LYONDELLBASELL INDUSTRIES N.V., 10-K filed on 2/20/2026
Annual Report
v3.25.4
Cover - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2025
Feb. 18, 2026
Jun. 30, 2025
Entity Addresses [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2025    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-34726    
Entity Registrant Name LyondellBasell Industries N.V.    
Entity Incorporation, State or Country Code P7    
Entity Tax Identification Number 98-0646235    
Entity Address, Address Line One 2800 Post Oak Blvd.    
Entity Address, Address Line Two Suite 5100    
Entity Address, City or Town Houston,    
Entity Address, State or Province TX    
Entity Address, Country US    
Entity Address, Postal Zip Code 77056    
City Area Code (713)    
Local Phone Number 309-7200    
Title of 12(b) Security Ordinary Shares, €0.04 Par Value    
Trading Symbol LYB    
Security Exchange Name NYSE    
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 [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 14.8
Entity Common Stock, Shares Outstanding   322,169,978  
Documents Incorporated by Reference Portions of the 2026 Proxy Statement, in connection with the Company’s 2026 Annual Meeting of Shareholders (in Part III), as indicated herein.    
Entity Central Index Key 0001489393    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Amendment Flag false    
United Kingdom      
Entity Addresses [Line Items]      
Entity Address, Address Line One 4th Floor, One Vine Street    
Entity Address, City or Town London    
Entity Address, Country GB    
Entity Address, Postal Zip Code W1J0AH    
Country Region +44 (0)    
City Area Code 207    
Local Phone Number 220 2600    
The Netherlands      
Entity Addresses [Line Items]      
Entity Address, Address Line One Delftseplein 27E    
Entity Address, City or Town Rotterdam    
Entity Address, Country NL    
Entity Address, Postal Zip Code 3013AA    
Country Region +31 (0)    
City Area Code 10    
Local Phone Number 275 5500    
v3.25.4
Audit Information
12 Months Ended
Dec. 31, 2025
Audit Information [Abstract]  
Auditor Firm ID 238
Auditor Name PricewaterhouseCoopers LLP
Auditor Location Houston, Texas
v3.25.4
Consolidated Statements of Income (Loss) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Sales and other operating revenues:      
Sales and other operating revenues: $ 30,153 $ 33,394 $ 33,336
Operating costs and expenses:      
Cost of sales 27,576 28,750 28,435
Goodwill impairments 972 0 252
Other impairments 279 949 255
Selling, general and administrative expenses 1,610 1,642 1,539
Research and development expenses 136 135 130
Operating costs and expenses 30,573 31,476 30,611
Operating income (loss) (420) 1,918 2,725
Interest expense (487) (481) (477)
Interest income 97 150 129
Gain (loss) on sale of business (6) 284 0
Other income (expense), net 113 47 (58)
Income (loss) from continuing operations before equity investments and income taxes (703) 1,918 2,319
Loss from equity investments (12) (217) (20)
Income (loss) from continuing operations before income taxes (715) 1,701 2,299
Provision for income taxes 70 259 433
Income (loss) from continuing operations (785) 1,442 1,866
Income (loss) from discontinued operations, net of tax 47 (75) 255
Net (loss) income (738) 1,367 2,121
Dividends on redeemable non-controlling interests (7) (7) (7)
Net income (loss) attributable to the Company shareholders $ (745) $ 1,360 $ 2,114
Net income (loss) attributable to the Company shareholders —Basic:      
Continuing operations (in dollars per share) $ (2.48) $ 4.40 $ 5.70
Discontinued operations (in dollars per share) 0.14 (0.24) 0.78
Basic (in dollars in per share) (2.34) 4.16 6.48
Net income (loss) attributable to the Company shareholders - Diluted:      
Continuing operations (in dollars per share) (2.48) 4.39 5.68
Discontinued operations (in dollars per share) 0.14 (0.24) 0.78
Diluted (in dollars per share) $ (2.34) $ 4.15 $ 6.46
Trade      
Sales and other operating revenues:      
Sales and other operating revenues: $ 29,581 $ 32,760 $ 32,722
Related parties      
Sales and other operating revenues:      
Sales and other operating revenues: $ 572 $ 634 $ 614
v3.25.4
Consolidated Statements of Comprehensive Income (Loss) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Statement of Comprehensive Income [Abstract]      
Net income (loss) $ (738) $ 1,367 $ 2,121
Other comprehensive income (loss), net of tax—      
Financial derivatives (22) 115 (80)
Defined benefit pension and other postretirement benefit plans 45 (2) (97)
Foreign currency translations 199 (169) 73
Total other comprehensive income (loss), net of tax 222 (56) (104)
Comprehensive income (loss) (516) 1,311 2,017
Dividends on redeemable non-controlling interests (7) (7) (7)
Comprehensive income (loss) attributable to the Company shareholders $ (523) $ 1,304 $ 2,010
v3.25.4
Consolidated Balance Sheets - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Current assets:    
Cash and cash equivalents $ 3,443 $ 3,375
Restricted cash 6 13
Inventories 3,533 4,658
Prepaid expenses and other current assets 612 928
Assets held for sale 757 0
Total current assets 10,868 12,266
Operating lease assets 1,514 1,467
Property, plant and equipment, net 15,833 15,066
Equity investments 3,963 4,121
Goodwill 708 1,561
Intangible assets, net 450 577
Other assets 667 688
Total assets 34,003 35,746
Current liabilities:    
Current maturities of long-term debt 588 498
Short-term debt 226 119
Accrued and other current liabilities 1,956 2,356
Liabilities held for sale 665 0
Total current liabilities 6,129 6,705
Long-term debt 12,124 10,532
Operating lease liabilities 1,327 1,419
Other liabilities 1,900 1,967
Deferred income taxes 2,316 2,535
Commitments and contingencies
Redeemable non-controlling interests 114 114
Shareholders’ equity:    
Ordinary shares, €0.04 par value, 1,275 million shares authorized, 322,084,769 and 323,889,832 shares outstanding, respectively 19 19
Additional paid-in capital 6,148 6,150
Retained earnings 6,812 9,325
Accumulated other comprehensive loss (1,310) (1,532)
Treasury stock, at cost, 18,337,729 and 16,532,666 ordinary shares, respectively (1,587) (1,500)
Total Company share of shareholders’ equity 10,082 12,462
Non-controlling interests 11 12
Total equity 10,093 12,474
Total liabilities, redeemable non-controlling interests and equity 34,003 35,746
Trade    
Current assets:    
Accounts receivable: 2,362 3,121
Current liabilities:    
Accounts payable: 2,250 3,220
Related parties    
Current assets:    
Accounts receivable: 155 171
Current liabilities:    
Accounts payable: $ 444 $ 512
v3.25.4
Consolidated Balance Sheets (Parentheticals) - € / shares
Dec. 31, 2025
Dec. 31, 2024
Statement of Financial Position [Abstract]    
Ordinary shares par value (in euros per share) € 0.04 € 0.04
Ordinary shares, shares authorized (in shares) 1,275,000,000 1,275,000,000
Ordinary shares, shares issued (in shares) 322,084,769 323,889,832
Ordinary shares, shares outstanding (in shares) 322,084,769 323,889,832
Treasury stock, shares (in shares) 18,337,729 16,532,666
v3.25.4
Consolidated Statements of Cash Flows - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Cash flows from operating activities:      
Net income (loss) $ (738) $ 1,367 $ 2,121
Adjustments to reconcile net income (loss) to net cash provided by operating activities:      
Depreciation and amortization 1,390 1,522 1,534
Impairments 1,251 949 518
Amortization of debt-related costs 11 11 9
Share-based compensation 91 91 91
Equity investments—      
Equity loss 12 217 20
Distributions of earnings, net of tax 92 122 169
Deferred income tax provision (benefit) (156) (437) 43
(Gain) loss on sale of business 6 (284) 0
Gain on sale of assets (112) (36) 0
Changes in assets and liabilities that provided (used) cash:      
Accounts receivable 687 127 110
Inventories 945 25 18
Accounts payable (768) (122) 141
Other, net (449) 267 168
Net cash provided by operating activities 2,262 3,819 4,942
Cash flows from investing activities:      
Expenditures for property, plant and equipment (1,878) (1,839) (1,531)
Proceeds from sale of business 4 689 0
Proceeds from sale of assets 131 68 0
Payment for acquisition of equity method investments (14) (551) (102)
Proceeds from settlement of net investment hedges 902 967 903
Payments for settlement of net investment hedges (877) (921) (820)
Other, net (44) (266) (227)
Net cash used in investing activities (1,776) (1,853) (1,777)
Cash flows from financing activities:      
Repurchases of Company ordinary shares (201) (195) (211)
Dividends paid - common stock (1,764) (1,720) (1,610)
Issuance of long-term debt 1,990 744 500
Payments of debt issuance costs (18) (10) (5)
Repayments of long-term debt (492) (776) (425)
Net repayments of commercial paper 0 0 (200)
Proceeds from settlement of cash flow hedges 0 882 20
Payments for settlement of cash flow hedges 0 (835) 0
Other, net (22) 15 (19)
Net cash used in financing activities (507) (1,895) (1,950)
Effect of exchange rate changes on cash 82 (88) 34
Increase (decrease) in cash and cash equivalents and restricted cash 61 (17) 1,249
Cash and cash equivalents and restricted cash at beginning of period 3,388 3,405 2,156
Cash and cash equivalents and restricted cash at end of period 3,449 3,388 3,405
Supplemental Cash Flow Information:      
Interest paid, net of capitalized interest 483 503 487
Net income taxes paid $ 393 $ 343 $ 465
v3.25.4
Consolidated Statements of Shareholders' Equity - USD ($)
$ in Millions
Total
Ordinary shares
Treasury stock, common
Additional Paid-in Capital
Retained Earnings
Accumulated Other Comprehensive Loss
Company Share of Shareholders’ Equity
Non- Controlling Interests
Beginning balance at Dec. 31, 2022   $ 19 $ (1,346) $ 6,119 $ 9,195 $ (1,372) $ 12,615 $ 14
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net income (loss) $ 2,121       2,121   2,121 0
Other comprehensive income (loss) (104)         (104) (104) 0
Share-based compensation     107 26 (7)   126 0
Dividends - common stock         (1,610)   (1,610) 0
Dividends - redeemable non-controlling interests (7)       (7)   (7) 0
Repurchases of Company ordinary shares (211)   (211)       (211) 0
Ending balance at Dec. 31, 2023   19 (1,450) 6,145 9,692 (1,476) 12,930 14
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net income (loss) 1,367       1,367   1,367 0
Other comprehensive income (loss) (56)         (56) (56) 0
Share-based compensation     148 5 (7)   146 0
Dividends - common stock (1,720)       (1,720)   (1,720) 0
Dividends - redeemable non-controlling interests (7)       (7)   (7) 0
Repurchases of Company ordinary shares (198)   (198)       (198) 0
Distributions to non-controlling interests               (2)
Ending balance at Dec. 31, 2024 12,474 19 (1,500) 6,150 9,325 (1,532) 12,462 12
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net income (loss) (738)       (738)   (738) 0
Other comprehensive income (loss) 222         222 222 0
Share-based compensation     114 (2) (4)   108 0
Dividends - common stock (1,764)       (1,764)   (1,764) 0
Dividends - redeemable non-controlling interests (7)       (7)   (7) 0
Repurchases of Company ordinary shares (201)   (201)       (201) 0
Distributions to non-controlling interests               (1)
Ending balance at Dec. 31, 2025 $ 10,093 $ 19 $ (1,587) $ 6,148 $ 6,812 $ (1,310) $ 10,082 $ 11
v3.25.4
Consolidated Statements of Shareholders' Equity (Parentheticals) - $ / shares
1 Months Ended 12 Months Ended
Nov. 30, 2025
Aug. 31, 2025
May 31, 2025
Feb. 28, 2025
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Statement of Stockholders' Equity [Abstract]              
Common stock, dividends per share (in dollars per share)         $ 5.45 $ 5.27 $ 4.94
Redeemable non-controlling interests, dividends per share (in dollars per share) $ 15.00 $ 15.00 $ 15.00 $ 15.00 $ 60.00 $ 60.00 $ 60.00
v3.25.4
Description of Company and Operations
12 Months Ended
Dec. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Description of Company and Operations Description of Company and Operations
LyondellBasell Industries N.V. is a limited liability company (Naamloze Vennootschap) incorporated under Dutch law by deed of incorporation dated October 15, 2009. Unless otherwise indicated, the “Company,” “we,” “us,” “our” or similar words are used to refer to LyondellBasell Industries N.V. together with its consolidated subsidiaries (“LyondellBasell N.V.”).
LyondellBasell N.V. is a worldwide manufacturer of chemicals and polymers, a significant producer of gasoline blending components and a developer and licensor of technologies for the production of polymers.
v3.25.4
Summary of Significant Accounting Policies
12 Months Ended
Dec. 31, 2025
Accounting Policies [Abstract]  
Summary of Significant Accounting Policies Summary of Significant Accounting Policies
Basis of Preparation and Consolidation
The accompanying Consolidated Financial Statements have been prepared from the books and records of LyondellBasell N.V. under accounting principles generally accepted in the United States (“U.S. GAAP”). Subsidiaries are defined as being those companies over which we, either directly or indirectly, have control through a majority of the voting rights or the right to exercise control or to obtain the majority of the benefits and be exposed to the majority of the risks. Subsidiaries are consolidated from the date on which control is obtained until the date that such control ceases. All intercompany transactions and balances have been eliminated in consolidation.
In February 2025, we ceased business operations at our Houston refinery. Accordingly, our refining business, previously disclosed as the Refining segment, is reported as a discontinued operation. The related operating results of our refining business are reported as discontinued operations for all periods presented.
Discontinued operations also include costs associated with the closure and dismantlement of our Berre refinery.
Cash and Cash Equivalents
Our cash equivalents consist of highly liquid debt instruments such as certificates of deposit, commercial paper and money market accounts with major international banks and financial institutions. Cash equivalents also include other instruments with maturities of three months or less when acquired and exclude restricted cash.
Short-Term Investments
Our investments in debt securities are classified as available-for-sale and held-to-maturity on the basis of our intent and ability to hold the investments. Investments classified as available-for-sale are carried at fair value with changes reflected in other comprehensive income (loss). Credit-related impairments, measured using expected cash flows and limited to the amount by which the amortized cost basis of a security exceeds its fair value, are recognized through an allowance for expected credit losses, and adjusted subsequently if conditions change, with a corresponding impact in earnings. Where there is an intention or a requirement to sell an impaired available-for-sale debt security, the entire impairment is recognized in earnings with a corresponding adjustment to the amortized cost basis of the security.
Investments classified as held-to-maturity are carried at amortized cost less allowance for credit losses recorded through Net income.
Trade Receivables
Trade receivables are amounts due from customers for merchandise sold or services performed in the ordinary course of business and are carried at transaction price net of allowance for credit losses. Allowance for credit losses is measured using historical loss rates for the respective risk categories and incorporating forward-looking estimates. The corresponding expense for the loss allowance is reflected in Selling, general and administrative expenses.
Inventories
Cost of our raw materials, work-in-progress and finished goods inventories is determined using the last-in, first-out (“LIFO”) method and is carried at the lower of cost or market value. Cost of our materials and supplies inventory is determined using the average cost method and is carried at the lower of cost and net realizable value.
Inventory exchange transactions, which involve fungible commodities, are not accounted for as purchases and sales. Any resulting volumetric exchange balances are accounted for as inventory, with cost determined using the LIFO method.
Property, Plant and Equipment
Property, plant and equipment are recorded at historical cost. Historical cost includes expenditures that are directly attributable to the acquisition of the items. Costs may also include borrowing costs incurred on debt during construction of major projects exceeding one year, costs of major maintenance arising from turnarounds of major units and legally obligated decommissioning costs. Routine maintenance costs are expensed as incurred.
Depreciation is computed using the straight-line method over the estimated useful lives of assets to their residual values. The residual values and useful lives of assets are reviewed, and adjusted if appropriate, whenever events or circumstances indicate that a revision is warranted. Land is not depreciated.
We evaluate property, plant and equipment for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Long-lived assets are grouped at the lowest level for which there are identifiable cash flows that are largely independent of the cash flows of other groups of assets, which, for us, is generally at the plant group level (or, at times, individual plants in certain circumstances where we have isolated production units with separately identifiable cash flows). If it is determined that an asset or asset group’s carrying value exceeded its estimated fair value, the asset is written down to its estimated fair value.
Equity Investments
We account for equity method investments (“equity investments”) using the equity method of accounting if we have the ability to exercise significant influence over, but do not control, an investee. Significant influence generally exists if we have an ownership interest representing between 20% and 50% of the voting rights. Under the equity method of accounting, investments are stated initially at cost and are adjusted for subsequent additional investments and our proportionate share of profit or losses and distributions.
We record our share of the profits or losses of the equity investments, net of income taxes, in the Consolidated Statements of Income (Loss). When our share of losses in an equity investment equals or exceeds the carrying amount of our investment including advances made by us, we do not recognize further losses, unless we have guaranteed obligations or are otherwise committed to provide further financial support to the investee.
We discontinue applying equity method accounting when our investment is reduced to zero. Equity method of accounting is resumed only after the investment realizes net income in excess of our share of net losses not recognized during the period equity method was suspended.

We assess our equity investments for impairment whenever events or changes in circumstances indicate that the carrying amount of the investment may not be recoverable. If the decline in value is considered to be other-than-temporary, the investment is written down to its estimated fair value.
Investments in PO Joint Ventures and the Louisiana Joint Venture—We share ownership with Covestro PO LLC, a subsidiary of Covestro AG (collectively “Covestro”), in a U.S. propylene oxide (“PO”) joint venture located in Texas (the “U.S. PO Joint Venture”) and a PO/styrene monomer (“SM” or “styrene”) joint venture located in The Netherlands (the “European PO Joint Venture”). We operate the U.S. PO Joint Venture manufacturing facility and arrange the logistics of product delivery. Each partner funds their share of capital expenditures, reimburses manufacturing operating expenses excluding depreciation and amortization expenses, and receives a share of production in-kind. In March 2025, we announced the permanent closure of our European PO Joint Venture. The European PO Joint Venture was formed solely for the benefit of the partners and did not manufacture for any other parties. We reported the cost of our product off-take as Inventory and the equity loss as Cost of sales in our Consolidated Financial Statements.
The U.S. PO Joint Venture owns a PO/SM and a PO/tertiary butyl alcohol (“TBA”) plant. Covestro’s interest in the U.S. PO Joint Venture represents ownership of an in-kind portion of the PO production of 680 thousand tons per year. We take, in-kind, the remaining PO production and all co-product production.
We share ownership in the Louisiana Integrated PolyEthylene JV LLC joint venture (the “Louisiana Joint Venture”) with Sasol Chemicals (USA) LLC. Under this arrangement, we have a 50% ownership interest in an ethane cracker, a low-density and linear-low density polyethylene plant, and associated infrastructure. Under the terms of the joint venture agreement, each partner provides pro-rata share of ethane feedstocks and off-takes pro-rata shares of cracker and polyethylene products in-kind. We operate the Louisiana Joint Venture assets and market the polyethylene off-take for all partners through our global sales team.
We account for the U.S. PO Joint Venture and the Louisiana Joint Venture, using the equity method. These joint ventures were formed solely for the benefit of the partners and do not manufacture for any other parties. We report the cost of our product off-take as Inventory and the equity loss as Cost of sales in our Consolidated Financial Statements. Related production cash flows are reported in the operating cash flow section of the Consolidated Statements of Cash Flows.
Our equity investment in the U.S. PO Joint Venture and the Louisiana Joint Venture represents our share of the manufacturing plants and is decreased by recognition of our share of equity loss, which is equal to the depreciation of the assets of these joint ventures. Other changes in the investment balance are principally due to our additional capital contributions to these joint ventures to fund capital expenditures. Such contributions are reported in the investing cash flow section of the Consolidated Statements of Cash Flows.
Our product off-take of PO and its co-products from the PO Joint Ventures was 1.9 million, 2.0 million and 2.2 million tons in 2025, 2024 and 2023, respectively. Our product off-take of ethylene and polyethylene produced from the Louisiana Joint Venture was 1.0 million, 1.1 million, and 1.2 million tons in 2025, 2024, and 2023, respectively.
Goodwill
Goodwill is tested for impairment annually in the fourth quarter or whenever events or changes in circumstances indicate that the fair value of a reporting unit with goodwill is less than its carrying amount. We first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value. Qualitative factors assessed for each of the reporting units include, but are not limited to, changes in long-term commodity prices, discount rates, competitive environments, planned capacity, cost factors such as raw material prices, and financial performance of the reporting units. If the qualitative assessment indicates that it is more likely than not that the carrying value of a reporting unit exceeds its fair value, a quantitative test is required. If the carrying value of the reporting unit including goodwill exceeds its fair value, an impairment charge equal to the excess would be recognized up to a maximum amount of goodwill allocated to that reporting unit.
In the third quarter of 2025, we evaluated goodwill for impairment due to the prolonged downturn in, and outlook for, the European petrochemical and global automotive industries, particularly affecting our Olefins and Polyolefins-Europe, Asia, International (“O&P-EAI”) and Advanced Polymer Solutions (“APS”) segments, combined with the sustained decline in our market capitalization. Our evaluation resulted in the recognition of non-cash goodwill impairments of $400 million and $572 million in our O&P-EAI and APS segments, respectively, in the third quarter of 2025. See Note 9 to the Consolidated Financial Statements.
In the fourth quarter of 2025, we performed a qualitative impairment assessment of our reporting units, which indicated that it was more likely than not that the fair value of our reporting units was greater than their carrying value including goodwill. Accordingly, a quantitative goodwill impairment test was not required.
Intangible Assets
Intangible assets consist of emission allowances, customer relationships and software costs. These assets are amortized using the straight-line method over their estimated useful lives or over the term of the related agreement. We evaluate definite-lived intangible assets with the associated long-lived asset group for impairment whenever impairment indicators are present.
Research and Development
Research and development (“R&D”) costs are expensed when incurred. Subsidies for R&D are included in Other income (expense), net. Depreciation expense related to assets employed in R&D is included as a cost of R&D.
Income Taxes
The income tax for the period comprises current and deferred tax. Income tax is recognized in the Consolidated Statements of Income (Loss), except to the extent that it relates to items recognized in other comprehensive income (loss) or directly in equity. In these cases, the applicable tax amount is recognized in other comprehensive income (loss) or directly in equity, respectively.
Deferred income taxes reflect the tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts recognized for income tax purposes, as well as the net tax effects of net operating loss carryforwards. Valuation allowances are provided against deferred tax assets when it is more likely than not that some portion or all of the deferred tax asset will not be realized.
We recognize uncertain income tax positions in our financial statements when we believe it is more likely than not, based on the technical merits, that the position or a portion thereof will be sustained upon examination. For a position that is more likely than not to be sustained, the benefit recognized is measured at the largest cumulative amount that is greater than 50 percent likely of being realized.
Leases
Leases with a term longer than 12 months are recorded on the balance sheet as a lease asset and lease liability. If at inception of a contract, a lease is identified, we recognize a lease asset and a corresponding lease liability based on the present value of the lease payments over the lease term, discounted using our incremental borrowing rate, unless an implicit rate is readily determinable. Lease payments include fixed and variable lease components derived from usage or market-based indices, such as the consumer price index. Other variable lease payments may fluctuate for a variety of reasons including usage, output, insurance or taxes. These variable amounts are expensed as incurred and not included in the lease assets or lease liabilities. Options to extend or terminate a lease are reflected in the lease payments and lease term when it is reasonably certain that we will exercise those options. Leases are classified as either finance or operating, with classification affecting the pattern of expense recognition in the Consolidated Statements of Income (Loss). The majority of our leases are operating leases for which we recognize lease expense on a straight-line basis over the lease term. We apply the practical expedient to account for lease and associated non-lease components as a single lease component for all asset classes with the exception of utilities and pipeline assets within major manufacturing equipment. For these assets, non-lease components are separated from lease components and accounted for as normal operating expenses. Leases with an initial term of 12 months or less are recognized in the Consolidated Statements of Income (Loss) on a straight-line basis over the lease term.
Other Provisions
Environmental Remediation Costs—Environmental remediation liabilities include liabilities related to sites we currently own, sites we no longer own, as well as sites where we have operated that belong to other parties. Liabilities for anticipated expenditures related to investigation and remediation of contaminated sites are accrued when it is probable a liability has been incurred and the amount of the liability can be reasonably estimated. Only certain post-remediation monitoring costs, the timing of which can be determined with reasonable certainty, are discounted to present value.
Asset Retirement Obligations—At some sites, we are legally obligated to decommission our plants upon site exit. Asset retirement obligations are recorded at the fair value using the present value of the estimated costs to retire the asset at the time the obligation is incurred. That cost, which is capitalized as part of the related long-lived asset, is depreciated on a straight-line basis over the remaining useful life of the related asset. Accretion expense in connection with the discounted liability is recognized over the estimated timeline to settle the obligation. Such depreciation and accretion expenses are included in Cost of sales.
Redeemable Non-controlling Interests
Our redeemable non-controlling interests relate to shares of cumulative perpetual special stock (“redeemable non-controlling interest stock”) issued by our consolidated subsidiary, formerly known as A. Schulman, Inc. (“A. Schulman”). Holders of redeemable non-controlling interest stock are entitled to receive cumulative dividends at the rate of 6% per share and the liquidation preference of $1,000 per share. Redeemable non-controlling interest stock may be redeemed at any time at the discretion of the holders and is reported in the Consolidated Balance Sheets outside of permanent equity. Dividends on these shares are deducted from or added to the amount of Income (loss) attributable to the Company shareholders if and when declared by the Company.
Foreign Currency Translation and Remeasurement
Functional and Reporting Currency—Items included in the financial information of each of LyondellBasell N.V.’s entities are measured using the currency of the primary economic environment in which the entity operates (“the functional currency”) and then translated to the U.S. dollar (“the reporting currency”) as follows:
Assets and liabilities for each balance sheet presented are translated at the closing rate at the date of that balance sheet;
Income and expenses for each income statement are translated at monthly average exchange rates; and
All resulting exchange differences are recognized as a separate component within other comprehensive income (loss) (foreign currency translation adjustments).
Transactions and Balances—Foreign currency transactions are recorded in their respective functional currency using exchange rates prevailing at the dates of the transactions. Exchange gains and losses resulting from the settlement of such transactions and from remeasurement of monetary assets and liabilities denominated in foreign currencies at the balance sheet date are recognized in earnings.
Revenue Recognition
Substantially all our revenues are derived from contracts with customers. We account for contracts when both parties have approved the contract and are committed to perform, the rights of the parties and payment terms have been identified, the contract has commercial substance and collectability is probable.
Revenue is recognized when obligations under the terms of a contract with our customer are satisfied. This generally occurs at the point in time when performance obligations are fulfilled and control transfers to the customer. In most instances, control transfers upon transfer of risk of loss and title to the customer, which usually occurs when we ship products to the customer from our manufacturing facility. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring goods. Customer incentives are generally based on volumes purchased and recognized over the period earned. Sales, value-added, and other taxes that we collect concurrent with revenue-producing activities are excluded from the transaction price as they represent amounts collected on behalf of third parties. We apply the practical expedient to recognize the incremental costs of obtaining a contract as an expense when incurred if the amortization period of the asset that we otherwise would have recognized is one year or less. Shipping and handling costs are treated as a fulfillment cost and not as a separate performance obligation.
We have marketing arrangements to off-take and sell the production of some of our joint ventures in return for a percentage of the price realized on the sales to the end customer. In such arrangements, when we obtain control of the product, revenue and cost of sales are presented on a gross basis. Otherwise, we recognize revenue, net of amounts due to the joint venture, which represents commissions earned.
Payments are typically required within a short period following the transfer of control of the product to the customer. We occasionally require customers to prepay purchases to ensure collectability. Such prepayments do not represent financing arrangements, since payment occurs within a short time frame. We apply the practical expedient which permits us to disregard the effects of a significant financing component when, at contract inception, we expect the period between the payment and fulfillment of the performance obligation will be one year or less.
Contract balances typically arise when a difference in timing between the transfer of control to the customer and receipt of consideration occurs. Our contract liabilities, which are reflected in our Consolidated Financial Statements as Accrued and other current liabilities, and Other liabilities, consist primarily of customer payments for products or services received before the transfer of control to the customer occurs.
