to amortization, accumulated amortization 6    
Intangible assets subject to amortization, net 12    
Held for Sale Reclassification [Member]      
Other intangible assets by major asset class      
Intangible assets subject to amortization, accumulated amortization (4)    
Total other intangible assets, gross carrying amount (5)    
Total other intangible assets, net $ (1)    
v3.25.4
Insurance Claim Reserves (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Reconciliation of beginning and ending reserve balances for claims and claim adjustment expenses [Roll Forward]      
Claims and claim adjustment expense reserves at beginning of year $ 64,093    
Net reserves at end of year 58,219    
Reinsurance recoverables on unpaid losses 7,518    
Claims and claim adjustment expense reserves at end of year 65,737 $ 64,093  
Property-casualty [Member]      
Reconciliation of beginning and ending reserve balances for claims and claim adjustment expenses [Roll Forward]      
Claims and claim adjustment expense reserves at beginning of year 64,088 61,621 $ 58,643
Reinsurance recoverables on unpaid losses 7,669 7,817 7,790
Net reserves at beginning of year 56,419 53,804 50,853
Estimated claims and claim adjustment expenses for claims arising in the current year 28,051 27,508 26,159
Estimated decrease in claims and claim adjustment expenses for claims arising in prior years (939) (548) (38)
Total increases 27,112 26,960 26,121
Claims and claim adjustment expense payments for claims arising in current year 10,606 10,924 10,852
Claims and claim adjustment expense payments for claims arising in prior years 13,307 13,227 12,424
Total payments 23,913 24,151 23,276
Unrealized foreign exchange (gain) loss 228 (194) 106
Net reserves at end of year   56,419 53,804
Reinsurance recoverables on unpaid losses   7,669 7,817
Claims and claim adjustment expense reserves at end of year   64,088 61,621
Amount of increase in gross claims and claim adjustment expense reserves 3,560 2,470  
Amount of increase (decrease) in reinsurance recoverables on unpaid losses 128 (148)  
Reserves for long-term disability and annuity claim payments primarily arising from workers' compensation insurance and workers' compensation excess insurance policies, net of discount 2,610 2,650  
Discount included in reserves for long-term disability and annuity claim payments primarily arising from workers' compensation insurance and workers' compensation excess insurance policies 1,030 1,070  
Accretion expense $ 43 $ 44 $ 45
Property-casualty [Member] | Minimum [Member]      
Reconciliation of beginning and ending reserve balances for claims and claim adjustment expenses [Roll Forward]      
Reserves for long-term disability and annuity claim payments primarily arising from workers' compensation insurance and workers' compensation excess insurance policies, discount rate (percent) 3.50% 3.50%  
Property-casualty [Member] | Maximum [Member]      
Reconciliation of beginning and ending reserve balances for claims and claim adjustment expenses [Roll Forward]      
Reserves for long-term disability and annuity claim payments primarily arising from workers' compensation insurance and workers' compensation excess insurance policies, discount rate (percent) 5.00% 5.00%  
Accident and health [Member]      
Reconciliation of beginning and ending reserve balances for claims and claim adjustment expenses [Roll Forward]      
Claims and claim adjustment expense reserves at beginning of year $ 5    
Net reserves at end of year 0    
Reinsurance recoverables on unpaid losses 3    
Claims and claim adjustment expense reserves at end of year 3 $ 5  
Before Reclassifications of Held For Sale [Member] | Property-casualty [Member]      
Reconciliation of beginning and ending reserve balances for claims and claim adjustment expenses [Roll Forward]      
Net reserves at end of year 59,846    
Reinsurance recoverables on unpaid losses 7,797    
Claims and claim adjustment expense reserves at end of year 67,643    
Held for Sale Reclassification [Member]      
Reconciliation of beginning and ending reserve balances for claims and claim adjustment expenses [Roll Forward]      
Net reserves at end of year (1,627)    
Reinsurance recoverables on unpaid losses (282)    
Claims and claim adjustment expense reserves at end of year $ (1,909)    
v3.25.4
Insurance Claim Reserves (Details) - Prior Year Reserve Development - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Asbestos reserves [Member]      
Liability for claims and claim adjustment expense      
Increase to reserves $ 277 $ 242 $ 284
Property-casualty [Member]      
Liability for claims and claim adjustment expense      
Net favorable development included in estimated claims and claim adjustment expenses incurred for claims arising in prior years 939 548 38
Net favorable (unfavorable) prior year reserve development impacting the Company's results of operations 1,040 709 143
Accretion expense 43 44 45
Property-casualty [Member] | Business Insurance [Member]      
Liability for claims and claim adjustment expense      
Net favorable (unfavorable) prior year reserve development impacting the Company's results of operations 233 90 (289)
Property-casualty [Member] | Business Insurance [Member] | Asbestos reserves [Member]      
Liability for claims and claim adjustment expense      
Increase to reserves 277 242 284
Property-casualty [Member] | Bond & Specialty Insurance [Member]      
Liability for claims and claim adjustment expense      
Net favorable (unfavorable) prior year reserve development impacting the Company's results of operations 221 129 285
Property-casualty [Member] | Personal Insurance [Member]      
Liability for claims and claim adjustment expense      
Net favorable (unfavorable) prior year reserve development impacting the Company's results of operations $ 582 $ 490 $ 147
v3.25.4
Insurance Claim Reserves (Details) - Claims and Claim Adjustment Expenses Reserves Summary - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves $ 59,215      
Discount (Net of Reinsurance) (996)      
Subtotal: Net Claims and Claim Adjustment Expense Reserves 58,219      
Reinsurance Recoverables on Unpaid Losses 7,518      
Claims and Claim Adjustment Expense Reserves 65,737 $ 64,093    
Discount on reinsurance recoverables for long-term disability and annuity claim payments included in discount (net of reinsurance) 31      
Reinsurance recoverables 7,886 8,000 $ 8,143  
Property-casualty [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Subtotal: Net Claims and Claim Adjustment Expense Reserves   56,419 53,804 $ 50,853
Reinsurance Recoverables on Unpaid Losses   7,669 7,817 7,790
Claims and Claim Adjustment Expense Reserves   64,088 $ 61,621 $ 58,643
Accident and health [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 0      
Discount (Net of Reinsurance) 0      
Subtotal: Net Claims and Claim Adjustment Expense Reserves 0      
Reinsurance Recoverables on Unpaid Losses 3      
Claims and Claim Adjustment Expense Reserves 3 $ 5    
Business Insurance [Member] | General liability [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 12,063      
Business Insurance [Member] | Commercial property [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 1,299      
Business Insurance [Member] | Commercial multi-peril [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 6,275      
Business Insurance [Member] | Automobile [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 5,474      
Business Insurance [Member] | Workers' compensation [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 15,560      
Bond & Specialty Insurance [Member] | General liability [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 2,967      
Bond & Specialty Insurance [Member] | Fidelity and surety [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 740      
Personal Insurance [Member] | Automobile [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 4,258      
Personal Insurance [Member] | Homeowners (excluding Other) [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 2,638      
Reportable segments [Member] | Business Insurance [Member] | General liability [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 12,063      
Discount (Net of Reinsurance) (121)      
Subtotal: Net Claims and Claim Adjustment Expense Reserves 11,942      
Reinsurance Recoverables on Unpaid Losses 1,496      
Claims and Claim Adjustment Expense Reserves 13,438      
Reportable segments [Member] | Business Insurance [Member] | Commercial property [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 1,299      
Discount (Net of Reinsurance) 0      
Subtotal: Net Claims and Claim Adjustment Expense Reserves 1,299      
Reinsurance Recoverables on Unpaid Losses 296      
Claims and Claim Adjustment Expense Reserves 1,595      
Reportable segments [Member] | Business Insurance [Member] | Commercial multi-peril [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 6,275      
Discount (Net of Reinsurance) 0      
Subtotal: Net Claims and Claim Adjustment Expense Reserves 6,275      
Reinsurance Recoverables on Unpaid Losses 317      
Claims and Claim Adjustment Expense Reserves 6,592      
Reportable segments [Member] | Business Insurance [Member] | Automobile [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 5,474      
Discount (Net of Reinsurance) 0      
Subtotal: Net Claims and Claim Adjustment Expense Reserves 5,474      
Reinsurance Recoverables on Unpaid Losses 324      
Claims and Claim Adjustment Expense Reserves 5,798      
Reportable segments [Member] | Business Insurance [Member] | Workers' compensation [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 15,560      
Discount (Net of Reinsurance) (870)      
Subtotal: Net Claims and Claim Adjustment Expense Reserves 14,690      
Reinsurance Recoverables on Unpaid Losses 531      
Claims and Claim Adjustment Expense Reserves 15,221      
Reportable segments [Member] | Bond & Specialty Insurance [Member] | General liability [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 2,967      
Discount (Net of Reinsurance) 0      
Subtotal: Net Claims and Claim Adjustment Expense Reserves 2,967      
Reinsurance Recoverables on Unpaid Losses 364      
Claims and Claim Adjustment Expense Reserves 3,331      
Reportable segments [Member] | Bond & Specialty Insurance [Member] | Fidelity and surety [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 740      
Discount (Net of Reinsurance) 0      
Subtotal: Net Claims and Claim Adjustment Expense Reserves 740      
Reinsurance Recoverables on Unpaid Losses 12      
Claims and Claim Adjustment Expense Reserves 752      
Reportable segments [Member] | Personal Insurance [Member] | Automobile [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 4,258      
Discount (Net of Reinsurance) 0      
Subtotal: Net Claims and Claim Adjustment Expense Reserves 4,258      
Reinsurance Recoverables on Unpaid Losses 306      
Claims and Claim Adjustment Expense Reserves 4,564      
Reportable segments [Member] | Personal Insurance [Member] | Homeowners (excluding Other) [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 2,638      
Discount (Net of Reinsurance) 0      
Subtotal: Net Claims and Claim Adjustment Expense Reserves 2,638      
Reinsurance Recoverables on Unpaid Losses 13      
Claims and Claim Adjustment Expense Reserves 2,651      
Before Reclassifications of Held For Sale [Member] | Property-casualty [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 60,842      
Discount (Net of Reinsurance) (996)      
Subtotal: Net Claims and Claim Adjustment Expense Reserves 59,846      
Reinsurance Recoverables on Unpaid Losses 7,797      
Claims and Claim Adjustment Expense Reserves 67,643      
Before Reclassifications of Held For Sale [Member] | Personal Insurance [Member] | International - Canada [Member] | Property-casualty [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 847      
Before Reclassifications of Held For Sale [Member] | Reportable segments [Member] | Property-casualty [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 52,121      
Discount (Net of Reinsurance) (991)      
Subtotal: Net Claims and Claim Adjustment Expense Reserves 51,130      
Reinsurance Recoverables on Unpaid Losses 3,672      
Claims and Claim Adjustment Expense Reserves 54,802      
Before Reclassifications of Held For Sale [Member] | Reportable segments [Member] | Personal Insurance [Member] | International - Canada [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 847      
Discount (Net of Reinsurance) 0      
Subtotal: Net Claims and Claim Adjustment Expense Reserves 847      
Reinsurance Recoverables on Unpaid Losses 13      
Claims and Claim Adjustment Expense Reserves 860      
Before Reclassifications of Held For Sale [Member] | Reconciling Items [Member] | Other insurance contracts [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 5,561      
Discount (Net of Reinsurance) (5)      
Subtotal: Net Claims and Claim Adjustment Expense Reserves 5,556      
Reinsurance Recoverables on Unpaid Losses 1,763      
Claims and Claim Adjustment Expense Reserves 7,319      
Before Reclassifications of Held For Sale [Member] | Reconciling Items [Member] | Unallocated loss adjustment expense reserves [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 3,061      
Discount (Net of Reinsurance) 0      
Subtotal: Net Claims and Claim Adjustment Expense Reserves 3,061      
Reinsurance Recoverables on Unpaid Losses 18      
Claims and Claim Adjustment Expense Reserves 3,079      
Before Reclassifications of Held For Sale [Member] | Reconciling Items [Member] | Structured settlements [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 0      
Discount (Net of Reinsurance) 0      
Subtotal: Net Claims and Claim Adjustment Expense Reserves 0      
Reinsurance Recoverables on Unpaid Losses 2,428      
Claims and Claim Adjustment Expense Reserves 2,428      
Before Reclassifications of Held For Sale [Member] | Reconciling Items [Member] | Other [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves 99      
Discount (Net of Reinsurance) 0      
Subtotal: Net Claims and Claim Adjustment Expense Reserves 99      
Reinsurance Recoverables on Unpaid Losses (84)      
Claims and Claim Adjustment Expense Reserves 15      
Held for Sale Reclassification [Member]        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability        
Net Undiscounted Claims and Claim Adjustment Expense Reserves (1,627)      
Discount (Net of Reinsurance) 0      
Subtotal: Net Claims and Claim Adjustment Expense Reserves (1,627)      
Reinsurance Recoverables on Unpaid Losses (282)      
Claims and Claim Adjustment Expense Reserves (1,909)      
Reinsurance recoverables $ (285)      
v3.25.4
Insurance Claim Reserves (Details) - Claim Development
$ in Millions
Dec. 31, 2025
USD ($)
claims
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Claims Development                    
Total net liability (Audited) $ 59,215                  
Business Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 18,197                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 9,215                  
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Disclosed Accident Years (Audited) 8,982                  
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Before Disclosed Accident Years (Audited) 3,081                  
Total net liability (Audited) 12,063                  
Business Insurance [Member] | Commercial property [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 6,620                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 5,430                  
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Disclosed Accident Years (Audited) 1,190                  
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Before Disclosed Accident Years (Audited) 109                  
Total net liability (Audited) 1,299                  
Business Insurance [Member] | Commercial multi-peril [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 23,141                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 17,268                  
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Disclosed Accident Years (Audited) 5,873                  
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Before Disclosed Accident Years (Audited) 402                  
Total net liability (Audited) 6,275                  
Business Insurance [Member] | Automobile [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 11,326                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 6,185                  
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Disclosed Accident Years (Audited) 5,141                  
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Before Disclosed Accident Years (Audited) 333                  
Total net liability (Audited) 5,474                  
Business Insurance [Member] | Workers' compensation [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 22,218                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 12,923                  
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Disclosed Accident Years (Audited) 9,295                  
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Before Disclosed Accident Years (Audited) 6,265                  
Total net liability (Audited) 15,560                  
Bond & Specialty Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 7,408                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 4,509                  
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Disclosed Accident Years (Audited) 2,899                  
