LUMEN TECHNOLOGIES, INC., 10-K filed on 2/20/2025
Annual Report
v3.25.0.1
Cover Page - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2024
Feb. 18, 2025
Jun. 30, 2024
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2024    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-7784    
Entity Registrant Name Lumen Technologies, Inc.    
Entity Incorporation, State or Country Code LA    
Entity Tax Identification Number 72-0651161    
Entity Address, Address Line One 100 CenturyLink Drive,    
Entity Address, City or Town Monroe,    
Entity Address, State or Province LA    
Entity Address, Postal Zip Code 71203    
City Area Code 318    
Local Phone Number 388-9000    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction false    
Entity Shell Company false    
Entity Common Stock, Shares Outstanding   1,013,799,349  
Entity Public Float     $ 1.1
Documents Incorporated by Reference
Portions of the Registrant's Proxy Statement to be furnished in connection with the 2025 annual meeting of shareholders are incorporated by reference in Part III of this report.
   
Entity Central Index Key 0000018926    
Amendment Flag false    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Common Stock      
Document Information [Line Items]      
Title of 12(b) Security Common Stock, no-par value per share    
Trading Symbol LUMN    
Security Exchange Name NYSE    
Preferred Stock      
Document Information [Line Items]      
Title of 12(b) Security Preferred Stock Purchase Rights    
No Trading Symbol Flag true    
Security Exchange Name NYSE    
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Audit Information
12 Months Ended
Dec. 31, 2024
Audit Information [Abstract]  
Auditor Name KPMG LLP
Auditor Location Denver, Colorado
Auditor Firm ID 185
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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)
shares in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income Statement [Abstract]      
OPERATING REVENUE $ 13,108,000,000 $ 14,557,000,000 $ 17,478,000,000
OPERATING EXPENSES      
Cost of services and products (exclusive of depreciation and amortization) 6,703,000,000 7,144,000,000 7,868,000,000
Selling, general and administrative 2,972,000,000 3,198,000,000 3,078,000,000
Net loss (gain) on sale of businesses 17,000,000 121,000,000 (113,000,000)
Loss on disposal groups held for sale 0 0 40,000,000
Depreciation and amortization 2,956,000,000 2,985,000,000 3,239,000,000
Goodwill impairment 0 10,693,000,000 3,271,000,000
Total operating expenses 12,648,000,000 24,141,000,000 17,383,000,000
OPERATING INCOME (LOSS) 460,000,000 (9,584,000,000) 95,000,000
OTHER EXPENSE      
Interest expense (1,372,000,000) (1,158,000,000) (1,332,000,000)
Net gain on early retirement of debt (Note 7) 348,000,000 618,000,000 214,000,000
Other income (expense), net 334,000,000 (113,000,000) 32,000,000
Total other expense, net (690,000,000) (653,000,000) (1,086,000,000)
LOSS BEFORE INCOME TAXES (230,000,000) (10,237,000,000) (991,000,000)
Income tax (benefit) expense (175,000,000) 61,000,000 557,000,000
NET LOSS $ (55,000,000) $ (10,298,000,000) $ (1,548,000,000)
BASIC AND DILUTED LOSS PER COMMON SHARE      
BASIC (in dollars per share) $ (0.06) $ (10.48) $ (1.54)
DILUTED (in dollars per share) $ (0.06) $ (10.48) $ (1.54)
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING      
BASIC (in shares) 987,680 983,081 1,007,517
DILUTED (in shares) 987,680 983,081 1,007,517
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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Statement of Comprehensive Income [Abstract]      
NET LOSS $ (55) $ (10,298) $ (1,548)
Items related to employee benefit plans:      
Change in net actuarial loss, net of $(30), $20 and $(205) tax 97 (59) 631
Reclassification of net actuarial loss to (loss) gain on the sale of businesses, net of $—, $— and $(142) tax 0 (22) 422
Change in net prior service cost, net of $4, $4 and $(9) tax (11) (11) 30
Reclassification of prior service credit to (loss) gain on the sale of businesses, net of $—, $— and $6 tax 0 0 (19)
Reclassification of realized loss on interest rate swaps to net (loss) income, net of $—, $— and $(5) tax 0 0 17
Reclassification of realized loss on foreign currency translation to (loss) gain on the sale of businesses, net of $—, $— and $— tax 0 382 112
Foreign currency translation adjustment, net of $—, $(3) and $58 tax 1 (1) (134)
Other comprehensive income 87 289 1,059
COMPREHENSIVE INCOME (LOSS) $ 32 $ (10,009) $ (489)
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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Statement of Comprehensive Income [Abstract]      
Change in net actuarial loss, tax $ (30) $ 20 $ (205)
Reclassification of net actuarial loss to (loss) gain on the sale of business, tax 0 0 (142)
Change in net prior service cost, tax 4 4 (9)
Reclassification of prior service credit to (loss) gain on the sale of business, tax 0 0 6
Reclassification of realized loss on interest rate swaps to net (loss) income, tax 0 0 (5)
Reclassification of realized loss on foreign currency translation to (loss) gain on the sale of business, tax 0 0 0
Foreign currency translation adjustment and other, tax $ 0 $ (3) $ 58
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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
CURRENT ASSETS    
Cash and cash equivalents $ 1,889 $ 2,234
Accounts receivable, less allowance of $59 and $67 1,231 1,318
Other 1,274 1,223
Total current assets 4,394 4,775
Property, plant and equipment, net of accumulated depreciation of $23,121 and $21,318 20,421 19,758
GOODWILL AND OTHER ASSETS    
Goodwill 1,964 1,964
Other intangible assets, net 4,806 5,470
Other, net 1,911 2,051
Total goodwill and other assets 8,681 9,485
TOTAL ASSETS 33,496 34,018
CURRENT LIABILITIES    
Current maturities of long-term debt 412 157
Accounts payable 749 1,134
Accrued expenses and other liabilities    
Salaries and benefits 716 696
Income and other taxes 272 251
Current operating lease liabilities 253 268
Interest 197 168
Other 179 213
Current portion of deferred revenue 861 647
Total current liabilities 3,639 3,534
LONG-TERM DEBT 17,494 19,831
DEFERRED CREDITS AND OTHER LIABILITIES    
Deferred income taxes, net 2,890 3,127
Benefit plan obligations, net 2,205 2,490
Deferred revenue 3,733 1,969
Other 3,071 2,650
Total deferred credits and other liabilities 11,899 10,236
COMMITMENTS AND CONTINGENCIES (Note 18)
STOCKHOLDERS' EQUITY    
Preferred stock — non-redeemable, $25.00 par value, authorized 2,000 and 2,000 shares, issued and outstanding 7 and 7 shares 0 0
Common stock, $0.00 and $1.00 par value, authorized 2,200,000 and 2,200,000 shares, issued and outstanding 1,014,768 and 1,008,486 shares 19,149 1,008
Additional paid-in capital 0 18,126
Accumulated other comprehensive loss (723) (810)
Accumulated deficit (17,962) (17,907)
Total stockholders' equity 464 417
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY $ 33,496 $ 34,018
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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
shares in Thousands, $ in Millions
Dec. 31, 2024
Dec. 31, 2023
Statement of Financial Position [Abstract]    
Accounts receivable, allowance $ 59 $ 67
Property, plant and equipment, net of accumulated depreciation $ 23,121 $ 21,318
Preferred stock-non-redeemable, par value (in dollars per share) $ 25.00 $ 25.00
Preferred stock-non-redeemable, authorized shares (in shares) 2,000 2,000
Preferred stock-non-redeemable, issued shares (in shares) 7 7
Preferred stock-non-redeemable, outstanding shares (in shares) 7 7
Common stock, par value (in dollars per share) $ 0.00 $ 1.00
Common stock, authorized shares (in shares) 2,200,000 2,200,000
Common stock, issued shares (in shares) 1,014,768 1,008,486
Common stock, outstanding shares (in shares) 1,014,768 1,008,486
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CONSOLIDATED STATEMENTS OF CASH FLOWS
12 Months Ended
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
OPERATING ACTIVITIES      
Net loss $ (55,000,000) $ (10,298,000,000) $ (1,548,000,000)
Adjustments to reconcile net loss to net cash provided by operating activities:      
Depreciation and amortization 2,956,000,000 2,985,000,000 3,239,000,000
Net loss (gain) on sale of businesses 17,000,000 121,000,000 (113,000,000)
Loss on disposal groups held for sale 0 0 40,000,000
Goodwill impairment 0 10,693,000,000 3,271,000,000
Impairment of long-lived assets 83,000,000 27,000,000 5,000,000
Deferred income taxes (209,000,000) 8,000,000 (1,230,000,000)
Provision for uncollectible accounts 72,000,000 100,000,000 133,000,000
Net gain on early retirement of debt (348,000,000) (618,000,000) (214,000,000)
Debt modification costs and related fees (79,000,000) 0 0
Gain on sale of investment (205,000,000) 0 0
Unrealized loss on investments 10,000,000 97,000,000 191,000,000
Stock-based compensation 29,000,000 52,000,000 98,000,000
Changes in current assets and liabilities:      
Accounts receivable 19,000,000 102,000,000 (158,000,000)
Accounts payable (202,000,000) (97,000,000) 98,000,000
Accrued income and other taxes (189,000,000) (1,185,000,000) 972,000,000
Other current assets and liabilities, net 304,000,000 (549,000,000) (372,000,000)
Retirement benefits (181,000,000) (1,000,000) 46,000,000
Change in deferred revenue 1,763,000,000 230,000,000 6,000,000
Changes in other noncurrent assets and liabilities, net 655,000,000 500,000,000 252,000,000
Other, net (107,000,000) (7,000,000) 19,000,000
Net cash provided by operating activities 4,333,000,000 2,160,000,000 4,735,000,000
INVESTING ACTIVITIES      
Capital expenditures (3,231,000,000) (3,100,000,000) (3,016,000,000)
Proceeds from sale of businesses 15,000,000 1,746,000,000 8,369,000,000
Proceeds from sale of property, plant and equipment, and other assets 366,000,000 165,000,000 120,000,000
Other, net 20,000,000 (12,000,000) 3,000,000
Net cash (used in) provided by investing activities (2,830,000,000) (1,201,000,000) 5,476,000,000
FINANCING ACTIVITIES      
Net proceeds from issuance of long-term debt 1,325,000,000 0 0
Payments of long-term debt (2,678,000,000) (185,000,000) (8,093,000,000)
Net (payments of) proceeds from revolving line of credit (200,000,000) 200,000,000 (200,000,000)
Dividends paid (3,000,000) (11,000,000) (780,000,000)
Debt issuance and extinguishment costs and related fees (283,000,000) (14,000,000) 0
Repurchases of common stock 0 0 (200,000,000)
Other, net (12,000,000) (8,000,000) (40,000,000)
Net cash used in financing activities (1,851,000,000) (18,000,000) (9,313,000,000)
Net (decrease) increase in cash, cash equivalents and restricted cash (348,000,000) 941,000,000 898,000,000
Cash, cash equivalents and restricted cash at beginning of period 2,248,000,000 1,307,000,000 409,000,000
Cash, cash equivalents and restricted cash at end of period 1,900,000,000 2,248,000,000 1,307,000,000
Supplemental cash flow information:      
Income taxes refunded (paid), net 242,000,000 (1,303,000,000) (76,000,000)
Interest paid (net of capitalized interest of $176, $111 and $66) (1,245,000,000) (1,138,000,000) (1,365,000,000)
Supplemental non-cash information regarding financing activities:      
Cancellation of senior unsecured notes as part of exchange offers (Note 7) 0 (1,554,000,000) 0
Issuance of senior secured notes as part of exchange offers (Note 7) 0 924,000,000 0
Cash, cash equivalents and restricted cash:      
Cash and cash equivalents 1,889,000,000 2,234,000,000 1,251,000,000
Cash and cash equivalents and restricted cash included in Assets held for sale 0 0 44,000,000
Restricted cash included in Other current assets 2,000,000 4,000,000 0
Restricted cash included in Other, net noncurrent assets 9,000,000 10,000,000 12,000,000
Total $ 1,900,000,000 $ 2,248,000,000 $ 1,307,000,000
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CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Statement of Cash Flows [Abstract]      
Capitalized interest $ 176 $ 111 $ 66
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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Millions
Total
COMMON STOCK
ADDITIONAL PAID-IN CAPITAL
ACCUMULATED OTHER COMPREHENSIVE LOSS
ACCUMULATED DEFICIT
Balance at beginning of period at Dec. 31, 2021   $ 1,024 $ 18,972 $ (2,158) $ (6,061)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock through dividend reinvestment, incentive and benefit plans   11      
Repurchases of common stock $ (200) (33) (167)    
Shares withheld to satisfy tax withholdings     (30)    
Stock-based compensation and other, net     96    
Dividends declared     (791)    
Conversion to no-par stock value (Note 1)   0 0    
Other     0    
Other comprehensive income 1,059     1,059  
Net loss (1,548)       (1,548)
Balance at end of period at Dec. 31, 2022 $ 10,374 1,002 18,080 (1,099) (7,609)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share) $ 0.75        
Issuance of common stock through dividend reinvestment, incentive and benefit plans   6      
Repurchases of common stock   0 0    
Shares withheld to satisfy tax withholdings     (5)    
Stock-based compensation and other, net     50    
Dividends declared     1    
Conversion to no-par stock value (Note 1)   0 0    
Other     0    
Other comprehensive income $ 289     289  
Net loss (10,298)       (10,298)
Balance at end of period at Dec. 31, 2023 $ 417 1,008 18,126 (810) (17,907)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share) $ 0        
Issuance of common stock through dividend reinvestment, incentive and benefit plans   8      
Repurchases of common stock   0 0    
Shares withheld to satisfy tax withholdings     (6)    
Stock-based compensation and other, net     27    
Dividends declared     0    
Conversion to no-par stock value (Note 1)   18,133 (18,133)    
Other     (14)    
Other comprehensive income $ 87     87  
Net loss (55)       (55)
Balance at end of period at Dec. 31, 2024 $ 464 $ 19,149 $ 0 $ (723) $ (17,962)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share) $ 0        
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Background and Summary of Significant Accounting Policies
12 Months Ended
Dec. 31, 2024
Accounting Policies [Abstract]  
Background and Summary of Significant Accounting Policies
Note 1—Background and Summary of Significant Accounting Policies

General

We are a networking company with the goal of connecting people, data, and applications quickly, securely and effortlessly. We are unleashing the world's digital potential by providing a broad array of integrated products and services to our domestic and global Business customers and our domestic Mass Markets customers. We operate one of the world’s most interconnected networks. Our platform empowers our customers to swiftly adjust digital programs to meet immediate demands, create efficiencies, accelerate market access and reduce costs, which allows our customers to rapidly evolve their IT programs to address dynamic changes. Our specific products and services are detailed in Note 4—Revenue Recognition.

Basis of Presentation

The accompanying consolidated financial statements include our accounts and the accounts of our subsidiaries in which we have a controlling interest. Intercompany amounts and transactions with our consolidated subsidiaries have been eliminated.

To simplify the overall presentation of our consolidated financial statements, we report immaterial amounts attributable to noncontrolling interests in certain of our subsidiaries as follows: (i) income attributable to noncontrolling interests in other income (expense), net, (ii) equity attributable to noncontrolling interests in additional paid-in capital and (iii) cash flows attributable to noncontrolling interests in other, net financing activities.

We reclassified certain prior period amounts to conform to the current period presentation, including the recategorization of our Business revenue by product category and sales channel in our segment reporting for 2023 and 2022. See Note 17—Segment Information for additional information. These changes had no impact on total operating revenue, total operating expenses or net loss for any period.

Operating Expenses

Our current definitions of operating expenses are as follows:

Cost of services and products (exclusive of depreciation and amortization) are expenses incurred in providing products and services to our customers. These expenses include: employee-related expenses directly attributable to operating and maintaining our network (such as salaries, wages, benefits and professional fees); facilities expenses (which include third-party telecommunications expenses we incur for using other carriers' networks to provide services to our customers); rents and utilities expenses; equipment sales expenses (such as data integration and modem expenses); and other expenses directly related to our operations; and

Selling, general and administrative expenses are corporate overhead and other operating expenses. These expenses include: employee-related expenses (such as salaries, wages, internal commissions, benefits and professional fees) directly attributable to selling products or services and employee-related expenses for administrative functions; marketing and advertising; property and other operating taxes and fees; external commissions; legal expenses associated with general matters; bad debt expense; and other selling, general and administrative expenses.

These expense classifications may not be comparable to those of other companies.
Summary of Significant Accounting Policies

Use of Estimates

Our consolidated financial statements are prepared in accordance with U.S. generally accepted accounting principles. These accounting principles require us to make certain estimates, judgments and assumptions. We believe that the estimates, judgments and assumptions we make when accounting for specific items and matters are reasonable, based on information available at the time they are made. These estimates, judgments and assumptions can materially affect the reported amounts of assets, liabilities and components of stockholders' equity as of the dates of the consolidated balance sheets, as well as the reported amounts of revenue, expenses and components of cash flows during the periods presented in our other consolidated financial statements. We also make estimates in our assessments of potential losses in relation to threatened or pending tax and legal matters. See Note 16—Income Taxes and Note 18—Commitments, Contingencies and Other Items for additional information.

For matters not related to income taxes, if a loss is considered probable and the amount can be reasonably estimated, we recognize an expense for the estimated loss. If we have the potential to recover a portion of the estimated loss from a third party, we make a separate assessment of recoverability and reduce the estimated loss if recovery is also deemed probable.

For matters related to income taxes, if we determine the impact of an uncertain tax position is more likely than not to be sustained upon audit by the relevant taxing authority, then we recognize a benefit for the largest amount that is more likely than not to be sustained. We do not recognize any portion of an uncertain tax position if the position has less than a 50% likelihood of being sustained. We recognize interest on the amount of unrecognized benefit from uncertain tax positions.

For all of these and other matters, actual results could differ materially from our estimates.

Assets Held for Sale

We classify assets and related liabilities as held for sale when: (i) management has committed to a plan to sell the assets, (ii) the net assets are available for immediate sale, (iii) there is an active program to locate a buyer and (iv) the sale and transfer of the net assets is probable within one year. Assets and liabilities held for sale are presented separately on our consolidated balance sheets with a valuation allowance, if necessary, to recognize the net carrying amount at the lower of cost or fair value, less costs to sell. Depreciation of property, plant and equipment and amortization of finite-lived intangible assets and right-of-use assets are not recorded while these assets are classified as held for sale. For each period that assets are classified as being held for sale, they are tested for recoverability. Unless otherwise specified, the amounts and information presented in the notes do not include assets and liabilities that were classified as held for sale as of December 31, 2023 and December 31, 2022. See Note 2—Divestitures of the Latin American, ILEC and EMEA Businesses for additional information.

Revenue Recognition

We earn most of our consolidated revenue from contracts with customers, primarily through the provision of communications and other services. Revenue from contracts with customers is accounted for under Accounting Standards Codification ("ASC") 606. We also earn revenue from leasing arrangements (primarily from fiber capacity and conduit leases and colocation agreements) and governmental subsidy payments, which are not accounted for under ASC 606.
Revenue is recognized when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to receive in exchange for those goods or services. Revenue is recognized based on the following five-step model:

Identification of the contract with a customer;

Identification of the performance obligations in the contract;

Determination of the transaction price;

Allocation of the transaction price to the performance obligations in the contract; and

Recognition of revenue when, or as, we satisfy a performance obligation.

We provide an array of communications services to business and residential customers, including local voice, VPN, Ethernet, data, broadband, private line (including special access), network access, transport, voice, information technology, video and other ancillary services. We provide these services to a wide range of businesses, including global, enterprise, wholesale, government, and small and medium business customers. Certain contracts also include the sale of equipment, which is not significant to our business.

We recognize revenue for services when we provide the applicable service or when control of a product is transferred. Recognition of certain payments received in advance of services being provided is deferred. These advance payments may include design, planning and engineering fees, as well as certain activation and installation charges. If these advance payments are not separate performance obligations, we recognize them as revenue over the actual or expected contract term using historical experience, which typically ranges from one to five years depending on the service. In most cases, termination fees or other fees on existing contracts that are negotiated in conjunction with new contracts are deferred and recognized over the new contract term.

For access services, we generally bill fixed monthly charges one month in advance to customers and recognize revenue as service is provided over the contract term in alignment with the customer's receipt of service. For usage and other ancillary services, we generally bill in arrears and recognize revenue as usage or delivery occurs. In most cases, the amount invoiced for our service offerings constitutes the price that would be billed on a standalone basis.

In certain cases, customers may be permitted to modify their contracts. We evaluate the change in scope or price to identify whether the modification should be treated as a separate contract, as a termination of the existing contract and creation of a new contract, or as a change to the existing contract.

Customer contracts are evaluated to determine whether the performance obligations are separable. If the performance obligations are deemed separable and separate earnings processes exist, the total transaction price that we expect to receive with the customer is allocated to each performance obligation based on its relative standalone selling price. The revenue associated with each performance obligation is then recognized as earned.

We periodically sell transmission capacity on our network. These transactions are generally structured as indefeasible rights of use, commonly referred to as IRUs, which are the exclusive right to use a specified amount of capacity or fiber for a specified term, typically 20 years. In most cases, we account for the cash consideration received on transfers of transmission capacity as ASC 606 revenue which is adjusted for the time value of money and is recognized ratably over the term of the agreement. Cash consideration received on transfers of dark fiber is accounted for as non-ASC 606 lease revenue, which we also recognize ratably over the term of the agreement. We do not recognize revenue on any contemporaneous exchanges of our transmission capacity assets for other non-owned transmission capacity assets.

In connection with offering products and services provided to the end user by third-party vendors, we review the relationship between us, the vendor and the end user to assess whether revenue should be reported on a gross or net basis. In assessing whether revenue should be reported on a gross or net basis, we consider whether we act as a principal in the transaction and control the goods and services used to fulfill the performance obligations associated with the transaction.
We have service level commitments pursuant to contracts with certain of our customers. To the extent that we determine that such service levels were not achieved or may not have been achieved, we estimate the amount of credits to be issued and record a corresponding reduction to revenue in the period that the service level commitment was not met or may not be met.

Customer payments are made based on billing schedules included in our customer contracts, which is typically on a monthly basis.

We defer (or capitalize) incremental contract acquisition and fulfillment costs and recognize (or amortize) such costs over the average contract life. Our deferred contract costs for our customers have average amortization periods of approximately 50 months for Mass Markets customers and 35 months for Business customers. These deferred costs are periodically monitored to reflect any significant change in assumptions.

See Note 4—Revenue Recognition for additional information.

Advertising Costs

Costs related to advertising are expensed as incurred and recorded as selling, general and administrative expenses in our consolidated statements of operations. Our advertising expense was $94 million, $87 million and $62 million for the years ended December 31, 2024, 2023 and 2022, respectively.

Legal Costs

In the normal course of our business, we incur costs to hire and retain external legal counsel to advise us on finance, regulatory, litigation and other matters. Subject to certain exceptions, we expense these costs as the related services are received.

Income Taxes

We file a consolidated federal income tax return with our eligible subsidiaries. The provision for income taxes reflects taxes currently payable, tax consequences deferred to future periods and adjustments to our liabilities for uncertain tax positions. We record deferred income tax assets and liabilities reflecting future tax consequences attributable to tax NOLs, tax credit carryforwards and differences between the financial statement carrying value of assets and liabilities and the tax basis of those assets and liabilities. Deferred taxes are computed using enacted tax rates expected to apply in the year in which the differences are expected to affect taxable income. The effect on deferred income tax assets and liabilities of a change in tax rate is recognized in earnings in the period that includes the enactment date.

We establish valuation allowances when necessary to reduce deferred income tax assets to the amounts that we believe are more likely than not to be recovered. Each quarter we evaluate the need to retain or adjust each valuation allowance on our deferred tax assets. See Note 16—Income Taxes for additional information.

Cash and Cash Equivalents

Cash and cash equivalents include highly liquid investments that are readily convertible into cash and are not subject to significant risk from fluctuations in interest rates. As a result, the value at which cash and cash equivalents are reported in our consolidated financial statements approximates their fair value. In evaluating investments for classification as cash equivalents, we require that individual securities have original maturities of ninety days or less and that individual investment funds have dollar-weighted average maturities of ninety days or less. To preserve capital and maintain liquidity, we invest with financial institutions we deem to be of sound financial condition and in high quality and relatively risk-free investment products. Our cash investment policy limits the concentration of investments with specific financial institutions or among certain products and includes criteria related to credit worthiness of any particular financial institution.
Book overdrafts occur when we have issued checks but they have not yet been presented to our controlled disbursement bank accounts for payment. Disbursement bank accounts allow us to delay funding of issued checks until the checks are presented for payment. Until the issued checks are presented for payment, the book overdrafts are included in accounts payable on our consolidated balance sheets. This activity is included in the operating activities section in our consolidated statements of cash flows. There were $1 million and no book overdrafts included in accounts payable at December 31, 2024 and 2023, respectively.

Restricted Cash

Restricted cash consists primarily of cash and investments that collateralize our outstanding letters of credit and certain performance and operating obligations. Restricted cash is recorded as current or non-current assets in the consolidated balance sheets depending on the duration of the restriction and the purpose for which the restriction exists.

Accounts Receivable and Allowance for Credit Losses

Accounts receivable are recognized based upon the amount due from customers for the services provided or at cost for purchased and other receivables, less an allowance for credit losses. We use a loss rate method to estimate our allowance for credit losses. For more information on our methodology for estimating our allowance for credit losses, see Note 6—Credit Losses on Financial Instruments.

We generally consider our accounts past due if they are outstanding over 30 days. Our past due accounts are written off against our allowance for credit losses and any recoveries of accounts previously written off are generally recognized as a reduction in bad debt expense in the period received. The carrying value of accounts receivable net of the allowance for credit losses approximates fair value. Accounts receivable balances acquired in a business combination are recorded at fair value for all balances receivable at the acquisition date and at the invoiced amount for those amounts invoiced after the acquisition date.

Property, Plant and Equipment

We record property, plant and equipment acquired in connection with our business acquisitions based on its estimated fair value as of its acquisition date plus the estimated value of any associated legally or contractually required retirement obligations. We record purchased and constructed property, plant and equipment at cost, plus the estimated value of any associated legally or contractually required retirement obligations. Prior to January 1, 2024, we depreciated the majority of our property, plant and equipment using the straight-line group method over the estimated useful lives of groups of assets. Under the straight-line group method, assets dedicated to providing telecommunications services (which comprise the majority of our property, plant and equipment) that have similar physical characteristics, use and expected useful lives are pooled for purposes of depreciation and tracking. We used the equal life group procedure to establish each pool's average remaining useful life. Generally, under the straight-line group method, when an asset is sold or retired in the course of normal business activities, the cost is deducted from property, plant and equipment and charged to accumulated depreciation without recognition of a gain or loss. Effective January 1, 2024, we re-established all of our assets individually, including accumulated depreciation, and began to depreciate all of our assets using the straight-line method over the estimated useful lives of the specific asset. A gain or loss is recognized in our consolidated statements of operations only if a disposal is unusual. Leasehold improvements are amortized over the shorter of the useful lives of the assets or the expected lease term. Expenditures for maintenance and repairs are expensed as incurred. During the construction phase of network and other internal-use capital projects, we capitalize related employee and interest costs. Property, plant and equipment supplies used internally are carried at average cost, except for significant individual items which are carried at actual cost.

We perform annual internal reviews to evaluate the reasonableness of the depreciable lives for our property, plant and equipment. Our reviews utilize models that take into account actual usage, physical wear and tear, replacement history, assumptions about technology evolution and, in certain instances, actuarially determined probabilities to estimate the remaining useful life of our asset base. Our remaining useful life assessments evaluate the possible loss in service value of assets that may precede the physical retirement. Assets shared among many customers may lose service value as those customers reduce their use of the asset. However, the asset is not retired until all customers no longer utilize the asset and we determine there is no alternative use for the asset.
We have asset retirement obligations associated with the legally or contractually required removal of a limited group of property, plant and equipment assets from leased properties and the disposal of certain hazardous materials present in our owned properties. When an asset retirement obligation is identified, usually in association with the acquisition of the asset, we record the fair value of the obligation as a liability. The fair value of the obligation is also capitalized as property, plant and equipment and then amortized over the estimated remaining useful life of the associated asset. Where the removal obligation is not legally binding, we expense the net cost to remove assets in the period in which the costs are actually incurred.

We review long-lived tangible assets for impairment whenever facts and circumstances indicate that the carrying amounts of the assets may not be recoverable. For assessment purposes, long-lived assets are grouped with other assets and liabilities at the lowest identifiable level for which we generate cash flows independently of other groups of assets and liabilities, absent a material change in operations. An impairment loss is recognized only if the carrying amount of the asset group is not recoverable and exceeds its estimated fair value. Recoverability of the asset group to be held and used is assessed by comparing the carrying amount of the asset group to the estimated undiscounted future net cash flows expected to be generated by the asset group. If the asset group's carrying value is not recoverable, we recognize an impairment charge for the amount by which the carrying amount of the asset group exceeds its estimated fair value.

Goodwill, Customer Relationships and Other Intangible Assets

We initially record intangible assets arising from business combinations, such as goodwill, customer relationships, capitalized software, trademarks and trade names, at estimated fair value. We amortize customer relationships primarily over an estimated life of seven to 14 years, using the straight-line method, depending on the type of customer. We amortize capitalized software using the straight-line method primarily over estimated lives ranging up to seven years. We amortize our other intangible assets using the straight-line method over an estimated life of nine to 20 years. Other intangible assets not arising from business combinations are initially recorded at cost. Where there are no legal, regulatory, contractual or other factors that would reasonably limit the useful life of an intangible asset, we classify them as indefinite-lived intangible assets and such intangible assets are not amortized.

Internally used software, whether purchased or developed by us, is capitalized and amortized using the straight-line method over its estimated useful life. We have capitalized certain costs associated with software such as costs of employees devoted to software development and external direct costs for materials and services. Costs associated with software to be used for internal purposes are expensed until the point at which the project has reached the development stage. Subsequent additions, modifications or upgrades to internal-use software are capitalized only to the extent that they allow the software to perform a task it previously did not perform. Software maintenance, data conversion and training costs are expensed in the period in which they are incurred. We review the remaining economic lives of our capitalized software annually. Capitalized software is included in other intangible assets, net, in our consolidated balance sheets.

Our long-lived intangible assets, other than goodwill, with indefinite lives are assessed for impairment annually, or, under certain circumstances, more frequently, such as when events or changes in circumstances indicate there may be an impairment. These assets are carried at the estimated fair value at the time of acquisition and assets not acquired in acquisitions are recorded at historical cost. However, if their estimated fair value is less than the carrying amount, we recognize an impairment charge for the amount by which the carrying amount of these assets exceeds their estimated fair value.

We are required to assess our goodwill for impairment annually, or more frequently if an event occurs or circumstances change that indicates it is more likely than not the fair values of any of our reporting units were less than their carrying values. We are required to write-down the value of goodwill of our reporting units in periods in which the recorded carrying value of any such unit exceeds its fair value of equity. Our reporting units are not discrete legal entities with discrete full financial statements. Therefore, we assess the equity carrying value and future cash flows each time we perform a goodwill impairment assessment on a reporting unit. To do so, we assign our assets, liabilities and cash flows to reporting units using allocation methodologies which we believe are reasonable and consistent. This process entails various estimates, judgments and assumptions.
We are required to reassign goodwill to reporting units whenever reorganizations of our internal reporting structure change the composition of our reporting units. Goodwill is reassigned to the reporting units using a relative fair value approach. When the fair value of a reporting unit is available, we allocate goodwill based on the relative fair value of the reporting units. When fair value is not available, we utilize an alternative allocation methodology that we believe represents a reasonable approximation of the fair value of the operations being reorganized.

For more information, see Note 3—Goodwill, Customer Relationships and Other Intangible Assets.

Derivatives and Hedging

From time to time we have used derivative instruments to hedge exposure to interest rate risks arising from fluctuation in interest rates. We account for derivative instruments in accordance with ASC 815, Derivatives and Hedging, which establishes accounting and reporting standards for derivative instruments. We do not use derivative financial instruments for speculative purposes.

Derivatives are recognized in the consolidated balance sheets at their fair values. When we become a party to a derivative instrument and intend to apply hedge accounting, we formally document the hedge relationship and the risk management objective for undertaking the hedge, which includes designating the instrument for financial reporting purposes as a fair value hedge, a cash flow hedge, or a net investment hedge.

As of December 31, 2024, we were not party to any swap agreements. All of our variable-to-fixed interest rate swap agreements in place at the beginning of 2022 expired during the first half of 2022. While we held these agreements, we evaluated the effectiveness as described in Note 15—Derivative Financial Instruments (designated as cash-flow hedges) qualitatively on a quarterly basis. We reflected the change in the fair value of the interest rate swaps in accumulated other comprehensive loss and subsequently reclassified into earnings in the period the hedged transaction affects earnings, by virtue of qualifying as effective cash flow hedges. For more information see Note 15—Derivative Financial Instruments.

Pension and Post-Retirement Benefits

We recognize the funded status of our defined benefit and post-retirement plans as an asset or a liability on our consolidated balance sheets. Each year's actuarial gains or losses are a component of our other comprehensive income (loss), which is then included in our accumulated other comprehensive loss on our consolidated balance sheets. Pension and post-retirement benefit expenses are recognized over the period in which the employee renders service and becomes eligible to receive benefits. We make significant assumptions (including the discount rate, expected rate of return on plan assets, mortality and health care trend rates) in computing the pension and post-retirement benefits expense and obligations. See Note 11—Employee Benefits for additional information.

Foreign Currency

Local currencies of our foreign subsidiaries are the functional currencies for financial reporting purposes except for certain foreign subsidiaries, primarily in Latin America prior to the August 1, 2022 sale of our Latin American business. For operations outside the United States that have functional currencies other than the U.S. dollar, assets and liabilities are translated to U.S. dollars at period-end exchange rates, and revenue, expenses and cash flows are translated using average monthly exchange rates. Prior to the November 1, 2023 sale of our EMEA business and the August 1, 2022 sale of our Latin American business, a significant portion of our non-United States subsidiaries used the British pound, the Euro, or the Brazilian Real, as their functional currency, each of which experienced significant fluctuations against the U.S. dollar during the periods covered by this report when we operated the divested businesses. We recognize foreign currency translation gains and losses as a component of accumulated other comprehensive loss in stockholders' equity in our consolidated balance sheet and in our consolidated statements of comprehensive (loss) income in accordance with accounting guidance for foreign currency translation. Prior to the completion of our divestitures as discussed in Note 2—Divestitures of the Latin American, ILEC and EMEA Businesses, we considered the majority of our investments in our foreign subsidiaries to be long-term in nature. Our foreign currency transaction gains (losses), including where transactions with our non-United States subsidiaries are not considered to be long-term in nature, are included within other income (expense), net on our consolidated statements of operations.
Common Stock

On December 18, 2024, we amended our articles of incorporation to eliminate the par value of our common stock (which was, prior to such amendment, $1.00 per share) as approved by our shareholders at our 2024 annual shareholders meeting. We recognized the change by reclassifying the balance in Additional paid-in capital to Common stock on our consolidated balance sheet as of December 18, 2024. All changes in capitalization previously recognized as Additional paid-in capital will hereinafter be recognized in Common stock. This change had no other impact on our consolidated financial statements.

As of December 31, 2024, we had 41 million shares authorized for future issuance under our equity incentive plans.

Preferred Stock

Holders of outstanding Lumen Technologies preferred stock are entitled to receive cumulative dividends, receive preferential distributions equal to $25 per share plus unpaid dividends upon Lumen's liquidation and vote as a single class with the holders of common stock.

Section 382 Rights Plan

We maintain a Section 382 Rights Plan to protect our U.S. federal net operating loss carryforwards ("NOLs") from certain Internal Revenue Code Section 382 limitations. Under the plan, one preferred stock purchase right was distributed for each share of our outstanding common stock as of the close of business on February 25, 2019, and those rights currently trade in tandem with the common stock until they expire or detach under the plan. This plan was designed to deter trading that would result in a change of control (as defined in Code Section 382), and therefore protect our ability to use our historical federal NOLs in the future. The plan is scheduled to lapse in late 2026.

Dividends

The declaration and payment of dividends is at the discretion of our Board of Directors. On November 2, 2022, we announced that our Board had terminated our quarterly cash dividend program.


Change in Accounting Estimates

Effective January 1, 2024, we changed our method of depreciation and amortization for incumbent local exchange carriers ("ILEC") and certain competitive local exchange carriers ("CLEC") fixed assets from the group method of depreciation to straight-line by individual asset method. Historically, we have used the group method of depreciation for the property, plant and equipment and amortization of certain intangible capitalized software assets of our ILECs and certain CLECs. Under the group method, all like kind assets for each subsidiary were combined into common pools and depreciated under composite depreciation rates. Recent business divestitures and asset sales have significantly reduced our composite asset base. We believe the straight-line depreciation method for individual assets is preferable to the group method as it will result in a more precise estimate of depreciation expense and will result in a consistent depreciation method for all our subsidiaries. This change in the method of depreciation is considered a change in accounting estimate inseparable from a change in accounting principle and has resulted solely in prospective changes to our depreciation and amortization expense. This change in accounting estimate had an immaterial impact to our net loss and diluted loss per share for the year ended December 31, 2024.

Additionally, during the first quarter of 2024, we updated our analysis of economic lives of owned fiber network assets. As of January 1, 2024, we extended the estimated economic life and depreciation period of such assets from 25 years to 30 years to better reflect the physical life of the assets that we have experienced and absence of technological changes that would replace fiber. The change in accounting estimate decreased depreciation expense by approximately $63 million, $48 million net of tax for the year ended December 31, 2024, and resulted in an increase of $0.05, per diluted share for the year ended December 31, 2024.
Recently Adopted Accounting Pronouncements

Segments

On January 1, 2024, we adopted Accounting Standards Update ("ASU") 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures.” This ASU is intended to improve reportable segment disclosure requirements primarily through enhanced disclosures about significant segment expenses. The ASU does not change how a public entity identifies its operating segments, aggregates them or applies quantitative thresholds to determine reportable segments. We did not early adopt this standard. Refer to Note 17—Segment Information for more information on the impact of this ASU on our consolidated financial statements.

Government Assistance

On January 1, 2022, we adopted ASU 2021-10 "Government Assistance (Topic 832): Disclosures by Business Entities about Government Assistance.” This ASU requires business entities to disclose information about certain types of government assistance they receive. Refer to Note 4—Revenue Recognition for more information on the impact of this ASU on our consolidated financial statements.

Investments

On January 1, 2024, we adopted ASU 2023-02, “Investments-Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method." This ASU allows reporting entities to elect to account for qualifying tax equity investments using the proportional amortization method, regardless of the program giving rise to the related income tax credits. The adoption of this ASU did not have any impact on our consolidated financial statements.

On January 1, 2024, we adopted ASU 2022-03, “Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions." This ASU clarifies that a contractual restriction on the sales of an investment in an equity security is not considered part of the unit of account of the equity security and, therefore, is not considered in measuring its fair value. The adoption of this ASU did not have any impact on our consolidated financial statements.

Leases

On January 1, 2024, we adopted ASU 2023-01, “Leases (Topic 842): Common Control Arrangements.” This ASU requires all entities to amortize leasehold improvements associated with common control leases over the useful life to the common control group. The adoption of this ASU did not have any impact on our consolidated financial statements.

On January 1, 2022, we adopted ASU 2021-05, “Leases (Topic 842): Lessors—Certain Leases with Variable Lease Payments.” This ASU (i) amends the lease classification requirements for lessors, (ii) provides criteria for lessors to classify and account for a lease with variable lease payments that do not depend on a reference index or a rate as an operating lease; and (iii) provides guidance with respect to net investments by lessors under operating leases and other related topics. The adoption of this ASU did not have a material impact on our consolidated financial statements.

Reference Rate Reform

In December 2022, the Financial Accounting Standards Board (“FASB”) issued ASU 2022-06, “Reference Rate Reform (Topic 848) – Deferral of the Sunset Date of Topic 848." This ASU, which was effective upon issuance, extends the period of time preparers can utilize the reference rate reform relief guidance in Topic 848, by deferring the sunset date from December 31, 2022, to December 31, 2024, after which entities will no longer be permitted to apply the relief in Topic 848. Based on our review of our key material contracts through December 31, 2024, this ASU does not have a material impact on our consolidated financial statements.
Supplier Finance Programs

On January 1, 2023, we adopted ASU 2022-04, “Liabilities-Supplier Finance Program (Subtopic 405-50): Disclosure of Supplier Finance Program Obligations.” This ASU requires a company that uses a supplier finance program in connection with the purchase of goods or services to disclose sufficient information about the program to allow a user of financial statements to understand the program’s nature, program activity during the period, changes from period to period and the potential magnitude of program transactions. The adoption of this ASU did not have a material impact on our consolidated financial statements.

Credit Losses

On January 1, 2023, we adopted ASU 2022-02, “Financial Instruments-Credit Losses (Topic 326): Troubled Debt Restructurings (“TDR”) and Vintage Disclosures.” The ASU eliminates the TDR recognition and measurement guidance, enhances existing disclosure requirements and introduces new requirements related to certain modifications of receivables made to borrowers experiencing financial difficulty. The adoption of this ASU did not have a material impact on our consolidated financial statements.

Adoption of Other ASUs

In July 2023, the FASB issued ASU 2023-03, “Presentation of Financial Statements (Topic 205), Income Statement—Reporting Comprehensive Income (Topic 220), Distinguishing Liabilities from Equity (Topic 480), Equity (Topic 505), and Compensation—Stock Compensation (Topic 718): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 120, SEC Staff Announcement at the March 24, 2022 EITF Meeting, and Staff Accounting Bulletin Topic 6.B, Accounting Series Release 280—General Revision of Regulation S-X: Income or Loss Applicable to Common Stock.” This ASU became effective for us once the addition to the FASB Codification was made available in July 2023. This ASU amends or supersedes various SEC paragraphs within the applicable codification to conform to past SEC staff announcements. This ASU does not provide any new guidance. The adoption of this ASU did not have any impact on our consolidated financial statements.

Recently Issued Accounting Pronouncements

In November 2024, the FASB issued ASU 2024-04, "Debt—Debt with Conversion and Other Options (Subtopic 470-20): Induced Conversions of Convertible Debt Instruments." This ASU clarifies the requirements for determining whether certain settlements of convertible debt instruments should be accounted for as induced conversions rather than as debt extinguishments. This standard is effective for the annual period of fiscal 2026, and early adoption is permitted. As of December 31, 2024, we do not hold convertible debt instruments and do not expect this ASU will have any impact on our consolidated financial statements.

In November 2024, the FASB issued ASU 2024-03, "Disaggregation of Income Statement Expenses." This ASU requires additional footnote disclosure of the details of certain income statement expense line items as well as additional disclosure about selling expenses. This standard is effective for the annual period of fiscal 2027, and early adoption is permitted. The guidance is to be applied prospectively, with the option for retrospective application. We are currently evaluating the impact the adoption of this standard will have on our disclosures.

In December 2023, the FASB issued ASU 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures.” This ASU requires that public business entities must annually (1) disclose specific categories in the rate reconciliation and (2) provide additional information for reconciling items that meet a quantitative threshold (if the effect of those reconciling items is equal to or greater than 5 percent of the amount computed by multiplying pretax income or loss by the applicable statutory income tax rate). This ASU will become effective for us in the annual period of fiscal 2025 and early adoption is permitted. We have chosen not to early adopt this ASU and are currently evaluating its impact on our consolidated financial statements, including our annual disclosure within our Income Taxes footnote.
In December 2023, the FASB issued ASU 2023-08, “Intangibles—Goodwill and Other—Crypto Assets (Subtopic 350-60): Accounting for and Disclosure of Crypto Assets.” This ASU is intended to improve the accounting for certain crypto assets by requiring an entity to measure those crypto assets at fair value each reporting period with changes in fair value recognized in net income. The amendments also improve the information provided to investors about an entity’s crypto asset holdings by requiring disclosure about significant holdings, contractual sale restrictions, and changes during the reporting period. This ASU will become effective for us in the first quarter of fiscal 2025 and early adoption is permitted. As of December 31, 2024, we do not hold crypto assets and do not expect this ASU to have any impact on our consolidated financial statements.

In October 2023, the FASB issued ASU 2023-06, “Disclosure Improvements: Codification Amendments in Response to the SEC’s Disclosure Update and Simplification Initiative.” This ASU incorporates certain SEC disclosure requirements into the FASB Codification. The amendments in the ASU are expected to clarify or improve disclosure and presentation requirements of a variety of FASB Codification topics, allow users to more easily compare entities subject to the SEC’s existing disclosures with those entities that were not previously subject to the requirements, and align the requirements in the FASB Codification with the SEC’s regulations. This ASU will become effective for each amendment on the effective date of the SEC's corresponding disclosure rule changes. As of December 31, 2024, we do not expect this ASU to have any impact on our consolidated financial statements.

In August 2023, the FASB issued ASU 2023-05, “Business Combinations – Joint Venture Formations (Subtopic 805-60): Recognition and Initial Measurement.” This ASU applies to the formation of entities that meet the definition of a joint venture (or a corporate joint venture). The amendments in the ASU require that a joint venture apply a new basis of accounting upon formation. This ASU will become effective for us in the first quarter of fiscal 2025 and early adoption is permitted. As of December 31, 2024, we do not expect this ASU to have any impact on our consolidated financial statements.
v3.25.0.1
Divestitures of the Latin American, ILEC and EMEA Businesses
12 Months Ended
Dec. 31, 2024
Discontinued Operations and Disposal Groups [Abstract]  
Divestitures of the Latin American, ILEC and EMEA Businesses
Note 2—Divestitures of the Latin American, ILEC and EMEA Businesses

Latin American Business

On August 1, 2022, affiliates of Level 3 Parent, LLC, an indirect wholly-owned subsidiary of Lumen Technologies, Inc., sold Lumen’s Latin American business pursuant to a definitive agreement dated July 25, 2021, to a fund advised by Stonepeak Partners LP for pre-tax cash proceeds of approximately $2.7 billion.

For the year ended December 31, 2022, we recorded a $597 million net pre-tax gain on disposal associated with the sale of our Latin American business. This gain is reflected as operating income within the consolidated statements of operations.

In connection with the sale, we entered into a transition services agreement under which we provide the purchaser various support services. In addition, Lumen and the purchaser entered into commercial agreements whereby they provide each other various network and other commercial services. In addition, we agreed to indemnify the purchaser for certain matters for which future cash payments by Lumen could be required. At the time of sale, Lumen estimated the fair value of these indemnifications to be $86 million, which was included in other long-term liabilities in our consolidated balance sheet and reduced our gain on the sale accordingly. See Note 14—Fair Value of Financial Instruments for detail related to the carrying value and fair value of these indemnifications as of December 31, 2024 and 2023.

The Latin American business was included in our continuing operations and classified as assets and liabilities held for sale on our consolidated balance sheets through the closing of the transaction on August 1, 2022. As a result of closing the transaction, we derecognized net assets of $1.9 billion, primarily made up of (i) property, plant and equipment, net of accumulated depreciation, of $1.7 billion, (ii) goodwill of $245 million, (iii) other intangible assets, net of accumulated amortization, of $140 million, and (iv) deferred income tax liabilities, net, of $154 million. In addition, we reclassified $112 million of realized loss on foreign currency translation, net of tax, to partially offset the gain on sale of our Latin American business.
Portion of ILEC Business

On October 3, 2022, we and certain of our affiliates sold the portion of our ILEC business primarily conducted within 20 Midwestern and Southeastern states to affiliates of funds advised by Apollo Global Management, Inc. In exchange, we received $7.5 billion of consideration, which was reduced by approximately $0.4 billion of closing adjustments and partially paid through purchaser's assumption of approximately $1.5 billion of our long-term consolidated indebtedness, resulting in pre-tax cash proceeds of approximately $5.6 billion. We retained the remainder of our ILEC business, which is conducted in 17 states, primarily in the Western United States.

For the year ended December 31, 2022, we recorded a $176 million net pre-tax gain on disposal associated with the sale of our ILEC business. This gain is reflected as operating income within the consolidated statements of operations.

In connection with the sale, we entered into a transition services agreement under which we provide the purchaser various support services. In addition, Lumen and the purchaser entered into commercial agreements whereby they provide each other various network and other commercial services. Under these agreements, we committed to ordering services from the purchaser for which we expect to pay approximately $373 million over a period of three years and the purchaser has committed to ordering services from us for which we expect to receive approximately $67 million over a period of three years. We indemnified the purchaser for certain matters for which, at the time of closing, future cash payments by Lumen were expected. Lumen had estimated the fair value of these indemnifications to be $89 million, which was included in other current liabilities in our consolidated balance sheet as of December 31, 2022, and increased our income tax expense accordingly as of December 31, 2022. As of the first quarter of 2023, the full $89 million payment had been made.

The ILEC business was included in our continuing operations and classified as assets and liabilities held for sale on our consolidated balance sheets through the closing of the transaction on October 3, 2022. As a result of closing the transaction, we derecognized net assets of $4.8 billion, primarily made up of (i) property, plant and equipment, net of accumulated depreciation, of $3.6 billion, (ii) goodwill of $2.6 billion and (iii) long-term debt, net of discounts, of $1.4 billion. In addition, we reclassified $403 million of net actuarial loss and prior service credit related to the Lumen Pension Plan, net of tax, conveyed to the purchaser to partially offset the gain on the sale of our ILEC business.

EMEA Business

On November 1, 2023, affiliates of Level 3 Parent, LLC, sold Lumen's operations in Europe, the Middle East and Africa ("EMEA") to Colt Technology Services Group Limited, a portfolio company of Fidelity Investments, for pre-tax cash proceeds of $1.7 billion after certain closing adjustments and transaction costs. This consideration is further subject to other post-closing adjustments and indemnities set forth in the purchase agreement, as amended and supplemented to date. In connection with the sale, we entered into a transition services agreement under which we provide the purchaser various support services. In addition, Lumen and the purchaser entered into commercial agreements whereby they provide each other various network and other commercial services.

The classification of the EMEA business as held for sale was considered an event or change in circumstance which requires an assessment of the goodwill of the disposal group for impairment each reporting period until disposal. We performed a pre-classification and post-classification goodwill impairment test of the disposal group as described further in Note 3—Goodwill, Customer Relationships and Other Intangible Assets. As a result of our impairment tests, we determined the EMEA business disposal group was impaired, resulting in a non-cash, non-tax-deductible goodwill impairment charge of $43 million in the fourth quarter of 2022. We evaluated the recoverability of the carrying value of the assets and liabilities held for sale relative to the agreed upon sales price, adjusted for costs to sell, and recorded an estimated loss on disposal of $660 million during the year ended December 31, 2022 in the consolidated statement of operations and a valuation allowance included in assets held for sale on the consolidated balance sheet as of December 31, 2022. For the year ended December 31, 2023, we recorded a $102 million net loss on disposal associated with the sale of our EMEA business. This loss is reflected as operating expense within the consolidated statements of operations.
The EMEA business was included in our continuing operations and classified as assets and liabilities held for sale on our consolidated balance sheets through the closing of the transaction on November 1, 2023. As a result of closing the transaction, we derecognized net assets of $2.1 billion, primarily made up of (i) property, plant and equipment, net of accumulated depreciation, of $2.0 billion and (ii) customer relationships and other intangible assets, net of accumulated amortization of $107 million. In addition, we reclassified $382 million of realized loss on foreign currency translation, net of tax, with an offset to the valuation allowance and loss on sale of the EMEA business.