Share-Based Compensation
We grant restricted stock units (“RSUs”), performance share units (“PSUs”), and other cash and stock awards to employees as a form of compensation. Prior to 2024, we also granted stock option awards (“Stock options”). Our share-based compensation awards are accounted for as equity-classified awards with compensation expense based on the grant date fair value and recognized over the vesting period in the income statement. We use a straight-line vesting method for cliff-vested awards and a graded vesting method for ratable-vested awards. We have elected to recognize forfeitures as they occur for stock-based compensation. When options are exercised and awards are paid out, shares are issued from our treasury shares. The holders of unvested RSUs are entitled to nonforfeitable dividend equivalents settled in the form of cash payments, which are recognized as dividends in Retained earnings. Outstanding PSUs accrue dividend equivalent units, which will be converted to shares upon payment at the end of the performance period and are classified as Accrued and other current liabilities and Other liabilities on the Consolidated Balance Sheets. Dividend equivalents for PSUs are also recorded in Retained earnings. See Notes 17 and 20 to the Consolidated Financial Statements for additional information.
Financial Instruments and Hedging Activities
Pursuant to our risk management policies, we selectively enter into derivative transactions to manage market risk volatility associated with changes in commodity pricing, currency exchange rates and interest rates. Certain derivatives used for this purpose are designated as net investment hedges, cash flow hedges or fair value hedges. Derivative instruments are recorded at fair value on the balance sheet. Gains and losses related to changes in the fair value of derivative instruments not designated as hedges are recorded in earnings.
Cash flows from derivatives designated as hedges are reported in our Consolidated Statements of Cash Flows under the same category as the cash flows from the hedged items unless the derivative contract contains a significant financing element. Cash flows for derivatives with a significant financing element are classified as Cash flows from financing activities. Cash flows related to economic hedges are classified consistent with the cash flows of the economic hedged items.
Net Investment Hedges—We enter into foreign currency derivatives and foreign currency denominated debt to reduce the volatility in shareholders’ equity resulting from changes in currency exchange rates of our foreign subsidiaries with respect to the U.S. dollar. Our foreign currency derivatives consist of cross-currency contracts and forward exchange contracts.
We use the critical terms approach through the application of the spot method to assess hedge effectiveness at least quarterly. For derivatives designated as net investment hedges, gains or losses attributable to changes in spot foreign exchange rates over the designation period are reflected in foreign currency translation adjustments within other comprehensive income (loss). Recognition in earnings is delayed until the net investment is sold or liquidated. At that time, the amount recognized is reported in the same line item as the gain or loss on the liquidation of the hedged foreign operations. For our cross-currency swaps, the associated interest receipts and payments are recorded in Interest expense. For our foreign currency forward contracts, we amortize initial forward point values on a straight-line basis to interest expense over the life of the hedging instrument. We monitor on a quarterly basis for any over-hedged positions requiring de-designation and re-designation of the hedge to remove such over-hedged condition.
Cash Flow Hedges—We enter into cash flow hedges to manage the variability in cash flows of a future transaction. Our cash flow hedges include cross currency swaps, forward starting interest rate swaps and commodity swaps. For derivatives designated as cash flow hedges, the gains and losses are recorded in other comprehensive income (loss) and released to earnings in the same line item and in the same period during which the hedged item affects earnings.
We use the critical terms and the quantitative long-haul methods to assess hedge effectiveness and monitor, at least quarterly, any change in effectiveness.
We have cross-currency swap contracts designated as cash flow hedges to reduce our exposure to the foreign currency exchange risk associated with certain intercompany loans. Under the terms of these contracts, we make interest payments in euros and receive interest in U.S. dollars. Upon the maturities of these contracts, we will pay the principal amount of the loans in euros and receive U.S. dollars from our counterparties.
We enter into forward-starting interest rate contracts to mitigate the risk of adverse changes in benchmark interest rates on future anticipated debt issuances.
We also execute commodity futures, options and swaps to manage the volatility of the commodity price related to anticipated purchases of raw materials and product sales. We enter into over-the-counter commodity swaps and options with one or more counterparties whereby we pay a predetermined fixed price and receive a price based on the average monthly rate of a specified index for the specified nominated volumes.
Fair Value Hedges—We use interest rate swaps as part of our current interest rate risk management strategy to achieve a desired proportion of variable versus fixed rate debt. Under these arrangements, we exchange fixed-rate for floating-rate interest payments to effectively convert our fixed-rate debt to floating-rate debt. For derivatives that have been designated as fair value hedges, the gains and losses of the derivatives and hedged items are recorded in earnings.
We use the long-haul method to assess hedge effectiveness using a regression analysis approach at least quarterly. We perform the regression analysis over an observation period of three years, utilizing data that is relevant to the hedge duration.
Fair Value Measurements
We categorize assets and liabilities, measured at fair value, into one of three different levels depending on the observability of the inputs employed in the measurement. Level 1 inputs are quoted prices for identical instruments in active markets. Level 2 inputs are quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs or significant value-drivers are observable. Level 3 inputs are model-derived valuations in which one or more significant inputs or significant value-drivers are unobservable.
Fair value measurements are classified according to the lowest level input or value-driver that is significant to the valuation. A measurement may therefore be classified within Level 3 even though there may be significant inputs that are readily observable.
Changes in Fair Value Levels—We review disclosures regarding fair value measurements at least quarterly. If an instrument classified as Level 1 subsequently ceases to be actively traded, it is transferred out of Level 1. In such cases, instruments are reclassified as Level 2, unless the measurement of its fair value requires the use of significant unobservable inputs, in which case it is reclassified as Level 3.
We use the following inputs and valuation techniques to estimate the fair value of our financial instruments disclosed in Note 15 to the Consolidated Financial Statements.
Cross-Currency Swaps—The fair value of our cross-currency swaps is calculated using the present value of future cash flows discounted using observable inputs such as known notional value amounts, yield curves, basis curves, as applicable, and with the foreign currency leg revalued using published spot and forward exchange rates on the valuation date.
Forward-Starting and Fixed-for-Floating Interest Rate Swaps—The fair value of our forward-starting and fixed-for-floating interest rate swaps is calculated using the present value of future cash flows using observable inputs such as benchmark interest rates and market yield curves.
Commodity Derivatives—The fair values of our commodity derivatives are measured using closing market prices of public exchanges and from third-party broker quotes and pricing providers.
The fair value of our commodity swaps classified as Level 2 is determined using a combination of observable and unobservable inputs. The observable inputs consist of future market values of various crude and heavy fuel oils, which are readily available through public data sources. The unobservable input, which is the estimated discount or premium used in the market pricing, is calculated using an internally-developed, multi-linear regression model based on the observable prices of the known components and their relationships to historical prices. A significant change in this unobservable input would not have a material impact on the fair value measurement of our Level 2 commodity swaps.
Forward Exchange Contracts—The fair value of our forward exchange contracts is based on forward market rates.
Equity Securities—The fair value of our investment in equity securities is based on the net asset value provided by the fund administrator.
Short-Term Debt—The fair value of short-term borrowings related to precious metal financing arrangements, accounted for as embedded derivatives, is determined based on the future price of the associated precious metal.
Long-Term Debt—The fair value of our senior and guaranteed notes is calculated using pricing data obtained from well-established and recognized vendors of market data for debt valuations.
Fair Value Measurements - Pension Assets
We use the following inputs and valuation techniques to estimate the fair value of our pension assets disclosed in Note 16 to the Consolidated Financial Statements.
Common and Preferred Stock—Valued at the closing price reported on the market on which the individual securities are traded.
Fixed Income Securities—Certain securities that are not traded on an exchange are valued at the closing price reported by pricing services. Other securities are valued based on yields currently available on comparable securities of issuers with similar credit ratings.
Commingled Funds—Valued based upon the net asset value of units of such commingled trust funds held at year end by the pension plans. Unit values are based on the fair value of the underlying assets of the fund derived from inputs principally from, or corroborated by, observable market data by correlation or other means.
Real Estate Funds—Valued based upon the net asset value of units of the real estate fund or partnership held by the master trust at year end.
Hedge Funds—Valued based upon the unit values of such alternative investments held at year end by the pension plans. Unit values are based on the fair value of the underlying assets of the fund.
Private Equity—Valued based upon the unit values of such alternative investments held at year end by the pension plans. Unit values are based on the fair value of the underlying assets of the fund. Certain securities held in the fund are valued at the closing price reported on an exchange or other established quotation service for over-the-counter securities. Other assets held in the fund are valued based on the most recent financial statements prepared by the fund manager.
Convertible Securities—Valued at the quoted prices for similar assets or liabilities in active markets.
U.S. Government Securities—Certain securities, including Separate Trading of Registered Interest and Principal of Securities, are valued at the closing price reported on the active market on which the individual securities are traded.
Cash and Cash Equivalents—Valued at the quoted prices for identical assets or liabilities in active markets.
Non-U.S. Insurance Arrangements—Valued based upon the estimated cash surrender value of the underlying insurance contract, which is derived from an actuarial determination of the discounted benefits cash flows.
Employee Benefits
Pension Plans—We have funded and unfunded defined benefit plans and defined contribution plans. For the defined benefit plans, a projected benefit obligation is calculated annually by independent actuaries using the projected unit credit method. Pension costs primarily represent the increase in the actuarial present value of the obligation for pension benefits based on employee service during the year and the interest on this obligation in respect of employee service in previous years, net of expected return on plan assets.
Actuarial gains and losses arising from experience adjustments and changes in actuarial assumptions are charged or credited to equity and are reflected in Accumulated other comprehensive income (loss) in the period in which they arise.
Other Post-Employment Obligations—Certain employees are entitled to post-retirement medical benefits upon retirement. The entitlement to these benefits is usually conditional on the employee remaining in service up to retirement age and the completion of a minimum service period. The expected costs of these benefits are accrued over the period of employment applying the same accounting methodology used for defined benefit plans.
Termination Benefits—Contractual termination benefits are payable when employment is terminated due to an event specified in the provisions of a social/labor plan or statutory law. A liability is recognized for one-time termination benefits when we are committed to (i) make payments and the number of affected employees and the benefits to be received are known to both parties, and (ii) terminating the employment of current employees according to a detailed formal plan without possibility of withdrawal and can reasonably estimate such amount. Benefits falling due more than 12 months after the balance sheet date are discounted to present value.
Use of Estimates
The preparation of financial statements in conformity with generally accepted accounting principles requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates.
Supply Chain Finance Arrangements
We facilitate a voluntary supply chain finance program that provides suppliers, at their sole discretion, the opportunity to sell their receivables due from us to a participating financial intermediary in order to be paid earlier than our contracted payment terms. We are not a party to any agreement between our suppliers and the financial intermediary. When a supplier utilizes the program and receives an early payment from the financial intermediary, the supplier takes a discount on the invoice. We pay the financial intermediary the full amount of the invoice on the contractually agreed upon due date. The majority of the suppliers using the program are on 90 to 120 day payment terms. There is no economic impact to the Company from a supplier’s decision to take an early payment. No guarantees are provided by us or any of our subsidiaries under the program.
As of December 31, 2025 and 2024, Accounts payable-Trade included $108 million and $141 million, respectively, payable to suppliers who have elected to participate in the supply chain financing program.
The following table summarizes the activity in our supply chain financing program included in Accounts Payable-Trade:
Year Ended December 31,
Millions of dollars20252024
Confirmed obligations outstanding at the beginning of the year$141 $65 
Invoices confirmed during the year790 767 
Confirmed invoices paid during the year(823)(691)
Confirmed obligations outstanding at the end of the year$108 $141 
Recently Adopted Guidance
Income Tax Disclosures—In December 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The guidance requires companies to disclose certain specific categories in the rate reconciliation and provide additional information for reconciling items that meet the quantitative threshold of 5% of the expected tax using the applicable statutory income tax rate. There is also a required disclosure to provide the net income taxes paid or received disaggregated by federal, state, and foreign taxes with jurisdictions to be separately disclosed if the jurisdiction is 5% or more of the total net income taxes paid or received. The guidance is effective for annual periods beginning after December 15, 2024. Earlier adoption is permitted. The new guidance has been applied prospectively in 2025. There is no material impact on our Consolidated Financial Statements as the guidance relates only to disclosure.
Accounting Guidance Issued But Not Adopted as of December 31, 2025
Grants—In December 2025, the FASB issued ASU 2025-10, Government Grants (Topic 832): Accounting for Government Grants Received by Business Entities. This ASU provides guidance for recognition, measurement, and presentation of government grants. The guidance is effective for annual reporting periods beginning after December 15, 2028, and interim reporting periods within those annual reporting periods and may be applied using either a modified prospective, a modified retrospective or a retrospective approach. Early adoption is permitted. The adoption of this guidance will not have a material impact on our Consolidated Financial Statements.
Accounting for Software Costs—In September 2025, the FASB issued ASU 2025-06, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software. This guidance amends certain aspects of the accounting for and disclosure of software costs, including when entities start capitalizing eligible costs. This guidance also supersedes existing guidance on website development costs. The guidance is effective for annual reporting periods beginning after December 15, 2027, and interim periods within those annual reporting periods. Early adoption is permitted. We are currently assessing the impact the adoption will have on our Consolidated Financial Statements.
Measurement of Credit Losses—In July 2025, the FASB issued ASU 2025-05, Financial InstrumentsCredit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets. This guidance allows entities to elect a practical expedient related to the estimation of expected credit losses for current accounts receivable and current contract assets that arise from transactions accounted for under ASC 606. The guidance is effective for annual reporting periods beginning after December 15, 2025, and interim periods within those annual reporting periods. Early adoption is permitted. The adoption of this guidance will not have a material impact on our Consolidated Financial Statements.
Expense Disaggregation Disclosures—In November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses. This guidance requires incremental disclosures about specific expense categories, including but not limited to, purchases of inventory, employee compensation, depreciation, amortization and selling expenses. The amendments are effective for fiscal years beginning after December 15, 2026, and for interim periods within fiscal years beginning after December 15, 2027. While permitted, we do not plan to early adopt this guidance. The guidance may be applied either prospectively or retrospectively. The adoption of this guidance will not have a material impact on our Consolidated Financial Statements as the guidance relates only to disclosure.
v3.25.4
Discontinued Operations
12 Months Ended
Dec. 31, 2025
Discontinued Operations and Disposal Groups [Abstract]  
Discontinued Operations Discontinued Operations
Discontinued operations consists primarily of our refining business. The following table presents components of Income (loss) from discontinued operations, net of tax:
Year Ended December 31,
Millions of dollars202520242023
Sales and other operating revenues$2,083 $8,559 $9,714 
Cost of sales2,032 8,639 9,357 
Other impairments— — 11 
Selling, general and administrative expenses20 18 
Operating income (loss)45 (100)328 
Other income (expense), net16 (5)
Provision for (benefit from) income taxes14 (19)68 
Income (loss) from discontinued operations, net of tax$47 $(75)$255 
v3.25.4
Assets Held for Sale
12 Months Ended
Dec. 31, 2025
Assets Held For Sale [Abstract]  
Assets Held for Sale Assets Held for Sale
In June 2025, we entered into an agreement for the sale of select European olefins and polyolefins assets and the associated business. The sites to be sold were part of the previously announced European strategic assessment and are located in Berre l’Etang (France), Münchsmünster (Germany), Carrington (United Kingdom), and Tarragona (Spain). These sites, identified for sale, are within our O&P-EAI segment. The agreement was a put option, under which the purchaser committed to enter into an agreed form purchase agreement if we exercised our put option, after conclusion of certain works council consultation processes.
In October 2025, following the completion of the French works council consultation processes, we exercised our put option and entered into the sale and purchase agreement. This agreement contains customary representations, warranties and covenants by the parties, including post-closing covenants related to employee and other matters.
Closing of the proposed transaction is currently expected in the second quarter of 2026, subject to customary closing conditions, including completion of the carve-out and transfer of the relevant assets and liabilities to the business being sold. The assets and liabilities associated with the business to be sold are classified as held for sale in the Consolidated Balance Sheets as of December 31, 2025.
In connection with the sale, we expect to recognize a loss on sale of approximately $700 million to $900 million upon closing. The loss principally consists of the transfer of net working capital of approximately $340 million, a cash contribution of approximately $300 million to the sold businesses prior to closing, a foreign currency translation adjustment of approximately $300 million to $400 million, and a net equity method investment of approximately $10 million, partially offset by the transfer of pension and other liabilities of $150 million to $250 million.
Other costs, including selling expenses, separation costs, and employee-related costs, are estimated to range from approximately $100 million to $150 million and are expected to be incurred primarily prior to closing. During 2025, we recognized $36 million of these costs, which are included in Selling, general and administrative expenses on the Consolidated Statements of Income (Loss).
During 2025, we recognized non-cash impairment charges of $56 million related to property, plant and equipment. The fair value of the disposal group was determined based on the expected consideration and other fair value indicators obtained through our marketing efforts and classified as Level 2 within the fair value hierarchy. The impairment charges are presented within Other impairments on the Consolidated Statements of Income (Loss).
The following table summarizes the assets and liabilities classified as held for sale in the Consolidated Balance Sheets:
Millions of dollarsDecember 31, 2025
ASSETS
Accounts receivable - Trade, net$272 
Inventories407 
Prepaid expense and other current assets22 
Operating lease assets12 
Equity investments28 
Other assets16 
Total assets held for sale$757 
LIABILITIES
Accounts payable - Trade$225 
Accrued and other current liabilities129 
Operating lease liabilities
Other liabilities272 
Deferred income taxes30 
Total liabilities held for sale$665 
v3.25.4
Revenues
12 Months Ended
Dec. 31, 2025
Revenue from Contract with Customer [Abstract]  
Revenues Revenues
Contract Balances—Contract liabilities were $125 million and $117 million as of December 31, 2025 and 2024, respectively. Revenue recognized in each reporting period that was included in the contract liability balance at the beginning of the period was immaterial.
Disaggregation of Revenues—We participate globally across the petrochemical value chain and are an industry leader in many of our product lines. Our chemicals businesses consist primarily of large processing plants that convert large volumes of liquid and gaseous hydrocarbon feedstocks into plastic resins and other chemicals. Our chemical products tend to be basic building blocks for other chemicals and plastics. Our plastic products are used in large volumes as well as smaller specialty applications.
Revenues disaggregated by key products are summarized below:
Year Ended December 31,
Millions of dollars202520242023
Sales and other operating revenues:
Olefins and co-products$4,184 $5,061 $4,874 
Polyethylene7,203 7,583 7,587 
Polypropylene5,849 6,287 5,642 
Propylene oxide and derivatives2,150 2,357 2,287 
Oxyfuels and related products4,828 5,074 5,650 
Intermediate chemicals1,886 2,693 2,896 
Compounding and solutions3,457 3,616 3,686 
Other596 723 714 
Total$30,153 $33,394 $33,336 
The following table presents our revenues disaggregated by geography, based upon the location of the customer:
Year Ended December 31,
Millions of dollars202520242023
Sales and other operating revenues:
United States$11,059 $12,587 $12,386 
Germany2,202 2,410 2,547 
China1,782 2,375 2,164 
Mexico1,557 1,729 1,500 
Italy1,321 1,418 1,365 
Japan1,261 1,338 1,749 
France1,161 1,069 1,091 
Poland790 923 905 
The Netherlands731 724 805 
Other8,289 8,821 8,824 
Total$30,153 $33,394 $33,336 
Transaction Price Allocated to the Remaining Performance Obligations—Our contracts with customers are commodity supply arrangements that settle based on market prices at future delivery dates; therefore, transaction prices are entirely variable. Transaction prices are known at the time revenue is recognized, as they are generally determined by the commodity price index at a specific date, at month-end or at the month average once products are shipped to our customers. Future estimates of transaction prices for disclosure purposes are substantially constrained, as they are highly susceptible to factors outside our control, including volatility in commodity markets, industry production capacities and operating rates, planned and unplanned industry operating interruptions, foreign exchange rates and worldwide geopolitical trends. We have elected the practical expedient to not disclose unsatisfied performance obligations with an original contract duration of one year or less.
v3.25.4
Related Party Transactions
12 Months Ended
Dec. 31, 2025
Related Party Transactions [Abstract]  
Related Party Transactions Related Party Transactions
We have related party transactions with our joint ventures. These related party transactions include the sales and purchases of goods and services in the normal course of business as well as certain financing arrangements.
These transactions are summarized as follows:
 Year Ended December 31,
Millions of dollars202520242023
The Company billed related parties for:
Sales of products$572 $634 $614 
Shared service agreements10 
Total$581 $644 $618 
Related parties billed the Company for:
Sales of products$3,442 $3,899 $3,673 
Shared service agreements38 40 79 
Total$3,480 $3,939 $3,752 
v3.25.4
Accounts Receivable
12 Months Ended
Dec. 31, 2025
Receivables [Abstract]  
Accounts Receivable Accounts Receivable
Our receivables primarily consist of customer accounts. We perform ongoing credit evaluations of our customers’ financial condition and, in certain circumstances, require letters of credit or corporate guarantees from them. Accounts receivable are reflected in the Consolidated Balance Sheets, net of allowance for credit losses of $3 million and $4 million as of December 31, 2025 and 2024, respectively. We recorded provisions for credit losses for receivables, which are reflected in the Consolidated Statements of Income (Loss), however, such amounts were immaterial for each of the years ended December 31, 2025, 2024 and 2023.
v3.25.4
Inventories
12 Months Ended
Dec. 31, 2025
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories consisted of the following components at December 31:
Millions of dollars20252024
Finished goods$2,238 $3,014 
Work-in-process69 145 
Raw materials and supplies1,226 1,499 
Total inventories$3,533 $4,658 
At December 31, 2025 and 2024, approximately 77% and 75%, respectively, of our inventories were valued using the LIFO method and the remaining inventories, consisting primarily of materials and supplies, were valued at the moving average cost method. The excess of the estimated net realizable value of our inventories over LIFO cost was approximately $495 million and $1,310 million at December 31, 2025 and 2024, respectively.
In 2025, inventory liquidations associated with our exit from the refinery business generated a LIFO benefit of $196 million, net of tax, or $0.60 per diluted share. This benefit is reflected in Income (loss) from discontinued operations, net of tax in the Consolidated Statements of Income (Loss).
v3.25.4
Property, Plant and Equipment, Goodwill and Intangible Assets
12 Months Ended
Dec. 31, 2025
Property, Plant and Equipment, Goodwill and Intangible Assets [Abstract]  
Property, Plant and Equipment, Goodwill and Intangible Assets Property, Plant and Equipment, Goodwill and Intangible Assets
Property, Plant and Equipment—The components of property, plant and equipment, at cost, and the related accumulated depreciation are as follows at December 31:
Millions of dollarsEstimated Useful Life (years)20252024
Land$292 $280 
Major manufacturing equipment2515,009 14,303 
Buildings302,629 2,508 
Light equipment and instrumentation5-203,957 3,471 
Office furniture1536 21 
Major turnarounds4-72,085 1,803 
Information system equipment3-560 70 
Construction in progress1,734 1,718 
Total property, plant and equipment25,802 24,174 
Less accumulated depreciation(9,969)(9,108)
Property, plant and equipment, net$15,833 $15,066 
Disposition of Ethylene Oxide & Derivatives (“EO&D”) Business—In May 2024, we sold our U.S. Gulf Coast-based EO&D business along with the production facilities located in Bayport, TX. The EO&D business was included in our I&D segment. In connection with the sale, we received cash proceeds of $689 million and recognized a pre-tax gain of $284 million in 2024.
Capitalized Interest—We capitalize interest costs incurred on funds used to construct property, plant and equipment. In 2025, 2024 and 2023, we capitalized interest of $30 million, $19 million and $7 million, respectively.
Intangible Assets—The components of identifiable intangible assets, at cost, and the related accumulated amortization are as follows at December 31:
 20252024
Millions of dollarsCostAccumulated
Amortization
NetCostAccumulated
Amortization
Net
Emission allowances$750 $(535)$215 $744 $(525)$219 
Customer relationships128 (56)72 309 (125)184 
Software costs231 (113)118 188 (86)102 
Other704 (659)45 728 (656)72 
Total intangible assets$1,813 $(1,363)$450 $1,969 $(1,392)$577 
Amortization of these identifiable intangible assets for the next five years is expected to be $61 million in 2026, $44 million in 2027, $32 million in 2028, $23 million in 2029 and $23 million in 2030.
Depreciation and Amortization Expense—Depreciation and amortization expense is summarized as follows:
 Year Ended December 31,
Millions of dollars202520242023
Property, plant and equipment$1,180 $1,173 $1,145 
PO Joint Ventures and Louisiana Joint Venture125 118 148 
Emission allowances
Customer relationships17 21 20 
Software costs28 23 17 
Other32 29 38 
Total depreciation and amortization$1,390 $1,372 $1,376 
Asset Retirement Obligations—In certain cases, we are contractually obligated to decommission our plants upon exiting a site. In such cases, we have accrued the net present value of the estimated costs. As of December 31, 2025 and 2024, asset retirement obligations associated with our exit from the refinery business were $154 million and $262 million, respectively. The remaining asset retirement obligations are related to our facilities in Europe.
The changes in our asset retirement obligations are as follows:
 Year Ended December 31,
Millions of dollars20252024
Beginning balance$315 $311 
Liabilities settled(118)(6)
Changes in estimates(1)
Accretion expense
Effects of exchange rate changes(2)
Reclassified to liabilities held for sale
(8)— 
Ending balance$203 $315 
Although we may have asset retirement obligations associated with some of our other facilities, the present value of these obligations is not material given the indefinite expected life of the facilities. We continually review optimal future alternatives for our facilities. Any decision to retire one or more facilities could result in an increase in the present value of such obligations.
Goodwill—The changes in the carrying amount of goodwill in each of the Company’s reportable segments for the years ended December 31, 2025 and 2024 were as follows:
Millions of dollarsO&P -
Americas
O&P -
EAI
I&DAPSTechnologyTotal
December 31, 2023$477 $380 $215 $567 $$1,647 
Foreign currency translation adjustments(5)(25)(6)(50)— (86)
December 31, 2024472 355 209 517 1,561 
Divestitures
— — — (2)— (2)
Impairment charges— (400)— (572)— (972)
Foreign currency translation adjustments45 16 57 — 121 
December 31, 2025$475 $— $225 $— $$708 
As of December 31, 2025, goodwill is presented net of accumulated impairment charges totaling $1,224 million, including $400 million and $824 million, recognized in our O&P–EAI and APS segments, respectively. Goodwill as of December 31, 2024 and 2023 is presented net of accumulated impairment charges of $252 million recognized in our APS segment.
2025 Impairments—In the third quarter of 2025, a prolonged downturn in, and outlook for, the European petrochemical and global automotive industries, particularly affecting our O&P-EAI and APS segments, combined with the sustained decline in our market capitalization, constituted a triggering event requiring a quantitative interim impairment test of goodwill and long- lived assets within these segments.
We used the income approach to determine the fair value of each asset group and reporting unit. This approach involves judgment, utilizing assumptions that are not readily observable, including projected operating results, economic conditions, expected cash flows, EBITDA growth rates, terminal values, and discount rates. These estimates are inherently subjective and classified as Level 3 within the fair value hierarchy. Based on this analysis, we recognized non-cash impairment charges totaling $1,182 million in the third quarter of 2025, which are presented in both Goodwill impairments and Other impairments on the Consolidated Statements of Income (Loss).
In addition, during 2025, we recognized other impairment charges in our Olefins and Polyolefins-Americas (“O&P-Americas”) and O&P-EAI segments of $9 million and $56 million, respectively, related to property, plant and equipment, which are presented in Other impairments on the Consolidated Statements of Income (Loss).
Total impairment charges for the year ended December 31, 2025 consist of the following:
Year Ended December 31, 2025
Millions of dollarsO&P–
America
O&P–
EAI
APSTotal
Impairments:
Goodwill$— $400 $572 $972 
Intangible assets— — 111 111 
Property, plant and equipment56 99 164 
Equity investments— — 
Total$$460 $782 $1,251 
2024 Impairments—In 2024, we announced a strategic review of some of our European assets with the goal of strengthening our future profitability. During the fourth quarter of 2024, as a part of our quarterly asset impairment analysis, we assessed the assets included in the scope of our strategic review for impairment. Our assessment resulted in the recognition of a $837 million non-cash property, plant and equipment impairment charge in our O&P-EAI segment. The impairment charge reflects challenging market conditions in the region. Additionally, unfavorable market conditions resulted in the loss of customers in our APS specialty powders business unit, resulting in a non-cash impairment charge of $55 million related to property, plant and equipment.
Fair values for these impairments were determined utilizing a discounted cash flow method under the income approach and assumptions including our view on long-term growth rates in our industry, discount rates and other assumptions based on a market participant perspective. In the fourth quarter of 2024 we launched a marketing effort to gauge market interest in the European assets included in our strategic review. Fair value indicators obtained through our marketing efforts were also considered. These are inherently subjective fair value measurements and are classified as Level 3 within the fair value hierarchy and are presented in Other impairments on the Consolidated Statements of Income (Loss).
2023 Impairments—Effective January 1, 2023, our Catalloy and polybutene-1 businesses were moved from our APS segment and reintegrated into our O&P-Americas and O&P-EAI segments. Accordingly, on January 1, 2023, we allocated goodwill of $584 million from our APS segment to our O&P-Americas and O&P-EAI segments. The amounts allocated were $315 million and $269 million for O&P-Americas and O&P-EAI segments, respectively. The allocation was based on the fair values of the businesses that were reintegrated relative to the fair value of the APS segment.