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Before Disclosed Accident Years (Audited) 68                  
Total net liability (Audited) 2,967                  
Bond & Specialty Insurance [Member] | Fidelity and surety [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,218                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 563                  
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Disclosed Accident Years (Audited) 655                  
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Before Disclosed Accident Years (Audited) 85                  
Total net liability (Audited) 740                  
Personal Insurance [Member] | Automobile [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 23,179                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 19,105                  
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Disclosed Accident Years (Audited) 4,074                  
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Before Disclosed Accident Years (Audited) 184                  
Total net liability (Audited) 4,258                  
Personal Insurance [Member] | Homeowners (excluding Other) [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 22,556                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 19,956                  
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Disclosed Accident Years (Audited) 2,600                  
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Before Disclosed Accident Years (Audited) 38                  
Total net liability (Audited) 2,638                  
Personal Insurance [Member] | International - Canada [Member] | Property-casualty [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 3,968                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 3,150                  
Short-duration Insurance Contracts, Accident Year 2016 [Member] | Business Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,185 $ 1,173 $ 1,183 $ 1,185 $ 1,179 $ 1,204 $ 1,187 $ 1,087 $ 1,058 $ 1,075
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,072 1,031 991 951 858 758 649 421 191 35
IBNR Reserves Dec. 31, 2025 (Audited) $ 85                  
Cumulative Number of Reported Claims (Audited) | claims 21,090                  
Short-duration Insurance Contracts, Accident Year 2016 [Member] | Business Insurance [Member] | Commercial multi-peril [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 1,602 1,590 1,578 1,579 1,587 1,601 1,590 1,598 1,623 1,662
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,559 1,547 1,510 1,477 1,437 1,373 1,278 1,133 950 585
IBNR Reserves Dec. 31, 2025 (Audited) $ 24                  
Cumulative Number of Reported Claims (Audited) | claims 69,716                  
Short-duration Insurance Contracts, Accident Year 2016 [Member] | Business Insurance [Member] | Workers' compensation [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,092 2,111 2,151 2,235 2,300 2,372 2,473 2,569 2,690 2,768
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,579 1,553 1,522 1,486 1,433 1,367 1,272 1,118 873 421
IBNR Reserves Dec. 31, 2025 (Audited) $ 216                  
Cumulative Number of Reported Claims (Audited) | claims 132,524                  
Short-duration Insurance Contracts, Accident Year 2016 [Member] | Bond & Specialty Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 513 512 509 511 510 514 520 504 511 512
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 480 479 472 463 446 378 313 233 141 30
IBNR Reserves Dec. 31, 2025 (Audited) $ 13                  
Cumulative Number of Reported Claims (Audited) | claims 4,421                  
Short-duration Insurance Contracts, Accident Year 2016 [Member] | Personal Insurance [Member] | International - Canada [Member] | Property-casualty [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 399 398 397 396 395 396 396 387 386 341
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 391 388 381 376 364 347 325 292 268 $ 200
IBNR Reserves Dec. 31, 2025 (Audited) $ 1                  
Cumulative Number of Reported Claims (Audited) | claims 45,503                  
Short-duration Insurance Contracts, Accident Year 2017 [Member] | Business Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 1,313 1,306 1,288 1,243 1,226 1,234 1,196 1,143 1,133  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,172 1,111 1,029 914 724 552 378 180 40  
IBNR Reserves Dec. 31, 2025 (Audited) $ 98                  
Cumulative Number of Reported Claims (Audited) | claims 19,983                  
Short-duration Insurance Contracts, Accident Year 2017 [Member] | Business Insurance [Member] | Commercial multi-peril [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 1,929 1,928 1,930 1,943 1,935 1,919 1,956 1,928 1,872  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,865 1,843 1,815 1,763 1,674 1,531 1,388 1,199 716  
IBNR Reserves Dec. 31, 2025 (Audited) $ 37                  
Cumulative Number of Reported Claims (Audited) | claims 72,872                  
Short-duration Insurance Contracts, Accident Year 2017 [Member] | Business Insurance [Member] | Workers' compensation [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,167 2,190 2,243 2,342 2,439 2,483 2,584 2,681 2,779  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,612 1,585 1,544 1,490 1,418 1,314 1,154 890 433  
IBNR Reserves Dec. 31, 2025 (Audited) $ 290                  
Cumulative Number of Reported Claims (Audited) | claims 130,310                  
Short-duration Insurance Contracts, Accident Year 2017 [Member] | Bond & Specialty Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 574 582 565 554 524 493 526 517 534  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 530 513 488 450 404 340 262 155 38  
IBNR Reserves Dec. 31, 2025 (Audited) $ 37                  
Cumulative Number of Reported Claims (Audited) | claims 4,626                  
Short-duration Insurance Contracts, Accident Year 2017 [Member] | Personal Insurance [Member] | International - Canada [Member] | Property-casualty [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 380 380 386 384 381 381 381 360 327  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 374 369 361 348 328 303 280 243 $ 172  
IBNR Reserves Dec. 31, 2025 (Audited) $ (3)                  
Cumulative Number of Reported Claims (Audited) | claims 46,520                  
Short-duration Insurance Contracts, Accident Year 2018 [Member] | Business Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 1,604 1,571 1,530 1,477 1,395 1,344 1,312 1,253    
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,367 1,270 1,146 939 709 441 202 42    
IBNR Reserves Dec. 31, 2025 (Audited) $ 122                  
Cumulative Number of Reported Claims (Audited) | claims 20,194                  
Short-duration Insurance Contracts, Accident Year 2018 [Member] | Business Insurance [Member] | Commercial multi-peril [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,136 2,125 2,127 2,121 2,112 2,092 2,114 1,976    
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 2,021 1,986 1,917 1,815 1,669 1,500 1,302 792    
IBNR Reserves Dec. 31, 2025 (Audited) $ 46                  
Cumulative Number of Reported Claims (Audited) | claims 80,732                  
Short-duration Insurance Contracts, Accident Year 2018 [Member] | Business Insurance [Member] | Workers' compensation [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,194 2,245 2,318 2,416 2,503 2,599 2,687 2,744    
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,616 1,578 1,516 1,440 1,330 1,169 919 440    
IBNR Reserves Dec. 31, 2025 (Audited) $ 313                  
Cumulative Number of Reported Claims (Audited) | claims 132,689                  
Short-duration Insurance Contracts, Accident Year 2018 [Member] | Bond & Specialty Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 624 636 612 605 595 585 548 530    
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 567 559 504 458 383 290 182 49    
IBNR Reserves Dec. 31, 2025 (Audited) $ 19                  
Cumulative Number of Reported Claims (Audited) | claims 4,895                  
Short-duration Insurance Contracts, Accident Year 2018 [Member] | Personal Insurance [Member] | International - Canada [Member] | Property-casualty [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 442 445 448 445 442 438 436 415    
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 425 418 405 388 358 321 288 $ 207    
IBNR Reserves Dec. 31, 2025 (Audited) $ (4)                  
Cumulative Number of Reported Claims (Audited) | claims 50,331                  
Short-duration Insurance Contracts, Accident Year 2019 [Member] | Business Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 1,752 1,698 1,706 1,567 1,498 1,486 1,447      
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,416 1,276 1,074 816 482 233 51      
IBNR Reserves Dec. 31, 2025 (Audited) $ 181                  
Cumulative Number of Reported Claims (Audited) | claims 19,972                  
Short-duration Insurance Contracts, Accident Year 2019 [Member] | Business Insurance [Member] | Commercial multi-peril [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,102 2,110 2,103 2,103 2,089 2,087 2,017      
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,973 1,916 1,801 1,628 1,423 1,187 707      
IBNR Reserves Dec. 31, 2025 (Audited) $ 49                  
Cumulative Number of Reported Claims (Audited) | claims 77,552                  
Short-duration Insurance Contracts, Accident Year 2019 [Member] | Business Insurance [Member] | Workers' compensation [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,355 2,424 2,521 2,632 2,699 2,714 2,680      
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,639 1,593 1,518 1,402 1,229 951 466      
IBNR Reserves Dec. 31, 2025 (Audited) $ 369                  
Cumulative Number of Reported Claims (Audited) | claims 129,611                  
Short-duration Insurance Contracts, Accident Year 2019 [Member] | Bond & Specialty Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 646 654 662 670 665 653 588      
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 582 554 513 410 323 189 51      
IBNR Reserves Dec. 31, 2025 (Audited) $ 25                  
Cumulative Number of Reported Claims (Audited) | claims 5,517                  
Short-duration Insurance Contracts, Accident Year 2019 [Member] | Personal Insurance [Member] | International - Canada [Member] | Property-casualty [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 438 444 439 438 435 415 420      
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 410 398 373 344 307 273 $ 204      
IBNR Reserves Dec. 31, 2025 (Audited) $ 5                  
Cumulative Number of Reported Claims (Audited) | claims 47,923                  
Short-duration Insurance Contracts, Accident Year 2020 [Member] | Business Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 1,570 1,568 1,577 1,470 1,493 1,467        
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,179 1,031 770 458 244 61        
IBNR Reserves Dec. 31, 2025 (Audited) $ 226                  
Cumulative Number of Reported Claims (Audited) | claims 23,456                  
Short-duration Insurance Contracts, Accident Year 2020 [Member] | Business Insurance [Member] | Commercial multi-peril [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,041 2,061 2,111 2,126 2,141 2,142        
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,791 1,687 1,547 1,373 1,180 791        
IBNR Reserves Dec. 31, 2025 (Audited) $ 144                  
Cumulative Number of Reported Claims (Audited) | claims 70,943                  
Short-duration Insurance Contracts, Accident Year 2020 [Member] | Business Insurance [Member] | Workers' compensation [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,025 2,152 2,271 2,433 2,530 2,559        
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,342 1,273 1,164 1,017 794 389        
IBNR Reserves Dec. 31, 2025 (Audited) $ 362                  
Cumulative Number of Reported Claims (Audited) | claims 102,671                  
Short-duration Insurance Contracts, Accident Year 2020 [Member] | Bond & Specialty Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 673 684 698 741 753 772        
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 564 525 447 333 210 52        
IBNR Reserves Dec. 31, 2025 (Audited) $ 70                  
Cumulative Number of Reported Claims (Audited) | claims 5,528                  
Short-duration Insurance Contracts, Accident Year 2020 [Member] | Personal Insurance [Member] | International - Canada [Member] | Property-casualty [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 292 294 296 302 315 328        
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 255 245 225 206 183 $ 136        
IBNR Reserves Dec. 31, 2025 (Audited) $ 7                  
Cumulative Number of Reported Claims (Audited) | claims 30,038                  
Short-duration Insurance Contracts, Accident Year 2021 [Member] | Business Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 1,711 1,711 1,628 1,589 1,591          
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,100 826 493 231 67          
IBNR Reserves Dec. 31, 2025 (Audited) $ 383                  
Cumulative Number of Reported Claims (Audited) | claims 16,269                  
Short-duration Insurance Contracts, Accident Year 2021 [Member] | Business Insurance [Member] | Commercial property [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 1,207 1,201 1,190 1,190 1,236          
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,176 1,169 1,141 1,068 645          
IBNR Reserves Dec. 31, 2025 (Audited) $ 15                  
Cumulative Number of Reported Claims (Audited) | claims 25,814                  
Short-duration Insurance Contracts, Accident Year 2021 [Member] | Business Insurance [Member] | Commercial multi-peril [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,084 2,107 2,097 2,097 2,164          
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,764 1,616 1,437 1,206 744          
IBNR Reserves Dec. 31, 2025 (Audited) $ 157                  
Cumulative Number of Reported Claims (Audited) | claims 59,084                  
Short-duration Insurance Contracts, Accident Year 2021 [Member] | Business Insurance [Member] | Automobile [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 1,789 1,800 1,786 1,757 1,741          
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,591 1,405 1,135 800 453          
IBNR Reserves Dec. 31, 2025 (Audited) $ 92                  
Cumulative Number of Reported Claims (Audited) | claims 149,271                  
Short-duration Insurance Contracts, Accident Year 2021 [Member] | Business Insurance [Member] | Workers' compensation [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,166 2,237 2,294 2,349 2,356          
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,341 1,234 1,076 848 427          
IBNR Reserves Dec. 31, 2025 (Audited) $ 419                  
Cumulative Number of Reported Claims (Audited) | claims 96,412                  
Short-duration Insurance Contracts, Accident Year 2021 [Member] | Bond & Specialty Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 654 659 683 756 812          
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 461 401 316 210 78          
IBNR Reserves Dec. 31, 2025 (Audited) $ 86                  
Cumulative Number of Reported Claims (Audited) | claims 5,769                  
Short-duration Insurance Contracts, Accident Year 2021 [Member] | Bond & Specialty Insurance [Member] | Fidelity and surety [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 76 87 93 172 284          
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 57 58 57 50 25          
IBNR Reserves Dec. 31, 2025 (Audited) $ 18                  
Cumulative Number of Reported Claims (Audited) | claims 612                  
Short-duration Insurance Contracts, Accident Year 2021 [Member] | Personal Insurance [Member] | Automobile [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 3,703 3,724 3,751 3,770 3,716          
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 3,628 3,541 3,350 2,981 2,062          
IBNR Reserves Dec. 31, 2025 (Audited) $ 29                  
Cumulative Number of Reported Claims (Audited) | claims 1,001,126                  
Short-duration Insurance Contracts, Accident Year 2021 [Member] | Personal Insurance [Member] | Homeowners (excluding Other) [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 3,397 3,423 3,444 3,486 3,463          
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 3,380 3,372 3,344 3,235 2,334          
IBNR Reserves Dec. 31, 2025 (Audited) $ (3)                  
Cumulative Number of Reported Claims (Audited) | claims 234,160                  
Short-duration Insurance Contracts, Accident Year 2021 [Member] | Personal Insurance [Member] | International - Canada [Member] | Property-casualty [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 300 307 310 317 329          
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 248 226 206 178 $ 121          
IBNR Reserves Dec. 31, 2025 (Audited) $ 15                  
Cumulative Number of Reported Claims (Audited) | claims 28,063                  
Short-duration Insurance Contracts, Accident Year 2022 [Member] | Business Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,014 1,916 1,736 1,696            
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,042 668 302 81            
IBNR Reserves Dec. 31, 2025 (Audited) $ 620                  