We do not believe these divestiture transactions represented a strategic shift for Lumen. Therefore, the divested businesses discussed above did not meet the criteria to be classified as discontinued operations. As a result, we continued to report our operating results for the Latin American, ILEC and EMEA businesses in our consolidated operating results through their respective disposal dates of August 1, 2022, October 3, 2022, and November 1, 2023, respectively.
v3.25.0.1
Goodwill, Customer Relationships and Other Intangible Assets
12 Months Ended
Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill, Customer Relationships and Other Intangible Assets
Note 3—Goodwill, Customer Relationships and Other Intangible Assets

Goodwill, customer relationships and other intangible assets consisted of the following:
As of December 31,
2024
2023
 (Dollars in millions)
Goodwill(1)
$1,964 1,964 
Indefinite-lived intangible assets$
Other intangible assets subject to amortization: 
Customer relationships(2), less accumulated amortization of $4,504 and $4,248
3,196 3,811 
Capitalized software, less accumulated amortization of $4,067 and $4,045(3)
1,529 1,564 
Patents and other, less accumulated amortization of $86 and $72(3)
72 86 
Total other intangible assets, net$4,806 5,470 
______________________________________________________________________ 
(1)We recorded cumulative non-cash, non-tax-deductible goodwill impairment charges of $10.7 billion during the year ended December 31, 2023.
(2)For the year ended December 31, 2023, customer relationships decreased $121 million in conjunction with the sale of select CDN customer contracts, in the fourth quarter of 2023 that resulted in a net loss of $73 million included in selling, general and administrative expenses in our consolidated statements of operations.
(3)Certain capitalized software with a gross carrying value of $352 million and $183 million and trade names with a gross carrying value of $153 million and $130 million became fully amortized during 2023 and 2022, respectively, and were retired during the first quarter of 2024 and 2023, respectively.

As of December 31, 2024 and December 31, 2023, the gross carrying amount of goodwill, customer relationships, indefinite-lived and other intangible assets was $15.4 billion and $15.8 billion, respectively.

Our goodwill was derived from numerous acquisitions where the purchase price exceeded the fair value of the net assets acquired.

We are required to assess our goodwill and other indefinite-lived intangible assets for impairment annually, or, under certain circumstances, more frequently, such as when events or changes in circumstances indicate there may be impairment. Our annual impairment assessment date for indefinite-lived intangible assets other than goodwill is December 31. We completed our qualitative assessment of our indefinite-lived intangible assets other than goodwill as of December 31, 2024, 2023 and 2022 and concluded it is more likely than not that our indefinite-lived intangible assets are not impaired; thus, no impairment charge for these assets was recorded in 2024, 2023 or 2022. We are required to write down the value of goodwill only when our assessment determines the carrying value of equity of any of our reporting units exceeds its fair value. Our annual impairment assessment date for goodwill is October 31, at which date we assess our reporting units.
We report our results within two segments: Business and Mass Markets. See Note 17—Segment Information for more information on these segments and the underlying sales channels. As of December 31, 2024, we had three reporting units for goodwill impairment testing, which are (i) Mass Markets, (ii) North America Business ("NA Business") and (iii) Asia Pacific ("APAC") region. Prior to the divestiture of the EMEA business in November 2023, the EMEA region was also a reporting unit and was tested for impairment in the pre-classification test as of October 31, 2022, discussed below. Similarly, prior to its August 2022 divestiture, the LATAM region was also a reporting unit.

Our reporting units are not discrete legal entities with discrete full financial statements. Our assets and liabilities are deployed in and relate to the operations of multiple reporting units. When we assess goodwill for impairment, we compare the estimated fair value of each reporting unit's equity to the carrying value of equity that we assign to the reporting unit. If the estimated fair value of the reporting unit is greater than the carrying value, we conclude that no impairment exists. If the estimated fair value of the reporting unit is less than the carrying value, we record a non-cash impairment charge equal to the excess amount. Depending on the facts and circumstances, we typically estimate the fair value of our reporting units by considering either or both of (i) a discounted cash flow method, which is based on the present value of projected cash flows over a discrete projection period and a terminal value, which is based on the expected normalized cash flows of the reporting units following the discrete projection period, and (ii) a market approach, which includes the use of market multiples of publicly-traded companies whose services are comparable to ours.

2024 Goodwill Impairment Analysis

At October 31, 2024, we performed our annual impairment analysis of the goodwill in our Mass Markets reporting unit by using a qualitative assessment to determine whether it was more likely than not that the fair value of the reporting unit was less than its carrying value. Factors considered in the qualitative assessment included, among other things, macroeconomic conditions, industry and market conditions, financial performance of the reporting unit and other relevant entity and reporting unit considerations. We concluded the estimated fair value of our reporting unit was greater than our carrying value of equity as of our testing date. Therefore, we concluded no impairment existed as of our annual assessment date in the fourth quarter of 2024.

2023 Goodwill Impairment Analyses

At October 31, 2023, we performed our annual impairment analysis of the goodwill of our three above-mentioned reporting units. Given the continued erosion in our market capitalization, we determined our quantitative impairment analysis would estimate the fair value of our reporting units using only the market approach. Applying this approach, we utilized company comparisons and analyst reports within the telecommunications industry which supported a range of fair values derived from annualized revenue and earnings before interest, tax, depreciation and amortization ("EBITDA") multiples between 1.5x and 3.5x and 4.8x and 8.4x, respectively. In determining the fair value of each reporting unit, we used revenue and EBITDA multiples below these comparable market multiples. We reconciled the estimated fair values of the reporting units to our market capitalization as of October 31, 2023 and concluded that the indicated control premium of approximately 2% was reasonable based on recent market transactions. Based on our assessments performed with respect to the reporting units as described above, we concluded the estimated fair value of certain of our reporting units was less than their carrying value of equity. As a result, we recorded a non-cash, non-tax-deductible goodwill impairment charge of $1.9 billion on October 31, 2023.

During the second quarter of 2023, we determined circumstances existed indicating it was more likely than not that the carrying value of our reporting units exceed their fair value. Given the continued erosion in our market capitalization, we determined our quantitative impairment analysis would estimate the fair value of our reporting units using only the market approach. Applying this approach, we utilized company comparisons and analyst reports within the telecommunications industry which supported a range of fair values derived from annualized revenue and EBITDA multiples between 1.5x and 4.3x and 4.6x and 10.5x, respectively. In determining the fair value of each reporting unit, we used revenue and EBITDA multiples below these comparable market multiples. The estimated fair values of the reporting units determined in connection with our impairment analysis in the second quarter of 2023 resulted in no control premium, which we determined to be reasonable based on our market capitalization relative to recent transactions. For the three months ended June 30, 2023, based on our assessments performed with respect to the reporting units as described above, we concluded the estimated fair value of certain of our reporting units was less than their carrying value of equity. As a result, we recorded a non-cash, non-tax-deductible goodwill impairment charge of $8.8 billion for the three months ended June 30, 2023.
The market approach that we used in the June 30, 2023 and October 31, 2023 tests incorporated estimates and assumptions related to the forecasted results for the remainder of the year, including revenues, expenses, and the achievement of certain strategic initiatives. In developing the market multiples applicable to each reporting unit, we considered observed trends of our industry participants. Our assessment included many factors that required significant judgment. Alternative interpretations of these factors could have resulted in different conclusions regarding the size of our impairments.

2022 Goodwill Impairment Analyses

As of October 31, 2022, we estimated the fair value of our four above-mentioned reporting units by considering both a market approach and a discounted cash flow method. We discounted the projected cash flows for our Mass Markets, NA Business, EMEA and APAC reporting units using a rate that represented their weighted average cost of capital as of the assessment date, which comprised an after-tax cost of debt and a cost of equity, as disclosed in the table below. We utilized company comparisons and analyst reports within the telecommunications industry which at the time of assessment supported a range of fair values derived from annualized revenue and EBITDA multiples between 1.8x and 4.6x and 4.7x and 10.8x, respectively. We selected a revenue and EBITDA multiple for each of our reporting units, resulting in an overall company revenue and EBITDA multiple of 2.5x and 5.5x, respectively. We also reconciled the estimated fair values of the reporting units to our market capitalization as of October 31, 2022 and concluded that the indicated control premium of approximately 59% was reasonable based on recent market transactions, including our divestitures, and our depressed stock price. Due to the depressed trading price of our stock at October 31, 2022, and our assessment performed with respect to the reporting units described above, we concluded that the estimated fair value of our NA Business reporting unit was less than our carrying value of equity for that reporting unit, resulting in a non-cash, non-tax-deductible goodwill impairment charge of approximately $3.2 billion. See the goodwill rollforward by segment table below for the impairment charges by segment. As of October 31, 2022, the estimated fair value of equity exceeded the carrying value of equity for our Mass Markets, EMEA and APAC reporting units by 97%, 171% and 101%, respectively. Based on our assessments performed, we concluded that the goodwill assigned to our Mass Markets, EMEA and APAC reporting units was not impaired at October 31, 2022.

As of October 31, 2022
Reporting Units
Mass MarketsNA BusinessEMEAAPAC
Weighted average cost of capital9.4 %9.4 %9.8 %11.3 %
After-tax cost of debt4.7 %4.7 %5.1 %6.3 %
Cost of equity14.0 %14.0 %14.4 %16.2 %

Our classification of the EMEA Business as being held for sale as described in Note 2—Divestitures of the Latin American, ILEC and EMEA Businesses was considered an event or change in circumstance which required an assessment of our goodwill for impairment as of October 31, 2022. We performed a pre-announcement goodwill impairment test described above to determine whether there was an impairment prior to the classification of these assets as held for sale and to determine the November 2, 2022, fair values to be utilized for goodwill allocation regarding the disposal group to be classified as assets held for sale. We also performed a post-announcement goodwill impairment test using our estimated post-divestiture cash flows and carrying value of equity to evaluate whether the fair value of our NA Business, Mass Markets and APAC reporting units that will remain following the divestiture exceeds the carrying value of the equity of such reporting units after classification of assets held for sale. We concluded no impairment existed regarding our post-divestiture reporting units.

Separate from the annual, pre-announcement and post-announcement goodwill assessments discussed above, we performed an assessment of our EMEA business disposal group for impairment using the purchase price compared to the carrying value of the EMEA business net assets. As a result, the EMEA business disposal group was impaired, resulting in a non-cash, non-tax-deductible goodwill impairment charge of $43 million. See Note 2—Divestitures of the Latin American, ILEC and EMEA Businesses for additional information regarding the purchase price, carrying value, and impairment for goodwill of the EMEA business. See the goodwill rollforward by segment table below for the impairment charges by segment.
The following table shows the rollforward of goodwill assigned to our reportable segments from December 31, 2022 through December 31, 2024.

 BusinessMass MarketsTotal
 (Dollars in millions)
As of December 31, 2022(1)
$7,906 4,751 12,657 
Impairment(7,906)(2,787)(10,693)
As of December 31, 2023(1)
— 1,964 1,964 
As of December 31, 2024(1)
$— 1,964 1,964 
______________________________________________________________________
(1)Goodwill at December 31, 2024, December 31, 2023 and December 31, 2022 is net of accumulated impairment losses of $21.7 billion, $21.7 billion and $11.0 billion, respectively.

For additional information on our segments, see Note 17—Segment Information.

As of December 31, 2024, the weighted average remaining useful lives of our finite-lived intangible assets were approximately five years in total, approximately six years for customer relationships and four years for capitalized software.

Total amortization expense for finite-lived intangible assets for each of the years ended December 31, 2024, 2023 and 2022 was $1.1 billion.

We estimate that future total amortization expense for finite-lived intangible assets will be as follows:

 (Dollars in millions)
2025$926 
2026875 
2027788 
2028717 
2029488 
2030 and thereafter1,003 
Total finite-lived intangible assets future amortization expense$4,797 
v3.25.0.1
Revenue Recognition
12 Months Ended
Dec. 31, 2024
Revenue from Contract with Customer [Abstract]  
Revenue Recognition
Note 4—Revenue Recognition

Product and Service Categories

We categorize our products and services revenue among the following categories for the Business segment:

Grow, which includes existing and emerging products and services in which we are significantly investing, including our dark fiber and conduit, Edge Cloud, IP, managed security, software-defined wide area networks ("SD WAN"), Unified Communications and Collaboration ("UC&C") and wavelengths services;

Nurture, which includes our more mature offerings, including ethernet and VPN data networks services;

Harvest, which includes our legacy services managed for cash flow, including Time Division Multiplexing voice, and private line services; and

Other, which includes equipment sales, managed and professional service solutions and other services.
We categorize our products and services revenue among the following categories for the Mass Markets segment:

Fiber Broadband, under which we provide high speed broadband services to residential and small business customers utilizing our fiber-based network infrastructure;

Other Broadband, under which we provide primarily lower speed broadband services to residential and small business customers utilizing our copper-based network infrastructure; and

Voice and Other, under which we derive revenues from (i) providing local and long-distance voice services, professional services, and other ancillary services, and (ii) federal broadband and state support programs.

Reconciliation of Total Revenue to Revenue from Contracts with Customers

The following tables provide total revenue by segment, sales channel and product category. They also provide the amount of revenue that is not subject to ASC 606, "Revenue from Contracts with Customers" ("ASC 606"), but is instead governed by other accounting standards. The amounts in the tables below include revenue for the Latin American, ILEC and EMEA businesses prior to their sales on August 1, 2022, October 3, 2022 and November 1, 2023, respectively:

Year Ended December 31, 2024
Total Revenue
Adjustments for Non-ASC 606 Revenue (1)
Total Revenue from Contracts with Customers
 (Dollars in millions)
Business Segment by Sales Channel and Product Category
Large Enterprise
Grow$1,733 (256)1,477 
Nurture1,015 — 1,015 
Harvest441 — 441 
Other190 (1)189 
Total Large Enterprise Revenue3,379 (257)3,122 
Mid-Market Enterprise
Grow841 (25)816 
Nurture690 — 690 
Harvest320 (4)316 
Other36 (5)31 
Total Mid-Market Enterprise Revenue1,887 (34)1,853 
Public Sector
Grow596 (85)511 
Nurture355 — 355 
Harvest389 (4)385 
Other509 — 509 
Total Public Sector Revenue1,849 (89)1,760 
Wholesale
Grow1,048 (287)761 
Nurture740 (19)721 
Harvest1,079 (140)939 
Other— 
Total Wholesale Revenue2,875 (446)2,429 
International and Other
Grow155 (4)151 
Nurture161 — 161 
Harvest42 — 42 
Other15 — 15 
Total International and Other373 (4)369 
Business Segment by Product Category
Grow4,373 (657)3,716 
Nurture2,961 (19)2,942 
Harvest2,271 (148)2,123 
Other758 (6)752 
Total Business Segment Revenue10,363 (830)9,533 
Mass Markets Segment by Product Category
Fiber Broadband736 (13)723 
Other Broadband1,167 (105)1,062 
Voice and Other842 (31)811 
Total Mass Markets Revenue2,745 (149)2,596 
Total Revenue$13,108 (979)12,129 
Timing of revenue
Goods and services transferred at a point in time$136 
Services performed over time11,993 
Total revenue from contracts with customers$12,129 

Year Ended December 31, 2023
Total Revenue
Adjustments for Non-ASC 606 Revenue (1)
Total Revenue from Contracts with Customers
 (Dollars in millions)
Business Segment by Sales Channel and Product Category
Large Enterprise
Grow$1,709 (179)1,530 
Nurture1,172 — 1,172 
Harvest537 — 537 
Other200 (5)195 
Total Large Enterprise Revenue3,618 (184)3,434 
Mid-Market Enterprise
Grow807 (28)779 
Nurture829 — 829 
Harvest372 (4)368 
Other36 (4)32 
Total Mid-Market Enterprise Revenue2,044 (36)2,008 
Public Sector
Grow473 (81)392 
Nurture399 — 399 
Harvest383 (1)382 
Other534 — 534 
Total Public Sector Revenue1,789 (82)1,707 
Wholesale
Grow1,052 (251)801 
Nurture827 (25)802 
Harvest1,261 (165)1,096 
Other12 — 12 
Total Wholesale Revenue3,152 (441)2,711 
International and Other
Grow453 (115)338 
Nurture266 — 266 
Harvest126 — 126 
Other135 — 135 
Total International and Other980 (115)865 
Business Segment by Product Category
Grow4,494 (654)3,840 
Nurture3,493 (25)3,468 
Harvest2,679 (170)2,509 
Other917 (9)908 
Total Business Segment Revenue11,583 (858)10,725 
Mass Markets Segment by Product Category
Fiber Broadband637 (16)621 
Other Broadband1,395 (126)1,269 
Voice and Other942 (36)906 
Total Mass Markets Revenue2,974 (178)2,796 
Total Revenue$14,557 (1,036)13,521 
Timing of revenue
Goods and services transferred at a point in time$178 
Services performed over time13,343 
Total revenue from contracts with customers$13,521 

Year Ended December 31, 2022
Total Revenue
Adjustments for Non-ASC 606 Revenue (1)
Total Revenue from Contracts with Customers

(Dollars in millions)
Business Segment by Sales Channel and Product Category
Large Enterprise
Grow$1,653 (199)1,454 
Nurture1,274 — 1,274 
Harvest690 (2)688 
Other210 (7)203 
Total Large Enterprise Revenue3,827 (208)3,619 
Mid-Market Enterprise
Grow768 (32)736 
Nurture949 — 949 
Harvest494 (6)488 
Other31 (2)29 
Total Mid-Market Enterprise Revenue2,242 (40)2,202 
Public Sector
Grow445 (79)366 
Nurture492 — 492 
Harvest466 (3)463 
Other460 (2)458 
Total Public Sector Revenue1,863 (84)1,779 
Wholesale
Grow991 (271)720 
Nurture1,012 (23)989 
Harvest1,551 (215)1,336 
Other51 — 51 
Total Wholesale Revenue3,605 (509)3,096 
International and Other
Grow761 (176)585 
Nurture401 — 401 
Harvest210 — 210 
Other190 — 190 
Total International and Other1,562 (176)1,386 
Business Segment by Product Category
Grow4,618 (757)3,861 
Nurture4,128 (23)4,105 
Harvest3,411 (226)3,185 
Other942 (11)931 
Total Business Segment Revenue13,099 (1,017)12,082 
Mass Markets Segment by Product Category
Fiber Broadband604 (18)586 
Other Broadband2,163 (200)1,963 
Voice and Other1,612 (135)1,477 
Total Mass Markets Revenue4,379 (353)4,026 
Total Revenue$17,478 (1,370)16,108 
Timing of revenue
Goods and services transferred at a point in time$154 
Services performed over time15,954 
Total revenue from contracts with customers$16,108 
______________________________________________________________________
(1)Includes regulatory revenue and lease revenue not within the scope of ASC 606.

Customer Receivables and Contract Balances

The following table provides balances of customer receivables, contract assets and contract liabilities, net of amounts classified as held for sale:
As of December 31,
2024
2023
 (Dollars in millions)
Customer receivables, less allowance of $50 and $60
$1,193 1,256 
Contract assets
19 29 
Contract liabilities
733 698 

Contract liabilities are consideration we have received from our customers or billed in advance of providing goods or services promised in the future. We defer recognizing this consideration as revenue until we have satisfied the related performance obligation to the customer. Contract liabilities include recurring services billed one month in advance and installation and maintenance charges that are deferred and recognized over the actual or expected contract term, which typically ranges from one to five years depending on the service. Contract liabilities are included within Deferred revenue on our consolidated balance sheets. During the years ended December 31, 2024 and December 31, 2023, we recognized $443 million and $434 million, respectively, of revenue that was included in contract liabilities of $698 million and $715 million as of January 1, 2024 and 2023, respectively, including contract liabilities that were classified as held for sale.
Performance Obligations

As of December 31, 2024, we expect to recognize approximately $6.4 billion of revenue in the future related to performance obligations associated with existing customer contracts that are partially or wholly unsatisfied. As of December 31, 2024, the transaction price related to unsatisfied performance obligation that are expected to be recognized in 2025, 2026 and thereafter was $2.9 billion, $1.7 billion and $1.8 billion, respectively.

These amounts exclude (i) the value of unsatisfied performance obligations for contracts for which we recognize revenue at the amount to which we have the right to invoice for services performed (for example, uncommitted usage or non-recurring charges associated with professional or technical services to be completed) and (ii) contracts that are classified as leasing arrangements or government assistance that are not subject to ASC 606.

Contract Costs

The following tables provide changes in our contract acquisition costs and fulfillment costs:
Year Ended December 31, 2024
Acquisition CostsFulfillment Costs
 (Dollars in millions)
Beginning of period balance$182 184 
Costs incurred151 176 
Amortization(130)(138)
End of period balance$203 222 

Year Ended December 31, 2023
Acquisition CostsFulfillment Costs
 (Dollars in millions)
Beginning of period balance$202 192 
Costs incurred136 157 
Amortization(152)(140)
Classified as held for sale
(4)(25)
End of period balance$182 184 

Acquisition costs include commission fees paid to employees as a result of obtaining contracts. Fulfillment costs include third party and internal costs associated with the provision, installation and activation of services to customers, including labor and materials consumed for these activities.

We amortize deferred acquisition and fulfillment costs based on the transfer of services on a straight-line basis over the average contract life of approximately 50 months for Mass Markets customers and 35 months for Business customers. We include amortized fulfillment costs in Cost of services and products and amortized acquisition costs in Selling, general and administrative in our consolidated statements of operations. We include the amount of these deferred costs that are anticipated to be amortized in the next 12 months in Other under Current Assets on our consolidated balance sheets. We include the amount of deferred costs expected to be amortized beyond the next 12 months in Other under Deferred Credits and Other Liabilities on our consolidated balance sheets. We assess deferred acquisition and fulfillment costs for impairment on a quarterly basis.
Governmental Funding

Lumen participates in various U.S. federal and state programs under which government support payments are received to offset costs associated with providing services in targeted locations such as unserved or underserved high-cost or rural areas, or for certain types of customers, including non-profit organizations, educational institutions and local governmental bodies. In certain instances, support payments are conditioned on specified infrastructure buildouts by milestone deadlines or provision of services at specified locations and speed requirements. Commitments may be made annually, on a multi-year basis ranging from one to 10 years or be on-going subject to periodic change or termination. Consistent with customary practice and as referenced in ASC 832 Government Assistance, Lumen applies a grant model of accounting by which it accounts for these transactions as non-ASC 606 revenue over the periods in which the costs for which the funding is intended to compensate are incurred. This non-ASC 606 revenue is included in operating revenue in our consolidated statements of operations. Corresponding receivables are recorded when services have been provided to the customers and costs incurred, but the cash has not been received. These amounts are included in our accounts receivable, less allowance in our consolidated balance sheets. Certain programs are subject to audits of compliance with program commitments and, subject to the outcomes of those assessments, Lumen may be required to reimburse the government entity for cash previously received, or, in some cases, pay a penalty. Lumen evaluates each program and establishes a liability under the principles of ASC 450 if it is probable support payments will be recaptured or a penalty will be imposed.

For the years ended December 31, 2024 and 2023, Lumen recorded non-customer revenue of $83 million and $85 million, respectively, under government assistance programs, of which 18% and 17%, respectively, was associated with state universal service fund support programs.

Between 2015 and 2021, we received approximately $500 million annually through the Federal Communications Commission (the "FCC")'s Connect America Fund II ("CAF II"), a federal multi-year recurring subsidy program for more extensive broadband deployment in price-cap ILEC territories. For this program, which ended on December 31, 2021, we were required to meet certain specified infrastructure buildout requirements in 33 states by the end of 2021, which required substantial capital expenditures. In the first quarter of 2022, we recognized $59 million of previously deferred revenue related to the conclusion of the CAF II program based upon our final buildout and filing submissions. The government has the right to audit our compliance with the CAF II program and the ultimate outcome of any remaining examinations is unknown, but could result in a liability to us in excess of our accruals established for these matters.

In early 2020, the FCC created the Rural Digital Opportunity Fund (the “RDOF”) program, a federal support program designed to fund broadband deployment in rural America. For the first phase of this program, RDOF Phase I, the FCC ultimately awarded $6.4 billion support payments to be paid in equal monthly installments over 10 years. We were awarded RDOF funding in several of the states in which we operate and began receiving monthly support payments during the second quarter of 2022. We received approximately $17 million in annual RDOF Phase I support payments for the years ended December 31, 2023 and 2022. In the third quarter of 2024, we relinquished rights to develop certain RDOF census blocks in four states, which resulted in (i) a reduction of the anticipated RDOF Phase I support payments to approximately $16 million for the year ending December 31, 2024 and $15 million each year thereafter through the program period and (ii) an expectation of payment to the federal government, which we anticipate will be approximately $10 million.

Lumen participates in multiple state sponsored programs for broadband deployment in unserved and underserved areas for which the states have state universal service funds sourced from fees levied on telecommunications providers and passed on to consumers. During the years ending December 31, 2024 and 2023, Lumen participated in these types of programs primarily in the states of Nebraska, New Mexico and Minnesota.
v3.25.0.1
Leases
12 Months Ended
Dec. 31, 2024
Leases [Abstract]  
Leases
Note 5—Leases

We primarily lease various office facilities, colocation facilities, equipment and transmission capacity to or from third parties. Leases with an initial term of 12 months or less are not recorded on our consolidated balance sheets; we recognize lease expense for these leases on a straight-line basis over the lease term.
We determine if an arrangement is a lease at inception and whether that lease meets the classification criteria of a finance or operating lease at the commencement date. Lease-related assets, or right-of-use assets, are recognized at the lease commencement date at amounts equal to the respective lease liabilities. Lease-related liabilities are recognized at the present value of the remaining contractual fixed lease payments, discounted using our incremental borrowing rates. As part of the present value calculation for the lease liabilities, we use an incremental borrowing rate as the rates implicit in the leases are not readily determinable. The incremental borrowing rates used for lease accounting are based on our unsecured rates, adjusted to approximate the rates at which we could borrow on a collateralized basis over a term similar to the recognized lease term. We apply the incremental borrowing rates to lease components using a portfolio approach based upon the length of the lease term and the reporting entity in which the lease resides. Operating lease expense is recognized on a straight-line basis over the lease term, while variable lease payments are expensed as incurred. Operating lease assets are included in other, net under goodwill and other assets on our consolidated balance sheets. Noncurrent operating lease liabilities are included in other under deferred credits and other liabilities on our consolidated balance sheets.

Some of our lease arrangements contain lease components, non-lease components (including common-area maintenance costs) and executory costs (including real estate taxes and insurance costs). We generally account for each component separately based on the estimated standalone price of each component. For colocation leases, we account for the lease and non-lease components as a single lease component.

Many of our lease agreements contain renewal options; however, we do not recognize right-of-use assets or lease liabilities for renewal periods unless we determine that we are reasonably certain of renewing the lease. Certain leases also include options to purchase the leased property. The depreciable life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain to be exercised. Our lease agreements do not generally contain any material residual value guarantees or material restrictive covenants.

Lease expense consisted of the following:

Years Ended December 31,
202420232022
(Dollars in millions)
Operating and short-term lease cost$446 459 451 
Finance lease cost:
Amortization of right-of-use assets25 32 37 
Interest on lease liability11 12 15 
Total finance lease cost36 44 52 
Total lease cost$482 503 503 

We lease various equipment, office facilities, retail outlets, switching facilities and other network sites or components from third parties. These leases, with few exceptions, provide for renewal options and rent escalations that are either fixed or based on the consumer price index. Any rent abatements, along with rent escalations, are included in the computation of rent expense calculated on a straight-line basis over the lease term. The lease term for most leases includes the initial non-cancelable term plus any term under renewal options that we believe are reasonably assured.

On a regular basis, we rationalize our lease footprint. When we determine that we no longer need leased space, we may incur accelerated lease costs. Our accelerated lease costs in December 31, 2024, 2023 and 2022 were not material.

For the years ended December 31, 2024, 2023 and 2022, our gross rental expense, including the accelerated lease costs discussed above, was $482 million, $503 million and $503 million, respectively. We also received sublease rental income of $25 million for each of the years ended December 31, 2024, 2023 and 2022.
Supplemental consolidated balance sheet information and other information related to leases is included below:
As of December 31,
Leases (Dollars in millions)Classification on the Balance Sheet20242023
Assets
Operating lease assetsOther, net$1,119 1,230 
Finance lease assetsProperty, plant and equipment, net of accumulated depreciation236 260 
Total leased assets$1,355 1,490 
Liabilities
Current
OperatingCurrent operating lease liabilities$253 268 
FinanceCurrent maturities of long-term debt17 16 
Noncurrent
OperatingOther959 1,040 
FinanceLong-term debt198 215 
Total lease liabilities$1,427 1,539 
Weighted-average remaining lease term (years)
Operating leases7.78.2
Finance leases11.411.3
Weighted-average discount rate
Operating leases8.90 %7.59 %
Finance leases4.40 %4.98 %

Supplemental consolidated cash flow statement information related to leases is included below:
Years Ended December 31,
20242023
(Dollars in millions)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases$427 461 
Operating cash flows for finance leases11 12 
Financing cash flows for finance leases17 25 
Supplemental lease cash flow disclosures:
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities$191 143 
Right-of-use assets obtained in exchange for new finance lease liabilities10 
As of December 31, 2024, maturities of lease liabilities were as follows:
 Operating LeasesFinance Leases
 (Dollars in millions)
2025$340 27 
2026252 28 
2027204 28 
2028167 28 
2029131 26 
Thereafter592 140 
Total lease payments1,686 277 
Less: interest(474)(62)
Total1,212 215 
Less: current portion(253)(17)
Long-term portion$959 198 

As of December 31, 2024, we had no material operating or finance leases that had not yet commenced.

Operating Lease Revenue

We lease various dark fiber and conduit, office facilities, colocation facilities, switching facilities, other network sites and service equipment to third parties under operating leases. Lease and sublease income are included in operating revenue in the consolidated statements of operations. See "Revenue Recognition" in Note 1—Background and Summary of Significant Accounting Policies.

For the years ended December 31, 2024, 2023 and 2022, our gross rental income was approximately $1.0 billion, $1.0 billion and $1.2 billion, respectively, which represents 7% of our operating revenue for each of the years ended December 31, 2024, 2023 and 2022.
Leases
Note 5—Leases

We primarily lease various office facilities, colocation facilities, equipment and transmission capacity to or from third parties. Leases with an initial term of 12 months or less are not recorded on our consolidated balance sheets; we recognize lease expense for these leases on a straight-line basis over the lease term.
We determine if an arrangement is a lease at inception and whether that lease meets the classification criteria of a finance or operating lease at the commencement date. Lease-related assets, or right-of-use assets, are recognized at the lease commencement date at amounts equal to the respective lease liabilities. Lease-related liabilities are recognized at the present value of the remaining contractual fixed lease payments, discounted using our incremental borrowing rates. As part of the present value calculation for the lease liabilities, we use an incremental borrowing rate as the rates implicit in the leases are not readily determinable. The incremental borrowing rates used for lease accounting are based on our unsecured rates, adjusted to approximate the rates at which we could borrow on a collateralized basis over a term similar to the recognized lease term. We apply the incremental borrowing rates to lease components using a portfolio approach based upon the length of the lease term and the reporting entity in which the lease resides. Operating lease expense is recognized on a straight-line basis over the lease term, while variable lease payments are expensed as incurred. Operating lease assets are included in other, net under goodwill and other assets on our consolidated balance sheets. Noncurrent operating lease liabilities are included in other under deferred credits and other liabilities on our consolidated balance sheets.

Some of our lease arrangements contain lease components, non-lease components (including common-area maintenance costs) and executory costs (including real estate taxes and insurance costs). We generally account for each component separately based on the estimated standalone price of each component. For colocation leases, we account for the lease and non-lease components as a single lease component.

Many of our lease agreements contain renewal options; however, we do not recognize right-of-use assets or lease liabilities for renewal periods unless we determine that we are reasonably certain of renewing the lease. Certain leases also include options to purchase the leased property. The depreciable life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain to be exercised. Our lease agreements do not generally contain any material residual value guarantees or material restrictive covenants.

Lease expense consisted of the following:

Years Ended December 31,
202420232022
(Dollars in millions)
Operating and short-term lease cost$446 459 451 
Finance lease cost:
Amortization of right-of-use assets25 32 37 
Interest on lease liability11 12 15 
Total finance lease cost36 44 52 
Total lease cost$482 503 503 

We lease various equipment, office facilities, retail outlets, switching facilities and other network sites or components from third parties. These leases, with few exceptions, provide for renewal options and rent escalations that are either fixed or based on the consumer price index. Any rent abatements, along with rent escalations, are included in the computation of rent expense calculated on a straight-line basis over the lease term. The lease term for most leases includes the initial non-cancelable term plus any term under renewal options that we believe are reasonably assured.

On a regular basis, we rationalize our lease footprint. When we determine that we no longer need leased space, we may incur accelerated lease costs. Our accelerated lease costs in December 31, 2024, 2023 and 2022 were not material.

For the years ended December 31, 2024, 2023 and 2022, our gross rental expense, including the accelerated lease costs discussed above, was $482 million, $503 million and $503 million, respectively. We also received sublease rental income of $25 million for each of the years ended December 31, 2024, 2023 and 2022.
Supplemental consolidated balance sheet information and other information related to leases is included below:
As of December 31,
Leases (Dollars in millions)Classification on the Balance Sheet20242023
Assets
Operating lease assetsOther, net$1,119 1,230 
Finance lease assetsProperty, plant and equipment, net of accumulated depreciation236 260 
Total leased assets$1,355 1,490 
Liabilities
Current
OperatingCurrent operating lease liabilities$253 268 
FinanceCurrent maturities of long-term debt17 16 
Noncurrent
OperatingOther959 1,040 
FinanceLong-term debt198 215 
Total lease liabilities$1,427 1,539 
Weighted-average remaining lease term (years)
Operating leases7.78.2
Finance leases11.411.3
Weighted-average discount rate
Operating leases8.90 %7.59 %
Finance leases4.40 %4.98 %

Supplemental consolidated cash flow statement information related to leases is included below:
Years Ended December 31,
20242023
(Dollars in millions)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases$427 461 
Operating cash flows for finance leases11 12 
Financing cash flows for finance leases17 25 
Supplemental lease cash flow disclosures:
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities$191 143 
Right-of-use assets obtained in exchange for new finance lease liabilities10 
As of December 31, 2024, maturities of lease liabilities were as follows:
 Operating LeasesFinance Leases
 (Dollars in millions)
2025$340 27 
2026252 28 
2027204 28 
2028167 28 
2029131 26 
Thereafter592 140 
Total lease payments1,686 277 
Less: interest(474)(62)
Total1,212 215 
Less: current portion(253)(17)
Long-term portion$959 198 

As of December 31, 2024, we had no material operating or finance leases that had not yet commenced.

Operating Lease Revenue

We lease various dark fiber and conduit, office facilities, colocation facilities, switching facilities, other network sites and service equipment to third parties under operating leases. Lease and sublease income are included in operating revenue in the consolidated statements of operations. See "Revenue Recognition" in Note 1—Background and Summary of Significant Accounting Policies.

For the years ended December 31, 2024, 2023 and 2022, our gross rental income was approximately $1.0 billion, $1.0 billion and $1.2 billion, respectively, which represents 7% of our operating revenue for each of the years ended December 31, 2024, 2023 and 2022.
Leases
Note 5—Leases

We primarily lease various office facilities, colocation facilities, equipment and transmission capacity to or from third parties. Leases with an initial term of 12 months or less are not recorded on our consolidated balance sheets; we recognize lease expense for these leases on a straight-line basis over the lease term.
We determine if an arrangement is a lease at inception and whether that lease meets the classification criteria of a finance or operating lease at the commencement date. Lease-related assets, or right-of-use assets, are recognized at the lease commencement date at amounts equal to the respective lease liabilities. Lease-related liabilities are recognized at the present value of the remaining contractual fixed lease payments, discounted using our incremental borrowing rates. As part of the present value calculation for the lease liabilities, we use an incremental borrowing rate as the rates implicit in the leases are not readily determinable. The incremental borrowing rates used for lease accounting are based on our unsecured rates, adjusted to approximate the rates at which we could borrow on a collateralized basis over a term similar to the recognized lease term. We apply the incremental borrowing rates to lease components using a portfolio approach based upon the length of the lease term and the reporting entity in which the lease resides. Operating lease expense is recognized on a straight-line basis over the lease term, while variable lease payments are expensed as incurred. Operating lease assets are included in other, net under goodwill and other assets on our consolidated balance sheets. Noncurrent operating lease liabilities are included in other under deferred credits and other liabilities on our consolidated balance sheets.

Some of our lease arrangements contain lease components, non-lease components (including common-area maintenance costs) and executory costs (including real estate taxes and insurance costs). We generally account for each component separately based on the estimated standalone price of each component. For colocation leases, we account for the lease and non-lease components as a single lease component.

Many of our lease agreements contain renewal options; however, we do not recognize right-of-use assets or lease liabilities for renewal periods unless we determine that we are reasonably certain of renewing the lease. Certain leases also include options to purchase the leased property. The depreciable life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain to be exercised. Our lease agreements do not generally contain any material residual value guarantees or material restrictive covenants.

Lease expense consisted of the following:

Years Ended December 31,
202420232022
(Dollars in millions)
Operating and short-term lease cost$446 459 451 
Finance lease cost:
Amortization of right-of-use assets25 32 37 
Interest on lease liability11 12 15 
Total finance lease cost36 44 52 
Total lease cost$482 503 503 

We lease various equipment, office facilities, retail outlets, switching facilities and other network sites or components from third parties. These leases, with few exceptions, provide for renewal options and rent escalations that are either fixed or based on the consumer price index. Any rent abatements, along with rent escalations, are included in the computation of rent expense calculated on a straight-line basis over the lease term. The lease term for most leases includes the initial non-cancelable term plus any term under renewal options that we believe are reasonably assured.

On a regular basis, we rationalize our lease footprint. When we determine that we no longer need leased space, we may incur accelerated lease costs. Our accelerated lease costs in December 31, 2024, 2023 and 2022 were not material.

For the years ended December 31, 2024, 2023 and 2022, our gross rental expense, including the accelerated lease costs discussed above, was $482 million, $503 million and $503 million, respectively. We also received sublease rental income of $25 million for each of the years ended December 31, 2024, 2023 and 2022.
Supplemental consolidated balance sheet information and other information related to leases is included below:
As of December 31,
Leases (Dollars in millions)Classification on the Balance Sheet20242023
Assets
Operating lease assetsOther, net$1,119 1,230 
Finance lease assetsProperty, plant and equipment, net of accumulated depreciation236 260 
Total leased assets$1,355 1,490 
Liabilities
Current
OperatingCurrent operating lease liabilities$253 268 
FinanceCurrent maturities of long-term debt17 16 
Noncurrent
OperatingOther959 1,040 
FinanceLong-term debt198 215 
Total lease liabilities$1,427 1,539 
Weighted-average remaining lease term (years)
Operating leases7.78.2
Finance leases11.411.3
Weighted-average discount rate
Operating leases8.90 %7.59 %
Finance leases4.40 %4.98 %

Supplemental consolidated cash flow statement information related to leases is included below:
Years Ended December 31,
20242023
(Dollars in millions)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases$427 461 
Operating cash flows for finance leases11 12 
Financing cash flows for finance leases17 25 
Supplemental lease cash flow disclosures:
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities$191 143 
Right-of-use assets obtained in exchange for new finance lease liabilities10 
As of December 31, 2024, maturities of lease liabilities were as follows:
 Operating LeasesFinance Leases
 (Dollars in millions)
2025$340 27 
2026252 28 
2027204 28 
2028167 28 
2029131 26 
Thereafter592 140 
Total lease payments1,686 277 
Less: interest(474)(62)
Total1,212 215 
Less: current portion(253)(17)
Long-term portion$959 198 

As of December 31, 2024, we had no material operating or finance leases that had not yet commenced.

Operating Lease Revenue

We lease various dark fiber and conduit, office facilities, colocation facilities, switching facilities, other network sites and service equipment to third parties under operating leases. Lease and sublease income are included in operating revenue in the consolidated statements of operations. See "Revenue Recognition" in Note 1—Background and Summary of Significant Accounting Policies.

For the years ended December 31, 2024, 2023 and 2022, our gross rental income was approximately $1.0 billion, $1.0 billion and $1.2 billion, respectively, which represents 7% of our operating revenue for each of the years ended December 31, 2024, 2023 and 2022.
v3.25.0.1
Credit Losses on Financial Instruments
12 Months Ended
Dec. 31, 2024
Credit Loss [Abstract]  
Credit Losses on Financial Instruments
Note 6—Credit Losses on Financial Instruments

To assess our expected credit losses on financial instruments, we aggregate financial assets with similar risk characteristics to monitor their credit quality or deterioration over the life of such assets. We periodically monitor certain risk characteristics within our aggregated financial assets and revise their composition accordingly, to the extent internal and external risk factors change. We separately evaluate financial assets that do not share risk characteristics with other financial assets. Our financial assets measured at amortized cost primarily consist of accounts receivable.

We use a loss rate method to estimate our allowance for credit losses. Our determination of the current expected credit loss rate begins with our review of historical loss experience as a percentage of accounts receivable. We measure our historical loss period based on the average days to recognize accounts receivable as credit losses. When asset specific characteristics and current conditions change from those in the historical period, due to changes in our credit and collections strategy, certain classes of aged balances, or credit loss and recovery policies, we perform a qualitative and quantitative assessment to adjust our historical loss rate. We use regression analysis to develop an expected loss rate using historical experience and economic data over a forecast period. We measure our forecast period based on the average days to collect payment on billed accounts receivable. To determine our current allowance for credit losses, we combine the historical and expected credit loss rates and apply them to our period end accounts receivable.

If there is an unexpected deterioration of a customer's financial condition or an unexpected change in economic conditions, including macroeconomic events, we assess the need to adjust the allowance for credit losses. Any such resulting adjustments would affect earnings in the period that adjustments are made.
The assessment of the correlation between historical observed default rates, current conditions and forecasted economic conditions requires judgment. Alternative interpretations of these factors could have resulted in different conclusions regarding our allowance for credit losses. The amount of credit loss is sensitive to changes in circumstances and forecasted economic conditions. Our historical credit loss experience, current conditions and forecast of economic conditions may also not be representative of the customers' actual default experience in the future, and we may use methodologies that differ from those used by other companies.

The following table presents the activity of our allowance for credit losses by accounts receivable portfolio:
BusinessMass MarketsTotal
(Dollars in millions)
Balance at December 31, 2021$88 26 114 
Provision for expected losses25 108 133 
Write-offs charged against the allowance(61)(114)(175)
Recoveries collected10 16 
Change in allowance in assets held for sale(1)
(5)(3)
Balance at December 31, 202257 28 85 
Provision for expected losses35 65 100 
Write-offs charged against the allowance(62)(65)(127)
Recoveries collected
Balance at December 31, 202336 31 67 
Provision for expected losses26 46 72 
Write-offs charged against the allowance(32)(58)(90)
Recoveries collected10 
Balance at December 31, 2024
$36 23 59 
______________________________________________________________________
(1)Represents changes in amounts classified as held for sale related to the divestitures of our Latin American and ILEC businesses on August 1, 2022 and October 3, 2022, respectively, and the inclusion of a $5 million allowance for credit losses classified as held for sale as of December 31, 2022 related to the divestiture of the EMEA business in 2023. See Note 2—Divestitures of the Latin American, ILEC and EMEA Businesses.
v3.25.0.1
Long-Term Debt and Credit Facilities
12 Months Ended
Dec. 31, 2024
Debt Disclosure [Abstract]  
Long-Term Debt and Credit Facilities
Note 7—Long-Term Debt and Credit Facilities

At December 31, 2024, most of our outstanding consolidated debt had been incurred by us or one of the following three subsidiaries, each of which has borrowed funds either on a standalone basis or as part of a separate restricted group with certain of its subsidiaries:

Level 3 Financing, Inc. ("Level 3 Financing"), including its parent guarantor Level 3 Parent, LLC, and certain subsidiary guarantors;

Qwest Corporation ("Qwest"); and

Qwest Capital Funding, Inc., including its parent guarantor, Qwest Communications International Inc.

Each of these borrowers or borrowing groups has entered into a credit agreement with certain financial institutions or other institutional lenders or issued senior notes. Certain of these debt instruments are described further below.
The following table reflects the consolidated long-term debt of Lumen Technologies, Inc. and its subsidiaries as of the dates indicated below, including unamortized premiums (discounts) and unamortized debt issuance costs:
   As of December 31,
 
Interest Rates(1)
Maturities(1)
20242023
   (Dollars in millions)
Senior Secured Debt: (2)
Lumen Technologies, Inc.    
Series A Revolving Credit Facility
SOFR + 4.00%
2028$— — 
Series B Revolving Credit Facility
SOFR + 6.00%
2028— — 
Term Loan A(3)
SOFR + 6.00%
2028357 — 
Term Loan B-1(4)
SOFR + 2.35%
20291,606 — 
Term Loan B-2(4)
SOFR + 2.35%
20301,606 — 
Term Loan B(5)
SOFR + 2.25%
202756 3,891 
Other Facilities(6)
N/A
N/A
— 1,399 
Superpriority Notes
4.125% - 10.000%
2029 - 2032
1,247 — 
Former Parent Secured Notes(7)
N/A
N/A
— 1,250 
Subsidiaries:
Level 3 Financing, Inc.
Term Loan B-1(8)
SOFR + 6.56%
20291,199 — 
Term Loan B-2(8)
SOFR + 6.56%
20301,199 — 
Former Level 3 Facility(9)
SOFR + 1.75%
202712 2,411 
First Lien Notes(10)
10.500% - 11.000%
2029 - 2030
3,846 925 
Second Lien Notes
3.875% - 10.000%
2029 - 2032
2,579 — 
Former Level 3 Senior Notes(11)
N/A
N/A
— 1,500 
Unsecured Senior Notes and Other Debt:
Lumen Technologies, Inc.
Senior notes(12)
4.000% - 7.650%
2025 - 2042
1,428 2,143 
Subsidiaries:   
Level 3 Financing, Inc.
Senior notes(13)
3.400% - 4.625%
2027 - 2029
964 3,940 
Qwest Corporation
Senior notes
6.500% - 7.750%
2025 - 2057
1,973 1,986 
Former Term Loan(14)
N/A
N/A
— 215 
Qwest Capital Funding, Inc.
Senior notes
6.875% - 7.750%
2028 - 2031
192 192 
Finance lease and other obligations
VariousVarious254 285 
Unamortized discounts, net  (395)(4)
Unamortized debt issuance costs(217)(145)
Total long-term debt  17,906 19,988 
Less current maturities  (412)(157)
Long-term debt, excluding current maturities  $17,494 19,831 
_______________________________________________________________________________
N/A - Not applicable
(1)As of December 31, 2024. All references to "SOFR" refer to the Secured Overnight Financing Rate.
(2)As discussed further below in this Note, the debt listed under the caption “Senior Secured Debt” is either secured by assets of the issuer, guaranteed on a secured or unsecured basis by certain affiliates of the issuer, or both. As discussed further in footnotes 12 and 13 below, we reclassified in the table above certain notes that were guaranteed, secured, or both prior to the TSA Effective Date (as defined below) from “secured” to “unsecured” in light of amendments that released such security interests.
(3)Term Loan A had an interest rate of 10.573% as of December 31, 2024.
(4)Term Loan B-1 and B-2 each had an interest rate of 7.037% as of December 31, 2024.
(5)Term Loan B had an interest rate of 6.937% and 7.720% as of December 31, 2024 and December 31, 2023, respectively.
(6)Reflects revolving credit facility and term loan A and A-1 debt issued under the Former Parent Facilities (as defined below), which were due in 2025 and had interest rates of 7.464% and 7.470%, respectively, as of December 31, 2023.
(7)Former Parent Secured Notes were due in 2027 and had an interest rate of 4.000% as of December 31, 2023, prior to being cancelled on the TSA Effective Date (as defined below).
(8)The Level 3 Term Loan B-1 and B-2 each had an interest rate of 11.133% as of December 31, 2024.
(9)Reflects Level 3 Tranche B 2027 Term Loan issued under the Former Level 3 Facility (as defined below), which had an interest rate of 6.437% and 7.220% as of December 31, 2024 and December 31, 2023, respectively.
(10)Includes Level 3's 10.500% Senior Secured Notes due 2030 issued in early 2023, the terms of which have been amended to be consistent with Level 3's first lien notes issued on March 22, 2024.
(11)Former Level 3 Senior Notes were due in 2027 - 2029 and had an interest rates of 3.400% - 3.875% as of December 31, 2023, prior to being cancelled on the TSA Effective Date (as defined below).
(12)The total amount of these notes at December 31, 2024 includes the remaining aggregate principal amount due under the Former Parent Secured Notes, the terms of which were amended on March 22, 2024 to release the guarantees of such debt that could be released in accordance with their indentures and the security interests relating thereto.
(13)The total amount for these notes at December 31, 2024 includes the remaining aggregate principal amount due under the Former Level 3 Secured Notes, the terms of which were amended on March 22, 2024 to release the security interests relating thereto.
(14)The Qwest Corporation Term Loan was due in 2027 and had an interest rate of 7.970% as of December 31, 2023, prior to being cancelled on the TSA Effective Date (as defined below).

Long-Term Debt Maturities

Set forth below is the aggregate principal amount of our long-term debt as of December 31, 2024 (excluding unamortized discounts, net, and unamortized debt issuance costs) maturing during the following years.

 (Dollars in millions)
2025$412 
202696 
2027250 
2028738 
20297,203 
2030 and thereafter9,819 
Total long-term debt$18,518 

2024 Debt Transactions

Cash Tender Offers

Pursuant to cash tender offers that commenced on November 12, 2024 (the "Cash Tender Offers"), in November 2024 we reduced the aggregate principal amount of our consolidated indebtedness by approximately $393 million. In conjunction with the Cash Tender Offers, we recorded a gain of $33 million including an offset of immaterial third-party fees in our aggregate Net gain on early retirement of debt in Other income (expense), net in our consolidated statement of operations for the year ended December 31, 2024.
The following table sets forth the aggregate principal amount of each series of senior notes of Lumen and Level 3 Financing retired in exchange for cash in November 2024 in connection with the Cash Tender Offers:

Debt
Aggregate Principal Amount (in millions)
Lumen Technologies, Inc.
5.625% Senior Notes, Series X, due 2025
$33 
7.200% Senior Notes, Series D, due 2025
5.125% Senior Notes due 2026
4.000% Senior Secured Notes due 2027 (unsecured)
6.875% Debentures, Series G, due 2028
24 
Level 3 Financing, Inc.
3.400% Senior Secured Notes due 2027 (unsecured)
4.625% Senior Notes due 2027
48 
4.250% Senior Notes due 2028
275 
Total
$393 

Exchange Offers

Pursuant to exchange offers that commenced on September 3, 2024 (the "Exchange Offers"), on September 24, 2024:

Lumen Technologies issued approximately $438 million aggregate principal amount of its newly-issued 10.000% Secured Notes due 2032 (the "New Lumen Notes") and paid approximately $14 million cash (excluding accrued and unpaid interest payable with respect to the exchange) in exchange for approximately $491 million aggregate principal amount of four series of its outstanding senior unsecured notes, maturing between 2026 and 2029 (which were concurrently cancelled), and

Level 3 Financing issued approximately $350 million aggregate principal amount of its newly-issued 10.000% Second Lien Notes due 2032 in exchange for $357 million aggregate principal amount of two series of its outstanding senior unsecured notes maturing in 2027 (which were concurrently cancelled).