As a result of the reallocation of goodwill and the change in both fair value and carrying value among reporting units, we recognized a non-cash goodwill impairment charge of $252 million in the first quarter of 2023 in our APS segment. Fair values were determined utilizing a discounted cash flow method under the income approach and assumptions including our view on long-term growth rates in our industry, discount rates and other assumptions based on a market participant perspective, which are inherently subjective. The fair value of the reporting unit is Level 3 within the fair value hierarchy. The charge is presented in Goodwill impairments on the Consolidated Statements of Income (Loss).
We also recognized impairment charges related to equity investments of $192 million, see Note 10 to the Consolidated Financial Statements for additional information.
v3.25.4
Equity Investments
12 Months Ended
Dec. 31, 2025
Equity Method Investments and Joint Ventures [Abstract]  
Equity Investments Equity Investments
Our significant equity investments are as follows at December 31:
Percent of Ownership20252024
Olefins and Polyolefins-Americas
Louisiana Joint Venture50.00 %50.00 %
Indelpro S.A. de C.V. 49.00 %49.00 %
Olefins and Polyolefins-Europe, Asia, International
Basell Orlen Polyolefins Sp. Z.o.o. 50.00 %50.00 %
PolyMirae Co. Ltd. 50.00 %50.00 %
Bright LyondellBasell Petrochemical Co. Ltd.50.00 %50.00 %
National Petrochemical Industrial Company35.00 %35.00 %
HMC Polymers Company Ltd. 28.56 %28.56 %
Al-Waha Petrochemicals Ltd. 25.00 %25.00 %
Saudi Ethylene & Polyethylene Company Ltd. 25.00 %25.00 %
Saudi Polyolefins Company25.00 %25.00 %
Intermediates and Derivatives
U.S. PO Joint Venture60.62 %60.62 %
European PO JV50.00 %50.00 %
Ningbo ZRCC Lyondell Chemical Co. Ltd. 26.65 %26.65 %
The following table summarizes changes in our equity investments:
Year Ended December 31,
Millions of dollars20252024
Beginning balance$4,121 $3,907 
Capital contributions25 113 
Loss from equity investments(12)(217)
Acquisition of equity investments14 551 
Distribution of earnings, net of tax(92)(122)
Depreciation of PO Joint Ventures and Louisiana Joint Venture(125)(118)
Impairments(4)(13)
Currency exchange effects46 (26)
Other(10)46 
Ending balance$3,963 $4,121 
Capital contributions in 2025 and 2024 include $4 million and $84 million, respectively, related to our PO Joint Ventures.
Closure of European PO Joint Venture—In March 2025, we announced the permanent closure of our European PO Joint Venture. We will carry out a process to safely shut down and prepare for the demolition of the asset. We estimate our portion of the total shutdown costs will be approximately $215 million and will be incurred through 2027. We incurred shutdown costs of $126 million during the year ended December 31, 2025. These costs are included in Cost of Sales in the Consolidated Statements of Income (Loss).
Acquisition of Joint Venture Interest—In May 2024, we acquired a 35% interest in Saudi Arabia-based National Petrochemical Industrial Company from Alujain Corporation for approximately $500 million. The joint venture currently has the capacity to produce 400 thousand tons of polypropylene per year. We market the majority of the off-take through our global sales team. The joint venture is included in our O&P-EAI segment and accounted for using the equity method of accounting.
Impairments—During the fourth quarter of 2023, we recognized a non-cash impairment charge of $192 million related to our European PO Joint Venture due to a trend of negative financial performance and the unfavorable long-term economic outlook for the joint venture. The fair value of our investment was determined using an income approach and the significant inputs used in our fair value determination, including projected cash flows and the discount rate, are considered Level 3. This charge is reflected as Other impairments in the Consolidated Statements of Income (Loss).
Summarized balance sheet information of our investments accounted for under the equity method (presented on a 100% basis) at December 31 is as follows:
Millions of dollars20252024
Current assets$2,826 $3,230 
Noncurrent assets8,553 8,517 
Total assets11,379 11,747 
Current liabilities1,549 1,637 
Noncurrent liabilities1,414 1,064 
Net assets$8,416 $9,046 
As of December 31, 2025 and 2024, the carrying value of our equity method investments exceeded the underlying net assets of our investees by $554 million and $557 million, respectively. Amortization of the basis difference is included in Loss from equity investments and is not material.
Summarized income statement information of our investments accounted for under the equity method (presented on a 100% basis) is as follows:
 Year Ended December 31,
Millions of dollars202520242023
Revenues$8,862 $13,113 $12,540 
Cost of sales(8,534)(12,669)(12,044)
Gross profit328 444 496 
Net operating expenses(856)(614)(514)
Operating loss(528)(170)(18)
Interest income24 26 23 
Interest expense(53)(148)(131)
Foreign currency translation(17)(1)
Other expense, net(5)(3)(23)
Loss before income taxes(559)(312)(150)
(Provision for) benefit from income taxes(61)(252)22 
Net loss$(620)$(564)$(128)
v3.25.4
Prepaid Expenses, Other Current Assets and Other Assets
12 Months Ended
Dec. 31, 2025
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Prepaid Expenses, Other Current Assets and Other Assets Prepaid Expenses, Other Current Assets and Other Assets
The components of Prepaid expenses and other current assets were as follows at December 31:
Millions of dollars20252024
Income tax receivable$181 $79 
VAT receivables116 179 
Advances to suppliers71 83 
Financial derivatives40 210 
Prepaid insurance31 36 
Renewable identification numbers— 127 
Other173 214 
Total prepaid expenses and other current assets$612 $928 
The components of Other assets were as follows at December 31:
Millions of dollars20252024
Income tax receivable$228 $142 
Deferred tax assets212 259 
Pension assets74 56 
Company-owned life insurance46 46 
Financial derivatives75 
Other103 110 
Total other assets$667 $688 
v3.25.4
Accrued and Other Current Liabilities
12 Months Ended
Dec. 31, 2025
Payables and Accruals [Abstract]  
Accrued and Other Current Liabilities Accrued and Other Current Liabilities
Accrued and other current liabilities consisted of the following components at December 31:
Millions of dollars20252024
Payroll and benefits$414 $517 
Operating lease liabilities370 355 
Taxes other than income taxes183 199 
Income taxes145 311 
Interest144 127 
Financial derivatives122 71 
Product sales rebates115 132 
Contract liabilities113 110 
Asset retirement obligations54 113 
Renewable identification numbers— 132 
Other296 289 
Total accrued and other current liabilities$1,956 $2,356 
v3.25.4
Debt
12 Months Ended
Dec. 31, 2025
Debt Disclosure [Abstract]  
Debt Debt
Long-term loans, notes and other debt, net of unamortized discount, debt issuance cost and cumulative fair value hedging adjustments, consisted of the following at December 31:
Millions of dollars20252024
Senior Notes due 2055, $1,000 million, 4.625% ($15 million of discount; $10 million of debt issuance cost)
$975 $975 
Guaranteed Notes due 2027, $300 million, 8.1%
300 300 
Issued by LYB International Finance B.V.:
Guaranteed Notes due 2043, $750 million, 5.25% ($17 million of discount; $6 million of debt issuance cost)
727 726 
Guaranteed Notes due 2044, $1,000 million, 4.875% ($9 million of discount; $8 million of debt issuance cost)
983 983 
Issued by LYB International Finance II B.V.:
Guaranteed Notes due 2026, €500 million, 0.875%
585 515 
Guaranteed Notes due 2027, $1,000 million, 3.5% ($1 million of discount; $1 million of debt issuance cost)
590 584 
Guaranteed Notes due 2031, €500 million, 1.625% ($3 million of discount; $2 million of debt issuance cost)
577 514 
Issued by LYB International Finance III, LLC:
Guaranteed Notes due 2025, $500 million, 1.25%
— 487 
Guaranteed Notes due 2030, $500 million, 3.375% ($1 million of debt issuance cost)
142 123 
Guaranteed Notes due 2030, $500 million, 2.25% ($2 million of discount; $2 million of debt issuance cost)
481 473 
Guaranteed Notes due 2031, $500 million, 5.125% ($1 million of discount; $4 million of debt issuance cost)
495 — 
Guaranteed Notes due 2033, $500 million, 5.625% ($4 million of debt issuance cost)
496 495 
Guaranteed Notes due 2034, $750 million, 5.5% ($5 million of discount, $6 million of debt issuance cost)
739 738 
Guaranteed Notes due 2035, $500 million, 6.15% ($1 million of discount, $5 million of debt issuance cost)
494 — 
Guaranteed Notes due 2036, $1,000 million, 5.875% ($7 million of discount, $9 million of debt issuance cost)
984 — 
Guaranteed Notes due 2040, $750 million, 3.375% ($1 million of discount; $6 million of debt issuance cost)
743 742 
Guaranteed Notes due 2049, $1,000 million, 4.2% ($13 million of discount; $10 million of debt issuance cost)
977 976 
Guaranteed Notes due 2050, $1,000 million, 4.2% ($6 million of discount; $10 million of debt issuance cost)
971 982 
Guaranteed Notes due 2051, $1,000 million, 3.625% ($2 million of discount; $9 million of debt issuance cost)
952 918 
Guaranteed Notes due 2060, $500 million, 3.8% ($4 million of discount; $5 million of debt issuance cost)
487 482 
Other14 17 
Total12,712 11,030 
Less current maturities(588 )(498 )
Long-term debt$12,124 $10,532 
Fair value hedging adjustments associated with the fair value hedge accounting of our fixed-for-floating interest rate swaps for the applicable periods are as follows:
Millions of dollarsGains (Losses)Cumulative Fair Value Hedging Adjustments Included in Carrying Amount of Debt
Year Ended December 31,December 31,
2025202420252024
Guaranteed Notes due 2025, 1.25%
$(4)$(5)$— $
Guaranteed Notes due 2026, 0.875%
(2)(4)
Guaranteed Notes due 2027, 3.5%
(5)— 
Guaranteed Notes due 2030, 3.375%
(20)(2)18 
Guaranteed Notes due 2030, 2.25%
(7)14 21 
Guaranteed Notes due 2031, 1.625%
(2)
Guaranteed Notes due 2050, 4.2%
11 (7)13 
Guaranteed Notes due 2051, 3.625%
(33)(2)37 70 
Guaranteed Notes due 2060, 3.8%
(5)
Total$(61)$(13)$73 $134 
Fair value adjustments are recognized in Interest expense in the Consolidated Statements of Income (Loss).
Aggregate maturities of debt during the next five years are $816 million in 2026, which includes $587 million that remains outstanding under our 0.875% Guaranteed Notes due 2026, $893 million in 2027, $2 million in 2028, $2 million in 2029, $644 million in 2030 and $10,842 million thereafter. We may repay maturing debt using cash and cash equivalents, cash from operating activities, proceeds from the issuance of debt or other sources of cash.
Long-Term Debt
Senior Revolving Credit Facility—Our $3,750 million senior unsecured revolving credit facility (the “Senior Revolving Credit Facility”), which expires in July 2029, may be used for dollar and euro denominated borrowings. The facility also supports our commercial paper program, has a $200 million sub-limit for dollar and euro denominated letters of credit and a $1,000 million uncommitted accordion feature. Borrowings under the facility bear interest at either a base rate, secured overnight financing rate or EURIBOR rate, plus an applicable margin. Additional fees are incurred for the average daily unused commitments. At December 31, 2025, we had no borrowings or letters of credit outstanding and $3,750 million of unused availability under this facility.
The facility contains customary covenants and warranties, including specified restrictions on indebtedness and liens. Additionally, we are required to maintain a maximum leverage ratio (calculated as the ratio of total net funded debt to consolidated earnings before interest, taxes and depreciation and amortization, both as defined in the Amended and Restated Credit Agreement) financial covenant. In the event an acquisition meeting certain thresholds is consummated we can elect to increase the maximum leverage ratio for each of the first six fiscal quarters ending after such acquisition as indicated in the Amended and Restated Credit Agreement.
In September 2025, we amended the Senior Revolving Credit Facility primarily to increase the maximum leverage ratio through 2027 unless we elect to terminate such provisions sooner. The maximum leverage ratio is as follows:
4.25 to 1.00 for the fiscal quarters ending September 30, 2025 and December 31, 2025;
4.50 to 1.00 for the fiscal quarters ending March 31, 2026 through June 30, 2027;
4.25 to 1.00 for the fiscal quarter ending September 30, 2027;
4.00 to 1.00 for the fiscal quarter ending December 31, 2027; and
3.50 to 1.00 thereafter.
Included in the amendment are certain limitations, including restrictions on dividend increases, if our leverage ratio is greater than or equal to 4.00 to 1.00, and share repurchases except to offset dilution.
Covenants and Provisions—Our $300 million 8.1% guaranteed notes due 2027, which are guaranteed by LyondellBasell Industries Holdings B.V., a wholly owned subsidiary of LyondellBasell Industries N.V., contain certain restrictions with respect to the level of maximum debt that can be incurred and security that can be granted by certain operating companies that are direct or indirect wholly owned subsidiaries of LyondellBasell Industries Holdings B.V. These notes contain customary provisions for default, including, among others, the non-payment of principal and interest, certain failures to perform or observe obligations under the Agreement on the notes, the occurrence of certain defaults under other indebtedness, failure to pay certain indebtedness and the insolvency or bankruptcy of certain LyondellBasell Industries N.V. subsidiaries.
The indentures governing all other notes contain limited covenants, including those restricting our ability and the ability of our subsidiaries to incur indebtedness secured by significant property or by capital stock of subsidiaries that own significant property, enter into certain sale and lease-back transactions with respect to any significant property or enter into consolidations, mergers or sales of all or substantially all of our assets.
We may redeem some of our notes at any time in whole, or from time to time in part, prior to their scheduled maturity dates, at a redemption price equal to the greater of (i) 100% of the principal amount of the notes redeemed and (ii) the sum of the present values of the remaining scheduled payments of principal and interest (discounted at the applicable treasury yield or comparable government bond rate plus their respective basis points) on the notes to be redeemed. Some of our notes may also be redeemed prior to their respective maturity dates, at a redemption price equal to 100% of the principal amount of the notes redeemed plus accrued and unpaid interest. Certain notes are also redeemable upon certain tax events.
As of December 31, 2025, we are in compliance with our debt covenants.
Guaranteed Notes due 2031 and 2036—In November 2025, LYB International Finance III, LLC (“LYB Finance III”), a wholly owned finance subsidiary of LyondellBasell Industries N.V., issued $500 million of 5.125% guaranteed notes due 2031 (the “2031 Notes”) at a discounted price of 99.8%, and $1,000 million of 5.875% guaranteed notes due 2036 (the “2036 Notes”) at a discounted price of 99.3%. After deducting original issuance discounts, underwriting fees and offering expenses, the combined net proceeds amounted to $1,478 million. We intend to use the net proceeds for general corporate purposes, which may include, among other things, the repayment of our guaranteed notes due 2026 and guaranteed notes due 2027.
Guaranteed Notes due 2025—In October 2025, we repaid the outstanding principal on our 1.25% guaranteed notes due 2025 of $492 million.
Guaranteed Notes due 2035—In May 2025, LYB Finance III, a wholly owned finance subsidiary of LyondellBasell Industries N.V., issued $500 million of 6.150% guaranteed notes due 2035 (the “2035 Notes”) at a discounted price of 99.7%. After deducting original issuance discounts, underwriting fees and offering expenses, the net proceeds amounted to $494 million. We used the net proceeds for general corporate purposes, which included, among other things, the repayment of our guaranteed notes due 2025.
Guaranteed Notes due 2034—In February 2024, LYB Finance III, a wholly owned finance subsidiary of LyondellBasell Industries N.V., issued $750 million of 5.5% guaranteed notes due 2034 (the “2034 Notes”) at a discounted price of 99.2%. Net proceeds after deducting original issuance discounts, underwriting fees and offering expenses totaled $737 million. We used the net proceeds to repay our 5.75% senior notes due 2024.
Senior Notes due 2024—In March 2024, we repaid the $775 million remaining outstanding principal of our 5.75% senior notes due 2024.
Short-Term Debt
U.S. Receivables Facility—Our U.S. Receivables Facility has a purchase limit of $900 million in addition to a $300 million uncommitted accordion feature. In May 2025, we extended the term of the facility to June 2026. This facility provides liquidity through the sale or contribution of trade receivables by certain of our U.S. subsidiaries to a wholly owned, bankruptcy-remote subsidiary on an ongoing basis and without recourse. The bankruptcy-remote subsidiary may then, at its option and subject to a borrowing base of eligible receivables, sell undivided interests in the pool of trade receivables to financial institutions participating in the facility (“Purchasers”). The sale of the undivided interest in the pool of trade receivables is accounted for as a secured borrowing in the Consolidated Balance Sheets. We are responsible for servicing the receivables. We pay variable interest rates on our secured borrowings. Additional fees are incurred for the average daily unused commitments. In the event of liquidation, the bankruptcy-remote subsidiary’s assets will be used to satisfy the claims of the Purchasers prior to any assets or value in the bankruptcy-remote subsidiary becoming available to us. This facility also provides for the issuance of letters of credit up to $200 million. Performance obligations under the facility are guaranteed by LyondellBasell Industries N.V. The term of the facility may be extended in accordance with the terms of the agreement. The facility is also subject to customary warranties and covenants, including limits and reserves and the maintenance of specified financial ratios. Under the terms of the U.S. Receivable Facility, we are required to maintain a maximum leverage ratio consistent with the terms of the Senior Revolving Credit Facility as discussed above. In September 2025, the modification to the maximum leverage ratio for the Senior Revolving Credit Facility was incorporated into the U.S. Receivables Facility. At December 31, 2025, there were no borrowings or letters of credit outstanding and $900 million unused availability under the facility.
Commercial Paper Program—We have a commercial paper program under which we may issue up to $2,500 million of privately placed, unsecured, short-term promissory notes (“commercial paper”). This program is backed by our $3,750 million Senior Revolving Credit Facility. Proceeds from the issuance of commercial paper may be used for general corporate purposes, including dividends and share repurchases. At December 31, 2025, we had no outstanding borrowings of commercial paper.
Precious Metal Financings—We enter into lease agreements for precious metals which are used in our production processes. Precious metal borrowings are classified as Short-term debt or Long-term debt, other, based on the maturities of the lease agreements. At December 31, 2025 and 2024, we had $226 million and $119 million, respectively, of Short-term debt related to our precious metal financings.
Weighted Average Interest Rate—At December 31, 2025 and 2024, our weighted average interest rate on outstanding Short-term debt was 2.7% and 1.1%, respectively.
Additional Information
Debt Discount and Issuance Costs—Amortization of debt discount and debt issuance costs resulted in amortization expense of $11 million, $11 million and $9 million for the years ended December 31, 2025, 2024 and 2023, respectively, which is included in Interest expense in the Consolidated Statements of Income (Loss).
Other Information—LYB International Finance B.V., LYB International Finance II B.V., and LYB International Finance III, LLC (“LYB Finance subsidiaries”) are wholly owned finance subsidiaries of LyondellBasell Industries N.V. Any debt securities issued by LYB Finance subsidiaries will be fully and unconditionally guaranteed by LyondellBasell Industries N.V., and no other subsidiaries of LyondellBasell Industries N.V. guarantees these securities. Our unsecured notes rank equally in right of payment to each respective finance subsidiary’s existing and future unsecured indebtedness and to all of LyondellBasell Industries N.V.’s existing and future unsubordinated indebtedness. There are no significant restrictions that would impede LyondellBasell Industries N.V., as guarantor, from obtaining funds by dividend or loan from its subsidiaries.
v3.25.4
Leases
12 Months Ended
Dec. 31, 2025
Leases [Abstract]  
Leases Leases
Operating Leases—The majority of our leases are operating leases. We lease storage tanks, terminal facilities, land, office facilities, railcars, pipelines, barges, plant equipment and other equipment. As of December 31, 2025 and 2024, our Operating lease assets were $1,514 million and $1,467 million, respectively. As of December 31, 2025 and 2024, Operating lease liabilities totaled $1,697 million and $1,774 million of which $370 million and $355 million, respectively, are current and recorded in Accrued and other current liabilities. These values were derived using a weighted average discount rate of 4.2% and 4.1% as of December 31, 2025 and 2024, respectively.
Substantially all of our operating leases have remaining lease terms of 21 years or less and have a weighted-average remaining lease term of 9 years. Certain lease agreements include options to renew the lease, at our discretion, for approximately 1 year to 20 years and do not materially impact our operating lease assets or operating lease liabilities.
Maturities of operating lease liabilities as of December 31, 2025, are as follows:
Millions of dollars
2026$418 
2027335 
2028240 
2029157 
2030129 
Thereafter797 
Total lease payments2,076 
Less: Imputed interest(379)
Present value of lease liabilities$1,697 
Operating lease costs were $440 million, $395 million and $368 million for the years ended December 31, 2025, 2024 and 2023, respectively, which are reflected in the Consolidated Statements of Income.
Cash paid for amounts included in the measurement of Operating lease liabilities totaled $458 million, $454 million and $447 million for the years ended December 31, 2025, 2024 and 2023, respectively. Leased assets obtained in exchange for new operating lease liabilities totaled $332 million, $383 million and $312 million for the years ended December 31, 2025, 2024 and 2023, respectively.
As of December 31, 2025, we have entered into operating leases, with an undiscounted value of $45 million, that have not yet commenced. These leases which will commence in 2026 have lease terms ranging from 5 to 7 years.
v3.25.4
Financial Instruments and Fair Value Measurements
12 Months Ended
Dec. 31, 2025
Financial Instruments and Fair Value Measurements [Abstract]  
Financial Instruments and Fair Value Measurements Financial Instruments and Fair Value Measurements
We are exposed to market risks, such as changes in commodity pricing, interest rates and currency exchange rates. To manage the volatility related to these exposures, we selectively enter into derivative contracts pursuant to our risk management policies.
Financial Instruments Measured at Fair Value on a Recurring Basis—The following table summarizes financial instruments outstanding for the periods presented that are measured at fair value on a recurring basis:
Fair Value
Millions of dollarsDecember 31, 2025December 31, 2024Balance Sheet Classification
Assets—
Derivatives designated as hedges:
Commodities$— $14 Prepaid expenses and other current assets
CommoditiesOther assets
Foreign currency19 146 Prepaid expenses and other current assets
Foreign currency— 66 Other assets
Interest rates16 16 Prepaid expenses and other current assets
Derivatives not designated as hedges:
Commodities18 Prepaid expenses and other current assets
Commodities— Other assets
Foreign currency— 16 Prepaid expenses and other current assets
Total$44 $285 
Liabilities—
Derivatives designated as hedges:
Commodities$33 $14 Accrued and other current liabilities
CommoditiesOther liabilities
Foreign currency15 Accrued and other current liabilities
Foreign currency199 — Other liabilities
Interest rates27 36 Accrued and other current liabilities
Interest rates79 146 Other liabilities
Derivatives not designated as hedges:
Commodities42 11 Accrued and other current liabilities
Foreign currencyAccrued and other current liabilities
Total$408 $222 
The financial instruments in the table above are classified as Level 2. We present the gross assets and liabilities of our derivative instruments on the Consolidated Balance Sheets.
Financial Instruments Not Measured at Fair Value on a Recurring Basis—The following table presents the carrying value and estimated fair value of our Short-term precious metal financings and Long-term debt:
 December 31, 2025December 31, 2024
 Carrying
Value
Fair
Value
Carrying
Value
Fair
Value
Millions of dollars
Precious metal financings$226 $263 $119 $122 
Long-term debt12,113 10,501 10,521 9,048 
Total$12,339 $10,764 $10,640 $9,170 
The financial instruments in the table above are classified as Level 2. Our other financial instruments classified within Current assets and Current liabilities have a short maturity and their carrying value generally approximates fair value.
Derivative Instruments:
Commodity Prices—We are exposed to commodity price volatility related to purchases of various feedstocks and sales of our products. We use over-the-counter commodity swaps, options and exchange traded futures contracts to manage these risks, including through cash flow hedging relationships.
The following table presents the notional amounts of our outstanding commodity derivative instruments:
Notional Amount
Millions of unitsDecember 31, 2025December 31, 2024Unit of MeasureMaturity Date
Derivatives designated as hedges:
Natural gas51 62 MMBtu
2026 to 2028
Ethane13 14 Bbl2026 to 2028
Power— MWhs
2026 to 2028
Derivatives not designated as hedges:
Ethane— Bbl2026
Other commoditiesBbl2026
Interest Rates—We are exposed to interest rate risk with respect to our fixed-rate and variable-rate debt. Fluctuations in interest rates impact the fair value of fixed-rate debt and expose us to the risk that we may need to refinance debt at higher rates. We use interest rate swaps that are designated as fair value hedges to mitigate the changes in the fair value of our fixed-rate debt by effectively converting it to variable-rate debt. See Note 13 to the Consolidated Financial Statements for additional information.
The following table presents the notional amounts of our outstanding interest rate derivative instruments:
Notional Amount
Millions of dollarsDecember 31, 2025December 31, 2024Maturity Date
Fair value hedges$1,885 $2,158 2026to2031
Foreign Currency Rates—We have significant worldwide operations. The functional currencies of our operating subsidiaries are primarily the U.S. dollar and the euro. We enter into transactions denominated in currencies other than our designated functional currencies that create foreign currency exposure. We enter into foreign currency contracts to economically hedge foreign currency risk related to recognized foreign currency monetary assets and liabilities. Changes in the fair value of such forward and swap contracts are reported in the Consolidated Statements of Income (Loss) and offset, in part, currency remeasurement results. Other income (expense), net, in the Consolidated Statements of Income (Loss), reflected foreign currency gains of $6 million and $15 million and losses of $34 million in 2025, 2024 and 2023, respectively.
We enter into foreign currency contracts that are designated as net investment hedges to manage the impacts of foreign currency translation of our net investments in foreign operations. We also enter into foreign currency contracts that are designated as cash flow hedges to manage the variability in cash flows associated with intercompany debt balances.
The following table presents the notional amounts of our outstanding foreign currency derivative instruments:
Notional Amount
Millions of dollarsDecember 31, 2025December 31, 2024Maturity Date
Net investment hedges$2,465 $3,256 2027to2032
Cash flow hedges294 300 2027
Not designated295 772 2026
Other Financial Instruments:
Cash and Cash Equivalents—At December 31, 2025 and 2024, we had marketable securities classified as Cash and cash equivalents of $2,030 million and $2,610 million, respectively.
Impact on Earnings and Other Comprehensive Income (Loss)—The following tables summarize the pre-tax effect of derivative instruments recorded in Accumulated other comprehensive income (“AOCI”), the gains (losses) reclassified from AOCI to earnings and additional gains (losses) recognized directly in earnings:
 Effect of Financial Instruments
 Year Ended December 31, 2025
Balance SheetIncome Statement
Millions of dollarsGain (Loss)
Recognized
in AOCI
Gain (Loss)
Reclassified from AOCI to Income
Additional
Gain (Loss)
Recognized
in Income
Income Statement
Classification
Derivatives designated as hedges:
Commodities$(60)$22 $— Cost of sales
Foreign currency(384)36 45 Interest expense
Interest rates— 13 Interest expense
Derivatives not designated as hedges:
Commodities— — (44)Cost of sales
Commodities— — Income (loss) from discontinued operations, net of tax
Foreign currency— — (78)Other income (expense), net
Total$(444)$62 $(56)
 Year Ended December 31, 2024
Balance SheetIncome Statement
Millions of dollarsGain (Loss)
Recognized
in AOCI
Gain (Loss)
Reclassified from AOCI to Income
Additional
Gain (Loss)
Recognized
in Income
Income Statement
Classification
Derivatives designated as hedges:
Commodities$(2)$$— Sales and other operating revenues
Commodities11 129 — Cost of sales
Foreign currency206 (35)59 Interest expense
Interest rates11 (64)Interest expense
Derivatives not designated as hedges:
Commodities— — (2)Sales and other operating revenues
Commodities— — 23 Cost of sales
Commodities— — 11 Income (loss) from discontinued operations, net of tax
Foreign currency— — 43 Other income (expense), net
Total$226 $102 $70 
 Year Ended December 31, 2023
Balance SheetIncome Statement
Millions of dollarsGain (Loss)
Recognized
in AOCI
Gain (Loss)
Reclassified from AOCI to Income
Additional
Gain (Loss)
Recognized
in Income
Income Statement
Classification
Derivatives designated as hedges:
Commodities$(2)$— $— Sales and other operating revenues
Commodities(157)33 — Cost of sales
Foreign currency(142)31 70 Interest expense
Interest rates17 (20)Interest expense
Derivatives not designated as hedges:
Commodities— — Sales and other operating revenues
Commodities— — Cost of sales
Commodities— — 52 Income (loss) from discontinued operations, net of tax
Foreign currency— — (29)Other income (expense), net
Total$(284)$69 $79 
Amounts excluded from the assessment of effectiveness for foreign currency contracts designated as net investment hedges recognized in other comprehensive income (loss) or Interest expense for the years ended December 31, 2025, 2024 and 2023 were immaterial.