Cumulative Number of Reported Claims (Audited) | claims 19,494                  
Short-duration Insurance Contracts, Accident Year 2022 [Member] | Business Insurance [Member] | Commercial property [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 1,343 1,372 1,369 1,309            
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,272 1,247 1,113 624            
IBNR Reserves Dec. 31, 2025 (Audited) $ (3)                  
Cumulative Number of Reported Claims (Audited) | claims 28,976                  
Short-duration Insurance Contracts, Accident Year 2022 [Member] | Business Insurance [Member] | Commercial multi-peril [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,569 2,569 2,533 2,502            
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,965 1,752 1,476 817            
IBNR Reserves Dec. 31, 2025 (Audited) $ 280                  
Cumulative Number of Reported Claims (Audited) | claims 55,514                  
Short-duration Insurance Contracts, Accident Year 2022 [Member] | Business Insurance [Member] | Automobile [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,059 2,050 2,040 1,939            
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,607 1,324 966 540            
IBNR Reserves Dec. 31, 2025 (Audited) $ 209                  
Cumulative Number of Reported Claims (Audited) | claims 160,802                  
Short-duration Insurance Contracts, Accident Year 2022 [Member] | Business Insurance [Member] | Workers' compensation [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,148 2,226 2,294 2,293            
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,242 1,081 830 388            
IBNR Reserves Dec. 31, 2025 (Audited) $ 476                  
Cumulative Number of Reported Claims (Audited) | claims 103,197                  
Short-duration Insurance Contracts, Accident Year 2022 [Member] | Bond & Specialty Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 689 727 763 803            
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 405 335 212 69            
IBNR Reserves Dec. 31, 2025 (Audited) $ 180                  
Cumulative Number of Reported Claims (Audited) | claims 5,206                  
Short-duration Insurance Contracts, Accident Year 2022 [Member] | Bond & Specialty Insurance [Member] | Fidelity and surety [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 148 187 261 310            
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 118 99 82 36            
IBNR Reserves Dec. 31, 2025 (Audited) $ 21                  
Cumulative Number of Reported Claims (Audited) | claims 757                  
Short-duration Insurance Contracts, Accident Year 2022 [Member] | Personal Insurance [Member] | Automobile [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 4,686 4,729 4,784 4,755            
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 4,485 4,278 3,855 2,683            
IBNR Reserves Dec. 31, 2025 (Audited) $ 80                  
Cumulative Number of Reported Claims (Audited) | claims 1,132,092                  
Short-duration Insurance Contracts, Accident Year 2022 [Member] | Personal Insurance [Member] | Homeowners (excluding Other) [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 4,145 4,146 4,184 4,277            
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 4,084 4,018 3,828 2,537            
IBNR Reserves Dec. 31, 2025 (Audited) $ 24                  
Cumulative Number of Reported Claims (Audited) | claims 236,736                  
Short-duration Insurance Contracts, Accident Year 2022 [Member] | Personal Insurance [Member] | International - Canada [Member] | Property-casualty [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 370 377 373 365            
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 286 260 231 $ 159            
IBNR Reserves Dec. 31, 2025 (Audited) $ 31                  
Cumulative Number of Reported Claims (Audited) | claims 33,035                  
Short-duration Insurance Contracts, Accident Year 2023 [Member] | Business Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,129 2,060 1,998              
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 597 280 54              
IBNR Reserves Dec. 31, 2025 (Audited) $ 1,080                  
Cumulative Number of Reported Claims (Audited) | claims 19,166                  
Short-duration Insurance Contracts, Accident Year 2023 [Member] | Business Insurance [Member] | Commercial property [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 1,219 1,244 1,268              
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,125 1,049 614              
IBNR Reserves Dec. 31, 2025 (Audited) $ 16                  
Cumulative Number of Reported Claims (Audited) | claims 29,443                  
Short-duration Insurance Contracts, Accident Year 2023 [Member] | Business Insurance [Member] | Commercial multi-peril [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,773 2,811 2,781              
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,894 1,603 935              
IBNR Reserves Dec. 31, 2025 (Audited) $ 474                  
Cumulative Number of Reported Claims (Audited) | claims 55,151                  
Short-duration Insurance Contracts, Accident Year 2023 [Member] | Business Insurance [Member] | Automobile [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,272 2,222 2,245              
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,394 1,006 589              
IBNR Reserves Dec. 31, 2025 (Audited) $ 424                  
Cumulative Number of Reported Claims (Audited) | claims 168,367                  
Short-duration Insurance Contracts, Accident Year 2023 [Member] | Business Insurance [Member] | Workers' compensation [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,371 2,365 2,373              
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,188 925 444              
IBNR Reserves Dec. 31, 2025 (Audited) $ 579                  
Cumulative Number of Reported Claims (Audited) | claims 98,269                  
Short-duration Insurance Contracts, Accident Year 2023 [Member] | Bond & Specialty Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 884 888 862              
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 435 274 90              
IBNR Reserves Dec. 31, 2025 (Audited) $ 277                  
Cumulative Number of Reported Claims (Audited) | claims 6,060                  
Short-duration Insurance Contracts, Accident Year 2023 [Member] | Bond & Specialty Insurance [Member] | Fidelity and surety [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 372 374 353              
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 262 202 96              
IBNR Reserves Dec. 31, 2025 (Audited) $ 83                  
Cumulative Number of Reported Claims (Audited) | claims 986                  
Short-duration Insurance Contracts, Accident Year 2023 [Member] | Personal Insurance [Member] | Automobile [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 5,032 5,133 5,206              
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 4,531 4,068 2,888              
IBNR Reserves Dec. 31, 2025 (Audited) $ 232                  
Cumulative Number of Reported Claims (Audited) | claims 1,112,458                  
Short-duration Insurance Contracts, Accident Year 2023 [Member] | Personal Insurance [Member] | Homeowners (excluding Other) [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 4,979 5,018 5,171              
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 4,814 4,608 3,369              
IBNR Reserves Dec. 31, 2025 (Audited) $ 70                  
Cumulative Number of Reported Claims (Audited) | claims 271,119                  
Short-duration Insurance Contracts, Accident Year 2023 [Member] | Personal Insurance [Member] | International - Canada [Member] | Property-casualty [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 439 455 430              
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 310 275 $ 193              
IBNR Reserves Dec. 31, 2025 (Audited) $ 55                  
Cumulative Number of Reported Claims (Audited) | claims 32,890                  
Short-duration Insurance Contracts, Accident Year 2024 [Member] | Business Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,315 2,340                
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 242 55                
IBNR Reserves Dec. 31, 2025 (Audited) $ 1,782                  
Cumulative Number of Reported Claims (Audited) | claims 17,488                  
Short-duration Insurance Contracts, Accident Year 2024 [Member] | Business Insurance [Member] | Commercial property [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 1,434 1,474                
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,193 702                
IBNR Reserves Dec. 31, 2025 (Audited) $ 28                  
Cumulative Number of Reported Claims (Audited) | claims 28,903                  
Short-duration Insurance Contracts, Accident Year 2024 [Member] | Business Insurance [Member] | Commercial multi-peril [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,909 2,946                
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,539 906                
IBNR Reserves Dec. 31, 2025 (Audited) $ 875                  
Cumulative Number of Reported Claims (Audited) | claims 50,466                  
Short-duration Insurance Contracts, Accident Year 2024 [Member] | Business Insurance [Member] | Automobile [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,452 2,544                
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 1,021 604                
IBNR Reserves Dec. 31, 2025 (Audited) $ 925                  
Cumulative Number of Reported Claims (Audited) | claims 168,679                  
Short-duration Insurance Contracts, Accident Year 2024 [Member] | Business Insurance [Member] | Workers' compensation [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,344 2,352                
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 934 443                
IBNR Reserves Dec. 31, 2025 (Audited) $ 809                  
Cumulative Number of Reported Claims (Audited) | claims 95,182                  
Short-duration Insurance Contracts, Accident Year 2024 [Member] | Bond & Specialty Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 1,073 1,001                
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 369 115                
IBNR Reserves Dec. 31, 2025 (Audited) $ 487                  
Cumulative Number of Reported Claims (Audited) | claims 6,499                  
Short-duration Insurance Contracts, Accident Year 2024 [Member] | Bond & Specialty Insurance [Member] | Fidelity and surety [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 266 363                
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 95 39                
IBNR Reserves Dec. 31, 2025 (Audited) $ 164                  
Cumulative Number of Reported Claims (Audited) | claims 1,049                  
Short-duration Insurance Contracts, Accident Year 2024 [Member] | Personal Insurance [Member] | Automobile [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 4,988 5,179                
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 3,904 2,838                
IBNR Reserves Dec. 31, 2025 (Audited) $ 586                  
Cumulative Number of Reported Claims (Audited) | claims 1,033,917                  
Short-duration Insurance Contracts, Accident Year 2024 [Member] | Personal Insurance [Member] | Homeowners (excluding Other) [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 4,915 5,021                
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 4,454 3,402                
IBNR Reserves Dec. 31, 2025 (Audited) $ 219                  
Cumulative Number of Reported Claims (Audited) | claims 239,165                  
Short-duration Insurance Contracts, Accident Year 2024 [Member] | Personal Insurance [Member] | International - Canada [Member] | Property-casualty [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 487 485                
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 278 $ 197                
IBNR Reserves Dec. 31, 2025 (Audited) $ 96                  
Cumulative Number of Reported Claims (Audited) | claims 33,448                  
Short-duration Insurance Contracts, Accident Year 2025 [Member] | Business Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,604                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 28                  
IBNR Reserves Dec. 31, 2025 (Audited) $ 2,396                  
Cumulative Number of Reported Claims (Audited) | claims 13,197                  
Short-duration Insurance Contracts, Accident Year 2025 [Member] | Business Insurance [Member] | Commercial property [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 1,417                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 664                  
IBNR Reserves Dec. 31, 2025 (Audited) $ 266                  
Cumulative Number of Reported Claims (Audited) | claims 22,297                  
Short-duration Insurance Contracts, Accident Year 2025 [Member] | Business Insurance [Member] | Commercial multi-peril [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,996                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 897                  
IBNR Reserves Dec. 31, 2025 (Audited) $ 1,420                  
Cumulative Number of Reported Claims (Audited) | claims 37,006                  
Short-duration Insurance Contracts, Accident Year 2025 [Member] | Business Insurance [Member] | Automobile [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,754                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 572                  
IBNR Reserves Dec. 31, 2025 (Audited) $ 1,735                  
Cumulative Number of Reported Claims (Audited) | claims 152,342                  
Short-duration Insurance Contracts, Accident Year 2025 [Member] | Business Insurance [Member] | Workers' compensation [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 2,356                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 430                  
IBNR Reserves Dec. 31, 2025 (Audited) $ 1,379                  
Cumulative Number of Reported Claims (Audited) | claims 86,579                  
Short-duration Insurance Contracts, Accident Year 2025 [Member] | Bond & Specialty Insurance [Member] | General liability [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 1,078                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 116                  
IBNR Reserves Dec. 31, 2025 (Audited) $ 735                  
Cumulative Number of Reported Claims (Audited) | claims 5,165                  
Short-duration Insurance Contracts, Accident Year 2025 [Member] | Bond & Specialty Insurance [Member] | Fidelity and surety [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 356                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 31                  
IBNR Reserves Dec. 31, 2025 (Audited) $ 320                  
Cumulative Number of Reported Claims (Audited) | claims 793                  
Short-duration Insurance Contracts, Accident Year 2025 [Member] | Personal Insurance [Member] | Automobile [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 4,770                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 2,557                  
IBNR Reserves Dec. 31, 2025 (Audited) $ 1,487                  
Cumulative Number of Reported Claims (Audited) | claims 851,578                  
Short-duration Insurance Contracts, Accident Year 2025 [Member] | Personal Insurance [Member] | Homeowners (excluding Other) [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 5,120                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 3,224                  
IBNR Reserves Dec. 31, 2025 (Audited) $ 1,157                  
Cumulative Number of Reported Claims (Audited) | claims 153,096                  
Short-duration Insurance Contracts, Accident Year 2025 [Member] | Personal Insurance [Member] | International - Canada [Member] | Property-casualty [Member]                    
Claims Development                    
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) $ 421                  
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance (Audited for 2025) 173                  
IBNR Reserves Dec. 31, 2025 (Audited) $ 131                  
Cumulative Number of Reported Claims (Audited) | claims 28,662                  
Before Reclassifications of Held For Sale [Member] | Property-casualty [Member]                    
Claims Development                    
Total net liability (Audited) $ 60,842                  
Before Reclassifications of Held For Sale [Member] | Personal Insurance [Member] | International - Canada [Member] | Property-casualty [Member]                    
Claims Development                    
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Disclosed Accident Years (Audited) 818                  
Liability for Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance, Before Disclosed Accident Years (Audited) 29                  
Total net liability (Audited) $ 847                  
v3.25.4
Insurance Claim Reserves (Details) - Historical Claim Duration
Dec. 31, 2025
Business Insurance [Member] | General liability [Member]  
Historical Claims Duration  
Short-duration Insurance Contracts, Historical Claims Duration, Year One 2.90%
Short-duration Insurance Contracts, Historical Claims Duration, Year Two 10.60%
Short-duration Insurance Contracts, Historical Claims Duration, Year Three 15.70%
Short-duration Insurance Contracts, Historical Claims Duration, Year Four 18.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Five 14.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Six 11.40%