These transactions reduced the aggregate principal amount of Lumen's consolidated indebtedness by approximately $60 million.

The Company determined that the Exchange Offers constituted a debt modification consistent with ASC 470 and recorded no gain or loss. In conjunction with the Exchange Offers, we recorded $17 million of fees to Selling, general and administrative expense in our consolidated statements of operations for the year ended December 31, 2024.
The following table sets forth the aggregate principal amount of each series of senior unsecured notes of Lumen and Level 3 Financing exchanged and retired on September 24, 2024 in connection with the Exchange Offers:

Debt
Aggregate Principal Amount (in millions)
Lumen Technologies, Inc.
5.125% Senior Notes due 2026
$137 
4.000% Senior Secured Notes due 2027 (unsecured)
188 
6.875% Debentures, Series G, due 2028
80 
4.500% Senior Notes due 2029
86 
Level 3 Financing, Inc.
3.400% Senior Secured Notes due 2027 (unsecured)
77 
4.625% Senior Notes due 2027
280 
Total
$848 

Transaction Support Agreement Transactions

On March 22, 2024 (the "TSA Effective Date"), Lumen Technologies, Level 3 Financing, Qwest and a group of creditors holding a majority of our consolidated debt completed transactions contemplated under the amended and restated transaction support agreement ("TSA") that such parties entered into on January 22, 2024 (the "TSA Transactions"), including the termination, repayment or exchange of previous commitments and debt and the issuance of new term loan facilities, notes, and revolving credit facilities.

The following table sets forth the aggregate principal amount of each of Lumen's consolidated debt arrangements that were partially or fully paid in exchange for cash or newly-issued debt during the first quarter of 2024 in connection with the TSA Transactions:

Aggregate Principal Amount
(in millions)
Debt
Repaid
Exchanged
Lumen Technologies, Inc.
Term Loan A
$933 — 
Term Loan A-1
266 — 
Term Loan B
575 3,259 
5.125% Senior Notes due 2026
116 147 
4.000% Senior Notes due 2027
153 865 
Level 3 Financing, Inc.
Term Loan B
— 2,398 
3.400% Senior Notes due 2027
— 668 
3.875% Senior Notes due 2029
— 678 
4.625% Senior Notes due 2027
— 606 
4.250% Senior Notes due 2028
— 712 
3.625% Senior Notes due 2029
— 458 
3.750% Senior Notes due 2029
— 453 
Qwest Corporation
Term Loan B
215 — 
Total$2,258 10,244 
The following table sets forth the aggregate principal balance as of December 31, 2024 of the debt issued by Lumen or Level 3 Financing in connection with the TSA Transactions:

New Debt Issuances(1)
Aggregate Principal Amount as of December 31, 2024 (in millions)
Lumen Technologies, Inc.
Term Loan A(2)
$357 
Term Loan B-1(2)
1,606 
Term Loan B-2(2)
1,606 
4.125% Superpriority Notes due 2029-2030
808 
Level 3 Financing, Inc.
Term Loan B-1
1,199 
Term Loan B-2
1,199 
10.500% First Lien Notes due 2029
668 
11.000% First Lien Notes due 2029
1,575 
4.875% Second Lien Notes due 2029
606 
10.750% First Lien Notes due 2030
678 
4.500% Second Lien Notes due 2030
712 
3.875% Second Lien Notes due 2030
458 
4.000% Second Lien Notes due 2031
453 
Total
$11,925 
______________________________________________________________________ 
(1)Except for Lumen's Term Loan A and $1.375 billion of Level 3 Financing's 11.000% First Lien Notes due 2029, all of the new debt listed in this table was issued in the first quarter of 2024 in exchange for previously-issued debt of Lumen or Level 3 Financing in connection with the TSA Transactions.
(2)Reflects approximately $66 million of term loan installment payments and paydowns made between the TSA Effective Date and December 31, 2024.

In evaluating the terms of the TSA Transactions, we determined that for certain of our creditors the new debt instruments were substantially different than pre-existing debt and therefore constituted a non-cash extinguishment of old debt for Lumen Technologies and Level 3 Financing of $744 million and $2.6 billion and the establishment of new debt for which we recorded a $275 million gain on extinguishment in the first quarter of 2024. This new debt was recorded at fair value generating a reduction to debt of $492 million which was included in our aggregate Net gain on early retirement of debt of $348 million, recognized in Other income (expense), net in our consolidated statement of operations for the year ended December 31, 2024. The remaining creditors’ newly-issued debt was not substantially different under the terms of the TSA Transactions and was treated under modification accounting rules. In conjunction with the TSA Transactions, we paid $209 million in lender fees and $174 million in additional third-party costs. Of these amounts, we offset $157 million of lender fees against the gain on extinguishment and recorded $112 million in third-party costs to Selling, general and administrative expense in our consolidated statement of operations for the year ended December 31, 2024. In accordance with GAAP provisions for modification and extinguishment accounting, $52 million in lender fees and $62 million in third-party costs, respectively, were capitalized and will be amortized over the terms of the newly-issued indebtedness.
Repurchases of Debt Instruments

During 2024, we repurchased various debt instruments on the open market. These repurchases resulted in an aggregate net gain of $40 million which is included in our aggregate Net gain on early retirement of debt in Other income (expense), net in our consolidated statement of operations for the year ended December 31, 2024. The following table sets forth the aggregate principal amount of each series of notes and term loans repurchased during the year ended December 31, 2024:

Debt
 Principal Amount Repurchased
(in millions)
Lumen Technologies, Inc.
Term Loan A
$
Term Loan B-1
Term Loan B-2
5.625% Senior Notes, Series X, due 2025
70 
7.200% Senior Notes, Series D, due 2025
13 
6.875% Senior Notes, Series G, due 2028
4.500% Senior Notes due 2029
24 
4.125% Superpriority Notes due 2029-2030
7.600% Senior Notes due 2039
7.650% Senior Notes due 2042
Level 3 Financing, Inc.
4.250% Senior Notes due 2028
34 
3.625% Senior Notes due 2029
81 
3.750% Sustainability-Linked Senior Notes due 2029
86 
3.875% Senior Secured Notes due 2029 (unsecured)
18 
Qwest Corporation
7.250% Senior Notes due 2025
13 
Total$376 

2023 Debt Modification Transactions

Exchange Offers

Pursuant to exchange offers that commenced on March 16, 2023 (the “2023 Exchange Offers”), on March 31, 2023, Level 3 Financing issued $915 million of its 10.500% Senior Secured Notes due 2030 (the “10.500% Notes”) in exchange for $1.535 billion of Lumen’s outstanding senior unsecured notes. On April 17, 2023, in connection with the Exchange Offers, Level 3 Financing issued an additional $9 million of its 10.500% Notes in exchange for $19 million of Lumen's outstanding senior unsecured notes. All exchanged notes were concurrently cancelled. These transactions resulted in a $630 million net reduction in the aggregate principal amount of Lumen’s consolidated indebtedness. In addition to the above-described exchange offers, we repurchased $24 million aggregate principal amount of Lumen's outstanding senior unsecured notes during the first quarter of 2023. These above-described transactions resulted in an aggregate net gain of $618 million for the year ended December 31, 2023.
The following table sets forth the aggregate principal amount of each series of Lumen’s senior unsecured notes retired during the year ended December 31, 2023, in connection with the above-described exchange transactions:

Debt
Aggregate principal (amounts in millions)
5.625% Senior Notes, Series X, due 2025
$49 
7.200% Senior Notes, Series D, due 2025
21 
5.125% Senior Notes due 2026
291 
6.875% Debentures, Series G, due 2028
52 
5.375% Senior Notes due 2029
275 
4.500% Senior Notes due 2029
558 
7.600% Senior Notes, Series P, due 2039
164 
7.650% Senior Notes, Series U, due 2042
144 
Total$1,554 

Credit Facility Borrowings and Repayments

During 2023, Lumen borrowed $925 million from, and made repayments of $725 million to, the Former Lumen Facilities.

2022 Borrowings and Repayments

During 2022, Lumen borrowed $2.4 billion from, and made repayments of $2.6 billion to, the Former Lumen Facilities.

Interest Expense

Interest expense includes interest on total long-term debt. The following table presents the amount of gross interest expense, net of capitalized interest:

 Years Ended December 31,
 202420232022
 (Dollars in millions)
Interest expense:   
Gross interest expense$1,548 1,269 1,398 
Capitalized interest(176)(111)(66)
Total interest expense$1,372 1,158 1,332 

Lumen Credit Agreements

Superpriority Revolving/Term A Credit Agreement

On the TSA Effective Date, Lumen, as borrower, the lenders party thereto and Bank of America, as administrative agent and collateral agent, entered into the Superpriority Revolving/Term A Credit Agreement (the “RCF/TLA Credit Agreement”), providing for:

a superpriority “first out” series A revolving credit facility with original commitments of approximately $489 million (the “Series A Revolving Credit Facility”);

a superpriority “second out” series B revolving credit facility with original commitments of approximately $467 million (the “Series B Revolving Credit Facility”, and together with the Series A Revolving Credit Facility, the “Lumen Revolving Credit Facilities”); and
a superpriority secured term loan facility in the amount of approximately $377 million (the “Lumen TLA”).

Interest on borrowings under the RCF/TLA Credit Agreement is payable at the end of each interest period at a rate equal to, at Lumen’s option:

for the Series A Revolving Credit Facility, term SOFR (subject to a 2.00% floor) plus 4.00% for term SOFR loans or a base rate plus 3.00% for base rate loans;

for the Series B Revolving Credit Facility, term SOFR (subject to a 2.00% floor) plus 6.00% for term SOFR loans or a base rate plus 5.00% for base rate loans; and

for the Lumen TLA, term SOFR (subject to a 2.00% floor) plus a 6.00% for term SOFR loans or a base rate plus 5.00% for base rate loans.

Lumen may prepay amounts outstanding under the Series B Revolving Credit Facility or Lumen TLA at anytime without premium or penalty. If no amounts are outstanding under the Series B Revolving Credit Facility, Lumen may prepay amounts outstanding under the Series A Revolving Credit Facility without premium or penalty.

Both of the Lumen Revolving Credit Facilities mature on June 1, 2028 (in each case subject to a springing maturity in certain circumstances). The Lumen TLA matures on June 1, 2028 and requires Lumen to make quarterly amortization payments of 1.25% of the initial principal amount and certain specified mandatory prepayments upon the occurrence of certain transactions.

At December 31, 2024, no borrowings were outstanding under Lumen’s (i) Series A Revolving Credit Facility, with commitments of approximately $489 million, or (ii) Series B Revolving Credit Facility, with commitments of approximately $465 million.

Superpriority Term B Credit Agreement

On the TSA Effective Date, Lumen, as borrower, the lenders party thereto, Wilmington Trust, National Association (“WTNA”), as administrative agent, and Bank of America, as collateral agent, entered into a Superpriority Term B Credit Agreement (the “TLB Credit Agreement”), providing for:

a superpriority secured term loan facility in a principal amount of approximately $1.6 billion maturing April 15, 2029 (the “Lumen TLB-1”); and

a superpriority secured term loan facility in a principal amount of approximately $1.6 billion maturing April 15, 2030 (the “Lumen TLB-2”, and together with the Lumen TLB-1, the “Lumen TLB”).

Interest on borrowings under the TLB Credit Agreement is payable at the end of each interest period at a rate equal to, at Lumen’s option, adjusted term SOFR (subject to a 0% floor) plus 2.35% for term SOFR loans or a base rate plus 1.35% for base rate loans.

The Lumen TLB requires Lumen to make quarterly amortization payments of 0.25% of the initial principal amount and certain specified mandatory prepayments upon the occurrence of certain transactions. Amounts outstanding under the Lumen TLB may be prepaid at any time without premium or penalty.

Former Facilities

In connection with entering into the RCF/TLA Credit Agreement, all revolving commitments under Lumen’s amended and restated credit agreement dated January 31, 2020 (the “Former Parent Facilities”) were terminated and substantially all of the debt issued thereunder was repaid.
Level 3 Credit Agreements

Credit Agreement dated March 22, 2024

On the TSA Effective Date, Level 3 Financing, as borrower, Level 3 Parent, LLC. the lenders party thereto and WTNA, as administrative agent and collateral agent, entered into a credit agreement (the “New Level 3 Credit Agreement”), providing for:

a secured term B-1 loan facility in the principal amount of approximately $1.2 billion maturing April 15, 2029; and

a secured term B-2 loan facility in the principal amount of approximately $1.2 billion maturing April 15, 2030.

Interest on borrowings under the New Level 3 Credit Agreement is payable at the end of each interest period at a rate equal to, at Level 3 Financing’s option, term SOFR (subject to a 2.00% floor) plus 6.56% for term SOFR loans or a base rate plus 5.56% for base rate loans.

Amounts outstanding under the New Level 3 Credit Agreement may be prepaid at any time, subject to a premium of (i) 2.00% of the aggregate principal amount if prepaid on or prior to the 12-month anniversary of the TSA Effective Date and (ii) 1.00% of the aggregate principal amount if prepaid after the 12-month anniversary of the TSA Effective Date and on or prior to the 24-month anniversary of the TSA Effective Date. The New Level 3 Facilities require Level 3 Financing to make certain specified mandatory prepayments upon the occurrence of certain transactions.

Former Facility

In connection with entering into the New Level 3 Credit Agreement, substantially all of the indebtedness issued under Level 3 Financing’s amended and restated credit agreement dated as of November 29, 2019 (the “Former Level 3 Facility”) was repaid.

Senior Notes of Lumen and its Subsidiaries

The Company’s consolidated indebtedness at December 31, 2024 included:

superpriority senior secured notes issued by Lumen;

first and second lien secured notes issued by Level 3 Financing; and

senior unsecured notes issued by Lumen, Level 3 Financing, Qwest, and Qwest Capital Funding, Inc.

All of these notes carry fixed interest rates and all principal is due on the notes’ respective maturity dates, which rates and maturity dates are summarized in the table above.

Except for a limited number of senior notes issued by Qwest Corporation, the issuer generally can redeem the notes, at its option, in whole or in part, (i) pursuant to a fixed schedule of pre-established redemption prices, (ii) pursuant to a “make whole” redemption price or (iii) under certain other specified limited conditions.

Revolving Letters of Credit

We use various financial instruments in the normal course of business. These instruments include letters of credit, which are conditional commitments issued on our behalf in accordance with specified terms and conditions. Lumen may draw letters of credit under (i) an uncommitted $225 million revolving letter of credit facility and (ii) the Lumen Revolving Credit Facilities.

At December 31, 2024, we had $220 million of undrawn letters of credit outstanding, $217 million of which were issued under the Lumen Revolving Credit Facilities, $1 million of which were issued under our $225 million uncommitted letter of credit facility and $2 million of which were issued under a separate facility maintained by one of our subsidiaries (the full amount of which is collateralized by cash).
Certain Guarantees and Security Interests

Lumen’s obligations under its RCF/TLA Credit Agreement are unsecured, but certain of Lumen’s subsidiaries have provided an unconditional guarantee of payment of Lumen’s obligations (such entities, the “Lumen Guarantors”) and certain of such guarantees will be secured by a lien on substantially all of the assets of the applicable Lumen Guarantors. Level 3 Parent, LLC, Level 3 Financing and certain of Level 3 Financing’s subsidiaries have provided an unconditional guarantee of payment of Lumen’s obligations under its Series A Revolving Credit Facility of up to $150 million and under its Series B Revolving Credit Facility of up to $150 million, in each case secured by a lien on substantially all of their assets (such entities, the “Level 3 Collateral Guarantors”). The guarantee by the Level 3 Collateral Guarantors may be reduced or terminated under certain circumstances. Qwest Corporation and certain of its subsidiaries have provided an unsecured guarantee of collection of Lumen’s obligations under the Lumen Revolving Credit Facilities and Lumen TLA (the “Qwest Guarantors”).

Lumen’s obligations under the TLB are unsecured. The term loans issued under this agreement are guaranteed by the Lumen Guarantors and the Qwest Guarantors on the same basis as those entities guarantee Lumen’s obligations under its RCF/TLA Credit Agreement.

Level 3 Financing’s obligations under the New Level 3 Credit Agreement are secured by a first lien on substantially all of its assets. In addition, the other Level 3 Collateral Guarantors have provided an unconditional guarantee of payment of Level 3 Financing’s obligations under the New Level 3 Credit Agreement secured by a lien on substantially all of their assets.

Lumen’s superpriority secured senior notes are guaranteed by the Lumen Guarantors and the Qwest Guarantors on the same basis as those entities guarantee Lumen’s obligations under its RCF/TLA Credit Agreement (subject, in certain cases, to receipt of necessary regulatory approvals). Level 3 Financing’s obligations under its first lien notes are secured by a first lien on substantially all of its assets (subject, in certain cases, to receipt of necessary regulatory approvals), and are guaranteed by the other Level 3 Collateral Guarantors (or, for certain such guarantors, for certain notes, will be guaranteed upon the receipt of required regulatory approvals) on the same basis as the guarantees provided by such entities under the New Level 3 Credit Agreement. Level 3 Financing’s obligations under its second lien notes are secured by a second lien on substantially all of its assets, and are guaranteed by the other Level 3 Collateral Guarantors on the same basis as the guarantees provided by such entities under the New Level 3 Credit Agreement, except the lien securing such guarantees is a second lien.

Lumen's reimbursement obligations under its outstanding letters of credit are secured by guarantees issued by certain of its subsidiaries.

Level 3 Financing's obligations under its unsecured notes are guaranteed on an unsecured basis by the same affiliated entities that guarantee the New Level 3 Credit Agreement and Level 3 Financing's secured notes. The senior unsecured notes issued by Qwest Capital Funding, Inc. are guaranteed by its parent, Qwest Communications International Inc.

Covenants

Lumen

Under its Superpriority Revolving/Term Loan A Credit Agreement, Lumen may not permit:

(i) its maximum total net leverage ratio to exceed 5.75 to 1.00 as of the last day of each fiscal quarter, stepping down to 5.50 to 1.00 with respect to each fiscal quarter ending after December 31, 2024 and further stepping down to 5.25 to 1.00 with respect to each fiscal quarter ending after December 31, 2025; or

(ii) its interest coverage ratio as of the last day of any test period to be less than 2.00 to 1.00.
Lumen’s superpriority credit agreements and superpriority senior secured notes contain various representations and warranties and extensive affirmative and negative covenants. Such covenants include, among other things and subject to certain significant exceptions, restrictions on our ability to declare or pay dividends, repurchase stock, repay certain other indebtedness, create liens, incur additional indebtedness, make investments, engage in transactions with our affiliates, dispose of assets and merge or consolidate with other persons.

Lumen’s senior unsecured notes were issued under four separate indentures. These indentures restrict Lumen’s ability to (i) incur, issue or create liens upon its property and (ii) consolidate with or merge into, or transfer or lease all or substantially all of its assets to, any other party.

Under certain circumstances in connection with a “change of control” of Lumen, Lumen will be required to make an offer to repurchase each series of these senior notes (other than two of its older series of notes) at a price of 101% of the principal amount redeemed, plus accrued and unpaid interest.

Level 3 Financing

The New Level 3 Credit Agreement and Level 3 Financing's first and second lien secured notes contain various representations and extensive affirmative and negative covenants. Such covenants include, among other things and subject to certain significant exceptions, restrictions on their ability to declare or pay dividends, repay certain other indebtedness, create liens, incur additional indebtedness, make investments, dispose of assets and merge or consolidate with other persons. Also, under certain circumstances in connection with a “change of control” of Level 3 Parent, LLC or Level 3 Financing, Level 3 Financing will be required to make an offer to repurchase each series of its outstanding senior notes at a price of 101% of the principal amount redeemed, plus accrued and unpaid interest.

Qwest Companies

The senior notes of Qwest Corporation were issued under indentures dated April 15, 1990 and October 15, 1999. These indentures contain restrictions on the incurrence of liens and the consummation of certain transactions substantially similar to the above-described covenants in the indentures governing Lumen’s senior unsecured notes (but contain no mandatory repurchase provisions). The senior notes of Qwest Capital Funding, Inc. were issued under an indenture dated June 29, 1998 containing terms substantially similar to those set forth in Qwest Corporation's indentures.

Impact of Covenants

The debt covenants applicable to Lumen Technologies, Inc. and its subsidiaries could have a material adverse impact on their ability to operate or expand their respective businesses, to pursue strategic transactions, or to otherwise pursue their plans and strategies. The covenants of the Level 3 companies may significantly restrict the ability of Lumen Technologies, Inc. to receive cash from the Level 3 companies, to distribute cash from the Level 3 companies to other of Lumen’s affiliated entities, or to enter into other transactions among Lumen’s wholly-owned entities.

Certain of the debt instruments of Lumen Technologies, Inc. and its subsidiaries contain cross payment default or cross acceleration provisions. When present, these provisions could have a wider impact on liquidity than might otherwise arise from a default or acceleration of a single debt instrument.

The ability of Lumen Technologies, Inc. and its subsidiaries to comply with the financial covenants in their respective debt instruments could be adversely impacted by a wide variety of events, including unforeseen contingencies, many of which are beyond their control.

Compliance

As of December 31, 2024, Lumen Technologies believes it and its subsidiaries were in compliance with the provisions and financial covenants in their respective material debt agreements in all material respects.
Guarantees

Lumen does not guarantee the debt of any unaffiliated parties, but, as noted above, as of December 31, 2024 certain of its key subsidiaries guaranteed (i) its debt outstanding under its superpriority credit agreements, its superpriority senior secured notes and its $225 million letter of credit facility and (ii) the outstanding term loans or senior secured notes issued by certain other subsidiaries. As further noted above, several of the subsidiaries guaranteeing these obligations have pledged substantially all of their assets to secure certain of their respective guarantees.

Subsequent Events

As of February 15, 2025, (i) Lumen Technologies redeemed approximately $132 million aggregate principal amount of its unsecured senior notes and (ii) Level 3 Financing redeemed approximately $70 million aggregate principal amount of its unsecured senior notes, both in exchange for cash.
v3.25.0.1
Accounts Receivable
12 Months Ended
Dec. 31, 2024
Receivables [Abstract]  
Accounts Receivable
Note 8—Accounts Receivable

The following table presents details of our accounts receivable balances:
 As of December 31,
 20242023
 (Dollars in millions)
Trade and purchased receivables$1,181 1,181 
Earned and unbilled receivables63 165 
Other46 39 
Total accounts receivable1,290 1,385 
Less: allowance for credit losses(59)(67)
Accounts receivable, less allowance$1,231 1,318 

We are exposed to concentrations of credit risk from our customers. We generally do not require collateral to secure our receivable balances. We have agreements with other communications service providers whereby we agree to bill and collect on their behalf for services rendered by those providers to our customers within our local service area. We purchase accounts receivable from other communications service providers primarily on a recourse basis and include these amounts in our accounts receivable balance. We have not experienced any significant loss associated with these purchased receivables.
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Property, Plant and Equipment
12 Months Ended
Dec. 31, 2024
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
Note 9—Property, Plant and Equipment

Net property, plant and equipment is composed of the following:
 Depreciable
Lives
As of December 31,
 
2024
2023
  (Dollars in millions)
LandN/A$630 646 
Fiber, conduit and other outside plant (1)
15-45 years
17,348 15,217 
Central office and other network electronics(2)
3-10 years
16,616 15,741 
Support assets(3)
3-30 years
6,804 6,714 
Construction in progress(4)
N/A2,144 2,758 
Gross property, plant and equipment 43,542 41,076 
Accumulated depreciation (23,121)(21,318)
Net property, plant and equipment $20,421 19,758 
_______________________________________________________________________________
(1)Fiber, conduit and other outside plant consists of fiber and metallic cable, conduit, poles and other supporting structures.
(2)Central office and other network electronics consists of circuit and packet switches, routers, transmission electronics and electronics providing service to customers.
(3)Support assets consist of buildings, data centers, computers and other administrative and support equipment.
(4)Construction in progress includes inventory held for construction and property of the aforementioned categories that has not been placed in service as it is still under construction.

During 2024, we initiated marketing of our Broomfield, Colorado office buildings to locate a buyer and have classified those buildings as held for sale, resulting in an impairment loss of $80 million. During the second quarter of 2023, we donated our Monroe, Louisiana campus and leased back a portion thereof. This donation resulted in a $101 million loss recognized for the year ended December 31, 2023.

We recorded depreciation expense of $1.9 billion, $1.9 billion and $2.1 billion for the years ended December 31, 2024, 2023 and 2022, respectively.

Asset Retirement Obligations

As of December 31, 2024 and 2023, our asset retirement obligations balance was primarily related to estimated future costs of removing equipment from leased properties and estimated future costs of properly disposing of asbestos and other hazardous materials upon remodeling or demolishing buildings. Asset retirement obligations are included in other long-term liabilities on our consolidated balance sheets.

Our fair value estimates were determined using the discounted cash flow method.

The following table provides asset retirement obligation activity:
 Years Ended December 31,
 20242023
 (Dollars in millions)
Balance at beginning of period$157 156 
Accretion expense12 
Liabilities settled(12)(9)
Change in estimate— 
Balance at end of period
$157 157 
The changes in estimate referred to in the table above were offset against gross property, plant and equipment.
v3.25.0.1
Severance
12 Months Ended
Dec. 31, 2024
Restructuring and Related Activities [Abstract]  
Severance
Note 10—Severance

Periodically, we reduce our workforce and accrue liabilities for the related severance costs. These workforce reductions result primarily from the progression or completion of our post-acquisition integration plans, increased competitive pressures, cost reduction initiatives, process improvements through automation and reduced workloads due to reduced demand for certain services.

During the fourth quarter of 2023 we reduced our global workforce by approximately 4% as part of our ongoing efforts to reorganize Lumen for growth by right-sizing our operations to improve our profitability. As a result of this plan, we incurred severance and related costs of approximately $53 million.

During April 2024, we further reduced our workforce by approximately 6% as a part of our efforts to change our workforce composition to reflect our ongoing transformation and cost reduction opportunities that align with our shapeshifting and focus on our strategic priorities. As a result of this plan, we incurred severance and related costs of approximately $103 million during the second quarter of 2024. We have not incurred, and do not expect to incur, any material impairment or exit costs related to either of these plans.

We report severance liabilities within accrued expenses and other liabilities - salaries and benefits in our consolidated balance sheets and report severance expenses in selling, general and administrative expenses in our consolidated statements of operations. As described in Note 17—Segment Information, we do not allocate these severance expenses to our segments.

Changes in our accrued liabilities for severance expenses were as follows:
Years Ended December 31,
20242023
 (Dollars in millions)
Balance at beginning of period$18 11 
Accrued to expense130 74 
Payments, net(136)(67)
Balance at end of period$12 18 
v3.25.0.1
Employee Benefits
12 Months Ended
Dec. 31, 2024
Retirement Benefits [Abstract]  
Employee Benefits
Note 11—Employee Benefits

Pension, Post-Retirement and Other Post-Employment Benefits

We sponsor various defined benefit pension plans (qualified and non-qualified) which, in the aggregate, cover a substantial portion of our employees. Pension benefits for participants of the Lumen Combined Pension Plan ("Combined Pension Plan") and, through the October 3, 2022 sale of the ILEC business, the Lumen Pension Plan, who are represented by a collective bargaining agreement are based on negotiated schedules. All other participants' pension benefits are based on each individual participant's years of service and compensation. We also maintain non-qualified pension plans for certain current and former highly compensated employees. We maintain post-retirement benefit plans that provide health care and life insurance benefits for certain eligible retirees. We also provide other post-employment benefits for certain eligible former employees. We use a December 31 measurement date for all our plans.
As of January 1, 2022, we spun off the Lumen Pension Plan from the Lumen Combined Pension Plan in anticipation of the sale of the ILEC business, as described further in Note 2—Divestitures of the Latin American, ILEC and EMEA Businesses. At the time of the spin-off, the Lumen Pension Plan covered approximately 2,500 active plan participants along with 19,000 other participants. At the time of the spin-off, the Lumen Pension Plan had a pension benefit obligation of $2.5 billion and assets of $2.2 billion. In addition, the December 31, 2021 actuarial (loss) gain and prior service cost included in accumulated other comprehensive loss was allocated between the Lumen Pension Plan and the Lumen Combined Pension Plan. Following a revaluation of the pension obligation and pension assets for the Lumen Pension Plan, in preparation for the closing of the sale of the ILEC business, we contributed approximately $319 million of Lumen's cash to the Lumen Pension Plan trust to fully fund the pension plan in September 2022. The amounts allocated to the Lumen Pension Plan were subject to adjustment up to the closing of the sale of the ILEC business on October 3, 2022, at which time the plan was transferred along with the rest of the assets and liabilities of the ILEC business. We recognized pension costs related to both plans through the sale of the ILEC business, at which time balances related to the Lumen Pension Plan were reflected in the calculation of our gain on the sale of the business.

Pension Benefits

United States funding laws require a company with a pension shortfall to fund the annual cost of benefits earned in addition to a seven-year amortization of the shortfall. Our funding policy for our Combined Pension Plan is to make contributions with the objective of accumulating ample assets to pay all qualified pension benefits when due under the terms of the plan. The accounting unfunded status of the Combined Pension Plan was $615 million and $736 million as of December 31, 2024 and 2023, respectively.

We made a voluntary contribution of $170 million to the trust for the Combined Pension Plan in 2024. We made no voluntary cash contributions to the Combined Pension Plan in 2023. As discussed above, we contributed approximately $319 million of cash to the Lumen Pension Plan trust to fully fund the pension plan in September 2022 in preparation for the closing of the sale of the ILEC business. We paid $4 million and $5 million of benefits directly to participants of our non-qualified pension plans in 2024 and 2023, respectively.

Benefits paid by the Combined Pension Plan are paid through a trust that holds all of the Plan's assets. The amount of required contributions to the Combined Pension Plan in 2025 and beyond will depend on a variety of factors, most of which are beyond our control, including earnings on plan investments, prevailing interest rates, demographic experience, changes in plan benefits and changes in funding laws and regulations. Based on current laws and circumstances, we do not believe we are required to make any contributions to the Combined Pension Plan in 2025 and we do not expect to make voluntary contributions to the trust for the Combined Pension Plan in 2025. We estimate that in 2025 we will pay approximately $4 million of benefits directly to participants of our non-qualified pension plans.

We recognize in our consolidated balance sheets the funded status of the legacy Level 3 Parent, LLC qualified defined benefit post-retirement plan. This plan was fully funded as of December 31, 2024 and 2023. Additionally, as previously mentioned, we sponsor unfunded non-qualified pension plans for certain current and former highly-compensated employees. The net unfunded status of our non-qualified pension plans was $30 million and $33 million for the years ended December 31, 2024 and 2023, respectively. Due to the insignificant impact of these pension plans on our consolidated financial statements, we have predominantly excluded them from the remaining employee benefit disclosures in this Note, unless otherwise specifically stated.

Post-Retirement Benefits

Our post-retirement benefit plans provide post-retirement benefits to qualified retirees and allow certain participants to receive benefits at no or reduced cost and other participants to receive benefits on a shared cost basis. The post-retirement benefits not paid by the trusts are funded by us and we expect to continue funding these post-retirement obligations as benefits are paid. The accounting unfunded status of our qualified post-retirement benefit plan was $1.7 billion and $1.9 billion as of December 31, 2024 and 2023, respectively.

Assets in the post-retirement trusts were substantially depleted as of December 31, 2016; as of December 31, 2019 the Company ceased to pay certain post-retirement benefits through the trusts. No contributions were made to the post-retirement trusts in 2024, nor 2023. Benefits are paid directly by us with available cash. In 2024, we paid $185 million of post-retirement benefits, net of participant contributions and direct subsidies. In 2025, we currently expect to pay directly $186 million of post-retirement benefits, net of participant contributions and direct subsidies.
We anticipate our expected health care cost trend to range from 6.20% to 7.90% in 2025 and grading to 4.50% by 2031. Our post-retirement benefit cost, for certain eligible legacy Qwest retirees and certain eligible legacy CenturyLink retirees, is capped at a set dollar amount. Therefore, those health care benefit obligations are not subject to increasing health care trends after the effective date of the caps.

Expected Cash Flows

The Combined Pension Plan payments, post-retirement health care benefit payments and premiums, and life insurance premium payments are either distributed from plan assets or paid by us. The estimated benefit payments provided below are based on actuarial assumptions using the demographics of the employee and retiree populations and have been reduced by estimated participant contributions.
Combined Pension PlanPost-Retirement
Benefit Plans
Medicare Part D
Subsidy Receipts
 (Dollars in millions)
Estimated future benefit payments:   
2025$569 188 (2)
2026490 184 (2)
2027473 180 (2)
2028450 173 (2)
2029433 166 (1)
2030 - 20341,899 720 (5)

Net Periodic Benefit Expense

We utilize a full yield curve approach in connection with estimating the service and interest components of net periodic benefit expense by applying the specific spot rates along the yield curve used in the determination of the benefit obligation to the relevant projected cash flow.

The actuarial assumptions used to compute the net periodic benefit expense for our Combined Pension Plan and post-retirement benefit plans are based upon information available as of the beginning of the year, as presented in the following table.
 Combined Pension PlanPost-Retirement Benefit Plans
 202420232022202420232022
Actuarial assumptions at beginning of year:      
Discount rate
5.16% - 5.35%
5.45% - 5.69%
2.29% - 3.12%
5.17% - 5.42%
5.43% - 5.75%
2.19% - 5.78%
Rate of compensation increase3.25 %3.25 %3.25 %N/AN/AN/A
Expected long-term rate of return on plan assets(1)
6.50 %6.50 %5.50 %3.00 %3.00 %4.00 %
Initial health care cost trend rateN/AN/AN/A
7.50% / 5.40%
7.20% / 5.00%
5.00% / 5.75%
Ultimate health care cost trend rateN/AN/AN/A4.50 %4.50 %4.50 %
Year ultimate trend rate is reachedN/AN/AN/A203120302025
_______________________________________________________________________________
N/A - Not applicable
(1)Rates are presented net of projected fees and administrative costs.
Prior to the sale of the ILEC business on October 3, 2022, we realized pension costs related to the Lumen Pension Plan. Net periodic benefit expense for our Combined Pension Plan and the Lumen Pension Plan (through October 3, 2022, together the "Pension Plans") includes the following components:
 Pension Plans
Years Ended December 31,
 202420232022
 (Dollars in millions)
Service cost$24 25 44 
Interest cost251 270 194 
Expected return on plan assets(272)(287)(385)
Realized to gain on sale of businesses— — 546 
Special termination benefits charge— — 
Recognition of prior service credit(7)(7)(10)
Recognition of actuarial loss108 104 122 
Net periodic pension expense$104 107 511 

Net periodic benefit expense for our post-retirement benefit plans includes the following components:
 Post-Retirement Plans
Years Ended December 31,
 202420232022
 (Dollars in millions)
Service cost$10 
Interest cost94 103 72 
Realized to gain on sale of businesses— — (32)
Recognition of prior service cost(8)(8)
Recognition of actuarial loss(17)(20)(4)
Special termination benefits— — 
Net periodic post-retirement benefit expense$75 80 54 

Service costs for our Combined Pension Plan and post-retirement benefit plans are included in the cost of services and products and selling, general and administrative line items on our consolidated statements of operations and all other costs listed above, except for amounts realized as part of the net gain on sale of businesses, are included in other income (expense), net on our consolidated statements of operations for the years ended December 31, 2024, 2023 and 2022. Additionally, a portion of the service cost is also allocated to certain assets under construction, which are capitalized and reflected as part of property, plant and equipment in our consolidated balance sheets. As a result of ongoing efforts to reduce our workforce, we recognized a one-time charge in our net periodic post-retirement benefit expense in 2024 of $2 million and in our net periodic pension expense in 2023 of $2 million, both for special termination benefit enhancements paid to certain eligible employees upon voluntary retirement.

Our pension plan contains provisions that allow us, from time to time, to offer lump sum payment options to certain former employees in settlement of their future retirement benefits. We record an accounting settlement charge, consisting of the recognition of certain deferred costs of the pension plan associated with these lump sum payments only if, in the aggregate, they exceed or are probable to exceed the sum of the annual service and interest costs for the plan’s net periodic pension benefit cost, which represents the settlement accounting threshold. As of December 31, 2024, the settlement threshold was not reached. In the event of workforce reductions in the future, the annual lump sum payments may trigger settlement accounting.
Benefit Obligations

The actuarial assumptions used to compute the funded status for the plans are based upon information available as of December 31, 2024 and 2023 and are as follows:
 Combined Pension PlanPost-Retirement Benefit Plans
 As of December 31,As of December 31,
 2024202320242023
Actuarial assumptions at end of year:    
Discount rate5.62 %5.21 %5.60 %5.20 %
Rate of compensation increase3.25 %3.25 %N/AN/A
Initial health care cost trend rateN/AN/A
7.90% / 6.20%
7.50% / 5.40%
Ultimate health care cost trend rateN/AN/A4.50 %4.50 %
Year ultimate trend rate is reachedN/AN/A20312031
_______________________________________________________________________________
N/A - Not applicable

The Society of Actuaries did not release any revised mortality tables or projection scales in 2024, 2023, or 2022.

The short-term and long-term interest crediting rates during 2024 for cash balance components of the Combined Pension Plan were 4.3% and 3.5%, respectively.

The following tables summarize the change in the benefit obligations for the Combined Pension Plan and post-retirement benefit plans:
 Combined Pension Plan
Years Ended December 31,
 202420232022
 (Dollars in millions)
Change in benefit obligation:   
Benefit obligation at beginning of year$5,212 5,295 9,678 
Plan spin-off— — (2,552)
Service cost24 25 37 
Interest cost251 270 154 
Special termination benefits charge— — 
Actuarial (gain) loss(119)114 (1,432)
Benefits paid from plan assets(552)(494)(590)
Benefit obligation at end of year$4,816 5,212 5,295 
 Post-Retirement Benefit Plans
Years Ended December 31,
 202420232022
 (Dollars in millions)
Change in benefit obligation   
Benefit obligation at beginning of year$1,919 1,995 2,781 
Benefit obligation transferred to purchaser upon sale of business— — (26)
Service cost10 
Interest cost94 103 72 
Participant contributions27 32 37 
Direct subsidy receipts
Plan amendments— — (41)
Actuarial (gain) loss(84)14 (591)
Benefits paid by company(214)(228)(249)
Benefits paid from plan assets— (4)— 
Special termination benefits charge— — 
Benefit obligation at end of year$1,750 1,919 1,995 

Plan Assets

We maintain plan assets for our Combined Pension Plan and certain post-retirement benefit plans. As previously noted, assets in the post-retirement benefit plan trusts were substantially depleted as of December 31, 2016. The fair value of post-retirement benefit plan assets was $1 million, $1 million and $5 million at December 31, 2024, 2023 and 2022, respectively. Due to the insignificance of these assets on our consolidated financial statements, we have predominantly excluded them from the disclosures of plan assets in this Note, unless otherwise indicated.

The following table summarizes the change in the fair value of plan assets for the Combined Pension Plan:

 Combined Pension Plan
Years Ended December 31,
 202420232022
 (Dollars in millions)
Change in plan assets   
Fair value of plan assets at beginning of year$4,476 4,715 8,531 
Plan spin-off— — (2,239)
Return on plan assets107 255 (987)
Benefits paid from plan assets(552)(494)(590)
Contributions170 — — 
Fair value of plan assets at end of year$4,201 4,476 4,715 

The expected rate of return on plan assets is the long-term rate of return we expect to earn on the plan's assets, net of administrative expenses paid from plan assets. It is determined annually based on the strategic asset allocation and the long-term risk and return forecast for each asset class.
Our investment objective for the Combined Pension Plan assets is to achieve an attractive risk-adjusted return over time that will provide for the payment of benefits while minimizing the risk of large losses in funded status. We employ a liability-aware investment strategy designed to reduce the volatility of pension assets relative to pension liabilities. This strategy is evaluated frequently and is expected to evolve over time with changes in the funded status and other factors. Approximately 40% of plan assets is targeted to long-duration investment grade bonds and interest rate sensitive derivatives and 60% is targeted to diversified equity, fixed income and private market investments that are expected to outperform the liability with moderate funded status risk. At the beginning of 2025, our expected annual long-term rate of return on pension assets before consideration of administrative expenses is assumed to be 7.0%. Administrative expenses, including projected PBGC (Pension Benefit Guaranty Corporation) premiums, reduce the annual long-term expected return, net of administrative expenses, to 6.5%.

Permitted investments: Plan assets are managed consistent with the restrictions set forth by ERISA (the Employee Retirement Income Security Act of 1974, as amended).

Fair Value Measurements: Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between independent and knowledgeable parties who are willing and able to transact for an asset or liability at the measurement date. We use valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs when determining fair value and then we rank the estimated values based on the reliability of the inputs used following the fair value hierarchy set forth by the FASB. For additional information on the fair value hierarchy, see Note 14—Fair Value of Financial Instruments.

At December 31, 2024, we used the following valuation techniques to measure fair value for assets. There were no changes to these methodologies during 2024:

Level 1—Assets were valued using the closing price reported in the active market in which the individual security was traded. U.S. Treasury securities are valued at the bid price reported in an active market in which the security is traded. Variation margin due from/(to) brokers is valued at the expected next day cash settlement amount.

Level 2—Assets were valued using quoted prices in markets that are not active, broker dealer quotations, and other methods by which all significant inputs were observable at the measurement date. Fixed income securities primarily utilize observable market information and are based on a spread to U.S. Treasury securities and consider yields available on comparable securities of issuers with similar credit ratings, the new issue market for similar securities, secondary trading markets and dealer quotes. Option adjusted spread models are utilized to evaluate fixed income securities that have early redemption features. Derivative securities traded over the counter are valued based on gains or losses due to fluctuations in indices, interest rates, foreign currency exchange rates, security prices or other underlying factors. Repurchase agreements are valued based on expected settlement per the contract terms.

Level 3—Assets were valued using unobservable inputs in which little or no market data exists as reported by the respective institutions at the measurement date. Valuation methods may consider a range of factors, including estimates based on the assumptions of the investment entity.

The Combined Pension Plan's assets are invested in various asset categories utilizing multiple strategies and investment managers. Interests in commingled funds are fair valued using a practical expedient to the net asset value ("NAV") per unit (or its equivalent) of each fund. The NAV reported by the fund manager is based on the market value of the underlying investments owned by each fund, minus its liabilities, divided by the number of shares outstanding. Commingled funds can be redeemed at NAV, with a frequency that includes daily, monthly, quarterly, semi-annually and annually. These commingled funds include redemption notice periods between same day and 180 days. Investments in private funds, primarily limited partnerships, represent long-term commitments with a fixed maturity date and are also valued at NAV. The plan has unfunded commitments related to certain private fund investments, which in aggregate are not material to the plan. Valuation inputs for these private fund interests are generally based on assumptions and other information not observable in the market. Underlying investments held in funds are aggregated and are classified based on the fund mandate. Investments held in separate accounts are individually classified.
The table below presents the fair value of plan assets by category and the input levels used to determine those fair values at December 31, 2024. It is important to note that the asset allocations do not include market exposures that are gained with derivatives. Investments include dividend and interest receivables, pending trades and accrued expenses.
 Fair Value of Combined Pension Plan Assets
As of December 31, 2024
 Level 1Level 2Level 3Total
 (Dollars in millions)
Assets
Investment grade bonds (a)$372 1,391 — 1,763 
High yield bonds (b)— 26 30 
Emerging market bonds (c)70 34 — 104 
U.S. stocks (d)260 263 
Non-U.S. stocks (e)14 — 15 
Cash equivalents and short-term investments (o)— 
Total investments, excluding investments valued at NAV$722 1,455 2,183 
Other receivables27 
Investments valued at NAV2,359 
Liabilities
Repurchase agreements & other obligations (n)$— (361)— (361)
Derivatives (m)(1)(6)— (7)
Total pension plan assets   $4,201 

The table below presents the fair value of plan assets by category and the input levels used to determine those fair values at December 31, 2023. It is important to note that the asset allocations do not include market exposures that are gained with derivatives. Investments include dividend and interest receivable, pending trades and accrued expenses.
 Fair Value of Combined Pension Plan Assets
As of December 31, 2023
 Level 1Level 2Level 3Total
 (Dollars in millions)
Assets
Investment grade bonds (a)$390 1,838 — 2,228 
High yield bonds (b)— 32 36 
Emerging market bonds (c)57 57 — 114 
U.S. stocks (d)247 — 248 
Non-U.S. stocks (e)— — 
Multi-asset strategies (l)28 — — 28 
Total investments, excluding investments valued at NAV$728 1,927 2,660 
Investments valued at NAV2,192 
Liabilities
Repurchase agreements (n)$— (375)— (375)
Derivatives (m)(1)— — (1)
Total pension plan assets   $4,476 
The table below presents the fair value of plan assets valued at NAV by category for our Combined Pension Plan at December 31, 2024 and 2023.
 Fair Value of Plan Assets Valued at NAV
 
Combined Pension Plan
As of December 31,
20242023
 (Dollars in millions)
Investment grade bonds (a)$72 105 
High yield bonds (b)340 110 
Emerging market bonds (c)69 — 
U.S. stocks (d)51 
Non-U.S. stocks (e)529 412 
Emerging market stocks (f)10 
Private equity (g)253 272 
Private debt (h)398 421 
Market neutral hedge funds (i)85 77 
Directional hedge funds (j)108 124 
Real estate (k)218 265 
Multi-asset strategies (l)— 27 
Cash equivalents and short-term investments (o)277 318 
Total investments valued at NAV$2,359 2,192 

Below is an overview of the asset categories and the underlying strategies used in the preceding tables:

(a) Investment grade bonds represent investments in U.S. Treasury securities, agencies, corporate bonds, mortgage-backed securities, asset-backed securities and commercial mortgage-backed securities.

(b) High yield bonds represent investments in below investment grade fixed income securities.

(c) Emerging market bonds represent investments issued by governments and other entities located in emerging countries.

(d) U.S. stocks represent investments in stocks of U.S. based companies.

(e) Non-U.S. stocks represent investments in companies based in developed countries outside the U.S.

(f) Emerging market stocks represent investments in stocks of companies located in emerging markets.

(g) Private equity represents non-public investments in domestic and foreign buyout and venture capital funds. Private equity funds are primarily structured as limited partnerships and are valued according to the valuation policy of each partnership, subject to prevailing accounting and other regulatory guidelines.

(h) Private debt represents non-public investments in performing and distressed credits.

(i) Market neutral hedge funds hold investments in a diversified mix of instruments that are intended in combination to exhibit low correlations to market fluctuations. These investments are typically combined with futures to achieve uncorrelated excess returns over various markets.

(j) Directional hedge funds represent investments that may exhibit somewhat higher correlations to market fluctuations than the market neutral hedge funds.

(k) Real estate represents investments in a diversified portfolio of real estate properties.
(l) Multi-asset strategies represent broadly diversified strategies that have the flexibility to tactically adjust exposures to different asset classes through time.

(m) Derivatives include exchange traded futures contracts as well as privately negotiated over the counter contracts. The market values represent gains or losses that occur due to differences between stated contract terms and fluctuations in underlying market instruments.

(n) Repurchase agreements and other obligations includes contracts where the security owner sells a security with the agreement to buy it back at a future date and price. Other obligations include obligations to repay cash collateral held by a plan, net liability for investment purchases pending settlement, and accrued plan expenses.

(o) Cash equivalents and short-term investments represent investments that are used in conjunction with derivatives positions or are used to provide liquidity for the payment of benefits or other purposes.

Derivative instruments: Derivative instruments are used to reduce risk as well as provide return. The gross notional exposure of the derivative instruments directly held by the Combined Pension Plan is shown below. The notional amount of the derivatives corresponds to market exposure but does not represent an actual cash investment.

 Gross Notional Exposure
 Combined Pension Plan
Years Ended December 31,
 20242023
 (Dollars in millions)
Derivative instruments:  
Exchange-traded U.S. equity futures$212 60 
Exchange-traded Treasury and other interest rate futures795 1,136 
Exchange-traded Foreign currency futures— 
Interest rate swaps149 214 
Credit default swaps124 72 
Index swaps701 94 
Foreign exchange forwards47 57 
Options15 32 

Concentrations of Risk: Investments, in general, are exposed to various risks, such as significant world events, interest rate, credit, foreign currency and overall market volatility risk. These risks are managed by broadly diversifying assets across numerous asset classes and strategies with differing expected returns, volatilities and correlations. Risk is also broadly diversified across numerous market sectors and individual companies. Financial instruments that potentially subject the plans to concentrations of counterparty risk consist principally of investment contracts with high quality financial institutions. These investment contracts are typically collateralized obligations and/or are actively managed, limiting the amount of counterparty exposure to any one financial institution. Although the investments are well diversified, the value of plan assets could change materially depending upon the overall market volatility, which could affect the funded status of the plan.
The table below presents a rollforward of the Combined Pension Plan assets valued using Level 3 inputs:
 
Combined Pension Plan Assets Valued
Using Level 3 Inputs
 High
Yield
Bonds
U.S.
Stocks
Non-U.S. Stocks
Total
 (Dollars in millions)
Balance at December 31, 2022$— 
Dispositions(2)— — (2)
Actual return on plan assets— — 
Balance at December 31, 2023— 
Acquisition— — 
Actual return on plan assets— — — — 
Balance at December 31, 2024$

Certain gains and losses are allocated between assets sold during the year and assets still held at year-end based on transactions and changes in valuations that occurred during the year. These allocations also impact our calculation of net acquisitions and dispositions.

For the year ended December 31, 2024, the investment program produced actual gains on Combined Pension Plan assets of $107 million as compared to expected returns of $272 million, for a difference of $165 million. For the year ended December 31, 2023, the investment program produced actual gains on Combined Pension Plan assets of $255 million as compared to the expected returns of $287 million, for a difference of $32 million. The short-term annual returns on plan assets will almost always be different from the expected long-term returns and the plans could experience net gains or losses, due primarily to the volatility occurring in the financial markets during any given year.