As of December 31, 2025, on a pre-tax basis, $5 million is scheduled to be reclassified from AOCI as an increase to Interest expense over the next twelve months.
v3.25.4
Pension and Other Post-retirement Benefits
12 Months Ended
Dec. 31, 2025
Retirement Benefits [Abstract]  
Pension and Other Post-retirement Benefits Pension and Other Post-retirement Benefits
We have defined benefit pension plans which cover employees in the U.S. and various other countries. We also sponsor post-retirement benefit plans other than pensions that provide medical benefits to certain of our U.S., Canadian and French employees. In addition, we provide other post-employment benefits such as early retirement and deferred compensation severance benefits to employees in certain non-U.S. countries. We use a measurement date of December 31 for all of our benefit plans.
Pension Benefits—The following tables provide a reconciliation of projected benefit obligations, plan assets and the funded status of our U.S. and non-U.S. defined benefit pension plans:
 Year Ended December 31,
 20252024
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.
Change in benefit obligation:
Benefit obligation, beginning of period$1,232 $1,389 $1,155 $1,363 
Service cost54 25 52 21 
Interest cost59 54 62 52 
Actuarial (gain) loss(13)(141)60 88 
Plan amendments(5)— — 
Benefits paid(128)(71)(97)(59)
Participant contributions— — 
Settlement(43)(3)— (3)
Curtailment— — — 
Termination benefits— — — 
Foreign exchange effects— 159 — (75)
Benefit obligation, end of period1,168 1,415 1,232 1,389 
Change in plan assets:
Fair value of plan assets, beginning of period1,036 770 960 705 
Actual return on plan assets49 (52)130 112 
Company contributions20 59 43 51 
Benefits paid(128)(71)(97)(59)
Participant contributions— — 
Settlement(43)(3)— (3)
Foreign exchange effects— 81 — (38)
Fair value of plan assets, end of period934 786 1,036 770 
Funded status, end of period$(234)$(629)$(196)$(619)
Amounts recognized in the Consolidated Balance Sheets consist of the following:
 December 31, 2025December 31, 2024
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.
Prepaid benefit cost, long-term$— $74 $— $56 
Accrued benefit liability, current— (37)— (30)
Accrued benefit liability, long-term(234)(666)(196)(645)
Funded status, end of period$(234)$(629)$(196)$(619)
Amounts recognized in Accumulated other comprehensive loss include the following:
 December 31, 2025December 31, 2024
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.
Actuarial and investment loss$278 $70 $276 $94 
Prior service (credit) cost(4)23 — 23 
Balance, end of period$274 $93 $276 $117 
The following additional information is presented for our U.S. and non-U.S. pension plans:
 December 31, 2025December 31, 2024
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.
Accumulated benefit obligation for defined benefit plans$1,150 $1,298 $1,204 $1,268 
Pension plans with projected benefit obligations in excess of the fair value of assets are summarized as follows:
 December 31, 2025December 31, 2024
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.
Projected benefit obligations$1,168 $820 $1,232 $793 
Fair value of assets934 117 1,036 118 
Pension plans with accumulated benefit obligations in excess of the fair value of assets are summarized as follows:
 December 31, 2025December 31, 2024
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.
Accumulated benefit obligations$1,150 $621 $1,201 $593 
Fair value of assets934 1,033 
Components of net periodic pension costs for our U.S. and non-U.S. plans are as follows:
 U.S. Plans
 Year Ended December 31,
Millions of dollars202520242023
Service cost$49 $47 $45 
Interest cost52 55 50 
Expected return on plan assets(63)(58)(62)
Actuarial loss amortization16 19 17 
Net periodic benefit cost$54 $63 $50 
 Non-U.S. Plans
 Year Ended December 31,
Millions of dollars202520242023
Service cost$25 $21 $22 
Interest cost54 52 51 
Expected return on plan assets(28)(28)(28)
Prior service cost amortization
Actuarial (gain) loss amortization(1)
Net periodic benefit cost$59 $53 $47 
The actual and target asset allocations for our plans are as follows:
 20252024
ActualTargetActualTarget
Canada
Fixed incomeN/AN/A100 %100 %
United Kingdom—Lyondell Chemical Plans
Equity securities26 %25 %25 %25 %
Fixed income74 %75 %75 %75 %
United Kingdom—Basell Plans
Equity securities27 %25 %25 %25 %
Fixed income73 %75 %75 %75 %
United Kingdom—A. Schulman Plans
Equity securities and growth assets27 %25 %26 %25 %
Fixed income and matching assets73 %75 %74 %75 %
United States
Equity securities41 %40 %39 %40 %
Fixed income47 %45 %48 %45 %
Alternatives12 %15 %13 %15 %
During 2025, the Canadian Defined Benefits pension plans entered into an annuity buy-in. As a result, the plan assets of $65 million were transferred to the insurer and treated as a nonparticipating insurance contract.
We estimate contributions to our defined benefit plans in 2026 will be $80 million and $63 million for the U.S. and non-U.S. plans, respectively.
As of December 31, 2025, future expected benefit payments by our pension plans which reflect expected future service, as appropriate, are as follows:
Millions of dollarsU.S.Non-U.S.
2026$127 $73 
202793 73 
202897 75 
202996 77 
203095 79 
2031 through 2035490 414 
The following tables set forth the principal assumptions on discount rates, projected rates of compensation increase and expected rates of return on plan assets, where applicable. These assumptions vary for the different plans, as they are determined in consideration of local conditions.
The weighted average assumptions used in determining the net benefit liabilities for our pension plans were as follows at December 31:
 20252024
 U.S.Non-U.S.U.S.Non-U.S.
Discount rate5.43 %4.37 %5.35 %3.66 %
Rate of compensation increase4.66 %3.37 %4.66 %3.36 %
Cash balance interest credit rate4.67 %— %4.36 %— %
The weighted average assumptions used in determining net benefit costs for our pension plans were as follows:
 Year Ended December 31,
 202520242023
 U.S.Non-U.S.U.S.Non-U.S.U.S.Non-U.S.
Discount rate5.35 %3.66 %5.80 %4.00 %5.50 %3.99 %
Expected return on plan assets7.25 %3.44 %7.25 %4.14 %7.25 %3.57 %
Rate of compensation increase4.66 %3.36 %4.68 %3.58 %4.65 %2.66 %
The discount rate assumptions reflect the rates at which the benefit obligations could be effectively settled, based on the yields of high-quality long-term bonds where the term closely matches the term of the benefit obligations. We measure service and interest costs by applying the specific spot rates along that same yield curve to the projected cash flows of the plans. This approach provides a more precise measurement of service and interest costs. The weighted average expected long-term rate of return on assets in our U.S. plans of 7.25% is based on the average level of earnings that our independent pension investment adviser had advised could be expected to be earned over a fifteen- to twenty-year time period, consistent with the target asset allocation of the plans, historical capital market performance, historical plan performance (since the 1997 inception of the U.S. Master Trust) and a forecast of expected future asset returns. The weighted average expected long-term rate of return on assets in our non-U.S. plans of 3.44% is based on expectations and asset allocations that vary by region. We review these long-term assumptions on a periodic basis.
Actual rates of return may differ from the expected rate due to the volatility normally experienced in capital markets. Assets are externally managed by professional investment firms over the long term to achieve optimal returns with an acceptable level of risk and volatility in order to meet the benefit obligations of the plans as they come due.
Our pension plans have not directly invested in securities of LyondellBasell N.V., and there have been no significant transactions between any of the pension plans and the Company or related parties thereof.
The pension investments that are measured at fair value are summarized below:
 December 31, 2025
Millions of dollarsFair ValueLevel 1Level 2Level 3
U.S.
Common and preferred stock$59 $59 $— $— 
Commingled funds measured at net asset value432 
Fixed income securities97 — 97 — 
Real estate funds measured at net asset value57 
Hedge funds measured at net asset value15 
Private equity measured at net asset value39 
U.S. government securities217 217 — — 
Cash and cash equivalents17 17 — — 
Total U.S. Pension Assets$933 $293 $97 $— 
 December 31, 2025
Millions of dollarsFair ValueLevel 1Level 2Level 3
Non-U.S.
Insurance arrangements$610 $— $— $610 
Commingled funds measured at net asset value172 
Cash and cash equivalents— — 
Total Non-U.S. Pension Assets$783 $$— $610 
 December 31, 2024
Millions of dollarsFair ValueLevel 1Level 2Level 3
U.S.
Common and preferred stock$64 $64 $— $— 
Commingled funds measured at net asset value459 
Fixed income securities97 — 97 — 
Real estate funds measured at net asset value63 
Hedge funds measured at net asset value20 
Private equity measured at net asset value46 
U.S. government securities253 253 — — 
Cash and cash equivalents26 26 — — 
Total U.S. Pension Assets$1,028 $343 $97 $— 
 December 31, 2024
Millions of dollarsFair ValueLevel 1Level 2Level 3
Non-U.S.
Insurance arrangements$531 $— $— $531 
Commingled funds measured at net asset value237 
Cash and cash equivalents— — 
Total Non-U.S. Pension Assets$769 $$— $531 
Certain non-U.S. plans have investments in a pooled asset portfolio that are treated as a nonparticipating insurance contract. The associated plan assets underlying the insurance arrangement are measured at the cash surrender value, which is primarily derived from an actuarial determination of the discounted benefits cash flows. As such, these assets are considered to use significant unobservable inputs (Level 3). As of December 31, 2024, these defined benefit pension plan assets were valued at $531 million and have increased to $610 million as of December 31, 2025. This change is primarily due to the transfer of the Canadian plan assets of $65 million into an insurance arrangement and in relation to the increase in the discount rate from 2024 to 2025.
The majority of our U.S. and Non-U.S investments that are calculated at net asset values have a redemption frequency, redemption period and trade settlement term of less than one-week.
Other Post-retirement Benefits—We sponsor unfunded health care and life insurance plans covering certain eligible retired employees and their eligible dependents. Generally, the medical plans pay a stated percentage of medical expenses, reduced by deductibles and other coverage. Life insurance benefits are generally provided by insurance contracts. We retain the right, subject to existing agreements, to modify or eliminate these benefits.
The following tables provide a reconciliation of benefit obligations of our unfunded other post-retirement benefit plans:
 Year Ended December 31,
 20252024
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.
Change in benefit obligation:
Benefit obligation, beginning of period$139 $52 $142 $39 
Service cost— — 
Interest cost
Actuarial (gain) loss (5)15 
Benefits paid(22)(2)(24)(1)
Participant contributions— — 
Foreign exchange effects— — (4)
Benefit obligation, end of period134 55 139 52 
Change in plan assets:
Fair value of plan assets, beginning of period— — — — 
Employer contributions18 19 
Participant contributions— — 
Benefits paid(22)(2)(24)(1)
Fair value of plan assets, end of period— — — — 
Funded status, end of period$(134)$(55)$(139)$(52)
Amounts recognized in the Consolidated Balance Sheets are as follows:
 December 31, 2025December 31, 2024
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.
Accrued benefit liability, current$(13)$(2)$(13)$(1)
Accrued benefit liability, long-term(121)(53)(126)(51)
Funded status, end of period$(134)$(55)$(139)$(52)
Amounts recognized in Accumulated other comprehensive loss are as follows:
 December 31, 2025December 31, 2024
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.
Actuarial and investment income$48 $11 $61 $
Prior service cost — (1)— (1)
Balance, end of period$48 $10 $61 $
The following tables set forth the assumed health care cost trend rates for our U.S. and Non-U.S. Plans:
 U.S. Plans
 December 31,
 20252024
Immediate trend rate7.0 %6.5 %
Ultimate trend rate (the rate to which the cost trend rate is assumed to decline)4.5 %4.5 %
Year that the rate reaches the ultimate trend rate20362033
Non-U.S. Plans
CanadaFrance
December 31,December 31,
2025202420252024
Immediate trend rate4.5 %4.5 %5.0 %5.0 %
Ultimate trend rate (the rate to which the cost trend rate is assumed to decline)4.5 %4.5 %5.0 %5.0 %
Year that the rate reaches the ultimate trend rate— — — — 
The health care cost trend rate assumption does not typically have a significant effect on the amounts reported due to limits on maximum contribution levels to the medical plans.
The weighted average assumptions used in determining the net benefit liabilities for our other post-retirement benefit plans were as follows:
 December 31,
 20252024
 U.S.Non-U.S.U.S.Non-U.S.
Discount rate5.08 %4.01 %5.24 %3.53 %
Rate of compensation increase4.12 %— 4.09 %— 
The weighted average assumptions used in determining the net benefit costs for our other post-retirement benefit plans were as follows:
 Year Ended December 31,
 202520242023
 U.S.Non-U.S.U.S.Non-U.S.U.S.Non-U.S.
Discount rate5.24 %3.53 %5.74 %4.36 %5.44 %3.95 %
Rate of compensation increase4.09 %— 4.13 %— 4.16 %— 
As of December 31, 2025, future expected benefit payments by our other post-retirement benefit plans, which reflect expected future service, as appropriate, were as follows:
Millions of dollarsU.S.Non-U.S.
2026$13 $
202713 
202813 
202913 
203012 
2031 through 203553 10 
Accumulated Other Comprehensive Loss—In 2025, pension benefits actuarial gain and other post-retirement benefits actuarial loss of $53 million and $1 million, respectively, are primarily due to changes in discount rate assumptions and updated actuarial assumptions. In 2024, pension benefits actuarial gain and other post-retirement benefits actuarial loss of $1 million and $22 million, respectively, are primarily due to changes in discount rate assumptions and updated actuarial assumptions.
Deferred income taxes related to amounts in Accumulated other comprehensive loss include provisions of $72 million and $91 million as of December 31, 2025 and 2024, respectively.
Defined Contribution Plans—Most employees in the U.S. and certain non-U.S. countries are eligible to participate in defined contribution plans (“Employee Savings Plan”) by contributing a portion of their compensation. We make employer contributions, such as matching contributions, to certain of these plans. The Company also has a nonqualified deferred compensation plan that covers senior management in the U.S. This plan was amended and restated in May 2023 and provides Company contributions on behalf of certain eligible employees who earn base pay above the IRS annual compensation limit.
The following table provides the Company contributions to the Employee Savings Plans:
 Company Contributions
 202520242023
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.U.S.Non-U.S.
Employee Savings Plans$58 $11 $56 $11 $54 $
v3.25.4
Incentive and Share-Based Compensation
12 Months Ended
Dec. 31, 2025
Share-Based Payment Arrangement [Abstract]  
Incentive and Share-Based Compensation Incentive and Share-Based Compensation
We are authorized to grant RSUs, PSUs, stock options, and other cash and stock awards under our Long-Term Incentive Plan (“LTIP”). The Compensation and Talent Development Committee oversees our equity award grants, the type of awards, the required performance measures and the timing and duration of each grant. The maximum number of shares of our common stock reserved for issuance under the LTIP is 30,000,000 shares. After taking into consideration outstanding stock-settled awards and assuming a maximum payout for our PSU awards, there were 4,516,489 shares available for issuance as of December 31, 2025.
Total share-based compensation expense and the associated tax benefits are as follows:
Year Ended December 31,
Millions of dollars202520242023
Compensation Expense:
Restricted stock units$70 $60 $44 
Stock options10 
Performance share units20 27 37 
Total$91 $91 $91 
Tax Benefit:
Restricted stock units$16 $14 $10 
Stock options— 
Performance share units
Total$21 $21 $21 
Restricted Stock Unit Awards—RSUs entitle the recipient to be paid out an equal number of ordinary shares upon vesting. Effective in 2024, RSUs will generally have a three-year vesting period and ratably vest in equal increments on the first, second and third anniversary of the grant date. Prior to 2024, RSUs generally cliff vested on the third anniversary of the grant date.
The fair value of RSUs is based on the market price of the underlying stock on the date of grant. The weighted average grant date fair value for RSUs granted during the years ended December 31, 2025, 2024 and 2023 was $70.49, $95.78 and $93.93, respectively. The total fair value of RSUs vested and issued was $44 million, $45 million and $30 million during 2025, 2024 and 2023, respectively.
The following table summarizes unvested RSU activity:
Number of
Units
 (in thousands)
Weighted Average
 Grant Date Fair Value
(per share)
Outstanding at January 1, 20251,236 $95.09 
Granted897 70.49 
Vested(698)91.76 
Forfeited(93)84.27 
Outstanding at December 31, 20251,342 $81.13 
As of December 31, 2025, the unrecognized compensation cost related to RSUs was $36 million, which is expected to be recognized over a weighted average period of 1.25 years.
Stock Option Awards—Stock options allow employees the opportunity to purchase ordinary shares of stock in the future at an exercise price equal to the market price at the date of grant. No Stock options were granted in 2025 or 2024. Previous awards generally have a three-year vesting period that vests in equal increments on the first, second and third anniversary of the grant date and have a contractual term of ten years. None of the Stock options are designed to qualify as Incentive Stock Options as defined in Section 422 of the Internal Revenue Code.
The fair value of each Stock option is estimated on the date of grant using the Black-Scholes option valuation model. The principal assumptions utilized in valuing Stock options include the expected stock price volatility (based on our historical stock price volatility over the expected term); the expected dividend yield; and the risk-free interest rate (an estimate based on the yield of a United States Treasury zero coupon bond with a maturity equal to the expected term of the option).
The expected term of Stock options granted is estimated based on the weighted average of historical exercise patterns and the midpoint of the remaining expected life.
The weighted average fair value of Stock options granted and the assumptions used in estimating those fair values are as follows:
Year Ended December 31,
2023
Weighted average fair value$24.85
Fair value assumptions:
Dividend yield5.0 %
Expected volatility
39.9-40.2%
Risk-free interest rate
3.5-4.7%
Weighted average expected term, in years5.7
The following table summarizes Stock option activity:
Number of
Shares
(in thousands)
Weighted
Average
Exercise
Price
Weighted
Average
Remaining
Term
Aggregate
Intrinsic
Value
(millions of
dollars)
Outstanding at January 1, 20251,943$91.40 
Forfeited(8)94.46 
Expired(126)98.24 
Outstanding at December 31, 20251,809 $90.91 4.1 years$— 
Exercisable at December 31, 20251,678 $90.62 3.9 years$— 
The aggregate intrinsic value of Stock options exercised during the year ended December 31, 2024 and 2023 was $10 million and $8 million, respectively. No Stock options were exercised in 2025.
Performance Share Units Awards—A target number of PSUs is granted to participants at the beginning of a three-year performance period. Final payout of awards, which can range from 0% to 200% of target shares granted, is determined and paid after the performance period. These awards are settled in shares of common stock, and each unit is equivalent to one share of our common stock.
The payout for PSUs granted will be equally based on Total Shareholder Return (“TSR”) relative to our peers and the Free Cash Flow (“FCF”) performance metric. The fair value of the portion of the award that vests based on TSR is estimated using a Monte-Carlo simulation. For the other portion of the award, the fair value is determined at the end of each reporting period based on our stock price and the number of shares expected to vest.
The weighted average fair value and the assumptions used in estimating those fair value using a Monte-Carlo simulation are as follows:
Year Ended December 31,
 202520242023
Weighted average fair value$98.74 $133.75 $128.95
Fair value assumptions:
Expected volatility of LyondellBasell N.V. common stock25.00 %
28.60%
38.04%
Expected volatility of peer companies
23.85-43.97%
24.68-43.42%
22.82-52.73%
Average correlation coefficient of peer companies0.54
0.56
0.52
Risk-free interest rate4.01%
4.47%
4.39%
The following table summarizes unvested PSU activity:
Number of
Units
 (in thousands)
Weighted Average
 Grant Date Fair Value (per share)
Outstanding at January 1, 2025989 $101.94 
Granted609 71.27 
Vested (258)93.84 
Forfeited(133)86.72 
Outstanding at December 31, 20251,207 $89.87 
The total fair value of PSUs vested during 2025 was $11 million for the TSR component, which paid out at 90% of target shares, and $8 million for the FCF component, which paid out at 68% of target shares. As of December 31, 2025, the unrecognized compensation cost related to PSUs was $32 million, which is expected to be recognized over a weighted average period of 1.8 years.
v3.25.4
Income Taxes
12 Months Ended
Dec. 31, 2025
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
LyondellBasell Industries N.V. is tax resident in the United Kingdom pursuant to a mutual agreement procedure determination ruling between the Dutch and United Kingdom competent authorities and therefore subject solely to the United Kingdom corporate income tax system. LyondellBasell Industries N.V. has little or no taxable income of its own because, as a holding company, it does not conduct any operations. Through our subsidiaries, we have substantial operations world-wide. Taxes are paid on the earnings generated in various jurisdictions where our subsidiaries operate.
The Company operates in multiple jurisdictions with complex legal and tax regulatory environments and is subject to taxes in the U.S. and non-U.S. jurisdictions. We monitor tax law changes and the potential impact to our results of operations. There continues to be increased attention on the tax practices of multinational companies, in particular in the U.S. and Europe where we operate. In 2020, the Organization for Economic Cooperation and Development released Pillar One and Two proposals focused on taxing rights and minimum taxes. The United Kingdom, as well as certain other jurisdictions in which we operate, enacted legislation implementing the Organization for Economic Cooperation and Development’s Pillar Two Model Rules effective as of January 1, 2024. This legislation, and all subsequent guidance, did not have a material impact on the Consolidated Financial Statements; however, we continue to assess and monitor legislative changes, guidance and interpretations.
On July 4, 2025, the One Big Beautiful Bill Act (“OBBBA”) was enacted into law. OBBBA extends and modifies certain key Tax Cuts & Jobs Act provisions. This legislation does not have a material impact on the Consolidated Financial Statements.
The significant components of the provision for income taxes are as follows:
 Year Ended December 31,
Millions of dollars202520242023
Current:
U.S. federal$116 $419 $117 
Non-U.S.145 198 160 
State(7)48 24 
Total current254 665 301 
Deferred:
U.S. federal(205)(140)154 
Non-U.S.11 (279)(36)
State10 13 14 
Total deferred(184)(406)132 
Provision for income taxes before tax effects of other comprehensive income70 259 433 
Tax effects of elements of other comprehensive income:
Pension and post-retirement liabilities19 (1)(36)
Financial derivatives(8)38 (29)
Foreign currency translation(91)44 (28)
Total income tax expense (benefit) in comprehensive income$(10)$340 $340 
Since the proportion of U.S. revenues, assets, operating income and associated tax expense is significantly greater than that of any other single taxing jurisdiction within the worldwide group, the reconciliation of the differences between the provision for income taxes and the statutory rate is presented on the basis of the U.S. statutory federal income tax rate of 21% as opposed to the United Kingdom statutory tax rate of 25% or The Netherlands statutory tax rate of 25.8%. Our effective income tax rate for the year ended December 31, 2025 is (9.8)%.
Our effective income tax rate fluctuates based on, among other factors, changes in pre-tax income in countries with varying statutory tax rates, changes in valuation allowances, changes in foreign exchange gains/losses, the amount of nontaxable income or nondeductible expense, changes in unrecognized tax benefits associated with uncertain tax positions and changes in tax laws.
The following table reconciles the expected tax expense (benefit) at the U.S. statutory federal income tax rate to the total income tax provision disaggregated by nature of reconciling items:
Year Ended December 31,
Millions of dollars2025
Income (loss) from continuing operations before income taxes:
U.S.$(219)
Non-U.S.(496)
Total$(715)
Income tax at U.S. statutory rate$(150)21.0 %
State and local income tax, net of federal income tax effect14 (2.0)%
Effect of cross-border tax laws:
Change in deferred tax on outside basis differences(13)1.8 %
Deemed income inclusion12 (1.7)%
Deduction of non-U.S. taxes paid(12)1.7 %
Tax credits(5)0.7 %
Nontaxable or nondeductible items:
Export incentive(46)6.4 %
Other13 (1.8)%
Other adjustments(2)0.3 %
Foreign tax effects:
China
Nondeductible impairment11 (1.5)%
Other adjustments(1.2)%
France
Nondeductible impairment17 (2.4)%
Statutory income tax rate differential(1.1)%
Germany
State and local income taxes(33)4.6 %
Tax refund claim(24)3.4 %
Changes in tax laws or rates enacted(24)3.4 %
Changes in valuation allowances17 (2.4)%
Statutory income tax rate differential11 (1.5)%
Other adjustments(3)0.4 %
Italy
Nondeductible impairment(1.1)%
Other adjustments(0.4)%
Malta
Statutory income tax rate differential(101)14.1 %
Mexico
Nondeductible impairment30 (4.2)%
Other adjustments(0.6)%
The Netherlands
Nondeductible impairment125 (17.5)%
Foreign currency gain or loss63 (8.8)%
Changes in valuation allowances13 (1.8)%
Nondeductible items10 (1.4)%
Statutory income tax rate differential(1.3)%
United Kingdom
Changes in valuation allowances85 (11.9)%
Other adjustments(1.3)%
Other foreign jurisdictions(1.0)%
Changes in unrecognized tax benefits(0.7)%
Provision for income taxes$70 (9.8)%
The states contributing to the majority (greater than 50%) of the state and local income tax, net of federal income tax effect, as presented above are Louisiana, Texas, Pennsylvania and Tennessee.
Nontaxable or nondeductible items primarily include the tax effect of export incentives. Export incentives relate to tax benefits derived from elections and structures available for U.S. exports. We anticipate the continued favorable treatment for export income based on current law. Prior to the adoption of ASU 2023-09 in 2025, these items were classified in our effective tax rate table with exempt income. Statutory income tax rate differential refers to the tax impact of income taxed at rates different from the U.S. statutory income tax rate.
For the years ended December 31, 2024 and 2023, prior to the adoption of ASU 2023-09, the effective income tax rate differs from the statutory federal income tax rate as follows:
 
Year Ended December 31,
Millions of dollars20242023
Income (loss) from continuing operations before income taxes:
U.S.$1,783 $1,630 
Non-U.S.(82)669 
Total$1,701 $2,299 
Income tax at U.S. statutory rate$358 $483 
Increase (reduction) resulting from:
Non-U.S. income/(loss) taxed at different statutory rates(102)
Return to accrual adjustments(26)(22)
State income taxes, net of federal benefit55 34 
Exempt income(101)(203)
Uncertain tax positions18 21 
Patent box ruling— (31)
Nondeductible impairments28 62 
Audit settlement— 46 
Foreign currency gain or loss(27)
Cross border tax effects19 14 
Other, net37 17 
Provision for income taxes$259 $433 
Our exempt income primarily includes interest income, export incentives, and equity earnings of joint ventures. Interest income earned by certain of our subsidiaries, through intercompany financings, is taxed at rates substantially lower than the U.S. statutory rate. Export incentives relate to tax benefits derived from elections and structures available for U.S. exports. Equity earnings from our joint ventures, when paid through dividends to certain European subsidiaries, are exempt from all or portions of normal statutory income tax rates. We anticipate the continued favorable treatment for dividends, and export income based on current law.
The deferred tax effects of tax loss, credit and interest carryforwards (“tax attributes”) and the tax effects of temporary differences between the tax basis of assets and liabilities and their reported amounts in the Consolidated Financial Statements, reduced by a valuation allowance where appropriate, are presented below:
 December 31,
Millions of dollars20252024
Deferred tax liabilities:
Accelerated tax depreciation$2,342 $2,342 
Investment in joint venture partnerships416 455 
Inventory101 194 
Operating lease assets342 330 
Other liabilities53 78 
Total deferred tax liabilities$3,254 $3,399 
Deferred tax assets:
Tax attributes$672 $420 
Employee benefit plans186 248 
Operating lease liabilities380 387 
Other assets205 203 
Total deferred tax assets1,443 1,258 
Deferred tax asset valuation allowances(293)(135)
Net deferred tax assets1,150 1,123 
Net deferred tax liabilities$2,104 $2,276 
Balance sheet classification is presented in the following table:
 December 31,
Millions of dollars20252024
Deferred tax assets—long-term$212 $259 
Deferred tax liabilities—long-term2,316 2,535 
Net deferred tax liabilities$2,104 $2,276 
Deferred taxes on the unremitted earnings of certain equity joint ventures and subsidiaries of $41 million and $57 million at December 31, 2025 and 2024, respectively, have been provided. The Company no longer intends to permanently reinvest approximately $600 million of our non-U.S. earnings. Future repatriation of these earnings to the U.S. would result in minimal tax impact.
As of December 31, 2025 and 2024, total tax attributes available amounted to $3,142 million and $1,968 million, respectively, resulting in the recognition of deferred tax assets of $672 million and $420 million as of December 31, 2025 and 2024, respectively.