Short-duration Insurance Contracts, Historical Claims Duration, Year Seven 8.10%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight 5.20%
Short-duration Insurance Contracts, Historical Claims Duration, Year Nine 4.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Ten 3.50%
Business Insurance [Member] | Commercial property [Member]  
Historical Claims Duration  
Short-duration Insurance Contracts, Historical Claims Duration, Year One 49.20%
Short-duration Insurance Contracts, Historical Claims Duration, Year Two 35.30%
Short-duration Insurance Contracts, Historical Claims Duration, Year Three 7.40%
Short-duration Insurance Contracts, Historical Claims Duration, Year Four 2.10%
Short-duration Insurance Contracts, Historical Claims Duration, Year Five 0.50%
Business Insurance [Member] | Commercial multi-peril [Member]  
Historical Claims Duration  
Short-duration Insurance Contracts, Historical Claims Duration, Year One 34.50%
Short-duration Insurance Contracts, Historical Claims Duration, Year Two 23.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Three 10.40%
Short-duration Insurance Contracts, Historical Claims Duration, Year Four 8.50%
Short-duration Insurance Contracts, Historical Claims Duration, Year Five 7.10%
Short-duration Insurance Contracts, Historical Claims Duration, Year Six 4.80%
Short-duration Insurance Contracts, Historical Claims Duration, Year Seven 2.80%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight 1.70%
Short-duration Insurance Contracts, Historical Claims Duration, Year Nine 1.70%
Short-duration Insurance Contracts, Historical Claims Duration, Year Ten 0.70%
Business Insurance [Member] | Automobile [Member]  
Historical Claims Duration  
Short-duration Insurance Contracts, Historical Claims Duration, Year One 24.60%
Short-duration Insurance Contracts, Historical Claims Duration, Year Two 18.90%
Short-duration Insurance Contracts, Historical Claims Duration, Year Three 17.70%
Short-duration Insurance Contracts, Historical Claims Duration, Year Four 14.40%
Short-duration Insurance Contracts, Historical Claims Duration, Year Five 10.40%
Business Insurance [Member] | Workers' compensation [Member]  
Historical Claims Duration  
Short-duration Insurance Contracts, Historical Claims Duration, Year One 19.30%
Short-duration Insurance Contracts, Historical Claims Duration, Year Two 20.70%
Short-duration Insurance Contracts, Historical Claims Duration, Year Three 11.40%
Short-duration Insurance Contracts, Historical Claims Duration, Year Four 7.40%
Short-duration Insurance Contracts, Historical Claims Duration, Year Five 4.90%
Short-duration Insurance Contracts, Historical Claims Duration, Year Six 3.30%
Short-duration Insurance Contracts, Historical Claims Duration, Year Seven 2.50%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight 1.80%
Short-duration Insurance Contracts, Historical Claims Duration, Year Nine 1.40%
Short-duration Insurance Contracts, Historical Claims Duration, Year Ten 1.20%
Bond & Specialty Insurance [Member] | General liability [Member]  
Historical Claims Duration  
Short-duration Insurance Contracts, Historical Claims Duration, Year One 8.90%
Short-duration Insurance Contracts, Historical Claims Duration, Year Two 21.50%
Short-duration Insurance Contracts, Historical Claims Duration, Year Three 18.10%
Short-duration Insurance Contracts, Historical Claims Duration, Year Four 14.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Five 12.10%
Short-duration Insurance Contracts, Historical Claims Duration, Year Six 8.20%
Short-duration Insurance Contracts, Historical Claims Duration, Year Seven 5.80%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight 2.50%
Short-duration Insurance Contracts, Historical Claims Duration, Year Nine 2.10%
Short-duration Insurance Contracts, Historical Claims Duration, Year Ten 0.30%
Bond & Specialty Insurance [Member] | Fidelity and surety [Member]  
Historical Claims Duration  
Short-duration Insurance Contracts, Historical Claims Duration, Year One 21.30%
Short-duration Insurance Contracts, Historical Claims Duration, Year Two 28.50%
Short-duration Insurance Contracts, Historical Claims Duration, Year Three 12.10%
Short-duration Insurance Contracts, Historical Claims Duration, Year Four 7.20%
Short-duration Insurance Contracts, Historical Claims Duration, Year Five (0.80%)
Personal Insurance [Member] | Automobile [Member]  
Historical Claims Duration  
Short-duration Insurance Contracts, Historical Claims Duration, Year One 56.20%
Short-duration Insurance Contracts, Historical Claims Duration, Year Two 23.70%
Short-duration Insurance Contracts, Historical Claims Duration, Year Three 9.40%
Short-duration Insurance Contracts, Historical Claims Duration, Year Four 4.80%
Short-duration Insurance Contracts, Historical Claims Duration, Year Five 2.40%
Personal Insurance [Member] | Homeowners (excluding Other) [Member]  
Historical Claims Duration  
Short-duration Insurance Contracts, Historical Claims Duration, Year One 66.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Two 26.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Three 4.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Four 1.20%
Short-duration Insurance Contracts, Historical Claims Duration, Year Five 0.30%
Personal Insurance [Member] | International - Canada [Member] | Property-casualty [Member]  
Historical Claims Duration  
Short-duration Insurance Contracts, Historical Claims Duration, Year One 44.40%
Short-duration Insurance Contracts, Historical Claims Duration, Year Two 17.70%
Short-duration Insurance Contracts, Historical Claims Duration, Year Three 8.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Four 7.20%
Short-duration Insurance Contracts, Historical Claims Duration, Year Five 6.70%
Short-duration Insurance Contracts, Historical Claims Duration, Year Six 4.50%
Short-duration Insurance Contracts, Historical Claims Duration, Year Seven 3.10%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight 1.70%
Short-duration Insurance Contracts, Historical Claims Duration, Year Nine 1.40%
Short-duration Insurance Contracts, Historical Claims Duration, Year Ten 0.80%
v3.25.4
Insurance Claim Reserves (Details) - Asbestos Reserves - USD ($)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Liability for claims and claim adjustment expense      
Specified threshold of current case reserves for inclusion in in-depth asbestos claim review $ 100,000    
Asbestos reserves [Member]      
Liability for claims and claim adjustment expense      
Asbestos and environmental claims reserves, balance 1,360,000,000 $ 1,340,000,000  
Net losses paid 261,000,000 282,000,000 $ 212,000,000
Increase to reserves $ 277,000,000 $ 242,000,000 $ 284,000,000
v3.25.4
Debt (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Jul. 24, 2025
Dec. 31, 2024
May 25, 2023
Schedule of debt        
Commercial paper $ 100   $ 100  
Total short-term debt 300   100  
Total long-term debt 9,054   8,004  
Total debt principal 9,354   8,104  
Unamortized fair value adjustment 31   34  
Unamortized debt issuance costs (118)   (105)  
Total debt 9,267   8,033  
Senior Notes [Member] | 7.75% Senior notes due April 15, 2026 [Member]        
Schedule of debt        
Current maturities of long-term debt 200   0  
Total long-term debt $ 0   $ 200  
Interest rate (percent) 7.75%   7.75%  
Senior Notes [Member] | 6.375% Senior notes due March 15, 2033 [Member]        
Schedule of debt        
Total long-term debt $ 500   $ 500  
Interest rate (percent) 6.375%   6.375%  
Senior Notes [Member] | 5.05% Senior notes due July 24, 2035 [Member]        
Schedule of debt        
Total long-term debt $ 500   $ 0  
Interest rate (percent) 5.05% 5.05%    
Senior Notes [Member] | 6.75% Senior notes due June 20, 2036 [Member]        
Schedule of debt        
Total long-term debt $ 400   $ 400  
Interest rate (percent) 6.75%   6.75%  
Senior Notes [Member] | 6.25% Senior notes due June 15, 2037 [Member]        
Schedule of debt        
Total long-term debt $ 800   $ 800  
Interest rate (percent) 6.25%   6.25%  
Senior Notes [Member] | 5.35% Senior notes due November 1, 2040 [Member]        
Schedule of debt        
Total long-term debt $ 750   $ 750  
Interest rate (percent) 5.35%   5.35%  
Senior Notes [Member] | 4.60% Senior notes due August 1, 2043 [Member]        
Schedule of debt        
Total long-term debt $ 500   $ 500  
Interest rate (percent) 4.60%   4.60%  
Senior Notes [Member] | 4.30% Senior notes due August 25, 2045 [Member]        
Schedule of debt        
Total long-term debt $ 400   $ 400  
Interest rate (percent) 4.30%   4.30%  
Senior Notes [Member] | 3.75% Senior notes due May 15, 2046 [Member]        
Schedule of debt        
Total long-term debt $ 500   $ 500  
Interest rate (percent) 3.75%   3.75%  
Senior Notes [Member] | 4.00% Senior notes due May 30, 2047 [Member]        
Schedule of debt        
Total long-term debt $ 700   $ 700  
Interest rate (percent) 4.00%   4.00%  
Senior Notes [Member] | 4.05% Senior notes due March 7, 2048 [Member]        
Schedule of debt        
Total long-term debt $ 500   $ 500  
Interest rate (percent) 4.05%   4.05%  
Senior Notes [Member] | 4.10% Senior notes due March 4, 2049 [Member]        
Schedule of debt        
Total long-term debt $ 500   $ 500  
Interest rate (percent) 4.10%   4.10%  
Senior Notes [Member] | 2.55% Senior notes due April 27, 2050 [Member]        
Schedule of debt        
Total long-term debt $ 500   $ 500  
Interest rate (percent) 2.55%   2.55%  
Senior Notes [Member] | 3.05% Senior notes due June 8, 2051 [Member]        
Schedule of debt        
Total long-term debt $ 750   $ 750  
Interest rate (percent) 3.05%   3.05%  
Senior Notes [Member] | 5.45% Senior notes due May 25, 2053 [Member]        
Schedule of debt        
Total long-term debt $ 750   $ 750  
Interest rate (percent) 5.45%   5.45% 5.45%
Senior Notes [Member] | 5.70% Senior notes due July 24, 2055 [Member]        
Schedule of debt        
Total long-term debt $ 750   $ 0  
Interest rate (percent) 5.70% 5.70%    
Junior Subordinated Debt [Member] | 7.625% Junior subordinated debentures due December 15, 2027 [Member]        
Schedule of debt        
Total long-term debt $ 125   125  
Unamortized fair value adjustment $ 3   $ 5  
Interest rate (percent) 7.625%   7.625%  
Effective interest rate (percent) 6.147%   6.147%  
Junior Subordinated Debt [Member] | 8.50% Junior subordinated debentures due December 15, 2045 [Member]        
Schedule of debt        
Total long-term debt $ 56   $ 56  
Unamortized fair value adjustment $ 13   $ 13  
Interest rate (percent) 8.50%   8.50%  
Effective interest rate (percent) 6.362%   6.362%  
Junior Subordinated Debt [Member] | 8.312% Junior subordinated debentures due July 1, 2046 [Member]        
Schedule of debt        
Total long-term debt $ 73   $ 73  
Unamortized fair value adjustment $ 15   $ 16  
Interest rate (percent) 8.312%   8.312%  
Effective interest rate (percent) 6.362%   6.362%  
v3.25.4
Debt (Details) - Debt Issuance
$ in Millions
12 Months Ended
Jul. 24, 2025
USD ($)
tranche
May 25, 2023
USD ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Debt Instrument          
Number of debt tranches issued | tranche 2        
Net proceeds of issuance, after the deduction of the underwriting discount and expenses     $ 1,233 $ 0 $ 738
Senior Notes [Member]          
Debt Instrument          
Debt, principal amount $ 1,250        
Net proceeds of issuance, after the deduction of the underwriting discount and expenses 1,230        
Senior Notes [Member] | 5.05% Senior notes due July 24, 2035 [Member]          
Debt Instrument          
Debt, principal amount $ 500        
Interest rate (percent) 5.05%   5.05%    
Percentage of principal amount at which redemption price may be set 100.00%        
Basis points added to current Treasury rate used in calculation of alternative redemption price 0.15%        
Senior Notes [Member] | 5.70% Senior notes due July 24, 2055 [Member]          
Debt Instrument          
Debt, principal amount $ 750        
Interest rate (percent) 5.70%   5.70%    
Percentage of principal amount at which redemption price may be set 100.00%        
Basis points added to current Treasury rate used in calculation of alternative redemption price 0.15%        
Senior Notes [Member] | 5.45% Senior notes due May 25, 2053 [Member]          
Debt Instrument          
Debt, principal amount   $ 750      
Interest rate (percent)   5.45% 5.45% 5.45%  
Net proceeds of issuance, after the deduction of the underwriting discount and expenses   $ 738      
Percentage of principal amount at which redemption price may be set   100.00%      
Basis points added to current Treasury rate used in calculation of alternative redemption price   0.25%      
v3.25.4
Debt (Details) - Commercial Paper - Commercial Paper [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Line of Credit Facility    
Credit agreement, maximum borrowing capacity $ 800 $ 800
Minimum [Member]    
Line of Credit Facility    
Interest rate on commercial paper 3.87% 4.59%
Maximum [Member]    
Line of Credit Facility    
Interest rate on commercial paper 4.35% 5.36%
v3.25.4
Debt (Details) - Junior Subordinated Debt and Debt Guaranteed
$ in Millions
12 Months Ended
Dec. 31, 2025
USD ($)
debenture_instruments
trusts
Dec. 31, 2024
USD ($)
Debt Instrument    
Unamortized fair value adjustment $ 31 $ 34
Junior Subordinated Debt [Member]    
Debt Instrument    
Number of junior subordinated debentures that are all similar in nature | debenture_instruments 3  
Number of separate trusts that issued preferred securities and used proceeds to purchase the Company's subordinated debentures | trusts 3  
Impact of amortization of the fair value adjustment on interest expense $ 3 $ 1
Junior Subordinated Debt [Member] | 7.625% Junior subordinated debentures due December 15, 2027 [Member]    
Debt Instrument    
Interest rate (percent) 7.625% 7.625%
Unamortized fair value adjustment $ 3 $ 5
Junior Subordinated Debt [Member] | 8.50% Junior subordinated debentures due December 15, 2045 [Member]    
Debt Instrument    
Interest rate (percent) 8.50% 8.50%
Unamortized fair value adjustment $ 13 $ 13
Junior Subordinated Debt [Member] | 8.312% Junior subordinated debentures due July 1, 2046 [Member]    
Debt Instrument    
Interest rate (percent) 8.312% 8.312%
Unamortized fair value adjustment $ 15 $ 16
Senior Notes [Member] | 7.75% Senior notes due April 15, 2026 [Member]    
Debt Instrument    
Interest rate (percent) 7.75% 7.75%
Amount of certain debt obligations of Travelers Property Casualty Corp. (TPC) and Travelers Insurance Group Holdings, Inc. (TIGHI) that are fully and unconditionally guaranteed by The Travelers Companies, Inc. $ 200  
Senior Notes [Member] | 6.375% Senior notes due March 15, 2033 [Member]    
Debt Instrument    
Interest rate (percent) 6.375% 6.375%
Amount of certain debt obligations of Travelers Property Casualty Corp. (TPC) and Travelers Insurance Group Holdings, Inc. (TIGHI) that are fully and unconditionally guaranteed by The Travelers Companies, Inc. $ 500  
v3.25.4
Debt (Details) - Maturities
Dec. 31, 2025
USD ($)
Maturities of long-term debt  
Amount of debt obligations, other than commercial paper, due in 2026 $ 200,000,000
Amount of debt obligations, other than commercial paper, due in 2027 125,000,000
Amount of debt obligations, other than commercial paper, due in 2028 0
Amount of debt obligations, other than commercial paper, due in 2029 0
Amount of debt obligations, other than commercial paper, due in 2030 $ 0
v3.25.4
Debt (Details) - Line of Credit - USD ($)
$ in Millions
Dec. 31, 2025
Jun. 15, 2022
Revolving Credit Agreement [Member] | Revolving Credit Agreement Issued June 15, 2022 [Member]    
Line of Credit Facility    
Credit agreement, term (in years)   5 years
Credit agreement, maximum borrowing capacity   $ 1,000
Credit agreement, covenant terms   Pursuant to the credit agreement covenants, the Company must maintain a minimum consolidated net worth, defined as shareholders’ equity determined in accordance with GAAP (excluding accumulated other comprehensive income (loss)) plus (a) trust preferred securities (not to exceed 15% of total capital) and (b) mandatorily convertible securities (combined with trust preferred securities, not to exceed 25% of total capital), less goodwill and other intangible assets. That threshold is fixed during the term of the credit agreement at an amount equal to $13.9 billion (57.5% of the Company’s net worth as of March 31, 2022). In addition, the credit agreement contains other customary restrictive covenants as well as certain customary events of default, including with respect to a change in control, which would occur upon the acquisition of 35% or more of the Company’s voting stock or certain changes in the composition of the Company’s Board of Directors.
Maximum percentage of trust preferred securities relative to total capital in determining consolidated net worth   15.00%
Maximum percentage of trust preferred securities and mandatorily convertible securities relative to total capital in determining consolidated net worth   25.00%
Credit agreement, threshold of consolidated net worth   $ 13,900
Credit agreement, threshold of consolidated net worth as a percentage of shareholders' equity as calculated per the agreement   57.50%
Percentage of Company's voting stock acquired by outside entity that would be considered a change in control   35.00%
Credit agreement, compliance As of December 31, 2025, the Company was in compliance with these covenants.  