Unfunded Status

The following table presents the unfunded status of the Combined Pension Plan and post-retirement benefit plans:
 Combined Pension PlanPost-Retirement
Benefit Plans
 Years Ended December 31,Years Ended December 31,
 2024202320242023
 (Dollars in millions)
Benefit obligation$(4,816)(5,212)(1,750)(1,919)
Fair value of plan assets4,201 4,476 
Unfunded status(615)(736)(1,749)(1,918)
Current portion of unfunded status— — (186)(193)
Non-current portion of unfunded status$(615)(736)(1,563)(1,725)

The current portion of our post-retirement benefit obligations is recorded on our consolidated balance sheets in accrued expenses and other current liabilities-salaries and benefits.
Accumulated Other Comprehensive Loss-Recognition and Deferrals

The following table presents cumulative items not recognized as a component of net periodic benefits expense as of December 31, 2023, items recognized as a component of net periodic benefits expense in 2024, additional items deferred during 2024 and cumulative items not recognized as a component of net periodic benefits expense as of December 31, 2024. The items not recognized as a component of net periodic benefits expense have been recorded on our consolidated balance sheets in accumulated other comprehensive loss:

 As of and for the Years Ended December 31,
2023Recognition
of Net
Periodic
Benefits
Expense
DeferralsNet
Change in
AOCL
2024
 (Dollars in millions)
Accumulated other comprehensive (loss) income     
Pension plans:     
Net actuarial (loss) gain$(1,819)108 (48)60 (1,759)
Settlement charge383 — — — 383 
Prior service benefit (cost)10 (7)— (7)
Deferred income tax benefit (expense)381 (25)14 (11)370 
Total pension plans(1,045)76 (34)42 (1,003)
Post-retirement benefit plans:     
Net actuarial gain (loss)337 (17)84 67 404 
Prior service benefit (cost)29 (8)— (8)21 
Curtailment loss— — — 
Deferred income tax (expense) benefit(94)(21)(15)(109)
Total post-retirement benefit plans276 (19)63 44 320 
Total accumulated other comprehensive (loss) income$(769)57 29 86 (683)
The following table presents cumulative items not recognized as a component of net periodic benefits expense as of December 31, 2022, items recognized as a component of net periodic benefits expense in 2023, additional items deferred during 2023 and cumulative items not recognized as a component of net periodic benefits expense as of December 31, 2023. The items not recognized as a component of net periodic benefits expense have been recorded on our consolidated balance sheets in accumulated other comprehensive loss:

 As of and for the Years Ended December 31,
 2022Recognition
of Net
Periodic
Benefits
Expense
DeferralsNet
Change in
AOCL
2023
 (Dollars in millions)
Accumulated other comprehensive (loss) income     
Pension plans:     
Net actuarial (loss) gain$(1,752)80 (147)(67)(1,819)
Settlement charge383 — — — 383 
Prior service benefit (cost)17 (7)— (7)10 
Deferred income tax benefit (expense)367 (23)37 14 381 
Total pension plans(985)50 (110)(60)(1,045)
Post-retirement benefit plans:     
Net actuarial gain (loss)371 (20)(14)(34)337 
Prior service benefit (cost)37 (8)— (8)29 
Curtailment loss— — — 
Deferred income tax (expense) benefit(104)10 (94)
Total post-retirement benefit plans308 (21)(11)(32)276 
Total accumulated other comprehensive (loss) income$(677)29 (121)(92)(769)

Medicare Prescription Drug, Improvement and Modernization Act of 2003

We sponsor post-retirement health care plans with several benefit options that provide prescription drug benefits that we deem actuarially equivalent to or exceeding Medicare Part D. We recognize the impact of the federal subsidy received under the Medicare Prescription Drug, Improvement and Modernization Act of 2003 in the calculation of our post-retirement benefit obligation and net periodic post-retirement benefit expense.

Other Benefit Plans

Health Care and Life Insurance

We provide health care and life insurance benefits to essentially all of our active employees. We are largely self-funded for the cost of the health care plan. Our health care benefit expense for current employees was $281 million, $288 million and $296 million for the years ended December 31, 2024, 2023 and 2022, respectively. Union-represented employee benefits are based on negotiated collective bargaining agreements. Employees contributed $79 million, $89 million, $101 million for the years ended December 31, 2024, 2023 and 2022, respectively. Our group basic life insurance plans are fully insured and the premiums are paid by us.
401(k) Plans

We sponsor a qualified defined contribution plan covering substantially all of our U.S. employees. Under this plan, employees may contribute a percentage of their annual compensation up to certain maximums, as defined by the plan and by the Internal Revenue Service. Currently, we match a percentage of employee contributions in cash. At December 31, 2024 and 2023, the assets of the plan included approximately 8 million and 9 million shares of our common stock, all of which were the result of the combination of previous employer match and participant directed contributions. We recognized expenses related to this plan of $82 million, $87 million and $91 million for the years ended December 31, 2024, 2023 and 2022, respectively.

Deferred Compensation Plans

We sponsor non-qualified deferred compensation plans for various groups that included certain of our current and former highly compensated employees. The value of liabilities related to these plans was not significant.
v3.25.0.1
Stock-based Compensation
12 Months Ended
Dec. 31, 2024
Share-Based Payment Arrangement [Abstract]  
Stock-based Compensation
Note 12—Stock-based Compensation

We maintain an equity incentive program that allows our Board of Directors (through its Human Resources and Compensation Committee or a senior officer acting under delegated authority) to grant incentives to certain employees and outside directors in one or more forms, including: incentive and non-qualified stock options, stock appreciation rights, restricted stock awards, restricted stock units and market and other equity-based awards.

Restricted Stock Awards and Restricted Stock Unit Awards

We grant equity based restricted stock and restricted stock units that contain service only conditions for vesting (“Service Awards”), awards that contain both service and market conditions for vesting (“Market Awards”) and awards that contain both service and performance conditions for vesting (“Performance Awards”). The fair value of Service Awards is based upon the closing stock price on the accounting grant date and the awards generally vest over periods ranging from one to four years. The fair value of Market Awards is determined using Monte-Carlo simulations and the awards vest over periods up to three years. The number of shares ultimately earned for Market Awards is typically based upon our total shareholder return as compared to the return of selected peer companies and can range between 0% and 200% of the target number of shares for the award. The fair value of Performance Awards is based upon the closing stock price on the accounting grant date; however, the award value may increase, or decrease based upon the extent to which the performance conditions are satisfied. Performance Awards vest over periods of up to three-years and specify a target number of shares for the award. The recipient ultimately can receive between 0% and 200% of the target number of shares depending upon the extent to which the performance conditions are satisfied. All stock awards granted in 2024 were subject to service vesting conditions only.

The following table summarizes activity involving restricted stock and restricted stock unit awards for the year ended December 31, 2024:

Number of
Shares
Weighted-
Average
Grant Date
Fair Value
 (in thousands) 
Non-vested at December 31, 2023
28,052 $6.82 
Granted14,274 1.69 
Vested(8,579)6.70 
Forfeited(5,587)12.25 
Non-vested at December 31, 2024
28,160 3.18 
During 2024, we granted 14.3 million shares of restricted stock and restricted stock unit awards at a weighted-average price of $1.69. During 2023, we granted 14.8 million shares of restricted stock and restricted stock unit awards at a weighted-average price of $1.85. During 2022, we granted 18.8 million shares of restricted stock and restricted stock unit awards at a weighted-average price of $11.47. The total fair value of restricted stock and restricted stock unit awards that vested during 2024, 2023 and 2022, was $27 million, $21 million and $98 million, respectively. We do not estimate forfeitures but recognize them as they occur.

Compensation Expense and Tax Benefit

For Service Awards that vest ratably over the service period, we recognize compensation expense on a straight-line basis over the requisite service period for the entire award. For Service Awards that vest at the end of the service period and for Market Awards, we recognize compensation expense over the service period. For our Performance Awards, we recognize compensation expense over the service period and based upon the expected performance outcome, until the final performance outcome is determined. Total compensation expense for all stock-based payment arrangements for the years ended December 31, 2024, 2023 and 2022, was $29 million, $52 million and $98 million, respectively. Our tax benefit recognized in the consolidated statements of operations for our stock-based payment arrangements for the years ended December 31, 2024, 2023 and 2022, was $7 million, $12 million and $25 million, respectively. At December 31, 2024, there was $28 million of total unrecognized compensation expense related to our stock-based payment arrangements, which we expect to recognize over a weighted-average period of 1.4 years.
v3.25.0.1
Loss Per Common Share
12 Months Ended
Dec. 31, 2024
Earnings Per Share [Abstract]  
Loss Per Common Share
Note 13—Loss Per Common Share

Basic and diluted loss per common share for the years ended December 31, 2024, 2023 and 2022 were calculated as follows:

 Years Ended December 31,
 202420232022
 (Dollars in millions, except per share amounts, shares in thousands)
Loss (numerator)   
Net loss $(55)(10,298)(1,548)
Net loss applicable to common stock for computing basic loss per common share(55)(10,298)(1,548)
Net loss as adjusted for purposes of computing diluted loss per common share$(55)(10,298)(1,548)
Shares (denominator):  
Weighted-average number of shares:   
Outstanding during period1,014,554 1,006,787 1,028,069 
Non-vested restricted stock(26,874)(23,706)(20,552)
Weighted average shares outstanding for computing basic loss per common share987,680 983,081 1,007,517 
Incremental common shares attributable to dilutive securities:   
Shares issuable under convertible securities— — — 
Shares issuable under incentive compensation plans— — — 
Number of shares as adjusted for purposes of computing diluted loss per common share987,680 983,081 1,007,517 
Basic loss per common share$(0.06)(10.48)(1.54)
Diluted loss per common share(1)
$(0.06)(10.48)(1.54)
______________________________________________________________________________
(1)For the years ended December 31, 2024, December 31, 2023, and December 31, 2022, we excluded from the calculation of diluted loss per share 7.3 million shares, 0.3 million shares and 3.8 million shares, respectively, potentially issuable under incentive compensation plans or convertible securities, as their effect, if included, would have been anti-dilutive due to our net loss position.
Our calculation of diluted loss per common share excludes non-vested restricted stock awards that are anti-dilutive based upon the terms of the award and due to the lower stock price resulting in more assumed repurchases and greater antidilution. Such shares were 16.0 million, 22.5 million and 13.8 million for 2024, 2023 and 2022, respectively.
v3.25.0.1
Fair Value of Financial Instruments
12 Months Ended
Dec. 31, 2024
Fair Value Disclosures [Abstract]  
Fair Value of Financial Instruments
Note 14—Fair Value of Financial Instruments

Our financial instruments consist of cash, cash equivalents, restricted cash, accounts receivable, accounts payable, long-term debt (excluding finance lease and other obligations), interest rate swap contracts, certain equity investments and certain indemnification obligations. Due primarily to their short-term nature, the carrying amounts of our cash, cash equivalents, restricted cash, accounts receivable and accounts payable approximate their fair values.

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between independent and knowledgeable parties who are willing and able to transact for an asset or liability at the measurement date. We use valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs when determining fair value and then we rank the estimated values based on the reliability of the inputs using the below-described fair value hierarchy.

We determined the fair values of our long-term debt, including the current portion, based on quoted market prices where available or, if not available, based on inputs other than quoted market prices in active markets that are either directly or indirectly observable such as discounted future cash flows using current market interest rates.

The three input levels in the hierarchy of fair value measurements are defined by the FASB generally as follows:
Input LevelDescription of Input
Level 1Observable inputs such as quoted market prices in active markets.
Level 2Inputs other than quoted prices in active markets that are either directly or indirectly observable.
Level 3Unobservable inputs in which little or no market data exists.

The following table presents the carrying amounts and estimated fair values of our following financial assets and liabilities as of December 31, 2024 and 2023, as well as the input level used to determine the fair values indicated below:
  As of December 31, 2024As of December 31, 2023
 Input
Level
Carrying
Amount
Fair ValueCarrying
Amount
Fair Value
  (Dollars in millions)
Long-term debt, excluding finance lease and other obligations
2$17,652 17,127 19,703 13,304 
Indemnifications related to the sale of the Latin American business(1)
387 84 86 86 
______________________________________________________________________
(1)Non-recurring fair value recorded in connection with the sale of our Latin American business was measured as of August 1, 2022. See Note 2—Divestitures of the Latin American, ILEC and EMEA Businesses for further details.
v3.25.0.1
Derivative Financial Instruments
12 Months Ended
Dec. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Derivative Financial Instruments
Note 15—Derivative Financial Instruments
 
From time to time, we use derivative financial instruments, primarily interest rate swaps, to manage our exposure to fluctuations in interest rates. Our primary objective in managing interest rate risk is to decrease the volatility of our earnings and cash flows affected by changes in the underlying rates. We have floating rate long-term debt (see Note 7—Long-Term Debt and Credit Facilities). These obligations expose us to variability in interest payments due to changes in interest rates. If interest rates increase, our interest expense increases. Conversely, if interest rates decrease, our interest expense also decreases. Through their expiration on June 30, 2022, we designated the interest rate swap agreements described below as cash flow hedges. Under these hedges, we received variable-rate amounts from a counterparty in exchange for us making fixed-rate payments over the lives of the agreements without exchange of the underlying notional amount. The change in the fair value of the interest rate swap agreements was reflected in accumulated other comprehensive loss and was subsequently reclassified into earnings in the period that the hedged transaction affected earnings by virtue of qualifying as effective cash flow hedges. We do not use derivative financial instruments for speculative purposes.
 
In 2019, we entered into variable-to-fixed interest rate swap agreements to hedge the interest on $4.0 billion notional amount of floating rate debt. All such hedges were expired as of December 31, 2022.

Amounts accumulated in accumulated other comprehensive loss related to derivatives were indirectly recognized in earnings as periodic settlement payments were made throughout the term of the swaps.

The amount of realized losses reclassified from accumulated other comprehensive loss to the statement of operations consists of the following (in millions):

Derivatives designated as hedging instruments
Cash flow hedging contracts
Year Ended December 31, 2022$22 

For the year ended December 31, 2022, amounts included in accumulated other comprehensive loss at the beginning of the period were reclassified into earnings upon the settlement of the cash flow hedging contracts on March 31, 2022 and June 30, 2022. During the year ended December 31, 2022, $19 million of net losses on the interest rate swaps have been reflected in our consolidated statements of operations upon settlement of the agreements in the first half of 2022.
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Income Taxes
12 Months Ended
Dec. 31, 2024
Income Tax Disclosure [Abstract]  
Income Taxes
Note 16—Income Taxes

The components of the income tax (benefit) expense are as follows:

 Years Ended December 31,
 202420232022
 (Dollars in millions)
Income tax (benefit) expense:   
Federal   
Current$87 838 
Deferred(251)(2)(332)
State   
Current(29)(6)283 
Deferred15 55 (191)
Foreign   
Current— 32 
Deferred(73)
Total income tax (benefit) expense$(175)61 557 
Income tax (benefit) expense was allocated as follows:
 Years Ended December 31,
 202420232022
 (Dollars in millions)
Income tax (benefit) expense in the consolidated statements of operations:   
Attributable to income$(175)61 557 
Stockholders' equity:   
Tax effect of the change in accumulated other comprehensive loss$26 (21)297 

The following is a reconciliation from the statutory federal income tax rate to our effective income tax rate:
 Years Ended December 31,
 202420232022
 (Percentage of pre-tax loss)
Statutory federal income tax rate21.0 %21.0 %21.0 %
State income taxes, net of federal income tax benefit4.1 %(0.2)%(8.8)%
Goodwill impairment— %(21.9)%(68.9)%
Change in liability for unrecognized tax position(16.8)%(0.1)%(0.2)%
Legislative changes to Global Intangible Low-Taxes Income ("GILTI")(1.2)%— %— %
Nondeductible executive stock compensation(4.9)%— %(0.1)%
Change in valuation allowance2.3 %1.3 %0.9 %
Net foreign income taxes(2.3)%— %3.0 %
Research and development credits6.5 %0.1 %1.1 %
Divestitures of businesses(1)
— %(0.4)%(4.0)%
Indemnification refunds11.2 %— %— %
Cancellation of debt income59.3 %— %— %
Other, net(3.1)%(0.4)%(0.2)%
Effective income tax rate76.1 %(0.6)%(56.2)%
_______________________________________________________________________________
(1)Includes GILTI incurred as a result of the sale of our Latin American business.

The effective tax rate for the year ended December 31, 2024 includes a $135 million favorable impact from the exclusion of cancellation of debt income ("CODI") under Section 108 of the Internal Revenue Code. The effective tax rate for the year ended December 31, 2023 includes a $2.2 billion unfavorable impact of a non-deductible goodwill impairment and a $137 million favorable impact as a result of utilizing available capital losses generated by the sale of our Latin American business in 2022. The effective tax rate for the year ended December 31, 2022 includes a $682 million unfavorable impact of non-deductible goodwill impairments and $128 million unfavorable impact related to incurring tax on GILTI as a result of the sale of our Latin American business.
The tax effects of temporary differences that gave rise to significant portions of the deferred tax assets and deferred tax liabilities were as follows:
 As of December 31,
 20242023
 (Dollars in millions)
Deferred tax assets  
Post-retirement and pension benefit costs$583 659 
Net operating loss carryforwards649 794 
Other employee benefits22 23 
Other744 511 
Gross deferred tax assets1,998 1,987 
Less valuation allowance(343)(399)
Net deferred tax assets1,655 1,588 
Deferred tax liabilities  
Property, plant and equipment, primarily due to depreciation differences(3,447)(3,332)
Goodwill and other intangible assets(1,002)(1,271)
Gross deferred tax liabilities(4,449)(4,603)
Net deferred tax liability$(2,794)(3,015)

Of the $2.8 billion and $3.0 billion net deferred tax liability at December 31, 2024 and 2023, respectively, $2.9 billion and $3.1 billion is reflected as a long-term liability and $96 million and $112 million is reflected as a net noncurrent deferred tax asset, in other, net on our consolidated balance sheets at December 31, 2024 and 2023, respectively.

Income taxes receivable as of December 31, 2024 and 2023, were $483 million and $273 million, respectively.

For U.S. tax purposes, the Company is required to recognize CODI on the difference between the adjusted issue price of the debt exchanged and the fair market value of the new debt issued. As a result of the 2023 Exchange Offers, the Company realized approximately $663 million of CODI for U.S. tax purposes. See Note 7—Long-Term Debt and Credit Facilities to our consolidated financial statements in Item 8 of Part II of this report for discussion of the 2023 Exchange Offers. The Internal Revenue Code provides that a debtor may exclude CODI from taxable income to the extent certain exceptions apply but must reduce certain of its tax attributes by the amount of the excluded CODI. For the year ended December 31, 2023, the Company excluded approximately $663 million of CODI from taxable income under Section 108 of the Code and, accordingly, the Company’s tax attributes have been reduced by a corresponding amount.

At December 31, 2024, we had federal NOLs of approximately $570 million, net of expirations from Section 382 limitations and uncertain tax positions, for U.S. federal income tax purposes. We expect to use substantially all of these NOLs to reduce our future federal tax liabilities, although the timing of that use will depend upon our future earnings and future tax circumstances. Our ability to use these NOLs is subject to annual limits imposed by Section 382. If unused, the NOLs will expire between 2027 and 2031.

At December 31, 2024, we had state NOLs of $12 billion (net of uncertain tax positions). Our ability to use these NOLs is subject to annual limits imposed by Section 382.

We establish valuation allowances when necessary to reduce the deferred tax assets to amounts we expect to realize. As of December 31, 2024, we established a valuation allowance of $343 million as it is more likely than not that this amount of NOLs will not be utilized prior to expiration. Our valuation allowance at December 31, 2024 and 2023 is primarily related to NOLs. This valuation allowance decreased by $56 million during 2024, primarily due to changes in our state NOL carryforwards.
A reconciliation of the change in our gross unrecognized tax benefits (excluding both interest and any related federal benefit) for the years ended December 31, 2024 and 2023 is as follows:
20242023
 (Dollars in millions)
Unrecognized tax benefits at beginning of year$1,424 1,318 
Decrease in tax positions of prior periods netted against deferred tax assets(4)(411)
Decrease in tax positions taken in the current year(64)(73)
Increase in tax positions taken in the prior year65 752 
Decrease due to payments/settlements— (1)
Decrease from the lapse of statute of limitations(158)(52)
Decrease related to divestitures of businesses— (109)
Unrecognized tax benefits at end of year$1,263 1,424 

As of December 31, 2024, the total amount of unrecognized tax benefits that, if recognized, would impact the effective income tax rate was $404 million. The unrecognized tax benefits also include tax positions that, if recognized, would result in adjustments to other tax accounts, primarily deferred taxes, which would not impact the effective tax rate but could impact cash tax amounts payable to taxing authorities.

Our policy is to reflect interest expense associated with unrecognized tax benefits in income tax (benefit) expense. We had accrued interest (presented before related tax benefits) of approximately $217 million and $100 million at December 31, 2024 and 2023, respectively.

We, or at least one of our subsidiaries, file income tax returns in the U.S. federal jurisdiction and various states and foreign jurisdictions. With few exceptions, we are no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by tax authorities for years before 2004. The Internal Revenue Service and state and local taxing authorities reserve the right to audit any period where NOLs are available.

Based on our current assessment of various factors, including (i) the potential outcomes of these ongoing examinations, (ii) the expiration of statute of limitations for specific jurisdictions, (iii) the negotiated settlement of certain disputed issues, and (iv) the administrative practices of applicable taxing jurisdictions, it is reasonably possible that the related unrecognized tax benefits for uncertain tax positions previously taken may decrease by up to $395 million within the next 12 months. The actual amount of such decrease, if any, will depend on several future developments and events, many of which are outside our control.

In August 2022, the Inflation Reduction Act was signed into law and which, among other things, implemented a corporate alternative minimum tax (“CAMT”) on adjusted financial statement income effective for tax periods occurring after December 31, 2022. The CAMT had no material impact on our financial results as of December 31, 2024. In addition, in 2021, the Organization for Economic Co-operation and Development (“OECD”) issued Pillar Two model rules introducing a new global minimum corporate tax of 15% and the OECD and the majority of its participating countries continue to work toward the enactment of such tax. While the U.S. has not adopted Pillar Two legislation, various other governments around the world have enacted such legislation that is effective for tax periods after December 31, 2023. These global minimum tax rules have increased our administrative and compliance burdens, but the impact to our financial statements for the year ended December 31, 2024 was immaterial. We anticipate further legislative activity and administrative guidance throughout 2025 and continue to monitor evolving global tax legislation.
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Segment Information
12 Months Ended
Dec. 31, 2024
Segment Reporting [Abstract]  
Segment Information
Note 17—Segment Information

Our business is managed based on customer-facing sales channels to align with how we support our customers. Our chief operating decision maker ("CODM"), who is the CEO of the Company, makes decisions and assesses the performance of the Company reviewing two segments: Business and Mass Markets. Our reportable segments have not been aggregated.
Under our Business segment we provide products and services to meet the needs of our enterprise and wholesale customers under five distinct sales channels: Large Enterprise, Mid-Market Enterprise, Public Sector, Wholesale and International and Other. For Business segment revenue, we report the following product categories: Grow, Nurture, Harvest and Other, in each case through the sales channels outlined above. The Business segment included the results of our Latin American, ILEC and EMEA businesses prior to their sales on August 1, 2022, October 3, 2022 and November 1, 2023, respectively.

Under our Mass Markets Segment, we provide products and services to residential and small business customers. We report the following product categories: Fiber Broadband, Other Broadband and Voice and Other. The Mass Markets segment included the results of our ILEC business prior to its sale on October 3, 2022.

See detailed descriptions of these product and service categories in Note 4—Revenue Recognition.

As described in more detail below, our segments are managed based on the direct costs of providing services to their customers and directly associated headcount and non-headcount operating expenses. Shared costs are managed separately and included in "other unallocated expense" in the table included below "—Revenue and Expenses." As referenced above, we reclassified certain prior period amounts to conform to the current period presentation. See Note 1—Background and Summary of Significant Accounting Policies for additional detail on these changes. The CODM uses adjusted EBITDA as the key indicator in assessing performance and allocating resources for both the Business segment and Mass Markets segment.

The following tables summarize our segment results for 2024, 2023 and 2022 based on the segment categorization we were operating under at December 31, 2024.
Year Ended December 31, 2024
BusinessMass Markets
(Dollars in millions)
Segment revenue$10,363 2,745 
Segment expense
Cost of services and products3,063 69 
Headcount costs1,237 651 
Non-headcount costs652 572 
Total expense4,952 1,292 
Total segment adjusted EBITDA$5,411 1,453 

Year Ended December 31, 2023
BusinessMass Markets
(Dollars in millions)
Segment revenue$11,583 2,974 
Segment expense
Cost of services and products3,248 79 
Headcount costs1,473 768 
Non-headcount costs807 610 
Total expense5,528 1,457 
Total segment adjusted EBITDA$6,055 1,517 
Year Ended December 31, 2022
BusinessMass Markets
(Dollars in millions)
Segment revenue$13,099 4,379 
Segment expense
Cost of services and products3,436 121 
Headcount costs1,584 945 
Non-headcount costs879 703 
Total expense5,899 1,769 
Total segment adjusted EBITDA$7,200 2,610 

Revenue and Expenses

Our segment revenue includes all revenue from our two segments as described in more detail above. Our segment revenue is based upon each customer's classification. We report our segment revenue based upon all services provided to that segment's customers. Our segment expenses include (i) specific cost of service expenses incurred as a direct result of providing services and products to segment customers, (ii) headcount costs, which primarily includes salaries, commissions, and group insurance, and (iii) non-headcount costs, which primarily includes legal and other professional fees, marketing and advertising expenses, other network related expenses, and external commissions. We have not allocated assets or debt to specific segments.

The following items are excluded from our segment results, because they are centrally managed and not monitored by or reported to our chief operating decision maker by segment:

network expenses not incurred as a direct result of providing services and products to segment customers and centrally managed expenses such as Finance, Human Resources, Legal, Marketing, Product Management and IT, all of which are reported as "other unallocated expense" in the table below;

depreciation and amortization expense;

goodwill or other impairments;

interest expense;

stock-based compensation; and

other income and expense items.
The following table reconciles total segment adjusted EBITDA to net loss for the years ended December 31, 2024, 2023 and 2022:
 Years Ended December 31,
 202420232022
 (Dollars in millions)
Total segment adjusted EBITDA$6,864 7,572 9,810 
Depreciation and amortization(2,956)(2,985)(3,239)
Goodwill impairment— (10,693)(3,271)
Other unallocated expense(3,419)(3,426)(3,107)
Stock-based compensation(29)(52)(98)
Operating income (loss)460 (9,584)95 
Total other expense, net(690)(653)(1,086)
Loss before income taxes(230)(10,237)(991)
Income tax (benefit) expense(175)61 557 
Net loss$(55)(10,298)(1,548)
    
We do not have any single customer that comprises more than 10% of our consolidated total operating revenue.

The assets we hold outside of the U.S. represent less than 10% of our total assets. Revenue from sources outside of the U.S. comprises less than 10% of our total operating revenue.
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Commitments, Contingencies and Other Items
12 Months Ended
Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract]  
Commitments, Contingencies and Other Items
Note 18—Commitments, Contingencies and Other Items

We are subject to various claims, legal proceedings and other contingent liabilities, including the matters described below, which individually or in the aggregate could materially affect our financial condition, future results of operations or cash flows.

We review our litigation accrual liabilities on a quarterly basis, but in accordance with applicable accounting guidelines only establish accrual liabilities when losses are deemed probable and reasonably estimable and only revise previously established accrual liabilities when warranted by changes in circumstances, in each case based on then-available information. As such, as of any given date we could have exposure to losses under proceedings as to which no liability has been accrued or as to which the accrued liability is inadequate. Subject to these limitations, at December 31, 2024 and December 31, 2023, we had accrued $78 million and $84 million, respectively, in the aggregate for our litigation and non-income tax contingencies, which is included in Other under Current Liabilities or Other under Deferred Credits and Other Liabilities in our consolidated balance sheets as of such dates. We cannot at this time estimate the reasonably possible loss or range of loss, if any, in excess of our $78 million accrual due to the inherent uncertainties and speculative nature of contested proceedings. The establishment of an accrual does not mean that actual funds have been set aside to satisfy a given contingency. Thus, the resolution of a particular contingency for the amount accrued could have no effect on our results of operations but nonetheless could have an adverse effect on our cash flows.

In this Note, a reference to a "putative" class action means a class has been alleged, but not certified, in that matter.
Principal Proceedings

Houser Shareholder Suit

Lumen and certain of its current and former officers and directors were named as defendants in a putative shareholder class action lawsuit filed on June 12, 2018 in the Boulder County District Court of the state of Colorado, captioned Houser et al. v. CenturyLink, et al. The original complaint asserted claims on behalf of a putative class of former Level 3 Communications, Inc. ("Level 3") shareholders who became CenturyLink, Inc. shareholders as a result of our acquisition of Level 3. It alleged that the proxy statement provided to the Level 3 shareholders failed to disclose various material information, including information about strategic revenue, customer loss rates, and customer account issues, among other items. The original complaint sought damages, costs and fees, rescission, rescissory damages, and other equitable relief. In May 2020, the court dismissed the original complaint. The plaintiffs appealed that decision, and in March 2022, the appellate court affirmed the district court's order in part and reversed it in part. It then remanded the case to the district court for further proceedings. The plaintiffs filed an amended complaint asserting the same claims and prayer for relief, and we filed a motion to dismiss. The court granted our motion to dismiss in May 2023 and the plaintiffs appealed that dismissal. In August 2024, the appellate court set aside the trial court's dismissal. In October 2024, we filed a petition with the Colorado Supreme Court seeking a review of the appellate court's decision.

Quantum Fiber Disclosure Litigation

In re Lumen Technologies, Inc. Securities Litigation. On March 3, 2023, a purported shareholder of Lumen filed a putative class action complaint originally captioned Voigt et al. v. Lumen Technologies, et al. (now captioned In re Lumen Technologies, Inc. Securities Litigation, Case 3:23-cv-00286-TAD-KDM), in the U.S. District Court for the Western District of Louisiana. The complaint alleges that Lumen and certain of its current and former officers violated the federal securities laws by omitting or misstating material information related to Lumen’s expansion of its Quantum Fiber business. The court appointed a lead plaintiff who filed an amended complaint, seeking money damages, attorneys’ fees and costs, and other relief. On October 30, 2024, the court granted the motion to dismiss we filed against the amended complaint. The plaintiff filed and then withdrew an appeal.

Associated Derivative Litigation. On August 5, 2024, a purported shareholder of Lumen filed a shareholder derivative complaint on behalf of Lumen captioned Slack v. Allen, et al., Case 3:24-cv-01043-TAD-KMM, in the U.S. District Court for the Western District of Louisiana. The complaint alleges claims for breach of fiduciary duty, violations of the federal securities laws, and other causes of action against current and former officers and directors of Lumen allegedly responsible for omitting or misstating material information related to Lumen’s expansion of its Quantum Fiber business. The complaint seeks money damages, attorneys’ fees and costs, and other relief. Substantially similar derivative cases have been filed as follows: (i) on August 20, 2024, Capistrano v. Storey, et al., Case 3:24-cv-01130-TAD-KMM, in the U.S. District Court for the Western District of Louisiana; and on (ii) October 11, 2024, Ostrow v. Johnson, et al., Case 2024-3706, in the 4th Judicial District Court for the Parish of Ouachita, State of Louisiana, subsequently removed on October 11, 2024, to the U.S. District Court for the Western District of Louisiana as Case 3:24-cv-01399-TAD-KMM. The plaintiff in the Ostrow case voluntarily dismissed that proceeding.

Lead-Sheathed Cable Litigation

Disclosure Litigation. In re Lumen Technologies, Inc. Securities Litigation II. On September 15, 2023, a purported shareholder of Lumen filed a putative class action complaint originally captioned Glauber, et al. v. Lumen Technologies (now captioned In re Lumen Technologies, Inc. Securities Litigation II, Case 3:23-cv-01290), in the U.S. District Court for the Western District of Louisiana. The complaint alleged that Lumen and certain of its current and former officers violated the federal securities laws by omitting or misstating material information related to Lumen’s responsibility for environmental degradation allegedly caused by the lead sheathing of certain telecommunications cables. The court appointed lead plaintiffs who filed an amended complaint, seeking money damages, attorneys’ fees and costs, and other relief.
Derivative Litigation. On June 11, 2024, a purported shareholder of Lumen filed a shareholder derivative complaint on behalf of Lumen captioned Brown v. Johnson, et al., Case 3:24-cv-00798-TAD-KDM, in the U.S. District Court for the Western District of Louisiana. The complaint alleges claims for breach of fiduciary duty, violations of the federal securities laws, and other causes of action against current and former officers and directors of Lumen relating to placement or presence of lead-sheathed telecommunications cables. The complaint seeks damages, injunctive relief, and attorneys' fees. Substantially similar derivative cases have been filed as follows: (i) on August 9, 2024, Pourarian v. Johnson, et al., Case 3:24-cv-01071-TAD-KMM in the U.S. District Court for the Western District of Louisiana; (ii) on September 9, 2024, Capistrano v. Johnson, et al., Case 3:24-cv-01234-TAD-KMM in the U.S. District Court for the Western District of Louisiana; (iii) on September 16, 2024, Vogel v. Perry, et al., Case 2024-3360 in the 4th Judicial District Court for the Parish of Ouachita, State of Louisiana, subsequently removed on September 17, 2024 to the U.S. District Court for the Western District of Louisiana as Case 3:24-cv-01274-TAD-KMM; and (iv) on September 25, 2024, Murray v. Allen, et al., Case 3:24-cv-01320 in the U.S. District Court for the Western District of Louisiana.

Environmental Litigation

Parish of St. Mary. On July 9, 2024, a putative class action complaint was filed in the 16th Judicial District Court for the Parish of St. Mary, State of Louisiana, Case 138575, asserting claims on behalf of all parishes, municipalities, and citizens owning real properties in the State of Louisiana that have been affected by lead-sheathed telecommunications cables installed by AT&T and Lumen or their predecessors. The complaint seeks damages and injunctive relief under Louisiana state law. The case was removed to the United States District Court Western District of Louisiana Lafayette Division, Case 6:24-CV-01001-RRS-DJA. On December 6, 2024, the plaintiffs voluntarily dismissed the class action complaint without prejudice. On December 13, 2024, St. Mary’s Parish along with other parishes, municipalities, and two individuals served a notice of intent to file citizen suit under the Louisiana Environmental Quality Act, asserting claims identical to the class action which the plaintiffs voluntarily dismissed.

Blum. On November 6, 2023, a putative class action complaint was filed in the 16th Judicial District Court for the Parish of St. Mary, State of Louisiana, Case 137935, asserting claims on behalf of all citizens owning real properties in the State of Louisiana that have been affected by lead-sheathed telecommunications cables installed by AT&T, BellSouth, Verizon, and Lumen or their predecessors. The complaint seeks damages and injunctive relief under Louisiana state law. The case has been removed to Federal Court in the United States District Court Western District of Louisiana Lafayette Division, Case 6:23-CV-01748.

State Tax Suits

Since 2012, a number of Missouri municipalities have asserted claims in the Circuit Court of St. Louis County, Missouri, alleging that we and several of our subsidiaries have underpaid taxes. These municipalities are seeking, among other things, declaratory relief regarding the application of business license and gross receipts taxes and back taxes from 2007 to the present, plus penalties and interest. In a February 2017 ruling in connection with one of these pending cases, the court entered an order awarding the plaintiffs $4 million and broadening the tax base on a going-forward basis. We appealed that decision to the Missouri Supreme Court. In December 2019, it affirmed the circuit court's order in some respects and reversed it in others, remanding the case to the circuit court for further proceedings. The Missouri Supreme Court's decision reduced our exposure in the case. In a June 2021 ruling in one of the pending cases, another trial court awarded the cities of Columbia and Joplin approximately $55 million, plus statutory interest. On appeal, the Missouri Court of Appeals affirmed in part and reversed in part, vacated the judgment and remanded the case to the trial court with instructions for further proceedings consistent with the Missouri Supreme Court's decision.
FCRA Litigation

In November 2014, a putative class action complaint captioned Bultemeyer v. CenturyLink, Inc. was filed in the United States District Court for the District of Arizona, Case CV-14-02530-PHX-SPL, alleging violations of the Fair Credit Reporting Act (the "FCRA"). In February 2017, the case was dismissed for lack of standing. The plaintiff appealed and the 9th Circuit reversed and remanded. Class certification was contested and ultimately granted in 2023. The 9th Circuit denied Lumen’s request to appeal the class certification ruling. A jury trial was conducted in September 2024. The jury found that CenturyLink willfully violated the FCRA and awarded each class member $500 for statutory damages and $2,000 for punitive damages. If the verdict is not set aside in connection with post-trial motion practice, Lumen will appeal to the 9th Circuit. We have not accrued a contingent liability for this matter. While liability is possible, we have not determined it to be probable, and damages exposure, if any, is uncertain.

Billing Practices Suits

In June 2017, a former employee filed an employment lawsuit against us claiming that she was wrongfully terminated for alleging that we charged some of our retail customers for products and services they did not authorize. Thereafter, based in part on the allegations made by the former employee, several legal proceedings were filed, including consumer class actions in federal and state courts, a series of securities investor class actions in federal courts and several shareholder derivative actions in federal and Louisiana state courts. The derivative cases were brought on behalf of CenturyLink, Inc. against certain current and former officers and directors of the Company and seek damages for alleged breaches of fiduciary duties. We have settled the consumer and securities investor class actions and the derivative actions.

We have engaged in discussions regarding related claims with a number of state attorneys general, and have entered into agreements settling certain of the consumer practices claims asserted by several state attorneys general.

December 2018 Outage Proceedings

We experienced an outage on one of our transport networks that impacted voice, IP, 911, and transport services for some of our customers between the 27th and 29th of December 2018. We believe that the outage was caused by a faulty network management card from a third-party equipment vendor.

The FCC and four states initiated formal investigations. In November 2020, following the FCC's release of a public report on the outage, we negotiated a settlement which was disclosed by the FCC in December 2020. The amount of the settlement was not material to our financial statements.

In December 2020, the Staff of the Washington Utilities and Transportation Commission ("WUTC") filed a complaint against us based on the December 2018 outage, seeking penalties of approximately $7 million for alleged violations of Washington regulations and laws. The Washington Attorney General's office sought penalties of $27 million. Following trial, the WUTC issued an order imposing a penalty of approximately $1 million. That decision is now pending appeal to the Washington State of Court of Appeals.

Latin American Tax Litigation and Claims

In connection with the 2022 divestiture of our Latin American business, the purchaser assumed responsibility for the Brazilian tax claims described in our prior periodic reports filed with the SEC. We agreed to indemnify the purchaser for amounts paid with respect to the Brazilian tax claims. The value of this indemnification and others associated with the Latin American business divestiture are included in the indemnification amount as disclosed in Note 14—Fair Value of Financial Instruments.
Huawei Network Deployment Investigations

Lumen has received requests from the following federal agencies for information relating to the use of equipment manufactured by Huawei Technologies Company ("Huawei") in Lumen’s networks.

DOJ. Lumen has received a civil investigative demand from the U.S. Department of Justice in the course of a False Claims Act investigation alleging that Lumen Technologies, Inc. and Lumen Technologies Government Solutions, Inc. failed to comply with certain specified requirements in federal contracts concerning their use of Huawei equipment. 

FCC. The FCC’s Enforcement Bureau issued a Letter of Inquiry to Lumen Technologies, Inc. regarding its written certifications to the FCC that Lumen has complied with FCC rules governing the use of resources derived from the High Cost Program, Lifeline Program, Rural Health Care Program, E-Rate Program, Emergency Broadband Benefit Program, and the Affordable Connectivity Program. Under these programs, federal funds may not be used to facilitate the deployment or maintenance of equipment or services provided by Huawei, a company that the FCC has determined poses a national security threat to the integrity of U.S. communications networks or the communications supply chain.

Team Telecom. The Committee for the Assessment of Foreign Participation in the United States Telecommunications Service Sector (comprised of the U.S. Attorney General, and the Secretaries of the Department of Homeland Security, and the Department of Defense), commonly referred to as Team Telecom, issued questions and requests for information relating to Lumen’s FCC licenses and its use of Huawei equipment.

Marshall Fire Litigation

On December 30, 2021, a wildfire referred to as the Marshall Fire ignited near Boulder, Colorado. The Marshall Fire killed two people, and it burned thousands of acres, including entire neighborhoods. Approximately 300 lawsuits naming various defendants and asserting various claims for relief have been filed. To date, three of those name our affiliate Qwest Corporation as being at fault: Allstate Fire and Casualty Insurance Company, et al., v. Qwest Corp., et al., Case 2023-cv-3048, and Wallace, et al. v. Qwest Corp., et al., Case 2023-cv-30488, both of which have been consolidated with Kupfner et al v Public Service Company of Colorado, et al., Case 2022-cv-30195. The consolidated proceeding is pending in Colorado District Court, Boulder, Colorado, Preliminary estimates of potential damage claims exceed $2 billion.

911 Surcharge

In June 2021, the Company was served with a complaint filed in the Santa Fe County District Court by Phone Recovery Services, LLC (“PRS”), acting on behalf of the State of New Mexico. The complaint claims Qwest Corporation and CenturyTel of the Southwest have violated the New Mexico Fraud Against Taxpayers Act since 2004 by failing to bill, collect and remit certain 911 surcharges from customers. Through pre-trial proceedings, the Court narrowed the issues to be resolved by jury. On August 21, 2024, a jury decided the remaining issues, and consequently all claims asserted, in Lumen's favor. The plaintiff has filed a Notice of Appeal and Lumen submitted a cross-appeal as to the original motion to dismiss and motion for summary judgment.

Other Proceedings, Disputes and Contingencies

From time to time, we are involved in other proceedings incidental to our business, including patent infringement allegations, regulatory hearings relating primarily to our rates or services, actions relating to employee claims, tax issues, or environmental law issues, grievance hearings before labor regulatory agencies, miscellaneous third-party tort actions, or commercial disputes.

We are currently defending several patent infringement lawsuits asserted against us by non-practicing entities which are seeking substantial recoveries. These cases have progressed to various stages and one or more may go to trial within the next twelve months if they are not otherwise resolved. Where applicable, we are seeking full or partial indemnification from our vendors and suppliers.
We are subject to various foreign, federal, state and local environmental protection and health and safety laws. From time to time, we are subject to judicial and administrative proceedings brought by various governmental authorities under these laws. Several such proceedings are currently pending, but none is reasonably expected to exceed $300,000 in fines and penalties. In addition, in the past we acquired companies that had installed lead-sheathed cables several decades earlier, or had operated certain manufacturing companies in the first part of the 1900s. Under applicable environmental laws, we could be named as a potentially responsible party for a share of the remediation of environmental conditions arising from the historical operations of our predecessors.

The outcomes of these other proceedings described under this heading are not predictable. However, based on current circumstances, we do not believe that the ultimate resolution of these other proceedings, after considering available defenses and any insurance coverage or indemnification rights, will have a material adverse effect on us.

The matters listed in this Note do not reflect all our contingencies. The ultimate outcome of the above-described matters may differ materially from the outcomes anticipated, estimated, projected or implied by us in certain of our statements appearing above in this Note, and proceedings we currently consider immaterial may ultimately affect us materially.

Right-of-Way

At December 31, 2024, our future rental commitments and Right-of-Way ("ROW") agreements were as follows:
 (Dollars in millions)
2025$204 
202672 
202771 
202867 
202954 
2030 and thereafter717 
Total future minimum payments$1,185 

Purchase Commitments

We have several commitments to a variety of vendors for services to be used in the ordinary course of business totaling $2.4 billion at December 31, 2024. Of this amount, we and our subsidiaries expect to purchase $795 million in 2025, $1.2 billion in 2026 through 2027, $256 million in 2028 through 2029 and $164 million in 2030 and thereafter. These amounts do not represent our entire anticipated purchases in the future, but represent only those items for which we were contractually committed as of December 31, 2024.
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Other Financial Information
12 Months Ended
Dec. 31, 2024
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Other Financial Information
Note 19—Other Financial Information

Other Current Assets

The following table presents details of other current assets reflected in our consolidated balance sheets:
 As of December 31,
 20242023
 (Dollars in millions)
Prepaid expenses$372 395 
Income tax receivable483 273 
Materials, supplies and inventory146 209 
Contract assets16 19 
Contract acquisition costs102 107 
Contract fulfillment costs109 102 
Assets held for sale
24 104 
Other22 14 
Total other current assets
$1,274 1,223 

Current Liabilities

Included in accounts payable at December 31, 2024 and 2023 were $248 million and $274 million, respectively, associated with capital expenditures.

Other Income (Expense), Net
Other income (expense), net reflects certain items not directly related to our core operations, including gains and losses from non-operating asset dispositions. For the year ended December 31, 2024, Other income (expense), net included a gain on sale of investment of $205 million.
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Repurchases of Lumen Common Stock
12 Months Ended
Dec. 31, 2024
Equity [Abstract]  
Repurchases of Lumen Common Stock
Note 20—Repurchases of Lumen Common Stock

During the fourth quarter of 2022, our Board of Directors authorized a two-year program to repurchase up to an aggregate of $1.5 billion of our outstanding common stock, which expired on November 2, 2024. During the years ended December 31, 2024 and 2023, we did not repurchase any shares of our outstanding common stock under this program. During the year ended December 31, 2022, we repurchased under this program 33 million shares of our outstanding common stock in the open market for an aggregate market price of $200 million, or an average purchase price of $6.07 per share. All repurchased common stock has been retired. As a result, common stock and additional paid-in capital were reduced as of December 31, 2022 by $33 million and $167 million, respectively.
Note 23—Dividends

The declaration of dividends is solely at the discretion of our Board of Directors.

On November 2, 2022, we announced that our Board had terminated our quarterly cash dividend program; as a result no dividends were declared and paid in 2023 or 2024.

Our Board declared the following dividends payable in 2022:
Date DeclaredRecord DateDividend
Per Share
Total AmountPayment Date
   (in millions) 
August 18, 20228/30/2022$0.25 $253 9/9/2022
May 19, 20225/31/20220.25 253 6/10/2022
February 24, 20223/8/20220.25 253 3/18/2022
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Accumulated Other Comprehensive Loss
12 Months Ended
Dec. 31, 2024
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Accumulated Other Comprehensive Loss
Note 21—Accumulated Other Comprehensive Loss

Information Relating to 2024

The table below summarizes changes in accumulated other comprehensive loss recorded on our consolidated balance sheet by component for the year ended December 31, 2024:

Pension
Plans
Post-Retirement
Benefit
Plans
Foreign Currency
Translation
Adjustment
and Other
Total
 (Dollars in millions)
Balance at December 31, 2023$(1,045)276 (41)(810)
Other comprehensive (loss) income before reclassifications(34)63 30 
Amounts reclassified from accumulated other comprehensive income (loss)76 (19)— 57 
Net current-period other comprehensive income42 44 87 
Balance at December 31, 2024$(1,003)320 (40)(723)

The table below presents further information about our reclassifications out of accumulated other comprehensive loss by component for the year ended December 31, 2024:

Year Ended December 31, 2024(Decrease) Increase
in Net Loss
Affected Line Item in Consolidated Statement of Operations
(Dollars in millions) 
Amortization of pension & post-retirement plans (1)
  
Net actuarial loss$91Other income (expense), net
Prior service cost(15)Other income (expense), net
Total before tax76  
Income tax benefit(19)Income tax (benefit) expense
Net of tax$57  
________________________________________________________________________
(1)See Note 11—Employee Benefits for additional information on our net periodic benefit (expense) income related to our pension and post-retirement plans.
Information Relating to 2023

The table below summarizes changes in accumulated other comprehensive loss recorded on our consolidated balance sheet by component for the year ended December 31, 2023:
Pension
Plans
Post-Retirement
Benefit
Plans
Foreign Currency
Translation
Adjustment
and Other
Total
 (Dollars in millions)
Balance at December 31, 2022$(985)308 (422)(1,099)
Other comprehensive loss before reclassifications(110)(11)(1)(122)
Amounts reclassified from accumulated other comprehensive income (loss)50 (21)382 411 
Net current-period other comprehensive (loss) income(60)(32)381 289 
Balance at December 31, 2023$(1,045)276 (41)(810)

The table below presents further information about our reclassifications out of accumulated other comprehensive loss by component for the year ended December 31, 2023:
Year Ended December 31, 2023(Decrease) Increase
in Net Loss
Affected Line Item in Consolidated Statement of Operations
 (Dollars in millions) 
Amortization of pension & post-retirement plans (1)
Net actuarial loss$82 Other income (expense), net
Prior service cost
(15)Other income (expense), net
Total before tax67  
Income tax benefit(16)Income tax (benefit) expense
Net of tax$51  
Year Ended December 31, 2023Reclassification out of Accumulated Other Comprehensive LossAffected line item in Consolidated Balance Sheets and Consolidated Statement of Operations
Reclassification of realized loss on foreign currency translation to valuation allowance within assets held for sale(2)
$389 
Assets held for sale
Reclassification of realized loss on foreign currency translation to loss on sale of business(3)
(7)
Net loss (gain) on sale of businesses
Subtotal reclassification of realized loss on foreign currency
382 
Reclassification of net actuarial loss to valuation allowance within assets held for sale(2)
(24)
Assets held for sale
Reclassification of net actuarial gain to loss on sale of business(3)
Net loss (gain) on sale of businesses
Subtotal reclassification of net actuarial loss
(22)
Income tax benefit
Income tax expense
Net of tax$360 
________________________________________________________________________
(1)See Note 11—Employee Benefits for additional information on our net periodic benefit (expense) income related to our pension and post-retirement plans.
(2)Recognized in net income through net loss (gain) on sale of business for the year ended December 31, 2022 and included in our valuation allowance in assets held for sale as of December 31, 2022.
(3)(Decrease) increase to net loss for the year ended December 31, 2023.
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Labor Union Contracts
12 Months Ended
Dec. 31, 2024
Risks and Uncertainties [Abstract]  
Labor Union Contracts
Note 22—Labor Union Contracts

As of December 31, 2024, approximately 21% of our employees were represented by the Communications Workers of America ("CWA") or the International Brotherhood of Electrical Workers ("IBEW"). Approximately 10% of our represented employees are subject to collective bargaining agreements that are scheduled to expire over the 12 month period ending December 31, 2025.
v3.25.0.1
Dividends
12 Months Ended
Dec. 31, 2024
Dividends, Common Stock [Abstract]  
Dividends
Note 20—Repurchases of Lumen Common Stock

During the fourth quarter of 2022, our Board of Directors authorized a two-year program to repurchase up to an aggregate of $1.5 billion of our outstanding common stock, which expired on November 2, 2024. During the years ended December 31, 2024 and 2023, we did not repurchase any shares of our outstanding common stock under this program. During the year ended December 31, 2022, we repurchased under this program 33 million shares of our outstanding common stock in the open market for an aggregate market price of $200 million, or an average purchase price of $6.07 per share. All repurchased common stock has been retired. As a result, common stock and additional paid-in capital were reduced as of December 31, 2022 by $33 million and $167 million, respectively.
Note 23—Dividends

The declaration of dividends is solely at the discretion of our Board of Directors.

On November 2, 2022, we announced that our Board had terminated our quarterly cash dividend program; as a result no dividends were declared and paid in 2023 or 2024.

Our Board declared the following dividends payable in 2022:
Date DeclaredRecord DateDividend
Per Share
Total AmountPayment Date
   (in millions) 
August 18, 20228/30/2022$0.25 $253 9/9/2022
May 19, 20225/31/20220.25 253 6/10/2022
February 24, 20223/8/20220.25 253 3/18/2022
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Pay vs Performance Disclosure - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Pay vs Performance Disclosure      
Net loss $ (55) $ (10,298) $ (1,548)
v3.25.0.1
Insider Trading Arrangements
3 Months Ended
Dec. 31, 2024
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
v3.25.0.1
Insider Trading Policies and Procedures
12 Months Ended
Dec. 31, 2024
Insider Trading Policies and Procedures [Line Items]  
Insider Trading Policies and Procedures Adopted true
v3.25.0.1
Cybersecurity Risk Management and Strategy Disclosure
12 Months Ended
Dec. 31, 2024
Cybersecurity Risk Management, Strategy, and Governance [Line Items]  
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]
As a technology and communications company that globally transmits large amounts of information over our networks, we recognize the critical importance of maintaining the security and integrity of information and systems under our control. We view cybersecurity risk as one of our principal enterprise-wide risks, subject to control and monitoring at various levels of management throughout the Company. We dedicate significant resources towards programs designed to identify, assess, manage, mitigate and respond to cybersecurity threats.