The scheduled expiration of the tax attributes and the related deferred tax assets, before valuation allowance, as of December 31, 2025 are as follows:
Millions of dollarsTax AttributesDeferred Tax on Tax Attributes
2026$23 $
202732 
202830 
202937 
203027 
Thereafter758 51 
Indefinite2,235 599 
Total$3,142 $672 
The tax attributes are primarily related to operations in Germany, the United States, the United Kingdom, France, and The Netherlands. The related deferred tax assets by primary jurisdictions are shown below:
 December 31,
Millions of dollars202520242023
Germany$215 $107 $
United States128 114 151 
United Kingdom112 105 91 
France109 21 23 
The Netherlands67 35 18 
Other41 38 21 
Total$672 $420 $307 
To fully realize these net deferred tax assets, we will need to generate sufficient future taxable income in the countries where these tax attributes exist during the periods in which the attributes can be utilized. Based upon forecasts of expected taxable income over the periods in which the attributes can be utilized and/or temporary differences are expected to reverse, we believe it is more likely than not that $379 million of these deferred tax assets at December 31, 2025 will be realized.
As of each reporting date, we consider the weight of all evidence, both positive and negative, to determine if a valuation allowance is necessary for each jurisdiction’s net deferred tax assets. We place greater weight on historical evidence over future predictions of our ability to utilize net deferred tax assets. We consider future reversals of existing taxable temporary differences, future taxable income exclusive of reversing temporary differences, and taxable income in prior carry-back year(s) if carry-back is permitted under applicable law, as well as available prudent and feasible tax planning strategies that would, if necessary, be implemented to ensure realization of the net deferred tax asset.
A summary of the valuation allowances by primary jurisdiction is shown below, reflecting the valuation allowances for all the net deferred tax assets, including deferred tax assets for tax attributes and other temporary differences.
 December 31,
Millions of dollars202520242023
United Kingdom$115 $30 $30 
Germany101 43 
United States35 24 15 
The Netherlands21 
France— 21 23 
Other21 12 
Total$293 $135 $78 
During 2025, valuation allowances primarily in the United Kingdom had a material impact on the effective tax rate. Our activities in the United Kingdom are limited to a small number of manufacturing sites that are included in our United Kingdom tax group headed by LyondellBasell N.V., a holding company tax resident in the United Kingdom. LyondellBasell N.V., as a holding company, does not generate taxable income independently and therefore is dependent on the receipt of intercompany dividends to generate taxable income to offset its costs incurred. Given recent macroeconomic trends, intercompany dividends to LyondellBasell N.V. are constrained. As a result, we no longer believe it is more likely than not that the United Kingdom deferred tax assets will be realized. In Germany, the majority of the increase was associated with adjustments to attributes acquired in 2024. As a full valuation allowance was established in 2024 in connection with the acquisition of a business, these adjustments did not impact the effective tax rate.

During 2024 and 2023, valuation allowances did not have a material impact to our effective tax rate. The increase in valuation allowances from 2023 to 2024 was primarily due to attributes acquired during 2024 that required a full valuation allowance.
The following table presents a reconciliation of the beginning and ending amounts of unrecognized tax benefits included in the Consolidated Balance Sheets:
 Year Ended December 31,
Millions of dollars202520242023
Unrecognized tax benefit, beginning of period$236 $288 $271 
Additions for tax positions of current year— 14 37 
Additions for tax positions of prior years128 15 
Reductions for tax positions of prior years(3)(15)(22)
Reductions resulting from the lapse of statutes of limitations(49)— — 
Settlements (payments/refunds)(73)(66)— 
Unrecognized tax benefit, end of period$239 $236 $288 
The majority of the uncertain tax positions, if recognized, will affect the effective tax rate. During 2025, 2024 and 2023, our effective tax rate included tax expense of $5 million, $18 million and $21 million, respectively, related to adjustments in uncertain tax position balances. During 2025, we entered into a settlement with the tax authorities related to a transfer pricing position and released related reserves of $73 million. This position will not result in a material net cash impact as there is an almost fully offsetting income tax receivable. During 2024, we entered into an audit settlement and released a related $66 million non-cash reserve. The settlement of this position did not affect the effective tax rate.
We recognize interest associated with unrecognized tax benefits in income tax expense. Income tax expense includes interest and penalties of $16 million, $15 million and $11 million in 2025, 2024 and 2023, respectively. Accrued interest and penalties as of December 31, 2025, 2024 and 2023 were $82 million, $67 million, and $52 million, respectively.
We operate in multiple jurisdictions throughout the world, and our tax returns are periodically audited or subjected to review by tax authorities. We are currently under examination in a number of tax jurisdictions. As a result, there is an uncertainty in income taxes recognized in our financial statements. Positions challenged by the tax authorities may be settled or appealed by us.
A summary of the years open to examination in our primary jurisdictions is as follows:
JurisdictionOpen Tax Years
France2020 and later
Germany2008 and later
Italy2014 and later
The Netherlands2018 and later
United Kingdom2024 and later
United States2014 and later
The following is a supplemental schedule of income taxes paid (net of refunds) disaggregated by federal, state, and non-U.S.:
Year Ended December 31,
Millions of dollars2025
Net income taxes paid:
U.S. federal$307 
U.S. state32 
Non-U.S.
France(26)
The Netherlands24 
Germany(20)
Hong Kong23 
Other53 
Total net income taxes paid$393 
Taxes paid in 2025 include $235 million in U.S. Federal corporate income tax payments deferred from 2024 into 2025 under Hurricane Beryl disaster relief provisions. Total income taxes paid for the years ended December 31, 2024 and 2023 were $343 million and $465 million, respectively.
v3.25.4
Commitments and Contingencies
12 Months Ended
Dec. 31, 2025
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies Commitments and Contingencies
Commitments—We have various purchase commitments for materials, supplies and services incidental to the ordinary conduct of business, generally for quantities required for our businesses and at prevailing market prices. These commitments are designed to ensure sources of supply and are not expected to be in excess of normal requirements. Additionally, we have capital expenditure commitments, which we incur in our normal course of business.
Financial Assurance Instruments—We have obtained letters of credit, performance and surety bonds and have issued financial and performance guarantees to support trade payables, potential liabilities and other obligations. Considering the frequency of claims made against the financial instruments we use to support our obligations, and the magnitude of those financial instruments in light of our current financial position, we do not expect that any claims against or draws on these instruments would have a material adverse effect on the Consolidated Financial Statements. We have not experienced any unmanageable difficulties in obtaining the required financial assurance instruments for our current operations.
Environmental Remediation—Accrued liabilities for future environmental remediation costs at current and former plant sites and other remediation sites totaled $178 million and $140 million as of December 31, 2025 and 2024, respectively. This includes $74 million which is included in Liabilities held for sale as of December 31, 2025. These amounts are included in Accrued and other current liabilities, Other liabilities and Liabilities held for sale on the Consolidated Balance Sheets.
As of December 31, 2025, the accrued liabilities for individual sites range from less than $1 million to $50 million. The remediation expenditures are expected to occur over a number of years and are not concentrated in any single year. In our opinion, it is reasonably possible that losses in excess of the liabilities recorded may have been incurred. However, we cannot estimate any amount or range of such possible additional losses. New information about sites, new technology or future developments, such as involvement in investigations by regulatory agencies, could require us to reassess our potential exposure related to environmental matters.
The following table summarizes the activity in our accrued environmental liability:
 Year Ended December 31,
Millions of dollars20252024
Beginning balance$140 $124 
Changes in estimates45 29 
Amounts paid(10)(10)
Foreign exchange effects(3)
Other(3)— 
Ending balance$178 $140 
Indemnification—We are parties to various indemnification arrangements, including arrangements entered into in connection with acquisitions, divestitures and the formation and dissolution of joint ventures. Pursuant to these arrangements, we provide indemnification to and/or receive indemnification from other parties in connection with liabilities that may arise in connection with the transactions and in connection with activities prior to completion of the transactions. These indemnification arrangements typically include provisions pertaining to third-party claims relating to environmental and tax matters, as well as various types of litigation. As of December 31, 2025, we had not accrued any significant amounts for our indemnification obligations, and we are not aware of other circumstances that would likely lead to significant future indemnification obligations. We cannot determine with certainty the potential amount of future payments under the indemnification arrangements until events arise that would trigger a liability under the arrangements.
As part of our technology licensing contracts, we give indemnifications to our licensees for liabilities arising from possible patent infringement claims with respect to certain proprietary licensed technologies. Such indemnifications have a stated maximum amount and generally cover a period of 5 to 10 years.
Legal Proceedings—We are subject to various lawsuits and claims, including but not limited to, matters involving contract disputes, tort claims, tax proceedings, and regulatory disputes alleging environmental damage, personal injury and/or property damage, some of which are covered by insurance. We vigorously defend ourselves and prosecute these matters as appropriate.
Our legal organization applies its knowledge, experience and professional judgment to the specific characteristics of our cases, employing a litigation management process to manage and monitor legal proceedings in which we are a party. Our process facilitates the early evaluation and quantification of potential exposures in individual cases. This process also enables us to track those cases that have been scheduled for trial, mediation or other resolution. We regularly assess the adequacy of legal accruals based on our professional judgment, experience and the information available regarding our cases.
Based on consideration of all relevant facts and circumstances, we do not believe the ultimate outcome of any currently pending lawsuit or claim against us will have a material adverse effect upon our operations, financial condition or Consolidated Financial Statements.
v3.25.4
Shareholders' Equity and Redeemable Non-controlling Interests
12 Months Ended
Dec. 31, 2025
Shareholders' Equity and Redeemable Non-controlling Interests [Abstract]  
Shareholders' Equity and Redeemable Non-controlling Interests Shareholders’ Equity and Redeemable Non-controlling Interests
Shareholders’ Equity
Dividend Distributions—The following table summarizes the dividends paid to common shareholders in the periods presented:
Millions of dollars, except per share amountsDividend Per
Ordinary
Share
Aggregate
Dividends
Paid
Date of Record
For the year 2025:
March$1.34 $433 March 10, 2025
June1.37 445 June 2, 2025
September1.37 443 August 25, 2025
December1.37 443 December 1, 2025
$5.45 $1,764 
For the year 2024:
March$1.25 $408 March 4, 2024
June1.34 438 June 3, 2024
September 1.34 437 August 26, 2024
December1.34 437 December 2, 2024
$5.27 $1,720 
In February 2026, we declared a quarterly dividend of $0.69 per share, representing a $0.68 per share reduction from our fourth quarter 2025 dividend. The dividend will be paid to shareholders on March 9, 2026, with an ex-dividend and record date of March 2, 2026.
Share Repurchase Authorization—In May 2025, our shareholders approved a proposal to authorize us to repurchase up to 34.0 million ordinary shares, through November 23, 2026 (“2025 Share Repurchase Authorization”), which superseded any prior repurchase authorizations. The timing and amount of these repurchases, which are determined based on our evaluation of market conditions and other factors, may be executed from time to time through open market or privately negotiated transactions. The repurchased shares, which are recorded at cost, are classified as Treasury stock and may be retired or used for general corporate purposes, including for various employee benefit and compensation plans.
In May 2024, our shareholders approved a proposal to authorize us to repurchase up to 34.0 million ordinary shares, through November 24, 2025 (“2024 Share Repurchase Authorization”), which superseded any prior repurchase authorizations.
In May 2023, our shareholders approved a proposal to authorize us to repurchase up to 34.0 million ordinary shares, through November 19, 2024 (“2023 Share Repurchase Authorization”), which superseded any prior repurchase authorizations.
The following table summarizes our share repurchase activity for the periods presented:
Millions of dollars, except shares and per share amountsShares
Repurchased
Average
Purchase
Price
Total Purchase Price, Including Commissions and Fees
For the year 2025:
2024 Share Repurchase Authorization3,037,987 $66.01 $201 
3,037,987 $66.01 $201 
For the year 2024:
2024 Share Repurchase Authorization2,236,348 $88.42 $198 
2,236,348 $88.42 $198 
For the year 2023:
2022 Share Repurchase Authorization1,365,898 $88.98 $122 
2023 Share Repurchase Authorization983,309 90.99 89 
2,349,207 $89.82 $211 
Total cash paid for share repurchases for the years ended December 31, 2025, 2024 and 2023 was $201 million, $195 million and $211 million, respectively. Cash payments made during the reporting period may differ from the total purchase price, including commissions and fees, due to the timing of payments.
Ordinary Shares—The changes in the outstanding amounts of ordinary shares are as follows:
 Year Ended December 31,
 202520242023
Ordinary shares outstanding:
Beginning balance323,889,832 324,483,402 325,723,567 
Share-based compensation621,601 1,278,115 793,984 
Employee stock purchase plan611,323 364,663 315,058 
Purchase of ordinary shares(3,037,987)(2,236,348)(2,349,207)
Ending balance322,084,769 323,889,832 324,483,402 
Treasury Shares—The changes in the amounts of treasury shares held by the Company are as follows:
 Year Ended December 31,
 202520242023
Ordinary shares held as treasury shares:
Beginning balance16,532,666 15,939,096 14,698,931 
Share-based compensation(621,601)(1,278,115)(793,984)
Employee stock purchase plan(611,323)(364,663)(315,058)
Purchase of ordinary shares3,037,987 2,236,348 2,349,207 
Ending balance18,337,729 16,532,666 15,939,096 
Accumulated Other Comprehensive Loss—The components of, and after-tax changes in, Accumulated other comprehensive loss as of and for the years ended December 31, 2025, 2024 and 2023 are presented in the following table:
Foreign currency translation adjustments below include currency translation adjustments as well as gains (losses) on net investment hedges; the associated tax benefits or expenses are calculated separately for each component.
Millions of dollarsFinancial
Derivatives
Defined
Benefit
Pension
and Other
Post-retirement
Benefit Plans
Foreign
Currency
Translation
Adjustments
Total
Balance, December 31, 2022$(146)$(182)$(1,044)$(1,372)
Other comprehensive income (loss) before reclassifications(178)(142)45 (275)
Tax benefit before reclassifications47 38 28 113 
Amounts reclassified from accumulated other comprehensive loss69 — 78 
Tax expense(18)(2)— (20)
Net other comprehensive income (loss)(80)(97)73 (104)
Balance, December 31, 2023$(226)$(279)$(971)$(1,476)
Other comprehensive income (loss) before reclassifications$51 $(21)$(125)$(95)
Tax (expense) benefit before reclassifications(13)(44)(52)
Amounts reclassified from accumulated other comprehensive loss102 18 — 120 
Tax expense(25)(4)— (29)
Net other comprehensive income (loss)115 (2)(169)(56)
Balance, December 31, 2024$(111)$(281)$(1,140)$(1,532)
Other comprehensive income (loss) before reclassifications$(92)$52 $108 $68 
Tax (expense) benefit before reclassifications23 (15)91 99 
Amounts reclassified from accumulated other comprehensive loss62 12 — 74 
Tax expense(15)(4)— (19)
Net other comprehensive income (loss)(22)45 199 222 
Balance, December 31, 2025$(133)$(236)$(941)$(1,310)
The amounts reclassified out of each component of Accumulated other comprehensive loss are as follows:
Millions of dollarsYear Ended December 31,Affected Line Items on the Consolidated Statements of Income
202520242023
Reclassification adjustments for:
Financial derivatives:
Commodities$— $$— Sales and other operating expenses
Commodities22 129 33 Cost of sales
Foreign currency36 (35)31 Interest expense
Interest ratesInterest expense
Income tax (expense) benefit(15)(25)(18)Provision for income taxes
Financial derivatives, net of tax47 77 51 
Amortization of defined pension items:
Settlement gain(1)— — Other income (expense), net
Actuarial loss13 15 Other income (expense), net
Prior service costOther income (expense), net
Curtailment gain(3)— — Other income (expense), net
Income tax expense(4)(4)(2)Provision for income taxes
Defined pension items, net of tax14 
Total reclassifications, before tax74 120 78 
Income tax expense(19)(29)(20)Provision for income taxes
Total reclassifications, after tax$55 $91 $58 Amount included in net income
Amortization of defined pension items are included in the computation of net periodic pension and other post-retirement benefit costs, see Note 16 to the Consolidated Financial Statements.
Redeemable Non-controlling Interests
As of December 31, 2025 and 2024, we had 112,964 and 113,053 shares of redeemable non-controlling interest stock outstanding, respectively. During the years ended December 31, 2025, 2024, and 2023, 89, 22, and 396 shares, respectively, were redeemed for less than $1 million in each year.
In February, May, August and November 2025, we paid cash dividends of $15.00 per share to our redeemable non-controlling interest stock shareholders of record as of January 15, 2025, April 15, 2025, July 15, 2025, and October 15, 2025, respectively. In 2025, 2024 and 2023, these dividends were $7 million for each year.
v3.25.4
Per Share Data
12 Months Ended
Dec. 31, 2025
Earnings Per Share [Abstract]  
Per Share Data Per Share Data
Basic earnings per share is based upon the weighted average number of shares of common stock outstanding during the period. Diluted earnings per share includes the effect of certain stock option and other equity-based compensation awards. Our unvested restricted stock units contain non-forfeitable rights to dividend equivalents and are considered participating securities. We calculate basic and diluted earnings per share under the two-class method.
Earnings (loss) per share data is as follows:
 Year Ended December 31,
 202520242023
 ContinuingDiscontinuedContinuingDiscontinuedContinuingDiscontinued
Millions of dollarsOperationsOperationsOperationsOperationsOperationsOperations
Net income (loss)$(785)$47 $1,442 $(75)$1,866 $255 
Dividends on redeemable non-controlling interests(7)— (7)— (7)— 
Net income attributable to participating securities(7)— (6)— (7)— 
Net income (loss) attributable to ordinary shareholders—basic and diluted$(799)$47 $1,429 $(75)$1,852 $255 
Millions of shares,
except per share amounts
Basic weighted average common stock outstanding322 322 325 325 325 325 
Effect of dilutive securities— — 
Potential dilutive shares322 322 326 326 326 326 
Earnings (loss) per share:
Basic$(2.48)$0.14 $4.40 $(0.24)$5.70 $0.78 
Diluted$(2.48)$0.14 $4.39 $(0.24)$5.68 $0.78 
v3.25.4
Segment and Related Information
12 Months Ended
Dec. 31, 2025
Segment Reporting [Abstract]  
Segment and Related Information Segment and Related Information
Our operations are managed by senior executives who report to our Chief Executive Officer, the chief operating decision maker. Discrete financial information is available for each of the segments. The Chief Executive Officer uses EBITDA as the primary measure for reviewing the profitability of our segments and allocating resources to the segments. We define EBITDA as net income (loss) before interest, income taxes, and depreciation and amortization. Our chief operating decision maker does not receive information about total assets by reportable segment.
The activities of each of our segments from which they earn revenues and incur expenses are described below:
Olefins and Polyolefins-Americas (“O&P-Americas”). Our O&P-Americas segment produces and markets olefins and co-products, polyethylene and polypropylene.

Olefins and Polyolefins-Europe, Asia, International (“O&P-EAI”). Our O&P-EAI segment produces and markets olefins and co-products, polyethylene and polypropylene.

Intermediates and Derivatives (“I&D”). Our I&D segment produces and markets propylene oxide and its derivatives; oxyfuels and related products; and intermediate chemicals such as styrene monomer and acetyls.

Advanced Polymer Solutions (“APS”). Our APS segment produces and markets compounding and solutions, such as polypropylene compounds, engineered plastics, masterbatches, engineered composites and colors.

Technology. Our Technology segment develops and licenses chemical and polyolefin process technologies and manufactures and sells polyolefin catalysts.
“Other” includes intersegment eliminations and items that are not directly related or allocated to business operations, such as foreign exchange gains or losses and components of pension and other post-retirement benefit costs other than service costs. Sales between segments are made at prices approximating prevailing market prices.
Summarized financial information concerning reportable segments is shown in the following tables for the periods presented:
 Year Ended December 31, 2025
 O&P -
Americas
O&P -
EAI
I&DAPSTechnologyOtherTotal
Millions of dollars
Sales and other operating revenues:
Customers$7,669 $9,611 $8,953 $3,457 $463 $— $30,153 
Intersegment2,132 616 116 15 86 (2,965)— 
9,801 10,227 9,069 3,472 549 (2,965)30,153 
Less:
Cost of sales8,873 9,963 8,347 3,074 280 (2,961)27,576 
Impairments460 — 782 — — 1,251 
(Income) loss from equity investments(37)52 (3)— — — 12 
Loss on sale of business— — — — — 
Other items464 412 256 344 132 25 1,633 
Add:
Depreciation and amortization expense652 203 409 83 43 — 1,390 
EBITDA$1,144 $(457)$878 $(651)$180 $(29)$1,065 
Capital expenditures$793 $461 $433 $99 $92 $— $1,878 
 Year Ended December 31, 2024
Millions of dollarsO&P -
Americas
O&P -
EAI
I&DAPSTechnologyOtherTotal
Sales and other operating revenues:
Customers$8,791 $10,188 $10,219 $3,616 $580 $— $33,394 
Intersegment2,742 679 205 18 91 (3,735)— 
11,533 10,867 10,424 3,634 671 (3,735)33,394 
Less:
Cost of sales9,261 10,529 9,208 3,271 211 (3,730)28,750 
Impairments— 892 55 — — 949 
(Income) loss from equity investments(13)217 13 — — — 217 
Gain on sale of business— — (284)— — — (284)
Other items459 440 222 344 123 30 1,618 
Add:
Depreciation and amortization expense619 220 401 90 42 — 1,372 
EBITDA$2,445 $(991)$1,664 $54 $379 $(35)$3,516 
Capital expenditures$635 $525 $445 $105 $95 $$1,808 
 Year Ended December 31, 2023
Millions of dollarsO&P -
Americas
O&P -
EAI
I&DAPSTechnologyOtherTotal
Sales and other operating revenues:
Customers$8,333 $9,822 $10,917 $3,686 $578 $— $33,336 
Intersegment2,947 657 169 12 85 (3,870)— 
11,280 10,479 11,086 3,698 663 (3,870)33,336 
Less:
Cost of sales9,146 10,165 9,383 3,393 210 (3,862)28,435 
Impairments25 38 192 252 — — 507 
(Income) loss from equity investments(49)55 13 — — 20 
Other items442 437 262 312 119 48 1,620 
Add:
Depreciation and amortization expense587 207 443 98 41 — 1,376 
EBITDA$2,303 $(9)$1,679 $(162)$375 $(56)$4,130 
Capital expenditures$480 $273 $590 $75 $69 $12 $1,499 
Other items include Selling, general and administrative (“SG&A”) expenses, Research and development expenses, and Other income (expense), net. See Notes 9 and 10 to the Consolidated Financial Statements for additional information regarding impairments.
A reconciliation of EBITDA to Income (loss) from continuing operations before income taxes is shown in the following table for each of the periods presented. Indirect SG&A expense reallocation to continuing operations represents corporate SG&A expenses that were previously allocated to the refining segment:
 Year Ended December 31,
Millions of dollars202520242023
EBITDA:
Total segment EBITDA$1,094 $3,551 $4,186 
Other EBITDA(29)(35)(56)
Less:
Depreciation and amortization expense(1,390)(1,372)(1,376)
Interest expense(487)(481)(477)
Indirect SG&A expense reallocation to continuing operations— (112)(107)
Add:
Interest income97 150 129 
Income (loss) from continuing operations before income taxes$(715)$1,701 $2,299 
The following assets are summarized and reconciled to consolidated totals in the following table:
Millions of dollarsO&P -
Americas
O&P -
EAI
I&DAPSTechnologyTotal
December 31, 2025
Property, plant and equipment, net$6,775 $1,642 $6,123 $607 $686 $15,833 
Equity investments1,958 1,658 346 — 3,963 
Goodwill475 — 225 — 708 
December 31, 2024
Property, plant and equipment, net$6,592 $1,553 $5,670 $655 $596 $15,066 
Equity investments2,011 1,732 377 — 4,121 
Goodwill472 355 209 517 1,561 
Long-lived assets include Property, plant and equipment, net, Intangible assets, net and Equity investments, see Notes 9 and 10 to the Consolidated Financial Statements. The following long-lived assets data is based upon the location of the assets:
 December 31,
Millions of dollars20252024
Long-lived assets:
United States$14,551 $14,456 
Germany2,012 1,691 
The Netherlands830 784 
Italy496 399 
Mexico226 257 
France184 171 
Poland168 173 
China120 124 
Thailand116 123 
Other1,543 1,586 
Total$20,246 $19,764 
v3.25.4
Insider Trading Arrangements
3 Months Ended
Dec. 31, 2025
Trading Arrangements, by Individual  
Rule 10b5-1 Arrangement Adopted false
Non-Rule 10b5-1 Arrangement Adopted false
Rule 10b5-1 Arrangement Terminated false
Non-Rule 10b5-1 Arrangement Terminated false
v3.25.4
Insider Trading Policies and Procedures
12 Months Ended
Dec. 31, 2025
Insider Trading Policies and Procedures [Line Items]  
Insider Trading Policies and Procedures Adopted true
v3.25.4
Cybersecurity Risk Management and Strategy Disclosure
12 Months Ended
Dec. 31, 2025
Cybersecurity Risk Management, Strategy, and Governance [Line Items]  
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]
We recognize sophisticated global cybersecurity threats and targeted computer crimes pose a continuously evolving risk to the confidentiality, availability, and integrity of our data, operations and infrastructure. We have implemented comprehensive practices to minimize these risks. Our cybersecurity program is based on the National Institute of Standards and Technology Cybersecurity Framework and is certified to the International Organization for Standardization ISO 27001, a standard for information security management, which covers key areas of management, technical and physical controls, legal, compliance and business continuity management.
Our management utilizes a systematic approach to evaluating and determining risk tolerance and prioritizes the safeguarding of our digital assets. The Chief Information Security Officer (“CISO”) is the Vice President of Cybersecurity leading our cybersecurity program and reports to the Executive Vice President and Chief Innovation Officer, who serves on the Executive Committee and reports to the CEO. The CISO has a Master of Science degree in Cybersecurity Operations, is certified as an information security professional with the International Information System Security Certification Consortium (“ISC2”) and International Association of Privacy Professionals, and has over thirty years of leadership experience in technology, systems architecture, and cybersecurity.

Cybersecurity events are continuously monitored by global security operations centers staffed in the United States, European Union, and Asia Pacific regions with events and incidents being managed based upon the MITRE ATT&CK framework, a system for classifying and describing cyberattacks and intrusions. Management provides guidance and is informed of cybersecurity events through a committee with cross-functional representation of executive leadership. The committee meets at least quarterly for activities such as determining policy, reviewing active risks, assessing impact of emerging threats or regulatory changes, and monitoring active incidents. This committee also receives escalated alerts within 24-hours of confirmed cybersecurity events, and will determine the severity of the incident, engage with crisis management as necessary, and disseminate that information internally as appropriate and warranted. The Company’s generative artificial intelligence strategy is to “Generate Responsibly,” actively providing education and awareness, encouraging the safe exploration of generative AI tools and resources, consistent with Company data protection policies and standards.
Third-party service providers must meet baseline security requirements before they connect to our systems or manage sensitive information. They are evaluated based on risk, which is based on financial, operational, legal/regulatory, capacity, cybersecurity posture, and reputational impact. Additionally, high risk third-party service providers are continuously monitored for security health and active threats.

We recognize the risk posed by global cybersecurity threats, and our Board is regularly updated on emerging risks and maintains oversight of our cybersecurity program implemented to address them. In 2025, management provided a detailed cybersecurity update to the Board and led discussions on specific cybersecurity and process control topics at its May meeting.
While management is responsible for assessing and managing our day-to-day risks and control systems, the Audit Committee of the Board oversees our information technology and cybersecurity risks. The Committee conducts a comprehensive review of cybersecurity topics and reviews our programs and practices with management at least annually, and receives management’s report on our cybersecurity dashboard, which summarizes key security metrics and activities, at each quarterly Committee meeting.
To further advance cybersecurity awareness, we adopted behavior-based education that helps improve employee’s performance identifying and reporting fraudulent email and voice fraud.
Our cybersecurity program includes, but is not limited to:

annual cybersecurity education for all company computer users on relevant policies and standards, best practices at work and at home;
communication processes including how to identify, respond, and report threats or potential vulnerabilities;
protective software installed and configured on Company systems and mobile devices, updated and patched on a regular basis, to provide the highest level of protection against malicious threats;
an established program based on the MITRE ATT&CK framework for managing ransomware and other cybersecurity incidents;
regular internal audits of our IT infrastructure and information security management systems to ensure compliance and continuous improvement;
penetration, discovery and vulnerability assessments conducted daily;
mobile threat protection mechanisms and policies;
business continuity plans that are well documented and tested regularly; disaster recovery plans that are also well documented and tested at least annually; certain key financial applications that are tested at least semi-annually; and
coverage for non-damage business interruption or liability for data breaches as a part of the Company’s combined insurance programs.