Credit agreement, cost of borrowing, basis points above SOFR 1.10%  
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] Secured Overnight Financing Rate (SOFR) [Member] Secured Overnight Financing Rate (SOFR) [Member]
Revolving Credit Agreement [Member] | Revolving Credit Agreement Issued June 15, 2022 [Member] | Minimum [Member]    
Line of Credit Facility    
Credit agreement, cost of borrowing, basis points above SOFR   0.85%
Revolving Credit Agreement [Member] | Revolving Credit Agreement Issued June 15, 2022 [Member] | Maximum [Member]    
Line of Credit Facility    
Credit agreement, cost of borrowing, basis points above SOFR   1.475%
Letter of credit [Member] | Unsecured Debt [Member]    
Line of Credit Facility    
Credit agreement, maximum borrowing capacity $ 299  
Credit agreement, maximum borrowing capacity, portion utilized to support obligations at Lloyd's $ 260  
v3.25.4
Shareholders' Equity and Dividend Availability (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Stockholders' Equity Note [Abstract]    
Number of authorized shares (in shares) 1,755.0  
Number of authorized shares, preferred shares (in shares) 5.0  
Number of authorized shares, voting common stock (in shares) 1,745.0  
Number of authorized shares, undesignated shares (in shares) 5.0  
Number of shares repurchased under share repurchase authorization (in shares) 10.9  
Cost of shares repurchased under share repurchase authorization $ 3,000  
Average cost per share repurchased under share repurchase authorization (in dollars per share) $ 277.17  
Remaining capacity under share repurchase authorization $ 2,020  
Cost of shares acquired to cover tax withholding costs and exercise costs $ 171 $ 146
v3.25.4
Shareholders' Equity and Dividend Availability (Details) - Additional Authorization - USD ($)
$ in Millions
Jan. 21, 2026
Jan. 20, 2026
Dec. 31, 2025
Class of Treasury Stock      
Remaining capacity under share repurchase authorization     $ 2,020
Subsequent event [Member]      
Class of Treasury Stock      
Additional share repurchase authorization $ 5,000    
Remaining capacity under share repurchase authorization   $ 2,020  
v3.25.4
Shareholders' Equity and Dividend Availability (Details) - Dividend Availability - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Statutory accounting principles      
Cash dividends paid $ 979 $ 951 $ 908
Insurance subsidiaries [Member]      
Statutory accounting principles      
Statutory net income of the Company's domestic and international insurance subsidiaries 6,760 4,740 2,850
Statutory capital and surplus of the Company's domestic and international insurance subsidiaries 31,060 27,720  
Insurance subsidiaries [Member] | United States [Member]      
Statutory accounting principles      
Cash dividends paid 3,250 2,000 1,170
Travelers [Member]      
Statutory accounting principles      
Cash dividends paid $ 979 $ 951 $ 908
Cash dividends declared per common share (in dollars per share) $ 4.35 $ 4.15 $ 3.93
Connecticut Insurance Department [Member] | Insurance subsidiaries [Member]      
Statutory accounting principles      
Maximum amount of dividends available to be paid by subsidiaries to their parent without prior approval of the Connecticut Insurance Department $ 5,920    
v3.25.4
Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Accumulated other comprehensive income (loss) [Roll Forward]      
Balance, beginning of year $ 27,864 $ 24,921  
Other comprehensive income (loss), net of taxes 2,467 (496) $ 1,974
Balance, end of year 32,894 27,864 24,921
Pre-tax components of other comprehensive income (loss) and the related income tax expense (benefit)      
Other comprehensive income (loss), before income taxes 3,087 (575) 2,494
Income tax expense (benefit) 620 (79) 520
Other comprehensive income (loss), net of taxes 2,467 (496) 1,974
Accumulated Other Comprehensive Income (Loss) [Member]      
Accumulated other comprehensive income (loss) [Roll Forward]      
Balance, beginning of year (4,967) (4,471) (6,445)
Other comprehensive income (loss) (OCI) before reclassifications, net of tax 2,412 (596) 1,908
Amounts reclassified from accumulated other comprehensive income (loss), net of tax 55 100 66
Other comprehensive income (loss), net of taxes 2,467 (496) 1,974
Balance, end of year (2,500) (4,967) (4,471)
Pre-tax components of other comprehensive income (loss) and the related income tax expense (benefit)      
Other comprehensive income (loss), before income taxes 3,087 (575) 2,494
Income tax expense (benefit) 620 (79) 520
Other comprehensive income (loss), net of taxes 2,467 (496) 1,974
Changes in Net Unrealized Gains (Losses) on Investment Securities Having No Credit Losses Recognized in the Consolidated Statement of Income [Member]      
Accumulated other comprehensive income (loss) [Roll Forward]      
Balance, beginning of year (3,824) (3,309) (5,077)
Other comprehensive income (loss) (OCI) before reclassifications, net of tax 2,105 (619) 1,692
Amounts reclassified from accumulated other comprehensive income (loss), net of tax 55 104 76
Other comprehensive income (loss), net of taxes 2,160 (515) 1,768
Balance, end of year (1,664) (3,824) (3,309)
Pre-tax components of other comprehensive income (loss) and the related income tax expense (benefit)      
Other comprehensive income (loss), before income taxes 2,744 (644) 2,249
Income tax expense (benefit) 584 (129) 481
Other comprehensive income (loss), net of taxes 2,160 (515) 1,768
Changes in Net Unrealized Gains (Losses) on Investment Securities Having Credit Losses Recognized in the Consolidated Statement of Income [Member]      
Accumulated other comprehensive income (loss) [Roll Forward]      
Balance, beginning of year 184 180 179
Other comprehensive income (loss) (OCI) before reclassifications, net of tax 2 4 1
Amounts reclassified from accumulated other comprehensive income (loss), net of tax 0 0 0
Other comprehensive income (loss), net of taxes 2 4 1
Balance, end of year 186 184 180
Pre-tax components of other comprehensive income (loss) and the related income tax expense (benefit)      
Other comprehensive income (loss), before income taxes 3 5 1
Income tax expense (benefit) 1 1 0
Other comprehensive income (loss), net of taxes 2 4 1
Net Benefit Plan Assets and Obligations Recognized in Shareholders’ Equity [Member]      
Accumulated other comprehensive income (loss) [Roll Forward]      
Balance, beginning of year (224) (458) (542)
Other comprehensive income (loss) (OCI) before reclassifications, net of tax 74 238 94
Amounts reclassified from accumulated other comprehensive income (loss), net of tax 0 (4) (10)
Other comprehensive income (loss), net of taxes 74 234 84
Balance, end of year (150) (224) (458)
Pre-tax components of other comprehensive income (loss) and the related income tax expense (benefit)      
Other comprehensive income (loss), before income taxes 94 296 106
Income tax expense (benefit) 20 62 22
Other comprehensive income (loss), net of taxes 74 234 84
Net Unrealized Foreign Currency Translation [Member]      
Accumulated other comprehensive income (loss) [Roll Forward]      
Balance, beginning of year (1,103) (884) (1,005)
Other comprehensive income (loss) (OCI) before reclassifications, net of tax 231 (219) 121
Amounts reclassified from accumulated other comprehensive income (loss), net of tax 0 0 0
Other comprehensive income (loss), net of taxes 231 (219) 121
Balance, end of year (872) (1,103) (884)
Pre-tax components of other comprehensive income (loss) and the related income tax expense (benefit)      
Other comprehensive income (loss), before income taxes 246 (232) 138
Income tax expense (benefit) 15 (13) 17
Other comprehensive income (loss), net of taxes $ 231 $ (219) $ 121
v3.25.4
Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Income (Loss) (Details) - Reclassifications - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss)      
Reclassification adjustment impacting net realized investment losses on the consolidated statement of income $ 48 $ 30 $ 105
Reclassification adjustment impacting claims and claim adjustment expenses (benefit) on the consolidated statement of income 27,221 27,059 26,215
Reclassification adjustment impacting general and administrative expenses (benefit) on the consolidated statement of income 6,120 5,819 5,176
Total reclassifications (7,796) (6,180) (3,371)
Income tax (expense) benefit (1,508) (1,181) (380)
Amounts reclassified from accumulated other comprehensive income (loss), net of taxes (6,288) (4,999) (2,991)
Accumulated Other Comprehensive Income (Loss) [Member] | Reclassification out of Accumulated Other Comprehensive Income (Loss) [Member]      
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss)      
Total reclassifications 69 126 83
Income tax (expense) benefit 14 26 17
Amounts reclassified from accumulated other comprehensive income (loss), net of taxes 55 100 66
Changes in Net Unrealized Gains (Losses) on Investment Securities Having No Credit Losses Recognized in the Consolidated Statement of Income [Member] | Reclassification out of Accumulated Other Comprehensive Income (Loss) [Member]      
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss)      
Reclassification adjustment impacting net realized investment losses on the consolidated statement of income 69 131 96
Income tax (expense) benefit 14 27 20
Amounts reclassified from accumulated other comprehensive income (loss), net of taxes 55 104 76
Changes in Net Unrealized Gains (Losses) on Investment Securities Having Credit Losses Recognized in the Consolidated Statement of Income [Member] | Reclassification out of Accumulated Other Comprehensive Income (Loss) [Member]      
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss)      
Reclassification adjustment impacting net realized investment losses on the consolidated statement of income 0 0 0
Income tax (expense) benefit 0 0 0
Amounts reclassified from accumulated other comprehensive income (loss), net of taxes 0 0 0
Net Benefit Plan Assets and Obligations Recognized in Shareholders’ Equity [Member] | Reclassification out of Accumulated Other Comprehensive Income (Loss) [Member]      
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss)      
Reclassification adjustment impacting claims and claim adjustment expenses (benefit) on the consolidated statement of income 0 (2) (5)
Reclassification adjustment impacting general and administrative expenses (benefit) on the consolidated statement of income 0 (3) (8)
Total reclassifications 0 (5) (13)
Income tax (expense) benefit 0 (1) (3)
Amounts reclassified from accumulated other comprehensive income (loss), net of taxes 0 (4) (10)
Net Unrealized Foreign Currency Translation [Member] | Reclassification out of Accumulated Other Comprehensive Income (Loss) [Member]      
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss)      
Reclassification adjustment impacting net realized investment losses on the consolidated statement of income 0 0 0
Income tax (expense) benefit 0 0 0
Amounts reclassified from accumulated other comprehensive income (loss), net of taxes $ 0 $ 0 $ 0
v3.25.4
Earnings per Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Earnings Per Share Reconciliation [Abstract]      
Net income $ 6,288 $ 4,999 $ 2,991
Participating share-based awards — allocated income (46) (38) (22)
Net income available to common shareholders -- basic 6,242 4,961 2,969
Net income available to common shareholders -- diluted $ 6,242 $ 4,961 $ 2,969
Weighted average shares outstanding, basic (in shares) 224.2 228.0 229.7
Weighted average effects of dilutive securities - stock options and performance shares (in shares) 3.4 3.1 2.5
Weighted average shares outstanding, diluted (in shares) 227.6 231.1 232.2
Net income per common share, basic (in dollars per share) $ 27.83 $ 21.76 $ 12.93
Net income per common share, diluted (in dollars per share) $ 27.43 $ 21.47 $ 12.79
v3.25.4
Income Taxes (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Tax Disclosure [Abstract]      
Current income tax expense included in consolidated statement of income, federal $ 1,171 $ 1,252 $ 477
Current income tax expense included in consolidated statement of income, foreign 89 70 20
Current income tax expense included in consolidated statement of income, state 17 14 7
Total current tax expense 1,277 1,336 504
Deferred income tax expense (benefit) included in consolidated statement of income, federal 210 (152) (163)
Deferred income tax expense (benefit) included in consolidated statement of income, foreign 21 (3) 39
Total deferred tax expense (benefit) 231 (155) (124)
Total income tax expense included in the consolidated statement of income 1,508 1,181 380
Expense (benefit) relating to changes in the unrealized gain (loss) on investments, unrealized loss on foreign exchange and other items in other comprehensive income (loss) 620 (79) 520
Total income tax expense included in the consolidated financial statements $ 2,128 $ 1,102 $ 900
v3.25.4
Income Taxes (Details) - Effective Tax Rate - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2023
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Tax Disclosure [Abstract]        
U.S. income before income taxes   $ 7,372 $ 5,947 $ 3,122
Foreign income before income taxes   424 233 249
Income before income taxes   $ 7,796 $ 6,180 $ 3,371
Statutory tax rate (percent)   21.00% 21.00% 21.00%
Expected federal income tax expense   $ 1,637 $ 1,298 $ 708
Amount        
Tax effect of nontaxable investment income   (129) (122) (132)
Other nontaxable or nondeductible items   (22)    
Tax effect of audit reserve     9 (205)
Tax effect of other, net   22 (4) 9
Total income tax expense included in the consolidated statement of income   $ 1,508 $ 1,181 $ 380
Percentage        
Nontaxable investment income (percent)   (1.70%)    
Other nontaxable or nondeductible items (percent)   (0.30%)    
Other adjustments, net (percent)   0.30%    
Effective tax rate (percent)   19.30% 19.00% 11.00%
Tax benefit due to the expiration of the statute of limitations with respect to a tax item impacted by the repeal of Internal Revenue Code Section 847, which related to the discounting of property-casualty loss reserves $ 211      
Income taxes paid   $ 1,274 $ 1,310 $ 201
Current income tax payable   $ 309 $ 301  
v3.25.4
Income Taxes (Details) - Income Taxes Paid - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Tax Paid, by Individual Jurisdiction      
Federal $ 1,159    
Foreign 98    
State 17    
Total income taxes paid 1,274 $ 1,310 $ 201
United Kingdom      
Income Tax Paid, by Individual Jurisdiction      
Foreign 65    
Other      
Income Tax Paid, by Individual Jurisdiction      
Foreign $ 33    
v3.25.4
Income Taxes (Details) - Deferred Tax Asset and Liability - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Deferred Taxes    
Deferred tax assets, investments   $ 659
Deferred tax assets, claims and claim adjustment expense reserves   708
Deferred tax assets, unearned premium reserves   833
Deferred tax assets, internally developed software   303
Deferred tax assets, other   261
Total gross deferred tax assets   2,764
Less: valuation allowance   38
Adjusted gross deferred tax assets   2,726
Deferred tax liabilities, deferred acquisition costs   673
Deferred tax liabilities, intangibles   87
Deferred tax liabilities, depreciation   118
Deferred tax liabilities, internally developed software   0
Deferred tax liabilities, other   86
Total gross deferred tax liabilities   964
Net deferred tax asset $ 887 $ 1,762
Increase in valuation allowance 9  
Before Reclassifications of Held For Sale [Member]    
Deferred Taxes    
Deferred tax assets, investments 61  
Deferred tax assets, claims and claim adjustment expense reserves 780  
Deferred tax assets, unearned premium reserves 854  
Deferred tax assets, internally developed software 0  
Deferred tax assets, other 247  
Total gross deferred tax assets 1,942  
Less: valuation allowance 47  
Adjusted gross deferred tax assets 1,895  
Deferred tax liabilities, deferred acquisition costs 691  
Deferred tax liabilities, intangibles 90  
Deferred tax liabilities, depreciation 114  
Deferred tax liabilities, internally developed software 8  
Deferred tax liabilities, other 63  
Total gross deferred tax liabilities 966  
Held for Sale Reclassification [Member]    
Deferred Taxes    
Net deferred tax asset $ (42)  
v3.25.4
Income Taxes (Details) - NOL Carryforwards
$ in Millions
Dec. 31, 2025
USD ($)
United States [Member]  
Net Operating Loss Carryforward  
Net operating loss carryforward $ 21
Canada [Member]  
Net Operating Loss Carryforward  
Net operating loss carryforward 125
Republic of Ireland [Member]  
Net Operating Loss Carryforward  
Net operating loss carryforward 115
United Kingdom [Member]  
Net Operating Loss Carryforward  
Net operating loss carryforward $ 104
v3.25.4
Income Taxes (Details) - Unrecognized Tax Benefits - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Reconciliation of unrecognized tax benefits [Roll Forward]      
Unrecognized tax benefits, balance at January 1 $ 17 $ 14  
Additions for tax positions of prior years 0 1  
Reductions for tax positions of prior years (1) (1)  
Additions based on tax positions related to current year 3 4  
Expiration of statute of limitations (3) (1)  
Unrecognized tax benefits, balance at December 31 16 17 $ 14
Unrecognized tax benefits that, if recognized, would affect the annual effective tax rate 15 17  
Amount of unrecognized tax benefits that are tax positions for which the ultimate deductibility is certain, but for which there is uncertainty about the timing of deductibility 1 0  
Amount of interest recognized on unrecognized tax benefits in income taxes 1 5 $ 3
Accrued payment of interest balance for unrecognized tax benefits $ 12 $ 11  
v3.25.4
Share-based Incentive Compensation (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
Feb. 03, 2026
May 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Summary of stock option activity [Roll Forward]          
Stock options outstanding, beginning of year, number (in shares)     7,005,747    
Stock options granted, number (in shares)     648,808    
Stock options exercised, number (in shares)     (1,405,737)    
Stock options forfeited or expired, number (in shares)     (54,162)    