As described in Item 1A “Risk Factors,” several features of our operations heighten our susceptibility to cyber-attacks, including (i) our material reliance on systems owned, operated or controlled by unaffiliated third-party operators and (ii) our processing and storage of large amounts of sensitive customer data. Cyber-attacks on our systems may be initiated by a wide variety of intruders, including employees, cyber-criminals, nation state actors and other advanced persistent threat actors, and may include attempts by outside parties to gain access to sensitive data that is stored in or transmitted across our network. Cyber-attacks can take many forms, including computer hackings, computer viruses, ransomware, worms or other destructive or disruptive software, denial of service attacks, or other malicious activities.

To identify, assess and mitigate cybersecurity risk, we have implemented a global information security management program that includes administrative, technical, and physical safeguards. This program seeks to identify, detect, protect and respond to threats to our information systems. Our security operations center provides advanced threat detection and response capabilities. We maintain an insider threat program to detect, investigate and mitigate insider threat risks to Lumen assets, data, services and personnel globally.

Our cybersecurity and privacy policies encompass information security, incident response procedures, and vendor management. Our risk management team works closely with our information technology, privacy, product, and operations departments to continuously evaluate emerging cyber risk. We monitor existing or proposed cybersecurity and privacy laws, regulations and guidance that are or may be applicable to us in the regions where we operate, including in the European Union and the United Kingdom where we are subject to the GDPR, as well as various other laws governing privacy rights, data protection and cybersecurity in other regions. As a U.S. government contractor, we are required to comply with extensive governmental regulations and standards regarding cyber security.

We periodically engage both internal and external auditors and consultants to assess and enhance our program. These independent external auditors and consultants are accredited under various information security standards, including those administered by the International Organization for Standardization and the PCI Security Standards Council. These engagements typically include penetration testing, third-party certifications, compliance assessments, audits, and assessments of vulnerabilities and emerging threats. We also periodically deploy our Internal Audit processes to conduct additional reviews and assessments. We also mutually exchange threat intelligence with government agencies, cyber analysis centers and cybersecurity associations.

As noted elsewhere in this annual report, we are materially reliant on a variety of third-party service providers to operate our business, which exposes us to the risk of cyber incidents impacting those providers’ systems. We have a vendor risk management program that assesses, manages and oversees risks associated with third-party service providers who have access to our data and systems. We maintain ongoing monitoring to ensure their compliance with our cybersecurity standards.

Despite our efforts to prevent security incidents, (i) some of these attacks have resulted in security incidents (although thus far we do not believe that any of these incidents has resulted in a material adverse effect on our operating results or financial condition) and (ii) future security incidents are likely (some of which could have a material adverse effect on our operating results or financial condition). See Item 1A “Risk Factors” for a further discussion of cybersecurity risks.
We maintain an Incident Response Playbook that provides a set of guidelines for our stakeholders to follow when handling any data incident. This playbook describes how we assess incidents and how our security team shares information about such incidents with others at Lumen, including senior leadership and, if warranted, with some or all members of our Board of Directors. These escalation provisions, together with our disclosure controls and procedures, are designed to ensure that appropriate representatives throughout the Company are available to assess how to respond to such incidents and make any necessary public notifications.

Our Cybersecurity Incident Response Team (“CIRT”) is responsible for detecting and coordinating responses to all security incidents. This team regularly assesses its communication plan to confirm that its members can be alerted quickly in the event of an actual crisis and meet as a team to discuss response options. The CIRT also addresses each incident, unless it determines that an incident is sufficiently serious. In those instances, it will notify our Cyber Security Watch Team (“CSWAT”), which is responsible for addressing cybersecurity incidents that raise more significant risks.

Our CSWAT is comprised of senior IT, operations, risk, legal and compliance leaders across business segments. In addition to addressing our more significant cyber incidents, the CSWAT manages risks from matters related to business continuity, including risks posed by cybersecurity threats, and implements controls to mitigate such operational risks. Among other processes, this team reviews our programs and processes related to information security, third-party risk, vendor management, facilities, unplanned downtime, business disruption, business continuity and disaster recovery.
Cybersecurity Risk Management Processes Integrated [Flag] true
Cybersecurity Risk Management Processes Integrated [Text Block]
As a technology and communications company that globally transmits large amounts of information over our networks, we recognize the critical importance of maintaining the security and integrity of information and systems under our control. We view cybersecurity risk as one of our principal enterprise-wide risks, subject to control and monitoring at various levels of management throughout the Company. We dedicate significant resources towards programs designed to identify, assess, manage, mitigate and respond to cybersecurity threats.

As described in Item 1A “Risk Factors,” several features of our operations heighten our susceptibility to cyber-attacks, including (i) our material reliance on systems owned, operated or controlled by unaffiliated third-party operators and (ii) our processing and storage of large amounts of sensitive customer data. Cyber-attacks on our systems may be initiated by a wide variety of intruders, including employees, cyber-criminals, nation state actors and other advanced persistent threat actors, and may include attempts by outside parties to gain access to sensitive data that is stored in or transmitted across our network. Cyber-attacks can take many forms, including computer hackings, computer viruses, ransomware, worms or other destructive or disruptive software, denial of service attacks, or other malicious activities.

To identify, assess and mitigate cybersecurity risk, we have implemented a global information security management program that includes administrative, technical, and physical safeguards. This program seeks to identify, detect, protect and respond to threats to our information systems. Our security operations center provides advanced threat detection and response capabilities. We maintain an insider threat program to detect, investigate and mitigate insider threat risks to Lumen assets, data, services and personnel globally.

Our cybersecurity and privacy policies encompass information security, incident response procedures, and vendor management. Our risk management team works closely with our information technology, privacy, product, and operations departments to continuously evaluate emerging cyber risk. We monitor existing or proposed cybersecurity and privacy laws, regulations and guidance that are or may be applicable to us in the regions where we operate, including in the European Union and the United Kingdom where we are subject to the GDPR, as well as various other laws governing privacy rights, data protection and cybersecurity in other regions. As a U.S. government contractor, we are required to comply with extensive governmental regulations and standards regarding cyber security.
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]
As part of our overall risk management approach, we prioritize the identification and management of cybersecurity risk at several levels, including oversight by our Board of Directors, executive commitment and employee training. Our Risk and Security Committee, comprised of independent directors from our Board, assists the Board in overseeing our cybersecurity and data privacy risk. Specifically, our Risk and Security Committee, which meets quarterly, (i) receives periodic reports from our Chief Security Officer (“CSO”) on security programs, including incident reports, (ii) reviews cybersecurity risk assessments from information security, privacy, and internal audit management teams, including the adequacy and effectiveness of the Company’s internal controls regarding cybersecurity; (iii) reviews emerging cybersecurity developments and threats; (iv) reviews compliance with applicable laws and industry standards; and (v) periodically reviews our strategy to mitigate cybersecurity risks, such as our cyber insurance coverage and contingency plans in the event of security incidents or other system disruptions. At least quarterly, our Risk and Security Committee provides reports to the full Board of Directors regarding matters recently discussed by the Committee, which enables the full Board to provide additional oversight of our cyber risks and cyber processes. The full Board also reviews our cybersecurity risks in connection with its annual review of our enterprise risk mitigation programs.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block] Our Risk and Security Committee, comprised of independent directors from our Board, assists the Board in overseeing our cybersecurity and data privacy risk. Specifically, our Risk and Security Committee, which meets quarterly, (i) receives periodic reports from our Chief Security Officer (“CSO”) on security programs, including incident reports, (ii) reviews cybersecurity risk assessments from information security, privacy, and internal audit management teams, including the adequacy and effectiveness of the Company’s internal controls regarding cybersecurity; (iii) reviews emerging cybersecurity developments and threats; (iv) reviews compliance with applicable laws and industry standards; and (v) periodically reviews our strategy to mitigate cybersecurity risks, such as our cyber insurance coverage and contingency plans in the event of security incidents or other system disruptions. At least quarterly, our Risk and Security Committee provides reports to the full Board of Directors regarding matters recently discussed by the Committee, which enables the full Board to provide additional oversight of our cyber risks and cyber processes. The full Board also reviews our cybersecurity risks in connection with its annual review of our enterprise risk mitigation programs.
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] Our Risk and Security Committee, comprised of independent directors from our Board, assists the Board in overseeing our cybersecurity and data privacy risk. Specifically, our Risk and Security Committee, which meets quarterly, (i) receives periodic reports from our Chief Security Officer (“CSO”) on security programs, including incident reports, (ii) reviews cybersecurity risk assessments from information security, privacy, and internal audit management teams, including the adequacy and effectiveness of the Company’s internal controls regarding cybersecurity; (iii) reviews emerging cybersecurity developments and threats; (iv) reviews compliance with applicable laws and industry standards; and (v) periodically reviews our strategy to mitigate cybersecurity risks, such as our cyber insurance coverage and contingency plans in the event of security incidents or other system disruptions. At least quarterly, our Risk and Security Committee provides reports to the full Board of Directors regarding matters recently discussed by the Committee, which enables the full Board to provide additional oversight of our cyber risks and cyber processes. The full Board also reviews our cybersecurity risks in connection with its annual review of our enterprise risk mitigation programs.
Cybersecurity Risk Role of Management [Text Block]
Our cybersecurity organization includes a response team and management-level committees who support our processes to assess and manage cybersecurity risk as follows:

At the day-to-day operational level, we maintain an experienced information security team who are tasked with implementing our privacy and cybersecurity program and support the CSO in implementing our detection, reporting, security and mitigation functions. This team and the CSO work to develop and implement tools and processes designed to assist in identifying, containing and remediating cybersecurity incidents, and periodically retain consultants to assist with these activities. We generally seek to promote a company-wide awareness of cybersecurity risk through broad-based communications and educational initiatives, including regularly conducting phishing tests and holding employee trainings on our privacy, cybersecurity and information management policies, at least annually and more frequently when legal or other developments warrant.
The Technology, Security, and Privacy Council, co-chaired by the CSO, the Chief Information Officer (CIO), and the Chief Privacy Officer (CPO), leverages the combined expertise of various security, IT, legal, internal audit, and operational leaders across the company. This council provides a forum for these cross-functional members of management of our leadership team to consider emerging technologies, such as artificial intelligence and emerging cybersecurity risks; review cybersecurity and privacy regulations; review and update policies and standards as appropriate; and promote cross-functional collaboration to manage cybersecurity and privacy risks across the enterprise. Members of this council are responsible for reporting on cybersecurity and privacy risks to the Risk Oversight Committee (“ROC”).

The ROC, whose core members include our Chief Financial Officer, Chief Technology and Product Officer, Executive Vice President of Enterprise Operations, and Chief Legal Officer, oversees our company-wide risk mitigation strategies. With respect to cyber risks, the ROC's oversight function helps to ensure accountability, adequacy of resourcing, implementation of Company directives, and alignment of oversight provided by our Board of Directors and our senior leadership team. Some of the more significant risks discussed by the ROC are also reported to our Risk and Security Committee at least quarterly.
Cybersecurity Risk Management Positions or Committees Responsible [Flag] true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]
As part of our overall risk management approach, we prioritize the identification and management of cybersecurity risk at several levels, including oversight by our Board of Directors, executive commitment and employee training. Our Risk and Security Committee, comprised of independent directors from our Board, assists the Board in overseeing our cybersecurity and data privacy risk. Specifically, our Risk and Security Committee, which meets quarterly, (i) receives periodic reports from our Chief Security Officer (“CSO”) on security programs, including incident reports, (ii) reviews cybersecurity risk assessments from information security, privacy, and internal audit management teams, including the adequacy and effectiveness of the Company’s internal controls regarding cybersecurity; (iii) reviews emerging cybersecurity developments and threats; (iv) reviews compliance with applicable laws and industry standards; and (v) periodically reviews our strategy to mitigate cybersecurity risks, such as our cyber insurance coverage and contingency plans in the event of security incidents or other system disruptions. At least quarterly, our Risk and Security Committee provides reports to the full Board of Directors regarding matters recently discussed by the Committee, which enables the full Board to provide additional oversight of our cyber risks and cyber processes. The full Board also reviews our cybersecurity risks in connection with its annual review of our enterprise risk mitigation programs.
Our cybersecurity organization includes a response team and management-level committees who support our processes to assess and manage cybersecurity risk as follows:

At the day-to-day operational level, we maintain an experienced information security team who are tasked with implementing our privacy and cybersecurity program and support the CSO in implementing our detection, reporting, security and mitigation functions. This team and the CSO work to develop and implement tools and processes designed to assist in identifying, containing and remediating cybersecurity incidents, and periodically retain consultants to assist with these activities. We generally seek to promote a company-wide awareness of cybersecurity risk through broad-based communications and educational initiatives, including regularly conducting phishing tests and holding employee trainings on our privacy, cybersecurity and information management policies, at least annually and more frequently when legal or other developments warrant.
The Technology, Security, and Privacy Council, co-chaired by the CSO, the Chief Information Officer (CIO), and the Chief Privacy Officer (CPO), leverages the combined expertise of various security, IT, legal, internal audit, and operational leaders across the company. This council provides a forum for these cross-functional members of management of our leadership team to consider emerging technologies, such as artificial intelligence and emerging cybersecurity risks; review cybersecurity and privacy regulations; review and update policies and standards as appropriate; and promote cross-functional collaboration to manage cybersecurity and privacy risks across the enterprise. Members of this council are responsible for reporting on cybersecurity and privacy risks to the Risk Oversight Committee (“ROC”).

The ROC, whose core members include our Chief Financial Officer, Chief Technology and Product Officer, Executive Vice President of Enterprise Operations, and Chief Legal Officer, oversees our company-wide risk mitigation strategies. With respect to cyber risks, the ROC's oversight function helps to ensure accountability, adequacy of resourcing, implementation of Company directives, and alignment of oversight provided by our Board of Directors and our senior leadership team. Some of the more significant risks discussed by the ROC are also reported to our Risk and Security Committee at least quarterly.
Cybersecurity Risk Management Expertise of Management Responsible [Text Block] Our CSO has extensive experience working in the public and private sectors leading security organizations, risk management functions, and driving large information technology deployments. He has an Engineering degree, a Master of Business Administration, a Chief Information Security Officer Certification, and a Global Information Assurance Certification Security Leadership Certification. He oversees the implementation and compliance of our information security standards and mitigation of information security related risks.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] Our Risk and Security Committee, comprised of independent directors from our Board, assists the Board in overseeing our cybersecurity and data privacy risk. Specifically, our Risk and Security Committee, which meets quarterly, (i) receives periodic reports from our Chief Security Officer (“CSO”) on security programs, including incident reports, (ii) reviews cybersecurity risk assessments from information security, privacy, and internal audit management teams, including the adequacy and effectiveness of the Company’s internal controls regarding cybersecurity; (iii) reviews emerging cybersecurity developments and threats; (iv) reviews compliance with applicable laws and industry standards; and (v) periodically reviews our strategy to mitigate cybersecurity risks, such as our cyber insurance coverage and contingency plans in the event of security incidents or other system disruptions. At least quarterly, our Risk and Security Committee provides reports to the full Board of Directors regarding matters recently discussed by the Committee, which enables the full Board to provide additional oversight of our cyber risks and cyber processes. The full Board also reviews our cybersecurity risks in connection with its annual review of our enterprise risk mitigation programs.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] true
v3.25.0.1
Background and Summary of Significant Accounting Policies (Policies)
12 Months Ended
Dec. 31, 2024
Accounting Policies [Abstract]  
Basis of Presentation
Basis of Presentation

The accompanying consolidated financial statements include our accounts and the accounts of our subsidiaries in which we have a controlling interest. Intercompany amounts and transactions with our consolidated subsidiaries have been eliminated.

To simplify the overall presentation of our consolidated financial statements, we report immaterial amounts attributable to noncontrolling interests in certain of our subsidiaries as follows: (i) income attributable to noncontrolling interests in other income (expense), net, (ii) equity attributable to noncontrolling interests in additional paid-in capital and (iii) cash flows attributable to noncontrolling interests in other, net financing activities.
Reclassification We reclassified certain prior period amounts to conform to the current period presentation, including the recategorization of our Business revenue by product category and sales channel in our segment reporting for 2023 and 2022.
Operating Expenses
Operating Expenses

Our current definitions of operating expenses are as follows:

Cost of services and products (exclusive of depreciation and amortization) are expenses incurred in providing products and services to our customers. These expenses include: employee-related expenses directly attributable to operating and maintaining our network (such as salaries, wages, benefits and professional fees); facilities expenses (which include third-party telecommunications expenses we incur for using other carriers' networks to provide services to our customers); rents and utilities expenses; equipment sales expenses (such as data integration and modem expenses); and other expenses directly related to our operations; and

Selling, general and administrative expenses are corporate overhead and other operating expenses. These expenses include: employee-related expenses (such as salaries, wages, internal commissions, benefits and professional fees) directly attributable to selling products or services and employee-related expenses for administrative functions; marketing and advertising; property and other operating taxes and fees; external commissions; legal expenses associated with general matters; bad debt expense; and other selling, general and administrative expenses.

These expense classifications may not be comparable to those of other companies.
Use of Estimates
Use of Estimates

Our consolidated financial statements are prepared in accordance with U.S. generally accepted accounting principles. These accounting principles require us to make certain estimates, judgments and assumptions. We believe that the estimates, judgments and assumptions we make when accounting for specific items and matters are reasonable, based on information available at the time they are made. These estimates, judgments and assumptions can materially affect the reported amounts of assets, liabilities and components of stockholders' equity as of the dates of the consolidated balance sheets, as well as the reported amounts of revenue, expenses and components of cash flows during the periods presented in our other consolidated financial statements. We also make estimates in our assessments of potential losses in relation to threatened or pending tax and legal matters. See Note 16—Income Taxes and Note 18—Commitments, Contingencies and Other Items for additional information.

For matters not related to income taxes, if a loss is considered probable and the amount can be reasonably estimated, we recognize an expense for the estimated loss. If we have the potential to recover a portion of the estimated loss from a third party, we make a separate assessment of recoverability and reduce the estimated loss if recovery is also deemed probable.

For matters related to income taxes, if we determine the impact of an uncertain tax position is more likely than not to be sustained upon audit by the relevant taxing authority, then we recognize a benefit for the largest amount that is more likely than not to be sustained. We do not recognize any portion of an uncertain tax position if the position has less than a 50% likelihood of being sustained. We recognize interest on the amount of unrecognized benefit from uncertain tax positions.

For all of these and other matters, actual results could differ materially from our estimates.
Assets Held for Sale
Assets Held for Sale
We classify assets and related liabilities as held for sale when: (i) management has committed to a plan to sell the assets, (ii) the net assets are available for immediate sale, (iii) there is an active program to locate a buyer and (iv) the sale and transfer of the net assets is probable within one year. Assets and liabilities held for sale are presented separately on our consolidated balance sheets with a valuation allowance, if necessary, to recognize the net carrying amount at the lower of cost or fair value, less costs to sell. Depreciation of property, plant and equipment and amortization of finite-lived intangible assets and right-of-use assets are not recorded while these assets are classified as held for sale. For each period that assets are classified as being held for sale, they are tested for recoverability. Unless otherwise specified, the amounts and information presented in the notes do not include assets and liabilities that were classified as held for sale as of December 31, 2023 and December 31, 2022.
Revenue Recognition
Revenue Recognition

We earn most of our consolidated revenue from contracts with customers, primarily through the provision of communications and other services. Revenue from contracts with customers is accounted for under Accounting Standards Codification ("ASC") 606. We also earn revenue from leasing arrangements (primarily from fiber capacity and conduit leases and colocation agreements) and governmental subsidy payments, which are not accounted for under ASC 606.
Revenue is recognized when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to receive in exchange for those goods or services. Revenue is recognized based on the following five-step model:

Identification of the contract with a customer;

Identification of the performance obligations in the contract;

Determination of the transaction price;

Allocation of the transaction price to the performance obligations in the contract; and

Recognition of revenue when, or as, we satisfy a performance obligation.

We provide an array of communications services to business and residential customers, including local voice, VPN, Ethernet, data, broadband, private line (including special access), network access, transport, voice, information technology, video and other ancillary services. We provide these services to a wide range of businesses, including global, enterprise, wholesale, government, and small and medium business customers. Certain contracts also include the sale of equipment, which is not significant to our business.

We recognize revenue for services when we provide the applicable service or when control of a product is transferred. Recognition of certain payments received in advance of services being provided is deferred. These advance payments may include design, planning and engineering fees, as well as certain activation and installation charges. If these advance payments are not separate performance obligations, we recognize them as revenue over the actual or expected contract term using historical experience, which typically ranges from one to five years depending on the service. In most cases, termination fees or other fees on existing contracts that are negotiated in conjunction with new contracts are deferred and recognized over the new contract term.

For access services, we generally bill fixed monthly charges one month in advance to customers and recognize revenue as service is provided over the contract term in alignment with the customer's receipt of service. For usage and other ancillary services, we generally bill in arrears and recognize revenue as usage or delivery occurs. In most cases, the amount invoiced for our service offerings constitutes the price that would be billed on a standalone basis.

In certain cases, customers may be permitted to modify their contracts. We evaluate the change in scope or price to identify whether the modification should be treated as a separate contract, as a termination of the existing contract and creation of a new contract, or as a change to the existing contract.

Customer contracts are evaluated to determine whether the performance obligations are separable. If the performance obligations are deemed separable and separate earnings processes exist, the total transaction price that we expect to receive with the customer is allocated to each performance obligation based on its relative standalone selling price. The revenue associated with each performance obligation is then recognized as earned.

We periodically sell transmission capacity on our network. These transactions are generally structured as indefeasible rights of use, commonly referred to as IRUs, which are the exclusive right to use a specified amount of capacity or fiber for a specified term, typically 20 years. In most cases, we account for the cash consideration received on transfers of transmission capacity as ASC 606 revenue which is adjusted for the time value of money and is recognized ratably over the term of the agreement. Cash consideration received on transfers of dark fiber is accounted for as non-ASC 606 lease revenue, which we also recognize ratably over the term of the agreement. We do not recognize revenue on any contemporaneous exchanges of our transmission capacity assets for other non-owned transmission capacity assets.

In connection with offering products and services provided to the end user by third-party vendors, we review the relationship between us, the vendor and the end user to assess whether revenue should be reported on a gross or net basis. In assessing whether revenue should be reported on a gross or net basis, we consider whether we act as a principal in the transaction and control the goods and services used to fulfill the performance obligations associated with the transaction.
We have service level commitments pursuant to contracts with certain of our customers. To the extent that we determine that such service levels were not achieved or may not have been achieved, we estimate the amount of credits to be issued and record a corresponding reduction to revenue in the period that the service level commitment was not met or may not be met.

Customer payments are made based on billing schedules included in our customer contracts, which is typically on a monthly basis.

We defer (or capitalize) incremental contract acquisition and fulfillment costs and recognize (or amortize) such costs over the average contract life. Our deferred contract costs for our customers have average amortization periods of approximately 50 months for Mass Markets customers and 35 months for Business customers. These deferred costs are periodically monitored to reflect any significant change in assumptions.
Advertising Costs
Advertising Costs
Costs related to advertising are expensed as incurred and recorded as selling, general and administrative expenses in our consolidated statements of operations.
Legal Costs
Legal Costs

In the normal course of our business, we incur costs to hire and retain external legal counsel to advise us on finance, regulatory, litigation and other matters. Subject to certain exceptions, we expense these costs as the related services are received.
Income Taxes
Income Taxes

We file a consolidated federal income tax return with our eligible subsidiaries. The provision for income taxes reflects taxes currently payable, tax consequences deferred to future periods and adjustments to our liabilities for uncertain tax positions. We record deferred income tax assets and liabilities reflecting future tax consequences attributable to tax NOLs, tax credit carryforwards and differences between the financial statement carrying value of assets and liabilities and the tax basis of those assets and liabilities. Deferred taxes are computed using enacted tax rates expected to apply in the year in which the differences are expected to affect taxable income. The effect on deferred income tax assets and liabilities of a change in tax rate is recognized in earnings in the period that includes the enactment date.
We establish valuation allowances when necessary to reduce deferred income tax assets to the amounts that we believe are more likely than not to be recovered. Each quarter we evaluate the need to retain or adjust each valuation allowance on our deferred tax assets.
Cash and Cash Equivalents
Cash and Cash Equivalents

Cash and cash equivalents include highly liquid investments that are readily convertible into cash and are not subject to significant risk from fluctuations in interest rates. As a result, the value at which cash and cash equivalents are reported in our consolidated financial statements approximates their fair value. In evaluating investments for classification as cash equivalents, we require that individual securities have original maturities of ninety days or less and that individual investment funds have dollar-weighted average maturities of ninety days or less. To preserve capital and maintain liquidity, we invest with financial institutions we deem to be of sound financial condition and in high quality and relatively risk-free investment products. Our cash investment policy limits the concentration of investments with specific financial institutions or among certain products and includes criteria related to credit worthiness of any particular financial institution.
Book overdrafts occur when we have issued checks but they have not yet been presented to our controlled disbursement bank accounts for payment. Disbursement bank accounts allow us to delay funding of issued checks until the checks are presented for payment. Until the issued checks are presented for payment, the book overdrafts are included in accounts payable on our consolidated balance sheets. This activity is included in the operating activities section in our consolidated statements of cash flows.
Restricted Cash
Restricted Cash

Restricted cash consists primarily of cash and investments that collateralize our outstanding letters of credit and certain performance and operating obligations. Restricted cash is recorded as current or non-current assets in the consolidated balance sheets depending on the duration of the restriction and the purpose for which the restriction exists.
Accounts Receivable and Allowance for Credit Losses
Accounts Receivable and Allowance for Credit Losses

Accounts receivable are recognized based upon the amount due from customers for the services provided or at cost for purchased and other receivables, less an allowance for credit losses. We use a loss rate method to estimate our allowance for credit losses. For more information on our methodology for estimating our allowance for credit losses, see Note 6—Credit Losses on Financial Instruments.

We generally consider our accounts past due if they are outstanding over 30 days. Our past due accounts are written off against our allowance for credit losses and any recoveries of accounts previously written off are generally recognized as a reduction in bad debt expense in the period received. The carrying value of accounts receivable net of the allowance for credit losses approximates fair value. Accounts receivable balances acquired in a business combination are recorded at fair value for all balances receivable at the acquisition date and at the invoiced amount for those amounts invoiced after the acquisition date.
Property, Plant and Equipment
Property, Plant and Equipment

We record property, plant and equipment acquired in connection with our business acquisitions based on its estimated fair value as of its acquisition date plus the estimated value of any associated legally or contractually required retirement obligations. We record purchased and constructed property, plant and equipment at cost, plus the estimated value of any associated legally or contractually required retirement obligations. Prior to January 1, 2024, we depreciated the majority of our property, plant and equipment using the straight-line group method over the estimated useful lives of groups of assets. Under the straight-line group method, assets dedicated to providing telecommunications services (which comprise the majority of our property, plant and equipment) that have similar physical characteristics, use and expected useful lives are pooled for purposes of depreciation and tracking. We used the equal life group procedure to establish each pool's average remaining useful life. Generally, under the straight-line group method, when an asset is sold or retired in the course of normal business activities, the cost is deducted from property, plant and equipment and charged to accumulated depreciation without recognition of a gain or loss. Effective January 1, 2024, we re-established all of our assets individually, including accumulated depreciation, and began to depreciate all of our assets using the straight-line method over the estimated useful lives of the specific asset. A gain or loss is recognized in our consolidated statements of operations only if a disposal is unusual. Leasehold improvements are amortized over the shorter of the useful lives of the assets or the expected lease term. Expenditures for maintenance and repairs are expensed as incurred. During the construction phase of network and other internal-use capital projects, we capitalize related employee and interest costs. Property, plant and equipment supplies used internally are carried at average cost, except for significant individual items which are carried at actual cost.

We perform annual internal reviews to evaluate the reasonableness of the depreciable lives for our property, plant and equipment. Our reviews utilize models that take into account actual usage, physical wear and tear, replacement history, assumptions about technology evolution and, in certain instances, actuarially determined probabilities to estimate the remaining useful life of our asset base. Our remaining useful life assessments evaluate the possible loss in service value of assets that may precede the physical retirement. Assets shared among many customers may lose service value as those customers reduce their use of the asset. However, the asset is not retired until all customers no longer utilize the asset and we determine there is no alternative use for the asset.
We have asset retirement obligations associated with the legally or contractually required removal of a limited group of property, plant and equipment assets from leased properties and the disposal of certain hazardous materials present in our owned properties. When an asset retirement obligation is identified, usually in association with the acquisition of the asset, we record the fair value of the obligation as a liability. The fair value of the obligation is also capitalized as property, plant and equipment and then amortized over the estimated remaining useful life of the associated asset. Where the removal obligation is not legally binding, we expense the net cost to remove assets in the period in which the costs are actually incurred.

We review long-lived tangible assets for impairment whenever facts and circumstances indicate that the carrying amounts of the assets may not be recoverable. For assessment purposes, long-lived assets are grouped with other assets and liabilities at the lowest identifiable level for which we generate cash flows independently of other groups of assets and liabilities, absent a material change in operations. An impairment loss is recognized only if the carrying amount of the asset group is not recoverable and exceeds its estimated fair value. Recoverability of the asset group to be held and used is assessed by comparing the carrying amount of the asset group to the estimated undiscounted future net cash flows expected to be generated by the asset group. If the asset group's carrying value is not recoverable, we recognize an impairment charge for the amount by which the carrying amount of the asset group exceeds its estimated fair value.
Goodwill, Customer Relationships and Other Intangible Assets
Goodwill, Customer Relationships and Other Intangible Assets

We initially record intangible assets arising from business combinations, such as goodwill, customer relationships, capitalized software, trademarks and trade names, at estimated fair value. We amortize customer relationships primarily over an estimated life of seven to 14 years, using the straight-line method, depending on the type of customer. We amortize capitalized software using the straight-line method primarily over estimated lives ranging up to seven years. We amortize our other intangible assets using the straight-line method over an estimated life of nine to 20 years. Other intangible assets not arising from business combinations are initially recorded at cost. Where there are no legal, regulatory, contractual or other factors that would reasonably limit the useful life of an intangible asset, we classify them as indefinite-lived intangible assets and such intangible assets are not amortized.

Internally used software, whether purchased or developed by us, is capitalized and amortized using the straight-line method over its estimated useful life. We have capitalized certain costs associated with software such as costs of employees devoted to software development and external direct costs for materials and services. Costs associated with software to be used for internal purposes are expensed until the point at which the project has reached the development stage. Subsequent additions, modifications or upgrades to internal-use software are capitalized only to the extent that they allow the software to perform a task it previously did not perform. Software maintenance, data conversion and training costs are expensed in the period in which they are incurred. We review the remaining economic lives of our capitalized software annually. Capitalized software is included in other intangible assets, net, in our consolidated balance sheets.

Our long-lived intangible assets, other than goodwill, with indefinite lives are assessed for impairment annually, or, under certain circumstances, more frequently, such as when events or changes in circumstances indicate there may be an impairment. These assets are carried at the estimated fair value at the time of acquisition and assets not acquired in acquisitions are recorded at historical cost. However, if their estimated fair value is less than the carrying amount, we recognize an impairment charge for the amount by which the carrying amount of these assets exceeds their estimated fair value.

We are required to assess our goodwill for impairment annually, or more frequently if an event occurs or circumstances change that indicates it is more likely than not the fair values of any of our reporting units were less than their carrying values. We are required to write-down the value of goodwill of our reporting units in periods in which the recorded carrying value of any such unit exceeds its fair value of equity. Our reporting units are not discrete legal entities with discrete full financial statements. Therefore, we assess the equity carrying value and future cash flows each time we perform a goodwill impairment assessment on a reporting unit. To do so, we assign our assets, liabilities and cash flows to reporting units using allocation methodologies which we believe are reasonable and consistent. This process entails various estimates, judgments and assumptions.
We are required to reassign goodwill to reporting units whenever reorganizations of our internal reporting structure change the composition of our reporting units. Goodwill is reassigned to the reporting units using a relative fair value approach. When the fair value of a reporting unit is available, we allocate goodwill based on the relative fair value of the reporting units. When fair value is not available, we utilize an alternative allocation methodology that we believe represents a reasonable approximation of the fair value of the operations being reorganized.
Derivatives and Hedging
Derivatives and Hedging

From time to time we have used derivative instruments to hedge exposure to interest rate risks arising from fluctuation in interest rates. We account for derivative instruments in accordance with ASC 815, Derivatives and Hedging, which establishes accounting and reporting standards for derivative instruments. We do not use derivative financial instruments for speculative purposes.

Derivatives are recognized in the consolidated balance sheets at their fair values. When we become a party to a derivative instrument and intend to apply hedge accounting, we formally document the hedge relationship and the risk management objective for undertaking the hedge, which includes designating the instrument for financial reporting purposes as a fair value hedge, a cash flow hedge, or a net investment hedge.
As of December 31, 2024, we were not party to any swap agreements. All of our variable-to-fixed interest rate swap agreements in place at the beginning of 2022 expired during the first half of 2022. While we held these agreements, we evaluated the effectiveness as described in Note 15—Derivative Financial Instruments (designated as cash-flow hedges) qualitatively on a quarterly basis. We reflected the change in the fair value of the interest rate swaps in accumulated other comprehensive loss and subsequently reclassified into earnings in the period the hedged transaction affects earnings, by virtue of qualifying as effective cash flow hedges.
Pension and Post-Retirement Benefits
Pension and Post-Retirement Benefits
We recognize the funded status of our defined benefit and post-retirement plans as an asset or a liability on our consolidated balance sheets. Each year's actuarial gains or losses are a component of our other comprehensive income (loss), which is then included in our accumulated other comprehensive loss on our consolidated balance sheets. Pension and post-retirement benefit expenses are recognized over the period in which the employee renders service and becomes eligible to receive benefits. We make significant assumptions (including the discount rate, expected rate of return on plan assets, mortality and health care trend rates) in computing the pension and post-retirement benefits expense and obligations.
Foreign Currency
Foreign Currency

Local currencies of our foreign subsidiaries are the functional currencies for financial reporting purposes except for certain foreign subsidiaries, primarily in Latin America prior to the August 1, 2022 sale of our Latin American business. For operations outside the United States that have functional currencies other than the U.S. dollar, assets and liabilities are translated to U.S. dollars at period-end exchange rates, and revenue, expenses and cash flows are translated using average monthly exchange rates. Prior to the November 1, 2023 sale of our EMEA business and the August 1, 2022 sale of our Latin American business, a significant portion of our non-United States subsidiaries used the British pound, the Euro, or the Brazilian Real, as their functional currency, each of which experienced significant fluctuations against the U.S. dollar during the periods covered by this report when we operated the divested businesses. We recognize foreign currency translation gains and losses as a component of accumulated other comprehensive loss in stockholders' equity in our consolidated balance sheet and in our consolidated statements of comprehensive (loss) income in accordance with accounting guidance for foreign currency translation. Prior to the completion of our divestitures as discussed in Note 2—Divestitures of the Latin American, ILEC and EMEA Businesses, we considered the majority of our investments in our foreign subsidiaries to be long-term in nature. Our foreign currency transaction gains (losses), including where transactions with our non-United States subsidiaries are not considered to be long-term in nature, are included within other income (expense), net on our consolidated statements of operations.
Common Stock, Preferred Stock, Section 382 Rights Plan and Dividends
Common Stock

On December 18, 2024, we amended our articles of incorporation to eliminate the par value of our common stock (which was, prior to such amendment, $1.00 per share) as approved by our shareholders at our 2024 annual shareholders meeting. We recognized the change by reclassifying the balance in Additional paid-in capital to Common stock on our consolidated balance sheet as of December 18, 2024. All changes in capitalization previously recognized as Additional paid-in capital will hereinafter be recognized in Common stock. This change had no other impact on our consolidated financial statements.

As of December 31, 2024, we had 41 million shares authorized for future issuance under our equity incentive plans.

Preferred Stock

Holders of outstanding Lumen Technologies preferred stock are entitled to receive cumulative dividends, receive preferential distributions equal to $25 per share plus unpaid dividends upon Lumen's liquidation and vote as a single class with the holders of common stock.

Section 382 Rights Plan

We maintain a Section 382 Rights Plan to protect our U.S. federal net operating loss carryforwards ("NOLs") from certain Internal Revenue Code Section 382 limitations. Under the plan, one preferred stock purchase right was distributed for each share of our outstanding common stock as of the close of business on February 25, 2019, and those rights currently trade in tandem with the common stock until they expire or detach under the plan. This plan was designed to deter trading that would result in a change of control (as defined in Code Section 382), and therefore protect our ability to use our historical federal NOLs in the future. The plan is scheduled to lapse in late 2026.

Dividends

The declaration and payment of dividends is at the discretion of our Board of Directors. On November 2, 2022, we announced that our Board had terminated our quarterly cash dividend program.
Recently Adopted and Recently Issued Accounting Pronouncements
Recently Adopted Accounting Pronouncements

Segments

On January 1, 2024, we adopted Accounting Standards Update ("ASU") 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures.” This ASU is intended to improve reportable segment disclosure requirements primarily through enhanced disclosures about significant segment expenses. The ASU does not change how a public entity identifies its operating segments, aggregates them or applies quantitative thresholds to determine reportable segments. We did not early adopt this standard. Refer to Note 17—Segment Information for more information on the impact of this ASU on our consolidated financial statements.

Government Assistance

On January 1, 2022, we adopted ASU 2021-10 "Government Assistance (Topic 832): Disclosures by Business Entities about Government Assistance.” This ASU requires business entities to disclose information about certain types of government assistance they receive. Refer to Note 4—Revenue Recognition for more information on the impact of this ASU on our consolidated financial statements.

Investments

On January 1, 2024, we adopted ASU 2023-02, “Investments-Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method." This ASU allows reporting entities to elect to account for qualifying tax equity investments using the proportional amortization method, regardless of the program giving rise to the related income tax credits. The adoption of this ASU did not have any impact on our consolidated financial statements.

On January 1, 2024, we adopted ASU 2022-03, “Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions." This ASU clarifies that a contractual restriction on the sales of an investment in an equity security is not considered part of the unit of account of the equity security and, therefore, is not considered in measuring its fair value. The adoption of this ASU did not have any impact on our consolidated financial statements.

Leases

On January 1, 2024, we adopted ASU 2023-01, “Leases (Topic 842): Common Control Arrangements.” This ASU requires all entities to amortize leasehold improvements associated with common control leases over the useful life to the common control group. The adoption of this ASU did not have any impact on our consolidated financial statements.

On January 1, 2022, we adopted ASU 2021-05, “Leases (Topic 842): Lessors—Certain Leases with Variable Lease Payments.” This ASU (i) amends the lease classification requirements for lessors, (ii) provides criteria for lessors to classify and account for a lease with variable lease payments that do not depend on a reference index or a rate as an operating lease; and (iii) provides guidance with respect to net investments by lessors under operating leases and other related topics. The adoption of this ASU did not have a material impact on our consolidated financial statements.

Reference Rate Reform

In December 2022, the Financial Accounting Standards Board (“FASB”) issued ASU 2022-06, “Reference Rate Reform (Topic 848) – Deferral of the Sunset Date of Topic 848." This ASU, which was effective upon issuance, extends the period of time preparers can utilize the reference rate reform relief guidance in Topic 848, by deferring the sunset date from December 31, 2022, to December 31, 2024, after which entities will no longer be permitted to apply the relief in Topic 848. Based on our review of our key material contracts through December 31, 2024, this ASU does not have a material impact on our consolidated financial statements.
Supplier Finance Programs

On January 1, 2023, we adopted ASU 2022-04, “Liabilities-Supplier Finance Program (Subtopic 405-50): Disclosure of Supplier Finance Program Obligations.” This ASU requires a company that uses a supplier finance program in connection with the purchase of goods or services to disclose sufficient information about the program to allow a user of financial statements to understand the program’s nature, program activity during the period, changes from period to period and the potential magnitude of program transactions. The adoption of this ASU did not have a material impact on our consolidated financial statements.

Credit Losses

On January 1, 2023, we adopted ASU 2022-02, “Financial Instruments-Credit Losses (Topic 326): Troubled Debt Restructurings (“TDR”) and Vintage Disclosures.” The ASU eliminates the TDR recognition and measurement guidance, enhances existing disclosure requirements and introduces new requirements related to certain modifications of receivables made to borrowers experiencing financial difficulty. The adoption of this ASU did not have a material impact on our consolidated financial statements.

Adoption of Other ASUs

In July 2023, the FASB issued ASU 2023-03, “Presentation of Financial Statements (Topic 205), Income Statement—Reporting Comprehensive Income (Topic 220), Distinguishing Liabilities from Equity (Topic 480), Equity (Topic 505), and Compensation—Stock Compensation (Topic 718): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 120, SEC Staff Announcement at the March 24, 2022 EITF Meeting, and Staff Accounting Bulletin Topic 6.B, Accounting Series Release 280—General Revision of Regulation S-X: Income or Loss Applicable to Common Stock.” This ASU became effective for us once the addition to the FASB Codification was made available in July 2023. This ASU amends or supersedes various SEC paragraphs within the applicable codification to conform to past SEC staff announcements. This ASU does not provide any new guidance. The adoption of this ASU did not have any impact on our consolidated financial statements.

Recently Issued Accounting Pronouncements

In November 2024, the FASB issued ASU 2024-04, "Debt—Debt with Conversion and Other Options (Subtopic 470-20): Induced Conversions of Convertible Debt Instruments." This ASU clarifies the requirements for determining whether certain settlements of convertible debt instruments should be accounted for as induced conversions rather than as debt extinguishments. This standard is effective for the annual period of fiscal 2026, and early adoption is permitted. As of December 31, 2024, we do not hold convertible debt instruments and do not expect this ASU will have any impact on our consolidated financial statements.

In November 2024, the FASB issued ASU 2024-03, "Disaggregation of Income Statement Expenses." This ASU requires additional footnote disclosure of the details of certain income statement expense line items as well as additional disclosure about selling expenses. This standard is effective for the annual period of fiscal 2027, and early adoption is permitted. The guidance is to be applied prospectively, with the option for retrospective application. We are currently evaluating the impact the adoption of this standard will have on our disclosures.

In December 2023, the FASB issued ASU 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures.” This ASU requires that public business entities must annually (1) disclose specific categories in the rate reconciliation and (2) provide additional information for reconciling items that meet a quantitative threshold (if the effect of those reconciling items is equal to or greater than 5 percent of the amount computed by multiplying pretax income or loss by the applicable statutory income tax rate). This ASU will become effective for us in the annual period of fiscal 2025 and early adoption is permitted. We have chosen not to early adopt this ASU and are currently evaluating its impact on our consolidated financial statements, including our annual disclosure within our Income Taxes footnote.
In December 2023, the FASB issued ASU 2023-08, “Intangibles—Goodwill and Other—Crypto Assets (Subtopic 350-60): Accounting for and Disclosure of Crypto Assets.” This ASU is intended to improve the accounting for certain crypto assets by requiring an entity to measure those crypto assets at fair value each reporting period with changes in fair value recognized in net income. The amendments also improve the information provided to investors about an entity’s crypto asset holdings by requiring disclosure about significant holdings, contractual sale restrictions, and changes during the reporting period. This ASU will become effective for us in the first quarter of fiscal 2025 and early adoption is permitted. As of December 31, 2024, we do not hold crypto assets and do not expect this ASU to have any impact on our consolidated financial statements.

In October 2023, the FASB issued ASU 2023-06, “Disclosure Improvements: Codification Amendments in Response to the SEC’s Disclosure Update and Simplification Initiative.” This ASU incorporates certain SEC disclosure requirements into the FASB Codification. The amendments in the ASU are expected to clarify or improve disclosure and presentation requirements of a variety of FASB Codification topics, allow users to more easily compare entities subject to the SEC’s existing disclosures with those entities that were not previously subject to the requirements, and align the requirements in the FASB Codification with the SEC’s regulations. This ASU will become effective for each amendment on the effective date of the SEC's corresponding disclosure rule changes. As of December 31, 2024, we do not expect this ASU to have any impact on our consolidated financial statements.

In August 2023, the FASB issued ASU 2023-05, “Business Combinations – Joint Venture Formations (Subtopic 805-60): Recognition and Initial Measurement.” This ASU applies to the formation of entities that meet the definition of a joint venture (or a corporate joint venture). The amendments in the ASU require that a joint venture apply a new basis of accounting upon formation. This ASU will become effective for us in the first quarter of fiscal 2025 and early adoption is permitted. As of December 31, 2024, we do not expect this ASU to have any impact on our consolidated financial statements.
Credit Losses on Financial Instruments
To assess our expected credit losses on financial instruments, we aggregate financial assets with similar risk characteristics to monitor their credit quality or deterioration over the life of such assets. We periodically monitor certain risk characteristics within our aggregated financial assets and revise their composition accordingly, to the extent internal and external risk factors change. We separately evaluate financial assets that do not share risk characteristics with other financial assets. Our financial assets measured at amortized cost primarily consist of accounts receivable.

We use a loss rate method to estimate our allowance for credit losses. Our determination of the current expected credit loss rate begins with our review of historical loss experience as a percentage of accounts receivable. We measure our historical loss period based on the average days to recognize accounts receivable as credit losses. When asset specific characteristics and current conditions change from those in the historical period, due to changes in our credit and collections strategy, certain classes of aged balances, or credit loss and recovery policies, we perform a qualitative and quantitative assessment to adjust our historical loss rate. We use regression analysis to develop an expected loss rate using historical experience and economic data over a forecast period. We measure our forecast period based on the average days to collect payment on billed accounts receivable. To determine our current allowance for credit losses, we combine the historical and expected credit loss rates and apply them to our period end accounts receivable.

If there is an unexpected deterioration of a customer's financial condition or an unexpected change in economic conditions, including macroeconomic events, we assess the need to adjust the allowance for credit losses. Any such resulting adjustments would affect earnings in the period that adjustments are made.
The assessment of the correlation between historical observed default rates, current conditions and forecasted economic conditions requires judgment. Alternative interpretations of these factors could have resulted in different conclusions regarding our allowance for credit losses. The amount of credit loss is sensitive to changes in circumstances and forecasted economic conditions. Our historical credit loss experience, current conditions and forecast of economic conditions may also not be representative of the customers' actual default experience in the future, and we may use methodologies that differ from those used by other companies.
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Goodwill, Customer Relationships and Other Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of goodwill and other intangible assets
Goodwill, customer relationships and other intangible assets consisted of the following:
As of December 31,
2024
2023
 (Dollars in millions)
Goodwill(1)
$1,964 1,964 
Indefinite-lived intangible assets$
Other intangible assets subject to amortization: 
Customer relationships(2), less accumulated amortization of $4,504 and $4,248
3,196 3,811 
Capitalized software, less accumulated amortization of $4,067 and $4,045(3)
1,529 1,564 
Patents and other, less accumulated amortization of $86 and $72(3)
72 86 
Total other intangible assets, net$4,806 5,470 
______________________________________________________________________ 
(1)We recorded cumulative non-cash, non-tax-deductible goodwill impairment charges of $10.7 billion during the year ended December 31, 2023.
(2)For the year ended December 31, 2023, customer relationships decreased $121 million in conjunction with the sale of select CDN customer contracts, in the fourth quarter of 2023 that resulted in a net loss of $73 million included in selling, general and administrative expenses in our consolidated statements of operations.
(3)Certain capitalized software with a gross carrying value of $352 million and $183 million and trade names with a gross carrying value of $153 million and $130 million became fully amortized during 2023 and 2022, respectively, and were retired during the first quarter of 2024 and 2023, respectively.
Schedule of cost of equity
As of October 31, 2022
Reporting Units
Mass MarketsNA BusinessEMEAAPAC
Weighted average cost of capital9.4 %9.4 %9.8 %11.3 %
After-tax cost of debt4.7 %4.7 %5.1 %6.3 %
Cost of equity14.0 %14.0 %14.4 %16.2 %
Schedule of goodwill attributable to segments
The following table shows the rollforward of goodwill assigned to our reportable segments from December 31, 2022 through December 31, 2024.