Cybersecurity Risk Management Processes Integrated [Flag] true
Cybersecurity Risk Management Processes Integrated [Text Block] We recognize sophisticated global cybersecurity threats and targeted computer crimes pose a continuously evolving risk to the confidentiality, availability, and integrity of our data, operations and infrastructure. We have implemented comprehensive practices to minimize these risks. Our cybersecurity program is based on the National Institute of Standards and Technology Cybersecurity Framework and is certified to the International Organization for Standardization ISO 27001, a standard for information security management, which covers key areas of management, technical and physical controls, legal, compliance and business continuity management.
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] While management is responsible for assessing and managing our day-to-day risks and control systems, the Audit Committee of the Board oversees our information technology and cybersecurity risks. The Committee conducts a comprehensive review of cybersecurity topics and reviews our programs and practices with management at least annually, and receives management’s report on our cybersecurity dashboard, which summarizes key security metrics and activities, at each quarterly Committee meeting.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block] While management is responsible for assessing and managing our day-to-day risks and control systems, the Audit Committee of the Board oversees our information technology and cybersecurity risks.
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] The Committee conducts a comprehensive review of cybersecurity topics and reviews our programs and practices with management at least annually, and receives management’s report on our cybersecurity dashboard, which summarizes key security metrics and activities, at each quarterly Committee meeting.
Cybersecurity Risk Role of Management [Text Block] Management provides guidance and is informed of cybersecurity events through a committee with cross-functional representation of executive leadership. The committee meets at least quarterly for activities such as determining policy, reviewing active risks, assessing impact of emerging threats or regulatory changes, and monitoring active incidents. This committee also receives escalated alerts within 24-hours of confirmed cybersecurity events, and will determine the severity of the incident, engage with crisis management as necessary, and disseminate that information internally as appropriate and warranted. The Company’s generative artificial intelligence strategy is to “Generate Responsibly,” actively providing education and awareness, encouraging the safe exploration of generative AI tools and resources, consistent with Company data protection policies and standards.
Cybersecurity Risk Management Positions or Committees Responsible [Flag] true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block] Our management utilizes a systematic approach to evaluating and determining risk tolerance and prioritizes the safeguarding of our digital assets. The Chief Information Security Officer (“CISO”) is the Vice President of Cybersecurity leading our cybersecurity program and reports to the Executive Vice President and Chief Innovation Officer, who serves on the Executive Committee and reports to the CEO.
Cybersecurity Risk Management Expertise of Management Responsible [Text Block] The CISO has a Master of Science degree in Cybersecurity Operations, is certified as an information security professional with the International Information System Security Certification Consortium (“ISC2”) and International Association of Privacy Professionals, and has over thirty years of leadership experience in technology, systems architecture, and cybersecurity.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] Management provides guidance and is informed of cybersecurity events through a committee with cross-functional representation of executive leadership. The committee meets at least quarterly for activities such as determining policy, reviewing active risks, assessing impact of emerging threats or regulatory changes, and monitoring active incidents. This committee also receives escalated alerts within 24-hours of confirmed cybersecurity events, and will determine the severity of the incident, engage with crisis management as necessary, and disseminate that information internally as appropriate and warranted. The Company’s generative artificial intelligence strategy is to “Generate Responsibly,” actively providing education and awareness, encouraging the safe exploration of generative AI tools and resources, consistent with Company data protection policies and standards.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] true
v3.25.4
Summary of Significant Accounting Policies (Policies)
12 Months Ended
Dec. 31, 2025
Accounting Policies [Abstract]  
Basis of Preparation and Consolidation
Basis of Preparation and Consolidation
The accompanying Consolidated Financial Statements have been prepared from the books and records of LyondellBasell N.V. under accounting principles generally accepted in the United States (“U.S. GAAP”). Subsidiaries are defined as being those companies over which we, either directly or indirectly, have control through a majority of the voting rights or the right to exercise control or to obtain the majority of the benefits and be exposed to the majority of the risks. Subsidiaries are consolidated from the date on which control is obtained until the date that such control ceases. All intercompany transactions and balances have been eliminated in consolidation.
In February 2025, we ceased business operations at our Houston refinery. Accordingly, our refining business, previously disclosed as the Refining segment, is reported as a discontinued operation. The related operating results of our refining business are reported as discontinued operations for all periods presented.
Discontinued operations also include costs associated with the closure and dismantlement of our Berre refinery.
Cash and Cash Equivalents
Cash and Cash Equivalents
Our cash equivalents consist of highly liquid debt instruments such as certificates of deposit, commercial paper and money market accounts with major international banks and financial institutions. Cash equivalents also include other instruments with maturities of three months or less when acquired and exclude restricted cash.
Short-Term Investments
Short-Term Investments
Our investments in debt securities are classified as available-for-sale and held-to-maturity on the basis of our intent and ability to hold the investments. Investments classified as available-for-sale are carried at fair value with changes reflected in other comprehensive income (loss). Credit-related impairments, measured using expected cash flows and limited to the amount by which the amortized cost basis of a security exceeds its fair value, are recognized through an allowance for expected credit losses, and adjusted subsequently if conditions change, with a corresponding impact in earnings. Where there is an intention or a requirement to sell an impaired available-for-sale debt security, the entire impairment is recognized in earnings with a corresponding adjustment to the amortized cost basis of the security.
Investments classified as held-to-maturity are carried at amortized cost less allowance for credit losses recorded through Net income.
Trade Receivables
Trade Receivables
Trade receivables are amounts due from customers for merchandise sold or services performed in the ordinary course of business and are carried at transaction price net of allowance for credit losses. Allowance for credit losses is measured using historical loss rates for the respective risk categories and incorporating forward-looking estimates. The corresponding expense for the loss allowance is reflected in Selling, general and administrative expenses.
Inventories
Inventories
Cost of our raw materials, work-in-progress and finished goods inventories is determined using the last-in, first-out (“LIFO”) method and is carried at the lower of cost or market value. Cost of our materials and supplies inventory is determined using the average cost method and is carried at the lower of cost and net realizable value.
Inventory exchange transactions, which involve fungible commodities, are not accounted for as purchases and sales. Any resulting volumetric exchange balances are accounted for as inventory, with cost determined using the LIFO method.
Property, Plant and Equipment
Property, Plant and Equipment
Property, plant and equipment are recorded at historical cost. Historical cost includes expenditures that are directly attributable to the acquisition of the items. Costs may also include borrowing costs incurred on debt during construction of major projects exceeding one year, costs of major maintenance arising from turnarounds of major units and legally obligated decommissioning costs. Routine maintenance costs are expensed as incurred.
Depreciation is computed using the straight-line method over the estimated useful lives of assets to their residual values. The residual values and useful lives of assets are reviewed, and adjusted if appropriate, whenever events or circumstances indicate that a revision is warranted. Land is not depreciated.
We evaluate property, plant and equipment for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Long-lived assets are grouped at the lowest level for which there are identifiable cash flows that are largely independent of the cash flows of other groups of assets, which, for us, is generally at the plant group level (or, at times, individual plants in certain circumstances where we have isolated production units with separately identifiable cash flows). If it is determined that an asset or asset group’s carrying value exceeded its estimated fair value, the asset is written down to its estimated fair value.
Equity Investments
Equity Investments
We account for equity method investments (“equity investments”) using the equity method of accounting if we have the ability to exercise significant influence over, but do not control, an investee. Significant influence generally exists if we have an ownership interest representing between 20% and 50% of the voting rights. Under the equity method of accounting, investments are stated initially at cost and are adjusted for subsequent additional investments and our proportionate share of profit or losses and distributions.
We record our share of the profits or losses of the equity investments, net of income taxes, in the Consolidated Statements of Income (Loss). When our share of losses in an equity investment equals or exceeds the carrying amount of our investment including advances made by us, we do not recognize further losses, unless we have guaranteed obligations or are otherwise committed to provide further financial support to the investee.
We discontinue applying equity method accounting when our investment is reduced to zero. Equity method of accounting is resumed only after the investment realizes net income in excess of our share of net losses not recognized during the period equity method was suspended.

We assess our equity investments for impairment whenever events or changes in circumstances indicate that the carrying amount of the investment may not be recoverable. If the decline in value is considered to be other-than-temporary, the investment is written down to its estimated fair value.
Investments in PO Joint Ventures and the Louisiana Joint Venture—We share ownership with Covestro PO LLC, a subsidiary of Covestro AG (collectively “Covestro”), in a U.S. propylene oxide (“PO”) joint venture located in Texas (the “U.S. PO Joint Venture”) and a PO/styrene monomer (“SM” or “styrene”) joint venture located in The Netherlands (the “European PO Joint Venture”). We operate the U.S. PO Joint Venture manufacturing facility and arrange the logistics of product delivery. Each partner funds their share of capital expenditures, reimburses manufacturing operating expenses excluding depreciation and amortization expenses, and receives a share of production in-kind. In March 2025, we announced the permanent closure of our European PO Joint Venture. The European PO Joint Venture was formed solely for the benefit of the partners and did not manufacture for any other parties. We reported the cost of our product off-take as Inventory and the equity loss as Cost of sales in our Consolidated Financial Statements.
The U.S. PO Joint Venture owns a PO/SM and a PO/tertiary butyl alcohol (“TBA”) plant. Covestro’s interest in the U.S. PO Joint Venture represents ownership of an in-kind portion of the PO production of 680 thousand tons per year. We take, in-kind, the remaining PO production and all co-product production.
We share ownership in the Louisiana Integrated PolyEthylene JV LLC joint venture (the “Louisiana Joint Venture”) with Sasol Chemicals (USA) LLC. Under this arrangement, we have a 50% ownership interest in an ethane cracker, a low-density and linear-low density polyethylene plant, and associated infrastructure. Under the terms of the joint venture agreement, each partner provides pro-rata share of ethane feedstocks and off-takes pro-rata shares of cracker and polyethylene products in-kind. We operate the Louisiana Joint Venture assets and market the polyethylene off-take for all partners through our global sales team.
We account for the U.S. PO Joint Venture and the Louisiana Joint Venture, using the equity method. These joint ventures were formed solely for the benefit of the partners and do not manufacture for any other parties. We report the cost of our product off-take as Inventory and the equity loss as Cost of sales in our Consolidated Financial Statements. Related production cash flows are reported in the operating cash flow section of the Consolidated Statements of Cash Flows.
Our equity investment in the U.S. PO Joint Venture and the Louisiana Joint Venture represents our share of the manufacturing plants and is decreased by recognition of our share of equity loss, which is equal to the depreciation of the assets of these joint ventures. Other changes in the investment balance are principally due to our additional capital contributions to these joint ventures to fund capital expenditures. Such contributions are reported in the investing cash flow section of the Consolidated Statements of Cash Flows.
Our product off-take of PO and its co-products from the PO Joint Ventures was 1.9 million, 2.0 million and 2.2 million tons in 2025, 2024 and 2023, respectively. Our product off-take of ethylene and polyethylene produced from the Louisiana Joint Venture was 1.0 million, 1.1 million, and 1.2 million tons in 2025, 2024, and 2023, respectively.
Goodwill
Goodwill
Goodwill is tested for impairment annually in the fourth quarter or whenever events or changes in circumstances indicate that the fair value of a reporting unit with goodwill is less than its carrying amount. We first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value. Qualitative factors assessed for each of the reporting units include, but are not limited to, changes in long-term commodity prices, discount rates, competitive environments, planned capacity, cost factors such as raw material prices, and financial performance of the reporting units. If the qualitative assessment indicates that it is more likely than not that the carrying value of a reporting unit exceeds its fair value, a quantitative test is required. If the carrying value of the reporting unit including goodwill exceeds its fair value, an impairment charge equal to the excess would be recognized up to a maximum amount of goodwill allocated to that reporting unit.
In the third quarter of 2025, we evaluated goodwill for impairment due to the prolonged downturn in, and outlook for, the European petrochemical and global automotive industries, particularly affecting our Olefins and Polyolefins-Europe, Asia, International (“O&P-EAI”) and Advanced Polymer Solutions (“APS”) segments, combined with the sustained decline in our market capitalization. Our evaluation resulted in the recognition of non-cash goodwill impairments of $400 million and $572 million in our O&P-EAI and APS segments, respectively, in the third quarter of 2025. See Note 9 to the Consolidated Financial Statements.
In the fourth quarter of 2025, we performed a qualitative impairment assessment of our reporting units, which indicated that it was more likely than not that the fair value of our reporting units was greater than their carrying value including goodwill. Accordingly, a quantitative goodwill impairment test was not required.
Intangible Assets
Intangible Assets
Intangible assets consist of emission allowances, customer relationships and software costs. These assets are amortized using the straight-line method over their estimated useful lives or over the term of the related agreement. We evaluate definite-lived intangible assets with the associated long-lived asset group for impairment whenever impairment indicators are present.
Research and Development
Research and Development
Research and development (“R&D”) costs are expensed when incurred. Subsidies for R&D are included in Other income (expense), net. Depreciation expense related to assets employed in R&D is included as a cost of R&D.
Income Taxes
Income Taxes
The income tax for the period comprises current and deferred tax. Income tax is recognized in the Consolidated Statements of Income (Loss), except to the extent that it relates to items recognized in other comprehensive income (loss) or directly in equity. In these cases, the applicable tax amount is recognized in other comprehensive income (loss) or directly in equity, respectively.
Deferred income taxes reflect the tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts recognized for income tax purposes, as well as the net tax effects of net operating loss carryforwards. Valuation allowances are provided against deferred tax assets when it is more likely than not that some portion or all of the deferred tax asset will not be realized.
We recognize uncertain income tax positions in our financial statements when we believe it is more likely than not, based on the technical merits, that the position or a portion thereof will be sustained upon examination. For a position that is more likely than not to be sustained, the benefit recognized is measured at the largest cumulative amount that is greater than 50 percent likely of being realized.
Leases
Leases
Leases with a term longer than 12 months are recorded on the balance sheet as a lease asset and lease liability. If at inception of a contract, a lease is identified, we recognize a lease asset and a corresponding lease liability based on the present value of the lease payments over the lease term, discounted using our incremental borrowing rate, unless an implicit rate is readily determinable. Lease payments include fixed and variable lease components derived from usage or market-based indices, such as the consumer price index. Other variable lease payments may fluctuate for a variety of reasons including usage, output, insurance or taxes. These variable amounts are expensed as incurred and not included in the lease assets or lease liabilities. Options to extend or terminate a lease are reflected in the lease payments and lease term when it is reasonably certain that we will exercise those options. Leases are classified as either finance or operating, with classification affecting the pattern of expense recognition in the Consolidated Statements of Income (Loss). The majority of our leases are operating leases for which we recognize lease expense on a straight-line basis over the lease term. We apply the practical expedient to account for lease and associated non-lease components as a single lease component for all asset classes with the exception of utilities and pipeline assets within major manufacturing equipment. For these assets, non-lease components are separated from lease components and accounted for as normal operating expenses. Leases with an initial term of 12 months or less are recognized in the Consolidated Statements of Income (Loss) on a straight-line basis over the lease term.
Environmental Remediation Costs
Environmental Remediation Costs—Environmental remediation liabilities include liabilities related to sites we currently own, sites we no longer own, as well as sites where we have operated that belong to other parties. Liabilities for anticipated expenditures related to investigation and remediation of contaminated sites are accrued when it is probable a liability has been incurred and the amount of the liability can be reasonably estimated. Only certain post-remediation monitoring costs, the timing of which can be determined with reasonable certainty, are discounted to present value.
Asset Retirement Obligations
Asset Retirement Obligations—At some sites, we are legally obligated to decommission our plants upon site exit. Asset retirement obligations are recorded at the fair value using the present value of the estimated costs to retire the asset at the time the obligation is incurred. That cost, which is capitalized as part of the related long-lived asset, is depreciated on a straight-line basis over the remaining useful life of the related asset. Accretion expense in connection with the discounted liability is recognized over the estimated timeline to settle the obligation. Such depreciation and accretion expenses are included in Cost of sales.
Redeemable Non-controlling Interests
Redeemable Non-controlling Interests
Our redeemable non-controlling interests relate to shares of cumulative perpetual special stock (“redeemable non-controlling interest stock”) issued by our consolidated subsidiary, formerly known as A. Schulman, Inc. (“A. Schulman”). Holders of redeemable non-controlling interest stock are entitled to receive cumulative dividends at the rate of 6% per share and the liquidation preference of $1,000 per share. Redeemable non-controlling interest stock may be redeemed at any time at the discretion of the holders and is reported in the Consolidated Balance Sheets outside of permanent equity. Dividends on these shares are deducted from or added to the amount of Income (loss) attributable to the Company shareholders if and when declared by the Company.
Foreign Currency Translation and Remeasurement
Foreign Currency Translation and Remeasurement
Functional and Reporting Currency—Items included in the financial information of each of LyondellBasell N.V.’s entities are measured using the currency of the primary economic environment in which the entity operates (“the functional currency”) and then translated to the U.S. dollar (“the reporting currency”) as follows:
Assets and liabilities for each balance sheet presented are translated at the closing rate at the date of that balance sheet;
Income and expenses for each income statement are translated at monthly average exchange rates; and
All resulting exchange differences are recognized as a separate component within other comprehensive income (loss) (foreign currency translation adjustments).
Transactions and Balances—Foreign currency transactions are recorded in their respective functional currency using exchange rates prevailing at the dates of the transactions. Exchange gains and losses resulting from the settlement of such transactions and from remeasurement of monetary assets and liabilities denominated in foreign currencies at the balance sheet date are recognized in earnings.
Revenue Recognition
Revenue Recognition
Substantially all our revenues are derived from contracts with customers. We account for contracts when both parties have approved the contract and are committed to perform, the rights of the parties and payment terms have been identified, the contract has commercial substance and collectability is probable.
Revenue is recognized when obligations under the terms of a contract with our customer are satisfied. This generally occurs at the point in time when performance obligations are fulfilled and control transfers to the customer. In most instances, control transfers upon transfer of risk of loss and title to the customer, which usually occurs when we ship products to the customer from our manufacturing facility. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring goods. Customer incentives are generally based on volumes purchased and recognized over the period earned. Sales, value-added, and other taxes that we collect concurrent with revenue-producing activities are excluded from the transaction price as they represent amounts collected on behalf of third parties. We apply the practical expedient to recognize the incremental costs of obtaining a contract as an expense when incurred if the amortization period of the asset that we otherwise would have recognized is one year or less. Shipping and handling costs are treated as a fulfillment cost and not as a separate performance obligation.
We have marketing arrangements to off-take and sell the production of some of our joint ventures in return for a percentage of the price realized on the sales to the end customer. In such arrangements, when we obtain control of the product, revenue and cost of sales are presented on a gross basis. Otherwise, we recognize revenue, net of amounts due to the joint venture, which represents commissions earned.
Payments are typically required within a short period following the transfer of control of the product to the customer. We occasionally require customers to prepay purchases to ensure collectability. Such prepayments do not represent financing arrangements, since payment occurs within a short time frame. We apply the practical expedient which permits us to disregard the effects of a significant financing component when, at contract inception, we expect the period between the payment and fulfillment of the performance obligation will be one year or less.
Contract balances typically arise when a difference in timing between the transfer of control to the customer and receipt of consideration occurs. Our contract liabilities, which are reflected in our Consolidated Financial Statements as Accrued and other current liabilities, and Other liabilities, consist primarily of customer payments for products or services received before the transfer of control to the customer occurs.
Share-Based Compensation
Share-Based Compensation
We grant restricted stock units (“RSUs”), performance share units (“PSUs”), and other cash and stock awards to employees as a form of compensation. Prior to 2024, we also granted stock option awards (“Stock options”). Our share-based compensation awards are accounted for as equity-classified awards with compensation expense based on the grant date fair value and recognized over the vesting period in the income statement. We use a straight-line vesting method for cliff-vested awards and a graded vesting method for ratable-vested awards. We have elected to recognize forfeitures as they occur for stock-based compensation. When options are exercised and awards are paid out, shares are issued from our treasury shares. The holders of unvested RSUs are entitled to nonforfeitable dividend equivalents settled in the form of cash payments, which are recognized as dividends in Retained earnings. Outstanding PSUs accrue dividend equivalent units, which will be converted to shares upon payment at the end of the performance period and are classified as Accrued and other current liabilities and Other liabilities on the Consolidated Balance Sheets. Dividend equivalents for PSUs are also recorded in Retained earnings. See Notes 17 and 20 to the Consolidated Financial Statements for additional information.
Financial Instruments and Hedging Activities
Financial Instruments and Hedging Activities
Pursuant to our risk management policies, we selectively enter into derivative transactions to manage market risk volatility associated with changes in commodity pricing, currency exchange rates and interest rates. Certain derivatives used for this purpose are designated as net investment hedges, cash flow hedges or fair value hedges. Derivative instruments are recorded at fair value on the balance sheet. Gains and losses related to changes in the fair value of derivative instruments not designated as hedges are recorded in earnings.
Cash flows from derivatives designated as hedges are reported in our Consolidated Statements of Cash Flows under the same category as the cash flows from the hedged items unless the derivative contract contains a significant financing element. Cash flows for derivatives with a significant financing element are classified as Cash flows from financing activities. Cash flows related to economic hedges are classified consistent with the cash flows of the economic hedged items.
Net Investment Hedges—We enter into foreign currency derivatives and foreign currency denominated debt to reduce the volatility in shareholders’ equity resulting from changes in currency exchange rates of our foreign subsidiaries with respect to the U.S. dollar. Our foreign currency derivatives consist of cross-currency contracts and forward exchange contracts.
We use the critical terms approach through the application of the spot method to assess hedge effectiveness at least quarterly. For derivatives designated as net investment hedges, gains or losses attributable to changes in spot foreign exchange rates over the designation period are reflected in foreign currency translation adjustments within other comprehensive income (loss). Recognition in earnings is delayed until the net investment is sold or liquidated. At that time, the amount recognized is reported in the same line item as the gain or loss on the liquidation of the hedged foreign operations. For our cross-currency swaps, the associated interest receipts and payments are recorded in Interest expense. For our foreign currency forward contracts, we amortize initial forward point values on a straight-line basis to interest expense over the life of the hedging instrument. We monitor on a quarterly basis for any over-hedged positions requiring de-designation and re-designation of the hedge to remove such over-hedged condition.
Cash Flow Hedges—We enter into cash flow hedges to manage the variability in cash flows of a future transaction. Our cash flow hedges include cross currency swaps, forward starting interest rate swaps and commodity swaps. For derivatives designated as cash flow hedges, the gains and losses are recorded in other comprehensive income (loss) and released to earnings in the same line item and in the same period during which the hedged item affects earnings.
We use the critical terms and the quantitative long-haul methods to assess hedge effectiveness and monitor, at least quarterly, any change in effectiveness.
We have cross-currency swap contracts designated as cash flow hedges to reduce our exposure to the foreign currency exchange risk associated with certain intercompany loans. Under the terms of these contracts, we make interest payments in euros and receive interest in U.S. dollars. Upon the maturities of these contracts, we will pay the principal amount of the loans in euros and receive U.S. dollars from our counterparties.
We enter into forward-starting interest rate contracts to mitigate the risk of adverse changes in benchmark interest rates on future anticipated debt issuances.
We also execute commodity futures, options and swaps to manage the volatility of the commodity price related to anticipated purchases of raw materials and product sales. We enter into over-the-counter commodity swaps and options with one or more counterparties whereby we pay a predetermined fixed price and receive a price based on the average monthly rate of a specified index for the specified nominated volumes.
Fair Value Hedges—We use interest rate swaps as part of our current interest rate risk management strategy to achieve a desired proportion of variable versus fixed rate debt. Under these arrangements, we exchange fixed-rate for floating-rate interest payments to effectively convert our fixed-rate debt to floating-rate debt. For derivatives that have been designated as fair value hedges, the gains and losses of the derivatives and hedged items are recorded in earnings.
We use the long-haul method to assess hedge effectiveness using a regression analysis approach at least quarterly. We perform the regression analysis over an observation period of three years, utilizing data that is relevant to the hedge duration.
Fair Value Measurements
Fair Value Measurements
We categorize assets and liabilities, measured at fair value, into one of three different levels depending on the observability of the inputs employed in the measurement. Level 1 inputs are quoted prices for identical instruments in active markets. Level 2 inputs are quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs or significant value-drivers are observable. Level 3 inputs are model-derived valuations in which one or more significant inputs or significant value-drivers are unobservable.
Fair value measurements are classified according to the lowest level input or value-driver that is significant to the valuation. A measurement may therefore be classified within Level 3 even though there may be significant inputs that are readily observable.
Changes in Fair Value Levels—We review disclosures regarding fair value measurements at least quarterly. If an instrument classified as Level 1 subsequently ceases to be actively traded, it is transferred out of Level 1. In such cases, instruments are reclassified as Level 2, unless the measurement of its fair value requires the use of significant unobservable inputs, in which case it is reclassified as Level 3.
We use the following inputs and valuation techniques to estimate the fair value of our financial instruments disclosed in Note 15 to the Consolidated Financial Statements.
Cross-Currency Swaps—The fair value of our cross-currency swaps is calculated using the present value of future cash flows discounted using observable inputs such as known notional value amounts, yield curves, basis curves, as applicable, and with the foreign currency leg revalued using published spot and forward exchange rates on the valuation date.
Forward-Starting and Fixed-for-Floating Interest Rate Swaps—The fair value of our forward-starting and fixed-for-floating interest rate swaps is calculated using the present value of future cash flows using observable inputs such as benchmark interest rates and market yield curves.
Commodity Derivatives—The fair values of our commodity derivatives are measured using closing market prices of public exchanges and from third-party broker quotes and pricing providers.
The fair value of our commodity swaps classified as Level 2 is determined using a combination of observable and unobservable inputs. The observable inputs consist of future market values of various crude and heavy fuel oils, which are readily available through public data sources. The unobservable input, which is the estimated discount or premium used in the market pricing, is calculated using an internally-developed, multi-linear regression model based on the observable prices of the known components and their relationships to historical prices. A significant change in this unobservable input would not have a material impact on the fair value measurement of our Level 2 commodity swaps.
Forward Exchange Contracts—The fair value of our forward exchange contracts is based on forward market rates.
Equity Securities—The fair value of our investment in equity securities is based on the net asset value provided by the fund administrator.
Short-Term Debt—The fair value of short-term borrowings related to precious metal financing arrangements, accounted for as embedded derivatives, is determined based on the future price of the associated precious metal.
Long-Term Debt—The fair value of our senior and guaranteed notes is calculated using pricing data obtained from well-established and recognized vendors of market data for debt valuations.
Fair Value Measurements - Pension Assets
We use the following inputs and valuation techniques to estimate the fair value of our pension assets disclosed in Note 16 to the Consolidated Financial Statements.
Common and Preferred Stock—Valued at the closing price reported on the market on which the individual securities are traded.
Fixed Income Securities—Certain securities that are not traded on an exchange are valued at the closing price reported by pricing services. Other securities are valued based on yields currently available on comparable securities of issuers with similar credit ratings.
Commingled Funds—Valued based upon the net asset value of units of such commingled trust funds held at year end by the pension plans. Unit values are based on the fair value of the underlying assets of the fund derived from inputs principally from, or corroborated by, observable market data by correlation or other means.
Real Estate Funds—Valued based upon the net asset value of units of the real estate fund or partnership held by the master trust at year end.
Hedge Funds—Valued based upon the unit values of such alternative investments held at year end by the pension plans. Unit values are based on the fair value of the underlying assets of the fund.
Private Equity—Valued based upon the unit values of such alternative investments held at year end by the pension plans. Unit values are based on the fair value of the underlying assets of the fund. Certain securities held in the fund are valued at the closing price reported on an exchange or other established quotation service for over-the-counter securities. Other assets held in the fund are valued based on the most recent financial statements prepared by the fund manager.
Convertible Securities—Valued at the quoted prices for similar assets or liabilities in active markets.
U.S. Government Securities—Certain securities, including Separate Trading of Registered Interest and Principal of Securities, are valued at the closing price reported on the active market on which the individual securities are traded.
Cash and Cash Equivalents—Valued at the quoted prices for identical assets or liabilities in active markets.
Non-U.S. Insurance Arrangements—Valued based upon the estimated cash surrender value of the underlying insurance contract, which is derived from an actuarial determination of the discounted benefits cash flows.
Pension Plans
Pension Plans—We have funded and unfunded defined benefit plans and defined contribution plans. For the defined benefit plans, a projected benefit obligation is calculated annually by independent actuaries using the projected unit credit method. Pension costs primarily represent the increase in the actuarial present value of the obligation for pension benefits based on employee service during the year and the interest on this obligation in respect of employee service in previous years, net of expected return on plan assets.