Stock options outstanding, end of year, number (in shares)     6,194,656 7,005,747  
Stock options outstanding, beginning of year, weighted average exercise price (in dollars per share)     $ 153.89    
Stock options granted, weighted average exercise price (in dollars per share)     244.06    
Stock options exercised, weighted average exercise price (in dollars per share)     136.09    
Stock options forfeited or expired, weighted average exercise price (in dollars per share)     212.45    
Stock options outstanding, end of year, weighted average exercise price (in dollars per share)     $ 166.86 $ 153.89  
Stock options outstanding, weighted average contractual life remaining (in years)     5 years 6 months    
Stock options outstanding, aggregate intrinsic value     $ 763    
Stock options vested at end of year, number (in shares)     5,557,170    
Stock options vested at end of year, weighted average exercise price (in dollars per share)     $ 161.26    
Stock options vested at end of year, weighted average contractual life remaining (in years)     5 years 2 months 12 days    
Stock options vested at end of year, aggregate intrinsic value     $ 716    
Stock options exercisable at end of year, number (in shares)     4,142,265    
Stock options exercisable at end of year, weighted average exercise price (in dollars per share)     $ 143.68    
Stock options exercisable at end of year, weighted average contractual life remaining (in years)     4 years 3 months 18 days    
Stock options exercisable at end of year, aggregate intrinsic value     $ 606    
Stock option grants [Member]          
Share-based compensation plan description          
Option term     10 years    
Award vesting period     3 years    
Assumptions used in estimating fair value of options          
Expected term of stock options     6 years 6 years 6 years
Expected volatility of Company’s stock (percent)     26.22% 25.80%  
Weighted average volatility (percent)     26.22% 25.80% 25.63%
Expected annual dividend per share (in dollars per share)     $ 4.20 $ 4.00 $ 3.72
Risk-free rate     4.39% 3.99%  
Stock options granted, weighted average grant-date fair value of options granted (in dollars per share)     $ 68.92 $ 56.45 $ 47.77
Total intrinsic value of options exercised during the year     $ 186 $ 205 $ 58
Stock option grants [Member] | Minimum [Member]          
Assumptions used in estimating fair value of options          
Expected volatility of Company’s stock (percent)         25.63%
Risk-free rate         3.63%
Stock option grants [Member] | Maximum [Member]          
Assumptions used in estimating fair value of options          
Expected volatility of Company’s stock (percent)         25.99%
Risk-free rate         3.89%
Director deferred stock awards [Member]          
Share-based compensation plan description          
Number of days prior to date of annual meeting in year following date of grant in which annual deferred stock awards vest in full     1 day    
Number of months after termination of service as a director before distributions of deferred stock awards begin     6 months    
The Travelers Companies, Inc 2023 Stock Incentive Plan [Member]          
Share-based compensation plan description          
Number of shares of the Company's common stock originally authorized for grant under the 2023 Incentive Plan (in shares)     5,789,184    
Additional number of shares of the Company's common stock authorized for grant under the 2023 Incentive Plan (in shares)   2,100,000      
Number of shares of the Company's common stock authorized for grant under the 2023 Incentive Plan, total (in shares)     7,889,184    
The Travelers Companies, Inc 2023 Stock Incentive Plan [Member] | Stock option grants [Member] | Subsequent event [Member]          
Assumptions used in estimating fair value of options          
Stock options granted, weighted average grant-date fair value of options granted (in dollars per share) $ 81.68        
Summary of stock option activity [Roll Forward]          
Stock options granted, number (in shares) 572,936        
Stock options granted, weighted average exercise price (in dollars per share) $ 288.23        
v3.25.4
Share-Based Incentive Compensation (Details) - Restricted Stock and Performance Shares - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Feb. 03, 2026
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Restricted stock units, deferred stock units and performance share awards [Member]        
Assumptions used in estimating fair value of performance awards on grant date        
Fair value of shares that vested during the year   $ 267 $ 253 $ 164
Restricted stock units, deferred stock units and performance share awards [Member] | The Travelers Companies, Inc 2023 Stock Incentive Plan [Member] | Subsequent event [Member]        
Summary of other equity instruments [Roll Forward]        
Other equity instruments, granted, number (in shares) 607,689      
Restricted and deferred stock units [Member]        
Summary of other equity instruments [Roll Forward]        
Other equity instruments, nonvested, number, beginning of year (in shares)   1,100,989    
Other equity instruments, granted, number (in shares)   493,676    
Other equity instruments, vested, number (in shares)   (451,967)    
Other equity instruments, forfeited, number (in shares)   (81,137)    
Other equity instruments, nonvested, number, end of year (in shares)   1,061,561 1,100,989  
Other equity instruments, nonvested, weighted average grant-date fair value, beginning of year (in dollars per share)   $ 192.83    
Other equity instruments, granted, weighted average grant-date fair value (in dollars per share)   247.31    
Other equity instruments, vested, weighted average grant-date fair value (in dollars per share)   196.26    
Other equity instruments, forfeited, weighted average grant-date fair value (in dollars per share)   210.93    
Other equity instruments, nonvested, weighted average grant-date fair value, end of year (in dollars per share)   $ 215.33 $ 192.83  
Other equity instruments, nonvested dividend equivalents, number, beginning of year (in shares)   165    
Other equity instruments, nonvested dividend equivalents, number, end of year (in shares)   114 165  
Restricted and deferred stock units [Member] | The Travelers Companies, Inc 2023 Stock Incentive Plan [Member] | Subsequent event [Member]        
Summary of other equity instruments [Roll Forward]        
Other equity instruments, granted, number (in shares) 382,510      
Other equity instruments, granted, weighted average grant-date fair value (in dollars per share) $ 288.23      
Restricted stock units [Member]        
Share-based compensation        
Award vesting period   3 years    
Performance shares [Member]        
Share-based compensation        
Award vesting period     3 years 3 years
Performance period   3 years    
Percentage of performance shares to vest if minimum performance threshold is not met     0.00% 0.00%
Maximum final payout modifier percentage   20.00%    
Assumptions used in estimating fair value of performance awards on grant date        
Expected term   2 years 10 months 24 days    
Expected volatility (percent)   28.16%    
Expected dividend yield (percent)   0.00%    
Risk-free interest rate   4.20%    
Summary of other equity instruments [Roll Forward]        
Other equity instruments, nonvested, number, beginning of year (in shares)   1,155,648    
Other equity instruments, granted, number (in shares)   252,956    
Other equity instruments, vested, number (in shares)   (582,010)    
Other equity instruments, forfeited, number (in shares)   (18,078)    
Other equity instruments, performance-based adjustment, number (in shares)   234,724    
Other equity instruments, nonvested, number, end of year (in shares)   1,043,240 1,155,648  
Other equity instruments, nonvested, weighted average grant-date fair value, beginning of year (in dollars per share)   $ 200.66    
Other equity instruments, granted, weighted average grant-date fair value (in dollars per share)   251.19    
Other equity instruments, vested, weighted average grant-date fair value (in dollars per share)   189.02    
Other equity instruments, forfeited, weighted average grant-date fair value (in dollars per share)   216.75    
Other equity instruments, performance-based adjustment, weighted average grant-date fair value (in dollars per share)   229.56    
Other equity instruments, nonvested, weighted average grant-date fair value, end of year (in dollars per share)   $ 225.63 $ 200.66  
Percentage of performance shares to vest, grant date assumption   100.00%    
Other equity instruments, nonvested dividend equivalents, number, beginning of year (in shares)   35,112    
Other equity instruments, nonvested dividend equivalents, number, end of year (in shares)   26,815 35,112  
Performance shares [Member] | Minimum [Member]        
Share-based compensation        
Percentage of performance shares to vest if minimum performance threshold is met or exceeded     50.00% 50.00%
Percentage of performance shares to vest   0.00%    
Performance shares [Member] | Maximum [Member]        
Share-based compensation        
Percentage of performance shares to vest if minimum performance threshold is met or exceeded     200.00% 200.00%
Percentage of performance shares to vest   200.00%    
Performance shares [Member] | The Travelers Companies, Inc 2023 Stock Incentive Plan [Member] | Subsequent event [Member]        
Summary of other equity instruments [Roll Forward]        
Other equity instruments, granted, number (in shares) 225,179      
Other equity instruments, granted, weighted average grant-date fair value (in dollars per share) $ 300.82      
v3.25.4
Share-Based Incentive Compensation (Details) - Cost Recognition - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Share-based compensation      
Total compensation cost recognized in earnings for all share-based incentive compensation awards $ 256 $ 260 $ 214
Tax benefit recognized in earnings related to compensation costs 43 43 36
Total unrecognized compensation cost related to all nonvested share-based incentive compensation awards $ 255    
Weighted-average period of recognition for unrecognized compensation cost (in years) 1 year 8 months 12 days    
Cash received from the exercise of employee stock options under share-based compensation plans $ 214 321 141
Tax benefit for tax deductions from employee stock options exercised $ 31 39 11
Minimum [Member]      
Share-based compensation      
Estimated annual forfeiture rate reflected in share-based compensation cost (percent) 1.50%    
Maximum [Member]      
Share-based compensation      
Estimated annual forfeiture rate reflected in share-based compensation cost (percent) 3.50%    
Performance shares [Member]      
Share-based compensation      
Estimated attainment of performance shares at grant date (percent) 100.00%    
Compensation cost adjustments for the updated estimate of performance shares due to attaining certain performance levels $ 55 $ 68 $ 39
v3.25.4
Pension Plans, Retirement Benefits and Savings Plans (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Pension Plans [Member]      
Change in projected benefit obligation [Roll Forward]      
Benefit obligation, balance, beginning of year $ 3,431 $ 3,638  
Benefits earned 114 116 $ 108
Interest cost on benefit obligation 176 172 176
Actuarial (gain) loss 131 (155)  
Benefits paid (247) (338)  
Foreign currency exchange rate change, change in projected benefit obligation 5 (2)  
Benefit obligation, balance, end of year 3,610 3,431 3,638
Change in plan assets [Roll Forward]      
Fair value of plan assets, balance, beginning of year 4,334 4,246  
Actual return on plan assets 505 417  
Company contributions 10 12  
Benefits paid (247) (338)  
Foreign currency exchange rate change, change in plan assets 7 (3)  
Fair value of plan assets, balance, end of year 4,609 4,334 4,246
Funded status of plan as of end of year 999 903  
Amounts recognized in the consolidated balance sheet consist of:      
Accrued over-funded benefit plan assets 1,124 1,021  
Accrued under-funded benefit plan liabilities (125) (118)  
Total amount recognized in the consolidated balance sheet 999 903  
Amounts recognized in accumulated other comprehensive loss consist of:      
Net actuarial loss (gain) 288 395  
Prior service cost (benefit) 1 1  
Total amount recognized in accumulated other comprehensive loss 289 396  
Pension Plans [Member] | Nonqualified and Foreign Pension Plans [Member]      
Change in projected benefit obligation [Roll Forward]      
Benefit obligation, balance, beginning of year 186 184  
Benefits earned 4 5  
Interest cost on benefit obligation 9 9  
Actuarial (gain) loss 4 4  
Benefits paid (13) (14)  
Foreign currency exchange rate change, change in projected benefit obligation 5 (2)  
Benefit obligation, balance, end of year 195 186 184
Change in plan assets [Roll Forward]      
Fair value of plan assets, balance, beginning of year 100 97  
Actual return on plan assets 4 8  
Company contributions 10 12  
Benefits paid (13) (14)  
Foreign currency exchange rate change, change in plan assets 7 (3)  
Fair value of plan assets, balance, end of year 108 100 97
Funded status of plan as of end of year (87) (86)  
Amounts recognized in the consolidated balance sheet consist of:      
Accrued over-funded benefit plan assets 38 32  
Accrued under-funded benefit plan liabilities (125) (118)  
Total amount recognized in the consolidated balance sheet (87) (86)  
Amounts recognized in accumulated other comprehensive loss consist of:      
Net actuarial loss (gain) 20 14  
Prior service cost (benefit) 1 1  
Total amount recognized in accumulated other comprehensive loss 21 15  
Pension Plans [Member] | United States [Member] | Qualified Plan [Member]      
Change in projected benefit obligation [Roll Forward]      
Benefit obligation, balance, beginning of year 3,245 3,454  
Benefits earned 110 111  
Interest cost on benefit obligation 167 163  
Actuarial (gain) loss 127 (159)  
Benefits paid (234) (324)  
Foreign currency exchange rate change, change in projected benefit obligation 0 0  
Benefit obligation, balance, end of year 3,415 3,245 3,454
Change in plan assets [Roll Forward]      
Fair value of plan assets, balance, beginning of year 4,234 4,149  
Actual return on plan assets 501 409  
Company contributions 0 0 0
Benefits paid (234) (324)  
Foreign currency exchange rate change, change in plan assets 0 0  
Fair value of plan assets, balance, end of year 4,501 4,234 4,149
Funded status of plan as of end of year 1,086 989  
Amounts recognized in the consolidated balance sheet consist of:      
Accrued over-funded benefit plan assets 1,086 989  
Accrued under-funded benefit plan liabilities 0 0  
Total amount recognized in the consolidated balance sheet 1,086 989  
Amounts recognized in accumulated other comprehensive loss consist of:      
Net actuarial loss (gain) 268 381  
Prior service cost (benefit) 0 0  
Total amount recognized in accumulated other comprehensive loss 268 381  
Postretirement Benefit Plans [Member]      
Change in projected benefit obligation [Roll Forward]      
Benefit obligation, balance, beginning of year 62 92  
Benefits earned 0 0 0
Interest cost on benefit obligation 3 4 5
Actuarial (gain) loss 0 (28)  
Benefits paid (2) (5)  
Foreign currency exchange rate change, change in projected benefit obligation 1 (1)  
Benefit obligation, balance, end of year 64 62 92
Change in plan assets [Roll Forward]      
Fair value of plan assets, balance, beginning of year 6 7  
Actual return on plan assets 1 0  
Company contributions 1 4  
Benefits paid (2) (5)  
Fair value of plan assets, balance, end of year 6 6 $ 7
Funded status of plan as of end of year (58) (56)  
Amounts recognized in the consolidated balance sheet consist of:      
Accrued under-funded benefit plan liabilities (58) (56)  
Total amount recognized in the consolidated balance sheet (58) (56)  
Amounts recognized in accumulated other comprehensive loss consist of:      
Net actuarial loss (gain) (98) (110)  
Prior service cost (benefit) (2) (4)  
Total amount recognized in accumulated other comprehensive loss $ (100) $ (114)  
v3.25.4
Pension Plans, Retirement Benefits and Savings Plans (Details) - Additional Pension Disclosures - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Other changes in benefit plan assets and benefit obligations recognized in other comprehensive income (loss):      
Total other changes in benefit plan assets and benefit obligations recognized in other comprehensive income (loss) $ (94) $ (296) $ (106)
Pension Plans [Member]      
Defined benefit plan disclosure      
Total accumulated benefit obligation 3,430 3,270  
Aggregate projected benefit obligation for plans with a projected benefit obligation in excess of plan assets 125 118  
Aggregate plan assets for plans with a projected benefit obligation in excess of plan assets 0 0  
Aggregate accumulated benefit obligation for plans with an accumulated benefit obligation in excess of plan assets 120 112  
Aggregate plan assets for plans with an accumulated benefit obligation in excess of plan assets 0 0  
Actuarial gain (loss) (131) 155  
Company contributions 10 12  
Components of net periodic benefit cost (benefit)      
Service cost 114 116 108
Interest cost on benefit obligation 176 172 176
Expected return on plan assets (281) (298) (311)
Net periodic benefit cost (benefit), amortization of unrecognized prior service benefit 0 0 (1)
Net periodic benefit cost (benefit), amortization of unrecognized net actuarial (gain) loss 14 7 0
Total non-service cost (benefit) (91) (119) (136)
Net periodic benefit cost (benefit) 23 (3) (28)
Other changes in benefit plan assets and benefit obligations recognized in other comprehensive income (loss):      
Other changes in benefit plan assets and benefit obligations recognized in other comprehensive income (loss), prior service benefit 0 0 0
Other changes in benefit plan assets and benefit obligations recognized in other comprehensive income (loss), net actuarial gain (93) (274) (114)
Other changes in benefit plan assets and benefit obligations recognized in other comprehensive income (loss), foreign currency exchange rate change 0 0 0