 BusinessMass MarketsTotal
 (Dollars in millions)
As of December 31, 2022(1)
$7,906 4,751 12,657 
Impairment(7,906)(2,787)(10,693)
As of December 31, 2023(1)
— 1,964 1,964 
As of December 31, 2024(1)
$— 1,964 1,964 
______________________________________________________________________
(1)Goodwill at December 31, 2024, December 31, 2023 and December 31, 2022 is net of accumulated impairment losses of $21.7 billion, $21.7 billion and $11.0 billion, respectively.
Schedule of estimated amortization expense for intangible assets
We estimate that future total amortization expense for finite-lived intangible assets will be as follows:

 (Dollars in millions)
2025$926 
2026875 
2027788 
2028717 
2029488 
2030 and thereafter1,003 
Total finite-lived intangible assets future amortization expense$4,797 
v3.25.0.1
Revenue Recognition (Tables)
12 Months Ended
Dec. 31, 2024
Revenue from Contract with Customer [Abstract]  
Schedule of revenue from external customers by products and services
The following tables provide total revenue by segment, sales channel and product category. They also provide the amount of revenue that is not subject to ASC 606, "Revenue from Contracts with Customers" ("ASC 606"), but is instead governed by other accounting standards. The amounts in the tables below include revenue for the Latin American, ILEC and EMEA businesses prior to their sales on August 1, 2022, October 3, 2022 and November 1, 2023, respectively:

Year Ended December 31, 2024
Total Revenue
Adjustments for Non-ASC 606 Revenue (1)
Total Revenue from Contracts with Customers
 (Dollars in millions)
Business Segment by Sales Channel and Product Category
Large Enterprise
Grow$1,733 (256)1,477 
Nurture1,015 — 1,015 
Harvest441 — 441 
Other190 (1)189 
Total Large Enterprise Revenue3,379 (257)3,122 
Mid-Market Enterprise
Grow841 (25)816 
Nurture690 — 690 
Harvest320 (4)316 
Other36 (5)31 
Total Mid-Market Enterprise Revenue1,887 (34)1,853 
Public Sector
Grow596 (85)511 
Nurture355 — 355 
Harvest389 (4)385 
Other509 — 509 
Total Public Sector Revenue1,849 (89)1,760 
Wholesale
Grow1,048 (287)761 
Nurture740 (19)721 
Harvest1,079 (140)939 
Other— 
Total Wholesale Revenue2,875 (446)2,429 
International and Other
Grow155 (4)151 
Nurture161 — 161 
Harvest42 — 42 
Other15 — 15 
Total International and Other373 (4)369 
Business Segment by Product Category
Grow4,373 (657)3,716 
Nurture2,961 (19)2,942 
Harvest2,271 (148)2,123 
Other758 (6)752 
Total Business Segment Revenue10,363 (830)9,533 
Mass Markets Segment by Product Category
Fiber Broadband736 (13)723 
Other Broadband1,167 (105)1,062 
Voice and Other842 (31)811 
Total Mass Markets Revenue2,745 (149)2,596 
Total Revenue$13,108 (979)12,129 
Timing of revenue
Goods and services transferred at a point in time$136 
Services performed over time11,993 
Total revenue from contracts with customers$12,129 

Year Ended December 31, 2023
Total Revenue
Adjustments for Non-ASC 606 Revenue (1)
Total Revenue from Contracts with Customers
 (Dollars in millions)
Business Segment by Sales Channel and Product Category
Large Enterprise
Grow$1,709 (179)1,530 
Nurture1,172 — 1,172 
Harvest537 — 537 
Other200 (5)195 
Total Large Enterprise Revenue3,618 (184)3,434 
Mid-Market Enterprise
Grow807 (28)779 
Nurture829 — 829 
Harvest372 (4)368 
Other36 (4)32 
Total Mid-Market Enterprise Revenue2,044 (36)2,008 
Public Sector
Grow473 (81)392 
Nurture399 — 399 
Harvest383 (1)382 
Other534 — 534 
Total Public Sector Revenue1,789 (82)1,707 
Wholesale
Grow1,052 (251)801 
Nurture827 (25)802 
Harvest1,261 (165)1,096 
Other12 — 12 
Total Wholesale Revenue3,152 (441)2,711 
International and Other
Grow453 (115)338 
Nurture266 — 266 
Harvest126 — 126 
Other135 — 135 
Total International and Other980 (115)865 
Business Segment by Product Category
Grow4,494 (654)3,840 
Nurture3,493 (25)3,468 
Harvest2,679 (170)2,509 
Other917 (9)908 
Total Business Segment Revenue11,583 (858)10,725 
Mass Markets Segment by Product Category
Fiber Broadband637 (16)621 
Other Broadband1,395 (126)1,269 
Voice and Other942 (36)906 
Total Mass Markets Revenue2,974 (178)2,796 
Total Revenue$14,557 (1,036)13,521 
Timing of revenue
Goods and services transferred at a point in time$178 
Services performed over time13,343 
Total revenue from contracts with customers$13,521 

Year Ended December 31, 2022
Total Revenue
Adjustments for Non-ASC 606 Revenue (1)
Total Revenue from Contracts with Customers

(Dollars in millions)
Business Segment by Sales Channel and Product Category
Large Enterprise
Grow$1,653 (199)1,454 
Nurture1,274 — 1,274 
Harvest690 (2)688 
Other210 (7)203 
Total Large Enterprise Revenue3,827 (208)3,619 
Mid-Market Enterprise
Grow768 (32)736 
Nurture949 — 949 
Harvest494 (6)488 
Other31 (2)29 
Total Mid-Market Enterprise Revenue2,242 (40)2,202 
Public Sector
Grow445 (79)366 
Nurture492 — 492 
Harvest466 (3)463 
Other460 (2)458 
Total Public Sector Revenue1,863 (84)1,779 
Wholesale
Grow991 (271)720 
Nurture1,012 (23)989 
Harvest1,551 (215)1,336 
Other51 — 51 
Total Wholesale Revenue3,605 (509)3,096 
International and Other
Grow761 (176)585 
Nurture401 — 401 
Harvest210 — 210 
Other190 — 190 
Total International and Other1,562 (176)1,386 
Business Segment by Product Category
Grow4,618 (757)3,861 
Nurture4,128 (23)4,105 
Harvest3,411 (226)3,185 
Other942 (11)931 
Total Business Segment Revenue13,099 (1,017)12,082 
Mass Markets Segment by Product Category
Fiber Broadband604 (18)586 
Other Broadband2,163 (200)1,963 
Voice and Other1,612 (135)1,477 
Total Mass Markets Revenue4,379 (353)4,026 
Total Revenue$17,478 (1,370)16,108 
Timing of revenue
Goods and services transferred at a point in time$154 
Services performed over time15,954 
Total revenue from contracts with customers$16,108 
______________________________________________________________________
(1)Includes regulatory revenue and lease revenue not within the scope of ASC 606.
Schedule of contract with customer, asset and liability
The following table provides balances of customer receivables, contract assets and contract liabilities, net of amounts classified as held for sale:
As of December 31,
2024
2023
 (Dollars in millions)
Customer receivables, less allowance of $50 and $60
$1,193 1,256 
Contract assets
19 29 
Contract liabilities
733 698 
Schedule of capitalized contract cost
The following tables provide changes in our contract acquisition costs and fulfillment costs:
Year Ended December 31, 2024
Acquisition CostsFulfillment Costs
 (Dollars in millions)
Beginning of period balance$182 184 
Costs incurred151 176 
Amortization(130)(138)
End of period balance$203 222 

Year Ended December 31, 2023
Acquisition CostsFulfillment Costs
 (Dollars in millions)
Beginning of period balance$202 192 
Costs incurred136 157 
Amortization(152)(140)
Classified as held for sale
(4)(25)
End of period balance$182 184 
v3.25.0.1
Leases (Tables)
12 Months Ended
Dec. 31, 2024
Leases [Abstract]  
Schedule of lease, cost
Lease expense consisted of the following:

Years Ended December 31,
202420232022
(Dollars in millions)
Operating and short-term lease cost$446 459 451 
Finance lease cost:
Amortization of right-of-use assets25 32 37 
Interest on lease liability11 12 15 
Total finance lease cost36 44 52 
Total lease cost$482 503 503 
Supplemental consolidated cash flow statement information related to leases is included below:
Years Ended December 31,
20242023
(Dollars in millions)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases$427 461 
Operating cash flows for finance leases11 12 
Financing cash flows for finance leases17 25 
Supplemental lease cash flow disclosures:
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities$191 143 
Right-of-use assets obtained in exchange for new finance lease liabilities10 
Schedule of assets and liabilities
Supplemental consolidated balance sheet information and other information related to leases is included below:
As of December 31,
Leases (Dollars in millions)Classification on the Balance Sheet20242023
Assets
Operating lease assetsOther, net$1,119 1,230 
Finance lease assetsProperty, plant and equipment, net of accumulated depreciation236 260 
Total leased assets$1,355 1,490 
Liabilities
Current
OperatingCurrent operating lease liabilities$253 268 
FinanceCurrent maturities of long-term debt17 16 
Noncurrent
OperatingOther959 1,040 
FinanceLong-term debt198 215 
Total lease liabilities$1,427 1,539 
Weighted-average remaining lease term (years)
Operating leases7.78.2
Finance leases11.411.3
Weighted-average discount rate
Operating leases8.90 %7.59 %
Finance leases4.40 %4.98 %
Schedule of maturity of operating lease liabilities
As of December 31, 2024, maturities of lease liabilities were as follows:
 Operating LeasesFinance Leases
 (Dollars in millions)
2025$340 27 
2026252 28 
2027204 28 
2028167 28 
2029131 26 
Thereafter592 140 
Total lease payments1,686 277 
Less: interest(474)(62)
Total1,212 215 
Less: current portion(253)(17)
Long-term portion$959 198 
Schedule of maturity of finance lease liabilities
As of December 31, 2024, maturities of lease liabilities were as follows:
 Operating LeasesFinance Leases
 (Dollars in millions)
2025$340 27 
2026252 28 
2027204 28 
2028167 28 
2029131 26 
Thereafter592 140 
Total lease payments1,686 277 
Less: interest(474)(62)
Total1,212 215 
Less: current portion(253)(17)
Long-term portion$959 198 
v3.25.0.1
Credit Losses on Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2024
Credit Loss [Abstract]  
Schedule of financing receivable, allowance for credit loss
The following table presents the activity of our allowance for credit losses by accounts receivable portfolio:
BusinessMass MarketsTotal
(Dollars in millions)
Balance at December 31, 2021$88 26 114 
Provision for expected losses25 108 133 
Write-offs charged against the allowance(61)(114)(175)
Recoveries collected10 16 
Change in allowance in assets held for sale(1)
(5)(3)
Balance at December 31, 202257 28 85 
Provision for expected losses35 65 100 
Write-offs charged against the allowance(62)(65)(127)
Recoveries collected
Balance at December 31, 202336 31 67 
Provision for expected losses26 46 72 
Write-offs charged against the allowance(32)(58)(90)
Recoveries collected10 
Balance at December 31, 2024
$36 23 59 
______________________________________________________________________
(1)Represents changes in amounts classified as held for sale related to the divestitures of our Latin American and ILEC businesses on August 1, 2022 and October 3, 2022, respectively, and the inclusion of a $5 million allowance for credit losses classified as held for sale as of December 31, 2022 related to the divestiture of the EMEA business in 2023. See Note 2—Divestitures of the Latin American, ILEC and EMEA Businesses.
v3.25.0.1
Long-Term Debt and Credit Facilities (Tables)
12 Months Ended
Dec. 31, 2024
Debt Disclosure [Abstract]  
Schedule of long-term debt including unamortized discounts and premiums
The following table reflects the consolidated long-term debt of Lumen Technologies, Inc. and its subsidiaries as of the dates indicated below, including unamortized premiums (discounts) and unamortized debt issuance costs:
   As of December 31,
 
Interest Rates(1)
Maturities(1)
20242023
   (Dollars in millions)
Senior Secured Debt: (2)
Lumen Technologies, Inc.    
Series A Revolving Credit Facility
SOFR + 4.00%
2028$— — 
Series B Revolving Credit Facility
SOFR + 6.00%
2028— — 
Term Loan A(3)
SOFR + 6.00%
2028357 — 
Term Loan B-1(4)
SOFR + 2.35%
20291,606 — 
Term Loan B-2(4)
SOFR + 2.35%
20301,606 — 
Term Loan B(5)
SOFR + 2.25%
202756 3,891 
Other Facilities(6)
N/A
N/A
— 1,399 
Superpriority Notes
4.125% - 10.000%
2029 - 2032
1,247 — 
Former Parent Secured Notes(7)
N/A
N/A
— 1,250 
Subsidiaries:
Level 3 Financing, Inc.
Term Loan B-1(8)
SOFR + 6.56%
20291,199 — 
Term Loan B-2(8)
SOFR + 6.56%
20301,199 — 
Former Level 3 Facility(9)
SOFR + 1.75%
202712 2,411 
First Lien Notes(10)
10.500% - 11.000%
2029 - 2030
3,846 925 
Second Lien Notes
3.875% - 10.000%
2029 - 2032
2,579 — 
Former Level 3 Senior Notes(11)
N/A
N/A
— 1,500 
Unsecured Senior Notes and Other Debt:
Lumen Technologies, Inc.
Senior notes(12)
4.000% - 7.650%
2025 - 2042
1,428 2,143 
Subsidiaries:   
Level 3 Financing, Inc.
Senior notes(13)
3.400% - 4.625%
2027 - 2029
964 3,940 
Qwest Corporation
Senior notes
6.500% - 7.750%
2025 - 2057
1,973 1,986 
Former Term Loan(14)
N/A
N/A
— 215 
Qwest Capital Funding, Inc.
Senior notes
6.875% - 7.750%
2028 - 2031
192 192 
Finance lease and other obligations
VariousVarious254 285 
Unamortized discounts, net  (395)(4)
Unamortized debt issuance costs(217)(145)
Total long-term debt  17,906 19,988 
Less current maturities  (412)(157)
Long-term debt, excluding current maturities  $17,494 19,831 
_______________________________________________________________________________
N/A - Not applicable
(1)As of December 31, 2024. All references to "SOFR" refer to the Secured Overnight Financing Rate.
(2)As discussed further below in this Note, the debt listed under the caption “Senior Secured Debt” is either secured by assets of the issuer, guaranteed on a secured or unsecured basis by certain affiliates of the issuer, or both. As discussed further in footnotes 12 and 13 below, we reclassified in the table above certain notes that were guaranteed, secured, or both prior to the TSA Effective Date (as defined below) from “secured” to “unsecured” in light of amendments that released such security interests.
(3)Term Loan A had an interest rate of 10.573% as of December 31, 2024.
(4)Term Loan B-1 and B-2 each had an interest rate of 7.037% as of December 31, 2024.
(5)Term Loan B had an interest rate of 6.937% and 7.720% as of December 31, 2024 and December 31, 2023, respectively.
(6)Reflects revolving credit facility and term loan A and A-1 debt issued under the Former Parent Facilities (as defined below), which were due in 2025 and had interest rates of 7.464% and 7.470%, respectively, as of December 31, 2023.
(7)Former Parent Secured Notes were due in 2027 and had an interest rate of 4.000% as of December 31, 2023, prior to being cancelled on the TSA Effective Date (as defined below).
(8)The Level 3 Term Loan B-1 and B-2 each had an interest rate of 11.133% as of December 31, 2024.
(9)Reflects Level 3 Tranche B 2027 Term Loan issued under the Former Level 3 Facility (as defined below), which had an interest rate of 6.437% and 7.220% as of December 31, 2024 and December 31, 2023, respectively.
(10)Includes Level 3's 10.500% Senior Secured Notes due 2030 issued in early 2023, the terms of which have been amended to be consistent with Level 3's first lien notes issued on March 22, 2024.
(11)Former Level 3 Senior Notes were due in 2027 - 2029 and had an interest rates of 3.400% - 3.875% as of December 31, 2023, prior to being cancelled on the TSA Effective Date (as defined below).
(12)The total amount of these notes at December 31, 2024 includes the remaining aggregate principal amount due under the Former Parent Secured Notes, the terms of which were amended on March 22, 2024 to release the guarantees of such debt that could be released in accordance with their indentures and the security interests relating thereto.
(13)The total amount for these notes at December 31, 2024 includes the remaining aggregate principal amount due under the Former Level 3 Secured Notes, the terms of which were amended on March 22, 2024 to release the security interests relating thereto.
(14)The Qwest Corporation Term Loan was due in 2027 and had an interest rate of 7.970% as of December 31, 2023, prior to being cancelled on the TSA Effective Date (as defined below).
Schedule of maturities of long-term debt
Set forth below is the aggregate principal amount of our long-term debt as of December 31, 2024 (excluding unamortized discounts, net, and unamortized debt issuance costs) maturing during the following years.

 (Dollars in millions)
2025$412 
202696 
2027250 
2028738 
20297,203 
2030 and thereafter9,819 
Total long-term debt$18,518 
Schedule of debt retirements
The following table sets forth the aggregate principal amount of each series of senior notes of Lumen and Level 3 Financing retired in exchange for cash in November 2024 in connection with the Cash Tender Offers:

Debt
Aggregate Principal Amount (in millions)
Lumen Technologies, Inc.
5.625% Senior Notes, Series X, due 2025
$33 
7.200% Senior Notes, Series D, due 2025
5.125% Senior Notes due 2026
4.000% Senior Secured Notes due 2027 (unsecured)
6.875% Debentures, Series G, due 2028
24 
Level 3 Financing, Inc.
3.400% Senior Secured Notes due 2027 (unsecured)
4.625% Senior Notes due 2027
48 
4.250% Senior Notes due 2028
275 
Total
$393 
The following table sets forth the aggregate principal amount of each series of senior unsecured notes of Lumen and Level 3 Financing exchanged and retired on September 24, 2024 in connection with the Exchange Offers:

Debt
Aggregate Principal Amount (in millions)
Lumen Technologies, Inc.
5.125% Senior Notes due 2026
$137 
4.000% Senior Secured Notes due 2027 (unsecured)
188 
6.875% Debentures, Series G, due 2028
80 
4.500% Senior Notes due 2029
86 
Level 3 Financing, Inc.
3.400% Senior Secured Notes due 2027 (unsecured)
77 
4.625% Senior Notes due 2027
280 
Total
$848 
Schedule of debt repayments
The following table sets forth the aggregate principal amount of each of Lumen's consolidated debt arrangements that were partially or fully paid in exchange for cash or newly-issued debt during the first quarter of 2024 in connection with the TSA Transactions:

Aggregate Principal Amount
(in millions)
Debt
Repaid
Exchanged
Lumen Technologies, Inc.
Term Loan A
$933 — 
Term Loan A-1
266 — 
Term Loan B
575 3,259 
5.125% Senior Notes due 2026
116 147 
4.000% Senior Notes due 2027
153 865 
Level 3 Financing, Inc.
Term Loan B
— 2,398 
3.400% Senior Notes due 2027
— 668 
3.875% Senior Notes due 2029
— 678 
4.625% Senior Notes due 2027
— 606 
4.250% Senior Notes due 2028
— 712 
3.625% Senior Notes due 2029
— 458 
3.750% Senior Notes due 2029
— 453 
Qwest Corporation
Term Loan B
215 — 
Total$2,258 10,244 
The following table sets forth the aggregate principal amount of each series of Lumen’s senior unsecured notes retired during the year ended December 31, 2023, in connection with the above-described exchange transactions:

Debt
Aggregate principal (amounts in millions)
5.625% Senior Notes, Series X, due 2025
$49 
7.200% Senior Notes, Series D, due 2025
21 
5.125% Senior Notes due 2026
291 
6.875% Debentures, Series G, due 2028
52 
5.375% Senior Notes due 2029
275 
4.500% Senior Notes due 2029
558 
7.600% Senior Notes, Series P, due 2039
164 
7.650% Senior Notes, Series U, due 2042
144 
Total$1,554 
Schedule of debt issuances
The following table sets forth the aggregate principal balance as of December 31, 2024 of the debt issued by Lumen or Level 3 Financing in connection with the TSA Transactions:

New Debt Issuances(1)
Aggregate Principal Amount as of December 31, 2024 (in millions)
Lumen Technologies, Inc.
Term Loan A(2)
$357 
Term Loan B-1(2)
1,606 
Term Loan B-2(2)
1,606 
4.125% Superpriority Notes due 2029-2030
808 
Level 3 Financing, Inc.
Term Loan B-1
1,199 
Term Loan B-2
1,199 
10.500% First Lien Notes due 2029
668 
11.000% First Lien Notes due 2029
1,575 
4.875% Second Lien Notes due 2029
606 
10.750% First Lien Notes due 2030
678 
4.500% Second Lien Notes due 2030
712 
3.875% Second Lien Notes due 2030
458 
4.000% Second Lien Notes due 2031
453 
Total
$11,925 
______________________________________________________________________ 
(1)Except for Lumen's Term Loan A and $1.375 billion of Level 3 Financing's 11.000% First Lien Notes due 2029, all of the new debt listed in this table was issued in the first quarter of 2024 in exchange for previously-issued debt of Lumen or Level 3 Financing in connection with the TSA Transactions.
(2)Reflects approximately $66 million of term loan installment payments and paydowns made between the TSA Effective Date and December 31, 2024.
Schedule of debt repurchases The following table sets forth the aggregate principal amount of each series of notes and term loans repurchased during the year ended December 31, 2024:
Debt
 Principal Amount Repurchased
(in millions)
Lumen Technologies, Inc.
Term Loan A
$
Term Loan B-1
Term Loan B-2
5.625% Senior Notes, Series X, due 2025
70 
7.200% Senior Notes, Series D, due 2025
13 
6.875% Senior Notes, Series G, due 2028
4.500% Senior Notes due 2029
24 
4.125% Superpriority Notes due 2029-2030
7.600% Senior Notes due 2039
7.650% Senior Notes due 2042
Level 3 Financing, Inc.
4.250% Senior Notes due 2028
34 
3.625% Senior Notes due 2029
81 
3.750% Sustainability-Linked Senior Notes due 2029
86 
3.875% Senior Secured Notes due 2029 (unsecured)
18 
Qwest Corporation
7.250% Senior Notes due 2025
13 
Total$376 
Schedule of amount of gross interest expense, net of capitalized interest
Interest expense includes interest on total long-term debt. The following table presents the amount of gross interest expense, net of capitalized interest:

 Years Ended December 31,
 202420232022
 (Dollars in millions)
Interest expense:   
Gross interest expense$1,548 1,269 1,398 
Capitalized interest(176)(111)(66)
Total interest expense$1,372 1,158 1,332 
v3.25.0.1
Accounts Receivable (Tables)
12 Months Ended
Dec. 31, 2024
Receivables [Abstract]  
Schedule of components of accounts receivable
The following table presents details of our accounts receivable balances:
 As of December 31,
 20242023
 (Dollars in millions)
Trade and purchased receivables$1,181 1,181 
Earned and unbilled receivables63 165 
Other46 39 
Total accounts receivable1,290 1,385 
Less: allowance for credit losses(59)(67)
Accounts receivable, less allowance$1,231 1,318 
v3.25.0.1
Property, Plant and Equipment (Tables)
12 Months Ended
Dec. 31, 2024
Property, Plant and Equipment [Abstract]  
Schedule of net property, plant and equipment
Net property, plant and equipment is composed of the following:
 Depreciable
Lives
As of December 31,
 
2024
2023
  (Dollars in millions)
LandN/A$630 646 
Fiber, conduit and other outside plant (1)
15-45 years
17,348 15,217 
Central office and other network electronics(2)
3-10 years
16,616 15,741 
Support assets(3)
3-30 years
6,804 6,714 
Construction in progress(4)
N/A2,144 2,758 
Gross property, plant and equipment 43,542 41,076 
Accumulated depreciation (23,121)(21,318)
Net property, plant and equipment $20,421 19,758 
_______________________________________________________________________________
(1)Fiber, conduit and other outside plant consists of fiber and metallic cable, conduit, poles and other supporting structures.
(2)Central office and other network electronics consists of circuit and packet switches, routers, transmission electronics and electronics providing service to customers.
(3)Support assets consist of buildings, data centers, computers and other administrative and support equipment.
(4)Construction in progress includes inventory held for construction and property of the aforementioned categories that has not been placed in service as it is still under construction.
Schedule of changes to asset retirement obligations
The following table provides asset retirement obligation activity:
 Years Ended December 31,
 20242023
 (Dollars in millions)
Balance at beginning of period$157 156 
Accretion expense12 
Liabilities settled(12)(9)
Change in estimate— 
Balance at end of period
$157 157 
v3.25.0.1
Severance (Tables)
12 Months Ended
Dec. 31, 2024
Restructuring and Related Activities [Abstract]  
Schedule of changes in accrued liabilities for severance expenses and leased real estate
Changes in our accrued liabilities for severance expenses were as follows:
Years Ended December 31,
20242023
 (Dollars in millions)
Balance at beginning of period$18 11 
Accrued to expense130 74 
Payments, net(136)(67)
Balance at end of period$12 18 
v3.25.0.1
Employee Benefits (Tables)
12 Months Ended
Dec. 31, 2024
Retirement Benefits [Abstract]  
Schedule of estimated future benefit payments The estimated benefit payments provided below are based on actuarial assumptions using the demographics of the employee and retiree populations and have been reduced by estimated participant contributions.
Combined Pension PlanPost-Retirement
Benefit Plans
Medicare Part D
Subsidy Receipts
 (Dollars in millions)
Estimated future benefit payments:   
2025$569 188 (2)
2026490 184 (2)
2027473 180 (2)
2028450 173 (2)
2029433 166 (1)
2030 - 20341,899 720 (5)
Schedule of actuarial assumptions used to compute net periodic benefit expense
The actuarial assumptions used to compute the net periodic benefit expense for our Combined Pension Plan and post-retirement benefit plans are based upon information available as of the beginning of the year, as presented in the following table.
 Combined Pension PlanPost-Retirement Benefit Plans
 202420232022202420232022
Actuarial assumptions at beginning of year:      
Discount rate
5.16% - 5.35%
5.45% - 5.69%
2.29% - 3.12%
5.17% - 5.42%
5.43% - 5.75%
2.19% - 5.78%
Rate of compensation increase3.25 %3.25 %3.25 %N/AN/AN/A
Expected long-term rate of return on plan assets(1)
6.50 %6.50 %5.50 %3.00 %3.00 %4.00 %
Initial health care cost trend rateN/AN/AN/A
7.50% / 5.40%
7.20% / 5.00%
5.00% / 5.75%
Ultimate health care cost trend rateN/AN/AN/A4.50 %4.50 %4.50 %
Year ultimate trend rate is reachedN/AN/AN/A203120302025
_______________________________________________________________________________
N/A - Not applicable
(1)Rates are presented net of projected fees and administrative costs.
Schedule of components of net periodic pension expense (income) and post-retirement benefit expense Net periodic benefit expense for our Combined Pension Plan and the Lumen Pension Plan (through October 3, 2022, together the "Pension Plans") includes the following components:
 Pension Plans
Years Ended December 31,
 202420232022
 (Dollars in millions)
Service cost$24 25 44 
Interest cost251 270 194 
Expected return on plan assets(272)(287)(385)
Realized to gain on sale of businesses— — 546 
Special termination benefits charge— — 
Recognition of prior service credit(7)(7)(10)
Recognition of actuarial loss108 104 122 
Net periodic pension expense$104 107 511 

Net periodic benefit expense for our post-retirement benefit plans includes the following components:
 Post-Retirement Plans
Years Ended December 31,
 202420232022
 (Dollars in millions)
Service cost$10 
Interest cost94 103 72 
Realized to gain on sale of businesses— — (32)
Recognition of prior service cost(8)(8)
Recognition of actuarial loss(17)(20)(4)
Special termination benefits— — 
Net periodic post-retirement benefit expense$75 80 54 
Schedule of actuarial assumptions used to compute the funded status for the plans
The actuarial assumptions used to compute the funded status for the plans are based upon information available as of December 31, 2024 and 2023 and are as follows:
 Combined Pension PlanPost-Retirement Benefit Plans
 As of December 31,As of December 31,
 2024202320242023
Actuarial assumptions at end of year:    
Discount rate5.62 %5.21 %5.60 %5.20 %
Rate of compensation increase3.25 %3.25 %N/AN/A
Initial health care cost trend rateN/AN/A
7.90% / 6.20%
7.50% / 5.40%
Ultimate health care cost trend rateN/AN/A4.50 %4.50 %
Year ultimate trend rate is reachedN/AN/A20312031
_______________________________________________________________________________
N/A - Not applicable
Schedule of change in benefit obligation
The following tables summarize the change in the benefit obligations for the Combined Pension Plan and post-retirement benefit plans:
 Combined Pension Plan
Years Ended December 31,
 202420232022
 (Dollars in millions)
Change in benefit obligation:   
Benefit obligation at beginning of year$5,212 5,295 9,678 
Plan spin-off— — (2,552)
Service cost24 25 37 
Interest cost251 270 154 
Special termination benefits charge— — 
Actuarial (gain) loss(119)114 (1,432)
Benefits paid from plan assets(552)(494)(590)
Benefit obligation at end of year$4,816 5,212 5,295 
 Post-Retirement Benefit Plans
Years Ended December 31,
 202420232022
 (Dollars in millions)
Change in benefit obligation   
Benefit obligation at beginning of year$1,919 1,995 2,781 
Benefit obligation transferred to purchaser upon sale of business— — (26)
Service cost10 
Interest cost94 103 72 
Participant contributions27 32 37 
Direct subsidy receipts
Plan amendments— — (41)
Actuarial (gain) loss(84)14 (591)
Benefits paid by company(214)(228)(249)
Benefits paid from plan assets— (4)— 
Special termination benefits charge— — 
Benefit obligation at end of year$1,750 1,919 1,995 
Schedule of change in plan assets
The following table summarizes the change in the fair value of plan assets for the Combined Pension Plan:

 Combined Pension Plan
Years Ended December 31,
 202420232022
 (Dollars in millions)
Change in plan assets   
Fair value of plan assets at beginning of year$4,476 4,715 8,531 
Plan spin-off— — (2,239)
Return on plan assets107 255 (987)
Benefits paid from plan assets(552)(494)(590)
Contributions170 — — 
Fair value of plan assets at end of year$4,201 4,476 4,715 
Schedule of fair value of the plans' assets by asset category
The table below presents the fair value of plan assets by category and the input levels used to determine those fair values at December 31, 2024. It is important to note that the asset allocations do not include market exposures that are gained with derivatives. Investments include dividend and interest receivables, pending trades and accrued expenses.
 Fair Value of Combined Pension Plan Assets
As of December 31, 2024
 Level 1Level 2Level 3Total
 (Dollars in millions)
Assets
Investment grade bonds (a)$372 1,391 — 1,763 
High yield bonds (b)— 26 30 
Emerging market bonds (c)70 34 — 104 
U.S. stocks (d)260 263 
Non-U.S. stocks (e)14 — 15 
Cash equivalents and short-term investments (o)— 
Total investments, excluding investments valued at NAV$722 1,455 2,183 
Other receivables27 
Investments valued at NAV2,359 
Liabilities
Repurchase agreements & other obligations (n)$— (361)— (361)
Derivatives (m)(1)(6)— (7)
Total pension plan assets   $4,201 

The table below presents the fair value of plan assets by category and the input levels used to determine those fair values at December 31, 2023. It is important to note that the asset allocations do not include market exposures that are gained with derivatives. Investments include dividend and interest receivable, pending trades and accrued expenses.
 Fair Value of Combined Pension Plan Assets
As of December 31, 2023
 Level 1Level 2Level 3Total
 (Dollars in millions)
Assets
Investment grade bonds (a)$390 1,838 — 2,228 
High yield bonds (b)— 32 36 
Emerging market bonds (c)57 57 — 114 
U.S. stocks (d)247 — 248 
Non-U.S. stocks (e)— — 
Multi-asset strategies (l)28 — — 28 
Total investments, excluding investments valued at NAV$728 1,927 2,660 
Investments valued at NAV2,192 
Liabilities
Repurchase agreements (n)$— (375)— (375)
Derivatives (m)(1)— — (1)
Total pension plan assets   $4,476 
The table below presents the fair value of plan assets valued at NAV by category for our Combined Pension Plan at December 31, 2024 and 2023.
 Fair Value of Plan Assets Valued at NAV
 
Combined Pension Plan
As of December 31,
20242023
 (Dollars in millions)
Investment grade bonds (a)$72 105 
High yield bonds (b)340 110 
Emerging market bonds (c)69 — 
U.S. stocks (d)51 
Non-U.S. stocks (e)529 412 
Emerging market stocks (f)10 
Private equity (g)253 272 
Private debt (h)398 421 
Market neutral hedge funds (i)85 77 
Directional hedge funds (j)108 124 
Real estate (k)218 265 
Multi-asset strategies (l)— 27 
Cash equivalents and short-term investments (o)277 318 
Total investments valued at NAV$2,359 2,192 
Schedule of gross notional exposure of the derivative instruments directly held by the plans
 Gross Notional Exposure
 Combined Pension Plan
Years Ended December 31,
 20242023
 (Dollars in millions)
Derivative instruments:  
Exchange-traded U.S. equity futures$212 60 
Exchange-traded Treasury and other interest rate futures795 1,136 
Exchange-traded Foreign currency futures— 
Interest rate swaps149 214 
Credit default swaps124 72 
Index swaps701 94 
Foreign exchange forwards47 57 
Options15 32 
Schedule of changes in fair value of defined benefit plans' Level 3 assets
The table below presents a rollforward of the Combined Pension Plan assets valued using Level 3 inputs:
 
Combined Pension Plan Assets Valued
Using Level 3 Inputs
 High
Yield
Bonds
U.S.
Stocks
Non-U.S. Stocks
Total
 (Dollars in millions)
Balance at December 31, 2022$— 
Dispositions(2)— — (2)
Actual return on plan assets— — 
Balance at December 31, 2023— 
Acquisition— — 
Actual return on plan assets— — — — 
Balance at December 31, 2024$
Schedule of the unfunded status of the benefit plans
The following table presents the unfunded status of the Combined Pension Plan and post-retirement benefit plans:
 Combined Pension PlanPost-Retirement
Benefit Plans
 Years Ended December 31,Years Ended December 31,
 2024202320242023
 (Dollars in millions)
Benefit obligation$(4,816)(5,212)(1,750)(1,919)
Fair value of plan assets4,201 4,476 
Unfunded status(615)(736)(1,749)(1,918)
Current portion of unfunded status— — (186)(193)
Non-current portion of unfunded status$(615)(736)(1,563)(1,725)
Schedule of items not recognized as a component of net periodic benefits expense
The following table presents cumulative items not recognized as a component of net periodic benefits expense as of December 31, 2023, items recognized as a component of net periodic benefits expense in 2024, additional items deferred during 2024 and cumulative items not recognized as a component of net periodic benefits expense as of December 31, 2024. The items not recognized as a component of net periodic benefits expense have been recorded on our consolidated balance sheets in accumulated other comprehensive loss:

 As of and for the Years Ended December 31,
2023Recognition
of Net
Periodic
Benefits
Expense
DeferralsNet
Change in
AOCL
2024
 (Dollars in millions)
Accumulated other comprehensive (loss) income     
Pension plans:     
Net actuarial (loss) gain$(1,819)108 (48)60 (1,759)
Settlement charge383 — — — 383 
Prior service benefit (cost)10 (7)— (7)
Deferred income tax benefit (expense)381 (25)14 (11)370 
Total pension plans(1,045)76 (34)42 (1,003)
Post-retirement benefit plans:     
Net actuarial gain (loss)337 (17)84 67 404 
Prior service benefit (cost)29 (8)— (8)21 
Curtailment loss— — — 
Deferred income tax (expense) benefit(94)(21)(15)(109)
Total post-retirement benefit plans276 (19)63 44 320 
Total accumulated other comprehensive (loss) income$(769)57 29 86 (683)
The following table presents cumulative items not recognized as a component of net periodic benefits expense as of December 31, 2022, items recognized as a component of net periodic benefits expense in 2023, additional items deferred during 2023 and cumulative items not recognized as a component of net periodic benefits expense as of December 31, 2023. The items not recognized as a component of net periodic benefits expense have been recorded on our consolidated balance sheets in accumulated other comprehensive loss:

 As of and for the Years Ended December 31,
 2022Recognition
of Net
Periodic
Benefits
Expense
DeferralsNet
Change in
AOCL
2023
 (Dollars in millions)
Accumulated other comprehensive (loss) income     
Pension plans:     
Net actuarial (loss) gain$(1,752)80 (147)(67)(1,819)
Settlement charge383 — — — 383 
Prior service benefit (cost)17 (7)— (7)10 
Deferred income tax benefit (expense)367 (23)37 14 381 
Total pension plans(985)50 (110)(60)(1,045)
Post-retirement benefit plans:     
Net actuarial gain (loss)371 (20)(14)(34)337 
Prior service benefit (cost)37 (8)— (8)29 
Curtailment loss— — — 
Deferred income tax (expense) benefit(104)10 (94)
Total post-retirement benefit plans308 (21)(11)(32)276 
Total accumulated other comprehensive (loss) income$(677)29 (121)(92)(769)
v3.25.0.1
Stock-based Compensation (Tables)
12 Months Ended
Dec. 31, 2024
Share-Based Payment Arrangement [Abstract]  
Schedule of restricted stock and restricted stock unit awards activity
The following table summarizes activity involving restricted stock and restricted stock unit awards for the year ended December 31, 2024:

Number of
Shares
Weighted-
Average
Grant Date
Fair Value
 (in thousands) 
Non-vested at December 31, 2023
28,052 $6.82 
Granted14,274 1.69 
Vested(8,579)6.70 
Forfeited(5,587)12.25 
Non-vested at December 31, 2024
28,160 3.18 
v3.25.0.1
Loss Per Common Share (Tables)
12 Months Ended
Dec. 31, 2024
Earnings Per Share [Abstract]  
Schedule of basic and diluted loss per common share
Basic and diluted loss per common share for the years ended December 31, 2024, 2023 and 2022 were calculated as follows:

 Years Ended December 31,
 202420232022
 (Dollars in millions, except per share amounts, shares in thousands)
Loss (numerator)   
Net loss $(55)(10,298)(1,548)
Net loss applicable to common stock for computing basic loss per common share(55)(10,298)(1,548)
Net loss as adjusted for purposes of computing diluted loss per common share$(55)(10,298)(1,548)
Shares (denominator):  
Weighted-average number of shares:   
Outstanding during period1,014,554 1,006,787 1,028,069 
Non-vested restricted stock(26,874)(23,706)(20,552)
Weighted average shares outstanding for computing basic loss per common share987,680 983,081 1,007,517 
Incremental common shares attributable to dilutive securities:   
Shares issuable under convertible securities— — — 
Shares issuable under incentive compensation plans— — — 
Number of shares as adjusted for purposes of computing diluted loss per common share987,680 983,081 1,007,517 
Basic loss per common share$(0.06)(10.48)(1.54)
Diluted loss per common share(1)
$(0.06)(10.48)(1.54)
______________________________________________________________________________
(1)For the years ended December 31, 2024, December 31, 2023, and December 31, 2022, we excluded from the calculation of diluted loss per share 7.3 million shares, 0.3 million shares and 3.8 million shares, respectively, potentially issuable under incentive compensation plans or convertible securities, as their effect, if included, would have been anti-dilutive due to our net loss position.
v3.25.0.1
Fair Value of Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2024
Fair Value Disclosures [Abstract]  
Schedule of the three input levels in the hierarchy of fair value measurements
The three input levels in the hierarchy of fair value measurements are defined by the FASB generally as follows:
Input LevelDescription of Input
Level 1Observable inputs such as quoted market prices in active markets.
Level 2Inputs other than quoted prices in active markets that are either directly or indirectly observable.
Level 3Unobservable inputs in which little or no market data exists.
Schedule of carrying amounts and estimated fair values of long-term debt, excluding capital lease obligations, and input levels to determine fair values
The following table presents the carrying amounts and estimated fair values of our following financial assets and liabilities as of December 31, 2024 and 2023, as well as the input level used to determine the fair values indicated below:
  As of December 31, 2024As of December 31, 2023
 Input
Level
Carrying
Amount
Fair ValueCarrying
Amount
Fair Value
  (Dollars in millions)
Long-term debt, excluding finance lease and other obligations
2$17,652 17,127 19,703 13,304 
Indemnifications related to the sale of the Latin American business(1)
387 84 86 86 
______________________________________________________________________
(1)Non-recurring fair value recorded in connection with the sale of our Latin American business was measured as of August 1, 2022. See Note 2—Divestitures of the Latin American, ILEC and EMEA Businesses for further details.
v3.25.0.1
Derivative Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of reclassifications out of accumulated other comprehensive income (loss) by component
The amount of realized losses reclassified from accumulated other comprehensive loss to the statement of operations consists of the following (in millions):

Derivatives designated as hedging instruments
Cash flow hedging contracts
Year Ended December 31, 2022$22 
The table below presents further information about our reclassifications out of accumulated other comprehensive loss by component for the year ended December 31, 2024:

Year Ended December 31, 2024(Decrease) Increase
in Net Loss
Affected Line Item in Consolidated Statement of Operations
(Dollars in millions) 
Amortization of pension & post-retirement plans (1)
  
Net actuarial loss$91Other income (expense), net
Prior service cost(15)Other income (expense), net
Total before tax76  
Income tax benefit(19)Income tax (benefit) expense
Net of tax$57  
________________________________________________________________________
(1)See Note 11—Employee Benefits for additional information on our net periodic benefit (expense) income related to our pension and post-retirement plans.
The table below presents further information about our reclassifications out of accumulated other comprehensive loss by component for the year ended December 31, 2023:
Year Ended December 31, 2023(Decrease) Increase
in Net Loss
Affected Line Item in Consolidated Statement of Operations
 (Dollars in millions) 
Amortization of pension & post-retirement plans (1)
Net actuarial loss$82 Other income (expense), net
Prior service cost
(15)Other income (expense), net
Total before tax67  
Income tax benefit(16)Income tax (benefit) expense
Net of tax$51  
Year Ended December 31, 2023Reclassification out of Accumulated Other Comprehensive LossAffected line item in Consolidated Balance Sheets and Consolidated Statement of Operations
Reclassification of realized loss on foreign currency translation to valuation allowance within assets held for sale(2)
$389 
Assets held for sale
Reclassification of realized loss on foreign currency translation to loss on sale of business(3)
(7)
Net loss (gain) on sale of businesses
Subtotal reclassification of realized loss on foreign currency
382 
Reclassification of net actuarial loss to valuation allowance within assets held for sale(2)
(24)
Assets held for sale
Reclassification of net actuarial gain to loss on sale of business(3)
Net loss (gain) on sale of businesses
Subtotal reclassification of net actuarial loss
(22)
Income tax benefit
Income tax expense
Net of tax$360 
________________________________________________________________________
(1)See Note 11—Employee Benefits for additional information on our net periodic benefit (expense) income related to our pension and post-retirement plans.
(2)Recognized in net income through net loss (gain) on sale of business for the year ended December 31, 2022 and included in our valuation allowance in assets held for sale as of December 31, 2022.
(3)(Decrease) increase to net loss for the year ended December 31, 2023.
v3.25.0.1
Income Taxes (Tables)
12 Months Ended
Dec. 31, 2024
Income Tax Disclosure [Abstract]  
Schedule of components of income tax (benefit) expense for income tax
The components of the income tax (benefit) expense are as follows:

 Years Ended December 31,
 202420232022
 (Dollars in millions)
Income tax (benefit) expense:   
Federal   
Current$87 838 
Deferred(251)(2)(332)
State   
Current(29)(6)283 
Deferred15 55 (191)
Foreign   
Current— 32 
Deferred(73)
Total income tax (benefit) expense$(175)61 557 
Income tax (benefit) expense was allocated as follows:
 Years Ended December 31,
 202420232022
 (Dollars in millions)
Income tax (benefit) expense in the consolidated statements of operations:   
Attributable to income$(175)61 557 
Stockholders' equity:   
Tax effect of the change in accumulated other comprehensive loss$26 (21)297 
Schedule of reconciliation of the statutory federal income tax rate to effective income tax rate
The following is a reconciliation from the statutory federal income tax rate to our effective income tax rate:
 Years Ended December 31,
 202420232022
 (Percentage of pre-tax loss)
Statutory federal income tax rate21.0 %21.0 %21.0 %
State income taxes, net of federal income tax benefit4.1 %(0.2)%(8.8)%
Goodwill impairment— %(21.9)%(68.9)%
Change in liability for unrecognized tax position(16.8)%(0.1)%(0.2)%
Legislative changes to Global Intangible Low-Taxes Income ("GILTI")(1.2)%— %— %
Nondeductible executive stock compensation(4.9)%— %(0.1)%
Change in valuation allowance2.3 %1.3 %0.9 %
Net foreign income taxes(2.3)%— %3.0 %
Research and development credits6.5 %0.1 %1.1 %
Divestitures of businesses(1)
— %(0.4)%(4.0)%
Indemnification refunds11.2 %— %— %
Cancellation of debt income59.3 %— %— %
Other, net(3.1)%(0.4)%(0.2)%
Effective income tax rate76.1 %(0.6)%(56.2)%
_______________________________________________________________________________
(1)Includes GILTI incurred as a result of the sale of our Latin American business.
Schedule of components of deferred tax assets and deferred tax liabilities
The tax effects of temporary differences that gave rise to significant portions of the deferred tax assets and deferred tax liabilities were as follows:
 As of December 31,
 20242023
 (Dollars in millions)
Deferred tax assets  
Post-retirement and pension benefit costs$583 659 
Net operating loss carryforwards649 794 
Other employee benefits22 23 
Other744 511 
Gross deferred tax assets1,998 1,987 
Less valuation allowance(343)(399)
Net deferred tax assets1,655 1,588 
Deferred tax liabilities  
Property, plant and equipment, primarily due to depreciation differences(3,447)(3,332)
Goodwill and other intangible assets(1,002)(1,271)
Gross deferred tax liabilities(4,449)(4,603)
Net deferred tax liability$(2,794)(3,015)
Schedule of the reconciliation of the change in gross unrecognized tax benefits
A reconciliation of the change in our gross unrecognized tax benefits (excluding both interest and any related federal benefit) for the years ended December 31, 2024 and 2023 is as follows:
20242023
 (Dollars in millions)
Unrecognized tax benefits at beginning of year$1,424 1,318 
Decrease in tax positions of prior periods netted against deferred tax assets(4)(411)
Decrease in tax positions taken in the current year(64)(73)
Increase in tax positions taken in the prior year65 752 
Decrease due to payments/settlements— (1)
Decrease from the lapse of statute of limitations(158)(52)
Decrease related to divestitures of businesses— (109)
Unrecognized tax benefits at end of year$1,263 1,424 
v3.25.0.1
Segment Information (Tables)
12 Months Ended
Dec. 31, 2024
Segment Reporting [Abstract]  
Schedule of segment information
The following tables summarize our segment results for 2024, 2023 and 2022 based on the segment categorization we were operating under at December 31, 2024.
Year Ended December 31, 2024
BusinessMass Markets
(Dollars in millions)
Segment revenue$10,363 2,745 
Segment expense
Cost of services and products3,063 69 
Headcount costs1,237 651 
Non-headcount costs652 572 
Total expense4,952 1,292 
Total segment adjusted EBITDA$5,411 1,453 

Year Ended December 31, 2023
BusinessMass Markets
(Dollars in millions)
Segment revenue$11,583 2,974 
Segment expense
Cost of services and products3,248 79 
Headcount costs1,473 768 
Non-headcount costs807 610 
Total expense5,528 1,457 
Total segment adjusted EBITDA$6,055 1,517 
Year Ended December 31, 2022
BusinessMass Markets
(Dollars in millions)
Segment revenue$13,099 4,379 
Segment expense
Cost of services and products3,436 121 
Headcount costs1,584 945 
Non-headcount costs879 703 
Total expense5,899 1,769 
Total segment adjusted EBITDA$7,200 2,610 
Schedule of reconciliation from segment income to consolidated net income (loss)
The following table reconciles total segment adjusted EBITDA to net loss for the years ended December 31, 2024, 2023 and 2022:
 Years Ended December 31,
 202420232022
 (Dollars in millions)
Total segment adjusted EBITDA$6,864 7,572 9,810 
Depreciation and amortization(2,956)(2,985)(3,239)
Goodwill impairment— (10,693)(3,271)
Other unallocated expense(3,419)(3,426)(3,107)
Stock-based compensation(29)(52)(98)
Operating income (loss)460 (9,584)95 
Total other expense, net(690)(653)(1,086)
Loss before income taxes(230)(10,237)(991)
Income tax (benefit) expense(175)61 557 
Net loss$(55)(10,298)(1,548)
v3.25.0.1
Commitments, Contingencies and Other Items (Tables)
12 Months Ended
Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract]  
Schedule of future rental commitments for right-of-way agreements
At December 31, 2024, our future rental commitments and Right-of-Way ("ROW") agreements were as follows:
 (Dollars in millions)
2025$204 
202672 
202771 
202867 
202954 
2030 and thereafter717 
Total future minimum payments$1,185 
v3.25.0.1
Other Financial Information (Tables)
12 Months Ended
Dec. 31, 2024
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Schedule of components of other current assets
The following table presents details of other current assets reflected in our consolidated balance sheets:
 As of December 31,
 20242023
 (Dollars in millions)
Prepaid expenses$372 395 
Income tax receivable483 273 
Materials, supplies and inventory146 209 
Contract assets16 19 
Contract acquisition costs102 107 
Contract fulfillment costs109 102 
Assets held for sale
24 104 
Other22 14 
Total other current assets
$1,274 1,223 
v3.25.0.1
Accumulated Other Comprehensive Loss (Tables)
12 Months Ended
Dec. 31, 2024
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Schedule of the entity's accumulated other comprehensive loss by component
The table below summarizes changes in accumulated other comprehensive loss recorded on our consolidated balance sheet by component for the year ended December 31, 2024:

Pension
Plans
Post-Retirement
Benefit
Plans
Foreign Currency
Translation
Adjustment
and Other
Total
 (Dollars in millions)
Balance at December 31, 2023$(1,045)276 (41)(810)
Other comprehensive (loss) income before reclassifications(34)63 30 
Amounts reclassified from accumulated other comprehensive income (loss)76 (19)— 57 
Net current-period other comprehensive income42 44 87 
Balance at December 31, 2024$(1,003)320 (40)(723)
The table below summarizes changes in accumulated other comprehensive loss recorded on our consolidated balance sheet by component for the year ended December 31, 2023:
Pension
Plans
Post-Retirement
Benefit
Plans
Foreign Currency
Translation
Adjustment
and Other
Total
 (Dollars in millions)
Balance at December 31, 2022$(985)308 (422)(1,099)
Other comprehensive loss before reclassifications(110)(11)(1)(122)
Amounts reclassified from accumulated other comprehensive income (loss)50 (21)382 411 
Net current-period other comprehensive (loss) income(60)(32)381 289 
Balance at December 31, 2023$(1,045)276 (41)(810)
Schedule of reclassifications out of accumulated other comprehensive loss by component
The amount of realized losses reclassified from accumulated other comprehensive loss to the statement of operations consists of the following (in millions):

Derivatives designated as hedging instruments
Cash flow hedging contracts
Year Ended December 31, 2022$22 
The table below presents further information about our reclassifications out of accumulated other comprehensive loss by component for the year ended December 31, 2024:

Year Ended December 31, 2024(Decrease) Increase
in Net Loss
Affected Line Item in Consolidated Statement of Operations
(Dollars in millions) 
Amortization of pension & post-retirement plans (1)
  