Actuarial gains and losses arising from experience adjustments and changes in actuarial assumptions are charged or credited to equity and are reflected in Accumulated other comprehensive income (loss) in the period in which they arise.
Other Post-Employment Obligations
Other Post-Employment Obligations—Certain employees are entitled to post-retirement medical benefits upon retirement. The entitlement to these benefits is usually conditional on the employee remaining in service up to retirement age and the completion of a minimum service period. The expected costs of these benefits are accrued over the period of employment applying the same accounting methodology used for defined benefit plans.
Termination Benefits
Termination Benefits—Contractual termination benefits are payable when employment is terminated due to an event specified in the provisions of a social/labor plan or statutory law. A liability is recognized for one-time termination benefits when we are committed to (i) make payments and the number of affected employees and the benefits to be received are known to both parties, and (ii) terminating the employment of current employees according to a detailed formal plan without possibility of withdrawal and can reasonably estimate such amount. Benefits falling due more than 12 months after the balance sheet date are discounted to present value.
Use of Estimates
Use of Estimates
The preparation of financial statements in conformity with generally accepted accounting principles requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates.
Supply Chain Finance Arrangements
Supply Chain Finance Arrangements
We facilitate a voluntary supply chain finance program that provides suppliers, at their sole discretion, the opportunity to sell their receivables due from us to a participating financial intermediary in order to be paid earlier than our contracted payment terms. We are not a party to any agreement between our suppliers and the financial intermediary. When a supplier utilizes the program and receives an early payment from the financial intermediary, the supplier takes a discount on the invoice. We pay the financial intermediary the full amount of the invoice on the contractually agreed upon due date. The majority of the suppliers using the program are on 90 to 120 day payment terms. There is no economic impact to the Company from a supplier’s decision to take an early payment. No guarantees are provided by us or any of our subsidiaries under the program.
Recently Adopted Guidance and Accounting Guidance Issued But Not Adopted
Recently Adopted Guidance
Income Tax Disclosures—In December 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The guidance requires companies to disclose certain specific categories in the rate reconciliation and provide additional information for reconciling items that meet the quantitative threshold of 5% of the expected tax using the applicable statutory income tax rate. There is also a required disclosure to provide the net income taxes paid or received disaggregated by federal, state, and foreign taxes with jurisdictions to be separately disclosed if the jurisdiction is 5% or more of the total net income taxes paid or received. The guidance is effective for annual periods beginning after December 15, 2024. Earlier adoption is permitted. The new guidance has been applied prospectively in 2025. There is no material impact on our Consolidated Financial Statements as the guidance relates only to disclosure.
Accounting Guidance Issued But Not Adopted as of December 31, 2025
Grants—In December 2025, the FASB issued ASU 2025-10, Government Grants (Topic 832): Accounting for Government Grants Received by Business Entities. This ASU provides guidance for recognition, measurement, and presentation of government grants. The guidance is effective for annual reporting periods beginning after December 15, 2028, and interim reporting periods within those annual reporting periods and may be applied using either a modified prospective, a modified retrospective or a retrospective approach. Early adoption is permitted. The adoption of this guidance will not have a material impact on our Consolidated Financial Statements.
Accounting for Software Costs—In September 2025, the FASB issued ASU 2025-06, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software. This guidance amends certain aspects of the accounting for and disclosure of software costs, including when entities start capitalizing eligible costs. This guidance also supersedes existing guidance on website development costs. The guidance is effective for annual reporting periods beginning after December 15, 2027, and interim periods within those annual reporting periods. Early adoption is permitted. We are currently assessing the impact the adoption will have on our Consolidated Financial Statements.
Measurement of Credit Losses—In July 2025, the FASB issued ASU 2025-05, Financial InstrumentsCredit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets. This guidance allows entities to elect a practical expedient related to the estimation of expected credit losses for current accounts receivable and current contract assets that arise from transactions accounted for under ASC 606. The guidance is effective for annual reporting periods beginning after December 15, 2025, and interim periods within those annual reporting periods. Early adoption is permitted. The adoption of this guidance will not have a material impact on our Consolidated Financial Statements.
Expense Disaggregation Disclosures—In November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses. This guidance requires incremental disclosures about specific expense categories, including but not limited to, purchases of inventory, employee compensation, depreciation, amortization and selling expenses. The amendments are effective for fiscal years beginning after December 15, 2026, and for interim periods within fiscal years beginning after December 15, 2027. While permitted, we do not plan to early adopt this guidance. The guidance may be applied either prospectively or retrospectively. The adoption of this guidance will not have a material impact on our Consolidated Financial Statements as the guidance relates only to disclosure.
v3.25.4
Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2025
Accounting Policies [Abstract]  
Supplier Finance Program
The following table summarizes the activity in our supply chain financing program included in Accounts Payable-Trade:
Year Ended December 31,
Millions of dollars20252024
Confirmed obligations outstanding at the beginning of the year$141 $65 
Invoices confirmed during the year790 767 
Confirmed invoices paid during the year(823)(691)
Confirmed obligations outstanding at the end of the year$108 $141 
v3.25.4
Discontinued Operations (Tables)
12 Months Ended
Dec. 31, 2025
Discontinued Operations and Disposal Groups [Abstract]  
Disposal Groups, Including Discontinued Operations The following table presents components of Income (loss) from discontinued operations, net of tax:
Year Ended December 31,
Millions of dollars202520242023
Sales and other operating revenues$2,083 $8,559 $9,714 
Cost of sales2,032 8,639 9,357 
Other impairments— — 11 
Selling, general and administrative expenses20 18 
Operating income (loss)45 (100)328 
Other income (expense), net16 (5)
Provision for (benefit from) income taxes14 (19)68 
Income (loss) from discontinued operations, net of tax$47 $(75)$255 
v3.25.4
Assets Held for Sale (Tables)
12 Months Ended
Dec. 31, 2025
Assets Held For Sale [Abstract]  
Summary of Balance Sheet Disclosure
The following table summarizes the assets and liabilities classified as held for sale in the Consolidated Balance Sheets:
Millions of dollarsDecember 31, 2025
ASSETS
Accounts receivable - Trade, net$272 
Inventories407 
Prepaid expense and other current assets22 
Operating lease assets12 
Equity investments28 
Other assets16 
Total assets held for sale$757 
LIABILITIES
Accounts payable - Trade$225 
Accrued and other current liabilities129 
Operating lease liabilities
Other liabilities272 
Deferred income taxes30 
Total liabilities held for sale$665 
v3.25.4
Revenues (Tables)
12 Months Ended
Dec. 31, 2025
Revenue from Contract with Customer [Abstract]  
Disaggregation of revenue
Revenues disaggregated by key products are summarized below:
Year Ended December 31,
Millions of dollars202520242023
Sales and other operating revenues:
Olefins and co-products$4,184 $5,061 $4,874 
Polyethylene7,203 7,583 7,587 
Polypropylene5,849 6,287 5,642 
Propylene oxide and derivatives2,150 2,357 2,287 
Oxyfuels and related products4,828 5,074 5,650 
Intermediate chemicals1,886 2,693 2,896 
Compounding and solutions3,457 3,616 3,686 
Other596 723 714 
Total$30,153 $33,394 $33,336 
The following table presents our revenues disaggregated by geography, based upon the location of the customer:
Year Ended December 31,
Millions of dollars202520242023
Sales and other operating revenues:
United States$11,059 $12,587 $12,386 
Germany2,202 2,410 2,547 
China1,782 2,375 2,164 
Mexico1,557 1,729 1,500 
Italy1,321 1,418 1,365 
Japan1,261 1,338 1,749 
France1,161 1,069 1,091 
Poland790 923 905 
The Netherlands731 724 805 
Other8,289 8,821 8,824 
Total$30,153 $33,394 $33,336 
v3.25.4
Related Party Transactions (Tables)
12 Months Ended
Dec. 31, 2025
Related Party Transactions [Abstract]  
Summary of related party transactions
These transactions are summarized as follows:
 Year Ended December 31,
Millions of dollars202520242023
The Company billed related parties for:
Sales of products$572 $634 $614 
Shared service agreements10 
Total$581 $644 $618 
Related parties billed the Company for:
Sales of products$3,442 $3,899 $3,673 
Shared service agreements38 40 79 
Total$3,480 $3,939 $3,752 
v3.25.4
Inventories (Tables)
12 Months Ended
Dec. 31, 2025
Inventory Disclosure [Abstract]  
Schedule of Inventory
Inventories consisted of the following components at December 31:
Millions of dollars20252024
Finished goods$2,238 $3,014 
Work-in-process69 145 
Raw materials and supplies1,226 1,499 
Total inventories$3,533 $4,658 
v3.25.4
Property, Plant and Equipment, Goodwill and Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2025
Property, Plant and Equipment, Goodwill and Intangible Assets [Abstract]  
Components of property, plant and equipment, at cost, and the related accumulated depreciation
Property, Plant and Equipment—The components of property, plant and equipment, at cost, and the related accumulated depreciation are as follows at December 31:
Millions of dollarsEstimated Useful Life (years)20252024
Land$292 $280 
Major manufacturing equipment2515,009 14,303 
Buildings302,629 2,508 
Light equipment and instrumentation5-203,957 3,471 
Office furniture1536 21 
Major turnarounds4-72,085 1,803 
Information system equipment3-560 70 
Construction in progress1,734 1,718 
Total property, plant and equipment25,802 24,174 
Less accumulated depreciation(9,969)(9,108)
Property, plant and equipment, net$15,833 $15,066 
Components of intangible assets, at cost, and the related amortization
Intangible Assets—The components of identifiable intangible assets, at cost, and the related accumulated amortization are as follows at December 31:
 20252024
Millions of dollarsCostAccumulated
Amortization
NetCostAccumulated
Amortization
Net
Emission allowances$750 $(535)$215 $744 $(525)$219 
Customer relationships128 (56)72 309 (125)184 
Software costs231 (113)118 188 (86)102 
Other704 (659)45 728 (656)72 
Total intangible assets$1,813 $(1,363)$450 $1,969 $(1,392)$577 
Depreciation and amortization by major asset class
Depreciation and Amortization Expense—Depreciation and amortization expense is summarized as follows:
 Year Ended December 31,
Millions of dollars202520242023
Property, plant and equipment$1,180 $1,173 $1,145 
PO Joint Ventures and Louisiana Joint Venture125 118 148 
Emission allowances
Customer relationships17 21 20 
Software costs28 23 17 
Other32 29 38 
Total depreciation and amortization$1,390 $1,372 $1,376 
Changes in asset retirement obligations
The changes in our asset retirement obligations are as follows:
 Year Ended December 31,
Millions of dollars20252024
Beginning balance$315 $311 
Liabilities settled(118)(6)
Changes in estimates(1)
Accretion expense
Effects of exchange rate changes(2)
Reclassified to liabilities held for sale
(8)— 
Ending balance$203 $315 
Schedule of goodwill
Goodwill—The changes in the carrying amount of goodwill in each of the Company’s reportable segments for the years ended December 31, 2025 and 2024 were as follows:
Millions of dollarsO&P -
Americas
O&P -
EAI
I&DAPSTechnologyTotal
December 31, 2023$477 $380 $215 $567 $$1,647 
Foreign currency translation adjustments(5)(25)(6)(50)— (86)
December 31, 2024472 355 209 517 1,561 
Divestitures
— — — (2)— (2)
Impairment charges— (400)— (572)— (972)
Foreign currency translation adjustments45 16 57 — 121 
December 31, 2025$475 $— $225 $— $$708 
Schedule of asset impairments
Total impairment charges for the year ended December 31, 2025 consist of the following:
Year Ended December 31, 2025
Millions of dollarsO&P–
America
O&P–
EAI
APSTotal
Impairments:
Goodwill$— $400 $572 $972 
Intangible assets— — 111 111 
Property, plant and equipment56 99 164 
Equity investments— — 
Total$$460 $782 $1,251 
v3.25.4
Equity Investments (Tables)
12 Months Ended
Dec. 31, 2025
Equity Method Investments and Joint Ventures [Abstract]  
Schedule of equity method investments
Our significant equity investments are as follows at December 31:
Percent of Ownership20252024
Olefins and Polyolefins-Americas
Louisiana Joint Venture50.00 %50.00 %
Indelpro S.A. de C.V. 49.00 %49.00 %
Olefins and Polyolefins-Europe, Asia, International
Basell Orlen Polyolefins Sp. Z.o.o. 50.00 %50.00 %
PolyMirae Co. Ltd. 50.00 %50.00 %
Bright LyondellBasell Petrochemical Co. Ltd.50.00 %50.00 %
National Petrochemical Industrial Company35.00 %35.00 %
HMC Polymers Company Ltd. 28.56 %28.56 %
Al-Waha Petrochemicals Ltd. 25.00 %25.00 %
Saudi Ethylene & Polyethylene Company Ltd. 25.00 %25.00 %
Saudi Polyolefins Company25.00 %25.00 %
Intermediates and Derivatives
U.S. PO Joint Venture60.62 %60.62 %
European PO JV50.00 %50.00 %
Ningbo ZRCC Lyondell Chemical Co. Ltd. 26.65 %26.65 %
Schedule of changes in equity investments
The following table summarizes changes in our equity investments:
Year Ended December 31,
Millions of dollars20252024
Beginning balance$4,121 $3,907 
Capital contributions25 113 
Loss from equity investments(12)(217)
Acquisition of equity investments14 551 
Distribution of earnings, net of tax(92)(122)
Depreciation of PO Joint Ventures and Louisiana Joint Venture(125)(118)
Impairments(4)(13)
Currency exchange effects46 (26)
Other(10)46 
Ending balance$3,963 $4,121 
Schedule of balance sheet information of equity investments
Summarized balance sheet information of our investments accounted for under the equity method (presented on a 100% basis) at December 31 is as follows:
Millions of dollars20252024
Current assets$2,826 $3,230 
Noncurrent assets8,553 8,517 
Total assets11,379 11,747 
Current liabilities1,549 1,637 
Noncurrent liabilities1,414 1,064 
Net assets$8,416 $9,046 
Schedule of income statement information of equity method investments
Summarized income statement information of our investments accounted for under the equity method (presented on a 100% basis) is as follows:
 Year Ended December 31,
Millions of dollars202520242023
Revenues$8,862 $13,113 $12,540 
Cost of sales(8,534)(12,669)(12,044)
Gross profit328 444 496 
Net operating expenses(856)(614)(514)
Operating loss(528)(170)(18)
Interest income24 26 23 
Interest expense(53)(148)(131)
Foreign currency translation(17)(1)
Other expense, net(5)(3)(23)
Loss before income taxes(559)(312)(150)
(Provision for) benefit from income taxes(61)(252)22 
Net loss$(620)$(564)$(128)
v3.25.4
Prepaid Expenses, Other Current Assets and Other Assets (Tables)
12 Months Ended
Dec. 31, 2025
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Schedule of prepaid expenses, other current assets and other assets disclosure
The components of Prepaid expenses and other current assets were as follows at December 31:
Millions of dollars20252024
Income tax receivable$181 $79 
VAT receivables116 179 
Advances to suppliers71 83 
Financial derivatives40 210 
Prepaid insurance31 36 
Renewable identification numbers— 127 
Other173 214 
Total prepaid expenses and other current assets$612 $928 
The components of Other assets were as follows at December 31:
Millions of dollars20252024
Income tax receivable$228 $142 
Deferred tax assets212 259 
Pension assets74 56 
Company-owned life insurance46 46 
Financial derivatives75 
Other103 110 
Total other assets$667 $688 
v3.25.4
Accrued and Other Current Liabilities (Tables)
12 Months Ended
Dec. 31, 2025
Payables and Accruals [Abstract]  
Schedule of accrued liabilities
Accrued and other current liabilities consisted of the following components at December 31:
Millions of dollars20252024
Payroll and benefits$414 $517 
Operating lease liabilities370 355 
Taxes other than income taxes183 199 
Income taxes145 311 
Interest144 127 
Financial derivatives122 71 
Product sales rebates115 132 
Contract liabilities113 110 
Asset retirement obligations54 113 
Renewable identification numbers— 132 
Other296 289 
Total accrued and other current liabilities$1,956 $2,356 
v3.25.4
Debt (Tables)
12 Months Ended
Dec. 31, 2025
Debt Disclosure [Abstract]  
Schedule of long-term debt
Long-term loans, notes and other debt, net of unamortized discount, debt issuance cost and cumulative fair value hedging adjustments, consisted of the following at December 31:
Millions of dollars20252024
Senior Notes due 2055, $1,000 million, 4.625% ($15 million of discount; $10 million of debt issuance cost)
$975 $975 
Guaranteed Notes due 2027, $300 million, 8.1%
300 300 
Issued by LYB International Finance B.V.:
Guaranteed Notes due 2043, $750 million, 5.25% ($17 million of discount; $6 million of debt issuance cost)
727 726 
Guaranteed Notes due 2044, $1,000 million, 4.875% ($9 million of discount; $8 million of debt issuance cost)
983 983 
Issued by LYB International Finance II B.V.:
Guaranteed Notes due 2026, €500 million, 0.875%
585 515 
Guaranteed Notes due 2027, $1,000 million, 3.5% ($1 million of discount; $1 million of debt issuance cost)
590 584 
Guaranteed Notes due 2031, €500 million, 1.625% ($3 million of discount; $2 million of debt issuance cost)
577 514 
Issued by LYB International Finance III, LLC:
Guaranteed Notes due 2025, $500 million, 1.25%
— 487 
Guaranteed Notes due 2030, $500 million, 3.375% ($1 million of debt issuance cost)
142 123 
Guaranteed Notes due 2030, $500 million, 2.25% ($2 million of discount; $2 million of debt issuance cost)
481 473 
Guaranteed Notes due 2031, $500 million, 5.125% ($1 million of discount; $4 million of debt issuance cost)
495 — 
Guaranteed Notes due 2033, $500 million, 5.625% ($4 million of debt issuance cost)
496 495 
Guaranteed Notes due 2034, $750 million, 5.5% ($5 million of discount, $6 million of debt issuance cost)
739 738 
Guaranteed Notes due 2035, $500 million, 6.15% ($1 million of discount, $5 million of debt issuance cost)
494 — 
Guaranteed Notes due 2036, $1,000 million, 5.875% ($7 million of discount, $9 million of debt issuance cost)
984 — 
Guaranteed Notes due 2040, $750 million, 3.375% ($1 million of discount; $6 million of debt issuance cost)
743 742 
Guaranteed Notes due 2049, $1,000 million, 4.2% ($13 million of discount; $10 million of debt issuance cost)
977 976 
Guaranteed Notes due 2050, $1,000 million, 4.2% ($6 million of discount; $10 million of debt issuance cost)
971 982 
Guaranteed Notes due 2051, $1,000 million, 3.625% ($2 million of discount; $9 million of debt issuance cost)
952 918 
Guaranteed Notes due 2060, $500 million, 3.8% ($4 million of discount; $5 million of debt issuance cost)
487 482 
Other14 17 
Total12,712 11,030 
Less current maturities(588 )(498 )
Long-term debt$12,124 $10,532 
Fair value hedging adjustments associated with the fair value hedge accounting of our fixed-for-floating interest rate swaps for the applicable periods are as follows:
Millions of dollarsGains (Losses)Cumulative Fair Value Hedging Adjustments Included in Carrying Amount of Debt
Year Ended December 31,December 31,
2025202420252024
Guaranteed Notes due 2025, 1.25%
$(4)$(5)$— $
Guaranteed Notes due 2026, 0.875%
(2)(4)
Guaranteed Notes due 2027, 3.5%
(5)— 
Guaranteed Notes due 2030, 3.375%
(20)(2)18 
Guaranteed Notes due 2030, 2.25%
(7)14 21 
Guaranteed Notes due 2031, 1.625%
(2)
Guaranteed Notes due 2050, 4.2%
11 (7)13 
Guaranteed Notes due 2051, 3.625%
(33)(2)37 70 
Guaranteed Notes due 2060, 3.8%
(5)
Total$(61)$(13)$73 $134 
v3.25.4
Leases (Tables)
12 Months Ended
Dec. 31, 2025
Leases [Abstract]  
Maturities of operating lease liabilities
Maturities of operating lease liabilities as of December 31, 2025, are as follows:
Millions of dollars
2026$418 
2027335 
2028240 
2029157 
2030129 
Thereafter797 
Total lease payments2,076 
Less: Imputed interest(379)
Present value of lease liabilities$1,697 
v3.25.4
Financial Instruments and Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2025
Financial Instruments and Fair Value Measurements [Abstract]  
Summary of fair value of outstanding financial instruments
Financial Instruments Measured at Fair Value on a Recurring Basis—The following table summarizes financial instruments outstanding for the periods presented that are measured at fair value on a recurring basis:
Fair Value
Millions of dollarsDecember 31, 2025December 31, 2024Balance Sheet Classification
Assets—
Derivatives designated as hedges:
Commodities$— $14 Prepaid expenses and other current assets
CommoditiesOther assets
Foreign currency19 146 Prepaid expenses and other current assets
Foreign currency— 66 Other assets
Interest rates16 16 Prepaid expenses and other current assets
Derivatives not designated as hedges:
Commodities18 Prepaid expenses and other current assets
Commodities— Other assets
Foreign currency— 16 Prepaid expenses and other current assets
Total$44 $285 
Liabilities—
Derivatives designated as hedges:
Commodities$33 $14 Accrued and other current liabilities
CommoditiesOther liabilities
Foreign currency15 Accrued and other current liabilities
Foreign currency199 — Other liabilities
Interest rates27 36 Accrued and other current liabilities
Interest rates79 146 Other liabilities
Derivatives not designated as hedges:
Commodities42 11 Accrued and other current liabilities
Foreign currencyAccrued and other current liabilities
Total$408 $222 
Summary of the carrying value and estimated fair value of non-derivative financial instruments
Financial Instruments Not Measured at Fair Value on a Recurring Basis—The following table presents the carrying value and estimated fair value of our Short-term precious metal financings and Long-term debt:
 December 31, 2025December 31, 2024
 Carrying
Value
Fair
Value
Carrying
Value
Fair
Value
Millions of dollars
Precious metal financings$226 $263 $119 $122 
Long-term debt12,113 10,501 10,521 9,048 
Total$12,339 $10,764 $10,640 $9,170 
Summary of commodity derivatives
The following table presents the notional amounts of our outstanding commodity derivative instruments:
Notional Amount
Millions of unitsDecember 31, 2025December 31, 2024Unit of MeasureMaturity Date
Derivatives designated as hedges:
Natural gas51 62 MMBtu
2026 to 2028
Ethane13 14 Bbl2026 to 2028
Power— MWhs
2026 to 2028
Derivatives not designated as hedges:
Ethane— Bbl2026
Other commoditiesBbl2026
Summary of interest rate derivatives
The following table presents the notional amounts of our outstanding interest rate derivative instruments:
Notional Amount
Millions of dollarsDecember 31, 2025December 31, 2024Maturity Date
Fair value hedges$1,885 $2,158 2026to2031
Summary of foreign currency derivatives
The following table presents the notional amounts of our outstanding foreign currency derivative instruments:
Notional Amount
Millions of dollarsDecember 31, 2025December 31, 2024Maturity Date
Net investment hedges$2,465 $3,256 2027to2032
Cash flow hedges294 300 2027
Not designated295 772 2026
Summary of the impact of financial instruments on earnings and other comprehensive income
Impact on Earnings and Other Comprehensive Income (Loss)—The following tables summarize the pre-tax effect of derivative instruments recorded in Accumulated other comprehensive income (“AOCI”), the gains (losses) reclassified from AOCI to earnings and additional gains (losses) recognized directly in earnings:
 Effect of Financial Instruments
 Year Ended December 31, 2025
Balance SheetIncome Statement
Millions of dollarsGain (Loss)
Recognized
in AOCI
Gain (Loss)
Reclassified from AOCI to Income
Additional
Gain (Loss)
Recognized
in Income
Income Statement
Classification
Derivatives designated as hedges:
Commodities$(60)$22 $— Cost of sales
Foreign currency(384)36 45 Interest expense
Interest rates— 13 Interest expense
Derivatives not designated as hedges:
Commodities— — (44)Cost of sales
Commodities— — Income (loss) from discontinued operations, net of tax
Foreign currency— — (78)Other income (expense), net
Total$(444)$62 $(56)
 Year Ended December 31, 2024
Balance SheetIncome Statement
Millions of dollarsGain (Loss)
Recognized
in AOCI
Gain (Loss)
Reclassified from AOCI to Income
Additional
Gain (Loss)
Recognized
in Income
Income Statement
Classification
Derivatives designated as hedges:
Commodities$(2)$$— Sales and other operating revenues
Commodities11 129 — Cost of sales
Foreign currency206 (35)59 Interest expense
Interest rates11 (64)Interest expense
Derivatives not designated as hedges:
Commodities— — (2)Sales and other operating revenues
Commodities— — 23 Cost of sales
Commodities— — 11 Income (loss) from discontinued operations, net of tax
Foreign currency— — 43 Other income (expense), net
Total$226 $102 $70 
 Year Ended December 31, 2023
Balance SheetIncome Statement
Millions of dollarsGain (Loss)
Recognized
in AOCI
Gain (Loss)
Reclassified from AOCI to Income
Additional
Gain (Loss)
Recognized
in Income
Income Statement
Classification
Derivatives designated as hedges:
Commodities$(2)$— $— Sales and other operating revenues
Commodities(157)33 — Cost of sales
Foreign currency(142)31 70 Interest expense
Interest rates17 (20)Interest expense
Derivatives not designated as hedges:
Commodities— — Sales and other operating revenues
Commodities— — Cost of sales
Commodities— — 52 Income (loss) from discontinued operations, net of tax
Foreign currency— — (29)Other income (expense), net
Total$(284)$69 $79 
v3.25.4
Pension and Other Post-retirement Benefits (Tables)
12 Months Ended
Dec. 31, 2025
Retirement Benefits [Abstract]  
Reconciliation of projected benefit obligations, schedule of plan assets and the funded status of defined benefit and other postretirement benefit plans
Pension Benefits—The following tables provide a reconciliation of projected benefit obligations, plan assets and the funded status of our U.S. and non-U.S. defined benefit pension plans:
 Year Ended December 31,
 20252024
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.
Change in benefit obligation:
Benefit obligation, beginning of period$1,232 $1,389 $1,155 $1,363 
Service cost54 25 52 21 
Interest cost59 54 62 52 
Actuarial (gain) loss(13)(141)60 88 
Plan amendments(5)— — 
Benefits paid(128)(71)(97)(59)
Participant contributions— — 
Settlement(43)(3)— (3)
Curtailment— — — 
Termination benefits— — — 
Foreign exchange effects— 159 — (75)
Benefit obligation, end of period1,168 1,415 1,232 1,389 
Change in plan assets:
Fair value of plan assets, beginning of period1,036 770 960 705 
Actual return on plan assets49 (52)130 112 
Company contributions20 59 43 51 
Benefits paid(128)(71)(97)(59)
Participant contributions— — 
Settlement(43)(3)— (3)
Foreign exchange effects— 81 — (38)
Fair value of plan assets, end of period934 786 1,036 770 
Funded status, end of period$(234)$(629)$(196)$(619)
The following tables provide a reconciliation of benefit obligations of our unfunded other post-retirement benefit plans:
 Year Ended December 31,
 20252024
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.
Change in benefit obligation:
Benefit obligation, beginning of period$139 $52 $142 $39 
Service cost— — 
Interest cost
Actuarial (gain) loss (5)15 
Benefits paid(22)(2)(24)(1)
Participant contributions— — 
Foreign exchange effects— — (4)
Benefit obligation, end of period134 55 139 52 
Change in plan assets:
Fair value of plan assets, beginning of period— — — — 
Employer contributions18 19 
Participant contributions— — 
Benefits paid(22)(2)(24)(1)
Fair value of plan assets, end of period— — — — 
Funded status, end of period$(134)$(55)$(139)$(52)
Schedule of amounts recognized in the consolidated balance sheets
Amounts recognized in the Consolidated Balance Sheets consist of the following:
 December 31, 2025December 31, 2024
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.
Prepaid benefit cost, long-term$— $74 $— $56 
Accrued benefit liability, current— (37)— (30)
Accrued benefit liability, long-term(234)(666)(196)(645)
Funded status, end of period$(234)$(629)$(196)$(619)
Amounts recognized in the Consolidated Balance Sheets are as follows:
 December 31, 2025December 31, 2024
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.
Accrued benefit liability, current$(13)$(2)$(13)$(1)
Accrued benefit liability, long-term(121)(53)(126)(51)
Funded status, end of period$(134)$(55)$(139)$(52)
Schedule of amounts recognized in accumulated other comprehensive income (loss)
Amounts recognized in Accumulated other comprehensive loss include the following:
 December 31, 2025December 31, 2024
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.