Other changes in benefit plan assets and benefit obligations recognized in other comprehensive income (loss), amortization of prior service benefit 0 0 1
Other changes in benefit plan assets and benefit obligations recognized in other comprehensive income (loss), amortization of net actuarial gain (loss) (14) (7) 0
Total other changes in benefit plan assets and benefit obligations recognized in other comprehensive income (loss) (107) (281) (113)
Total other changes recognized in net periodic benefit cost (benefit) and other comprehensive income (loss) (84) (284) (141)
Pension Plans [Member] | Net investment income [Member]      
Components of net periodic benefit cost (benefit)      
Service cost 1 1 0
Total non-service cost (benefit) (1) (1) (1)
Pension Plans [Member] | Claims and claim adjustment expenses [Member]      
Components of net periodic benefit cost (benefit)      
Service cost 44 45 44
Total non-service cost (benefit) (34) (45) (54)
Pension Plans [Member] | General and administrative expenses [Member]      
Components of net periodic benefit cost (benefit)      
Service cost 69 70 64
Total non-service cost (benefit) (56) (73) (81)
Pension Plans [Member] | Nonqualified and Foreign Pension Plans [Member]      
Defined benefit plan disclosure      
Total accumulated benefit obligation 189 180  
Actuarial gain (loss) (4) (4)  
Company contributions 10 12  
Components of net periodic benefit cost (benefit)      
Service cost 4 5  
Interest cost on benefit obligation 9 9  
Pension Plans [Member] | United States [Member] | Qualified Plan [Member]      
Defined benefit plan disclosure      
Total accumulated benefit obligation 3,240 3,090  
Actuarial gain (loss) (127) 159  
Required contributions made 0 0 0
Company contributions 0 0 0
Required contributions during next fiscal year 0    
Components of net periodic benefit cost (benefit)      
Service cost 110 111  
Interest cost on benefit obligation 167 163  
Postretirement Benefit Plans [Member]      
Defined benefit plan disclosure      
Aggregate accumulated benefit obligation for plans with an accumulated benefit obligation in excess of plan assets 64 62  
Aggregate plan assets for plans with an accumulated benefit obligation in excess of plan assets 6 6  
Actuarial gain (loss) 0 28  
Company contributions 1 4  
Components of net periodic benefit cost (benefit)      
Service cost 0 0 0
Interest cost on benefit obligation 3 4 5
Expected return on plan assets (1) 0 0
Net periodic benefit cost (benefit), amortization of unrecognized prior service benefit (2) (3) (3)
Net periodic benefit cost (benefit), amortization of unrecognized net actuarial (gain) loss (12) (9) (9)
Total non-service cost (benefit) (12) (8) (7)
Net periodic benefit cost (benefit) (12) (8) (7)
Other changes in benefit plan assets and benefit obligations recognized in other comprehensive income (loss):      
Other changes in benefit plan assets and benefit obligations recognized in other comprehensive income (loss), prior service benefit 0 0 0
Other changes in benefit plan assets and benefit obligations recognized in other comprehensive income (loss), net actuarial gain 0 (28) (6)
Other changes in benefit plan assets and benefit obligations recognized in other comprehensive income (loss), foreign currency exchange rate change 0 1 0
Other changes in benefit plan assets and benefit obligations recognized in other comprehensive income (loss), amortization of prior service benefit 2 3 3
Other changes in benefit plan assets and benefit obligations recognized in other comprehensive income (loss), amortization of net actuarial gain (loss) 12 9 9
Total other changes in benefit plan assets and benefit obligations recognized in other comprehensive income (loss) 14 (15) 6
Total other changes recognized in net periodic benefit cost (benefit) and other comprehensive income (loss) 2 (23) (1)
Postretirement Benefit Plans [Member] | Net investment income [Member]      
Components of net periodic benefit cost (benefit)      
Service cost 0 0 0
Total non-service cost (benefit) 0 0 0
Postretirement Benefit Plans [Member] | Claims and claim adjustment expenses [Member]      
Components of net periodic benefit cost (benefit)      
Service cost 0 0 0
Total non-service cost (benefit) (5) (3) (3)
Postretirement Benefit Plans [Member] | General and administrative expenses [Member]      
Components of net periodic benefit cost (benefit)      
Service cost 0 0 0
Total non-service cost (benefit) $ (7) $ (5) $ (4)
v3.25.4
Pension Plans, Retirement Benefits and Savings Plans (Details) - Assumptions - United States [Member]
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Pension Plans [Member]    
Defined benefit plan disclosure    
Assumptions used to determine benefit obligations, cash balance interest crediting rate (percent) 4.01% 4.01%
Assumptions used to determine benefit obligations, future compensation increase rate (percent) 4.00% 4.00%
Pension Plans [Member] | Qualified Plan [Member]    
Defined benefit plan disclosure    
Assumptions used to determine benefit obligations, discount rate (percent) 5.53% 5.69%
Assumptions used to determine net periodic benefit cost, discount rate used to measure service cost (percent) 5.81% 5.10%
Assumptions used to determine net periodic benefit cost, discount rate used to measure interest cost (percent) 5.36% 4.91%
Assumptions used to determine net periodic benefit cost, expected long-term rate of return on assets (percent) 7.00% 7.00%
Pension Plans [Member] | Nonqualified Plan [Member]    
Defined benefit plan disclosure    
Assumptions used to determine benefit obligations, discount rate (percent) 5.12% 5.51%
Assumptions used to determine net periodic benefit cost, discount rate used to measure service cost (percent) 5.58% 4.98%
Assumptions used to determine net periodic benefit cost, discount rate used to measure interest cost (percent) 5.25% 4.86%
Postretirement Benefit Plans [Member]    
Defined benefit plan disclosure    
Assumptions used to determine benefit obligations, discount rate (percent) 5.06% 5.48%
Assumptions used to determine net periodic benefit cost, discount rate used to measure interest cost (percent) 5.24% 4.84%
Assumptions used to determine net periodic benefit cost, expected long-term rate of return on assets (percent) 4.00% 4.00%
Assumed health care cost trend rates, medical, following year (percent) (7.21%) (18.04%)
Assumed health care cost trend rates, rate to which the cost trend rate is assumed to decline (ultimate trend rate) (percent) 4.50% 4.50%
Assumed health care cost trend rates, medical, year that the rate reaches the ultimate trend rate 2035 2033
Assumed health care cost trend rates, following year, Company baseline (percent) 9.75% 10.00%
v3.25.4
Pension Plans, Retirement Benefits and Savings Plans (Details) - Additional Information
Dec. 31, 2025
Pension Plans [Member] | United States [Member] | Equity securities [Member] | Minimum [Member]  
Defined benefit plan disclosure  
Investment in class of securities (as a percentage) 55.00%
Pension Plans [Member] | United States [Member] | Equity securities [Member] | Maximum [Member]  
Defined benefit plan disclosure  
Investment in class of securities (as a percentage) 65.00%
Pension Plans [Member] | United States [Member] | Fixed income securities [Member] | Minimum [Member]  
Defined benefit plan disclosure  
Investment in class of securities (as a percentage) 20.00%
Pension Plans [Member] | United States [Member] | Fixed income securities [Member] | Maximum [Member]  
Defined benefit plan disclosure  
Investment in class of securities (as a percentage) 40.00%
Pension Plans [Member] | United States [Member] | Long-term growth [Member] | Minimum [Member]  
Defined benefit plan disclosure  
Investment in class of securities (as a percentage) 85.00%
Pension Plans [Member] | United States [Member] | Long-term growth [Member] | Maximum [Member]  
Defined benefit plan disclosure  
Investment in class of securities (as a percentage) 90.00%
Pension Plans [Member] | United States [Member] | Near-term benefit payments [Member] | Minimum [Member]  
Defined benefit plan disclosure  
Investment in class of securities (as a percentage) 10.00%
Pension Plans [Member] | United States [Member] | Near-term benefit payments [Member] | Maximum [Member]  
Defined benefit plan disclosure  
Investment in class of securities (as a percentage) 15.00%
Postretirement Benefit Plans [Member] | Fixed income securities [Member] | Minimum [Member]  
Defined benefit plan disclosure  
Investment in class of securities (as a percentage) 25.00%
Postretirement Benefit Plans [Member] | Fixed income securities [Member] | Maximum [Member]  
Defined benefit plan disclosure  
Investment in class of securities (as a percentage) 75.00%
Postretirement Benefit Plans [Member] | Long-term growth [Member] | Minimum [Member]  
Defined benefit plan disclosure  
Investment in class of securities (as a percentage) 35.00%
Postretirement Benefit Plans [Member] | Long-term growth [Member] | Maximum [Member]  
Defined benefit plan disclosure  
Investment in class of securities (as a percentage) 65.00%
Postretirement Benefit Plans [Member] | Near-term benefit payments [Member] | Minimum [Member]  
Defined benefit plan disclosure  
Investment in class of securities (as a percentage) 35.00%
Postretirement Benefit Plans [Member] | Near-term benefit payments [Member] | Maximum [Member]  
Defined benefit plan disclosure  
Investment in class of securities (as a percentage) 65.00%
v3.25.4
Pension Plans, Retirement Benefits and Savings Plans (Details) - Fair Value - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Pension Plans [Member]      
Defined benefit plan disclosure      
Fair value of plan assets $ 4,609 $ 4,334 $ 4,246
Pension Plans [Member] | Level 1 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 3,629 3,379  
Pension Plans [Member] | Level 2 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 979 954  
Pension Plans [Member] | Level 3 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 1 1  
Pension Plans [Member] | Fixed maturities [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 1,564 902  
Pension Plans [Member] | Fixed maturities [Member] | Level 1 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 594 0  
Pension Plans [Member] | Fixed maturities [Member] | Level 2 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 970 902  
Pension Plans [Member] | Fixed maturities [Member] | Level 3 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Pension Plans [Member] | U.S. Treasury securities and obligations of U.S. government and government agencies and authorities [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 594    
Pension Plans [Member] | U.S. Treasury securities and obligations of U.S. government and government agencies and authorities [Member] | Level 1 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 594    
Pension Plans [Member] | U.S. Treasury securities and obligations of U.S. government and government agencies and authorities [Member] | Level 2 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0    
Pension Plans [Member] | U.S. Treasury securities and obligations of U.S. government and government agencies and authorities [Member] | Level 3 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0    
Pension Plans [Member] | Obligations of U.S. states, municipalities and political subdivisions [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 160 109  
Pension Plans [Member] | Obligations of U.S. states, municipalities and political subdivisions [Member] | Level 1 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Pension Plans [Member] | Obligations of U.S. states, municipalities and political subdivisions [Member] | Level 2 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 160 109  
Pension Plans [Member] | Obligations of U.S. states, municipalities and political subdivisions [Member] | Level 3 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Pension Plans [Member] | Debt securities issued by foreign governments [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 36 34  
Pension Plans [Member] | Debt securities issued by foreign governments [Member] | Level 1 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Pension Plans [Member] | Debt securities issued by foreign governments [Member] | Level 2 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 36 34  
Pension Plans [Member] | Debt securities issued by foreign governments [Member] | Level 3 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Pension Plans [Member] | Mortgage-backed securities, collateralized mortgage obligations and pass-through securities [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 7 8  
Pension Plans [Member] | Mortgage-backed securities, collateralized mortgage obligations and pass-through securities [Member] | Level 1 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Pension Plans [Member] | Mortgage-backed securities, collateralized mortgage obligations and pass-through securities [Member] | Level 2 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 7 8  
Pension Plans [Member] | Mortgage-backed securities, collateralized mortgage obligations and pass-through securities [Member] | Level 3 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Pension Plans [Member] | Corporate and all other bonds [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 767 751  
Pension Plans [Member] | Corporate and all other bonds [Member] | Level 1 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Pension Plans [Member] | Corporate and all other bonds [Member] | Level 2 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 767 751  
Pension Plans [Member] | Corporate and all other bonds [Member] | Level 3 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Pension Plans [Member] | Total mutual funds [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 1,359 1,845  
Pension Plans [Member] | Total mutual funds [Member] | Level 1 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 1,350 1,808  
Pension Plans [Member] | Total mutual funds [Member] | Level 2 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 9 37  
Pension Plans [Member] | Total mutual funds [Member] | Level 3 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Pension Plans [Member] | Equity mutual funds [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 1,265 1,178  
Pension Plans [Member] | Equity mutual funds [Member] | Level 1 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 1,259 1,172  
Pension Plans [Member] | Equity mutual funds [Member] | Level 2 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 6 6  
Pension Plans [Member] | Equity mutual funds [Member] | Level 3 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Pension Plans [Member] | Bond mutual funds [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 94 667  
Pension Plans [Member] | Bond mutual funds [Member] | Level 1 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 91 636  
Pension Plans [Member] | Bond mutual funds [Member] | Level 2 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 3 31  
Pension Plans [Member] | Bond mutual funds [Member] | Level 3 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Pension Plans [Member] | Equity securities [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 1,533 1,401  
Pension Plans [Member] | Equity securities [Member] | Level 1 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 1,533 1,401  
Pension Plans [Member] | Equity securities [Member] | Level 2 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Pension Plans [Member] | Equity securities [Member] | Level 3 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Pension Plans [Member] | Other investments [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 1 1  
Pension Plans [Member] | Other investments [Member] | Level 1 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Pension Plans [Member] | Other investments [Member] | Level 2 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Pension Plans [Member] | Other investments [Member] | Level 3 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 1 1  
Pension Plans [Member] | Cash and short-term securities [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 152 185  
Pension Plans [Member] | Cash and short-term securities [Member] | Level 1 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 152 170  
Pension Plans [Member] | Cash and short-term securities [Member] | Level 2 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 15  
Pension Plans [Member] | Cash and short-term securities [Member] | Level 3 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Pension Plans [Member] | Cash and short-term securities, U.S. Treasury securities [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 76 108  
Pension Plans [Member] | Cash and short-term securities, U.S. Treasury securities [Member] | Level 1 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 76 108  
Pension Plans [Member] | Cash and short-term securities, U.S. Treasury securities [Member] | Level 2 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Pension Plans [Member] | Cash and short-term securities, U.S. Treasury securities [Member] | Level 3 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Pension Plans [Member] | Cash and short-term securities, other [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 76 77  
Pension Plans [Member] | Cash and short-term securities, other [Member] | Level 1 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 76 62  
Pension Plans [Member] | Cash and short-term securities, other [Member] | Level 2 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 15  
Pension Plans [Member] | Cash and short-term securities, other [Member] | Level 3 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 0 0  
Postretirement Benefit Plans [Member]      
Defined benefit plan disclosure      
Fair value of plan assets 6 6 $ 7
Postretirement Benefit Plans [Member] | Level 2 [Member]      
Defined benefit plan disclosure      
Fair value of plan assets $ 6 $ 6  
v3.25.4
Pension Plans, Retirement Benefits and Savings Plans (Details) - Future Payments
$ in Millions
Dec. 31, 2025
USD ($)
Pension Plans [Member]  
Estimated Future Benefit Payments  