Net actuarial loss$91Other income (expense), net
Prior service cost(15)Other income (expense), net
Total before tax76  
Income tax benefit(19)Income tax (benefit) expense
Net of tax$57  
________________________________________________________________________
(1)See Note 11—Employee Benefits for additional information on our net periodic benefit (expense) income related to our pension and post-retirement plans.
The table below presents further information about our reclassifications out of accumulated other comprehensive loss by component for the year ended December 31, 2023:
Year Ended December 31, 2023(Decrease) Increase
in Net Loss
Affected Line Item in Consolidated Statement of Operations
 (Dollars in millions) 
Amortization of pension & post-retirement plans (1)
Net actuarial loss$82 Other income (expense), net
Prior service cost
(15)Other income (expense), net
Total before tax67  
Income tax benefit(16)Income tax (benefit) expense
Net of tax$51  
Year Ended December 31, 2023Reclassification out of Accumulated Other Comprehensive LossAffected line item in Consolidated Balance Sheets and Consolidated Statement of Operations
Reclassification of realized loss on foreign currency translation to valuation allowance within assets held for sale(2)
$389 
Assets held for sale
Reclassification of realized loss on foreign currency translation to loss on sale of business(3)
(7)
Net loss (gain) on sale of businesses
Subtotal reclassification of realized loss on foreign currency
382 
Reclassification of net actuarial loss to valuation allowance within assets held for sale(2)
(24)
Assets held for sale
Reclassification of net actuarial gain to loss on sale of business(3)
Net loss (gain) on sale of businesses
Subtotal reclassification of net actuarial loss
(22)
Income tax benefit
Income tax expense
Net of tax$360 
________________________________________________________________________
(1)See Note 11—Employee Benefits for additional information on our net periodic benefit (expense) income related to our pension and post-retirement plans.
(2)Recognized in net income through net loss (gain) on sale of business for the year ended December 31, 2022 and included in our valuation allowance in assets held for sale as of December 31, 2022.
(3)(Decrease) increase to net loss for the year ended December 31, 2023.
v3.25.0.1
Dividends (Tables)
12 Months Ended
Dec. 31, 2024
Dividends, Common Stock [Abstract]  
Schedule of dividends declared
Our Board declared the following dividends payable in 2022:
Date DeclaredRecord DateDividend
Per Share
Total AmountPayment Date
   (in millions) 
August 18, 20228/30/2022$0.25 $253 9/9/2022
May 19, 20225/31/20220.25 253 6/10/2022
February 24, 20223/8/20220.25 253 3/18/2022
v3.25.0.1
Background and Summary of Significant Accounting Policies (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 17, 2024
Jan. 01, 2024
Feb. 25, 2019
Accounting Policies [Line Items]            
Advertising expense $ 94 $ 87 $ 62      
Book overdrafts $ 1 $ 0        
Accounts receivable, period past due (in days) 30 days          
Common stock, par value (in dollars per share) $ 0.00 $ 1.00   $ 1.00    
Unissued shares of century link common stock (in shares) 41,000,000          
Preferred stock dividends (in dollars per share) $ 25          
Number of shares issued per share of common stock           1
Depreciation $ 1,900 $ 1,900 $ 2,100      
Diluted loss per common share (in dollars per share) $ (0.06) $ (10.48) $ (1.54)      
Service Life            
Accounting Policies [Line Items]            
Depreciation $ (63)          
Depreciation, net of tax $ (48)          
Diluted loss per common share (in dollars per share) $ 0.05          
Fiber Network Assets            
Accounting Policies [Line Items]            
Property, plant and equipment, useful life (in years)   25 years     30 years  
Capitalized Software            
Accounting Policies [Line Items]            
Estimated useful life (in years) 7 years          
Minimum            
Accounting Policies [Line Items]            
Contract term (in years) 1 year          
Minimum | Customer Relationships            
Accounting Policies [Line Items]            
Estimated useful life (in years) 7 years          
Minimum | Other Intangible Assets            
Accounting Policies [Line Items]            
Estimated useful life (in years) 9 years          
Maximum            
Accounting Policies [Line Items]            
Contract term (in years) 5 years          
Customer relationship period for revenue recognition (in years) 20 years          
Maximum | Customer Relationships            
Accounting Policies [Line Items]            
Estimated useful life (in years) 14 years          
Maximum | Other Intangible Assets            
Accounting Policies [Line Items]            
Estimated useful life (in years) 20 years          
Weighted Average | Mass Markets            
Accounting Policies [Line Items]            
Length of customer life (in months) 50 months          
Weighted Average | Business            
Accounting Policies [Line Items]            
Length of customer life (in months) 35 months          
v3.25.0.1
Divestitures of the Latin American, ILEC and EMEA Businesses (Details)
3 Months Ended 12 Months Ended
Nov. 01, 2023
USD ($)
Oct. 31, 2023
USD ($)
Oct. 31, 2022
USD ($)
Oct. 03, 2022
USD ($)
state
Aug. 01, 2022
USD ($)
Dec. 31, 2024
USD ($)
state
Jun. 30, 2023
USD ($)
Mar. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2024
USD ($)
state
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Jul. 25, 2021
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                          
Gain (loss) on disposal groups held for sale                   $ 0 $ 0 $ (40,000,000)  
Goodwill           $ 1,964,000,000     $ 12,657,000,000 1,964,000,000 1,964,000,000 12,657,000,000  
Reclassification of realized loss on foreign currency translation $ 382,000,000       $ 112,000,000         0 382,000,000 112,000,000  
Goodwill impairment   $ 1,900,000,000       $ 0 $ 8,800,000,000     $ 0 10,693,000,000 3,271,000,000  
Purchaser of ILEC                          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                          
Purchase obligation       $ 373,000,000                  
Purchase obligation period (in years)       3 years                  
Payments for purchase of services               $ 89,000,000          
Pension Plans                          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                          
Reclassified of net actuarial loss and prior service credit, net of tax       $ 403,000,000                  
Purchaser of ILEC                          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                          
Purchase obligation       $ 67,000,000                  
Purchase obligation period (in years)       3 years                  
ILEC Business                          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                          
Number of states in which the business is conducted | state           17       17      
Disposal Group, Held-for-sale, Not Discontinued Operations | Latin American Business | Level 3 Parent, LLC                          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                          
Cash consideration from disposal of business                         $ 2,700,000,000
Disposal Group, Held-for-sale, Not Discontinued Operations | ILEC Business                          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                          
Cash consideration from disposal of business       $ 7,500,000,000                  
Long term debt, net of discounts       1,500,000,000                  
Disposal Group, Held-for-sale, Not Discontinued Operations | EMEA Business                          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                          
Goodwill impairment     $ 43,000,000                    
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Latin American Business                          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                          
Gain (loss) on disposal groups held for sale                       597,000,000  
Indemnifications related to the sale of businesses                 86,000,000     86,000,000  
Net assets         1,900,000,000                
Property, plant and equipment, net accumulated depreciation         1,700,000,000                
Goodwill         245,000,000                
Accumulated amortization         140,000,000                
Deferred income tax liabilities         $ 154,000,000                
Disposal Group, Disposed of by Sale, Not Discontinued Operations | ILEC Business                          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                          
Gain (loss) on disposal groups held for sale                       176,000,000  
Indemnifications related to the sale of businesses                 89,000,000     89,000,000  
Net assets       4,800,000,000                  
Property, plant and equipment, net accumulated depreciation       3,600,000,000                  
Goodwill       $ 2,600,000,000                  
Number of states in which the business is conducted | state       20                  
Consideration after closing adjustments       $ 400,000,000                  
Long term debt, net of discounts       1,400,000,000                  
Net proceeds from sales of colocation business and data centers       $ 5,600,000,000                  
Disposal Group, Disposed of by Sale, Not Discontinued Operations | EMEA Business                          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                          
Gain (loss) on disposal groups held for sale                     $ (102,000,000) $ (660,000,000)  
Net assets 2,100,000,000                        
Property, plant and equipment, net accumulated depreciation 2,000,000,000                        
Accumulated amortization 107,000,000                        
Goodwill impairment                 $ 43,000,000        
Disposal Group, Disposed of by Sale, Not Discontinued Operations | EMEA Business | Level 3 Parent, LLC                          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                          
Cash consideration from disposal of business $ 1,700,000,000                        
v3.25.0.1
Goodwill, Customer Relationships and Other Intangible Assets - Schedule of Goodwill and Intangible Assets (Details) - USD ($)
3 Months Ended 12 Months Ended
Oct. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Jun. 30, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Mar. 31, 2024
Mar. 31, 2023
Finite-Lived Intangible Assets [Line Items]                  
Goodwill   $ 1,964,000,000 $ 1,964,000,000   $ 1,964,000,000 $ 1,964,000,000 $ 12,657,000,000    
Indefinite-lived intangible assets   9,000,000 9,000,000   9,000,000 9,000,000      
Finite-lived intangible assets, net   4,797,000,000     4,797,000,000        
Total other intangible assets, net   4,806,000,000 5,470,000,000   4,806,000,000 5,470,000,000      
Goodwill impairment $ 1,900,000,000 0   $ 8,800,000,000 0 10,693,000,000 $ 3,271,000,000    
Customer Relationships                  
Finite-Lived Intangible Assets [Line Items]                  
Finite-lived intangible assets, net   3,196,000,000 3,811,000,000   3,196,000,000 3,811,000,000      
Accumulated amortization   4,504,000,000 4,248,000,000   4,504,000,000 4,248,000,000      
Loss on sale of intangible assets     73,000,000     121,000,000      
Capitalized Software                  
Finite-Lived Intangible Assets [Line Items]                  
Finite-lived intangible assets, net   1,529,000,000 1,564,000,000   1,529,000,000 1,564,000,000      
Accumulated amortization   4,067,000,000 4,045,000,000   4,067,000,000 4,045,000,000      
Patents and Other                  
Finite-Lived Intangible Assets [Line Items]                  
Finite-lived intangible assets, net   72,000,000 86,000,000   72,000,000 86,000,000      
Accumulated amortization   $ 86,000,000 $ 72,000,000   $ 86,000,000 $ 72,000,000      
Fully Amortized and Retired Capitalized Software                  
Finite-Lived Intangible Assets [Line Items]                  
Intangible assets, gross carrying value               $ 352,000,000 $ 183,000,000
Fully Amortized and Retired Trade Names                  
Finite-Lived Intangible Assets [Line Items]                  
Intangible assets, gross carrying value               $ 153,000,000 $ 130,000,000
v3.25.0.1
Goodwill, Customer Relationships and Other Intangible Assets - Additional Information (Details)
3 Months Ended 12 Months Ended
Oct. 31, 2023
USD ($)
reporting_unit
Oct. 31, 2022
USD ($)
reporting_unit
Dec. 31, 2024
USD ($)
Jun. 30, 2023
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2024
USD ($)
segement
Dec. 31, 2024
USD ($)
reporting_unit
Dec. 31, 2024
USD ($)
segment
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]                      
Intangible assets, gross (including goodwill)     $ 15,400,000,000   $ 15,400,000,000 $ 15,400,000,000 $ 15,400,000,000 $ 15,400,000,000 $ 15,400,000,000 $ 15,800,000,000  
Impairment of indefinite-lived intangible assets           0       0 $ 0
Number of reportable segments             2   2    
Number of reporting units | reporting_unit 3 4           3      
Finite-Lived Intangible Assets [Line Items]                      
Goodwill impairment $ 1,900,000,000   $ 0 $ 8,800,000,000   0       10,693,000,000 3,271,000,000
Control premium (as a percent) 2.00% 59.00%                  
Acquired finite-lived intangible assets, weighted average useful life (in years)         5 years            
Amortization of intangible assets           $ 1,100,000,000       $ 1,100,000,000 $ 1,100,000,000
Customer Relationships                      
Finite-Lived Intangible Assets [Line Items]                      
Acquired finite-lived intangible assets, weighted average useful life (in years)         6 years            
Capitalized Software                      
Finite-Lived Intangible Assets [Line Items]                      
Acquired finite-lived intangible assets, weighted average useful life (in years)         4 years            
Disposal Group, Held-for-sale, Not Discontinued Operations | EMEA Business                      
Finite-Lived Intangible Assets [Line Items]                      
Goodwill impairment   $ 43,000,000                  
NA Business                      
Finite-Lived Intangible Assets [Line Items]                      
Goodwill impairment   3,200,000,000                  
Mass Markets                      
Finite-Lived Intangible Assets [Line Items]                      
Goodwill impairment   $ 0                  
Goodwill, impairment (as a percent)   97.00%                  
EMEA                      
Finite-Lived Intangible Assets [Line Items]                      
Goodwill impairment   $ 0                  
Goodwill, impairment (as a percent)   171.00%                  
APAC                      
Finite-Lived Intangible Assets [Line Items]                      
Goodwill impairment   $ 0                  
Goodwill, impairment (as a percent)   101.00%                  
Measurement Input, Revenue Multiple                      
Finite-Lived Intangible Assets [Line Items]                      
Goodwill impairment, measurement input (as a percent)   2.5                  
Measurement Input, Revenue Multiple | Minimum                      
Finite-Lived Intangible Assets [Line Items]                      
Goodwill impairment, measurement input (as a percent) 1.5 1.8   1.5              
Measurement Input, Revenue Multiple | Maximum                      
Finite-Lived Intangible Assets [Line Items]                      
Goodwill impairment, measurement input (as a percent) 3.5 4.6   4.3              
Measurement Input, EBITDA Multiple                      
Finite-Lived Intangible Assets [Line Items]                      
Goodwill impairment, measurement input (as a percent)   5.5                  
Measurement Input, EBITDA Multiple | Minimum                      
Finite-Lived Intangible Assets [Line Items]                      
Goodwill impairment, measurement input (as a percent) 4.8 4.7   4.6              
Measurement Input, EBITDA Multiple | Maximum                      
Finite-Lived Intangible Assets [Line Items]                      
Goodwill impairment, measurement input (as a percent) 8.4 10.8   10.5              
v3.25.0.1
Goodwill, Customer Relationships and Other Intangible Assets - Cost of Equity (Details)
Oct. 31, 2022
Mass Markets  
Finite-Lived Intangible Assets [Line Items]  
Weighted average cost of capital 9.40%
After-tax cost of debt 4.70%
Cost of equity 14.00%
NA Business  
Finite-Lived Intangible Assets [Line Items]  
Weighted average cost of capital 9.40%
After-tax cost of debt 4.70%
Cost of equity 14.00%
EMEA  
Finite-Lived Intangible Assets [Line Items]  
Weighted average cost of capital 9.80%
After-tax cost of debt 5.10%
Cost of equity 14.40%
APAC  
Finite-Lived Intangible Assets [Line Items]  
Weighted average cost of capital 11.30%
After-tax cost of debt 6.30%
Cost of equity 16.20%
v3.25.0.1
Goodwill, Customer Relationships and Other Intangible Assets - Rollforward Goodwill (Details) - USD ($)
3 Months Ended 12 Months Ended
Oct. 31, 2023
Dec. 31, 2024
Jun. 30, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Goodwill Activity            
As of beginning of period       $ 1,964,000,000 $ 12,657,000,000  
Impairment $ (1,900,000,000) $ 0 $ (8,800,000,000) 0 (10,693,000,000) $ (3,271,000,000)
As of end of period   1,964,000,000   1,964,000,000 1,964,000,000 12,657,000,000
Goodwill accumulated impairment loss   21,700,000,000   21,700,000,000 21,700,000,000 11,000,000,000.0
Business            
Goodwill Activity            
As of beginning of period       0 7,906,000,000  
Impairment         (7,906,000,000)  
As of end of period   0   0 0 7,906,000,000
Mass Markets            
Goodwill Activity            
As of beginning of period       1,964,000,000 4,751,000,000  
Impairment         (2,787,000,000)  
As of end of period   $ 1,964,000,000   $ 1,964,000,000 $ 1,964,000,000 $ 4,751,000,000
v3.25.0.1
Goodwill, Customer Relationships and Other Intangible Assets - Future Amortization Expense (Details)
$ in Millions
Dec. 31, 2024
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
2025 $ 926
2026 875
2027 788
2028 717
2029 488
2030 and thereafter 1,003
Total finite-lived intangible assets future amortization expense $ 4,797
v3.25.0.1
Revenue Recognition - Revenue by Segment, Sales Channel and Product Category (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disaggregation of Revenue [Line Items]      
Total Revenue $ 13,108 $ 14,557 $ 17,478
Adjustments for Non-ASC 606 Revenue (979) (1,036) (1,370)
Total Revenue from Contracts with Customers 12,129 13,521 16,108
Goods and services transferred at a point in time      
Disaggregation of Revenue [Line Items]      
Total Revenue from Contracts with Customers 136 178 154
Services performed over time      
Disaggregation of Revenue [Line Items]      
Total Revenue from Contracts with Customers 11,993 13,343 15,954
Business      
Disaggregation of Revenue [Line Items]      
Total Revenue 10,363 11,583 13,099
Mass Markets      
Disaggregation of Revenue [Line Items]      
Total Revenue 2,745 2,974 4,379
Operating Segments | Business      
Disaggregation of Revenue [Line Items]      
Total Revenue 10,363 11,583 13,099
Adjustments for Non-ASC 606 Revenue (830) (858) (1,017)
Total Revenue from Contracts with Customers 9,533 10,725 12,082
Operating Segments | Business | Grow      
Disaggregation of Revenue [Line Items]      
Total Revenue 4,373 4,494 4,618
Adjustments for Non-ASC 606 Revenue (657) (654) (757)
Total Revenue from Contracts with Customers 3,716 3,840 3,861
Operating Segments | Business | Nurture      
Disaggregation of Revenue [Line Items]      
Total Revenue 2,961 3,493 4,128
Adjustments for Non-ASC 606 Revenue (19) (25) (23)
Total Revenue from Contracts with Customers 2,942 3,468 4,105
Operating Segments | Business | Harvest      
Disaggregation of Revenue [Line Items]      
Total Revenue 2,271 2,679 3,411
Adjustments for Non-ASC 606 Revenue (148) (170) (226)
Total Revenue from Contracts with Customers 2,123 2,509 3,185
Operating Segments | Business | Other      
Disaggregation of Revenue [Line Items]      
Total Revenue 758 917 942
Adjustments for Non-ASC 606 Revenue (6) (9) (11)
Total Revenue from Contracts with Customers 752 908 931
Operating Segments | Business | Large Enterprise      
Disaggregation of Revenue [Line Items]      
Total Revenue 3,379 3,618 3,827
Adjustments for Non-ASC 606 Revenue (257) (184) (208)
Total Revenue from Contracts with Customers 3,122 3,434 3,619
Operating Segments | Business | Large Enterprise | Grow      
Disaggregation of Revenue [Line Items]      
Total Revenue 1,733 1,709 1,653
Adjustments for Non-ASC 606 Revenue (256) (179) (199)
Total Revenue from Contracts with Customers 1,477 1,530 1,454
Operating Segments | Business | Large Enterprise | Nurture      
Disaggregation of Revenue [Line Items]      
Total Revenue 1,015 1,172 1,274
Adjustments for Non-ASC 606 Revenue 0 0 0
Total Revenue from Contracts with Customers 1,015 1,172 1,274
Operating Segments | Business | Large Enterprise | Harvest      
Disaggregation of Revenue [Line Items]      
Total Revenue 441 537 690
Adjustments for Non-ASC 606 Revenue 0 0 (2)
Total Revenue from Contracts with Customers 441 537 688
Operating Segments | Business | Large Enterprise | Other      
Disaggregation of Revenue [Line Items]      
Total Revenue 190 200 210
Adjustments for Non-ASC 606 Revenue (1) (5) (7)
Total Revenue from Contracts with Customers 189 195 203
Operating Segments | Business | Mid-Market Enterprise      
Disaggregation of Revenue [Line Items]      
Total Revenue 1,887 2,044 2,242
Adjustments for Non-ASC 606 Revenue (34) (36) (40)
Total Revenue from Contracts with Customers 1,853 2,008 2,202
Operating Segments | Business | Mid-Market Enterprise | Grow      
Disaggregation of Revenue [Line Items]      
Total Revenue 841 807 768
Adjustments for Non-ASC 606 Revenue (25) (28) (32)
Total Revenue from Contracts with Customers 816 779 736
Operating Segments | Business | Mid-Market Enterprise | Nurture      
Disaggregation of Revenue [Line Items]      
Total Revenue 690 829 949
Adjustments for Non-ASC 606 Revenue 0 0 0
Total Revenue from Contracts with Customers 690 829 949
Operating Segments | Business | Mid-Market Enterprise | Harvest      
Disaggregation of Revenue [Line Items]      
Total Revenue 320 372 494
Adjustments for Non-ASC 606 Revenue (4) (4) (6)
Total Revenue from Contracts with Customers 316 368 488
Operating Segments | Business | Mid-Market Enterprise | Other      
Disaggregation of Revenue [Line Items]      
Total Revenue 36 36 31
Adjustments for Non-ASC 606 Revenue (5) (4) (2)
Total Revenue from Contracts with Customers 31 32 29
Operating Segments | Business | Public Sector      
Disaggregation of Revenue [Line Items]      
Total Revenue 1,849 1,789 1,863
Adjustments for Non-ASC 606 Revenue (89) (82) (84)
Total Revenue from Contracts with Customers 1,760 1,707 1,779
Operating Segments | Business | Public Sector | Grow      
Disaggregation of Revenue [Line Items]      
Total Revenue 596 473 445
Adjustments for Non-ASC 606 Revenue (85) (81) (79)
Total Revenue from Contracts with Customers 511 392 366
Operating Segments | Business | Public Sector | Nurture      
Disaggregation of Revenue [Line Items]      
Total Revenue 355 399 492
Adjustments for Non-ASC 606 Revenue 0 0 0
Total Revenue from Contracts with Customers 355 399 492
Operating Segments | Business | Public Sector | Harvest      
Disaggregation of Revenue [Line Items]      
Total Revenue 389 383 466
Adjustments for Non-ASC 606 Revenue (4) (1) (3)
Total Revenue from Contracts with Customers 385 382 463
Operating Segments | Business | Public Sector | Other      
Disaggregation of Revenue [Line Items]      
Total Revenue 509 534 460
Adjustments for Non-ASC 606 Revenue 0 0 (2)
Total Revenue from Contracts with Customers 509 534 458
Operating Segments | Business | Wholesale      
Disaggregation of Revenue [Line Items]      
Total Revenue 2,875 3,152 3,605
Adjustments for Non-ASC 606 Revenue (446) (441) (509)
Total Revenue from Contracts with Customers 2,429 2,711 3,096
Operating Segments | Business | Wholesale | Grow      
Disaggregation of Revenue [Line Items]      
Total Revenue 1,048 1,052 991
Adjustments for Non-ASC 606 Revenue (287) (251) (271)
Total Revenue from Contracts with Customers 761 801 720
Operating Segments | Business | Wholesale | Nurture      
Disaggregation of Revenue [Line Items]      
Total Revenue 740 827 1,012
Adjustments for Non-ASC 606 Revenue (19) (25) (23)
Total Revenue from Contracts with Customers 721 802 989
Operating Segments | Business | Wholesale | Harvest      
Disaggregation of Revenue [Line Items]      
Total Revenue 1,079 1,261 1,551
Adjustments for Non-ASC 606 Revenue (140) (165) (215)
Total Revenue from Contracts with Customers 939 1,096 1,336
Operating Segments | Business | Wholesale | Other      
Disaggregation of Revenue [Line Items]      
Total Revenue 8 12 51
Adjustments for Non-ASC 606 Revenue 0 0 0
Total Revenue from Contracts with Customers 8 12 51
Operating Segments | Business | International and Other      
Disaggregation of Revenue [Line Items]      
Total Revenue 373 980 1,562
Adjustments for Non-ASC 606 Revenue (4) (115) (176)
Total Revenue from Contracts with Customers 369 865 1,386
Operating Segments | Business | International and Other | Grow      
Disaggregation of Revenue [Line Items]      
Total Revenue 155 453 761
Adjustments for Non-ASC 606 Revenue (4) (115) (176)
Total Revenue from Contracts with Customers 151 338 585
Operating Segments | Business | International and Other | Nurture      
Disaggregation of Revenue [Line Items]      
Total Revenue 161 266 401
Adjustments for Non-ASC 606 Revenue 0 0 0
Total Revenue from Contracts with Customers 161 266 401
Operating Segments | Business | International and Other | Harvest      
Disaggregation of Revenue [Line Items]      
Total Revenue 42 126 210
Adjustments for Non-ASC 606 Revenue 0 0 0
Total Revenue from Contracts with Customers 42 126 210
Operating Segments | Business | International and Other | Other      
Disaggregation of Revenue [Line Items]      
Total Revenue 15 135 190
Adjustments for Non-ASC 606 Revenue 0 0 0
Total Revenue from Contracts with Customers 15 135 190
Operating Segments | Mass Markets      
Disaggregation of Revenue [Line Items]      
Total Revenue 2,745 2,974 4,379
Adjustments for Non-ASC 606 Revenue (149) (178) (353)
Total Revenue from Contracts with Customers 2,596 2,796 4,026
Operating Segments | Mass Markets | Fiber Broadband      
Disaggregation of Revenue [Line Items]      
Total Revenue 736 637 604
Adjustments for Non-ASC 606 Revenue (13) (16) (18)
Total Revenue from Contracts with Customers 723 621 586
Operating Segments | Mass Markets | Other Broadband      
Disaggregation of Revenue [Line Items]      
Total Revenue 1,167 1,395 2,163
Adjustments for Non-ASC 606 Revenue (105) (126) (200)
Total Revenue from Contracts with Customers 1,062 1,269 1,963
Operating Segments | Mass Markets | Voice and Other      
Disaggregation of Revenue [Line Items]      
Total Revenue 842 942 1,612
Adjustments for Non-ASC 606 Revenue (31) (36) (135)
Total Revenue from Contracts with Customers $ 811 $ 906 $ 1,477
v3.25.0.1
Revenue Recognition - Contract with Customer, Asset and Liability (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Revenue from Contract with Customer [Abstract]    
Customer receivables, less allowance of $50 and $60 $ 1,193 $ 1,256
Contract assets 19 29
Contract liabilities 733 698
Allowance for doubtful accounts receivable $ 50 $ 60
v3.25.0.1
Revenue Recognition - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]      
Revenue recognized $ 443 $ 434  
Contract liabilities   $ 698 $ 715
Minimum      
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]      
Contract term (in years) 1 year    
Maximum      
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]      
Contract term (in years) 5 years    
Weighted Average | Mass Markets      
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]      
Length of customer life (in months) 50 months    
Weighted Average | Business      
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]      
Length of customer life (in months) 35 months    
v3.25.0.1
Revenue Recognition - Remaining Performance Obligation (Details)
$ in Billions
Dec. 31, 2024
USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Remaining performance obligation $ 6.4
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Remaining performance obligation $ 2.9
Remaining performance obligation, satisfaction period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Remaining performance obligation $ 1.7
Remaining performance obligation, satisfaction period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Remaining performance obligation $ 1.8
Remaining performance obligation, satisfaction period
v3.25.0.1
Revenue Recognition - Capitalized Contract Costs (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Acquisition Costs    
Capitalized Contract Cost [Roll Forward]    
Beginning of period balance $ 182 $ 202
Costs incurred 151 136
Amortization (130) (152)
Classified as held for sale   (4)
End of period balance 203 182
Fulfillment Costs    
Capitalized Contract Cost [Roll Forward]    
Beginning of period balance 184 192
Costs incurred 176 157
Amortization (138) (140)
Classified as held for sale   (25)
End of period balance $ 222 $ 184
v3.25.0.1
Revenue Recognition - Governmental Funding (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended 84 Months Ended
Mar. 31, 2022
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2020
Dec. 31, 2021
Government Assistance [Line Items]            
Government Assistance, Income, Increase (Decrease), Statement of Income or Comprehensive Income [Extensible Enumeration]   OPERATING REVENUE OPERATING REVENUE      
Government funding   $ 83 $ 85      
State Universal Service Fund Support Programs            
Government Assistance [Line Items]            
Government assistance (as a percent)   18.00% 17.00%      
CAF II Program            
Government Assistance [Line Items]            
Government funding $ 59         $ 500
RDOF Phase I Program            
Government Assistance [Line Items]            
Government funding     $ 17 $ 17    
Allocated support payments   $ 16     $ 6,400  
Support payments period (in years)         10 years  
Government funding receivable         $ 17  
Government assistance, allocated support payment, each year thereafter   15        
Government assistance, liability   $ 10        
v3.25.0.1
Leases - Lease Expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Leases [Abstract]      
Operating and short-term lease cost $ 446 $ 459 $ 451
Finance lease cost:      
Amortization of right-of-use assets 25 32 37
Interest on lease liability 11 12 15
Total finance lease cost 36 44 52
Total lease cost $ 482 $ 503 $ 503
v3.25.0.1
Leases - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Leases [Abstract]      
Gross rental expense $ 482 $ 503 $ 503
Sublease income 25 25 25
Gross rental income $ 1,000 $ 1,000 $ 1,200
Rental income as percentage of operating revenue (as a percent) 7.00% 7.00% 7.00%
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] OPERATING REVENUE OPERATING REVENUE OPERATING REVENUE
v3.25.0.1
Leases - Supplemental Balance Sheet (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Assets    
Operating lease assets $ 1,119 $ 1,230
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Other, net Other, net
Finance lease assets $ 236 $ 260
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Property, plant and equipment, net of accumulated depreciation of $23,121 and $21,318 Property, plant and equipment, net of accumulated depreciation of $23,121 and $21,318
Total leased assets $ 1,355 $ 1,490
Current    
Operating 253 268
Finance $ 17 $ 16
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] Long-Term Debt and Lease Obligation, Current Long-Term Debt and Lease Obligation, Current
Noncurrent    
Operating $ 959 $ 1,040
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Other Other
Finance $ 198 $ 215
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] LONG-TERM DEBT LONG-TERM DEBT
Total lease liabilities $ 1,427 $ 1,539
Weighted-average remaining lease term (years)    
Operating leases 7 years 8 months 12 days 8 years 2 months 12 days
Finance leases 11 years 4 months 24 days 11 years 3 months 18 days
Weighted-average discount rate    
Operating leases 8.90% 7.59%
Finance leases 4.40% 4.98%
v3.25.0.1
Leases - Supplemental Cash Flows (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash flows for operating leases $ 427 $ 461
Operating cash flows for finance leases 11 12
Financing cash flows for finance leases 17 25
Supplemental lease cash flow disclosures:    
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities 191 143
Right-of-use assets obtained in exchange for new finance lease liabilities $ 2 $ 10
v3.25.0.1
Leases - Maturities (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Operating Leases    
2025 $ 340  
2026 252  
2027 204  
2028 167  
2029 131  
Thereafter 592  
Total lease payments 1,686  
Less: interest (474)  
Total 1,212  
Less: current portion (253) $ (268)
Long-term portion 959 1,040
Finance Leases    
2025 27  
2026 28  
2027 28  
2028 28  
2029 26  
Thereafter 140  
Total lease payments 277  
Less: interest (62)  
Total 215  
Less: current portion (17) (16)
Long-term portion $ 198 $ 215
v3.25.0.1
Credit Losses on Financial Instruments (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Beginning balance $ 67 $ 85 $ 114
Provision for expected losses 72 100 133
Write-offs charged against the allowance (90) (127) (175)
Recoveries collected 10 9 16
Change in allowance in assets held for sale     (3)
Ending balance 59 67 85
Disposal Group, Held-for-sale, Not Discontinued Operations | EMEA Business      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Allowance for credit losses     5
Business      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Beginning balance 36 57 88
Provision for expected losses 26 35 25
Write-offs charged against the allowance (32) (62) (61)
Recoveries collected 6 6 10
Change in allowance in assets held for sale     (5)
Ending balance 36 36 57
Mass Markets      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Beginning balance 31 28 26
Provision for expected losses 46 65 108
Write-offs charged against the allowance (58) (65) (114)
Recoveries collected 4 3 6
Change in allowance in assets held for sale     2
Ending balance $ 23 $ 31 $ 28
v3.25.0.1
Long-Term Debt and Credit Facilities - Long Term Debt (Details)
$ in Millions
12 Months Ended
Dec. 31, 2024
USD ($)
subsidiary
Mar. 31, 2024
Dec. 31, 2023
USD ($)
Apr. 17, 2023
Debt Disclosure [Abstract]        
Number of subsidiaries | subsidiary 3      
Long-term Debt and Credit Facilities        
Finance lease and other obligations $ 254   $ 285  
Unamortized discounts, net (395)   (4)  
Unamortized debt issuance costs (217)   (145)  
Total long-term debt 17,906   19,988  
Less current maturities (412)   (157)  
Long-term debt, excluding current maturities 17,494   19,831  
Tranche B 2027 Term Loan | Level 3 Financing, Inc.        
Long-term Debt and Credit Facilities        
Long-term debt, gross $ 12   2,411  
Line of Credit | Series A Revolving Credit Facility        
Long-term Debt and Credit Facilities        
Basis spread (as a percent) 4.00%      
Long-term debt, gross $ 0   0  
Line of Credit | Series B Revolving Credit Facility        
Long-term Debt and Credit Facilities        
Basis spread (as a percent) 6.00%      
Long-term debt, gross $ 0   $ 0  
Term Loan | Qwest Corporation        
Long-term Debt and Credit Facilities        
Long-term debt, weighted average interest rate (as a percent)     7.97%  
Term Loan | Term Loan A        
Long-term Debt and Credit Facilities        
Basis spread (as a percent) 6.00%      
Long-term debt, gross $ 357   $ 0  
Long-term debt, weighted average interest rate (as a percent) 10.573%   7.464%  
Term Loan | Term Loan B-1        
Long-term Debt and Credit Facilities        
Basis spread (as a percent) 2.35%      
Long-term debt, gross $ 1,606   $ 0  
Long-term debt, weighted average interest rate (as a percent) 7.037%      
Term Loan | Term Loan B-1 | Level 3 Financing, Inc.        
Long-term Debt and Credit Facilities        
Basis spread (as a percent) 6.56%      
Long-term debt, gross $ 1,199   0  
Long-term debt, weighted average interest rate (as a percent) 11.133%      
Term Loan | Term Loan B-2        
Long-term Debt and Credit Facilities        
Basis spread (as a percent) 2.35%      
Long-term debt, gross $ 1,606   0  
Long-term debt, weighted average interest rate (as a percent) 7.037%      
Term Loan | Term Loan B-2 | Level 3 Financing, Inc.        
Long-term Debt and Credit Facilities        
Basis spread (as a percent) 6.56%      
Long-term debt, gross $ 1,199   0  
Long-term debt, weighted average interest rate (as a percent) 11.133%      
Term Loan | Term Loan B        
Long-term Debt and Credit Facilities        
Basis spread (as a percent) 2.25%      
Long-term debt, gross $ 56   $ 3,891  
Long-term debt, weighted average interest rate (as a percent) 6.937%   7.72%  
Term Loan | Tranche B 2027 Term Loan | Level 3 Financing, Inc.        
Long-term Debt and Credit Facilities        
Basis spread (as a percent) 1.75%      
Long-term debt, weighted average interest rate (as a percent) 6.437%   7.22%  
Term Loan | Former Term Loan | Qwest Corporation        
Long-term Debt and Credit Facilities        
Long-term debt, gross $ 0   $ 215  
Term Loan | Term Loan A-1        
Long-term Debt and Credit Facilities        
Long-term debt, weighted average interest rate (as a percent)     7.47%  
Line of Credit and Medium-term Notes | Other Facilities        
Long-term Debt and Credit Facilities        
Long-term debt, gross 0   $ 1,399  
Senior Notes | Superpriority Notes        
Long-term Debt and Credit Facilities        
Long-term debt, gross $ 1,247   0  
Senior Notes | Superpriority Notes | Minimum        
Long-term Debt and Credit Facilities        
Stated interest rate (as a percent) 4.125%      
Senior Notes | Superpriority Notes | Maximum        
Long-term Debt and Credit Facilities        
Stated interest rate (as a percent) 10.00%      
Senior Notes | Former Parent Secured Notes        
Long-term Debt and Credit Facilities        
Long-term debt, gross $ 0   $ 1,250  
Long-term debt, weighted average interest rate (as a percent)     4.00%  
Senior Notes | First Lien Notes | Level 3 Financing, Inc.        
Long-term Debt and Credit Facilities        
Long-term debt, gross $ 3,846   $ 925  
Senior Notes | First Lien Notes | Level 3 Financing, Inc. | Minimum        
Long-term Debt and Credit Facilities        
Stated interest rate (as a percent) 10.50%      
Senior Notes | First Lien Notes | Level 3 Financing, Inc. | Maximum        
Long-term Debt and Credit Facilities        
Stated interest rate (as a percent) 11.00%      
Senior Notes | Second Lien Notes | Level 3 Financing, Inc.        
Long-term Debt and Credit Facilities        
Long-term debt, gross $ 2,579   0  
Senior Notes | Second Lien Notes | Level 3 Financing, Inc. | Minimum        
Long-term Debt and Credit Facilities        
Stated interest rate (as a percent) 3.875%      
Senior Notes | Second Lien Notes | Level 3 Financing, Inc. | Maximum        
Long-term Debt and Credit Facilities        
Stated interest rate (as a percent) 10.00%      
Senior Notes | Former Level 3 Senior Notes | Level 3 Financing, Inc.        
Long-term Debt and Credit Facilities        
Long-term debt, gross $ 0   $ 1,500  
Senior Notes | Former Level 3 Senior Notes | Level 3 Financing, Inc. | Minimum        
Long-term Debt and Credit Facilities        
Long-term debt, weighted average interest rate (as a percent)     3.40%  
Senior Notes | Former Level 3 Senior Notes | Level 3 Financing, Inc. | Maximum        
Long-term Debt and Credit Facilities        
Long-term debt, weighted average interest rate (as a percent)     3.875%  
Senior Notes | Senior Notes Due 2025-2042        
Long-term Debt and Credit Facilities        
Long-term debt, gross $ 1,428   $ 2,143  
Senior Notes | Senior Notes Due 2025-2042 | Minimum        
Long-term Debt and Credit Facilities        
Stated interest rate (as a percent) 4.00%      
Senior Notes | Senior Notes Due 2025-2042 | Maximum        
Long-term Debt and Credit Facilities        
Stated interest rate (as a percent) 7.65%      
Senior Notes | Senior Notes Maturing 2027-2029 | Level 3 Financing, Inc.        
Long-term Debt and Credit Facilities        
Long-term debt, gross $ 964   3,940  
Senior Notes | Senior Notes Maturing 2027-2029 | Level 3 Financing, Inc. | Minimum        
Long-term Debt and Credit Facilities        
Stated interest rate (as a percent) 3.40%      
Senior Notes | Senior Notes Maturing 2027-2029 | Level 3 Financing, Inc. | Maximum        
Long-term Debt and Credit Facilities        
Stated interest rate (as a percent) 4.625%      
Senior Notes | Senior Notes, Maturing 2025-2057 | Qwest Corporation        
Long-term Debt and Credit Facilities        
Long-term debt, gross $ 1,973   1,986  
Senior Notes | Senior Notes, Maturing 2025-2057 | Qwest Corporation | Minimum        
Long-term Debt and Credit Facilities        
Stated interest rate (as a percent) 6.50%      
Senior Notes | Senior Notes, Maturing 2025-2057 | Qwest Corporation | Maximum        
Long-term Debt and Credit Facilities        
Stated interest rate (as a percent) 7.75%      
Senior Notes | Senior Notes Maturing 2028 - 2031 | Qwest Capital Funding, Inc.        
Long-term Debt and Credit Facilities        
Long-term debt, gross $ 192   $ 192  
Senior Notes | Senior Notes Maturing 2028 - 2031 | Qwest Capital Funding, Inc. | Minimum        
Long-term Debt and Credit Facilities        
Stated interest rate (as a percent) 6.875%      
Senior Notes | Senior Notes Maturing 2028 - 2031 | Qwest Capital Funding, Inc. | Maximum        
Long-term Debt and Credit Facilities        
Stated interest rate (as a percent) 7.75%      
Senior Notes | 10.500% Senior Secured Notes due 2030 | Level 3 Financing, Inc.        
Long-term Debt and Credit Facilities        
Stated interest rate (as a percent) 10.50% 10.50%   10.50%
v3.25.0.1
Long-Term Debt and Credit Facilities - Long-Term Debt Maturities (Details)
$ in Millions
Dec. 31, 2024
USD ($)
Debt Disclosure [Abstract]  
2025 $ 412
2026 96
2027 250
2028 738
2029 7,203
2030 and thereafter 9,819
Total long-term debt $ 18,518
v3.25.0.1
Long-Term Debt and Credit Facilities - Cash Tender Offers (Details) - USD ($)
$ in Millions
1 Months Ended 12 Months Ended
Sep. 24, 2024
Nov. 30, 2024
Dec. 31, 2024
Long-term Debt and Credit Facilities      
Reduction of debt $ 60 $ 393  
Gain (loss) on cash tender offers     $ 33
Debt instrument, face amount     $ 11,925
Senior Notes      
Long-term Debt and Credit Facilities      
Debt instrument, face amount $ 848 $ 393  
5.625% Senior Notes, Series X, due 2025 | Senior Notes      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent)   5.625% 5.625%
Debt instrument, face amount   $ 33  
7.200% Senior Notes, Series D, due 2025 | Senior Notes      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent)   7.20% 7.20%
Debt instrument, face amount   $ 3  
5.125% Senior Notes due 2026 | Senior Notes      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent) 5.125% 5.125%  
Debt instrument, face amount $ 137 $ 5  
4.000% Senior Secured Notes due 2027 (unsecured) | Senior Notes      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent) 4.00% 4.00%  
Debt instrument, face amount $ 188 $ 4  
6.875% Debentures, Series G, due 2028 | Senior Notes      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent) 6.875% 6.875% 6.875%
Debt instrument, face amount $ 80 $ 24  
3.400% Senior Secured Notes due 2027 (unsecured) | Senior Notes | Level 3 Financing, Inc.      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent) 3.40% 3.40%  
Debt instrument, face amount $ 77 $ 1  
4.625% Senior Notes due 2027 | Senior Notes | Level 3 Financing, Inc.      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent) 4.625% 4.625%  
Debt instrument, face amount $ 280 $ 48  
4.250% Senior Notes due 2028 | Senior Notes | Level 3 Financing, Inc.      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent)   4.25% 4.25%
Debt instrument, face amount   $ 275  
v3.25.0.1
Long-Term Debt and Credit Facilities - Exchange Offers (Details)
$ in Millions
1 Months Ended 3 Months Ended 12 Months Ended
Sep. 24, 2024
USD ($)
series
Nov. 30, 2024
USD ($)
Mar. 31, 2024
USD ($)
Dec. 31, 2024
USD ($)
Long-term Debt and Credit Facilities        
Debt instrument, face amount       $ 11,925
Repayments of debt     $ 2,258  
Reduction of debt $ 60 $ 393    
Debt instrument, fees       $ 17
Senior Notes        
Long-term Debt and Credit Facilities        
Debt instrument, face amount 848 393    
10.000% Secured Notes Due 2032 | Senior Notes        
Long-term Debt and Credit Facilities        
Debt instrument, face amount $ 438      
Stated interest rate (as a percent) 10.00%      
Senior Unsecured Notes Due 2026 To 2029 | Senior Notes        
Long-term Debt and Credit Facilities        
Debt instrument, face amount $ 491      
Repayments of debt $ 14      
Number of series | series 4      
10.000% Second Lien Notes Due 2032 | Senior Notes | Level 3 Financing, Inc.        
Long-term Debt and Credit Facilities        
Debt instrument, face amount $ 350      
Stated interest rate (as a percent) 10.00%      
Senior Unsecured Notes Due 2027 | Senior Notes | Level 3 Financing, Inc.        
Long-term Debt and Credit Facilities        
Debt instrument, face amount $ 357      
Number of series | series 2      
5.125% Senior Notes due 2026 | Senior Notes        
Long-term Debt and Credit Facilities        
Debt instrument, face amount $ 137 $ 5    
Stated interest rate (as a percent) 5.125% 5.125%    
4.000% Senior Secured Notes due 2027 (unsecured) | Senior Notes        
Long-term Debt and Credit Facilities        
Debt instrument, face amount $ 188 $ 4    
Stated interest rate (as a percent) 4.00% 4.00%    
6.875% Debentures, Series G, due 2028 | Senior Notes        
Long-term Debt and Credit Facilities        
Debt instrument, face amount $ 80 $ 24    
Stated interest rate (as a percent) 6.875% 6.875%   6.875%
4.500% Senior Notes due 2029 | Senior Notes        
Long-term Debt and Credit Facilities        
Debt instrument, face amount $ 86      
Stated interest rate (as a percent) 4.50%     4.50%
3.400% Senior Secured Notes due 2027 (unsecured) | Senior Notes | Level 3 Financing, Inc.        
Long-term Debt and Credit Facilities        
Debt instrument, face amount $ 77 $ 1    
Stated interest rate (as a percent) 3.40% 3.40%    
4.625% Senior Notes due 2027 | Senior Notes | Level 3 Financing, Inc.        
Long-term Debt and Credit Facilities        
Debt instrument, face amount $ 280 $ 48    
Stated interest rate (as a percent) 4.625% 4.625%    
v3.25.0.1
Long-Term Debt and Credit Facilities - Transaction Support Agreement Transactions - Debt (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2024
Dec. 31, 2023
Long-term Debt and Credit Facilities    
Repaid $ 2,258  
Exchanged 10,244  
Term Loan | Term Loan A    
Long-term Debt and Credit Facilities    
Repaid 933  
Exchanged 0  
Term Loan | Term Loan A-1    
Long-term Debt and Credit Facilities    
Repaid 266  
Exchanged 0  
Term Loan | Term Loan B    
Long-term Debt and Credit Facilities    
Repaid 575  
Exchanged 3,259  
Term Loan | Level 3 Financing, Inc. | Term Loan B    
Long-term Debt and Credit Facilities    
Repaid 0  
Exchanged 2,398  
Term Loan | Qwest Corporation | Term Loan B    
Long-term Debt and Credit Facilities    
Repaid 215  
Exchanged $ 0  
Senior Notes | 5.125% Senior Notes due 2026    
Long-term Debt and Credit Facilities    
Stated interest rate (as a percent) 5.125% 5.125%
Repaid $ 116  
Exchanged $ 147  
Senior Notes | 4.000% Senior Notes due 2027    
Long-term Debt and Credit Facilities    
Stated interest rate (as a percent) 4.00%  
Repaid $ 153  
Exchanged $ 865  
Senior Notes | Level 3 Financing, Inc. | 3.400% Senior Notes due 2027    
Long-term Debt and Credit Facilities    
Stated interest rate (as a percent) 3.40%  
Repaid $ 0  
Exchanged $ 668  
Senior Notes | Level 3 Financing, Inc. | 3.875% Senior Notes due 2029    
Long-term Debt and Credit Facilities    
Stated interest rate (as a percent) 3.875%  
Repaid $ 0  
Exchanged $ 678  
Senior Notes | Level 3 Financing, Inc. | 4.625% Senior Notes due 2027    
Long-term Debt and Credit Facilities    
Stated interest rate (as a percent) 4.625%  
Repaid $ 0  
Exchanged $ 606  
Senior Notes | Level 3 Financing, Inc. | 4.250% Senior Notes due 2028    
Long-term Debt and Credit Facilities    
Stated interest rate (as a percent) 4.25%  
Repaid $ 0  
Exchanged $ 712  
Senior Notes | Level 3 Financing, Inc. | 3.625% Senior Notes due 2029    
Long-term Debt and Credit Facilities    
Stated interest rate (as a percent) 3.625%  
Repaid $ 0  
Exchanged $ 458  
Senior Notes | Level 3 Financing, Inc. | 3.750% Senior Notes due 2029    
Long-term Debt and Credit Facilities    
Stated interest rate (as a percent) 3.75%  
Repaid $ 0  
Exchanged $ 453  
v3.25.0.1
Long-Term Debt and Credit Facilities - Transaction Support Agreement Transactions - New Debt Issuances (Details) - USD ($)
$ in Millions
9 Months Ended
Dec. 31, 2024
Nov. 30, 2024
Sep. 24, 2024
Long-term Debt and Credit Facilities      
Debt instrument, face amount $ 11,925    
Term Loan      
Long-term Debt and Credit Facilities      
Debt instrument, periodic payment 66    
Senior Notes      
Long-term Debt and Credit Facilities      
Debt instrument, face amount   $ 393 $ 848
Term Loan A | Term Loan      
Long-term Debt and Credit Facilities      
Debt instrument, face amount 357    
Term Loan B-1 | Term Loan      
Long-term Debt and Credit Facilities      
Debt instrument, face amount 1,606    
Term Loan B-1 | Term Loan | Level 3 Financing, Inc.      
Long-term Debt and Credit Facilities      
Debt instrument, face amount 1,199    
Term Loan B-2 | Term Loan      
Long-term Debt and Credit Facilities      
Debt instrument, face amount 1,606    
Term Loan B-2 | Term Loan | Level 3 Financing, Inc.      
Long-term Debt and Credit Facilities      
Debt instrument, face amount $ 1,199    
4.125% Superpriority Notes due 2029-2030 | Senior Notes      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent) 4.125%    
Debt instrument, face amount $ 808    
10.500% First Lien Notes due 2029 | Senior Notes | Level 3 Financing, Inc.      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent) 10.50%    
Debt instrument, face amount $ 668    
11.000% First Lien Notes due 2029 | Senior Notes | Level 3 Financing, Inc.      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent) 11.00%    
Debt instrument, face amount $ 1,575    
4.875% Second Lien Notes due 2029 | Senior Notes | Level 3 Financing, Inc.      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent) 4.875%    
Debt instrument, face amount $ 606    
10.750% First Lien Notes due 2030 | Senior Notes | Level 3 Financing, Inc.      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent) 10.75%    
Debt instrument, face amount $ 678    
4.500% Second Lien Notes due 2030 | Senior Notes | Level 3 Financing, Inc.      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent) 4.50%    
Debt instrument, face amount $ 712    
3.875% Second Lien Notes due 2030 | Senior Notes | Level 3 Financing, Inc.      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent) 3.875%    
Debt instrument, face amount $ 458    
4.000% Second Lien Notes due 2031 | Senior Notes | Level 3 Financing, Inc.      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent) 4.00%    
Debt instrument, face amount $ 453    
11.000% First Lien Notes Due 2029- One | Senior Notes | Level 3 Financing, Inc.      
Long-term Debt and Credit Facilities      
Debt instrument, face amount $ 1,375    
v3.25.0.1
Long-Term Debt and Credit Facilities - Transaction Support Agreement Transactions - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2024
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Long-term Debt and Credit Facilities        
Aggregate principal   $ 744    
Net (loss) gain on early retirement of debt $ 275 348 $ 618 $ 214
Reduction in debt from fair value adjustment   492    
Payment for lender fees   209    
Payment for third-party costs   174    
Debt instrument, capitalized lender fees   52    
Third party costs capitalized   62    
Gain (Loss) On Extinguishment Of Debt        
Long-term Debt and Credit Facilities        
Debt instrument, lender fees   157    
Selling, General and Administrative Expenses        
Long-term Debt and Credit Facilities        
Debt instrument, third-party costs   112    
Level 3 Financing, Inc.        
Long-term Debt and Credit Facilities        
Aggregate principal   $ 2,600    
v3.25.0.1
Long-Term Debt and Credit Facilities - Repurchases of Debt Instruments (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2024
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Nov. 30, 2024
Sep. 24, 2024
Long-term Debt and Credit Facilities            
Net (loss) gain on early retirement of debt $ 275 $ 348 $ 618 $ 214    
Principal Amount Repurchased   376        
Notes and Debt Instruments            
Long-term Debt and Credit Facilities            
Net (loss) gain on early retirement of debt   40        
Term Loan | Term Loan A            
Long-term Debt and Credit Facilities            
Principal Amount Repurchased   2        
Term Loan | Term Loan B-1            
Long-term Debt and Credit Facilities            
Principal Amount Repurchased   7        
Term Loan | Term Loan B-2            
Long-term Debt and Credit Facilities            
Principal Amount Repurchased   $ 7        
Senior Notes | 5.625% Senior Notes, Series X, due 2025            
Long-term Debt and Credit Facilities            
Stated interest rate (as a percent)   5.625%     5.625%  
Principal Amount Repurchased   $ 70        
Senior Notes | 7.200% Senior Notes, Series D, due 2025            
Long-term Debt and Credit Facilities            
Stated interest rate (as a percent)   7.20%     7.20%  
Principal Amount Repurchased   $ 13        
Senior Notes | 6.875% Debentures, Series G, due 2028            
Long-term Debt and Credit Facilities            
Stated interest rate (as a percent)   6.875%     6.875% 6.875%
Principal Amount Repurchased   $ 7        
Senior Notes | 4.500% Senior Notes due 2029            
Long-term Debt and Credit Facilities            
Stated interest rate (as a percent)   4.50%       4.50%
Principal Amount Repurchased   $ 24        
Senior Notes | 4.125% Superpriority Notes due 2029-2030            
Long-term Debt and Credit Facilities            
Stated interest rate (as a percent)   4.125%        
Principal Amount Repurchased   $ 3        
Senior Notes | 7.600% Senior Notes due 2039            
Long-term Debt and Credit Facilities            
Stated interest rate (as a percent)   7.60%        
Principal Amount Repurchased   $ 5        
Senior Notes | 7.650% Senior Notes due 2042            
Long-term Debt and Credit Facilities            
Stated interest rate (as a percent)   7.65%        
Principal Amount Repurchased   $ 6        
Senior Notes | 4.250% Senior Notes due 2028 | Level 3 Financing, Inc.            
Long-term Debt and Credit Facilities            
Stated interest rate (as a percent)   4.25%     4.25%  
Principal Amount Repurchased   $ 34        
Senior Notes | 3.625% Senior Notes due 2029 | Level 3 Financing, Inc.            
Long-term Debt and Credit Facilities            
Stated interest rate (as a percent)   3.625%        
Principal Amount Repurchased   $ 81        
Senior Notes | 3.750% Senior Notes due 2029 | Level 3 Financing, Inc.            
Long-term Debt and Credit Facilities            
Stated interest rate (as a percent)   3.75%        
Principal Amount Repurchased   $ 86        
Senior Notes | 3.875% Senior Notes due 2029 | Level 3 Financing, Inc.            
Long-term Debt and Credit Facilities            