Benefits expected to be paid, 2026 $ 292
Benefits expected to be paid, 2027 298
Benefits expected to be paid, 2028 303
Benefits expected to be paid, 2029 304
Benefits expected to be paid, 2030 301
Benefits expected to be paid, 2031 through 2035 1,478
Postretirement Benefit Plans [Member]  
Estimated Future Benefit Payments  
Benefits expected to be paid, 2026 5
Benefits expected to be paid, 2027 6
Benefits expected to be paid, 2028 6
Benefits expected to be paid, 2029 6
Benefits expected to be paid, 2030 6
Benefits expected to be paid, 2031 through 2035 $ 27
v3.25.4
Pension Plans, Retirement Benefits and Savings Plans (Details) - Savings Plan - USD ($)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Savings Plan      
Expense related to all savings plans $ 180,000,000 $ 170,000,000 $ 154,000,000
The Travelers 401(k) Savings Plan [Member]      
Savings Plan      
Maximum annual match $ 7,500    
Vesting percentage of employer match after vesting period 100.00%    
Vesting period 3 years    
The Travelers 401(k) Savings Plan [Member] | Maximum [Member]      
Savings Plan      
Matching contribution as a percent of eligible pay 5.00%    
v3.25.4
Leases (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Leases [Abstract]      
Operating leases $ 64 $ 73 $ 76
Short-term leases 2 3 3
Lease expense 66 76 79
Less: sublease income 0 0 0
Net lease cost 66 76 79
Cash payments to settle a lease liability reported in cash flows 74 79 87
Right-of-use assets obtained in exchange for new lease liabilities $ 30 $ 95 $ 37
Weighted average discount rate (percent) 4.06% 3.82%  
Weighted average remaining lease term (in years) 5 years 4 months 24 days 5 years 8 months 12 days  
v3.25.4
Leases (Details) - Contractual Maturities
$ in Millions
Dec. 31, 2025
USD ($)
Leases [Abstract]  
Lease payments due, 2026 $ 69
Lease payments due, 2027 58
Lease payments due, 2028 51
Lease payments due, 2029 39
Lease payments due, 2030 19
Lease payments due, thereafter 59
Total undiscounted lease payments 295
Less: present value adjustment $ 50
Operating Lease, Liability, Statement of Financial Position [Extensible List] Other liabilities
Operating lease liability $ 245
v3.25.4
Contingencies, Commitments and Guarantees (Details) - Commitments - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Contingencies, Commitments and Guarantees [Abstract]    
Unfunded commitments to private equity limited partnerships, real estate partnerships and other investments $ 1,410 $ 1,490
v3.25.4
Contingencies, Commitments and Guarantees (Details) - Guarantees
$ in Millions
Dec. 31, 2025
USD ($)
Indemnifications related to the sale of businesses [Member]  
Guarantor obligations  
Maximum amount of contingent obligation $ 352
Guarantees of certain insurance policy obligations [Member]  
Guarantor obligations  
Maximum amount of contingent obligation 480
Amount indemnified by a third party $ 480
v3.25.4
Noncash Investing and Financing Activities (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]    
Noncash transfer to investments   $ 32
Issuance of common stock — net share settlement of employee options $ 44 $ 32
v3.25.4
Schedule II (Details) - Condensed Income Statement - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Condensed Statement of Income      
Net investment income $ 3,959 $ 3,590 $ 2,922
Net realized investment gains (48) (30) (105)
Total revenues 48,828 46,423 41,364
Interest expense 425 392 376
Other 6,120 5,819 5,176
Total claims and expenses 41,032 40,243 37,993
Income before income taxes 7,796 6,180 3,371
Income tax expense (benefit) 1,508 1,181 380
Net income 6,288 4,999 2,991
Travelers [Member]      
Condensed Statement of Income      
Net investment income 100 92 92
Net realized investment gains 41 34 37
Total revenues 141 126 129
Interest expense 377 344 328
Other 31 3 (18)
Total claims and expenses 408 347 310
Income before income taxes (267) (221) (181)
Income tax expense (benefit) (84) (88) (58)
Loss before net income of subsidiaries (183) (133) (123)
Net income of subsidiaries 6,471 5,132 3,114
Net income $ 6,288 $ 4,999 $ 2,991
v3.25.4
Schedule II (Details) - Condensed Statement of Comprehensive Income - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Condensed Statement of Comprehensive Income      
Net income $ 6,288 $ 4,999 $ 2,991
Changes in net unrealized gains (losses) on investment securities having no credit losses recognized in the consolidated statement of income 2,744 (644) 2,249
Net changes in benefit plan assets and obligations 94 296 106
Other comprehensive income (loss) before income taxes 3,087 (575) 2,494
Income tax expense (benefit) 620 (79) 520
Other comprehensive income (loss), net of taxes 2,467 (496) 1,974
Comprehensive income 8,755 4,503 4,965
Travelers [Member]      
Condensed Statement of Comprehensive Income      
Net income 6,288 4,999 2,991
Changes in net unrealized gains (losses) on investment securities having no credit losses recognized in the consolidated statement of income 8 (1) 3
Net changes in benefit plan assets and obligations 92 294 111
Other comprehensive income (loss) before income taxes 100 293 114
Income tax expense (benefit) 30 61 30
Other comprehensive income, net of taxes, before other comprehensive income (loss) of subsidiaries 70 232 84
Other comprehensive income (loss) of subsidiaries 2,397 (728) 1,890
Other comprehensive income (loss), net of taxes 2,467 (496) 1,974
Comprehensive income $ 8,755 $ 4,503 $ 4,965
v3.25.4
Schedule II (Details) - Condensed Balance Sheet - USD ($)
shares in Millions, $ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Condensed Balance Sheet      
Fixed maturities, at fair value $ 89,833 $ 83,666  
Equity securities, at fair value 618 687  
Short-term securities 5,716 4,766  
Total assets 143,708 133,189  
Debt 9,267 8,033  
Total liabilities 110,814 105,325  
Common stock (1,750.0 shares authorized; 217.5 and 226.6 shares issued and outstanding) 25,910 25,452  
Retained earnings 54,931 49,630  
Accumulated other comprehensive loss (2,500) (4,967)  
Treasury stock, at cost (575.9 and 564.3 shares) (45,447) (42,251)  
Total shareholders’ equity 32,894 27,864 $ 24,921
Total liabilities and shareholders’ equity $ 143,708 $ 133,189  
Common stock, shares authorized (in shares) 1,750.0 1,750.0  
Common stock, shares issued (in shares) 217.5 226.6  
Common stock, shares outstanding (in shares) 217.5 226.6  
Treasury stock, at cost (in shares) 575.9 564.3  
Travelers [Member]      
Condensed Balance Sheet      
Fixed maturities, at fair value $ 243 $ 186  
Equity securities, at fair value 287 284  
Short-term securities 2,352 1,748  
Investment in subsidiaries 38,001 32,374  
Other assets 826 774  
Total assets 41,709 35,366  
Debt 8,571 7,337  
Other liabilities 237 158  
Total liabilities 8,808 7,495  
Common stock (1,750.0 shares authorized; 217.5 and 226.6 shares issued and outstanding) 25,910 25,452  
Retained earnings 54,938 49,637  
Accumulated other comprehensive loss (2,500) (4,967)  
Treasury stock, at cost (575.9 and 564.3 shares) (45,447) (42,251)  
Total shareholders’ equity 32,901 27,871  
Total liabilities and shareholders’ equity $ 41,709 $ 35,366  
Common stock, shares authorized (in shares) 1,750.0 1,750.0  
Common stock, shares issued (in shares) 217.5 226.6  
Common stock, shares outstanding (in shares) 217.5 226.6  
Treasury stock, at cost (in shares) 575.9 564.3  
v3.25.4
Schedule II (Details) - Condensed Statement of Cash Flows - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Condensed Statement of Cash Flows      
Net income $ 6,288 $ 4,999 $ 2,991
Other operating activities 81 556 647
Net cash provided by operating activities 10,606 9,074 7,711
Net purchases of short-term securities (945) 370 (1,664)
Net cash used in investing activities (7,652) (7,264) (6,821)
Treasury stock acquired — share repurchase authorizations (3,004) (1,003) (958)
Treasury stock acquired — net employee share-based compensation (127) (114) (64)
Dividends paid to shareholders (979) (951) (908)
Issuance of debt 1,233 0 738
Issuance of common stock — employee share options 214 321 141
Net cash used in financing activities (2,663) (1,747) (1,051)
Net increase (decrease) in cash and restricted cash 314 49 (149)
Cash and restricted cash at beginning of year 699 650 799
Cash and restricted cash at end of year 842 699 650
Cash received during the year for taxes (1,274) (1,310) (201)
Cash paid during the year for interest 393 390 370
Issuance of common stock — net share settlement of employee options 44 32  
Travelers [Member]      
Condensed Statement of Cash Flows      
Net income 6,288 4,999 2,991
Equity in net income of subsidiaries (6,471) (5,132) (3,114)
Dividends received from consolidated subsidiaries 3,266 1,964 1,125
Other operating activities 190 180 175
Net cash provided by operating activities 3,273 2,011 1,177
Net purchases of short-term securities (604) (254) (88)
Other investments, net (8) (8) (37)
Net cash used in investing activities (612) (262) (125)
Treasury stock acquired — share repurchase authorizations (3,004) (1,003) (958)
Treasury stock acquired — net employee share-based compensation (127) (114) (64)
Dividends paid to shareholders (979) (951) (908)
Issuance of debt 1,233 0 738
Issuance of common stock — employee share options 214 321 141
Net cash used in financing activities (2,663) (1,747) (1,051)
Net increase (decrease) in cash and restricted cash (2) 2 1
Cash and restricted cash at beginning of year 3 1 0
Cash and restricted cash at end of year 1 3 1
Cash received during the year for taxes 96 122 73
Cash paid during the year for interest 346 343 322
Issuance of common stock — net share settlement of employee options $ 44 $ 32 $ 0
v3.25.4
Schedule II (Details) - Guarantees
12 Months Ended
Dec. 31, 2025
Condensed Financial Information Disclosure [Abstract]  
Schedule II Guarantees Footnote GUARANTEES
The Travelers Companies, Inc. (TRV) fully and unconditionally guarantees the payment of all principal, premiums, if any, and interest on certain debt obligations of its subsidiaries TPC and TIGHI. The guarantees pertain to the $200 million 7.75% notes due 2026 and the $500 million 6.375% notes due 2033.
TRV also has contingent obligations for guarantees in connection with the selling of businesses to third parties; certain insurance, reinsurance and banking facility obligations of certain subsidiaries and various indemnifications including indemnifications that it utilizes with service providers in the normal course of business. The guarantees and indemnification clauses are often standard contractual terms and include indemnifications for breaches of representations and warranties and in some cases obligations arising from certain liabilities. The terms of these provisions vary in duration and nature. 
Certain of the guarantees and indemnifications described above have no stated or notional amounts or limitation to the maximum potential future payments. Accordingly, TRV is unable to provide an estimate of the maximum potential payments for such arrangements; the likelihood for any payment under these guarantees is remote.
v3.25.4
Schedule II (Details) - Guarantees Schedule - Senior Notes [Member] - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
7.75% Senior notes due April 15, 2026 [Member]    
Guarantor obligations    
Amount of certain debt obligations of Travelers Property Casualty Corp. (TPC) and Travelers Insurance Group Holdings, Inc. (TIGHI) that are fully and unconditionally guaranteed by The Travelers Companies, Inc. $ 200  
Interest rate (percent) 7.75% 7.75%
6.375% Senior notes due March 15, 2033 [Member]    
Guarantor obligations    
Amount of certain debt obligations of Travelers Property Casualty Corp. (TPC) and Travelers Insurance Group Holdings, Inc. (TIGHI) that are fully and unconditionally guaranteed by The Travelers Companies, Inc. $ 500  
Interest rate (percent) 6.375% 6.375%
Guarantees on payment of principal, premiums and interest on certain debt obligations [Member] | Travelers [Member] | 7.75% Senior notes due April 15, 2026 [Member]    
Guarantor obligations    
Amount of certain debt obligations of Travelers Property Casualty Corp. (TPC) and Travelers Insurance Group Holdings, Inc. (TIGHI) that are fully and unconditionally guaranteed by The Travelers Companies, Inc. $ 200  
Interest rate (percent) 7.75%  
Guarantees on payment of principal, premiums and interest on certain debt obligations [Member] | Travelers [Member] | 6.375% Senior notes due March 15, 2033 [Member]    
Guarantor obligations    
Amount of certain debt obligations of Travelers Property Casualty Corp. (TPC) and Travelers Insurance Group Holdings, Inc. (TIGHI) that are fully and unconditionally guaranteed by The Travelers Companies, Inc. $ 500  
Interest rate (percent) 6.375%  
v3.25.4
Schedule III (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Schedule III      
Deferred acquisition costs $ 3,518 $ 3,494 $ 3,306
Claims and claim adjustment expense reserves 65,737 64,093 61,627
Unearned premiums 22,431 22,289 20,872
Earned premiums 43,914 41,941 37,761
Net investment income 3,959 3,590 2,922
Claims and claim adjustment expenses 27,221 27,059 26,215
Amortization of deferred acquisition costs 7,266 6,973 6,226
Other operating expenses 6,545 6,211 5,552
Net written premiums 44,387 43,356 40,201
Reportable segments [Member]      
Schedule III      
Deferred acquisition costs 3,518 3,494 3,306
Claims and claim adjustment expense reserves 65,734 64,088 61,621
Unearned premiums 22,431 22,289 20,872
Earned premiums 43,914 41,941 37,761
Net investment income 3,959 3,590 2,922
Claims and claim adjustment expenses 27,221 27,059 26,215
Amortization of deferred acquisition costs 7,266 6,973 6,226
Other operating expenses 6,071 5,775 5,139
Net written premiums 44,387 43,356 40,201
Reportable segments [Member] | Business Insurance [Member]      
Schedule III      
Deferred acquisition costs 1,750 1,698 1,580
Claims and claim adjustment expense reserves 51,655 49,731 47,739
Unearned premiums 11,088 10,831 10,068
Earned premiums 22,412 21,345 19,144
Net investment income 2,782 2,560 2,085
Claims and claim adjustment expenses 14,154 13,679 12,696
Amortization of deferred acquisition costs 3,796 3,588 3,173
Other operating expenses 3,482 3,303 3,041
Net written premiums 22,679 22,078 20,430
Reportable segments [Member] | Bond & Specialty Insurance [Member]      
Schedule III      
Deferred acquisition costs 542 502 477
Claims and claim adjustment expense reserves 5,672 5,365 4,945
Unearned premiums 3,145 3,012 2,861
Earned premiums 4,107 3,958 3,655
Net investment income 445 390 328
Claims and claim adjustment expenses 1,764 1,774 1,485
Amortization of deferred acquisition costs 778 756 673
Other operating expenses 843 832 681
Net written premiums 4,262 4,109 3,842
Reportable segments [Member] | Personal Insurance [Member]      
Schedule III      
Deferred acquisition costs 1,226 1,294 1,249
Claims and claim adjustment expense reserves 8,407 8,992 8,937
Unearned premiums 8,198 8,446 7,943
Earned premiums 17,395 16,638 14,962
Net investment income 732 640 509
Claims and claim adjustment expenses 11,303 11,606 12,034
Amortization of deferred acquisition costs 2,692 2,629 2,380
Other operating expenses 1,746 1,640 1,417
Net written premiums 17,446 17,169 15,929
Other [Member]      
Schedule III      
Deferred acquisition costs 0 0 0
Claims and claim adjustment expense reserves 3 5 6
Unearned premiums 0 0 0
Earned premiums 0 0 0
Net investment income 0 0 0
Claims and claim adjustment expenses 0 0 0
Amortization of deferred acquisition costs 0 0 0
Other operating expenses 474 436 413
Net written premiums $ 0 $ 0 $ 0
v3.25.4
Schedule V (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Reinsurance recoverables [Member]      
Schedule V [Roll Forward]      
Valuation and qualifying accounts, balance at beginning of period $ 119 $ 118 $ 132
Valuation and qualifying accounts, charged to costs and expenses 15 1 (14)
Valuation and qualifying accounts, charged to other accounts 0 0 0
Valuation and qualifying accounts, deductions 5 0 0
Valuation and qualifying accounts, balance at end of period 129 119 118
Reinsurance recoverables [Member] | Amounts classified as held for sale [Member]      
Schedule V [Roll Forward]      
Valuation and qualifying accounts, balance at end of period 5    
Allowance for uncollectible premiums receivable from underwriting activities [Member]      
Schedule V [Roll Forward]      
Valuation and qualifying accounts, balance at beginning of period 58 69 77
Valuation and qualifying accounts, charged to costs and expenses 65 50 42
Valuation and qualifying accounts, charged to other accounts 0 0 0
Valuation and qualifying accounts, deductions 65 61 50
Valuation and qualifying accounts, balance at end of period 58 58 69
Allowance for uncollectible premiums receivable from underwriting activities [Member] | Amounts classified as held for sale [Member]      
Schedule V [Roll Forward]      
Valuation and qualifying accounts, balance at end of period 1    
Allowance for uncollectible deductibles [Member]      
Schedule V [Roll Forward]      
Valuation and qualifying accounts, balance at beginning of period 28 29 25
Valuation and qualifying accounts, charged to costs and expenses (2) (1) 5
Valuation and qualifying accounts, charged to other accounts 0 0 0
Valuation and qualifying accounts, deductions 0 0 1
Valuation and qualifying accounts, balance at end of period $ 26 $ 28 $ 29
v3.25.4
Schedule VI (Details) - Consolidated Property and Casualty Insurance Entity [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Supplementary Information Concerning Property-Casualty Insurance Operations      
Deferred acquisition costs $ 3,518 $ 3,494 $ 3,306
Claims and claim adjustment expense reserves 65,734 64,088 61,621
Discount from reserves for unpaid claims 1,027 1,070 1,096
Unearned premiums 22,431 22,289 20,872
Earned premiums 43,914 41,941 37,761
Net investment income 3,959 3,590 2,922
Claims and claim adjustment expenses incurred related to current year 28,051 27,508 26,159
Claims and claim adjustment expenses incurred related to prior year (939) (548) (38)
Amortization of deferred acquisition costs 7,266 6,973 6,226
Paid claims and claim adjustment expenses 23,913 24,151 23,276
Net written premiums $ 44,387 $ 43,356 $ 40,201