Stated interest rate (as a percent)   3.875%        
Principal Amount Repurchased   $ 18        
Senior Notes | 7.250% Senior Notes due 2025 | Qwest Corporation            
Long-term Debt and Credit Facilities            
Stated interest rate (as a percent)   7.25%        
Principal Amount Repurchased   $ 13        
v3.25.0.1
Long-Term Debt and Credit Facilities - Exchange Offers (Details) - USD ($)
3 Months Ended 12 Months Ended
Apr. 17, 2023
Mar. 31, 2024
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Nov. 30, 2024
Sep. 24, 2024
Mar. 31, 2023
Long-term Debt and Credit Facilities                
Debt instrument, face amount     $ 11,925,000,000          
Aggregate principal amount $ 630,000,000              
Repurchased face amount     376,000,000          
Net (loss) gain on early retirement of debt   $ 275,000,000 $ 348,000,000 $ 618,000,000 $ 214,000,000      
Senior Notes                
Long-term Debt and Credit Facilities                
Debt instrument, face amount           $ 393,000,000 $ 848,000,000  
Level 3 Financing, Inc. | Senior Notes | 10.500% Senior Secured Notes due 2030                
Long-term Debt and Credit Facilities                
Debt instrument, face amount $ 9,000,000 $ 915,000,000            
Stated interest rate (as a percent) 10.50% 10.50% 10.50%          
Lumen Technologies Incorporated | Senior Notes                
Long-term Debt and Credit Facilities                
Debt instrument, face amount $ 19,000,000 $ 1,535,000,000            
Repurchased face amount               $ 24,000,000
v3.25.0.1
Long-Term Debt and Credit Facilities - Aggregate Principal Senior Notes Retired (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Mar. 31, 2024
Long-term Debt and Credit Facilities      
Aggregate principal $ 744    
Senior Notes      
Long-term Debt and Credit Facilities      
Aggregate principal   $ 1,554  
Senior Notes | 5.625% Senior Notes, Series X, due 2025      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent)   5.625%  
Aggregate principal   $ 49  
Senior Notes | 7.200% Senior Notes, Series D, due 2025      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent)   7.20%  
Aggregate principal   $ 21  
Senior Notes | 5.125% Senior Notes due 2026      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent)   5.125% 5.125%
Aggregate principal   $ 291  
Senior Notes | 6.875% Debentures, Series G, due 2028      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent)   6.875%  
Aggregate principal   $ 52  
Senior Notes | 5.375% Senior Notes due 2029      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent)   5.375%  
Aggregate principal   $ 275  
Senior Notes | 4.500% Senior Notes due 2029      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent)   4.50%  
Aggregate principal   $ 558  
Senior Notes | 7.600% Senior Notes, Series P, due 2039      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent)   7.60%  
Aggregate principal   $ 164  
Senior Notes | 7.650% Senior Notes, Series U, due 2042      
Long-term Debt and Credit Facilities      
Stated interest rate (as a percent)   7.65%  
Aggregate principal   $ 144  
v3.25.0.1
Long-Term Debt and Credit Facilities - Credit Facility Borrowings and Repayments (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Debt Disclosure [Abstract]    
Borrowings $ 925 $ 2,400
Repayments of credit facility $ 725 $ 2,600
v3.25.0.1
Long-Term Debt and Credit Facilities - Interest Expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Debt Disclosure [Abstract]      
Gross interest expense $ 1,548 $ 1,269 $ 1,398
Capitalized interest (176) (111) (66)
Total interest expense $ 1,372 $ 1,158 $ 1,332
v3.25.0.1
Long-Term Debt and Credit Facilities - Lumen Credit Agreements and Level 3 Credit Agreement (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 22, 2024
Dec. 31, 2024
Dec. 31, 2023
Long-term Debt and Credit Facilities      
Debt instrument, face amount   $ 11,925  
Series A Revolving Credit Facility      
Long-term Debt and Credit Facilities      
Maximum borrowing capacity $ 489 $ 489  
Series A Revolving Credit Facility | Line of Credit      
Long-term Debt and Credit Facilities      
Floor interest rate (as a percent) 2.00%    
Basis spread (as a percent)   4.00%  
Long-term debt, gross   $ 0 $ 0
Series A Revolving Credit Facility | Line of Credit | SOFR      
Long-term Debt and Credit Facilities      
Basis spread (as a percent) 4.00%    
Series A Revolving Credit Facility | Line of Credit | Base Rate      
Long-term Debt and Credit Facilities      
Basis spread (as a percent) 3.00%    
Series B Revolving Credit Facility      
Long-term Debt and Credit Facilities      
Maximum borrowing capacity $ 467 $ 465  
Series B Revolving Credit Facility | Line of Credit      
Long-term Debt and Credit Facilities      
Floor interest rate (as a percent) 2.00%    
Basis spread (as a percent)   6.00%  
Long-term debt, gross   $ 0 $ 0
Series B Revolving Credit Facility | Line of Credit | SOFR      
Long-term Debt and Credit Facilities      
Basis spread (as a percent) 6.00%    
Series B Revolving Credit Facility | Line of Credit | Base Rate      
Long-term Debt and Credit Facilities      
Basis spread (as a percent) 5.00%    
Lumen TLA | Term Loan      
Long-term Debt and Credit Facilities      
Debt instrument, face amount $ 377    
Floor interest rate (as a percent) 2.00%    
Debt instrument periodic payment (as a percent) 1.25%    
Lumen TLA | Term Loan | SOFR      
Long-term Debt and Credit Facilities      
Basis spread (as a percent) 6.00%    
Lumen TLA | Term Loan | Base Rate      
Long-term Debt and Credit Facilities      
Basis spread (as a percent) 5.00%    
TLB Credit Agreement | Term Loan      
Long-term Debt and Credit Facilities      
Floor interest rate (as a percent) 0.00%    
Debt instrument periodic payment (as a percent) 0.25%    
TLB Credit Agreement | Term Loan | SOFR      
Long-term Debt and Credit Facilities      
Basis spread (as a percent) 2.35%    
TLB Credit Agreement | Term Loan | Base Rate      
Long-term Debt and Credit Facilities      
Basis spread (as a percent) 1.35%    
Lumen TLB-1 | Term Loan      
Long-term Debt and Credit Facilities      
Debt instrument, face amount $ 1,600    
Lumen TLB-2 | Term Loan      
Long-term Debt and Credit Facilities      
Debt instrument, face amount $ 1,600    
New Level 3 Credit Agreement | Level 3 Financing, Inc. | Prepaid on or Prior to the 12-Month Anniversary of the Effective Date      
Long-term Debt and Credit Facilities      
Prepayment premium, rate 2.00%    
New Level 3 Credit Agreement | Level 3 Financing, Inc. | Prepaid After the 12-Month Anniversary and on or Prior to the 24-Month Anniversary of the Effective Date      
Long-term Debt and Credit Facilities      
Prepayment premium, rate 1.00%    
New Level 3 Credit Agreement | Term Loan | Level 3 Financing, Inc.      
Long-term Debt and Credit Facilities      
Floor interest rate (as a percent) 2.00%    
New Level 3 Credit Agreement | Term Loan | SOFR | Level 3 Financing, Inc.      
Long-term Debt and Credit Facilities      
Basis spread (as a percent) 6.56%    
New Level 3 Credit Agreement | Term Loan | Base Rate | Level 3 Financing, Inc.      
Long-term Debt and Credit Facilities      
Basis spread (as a percent) 5.56%    
Secured Term B-1 Loan | Term Loan | Level 3 Financing, Inc.      
Long-term Debt and Credit Facilities      
Debt instrument, face amount $ 1,200    
Secured Term B-2 Loan | Term Loan | Level 3 Financing, Inc.      
Long-term Debt and Credit Facilities      
Debt instrument, face amount $ 1,200    
v3.25.0.1
Long-Term Debt and Credit Facilities - Revolving Letters of Credit (Details)
$ in Millions
Dec. 31, 2024
USD ($)
Long-term Debt and Credit Facilities  
Letters of credit outstanding $ 220
Facility Maintained by the Subsidiary  
Long-term Debt and Credit Facilities  
Letters of credit outstanding 2
Letter of Credit | Uncommitted Revolving Letter of Credit Facility  
Long-term Debt and Credit Facilities  
Maximum borrowing capacity 225
Letters of credit outstanding 1
Revolving Credit Facility  
Long-term Debt and Credit Facilities  
Letters of credit outstanding $ 217
v3.25.0.1
Long-Term Debt and Credit Facilities - Certain Guarantees and Security Interests (Details) - Financial Guarantee
$ in Millions
Dec. 31, 2024
USD ($)
Series A Revolving Credit Facility  
Long-term Debt and Credit Facilities  
Guaranteed amount $ 150
Series B Revolving Credit Facility  
Long-term Debt and Credit Facilities  
Guaranteed amount $ 150
v3.25.0.1
Long-Term Debt and Credit Facilities - Covenants and Guarantees (Details)
12 Months Ended
Dec. 31, 2024
USD ($)
indenture
Letter of Credit | Uncommitted Letter of Credit Facility  
Long-term Debt and Credit Facilities  
Maximum borrowing capacity | $ $ 225,000,000
Line of Credit and Medium-term Notes | Maximum  
Long-term Debt and Credit Facilities  
Interest coverage ratio 2.00
Senior Notes  
Long-term Debt and Credit Facilities  
Number of indentures | indenture 4
Redemption price (as a percent) 101.00%
Senior Notes | Level 3 Financing, Inc.  
Long-term Debt and Credit Facilities  
Redemption price (as a percent) 101.00%
Last Day of Each Fiscal Quarter  
Long-term Debt and Credit Facilities  
Maximum total net leverage ratio 5.75
Fiscal Quarter Ending After December 31, 2024 | Line of Credit and Medium-term Notes  
Long-term Debt and Credit Facilities  
Maximum total net leverage ratio 5.50
Fiscal Quarter Ending After December 31, 2025 | Line of Credit and Medium-term Notes  
Long-term Debt and Credit Facilities  
Maximum total net leverage ratio 5.25
v3.25.0.1
Long-Term Debt and Credit Facilities - Subsequent Events (Details) - Subsequent Event - Senior Notes
$ in Millions
Feb. 15, 2025
USD ($)
Long-term Debt and Credit Facilities  
Amount of debt redeemed $ 132
Level 3 Financing, Inc.  
Long-term Debt and Credit Facilities  
Amount of debt redeemed $ 70
v3.25.0.1
Accounts Receivable (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total accounts receivable $ 1,290 $ 1,385
Other 46 39
Less: allowance for credit losses (59) (67)
Accounts receivable, less allowance 1,231 1,318
Earned and unbilled receivables    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total accounts receivable 63 165
Trade and purchased receivables    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total accounts receivable $ 1,181 $ 1,181
v3.25.0.1
Property, Plant and Equipment - Schedule of Property, Plant, and Equipment (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Property, plant and equipment    
Gross property, plant and equipment $ 43,542 $ 41,076
Accumulated depreciation (23,121) (21,318)
Net property, plant and equipment 20,421 19,758
Land    
Property, plant and equipment    
Gross property, plant and equipment 630 646
Fiber, conduit and other outside plant    
Property, plant and equipment    
Gross property, plant and equipment $ 17,348 15,217
Fiber, conduit and other outside plant | Minimum    
Property, plant and equipment    
Depreciable Lives 15 years  
Fiber, conduit and other outside plant | Maximum    
Property, plant and equipment    
Depreciable Lives 45 years  
Central office and other network electronics    
Property, plant and equipment    
Gross property, plant and equipment $ 16,616 15,741
Central office and other network electronics | Minimum    
Property, plant and equipment    
Depreciable Lives 3 years  
Central office and other network electronics | Maximum    
Property, plant and equipment    
Depreciable Lives 10 years  
Support assets    
Property, plant and equipment    
Gross property, plant and equipment $ 6,804 6,714
Support assets | Minimum    
Property, plant and equipment    
Depreciable Lives 3 years  
Support assets | Maximum    
Property, plant and equipment    
Depreciable Lives 30 years  
Construction in progress    
Property, plant and equipment    
Gross property, plant and equipment $ 2,144 $ 2,758
v3.25.0.1
Property, Plant and Equipment - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Impaired Long-Lived Assets Held and Used [Line Items]      
Impairment of long-lived assets $ 83 $ 27 $ 5
Donation   101  
Depreciation 1,900 $ 1,900 $ 2,100
Office Building      
Impaired Long-Lived Assets Held and Used [Line Items]      
Impairment of long-lived assets $ 80    
v3.25.0.1
Property, Plant and Equipment - Change in ARO (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]    
Balance at beginning of period $ 157 $ 156
Accretion expense 12 6
Liabilities settled (12) (9)
Change in estimate 0 4
Balance at end of period $ 157 $ 157
v3.25.0.1
Severance (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 12 Months Ended
Apr. 30, 2024
Jun. 30, 2024
Dec. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Restructuring Cost and Reserve [Line Items]          
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]       Selling, general and administrative Selling, general and administrative
Severance          
Restructuring reserve [Roll Forward]          
Balance at beginning of period       $ 18 $ 11
Accrued to expense       130 74
Payments, net       (136) (67)
Balance at end of period     $ 18 $ 12 $ 18
Severance | Global Workforce Reduction          
Restructuring Cost and Reserve [Line Items]          
Percentage of positions eliminated     4.00%    
Restructuring costs     $ 53    
Severance | Workforce Reduction          
Restructuring Cost and Reserve [Line Items]          
Percentage of positions eliminated 6.00%        
Restructuring costs   $ 103      
v3.25.0.1
Employee Benefits - Additional Information (Details) - Combined Pension Plan
$ in Millions
1 Months Ended 12 Months Ended
Sep. 30, 2022
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Jan. 01, 2022
USD ($)
Employee
Dec. 31, 2021
USD ($)
Defined Benefit Plan Disclosure [Line Items]            
Benefit obligation   $ 4,816 $ 5,212 $ 5,295   $ 9,678
Fair value of plan assets (liabilities)   4,201 4,476 4,715   $ 8,531
Contributions   $ 170 $ 0 $ 0    
New Lumen Pension Plan            
Defined Benefit Plan Disclosure [Line Items]            
Number of active participants (in employees) | Employee         2,500  
Number of other participants (in employees) | Employee         19,000  
Benefit obligation         $ 2,500  
Fair value of plan assets (liabilities)         $ 2,200  
Contributions $ 319          
v3.25.0.1
Employee Benefits - Pension Benefits, Additional Information (Details) - Combined Pension Plan - USD ($)
1 Months Ended 12 Months Ended
Sep. 30, 2022
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Funded (unfunded) status of plan   $ (615,000,000) $ (736,000,000)  
Contributions   170,000,000 0 $ 0
Expected future benefits, next twelve months   569,000,000    
New Lumen Pension Plan        
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Contributions $ 319,000,000      
Qualified Plan        
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Funded (unfunded) status of plan   (615,000,000) (736,000,000)  
Contributions   170,000,000 0  
Nonqualified Plan        
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Funded (unfunded) status of plan   (30,000,000) (33,000,000)  
Benefits paid by company   4,000,000 $ 5,000,000  
Expected future benefits, next twelve months   $ 4,000,000    
Level 3 Parent, LLC        
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Amortization period of the plan shortfall (in years)   7 years    
v3.25.0.1
Employee Benefits - Post-Retirement Benefits, Additional Information (Details) - USD ($)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Benefits paid, net of participant contributions and direct subsidy receipts $ 185,000,000    
Expected future benefit payment, next twelve months, net of direct subsidies $ 186,000,000    
Ultimate health care cost trend rate 4.50%    
Minimum      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Initial health care cost trend rate 6.20%    
Maximum      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Initial health care cost trend rate 7.90%    
Post-Retirement Benefit Plans      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Funded (unfunded) status of plan $ (1,749,000,000) $ (1,918,000,000)  
Contributions $ 0 $ 0  
Ultimate health care cost trend rate 4.50% 4.50% 4.50%
Post-Retirement Benefit Plans | Minimum      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Initial health care cost trend rate 6.20% 5.40%  
Post-Retirement Benefit Plans | Maximum      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Initial health care cost trend rate 7.90% 7.50%  
Post-Retirement Benefit Plans | Qualified Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Funded (unfunded) status of plan $ (1,700,000,000) $ (1,900,000,000)  
v3.25.0.1
Employee Benefits - Expected Cash Flows (Details)
$ in Millions
Dec. 31, 2024
USD ($)
Medicare Part D Subsidy Receipts  
2025 $ (2)
2026 (2)
2027 (2)
2028 (2)
2029 (1)
2030 - 2034 (5)
Combined Pension Plan  
Defined Benefit Plan Disclosure [Line Items]  
2025 569
2026 490
2027 473
2028 450
2029 433
2030 - 2034 1,899
Post-Retirement Benefit Plans  
Defined Benefit Plan Disclosure [Line Items]  
2025 188
2026 184
2027 180
2028 173
2029 166
2030 - 2034 $ 720
v3.25.0.1
Employee Benefits - Net Periodic Benefit Costs Actuarial Assumptions (Details)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]      
Ultimate health care cost trend rate 4.50%    
Combined Pension Plan      
Defined Benefit Plan Disclosure [Line Items]      
Rate of compensation increase 3.25% 3.25% 3.25%
Expected long-term rate of return on plan assets 6.50% 6.50% 5.50%
Combined Pension Plan | Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 5.16% 5.45% 2.29%
Combined Pension Plan | Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 5.35% 5.69% 3.12%
Post-Retirement Benefit Plans      
Defined Benefit Plan Disclosure [Line Items]      
Expected long-term rate of return on plan assets 3.00% 3.00% 4.00%
Ultimate health care cost trend rate 4.50% 4.50% 4.50%
Post-Retirement Benefit Plans | Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 5.17% 5.43% 2.19%
Initial health care cost trend rate 7.50% 5.00% 5.75%
Post-Retirement Benefit Plans | Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 5.42% 5.75% 5.78%
Initial health care cost trend rate 5.40% 7.20% 5.00%
v3.25.0.1
Employee Benefits - Schedule of Net Periodic Benefit (Income) Expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Expected return on plan assets $ (272) $ (287)  
Combined Pension Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost 24 25 $ 44
Interest cost 251 270 194
Expected return on plan assets (272) (287) (385)
Realized to gain on sale of businesses 0 0 546
Special termination benefits charge 0 2 0
Recognition of prior service credit (7) (7) (10)
Recognition of actuarial loss 108 104 122
Net periodic pension expense 104 107 511
Post-Retirement Benefit Plans      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost 4 5 10
Interest cost 94 103 72
Realized to gain on sale of businesses 0 0 (32)
Special termination benefits charge 2 0 0
Recognition of prior service credit (8) (8) 8
Recognition of actuarial loss (17) (20) (4)
Net periodic pension expense $ 75 $ 80 $ 54
v3.25.0.1
Employee Benefits - Net Periodic Benefit (Expense), Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Retirement Benefits [Abstract]    
Benefit obligation $ 2 $ 2
v3.25.0.1
Employee Benefits - Benefit Obligations Actuarial Assumptions (Details)
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]      
Ultimate health care cost trend rate 4.50%    
Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Initial health care cost trend rate 6.20%    
Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Initial health care cost trend rate 7.90%    
Combined Pension Plan      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 5.62% 5.21%  
Rate of compensation increase 3.25% 3.25%  
Post-Retirement Benefit Plans      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 5.60% 5.20%  
Ultimate health care cost trend rate 4.50% 4.50% 4.50%
Post-Retirement Benefit Plans | Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Initial health care cost trend rate 6.20% 5.40%  
Post-Retirement Benefit Plans | Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Initial health care cost trend rate 7.90% 7.50%  
v3.25.0.1
Employee Benefits - Benefit Obligations, Additional Information (Details) - Combined Pension Plan
12 Months Ended
Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]  
Short term interest crediting rates 4.30%
Long term interest crediting rates 3.50%
v3.25.0.1
Employee Benefits - Change in Benefit Obligations (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Combined Pension Plan      
Change in benefit obligation      
Benefit obligation at beginning of year $ 5,212 $ 5,295 $ 9,678
Plan spin-off/ Benefit obligation transferred upon sale of business 0 0 (2,552)
Service cost 24 25 37
Interest cost 251 270 154
Actuarial (gain) loss (119) 114 (1,432)
Benefits paid from plan assets (552) (494) (590)
Special termination benefits charge 0 2 0
Benefit obligation at end of year 4,816 5,212 5,295
Post-Retirement Benefit Plans      
Change in benefit obligation      
Benefit obligation at beginning of year 1,919 1,995 2,781
Plan spin-off/ Benefit obligation transferred upon sale of business 0 0 (26)
Service cost 4 5 10
Interest cost 94 103 72
Participant contributions 27 32 37
Direct subsidy receipts 2 2 2
Plan amendments 0 0 (41)
Actuarial (gain) loss (84) 14 (591)
Benefits paid by company (214) (228) (249)
Benefits paid from plan assets 0 (4) 0
Special termination benefits charge 2 0 0
Benefit obligation at end of year $ 1,750 $ 1,919 $ 1,995
v3.25.0.1
Employee Benefits - Plan Assets, Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]          
Commingled funds, redemption notice period (in days)   180 days      
Return on plan assets   $ 107 $ 255    
Expected return on plan assets   272 287    
Difference between the actual and expected returns on pension and post-retirement plan assets   (165) $ (32)    
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]     Other income (expense), net    
Post-Retirement Benefit Plans          
Defined Benefit Plan Disclosure [Line Items]          
Fair value of plan assets (liabilities)   $ 1 $ 1 $ 5  
Expected long-term rate of return on plan assets   3.00% 3.00% 4.00%  
Combined Pension Plan          
Defined Benefit Plan Disclosure [Line Items]          
Fair value of plan assets (liabilities)   $ 4,201 $ 4,476 $ 4,715 $ 8,531
Expected long-term rate of return on plan assets   6.50% 6.50% 5.50%  
Expected long-term rate of return on plan assets before administrative expenses   6.50%      
Return on plan assets   $ 107 $ 255 $ (987)  
Expected return on plan assets   $ 272 $ 287 $ 385  
Combined Pension Plan | Forecast          
Defined Benefit Plan Disclosure [Line Items]          
Expected long-term rate of return on plan assets 7.00%        
Combined Pension Plan | Debt Security          
Defined Benefit Plan Disclosure [Line Items]          
Plan assets, target allocation, percentage   40.00%      
Combined Pension Plan | Derivatives          
Defined Benefit Plan Disclosure [Line Items]          
Plan assets, target allocation, percentage   60.00%      
v3.25.0.1
Employee Benefits - Change in Plan Assets (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Change in plan assets      
Return on plan assets $ 107 $ 255  
Combined Pension Plan      
Change in plan assets      
Fair value of plan assets at beginning of year 4,476 4,715 $ 8,531
Plan spin-off 0 0 (2,239)
Return on plan assets 107 255 (987)
Benefits paid from plan assets (552) (494) (590)
Contributions 170 0 0
Fair value of plan assets at end of year $ 4,201 $ 4,476 $ 4,715
v3.25.0.1
Employee Benefits - Fair Value of Plan Assets (Details) - Combined Pension Plan - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets $ 4,201 $ 4,476 $ 4,715 $ 8,531
Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 6 5 5  
Investments valued at NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 2,359 2,192    
Total investments, excluding investments valued at NAV | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 2,183 2,660    
Total investments, excluding investments valued at NAV | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 722 728    
Total investments, excluding investments valued at NAV | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 1,455 1,927    
Total investments, excluding investments valued at NAV | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 6 5    
Investment grade bonds | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 1,763 2,228    
Investment grade bonds | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 372 390    
Investment grade bonds | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 1,391 1,838    
Investment grade bonds | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 0 0    
Investment grade bonds | Investments valued at NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 72 105    
High yield bonds | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 30 36    
High yield bonds | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 0 0    
High yield bonds | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 26 32    
High yield bonds | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 4 4 4  
High yield bonds | Investments valued at NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 340 110    
Emerging market bonds | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 104 114    
Emerging market bonds | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 70 57    
Emerging market bonds | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 34 57    
Emerging market bonds | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 0 0    
Emerging market bonds | Investments valued at NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 69 0    
U.S. stocks | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 263 248    
U.S. stocks | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 260 247    
U.S. stocks | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 2 0    
U.S. stocks | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 1 1 1  
U.S. stocks | Investments valued at NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 6 51    
Non-U.S. stocks | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 15 6    
Non-U.S. stocks | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 14 6    
Non-U.S. stocks | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 0 0    
Non-U.S. stocks | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 1 0 $ 0  
Non-U.S. stocks | Investments valued at NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 529 412    
Cash equivalents and short-term investments | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 8      
Cash equivalents and short-term investments | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 6      
Cash equivalents and short-term investments | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 2      
Cash equivalents and short-term investments | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 0      
Cash equivalents and short-term investments | Investments valued at NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 277 318    
Multi-asset strategies | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets   28    
Multi-asset strategies | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets   28    
Multi-asset strategies | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets   0    
Multi-asset strategies | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets   0    
Multi-asset strategies | Investments valued at NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 0 27    
Other receivables | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 27      
Repurchase agreements & other obligations | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (361) (375)    
Repurchase agreements & other obligations | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 0 0    
Repurchase agreements & other obligations | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (361) (375)    
Repurchase agreements & other obligations | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 0 0    
Derivatives | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (7) (1)    
Derivatives | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (1) (1)    
Derivatives | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (6) 0    
Derivatives | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 0 0    
Emerging market stocks | Investments valued at NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 4 10    
Private equity | Investments valued at NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 253 272    
Private debt | Investments valued at NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 398 421    
Market neutral hedge funds | Investments valued at NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 85 77    
Directional hedge funds | Investments valued at NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets 108 124    
Real estate | Investments valued at NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets $ 218 $ 265    
v3.25.0.1
Employee Benefits - Derivative Instruments (Details) - Combined Pension Plan - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Exchange-traded U.S. equity futures    
Defined Benefit Plan Disclosure [Line Items]    
Derivative, notional amount $ 212 $ 60
Exchange-traded Treasury and other interest rate futures    
Defined Benefit Plan Disclosure [Line Items]    
Derivative, notional amount 795 1,136
Exchange-traded Foreign currency futures    
Defined Benefit Plan Disclosure [Line Items]    
Derivative, notional amount 0 1
Interest rate swaps    
Defined Benefit Plan Disclosure [Line Items]    
Derivative, notional amount 149 214
Credit default swaps    
Defined Benefit Plan Disclosure [Line Items]    
Derivative, notional amount 124 72
Index swaps    
Defined Benefit Plan Disclosure [Line Items]    
Derivative, notional amount 701 94
Foreign exchange forwards    
Defined Benefit Plan Disclosure [Line Items]    
Derivative, notional amount 47 57
Options    
Defined Benefit Plan Disclosure [Line Items]    
Derivative, notional amount $ 15 $ 32
v3.25.0.1
Employee Benefits - Change in Plan Assets Measured at Fair Value (Details) - Combined Pension Plan - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Change in plan assets    
Fair value of plan assets at beginning of year $ 4,476 $ 4,715
Fair value of plan assets at end of year 4,201 4,476
Level 3    
Change in plan assets    
Fair value of plan assets at beginning of year 5 5
Dispositions   (2)
Acquisition 1  
Actual return on plan assets 0 2
Fair value of plan assets at end of year 6 5
Level 3 | High Yield Bonds    
Change in plan assets    
Fair value of plan assets at beginning of year 4 4
Dispositions   (2)
Acquisition 0  
Actual return on plan assets 0 2
Fair value of plan assets at end of year 4 4
Level 3 | U.S. Stocks    
Change in plan assets    
Fair value of plan assets at beginning of year 1 1
Dispositions   0
Acquisition 0  
Actual return on plan assets 0 0
Fair value of plan assets at end of year 1 1
Level 3 | Non-U.S. Stocks    
Change in plan assets    
Fair value of plan assets at beginning of year 0 0
Dispositions   0
Acquisition 1  
Actual return on plan assets 0 0
Fair value of plan assets at end of year $ 1 $ 0
v3.25.0.1
Employee Benefits - Unfunded Status (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]        
Non-current portion of unfunded status $ (2,205) $ (2,490)    
Combined Pension Plan        
Defined Benefit Plan Disclosure [Line Items]        
Benefit obligation (4,816) (5,212) $ (5,295) $ (9,678)
Fair value of plan assets (liabilities) 4,201 4,476 4,715 8,531
Unfunded status (615) (736)    
Current portion of unfunded status 0 0    
Non-current portion of unfunded status (615) (736)    
Post-Retirement Benefit Plans        
Defined Benefit Plan Disclosure [Line Items]        
Benefit obligation (1,750) (1,919) (1,995) $ (2,781)
Fair value of plan assets (liabilities) 1 1 $ 5  
Unfunded status (1,749) (1,918)    
Current portion of unfunded status (186) (193)    
Non-current portion of unfunded status $ (1,563) $ (1,725)    
v3.25.0.1
Employee Benefits - Amounts Recognized in Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
AOCI Attributable To Parent, Tax [Roll Forward]      
Net Change in AOCL $ (26) $ 21 $ (297)
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period 417 10,374  
Recognition of Net Periodic Benefits Expense 57 411  
Deferrals 30 (122)  
Net Change in AOCL 87 289 1,059
Balance at end of period 464 417 10,374
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period (769) (677)  
Recognition of Net Periodic Benefits Expense 57 29  
Deferrals 29 (121)  
Net Change in AOCL 86 (92)  
Balance at end of period (683) (769) (677)
Combined Pension Plan | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]      
AOCI Attributable To Parent, Tax [Roll Forward]      
Balance at Beginning of Period 381 367  
Recognition of Net Periodic Benefits Expense (25) (23)  
Deferrals 14 37  
Net Change in AOCL (11) 14  
Balance at End of Period 370 381 367
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period (1,045) (985)  
Recognition of Net Periodic Benefits Expense 76 50  
Deferrals (34) (110)  
Net Change in AOCL 42 (60)  
Balance at end of period (1,003) (1,045) (985)
Combined Pension Plan | Net actuarial (loss) gain      
AOCI Attributable To Parent, Before Tax [Roll Forward]      
Balance at Beginning of Period (1,819) (1,752)  
Recognition of Net Periodic Benefits Expense 108 80  
Deferrals (48) (147)  
Net Change in AOCL 60 (67)  
Balance at End of Period (1,759) (1,819) (1,752)
Combined Pension Plan | Settlement charge      
AOCI Attributable To Parent, Before Tax [Roll Forward]      
Balance at Beginning of Period 383 383  
Recognition of Net Periodic Benefits Expense 0 0  
Deferrals 0 0  
Net Change in AOCL 0 0  
Balance at End of Period 383 383 383
Combined Pension Plan | Prior service benefit (cost)      
AOCI Attributable To Parent, Before Tax [Roll Forward]      
Balance at Beginning of Period 10 17  
Recognition of Net Periodic Benefits Expense (7) (7)  
Deferrals 0 0  
Net Change in AOCL (7) (7)  
Balance at End of Period 3 10 17
Post-Retirement Benefit Plans | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]      
AOCI Attributable To Parent, Tax [Roll Forward]      
Balance at Beginning of Period (94) (104)  
Recognition of Net Periodic Benefits Expense 6 7  
Deferrals (21) 3  
Net Change in AOCL (15) 10  
Balance at End of Period (109) (94) (104)
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period 276 308  
Recognition of Net Periodic Benefits Expense (19) (21)  
Deferrals 63 (11)  
Net Change in AOCL 44 (32)  
Balance at end of period 320 276 308
Post-Retirement Benefit Plans | Net actuarial (loss) gain      
AOCI Attributable To Parent, Before Tax [Roll Forward]      
Balance at Beginning of Period 337 371  
Recognition of Net Periodic Benefits Expense (17) (20)  
Deferrals 84 (14)  
Net Change in AOCL 67 (34)  
Balance at End of Period 404 337 371
Post-Retirement Benefit Plans | Prior service benefit (cost)      
AOCI Attributable To Parent, Before Tax [Roll Forward]      
Balance at Beginning of Period 29 37  
Recognition of Net Periodic Benefits Expense (8) (8)  
Deferrals 0 0  
Net Change in AOCL (8) (8)  
Balance at End of Period 21 29 37
Post-Retirement Benefit Plans | Curtailment loss      
AOCI Attributable To Parent, Before Tax [Roll Forward]      
Balance at Beginning of Period 4 4  
Recognition of Net Periodic Benefits Expense 0 0  
Deferrals 0 0  
Net Change in AOCL 0 0  
Balance at End of Period $ 4 $ 4 $ 4
v3.25.0.1
Employee Benefits - Other Benefit Plans (Details) - USD ($)
shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Retirement Benefits [Abstract]      
Active health care benefit expenses $ 281 $ 288 $ 296
Participating employees' contribution to health care plan $ 79 $ 89 101
Common stock included in the assets of the Defined Contribution Plan (in shares) 8 9  
Expenses related to the 401(k) Plan $ 82 $ 87 $ 91
v3.25.0.1
Stock-based Compensation - Additional Information (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total fair value of awards vested during the period $ 27 $ 21 $ 98
Service Awards | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 1 year    
Service Awards | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 4 years    
Restricted Stock and Restricted Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 3 years    
Granted (in shares) 14,274 14,800 18,800
Granted (in dollars per share) $ 1.69 $ 1.85 $ 11.47
Restricted Stock and Restricted Stock Units | Service conditions      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 3 years    
Restricted Stock and Restricted Stock Units | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of target award 0.00%    
Restricted Stock and Restricted Stock Units | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of target award 200.00%    
v3.25.0.1
Stock-based Compensation - Restricted Stock Awards and Restricted Stock Unit Awards Activity (Details) - Restricted Stock and Restricted Stock Units - $ / shares
shares in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Number of Shares      
Nonvested at the beginning of the period (in shares) 28,052    
Granted (in shares) 14,274 14,800 18,800
Vested (in shares) (8,579)    
Forfeited (in shares) (5,587)    
Nonvested at the end of the period (in shares) 28,160 28,052  
Weighted- Average Grant Date Fair Value      
Nonvested at the beginning of the period (in dollars per share) $ 6.82    
Granted (in dollars per share) 1.69 $ 1.85 $ 11.47
Vested (in dollars per share) 6.70    
Forfeited (in dollars per share) 12.25    
Nonvested at the end of the period (in dollars per share) $ 3.18 $ 6.82  
v3.25.0.1
Stock-based Compensation - Compensation Expense and Tax Benefit (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]      
Compensation cost $ 29 $ 52 $ 98
Tax benefit recognized in the income statement for share-based payment arrangements 7 $ 12 $ 25
Unrecognized compensation cost $ 28    
Weighted-average recognition period (in years) 1 year 4 months 24 days    
v3.25.0.1
Loss Per Common Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Loss (numerator)      
Net loss $ (55) $ (10,298) $ (1,548)
Net loss applicable to common stock for computing basic loss per common share (55) (10,298) (1,548)
Net loss as adjusted for purposes of computing diluted loss per common share $ (55) $ (10,298) $ (1,548)
Weighted-average number of shares:      
Outstanding during period (in shares) 1,014,554 1,006,787 1,028,069
Non-vested restricted stock (in shares) (26,874) (23,706) (20,552)
Weighted average shares outstanding for computing basic loss per common share (in shares) 987,680 983,081 1,007,517
Incremental common shares attributable to dilutive securities:      
Shares issuable under convertible securities (in shares) 0 0 0
Shares issuable under incentive compensation plans (in shares) 0 0 0
Number of shares as adjusted for purposes of computing diluted loss per common share (in shares) 987,680 983,081 1,007,517
Basic loss per common share (in dollars per share) $ (0.06) $ (10.48) $ (1.54)
Diluted loss per common share (in dollars per share) $ (0.06) $ (10.48) $ (1.54)
Stock Compensation Plan      
Incremental common shares attributable to dilutive securities:      
Number of shares of common stock excluded from the computation of diluted loss per share (in shares) 7,300 300 3,800
Restricted Stock      
Incremental common shares attributable to dilutive securities:      
Number of shares of common stock excluded from the computation of diluted loss per share (in shares) 16,000 22,500 13,800
v3.25.0.1
Fair Value of Financial Instruments - Carrying Amount and Fair Value of Debt (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Level 2 | Carrying Amount    
Fair value disclosure    
Long-term debt, excluding finance lease and other obligations $ 17,652 $ 19,703
Level 2 | Fair Value    
Fair value disclosure    
Long-term debt, excluding finance lease and other obligations 17,127 13,304
Level 3 | Carrying Amount    
Fair value disclosure    
Indemnifications related to the sale of the Latin American business 87 86
Level 3 | Fair Value    
Fair value disclosure    
Indemnifications related to the sale of the Latin American business $ 84 $ 86
v3.25.0.1
Derivative Financial Instruments - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2019
Interest rate swaps    
Derivative [Line Items]    
Net losses reclassified to earnings upon settlement of cash flow hedging contracts $ 19  
Designated as Hedging Instrument | Variable-to-fixed interest rate swap    
Derivative [Line Items]    
Notional amount   $ 4,000
v3.25.0.1
Derivative Financial Instruments - Reclassification from AOCI (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]      
Realized losses reclassified from AOCI $ 0 $ 0 $ 17
Designated as Hedging Instrument | Interest rate swaps      
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]      
Realized losses reclassified from AOCI     $ 22
v3.25.0.1
Income Taxes - Components of Income Tax (Benefit) Expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Federal      
Current $ 87 $ 7 $ 838
Deferred (251) (2) (332)
State      
Current (29) (6) 283
Deferred 15 55 (191)
Foreign      
Current 2 0 32
Deferred 1 7 (73)
Total income tax (benefit) expense (175) 61 557
Income tax (benefit) expense in the consolidated statements of operations:      
Income tax (benefit) expense (175) 61 557
Stockholders' equity:      
Tax effect of the change in accumulated other comprehensive loss $ 26 $ (21) $ 297
v3.25.0.1
Income Taxes - Tax Rate Reconciliation (Details)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Reconciliation of the statutory federal income tax rate to effective income tax rate      
Statutory federal income tax rate 21.00% 21.00% 21.00%
State income taxes, net of federal income tax benefit 4.10% (0.20%) (8.80%)
Goodwill impairment 0.00% (21.90%) (68.90%)
Change in liability for unrecognized tax position (16.80%) (0.10%) (0.20%)
Legislative changes to Global Intangible Low-Taxes Income ("GILTI") (1.20%) 0.00% 0.00%
Nondeductible executive stock compensation (4.90%) 0.00% (0.10%)
Change in valuation allowance 2.30% 1.30% 0.90%
Net foreign income taxes (2.30%) 0.00% 3.00%
Research and development credits 6.50% 0.10% 1.10%
Divestitures of businesses 0.00% (0.40%) (4.00%)
Indemnification refunds 11.20% 0.00% 0.00%
Cancellation of debt income 59.30% 0.00% 0.00%
Other, net (3.10%) (0.40%) (0.20%)
Effective income tax rate 76.10% (0.60%) (56.20%)
v3.25.0.1
Income Taxes - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Operating Loss Carryforwards [Line Items]      
Favorable impact from exclusion of CODI $ 135 $ 663  
Unfavorable impact of non-deductible goodwill impairments   2,200 $ 682
Favorable impact of utilizing available capital loss   137  
Unfavorable impact related to incurring GILTI     $ 128
Net deferred tax liability 2,794 3,015  
Deferred income tax liabilities, net 2,890 3,127  
Deferred income tax assets, net 96 112  
Income taxes receivable 483 273  
Valuation allowance 343 399  
Valuation allowance, DTA, decrease, amount 56    
Unrecognized tax benefits that would impact effective tax rate 404    
Interest on income taxes accrued 217 $ 100  
Decrease in unrecorded benefit within the next 12 months 395    
Federal      
Operating Loss Carryforwards [Line Items]      
Operating loss carryforward 570    
State      
Operating Loss Carryforwards [Line Items]      
Operating loss carryforward $ 12,000    
v3.25.0.1
Income Taxes - Components of Net Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Deferred tax assets    
Post-retirement and pension benefit costs $ 583 $ 659
Net operating loss carryforwards 649 794
Other employee benefits 22 23
Other 744 511
Gross deferred tax assets 1,998 1,987
Less valuation allowance (343) (399)
Net deferred tax assets 1,655 1,588
Deferred tax liabilities    
Property, plant and equipment, primarily due to depreciation differences (3,447) (3,332)
Goodwill and other intangible assets (1,002) (1,271)
Gross deferred tax liabilities (4,449) (4,603)
Net deferred tax liability $ (2,794) $ (3,015)
v3.25.0.1
Income Taxes - Unrecognized Tax Benefits (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Unrecognized Tax Benefits [Roll Forward]    
Unrecognized tax benefits at beginning of year $ 1,424 $ 1,318
Decrease in tax positions of prior periods netted against deferred tax assets (4) (411)
Decrease in tax positions taken in the current year (64) (73)
Increase in tax positions taken in the prior year 65 752
Decrease due to payments/settlements 0 (1)
Decrease from the lapse of statute of limitations (158) (52)
Decrease related to divestitures of businesses 0 (109)
Unrecognized tax benefits at end of year $ 1,263 $ 1,424
v3.25.0.1
Segment Information - Additional Information (Details) - 12 months ended Dec. 31, 2024
segement
segment
sales_channel
Segment Reporting Information [Line Items]      
Number of reportable segments 2 2  
Number of operating segments | segment   2  
Business      
Segment Reporting Information [Line Items]      
Number of sales channel | sales_channel     5
v3.25.0.1
Segment Information - Segment Results and Operating Revenue (Details ) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Operating revenues by products and services      
Revenues $ 13,108 $ 14,557 $ 17,478
Cost of services and products 6,703 7,144 7,868
Business      
Operating revenues by products and services      
Revenues 10,363 11,583 13,099
Cost of services and products 3,063 3,248 3,436
Headcount costs 1,237 1,473 1,584
Non-headcount costs 652 807 879
Total expense 4,952 5,528 5,899
Total segment adjusted EBITDA 5,411 6,055 7,200
Mass Markets      
Operating revenues by products and services      
Revenues 2,745 2,974 4,379
Cost of services and products 69 79 121
Headcount costs 651 768 945
Non-headcount costs 572 610 703
Total expense 1,292 1,457 1,769
Total segment adjusted EBITDA $ 1,453 $ 1,517 $ 2,610
v3.25.0.1
Segment Information - Reconciliation (Details) - USD ($)
3 Months Ended 12 Months Ended
Oct. 31, 2023
Dec. 31, 2024
Jun. 30, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]            
Depreciation and amortization       $ (2,956,000,000) $ (2,985,000,000) $ (3,239,000,000)
Goodwill impairment $ (1,900,000,000) $ 0 $ (8,800,000,000) 0 (10,693,000,000) (3,271,000,000)
Stock-based compensation       (29,000,000) (52,000,000) (98,000,000)
OPERATING INCOME (LOSS)       460,000,000 (9,584,000,000) 95,000,000
Total other expense, net       (690,000,000) (653,000,000) (1,086,000,000)
Loss before income taxes       (230,000,000) (10,237,000,000) (991,000,000)
Income tax (benefit) expense       (175,000,000) 61,000,000 557,000,000
NET LOSS       (55,000,000) (10,298,000,000) (1,548,000,000)
Operating Segments            
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]            
Total segment adjusted EBITDA       6,864,000,000 7,572,000,000 9,810,000,000
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment            
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]            
Depreciation and amortization       (2,956,000,000) (2,985,000,000) (3,239,000,000)
Goodwill impairment       0 (10,693,000,000) (3,271,000,000)
Other unallocated expense       (3,419,000,000) (3,426,000,000) (3,107,000,000)
Stock-based compensation       (29,000,000) (52,000,000) (98,000,000)
OPERATING INCOME (LOSS)       460,000,000 (9,584,000,000) 95,000,000
Total other expense, net       $ (690,000,000) $ (653,000,000) $ (1,086,000,000)
v3.25.0.1
Commitments, Contingencies and Other Items - Additional Information (Details)
1 Months Ended 12 Months Ended
Dec. 30, 2021
lawsuit
People
Sep. 30, 2024
USD ($)
Jun. 30, 2021
USD ($)
lawsuit
Dec. 31, 2020
USD ($)
Feb. 28, 2017
USD ($)
lawsuit
Dec. 31, 2024
USD ($)
lawsuit
patent
Dec. 31, 2023
USD ($)
Commitments and Contingencies              
Estimate of possible loss           $ 78,000,000 $ 84,000,000
Number of people killed in fire | People 2            
Number of patents allegedly infringed | patent           1  
Purchase obligations maturities              
Total purchase commitments           $ 2,400,000,000  
2025           795,000,000  
2026 through 2027           1,200,000,000  
2028 through 2029           256,000,000  
2030 and thereafter           164,000,000  
Penalties for Violation of Washington Regulations and Laws Filed by Staff of WUTC              
Commitments and Contingencies              
Loss contingency, damages sought, value       $ 7,000,000      
Penalties Sought by Washington Attorneys General Office              
Commitments and Contingencies              
Loss contingency, damages sought, value       27,000,000      
Penalties Imposed by WUTC              
Commitments and Contingencies              
Loss contingency, damages awarded, value       $ 1,000,000      
Unfavorable regulatory action              
Commitments and Contingencies              
Estimate of possible loss           $ 300,000  
Missouri Municipalities | Judicial ruling              
Commitments and Contingencies              
Number of pending claims | lawsuit         1    
Litigation settlement amount         $ 4,000,000    
Peruvian Tax Litigation | Pending litigation              
Commitments and Contingencies              
Number of pending claims | lawsuit     1        
Columbia and Joplin Municipalities | Judicial ruling              
Commitments and Contingencies              
Litigation settlement amount     $ 55,000,000        
Marshall Fire Litigation | Pending litigation              
Commitments and Contingencies              
Number of pending claims | lawsuit           3  
Number of lawsuits filed | lawsuit 300            
Marshall Fire Litigation | Pending litigation | Minimum              
Commitments and Contingencies              
Estimate of possible loss           $ 2,000,000,000  
FCPA Litigation | Judicial ruling | Statutory Damages              
Commitments and Contingencies              
Litigation settlement amount   $ 500          
FCPA Litigation | Judicial ruling | Punitive Damages              
Commitments and Contingencies              
Litigation settlement amount   $ 2,000          
v3.25.0.1
Commitments, Contingencies and Other Items - Right of Way Agreements (Details) - Future Rental Commitments And ROW Agreements
$ in Millions
Dec. 31, 2024
USD ($)
Future rental commitments  
2025 $ 204
2026 72
2027 71
2028 67
2029 54
2030 and thereafter 717
Total future minimum payments $ 1,185
v3.25.0.1
Other Financial Information - Other Current Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Prepaid Expenses and Other Current Assets [Abstract]    
Prepaid expenses $ 372 $ 395
Income tax receivable 483 273
Materials, supplies and inventory 146 209
Contract assets 16 19
Assets held for sale 24 104
Other 22 14
Total other current assets 1,274 1,223
Acquisition Costs    
Prepaid Expenses and Other Current Assets [Abstract]    
Contract costs 102 107
Fulfillment Costs    
Prepaid Expenses and Other Current Assets [Abstract]    
Contract costs $ 109 $ 102
v3.25.0.1
Other Financial Information - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]      
Capital expenditures included in accounts payable $ 248 $ 274  
Gain on sale of investment $ 205 $ 0 $ 0
v3.25.0.1
Repurchases of Lumen Common Stock (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2022
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Equity, Class of Treasury Stock [Line Items]        
Repurchase program, period (in years) 2 years      
Repurchase program, authorized amount $ 1,500     $ 1,500
Number of shares repurchased (in shares)   0 0 33,000,000
Repurchases of common stock       $ 200
Average purchase price (in dollars per share)       $ 6.07
Common Stock        
Equity, Class of Treasury Stock [Line Items]        
Repurchases of common stock   $ 0 $ 0 $ 33
Repurchased common stock that were retired       33
Additional Paid-in Capital        
Equity, Class of Treasury Stock [Line Items]        
Repurchases of common stock   $ 0 $ 0 167
Repurchased common stock that were retired       $ 167
v3.25.0.1
Accumulated Other Comprehensive Loss - AOCI Activity (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period $ 417 $ 10,374  
Other comprehensive (loss) income before reclassifications 30 (122)  
Amounts reclassified from accumulated other comprehensive income (loss) 57 411  
Other comprehensive income 87 289 $ 1,059
Balance at end of period 464 417 10,374
Defined Benefit Plans      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period (769) (677)  
Other comprehensive (loss) income before reclassifications 29 (121)  
Amounts reclassified from accumulated other comprehensive income (loss) 57 29  
Other comprehensive income 86 (92)  
Balance at end of period (683) (769) (677)
Defined Benefit Plans | Pension Plans      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period (1,045) (985)  
Other comprehensive (loss) income before reclassifications (34) (110)  
Amounts reclassified from accumulated other comprehensive income (loss) 76 50  
Other comprehensive income 42 (60)  
Balance at end of period (1,003) (1,045) (985)
Defined Benefit Plans | Post-Retirement Benefit Plans      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period 276 308  
Other comprehensive (loss) income before reclassifications 63 (11)  
Amounts reclassified from accumulated other comprehensive income (loss) (19) (21)  
Other comprehensive income 44 (32)  
Balance at end of period 320 276 308
Foreign Currency Translation Adjustment and Other      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period (41) (422)  
Other comprehensive (loss) income before reclassifications 1 (1)  
Amounts reclassified from accumulated other comprehensive income (loss) 0 382  
Other comprehensive income 1 381  
Balance at end of period (40) (41) (422)
Total      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period (810) (1,099) (2,158)
Other comprehensive income 87 289 1,059
Balance at end of period $ (723) $ (810) $ (1,099)
v3.25.0.1
Accumulated Other Comprehensive Loss - Reclassifications (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other income (expense), net $ (334) $ 113 $ (32)
Net loss (gain) on sale of businesses 17 121 (113)
Total before tax 230 10,237 991
Income tax (benefit) expense (175) 61 557
Net of tax 55 10,298 $ 1,548
Decrease (Increase) in Net Income/Loss | Defined benefit plans      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Total before tax 76 67  
Income tax (benefit) expense (19) (16)  
Net of tax 57 51  
Decrease (Increase) in Net Income/Loss | Net actuarial loss      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other income (expense), net 91 82  
Assets held for sale   (24)  
Net loss (gain) on sale of businesses   (2)  
Net loss (gain) on sale of businesses, including held for sale   (22)  
Decrease (Increase) in Net Income/Loss | Prior service cost      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other income (expense), net $ (15) (15)  
Decrease (Increase) in Net Income/Loss | Foreign currency adjustment      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Assets held for sale   389  
Net loss (gain) on sale of businesses   (7)  
Net loss (gain) on sale of businesses, including held for sale   382  
Decrease (Increase) in Net Income/Loss | Defined benefit plans and foreign currency adjustment      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Income tax (benefit) expense   0  
Net of tax   $ 360  
v3.25.0.1
Labor Union Contracts (Details) - Unionized Employees Concentration Risk
12 Months Ended
Dec. 31, 2024
Total Number of Employees  
Labor Union Contracts  
Concentration risk (as a percent) 21.00%
Workforce Subject to Collective Bargaining Arrangements Expiring within One Year  
Labor Union Contracts  
Concentration risk (as a percent) 10.00%
v3.25.0.1
Dividends (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dividends, Common Stock [Abstract]            
Dividend Per Share (in dollars per share) $ 0.25 $ 0.25 $ 0.25 $ 0 $ 0 $ 0.75
Total Amount $ 253 $ 253 $ 253