Actuarial and investment loss$278 $70 $276 $94 
Prior service (credit) cost(4)23 — 23 
Balance, end of period$274 $93 $276 $117 
Amounts recognized in Accumulated other comprehensive loss are as follows:
 December 31, 2025December 31, 2024
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.
Actuarial and investment income$48 $11 $61 $
Prior service cost — (1)— (1)
Balance, end of period$48 $10 $61 $
Schedule of accumulated benefit obligations for defined benefit plans
The following additional information is presented for our U.S. and non-U.S. pension plans:
 December 31, 2025December 31, 2024
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.
Accumulated benefit obligation for defined benefit plans$1,150 $1,298 $1,204 $1,268 
Schedule of projected benefit obligations in excess of the fair value of assets
Pension plans with projected benefit obligations in excess of the fair value of assets are summarized as follows:
 December 31, 2025December 31, 2024
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.
Projected benefit obligations$1,168 $820 $1,232 $793 
Fair value of assets934 117 1,036 118 
Schedule of accumulated benefit obligations in excess of the fair value of assets
Pension plans with accumulated benefit obligations in excess of the fair value of assets are summarized as follows:
 December 31, 2025December 31, 2024
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.
Accumulated benefit obligations$1,150 $621 $1,201 $593 
Fair value of assets934 1,033 
Schedule of the components of net periodic costs
Components of net periodic pension costs for our U.S. and non-U.S. plans are as follows:
 U.S. Plans
 Year Ended December 31,
Millions of dollars202520242023
Service cost$49 $47 $45 
Interest cost52 55 50 
Expected return on plan assets(63)(58)(62)
Actuarial loss amortization16 19 17 
Net periodic benefit cost$54 $63 $50 
 Non-U.S. Plans
 Year Ended December 31,
Millions of dollars202520242023
Service cost$25 $21 $22 
Interest cost54 52 51 
Expected return on plan assets(28)(28)(28)
Prior service cost amortization
Actuarial (gain) loss amortization(1)
Net periodic benefit cost$59 $53 $47 
Schedule of actual and target allocation of plan assets
The actual and target asset allocations for our plans are as follows:
 20252024
ActualTargetActualTarget
Canada
Fixed incomeN/AN/A100 %100 %
United Kingdom—Lyondell Chemical Plans
Equity securities26 %25 %25 %25 %
Fixed income74 %75 %75 %75 %
United Kingdom—Basell Plans
Equity securities27 %25 %25 %25 %
Fixed income73 %75 %75 %75 %
United Kingdom—A. Schulman Plans
Equity securities and growth assets27 %25 %26 %25 %
Fixed income and matching assets73 %75 %74 %75 %
United States
Equity securities41 %40 %39 %40 %
Fixed income47 %45 %48 %45 %
Alternatives12 %15 %13 %15 %
Schedule of future expected benefit payments
As of December 31, 2025, future expected benefit payments by our pension plans which reflect expected future service, as appropriate, are as follows:
Millions of dollarsU.S.Non-U.S.
2026$127 $73 
202793 73 
202897 75 
202996 77 
203095 79 
2031 through 2035490 414 
As of December 31, 2025, future expected benefit payments by our other post-retirement benefit plans, which reflect expected future service, as appropriate, were as follows:
Millions of dollarsU.S.Non-U.S.
2026$13 $
202713 
202813 
202913 
203012 
2031 through 203553 10 
Schedule of assumptions used
The weighted average assumptions used in determining the net benefit liabilities for our pension plans were as follows at December 31:
 20252024
 U.S.Non-U.S.U.S.Non-U.S.
Discount rate5.43 %4.37 %5.35 %3.66 %
Rate of compensation increase4.66 %3.37 %4.66 %3.36 %
Cash balance interest credit rate4.67 %— %4.36 %— %
The weighted average assumptions used in determining net benefit costs for our pension plans were as follows:
 Year Ended December 31,
 202520242023
 U.S.Non-U.S.U.S.Non-U.S.U.S.Non-U.S.
Discount rate5.35 %3.66 %5.80 %4.00 %5.50 %3.99 %
Expected return on plan assets7.25 %3.44 %7.25 %4.14 %7.25 %3.57 %
Rate of compensation increase4.66 %3.36 %4.68 %3.58 %4.65 %2.66 %
The following tables set forth the assumed health care cost trend rates for our U.S. and Non-U.S. Plans:
 U.S. Plans
 December 31,
 20252024
Immediate trend rate7.0 %6.5 %
Ultimate trend rate (the rate to which the cost trend rate is assumed to decline)4.5 %4.5 %
Year that the rate reaches the ultimate trend rate20362033
Non-U.S. Plans
CanadaFrance
December 31,December 31,
2025202420252024
Immediate trend rate4.5 %4.5 %5.0 %5.0 %
Ultimate trend rate (the rate to which the cost trend rate is assumed to decline)4.5 %4.5 %5.0 %5.0 %
Year that the rate reaches the ultimate trend rate— — — — 
The weighted average assumptions used in determining the net benefit liabilities for our other post-retirement benefit plans were as follows:
 December 31,
 20252024
 U.S.Non-U.S.U.S.Non-U.S.
Discount rate5.08 %4.01 %5.24 %3.53 %
Rate of compensation increase4.12 %— 4.09 %— 
The weighted average assumptions used in determining the net benefit costs for our other post-retirement benefit plans were as follows:
 Year Ended December 31,
 202520242023
 U.S.Non-U.S.U.S.Non-U.S.U.S.Non-U.S.
Discount rate5.24 %3.53 %5.74 %4.36 %5.44 %3.95 %
Rate of compensation increase4.09 %— 4.13 %— 4.16 %— 
Schedule of pension investments measured at fair value
The pension investments that are measured at fair value are summarized below:
 December 31, 2025
Millions of dollarsFair ValueLevel 1Level 2Level 3
U.S.
Common and preferred stock$59 $59 $— $— 
Commingled funds measured at net asset value432 
Fixed income securities97 — 97 — 
Real estate funds measured at net asset value57 
Hedge funds measured at net asset value15 
Private equity measured at net asset value39 
U.S. government securities217 217 — — 
Cash and cash equivalents17 17 — — 
Total U.S. Pension Assets$933 $293 $97 $— 
 December 31, 2025
Millions of dollarsFair ValueLevel 1Level 2Level 3
Non-U.S.
Insurance arrangements$610 $— $— $610 
Commingled funds measured at net asset value172 
Cash and cash equivalents— — 
Total Non-U.S. Pension Assets$783 $$— $610 
 December 31, 2024
Millions of dollarsFair ValueLevel 1Level 2Level 3
U.S.
Common and preferred stock$64 $64 $— $— 
Commingled funds measured at net asset value459 
Fixed income securities97 — 97 — 
Real estate funds measured at net asset value63 
Hedge funds measured at net asset value20 
Private equity measured at net asset value46 
U.S. government securities253 253 — — 
Cash and cash equivalents26 26 — — 
Total U.S. Pension Assets$1,028 $343 $97 $— 
 December 31, 2024
Millions of dollarsFair ValueLevel 1Level 2Level 3
Non-U.S.
Insurance arrangements$531 $— $— $531 
Commingled funds measured at net asset value237 
Cash and cash equivalents— — 
Total Non-U.S. Pension Assets$769 $$— $531 
Company contributions to employee savings plans
The following table provides the Company contributions to the Employee Savings Plans:
 Company Contributions
 202520242023
Millions of dollarsU.S.Non-U.S.U.S.Non-U.S.U.S.Non-U.S.
Employee Savings Plans$58 $11 $56 $11 $54 $
v3.25.4
Incentive and Share-Based Compensation (Tables)
12 Months Ended
Dec. 31, 2025
Share-Based Payment Arrangement [Abstract]  
Summary of compensation expense and associated tax benefits
Total share-based compensation expense and the associated tax benefits are as follows:
Year Ended December 31,
Millions of dollars202520242023
Compensation Expense:
Restricted stock units$70 $60 $44 
Stock options10 
Performance share units20 27 37 
Total$91 $91 $91 
Tax Benefit:
Restricted stock units$16 $14 $10 
Stock options— 
Performance share units
Total$21 $21 $21 
Summary of restricted stock unit activity
The following table summarizes unvested RSU activity:
Number of
Units
 (in thousands)
Weighted Average
 Grant Date Fair Value
(per share)
Outstanding at January 1, 20251,236 $95.09 
Granted897 70.49 
Vested(698)91.76 
Forfeited(93)84.27 
Outstanding at December 31, 20251,342 $81.13 
Weighted average fair value assumptions used to value stock options
The weighted average fair value of Stock options granted and the assumptions used in estimating those fair values are as follows:
Year Ended December 31,
2023
Weighted average fair value$24.85
Fair value assumptions:
Dividend yield5.0 %
Expected volatility
39.9-40.2%
Risk-free interest rate
3.5-4.7%
Weighted average expected term, in years5.7
Summary of stock option activity
The following table summarizes Stock option activity:
Number of
Shares
(in thousands)
Weighted
Average
Exercise
Price
Weighted
Average
Remaining
Term
Aggregate
Intrinsic
Value
(millions of
dollars)
Outstanding at January 1, 20251,943$91.40 
Forfeited(8)94.46 
Expired(126)98.24 
Outstanding at December 31, 20251,809 $90.91 4.1 years$— 
Exercisable at December 31, 20251,678 $90.62 3.9 years$— 
Weighted average fair value assumptions used to value PSUs
The weighted average fair value and the assumptions used in estimating those fair value using a Monte-Carlo simulation are as follows:
Year Ended December 31,
 202520242023
Weighted average fair value$98.74 $133.75 $128.95
Fair value assumptions:
Expected volatility of LyondellBasell N.V. common stock25.00 %
28.60%
38.04%
Expected volatility of peer companies
23.85-43.97%
24.68-43.42%
22.82-52.73%
Average correlation coefficient of peer companies0.54
0.56
0.52
Risk-free interest rate4.01%
4.47%
4.39%
Summary of performance share unit activity
The following table summarizes unvested PSU activity:
Number of
Units
 (in thousands)
Weighted Average
 Grant Date Fair Value (per share)
Outstanding at January 1, 2025989 $101.94 
Granted609 71.27 
Vested (258)93.84 
Forfeited(133)86.72 
Outstanding at December 31, 20251,207 $89.87 
v3.25.4
Income Taxes (Tables)
12 Months Ended
Dec. 31, 2025
Income Tax Disclosure [Abstract]  
Schedule of components of the provision for income taxes
The significant components of the provision for income taxes are as follows:
 Year Ended December 31,
Millions of dollars202520242023
Current:
U.S. federal$116 $419 $117 
Non-U.S.145 198 160 
State(7)48 24 
Total current254 665 301 
Deferred:
U.S. federal(205)(140)154 
Non-U.S.11 (279)(36)
State10 13 14 
Total deferred(184)(406)132 
Provision for income taxes before tax effects of other comprehensive income70 259 433 
Tax effects of elements of other comprehensive income:
Pension and post-retirement liabilities19 (1)(36)
Financial derivatives(8)38 (29)
Foreign currency translation(91)44 (28)
Total income tax expense (benefit) in comprehensive income$(10)$340 $340 
Schedule of income before taxes and schedule of effective income tax reconciliation
The following table reconciles the expected tax expense (benefit) at the U.S. statutory federal income tax rate to the total income tax provision disaggregated by nature of reconciling items:
Year Ended December 31,
Millions of dollars2025
Income (loss) from continuing operations before income taxes:
U.S.$(219)
Non-U.S.(496)
Total$(715)
Income tax at U.S. statutory rate$(150)21.0 %
State and local income tax, net of federal income tax effect14 (2.0)%
Effect of cross-border tax laws:
Change in deferred tax on outside basis differences(13)1.8 %
Deemed income inclusion12 (1.7)%
Deduction of non-U.S. taxes paid(12)1.7 %
Tax credits(5)0.7 %
Nontaxable or nondeductible items:
Export incentive(46)6.4 %
Other13 (1.8)%
Other adjustments(2)0.3 %
Foreign tax effects:
China
Nondeductible impairment11 (1.5)%
Other adjustments(1.2)%
France
Nondeductible impairment17 (2.4)%
Statutory income tax rate differential(1.1)%
Germany
State and local income taxes(33)4.6 %
Tax refund claim(24)3.4 %
Changes in tax laws or rates enacted(24)3.4 %
Changes in valuation allowances17 (2.4)%
Statutory income tax rate differential11 (1.5)%
Other adjustments(3)0.4 %
Italy
Nondeductible impairment(1.1)%
Other adjustments(0.4)%
Malta
Statutory income tax rate differential(101)14.1 %
Mexico
Nondeductible impairment30 (4.2)%
Other adjustments(0.6)%
The Netherlands
Nondeductible impairment125 (17.5)%
Foreign currency gain or loss63 (8.8)%
Changes in valuation allowances13 (1.8)%
Nondeductible items10 (1.4)%
Statutory income tax rate differential(1.3)%
United Kingdom
Changes in valuation allowances85 (11.9)%
Other adjustments(1.3)%
Other foreign jurisdictions(1.0)%
Changes in unrecognized tax benefits(0.7)%
Provision for income taxes$70 (9.8)%
For the years ended December 31, 2024 and 2023, prior to the adoption of ASU 2023-09, the effective income tax rate differs from the statutory federal income tax rate as follows:
 
Year Ended December 31,
Millions of dollars20242023
Income (loss) from continuing operations before income taxes:
U.S.$1,783 $1,630 
Non-U.S.(82)669 
Total$1,701 $2,299 
Income tax at U.S. statutory rate$358 $483 
Increase (reduction) resulting from:
Non-U.S. income/(loss) taxed at different statutory rates(102)
Return to accrual adjustments(26)(22)
State income taxes, net of federal benefit55 34 
Exempt income(101)(203)
Uncertain tax positions18 21 
Patent box ruling— (31)
Nondeductible impairments28 62 
Audit settlement— 46 
Foreign currency gain or loss(27)
Cross border tax effects19 14 
Other, net37 17 
Provision for income taxes$259 $433 
Schedule of deferred tax assets and liabilities
The deferred tax effects of tax loss, credit and interest carryforwards (“tax attributes”) and the tax effects of temporary differences between the tax basis of assets and liabilities and their reported amounts in the Consolidated Financial Statements, reduced by a valuation allowance where appropriate, are presented below:
 December 31,
Millions of dollars20252024
Deferred tax liabilities:
Accelerated tax depreciation$2,342 $2,342 
Investment in joint venture partnerships416 455 
Inventory101 194 
Operating lease assets342 330 
Other liabilities53 78 
Total deferred tax liabilities$3,254 $3,399 
Deferred tax assets:
Tax attributes$672 $420 
Employee benefit plans186 248 
Operating lease liabilities380 387 
Other assets205 203 
Total deferred tax assets1,443 1,258 
Deferred tax asset valuation allowances(293)(135)
Net deferred tax assets1,150 1,123 
Net deferred tax liabilities$2,104 $2,276 
Balance sheet classification is presented in the following table:
 December 31,
Millions of dollars20252024
Deferred tax assets—long-term$212 $259 
Deferred tax liabilities—long-term2,316 2,535 
Net deferred tax liabilities$2,104 $2,276 
Schedule of the expiration of the tax attributes and the related deferred tax assets
The scheduled expiration of the tax attributes and the related deferred tax assets, before valuation allowance, as of December 31, 2025 are as follows:
Millions of dollarsTax AttributesDeferred Tax on Tax Attributes
2026$23 $
202732 
202830 
202937 
203027 
Thereafter758 51 
Indefinite2,235 599 
Total$3,142 $672 
Schedule of deferred tax assets of tax attributes by jurisdiction
The tax attributes are primarily related to operations in Germany, the United States, the United Kingdom, France, and The Netherlands. The related deferred tax assets by primary jurisdictions are shown below:
 December 31,
Millions of dollars202520242023
Germany$215 $107 $
United States128 114 151 
United Kingdom112 105 91 
France109 21 23 
The Netherlands67 35 18 
Other41 38 21 
Total$672 $420 $307 
Schedule of valuation allowance by jurisdiction
A summary of the valuation allowances by primary jurisdiction is shown below, reflecting the valuation allowances for all the net deferred tax assets, including deferred tax assets for tax attributes and other temporary differences.
 December 31,
Millions of dollars202520242023
United Kingdom$115 $30 $30 
Germany101 43 
United States35 24 15 
The Netherlands21 
France— 21 23 
Other21 12 
Total$293 $135 $78 
Schedule of unrecognized tax benefits
The following table presents a reconciliation of the beginning and ending amounts of unrecognized tax benefits included in the Consolidated Balance Sheets:
 Year Ended December 31,
Millions of dollars202520242023
Unrecognized tax benefit, beginning of period$236 $288 $271 
Additions for tax positions of current year— 14 37 
Additions for tax positions of prior years128 15 
Reductions for tax positions of prior years(3)(15)(22)
Reductions resulting from the lapse of statutes of limitations(49)— — 
Settlements (payments/refunds)(73)(66)— 
Unrecognized tax benefit, end of period$239 $236 $288 
Summary of income tax examinations
A summary of the years open to examination in our primary jurisdictions is as follows:
JurisdictionOpen Tax Years
France2020 and later
Germany2008 and later
Italy2014 and later
The Netherlands2018 and later
United Kingdom2024 and later
United States2014 and later
Schedule of income taxes paid (net of refunds)
The following is a supplemental schedule of income taxes paid (net of refunds) disaggregated by federal, state, and non-U.S.:
Year Ended December 31,
Millions of dollars2025
Net income taxes paid:
U.S. federal$307 
U.S. state32 
Non-U.S.
France(26)
The Netherlands24 
Germany(20)
Hong Kong23 
Other53 
Total net income taxes paid$393 
v3.25.4
Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2025
Commitments and Contingencies Disclosure [Abstract]  
Schedule of environmental loss contingencies
The following table summarizes the activity in our accrued environmental liability:
 Year Ended December 31,
Millions of dollars20252024
Beginning balance$140 $124 
Changes in estimates45 29 
Amounts paid(10)(10)
Foreign exchange effects(3)
Other(3)— 
Ending balance$178 $140 
v3.25.4
Shareholders' Equity and Redeemable Non-controlling Interests (Tables)
12 Months Ended
Dec. 31, 2025
Shareholders' Equity and Redeemable Non-controlling Interests [Abstract]  
Dividends declared
Dividend Distributions—The following table summarizes the dividends paid to common shareholders in the periods presented:
Millions of dollars, except per share amountsDividend Per
Ordinary
Share
Aggregate
Dividends
Paid
Date of Record
For the year 2025:
March$1.34 $433 March 10, 2025
June1.37 445 June 2, 2025
September1.37 443 August 25, 2025
December1.37 443 December 1, 2025
$5.45 $1,764 
For the year 2024:
March$1.25 $408 March 4, 2024
June1.34 438 June 3, 2024
September 1.34 437 August 26, 2024
December1.34 437 December 2, 2024
$5.27 $1,720 
Schedule of share repurchase programs
The following table summarizes our share repurchase activity for the periods presented:
Millions of dollars, except shares and per share amountsShares
Repurchased
Average
Purchase
Price
Total Purchase Price, Including Commissions and Fees
For the year 2025:
2024 Share Repurchase Authorization3,037,987 $66.01 $201 
3,037,987 $66.01 $201 
For the year 2024:
2024 Share Repurchase Authorization2,236,348 $88.42 $198 
2,236,348 $88.42 $198 
For the year 2023:
2022 Share Repurchase Authorization1,365,898 $88.98 $122 
2023 Share Repurchase Authorization983,309 90.99 89 
2,349,207 $89.82 $211 
Schedule of changes in ordinary and treasury shares outstanding during the period
Ordinary Shares—The changes in the outstanding amounts of ordinary shares are as follows:
 Year Ended December 31,
 202520242023
Ordinary shares outstanding:
Beginning balance323,889,832 324,483,402 325,723,567 
Share-based compensation621,601 1,278,115 793,984 
Employee stock purchase plan611,323 364,663 315,058 
Purchase of ordinary shares(3,037,987)(2,236,348)(2,349,207)
Ending balance322,084,769 323,889,832 324,483,402 
Treasury Shares—The changes in the amounts of treasury shares held by the Company are as follows:
 Year Ended December 31,
 202520242023
Ordinary shares held as treasury shares:
Beginning balance16,532,666 15,939,096 14,698,931 
Share-based compensation(621,601)(1,278,115)(793,984)
Employee stock purchase plan(611,323)(364,663)(315,058)
Purchase of ordinary shares3,037,987 2,236,348 2,349,207 
Ending balance18,337,729 16,532,666 15,939,096 
Schedule of accumulated other comprehensive income (loss)
Accumulated Other Comprehensive Loss—The components of, and after-tax changes in, Accumulated other comprehensive loss as of and for the years ended December 31, 2025, 2024 and 2023 are presented in the following table:
Foreign currency translation adjustments below include currency translation adjustments as well as gains (losses) on net investment hedges; the associated tax benefits or expenses are calculated separately for each component.
Millions of dollarsFinancial
Derivatives
Defined
Benefit
Pension
and Other
Post-retirement
Benefit Plans
Foreign
Currency
Translation
Adjustments
Total
Balance, December 31, 2022$(146)$(182)$(1,044)$(1,372)
Other comprehensive income (loss) before reclassifications(178)(142)45 (275)
Tax benefit before reclassifications47 38 28 113 
Amounts reclassified from accumulated other comprehensive loss69 — 78 
Tax expense(18)(2)— (20)
Net other comprehensive income (loss)(80)(97)73 (104)
Balance, December 31, 2023$(226)$(279)$(971)$(1,476)
Other comprehensive income (loss) before reclassifications$51 $(21)$(125)$(95)
Tax (expense) benefit before reclassifications(13)(44)(52)
Amounts reclassified from accumulated other comprehensive loss102 18 — 120 
Tax expense(25)(4)— (29)
Net other comprehensive income (loss)115 (2)(169)(56)
Balance, December 31, 2024$(111)$(281)$(1,140)$(1,532)
Other comprehensive income (loss) before reclassifications$(92)$52 $108 $68 
Tax (expense) benefit before reclassifications23 (15)91 99 
Amounts reclassified from accumulated other comprehensive loss62 12 — 74 
Tax expense(15)(4)— (19)
Net other comprehensive income (loss)(22)45 199 222 
Balance, December 31, 2025$(133)$(236)$(941)$(1,310)
Reclassification out of accumulated other comprehensive income (loss)
The amounts reclassified out of each component of Accumulated other comprehensive loss are as follows:
Millions of dollarsYear Ended December 31,Affected Line Items on the Consolidated Statements of Income
202520242023
Reclassification adjustments for:
Financial derivatives:
Commodities$— $$— Sales and other operating expenses
Commodities22 129 33 Cost of sales
Foreign currency36 (35)31 Interest expense
Interest ratesInterest expense
Income tax (expense) benefit(15)(25)(18)Provision for income taxes
Financial derivatives, net of tax47 77 51 
Amortization of defined pension items:
Settlement gain(1)— — Other income (expense), net
Actuarial loss13 15 Other income (expense), net
Prior service costOther income (expense), net
Curtailment gain(3)— — Other income (expense), net
Income tax expense(4)(4)(2)Provision for income taxes
Defined pension items, net of tax14 
Total reclassifications, before tax74 120 78 
Income tax expense(19)(29)(20)Provision for income taxes
Total reclassifications, after tax$55 $91 $58 Amount included in net income
v3.25.4
Per Share Data (Tables)
12 Months Ended
Dec. 31, 2025
Earnings Per Share [Abstract]  
Schedule of earnings per share, basic and diluted
Earnings (loss) per share data is as follows:
 Year Ended December 31,
 202520242023
 ContinuingDiscontinuedContinuingDiscontinuedContinuingDiscontinued
Millions of dollarsOperationsOperationsOperationsOperationsOperationsOperations
Net income (loss)$(785)$47 $1,442 $(75)$1,866 $255 
Dividends on redeemable non-controlling interests(7)— (7)— (7)— 
Net income attributable to participating securities(7)— (6)— (7)— 
Net income (loss) attributable to ordinary shareholders—basic and diluted$(799)$47 $1,429 $(75)$1,852 $255 
Millions of shares,
except per share amounts
Basic weighted average common stock outstanding322 322 325 325 325 325 
Effect of dilutive securities— — 
Potential dilutive shares322 322 326 326 326 326 
Earnings (loss) per share:
Basic$(2.48)$0.14 $4.40 $(0.24)$5.70 $0.78 
Diluted$(2.48)$0.14 $4.39 $(0.24)$5.68 $0.78 
v3.25.4
Segment and Related Information (Tables)
12 Months Ended
Dec. 31, 2025
Segment Reporting [Abstract]  
Schedule of segment reporting information, by segment
Summarized financial information concerning reportable segments is shown in the following tables for the periods presented:
 Year Ended December 31, 2025
 O&P -
Americas
O&P -
EAI
I&DAPSTechnologyOtherTotal
Millions of dollars
Sales and other operating revenues:
Customers$7,669 $9,611 $8,953 $3,457 $463 $— $30,153 
Intersegment2,132 616 116 15 86 (2,965)— 
9,801 10,227 9,069 3,472 549 (2,965)30,153 
Less:
Cost of sales8,873 9,963 8,347 3,074 280 (2,961)27,576 
Impairments460 — 782 — — 1,251 
(Income) loss from equity investments(37)52 (3)— — — 12 
Loss on sale of business— — — — — 
Other items464 412 256 344 132 25 1,633 
Add:
Depreciation and amortization expense652 203 409 83 43 — 1,390 
EBITDA$1,144 $(457)$878 $(651)$180 $(29)$1,065 
Capital expenditures$793 $461 $433 $99 $92 $— $1,878 
 Year Ended December 31, 2024
Millions of dollarsO&P -
Americas
O&P -
EAI
I&DAPSTechnologyOtherTotal
Sales and other operating revenues:
Customers$8,791 $10,188 $10,219 $3,616 $580 $— $33,394 
Intersegment2,742 679 205 18 91 (3,735)— 
11,533 10,867 10,424 3,634 671 (3,735)33,394 
Less:
Cost of sales9,261 10,529 9,208 3,271 211 (3,730)28,750 
Impairments— 892 55 — — 949 
(Income) loss from equity investments(13)217 13 — — — 217 
Gain on sale of business— — (284)— — — (284)
Other items459 440 222 344 123 30 1,618 
Add:
Depreciation and amortization expense619 220 401 90 42 — 1,372 
EBITDA$2,445 $(991)$1,664 $54 $379 $(35)$3,516 
Capital expenditures$635 $525 $445 $105 $95 $$1,808 
 Year Ended December 31, 2023
Millions of dollarsO&P -
Americas
O&P -
EAI
I&DAPSTechnologyOtherTotal
Sales and other operating revenues:
Customers$8,333 $9,822 $10,917 $3,686 $578 $— $33,336 
Intersegment2,947 657 169 12 85 (3,870)— 
11,280 10,479 11,086 3,698 663 (3,870)33,336 
Less:
Cost of sales9,146 10,165 9,383 3,393 210 (3,862)28,435 
Impairments25 38 192 252 — — 507 
(Income) loss from equity investments(49)55 13 — — 20 
Other items442 437 262 312 119 48 1,620 
Add:
Depreciation and amortization expense587 207 443 98 41 — 1,376 
EBITDA$2,303 $(9)$1,679 $(162)$375 $(56)$4,130 
Capital expenditures$480 $273 $590 $75 $69 $12 $1,499 
Reconciliation of EBITDA to income (loss) from continuing operations before income taxes
A reconciliation of EBITDA to Income (loss) from continuing operations before income taxes is shown in the following table for each of the periods presented. Indirect SG&A expense reallocation to continuing operations represents corporate SG&A expenses that were previously allocated to the refining segment:
 Year Ended December 31,
Millions of dollars202520242023
EBITDA:
Total segment EBITDA$1,094 $3,551 $4,186 
Other EBITDA(29)(35)(56)
Less:
Depreciation and amortization expense(1,390)(1,372)(1,376)
Interest expense(487)(481)(477)
Indirect SG&A expense reallocation to continuing operations— (112)(107)
Add:
Interest income97 150 129 
Income (loss) from continuing operations before income taxes$(715)$1,701 $2,299 
Reconciliation of segment assets including goodwill
The following assets are summarized and reconciled to consolidated totals in the following table:
Millions of dollarsO&P -
Americas
O&P -
EAI
I&DAPSTechnologyTotal
December 31, 2025
Property, plant and equipment, net$6,775 $1,642 $6,123 $607 $686 $15,833 
Equity investments1,958 1,658 346 — 3,963 
Goodwill475 — 225 — 708 
December 31, 2024
Property, plant and equipment, net$6,592 $1,553 $5,670 $655 $596 $15,066 
Equity investments2,011 1,732 377 — 4,121 
Goodwill472 355 209 517 1,561 
Schedule of long-lived assets by geographic areas
Long-lived assets include Property, plant and equipment, net, Intangible assets, net and Equity investments, see Notes 9 and 10 to the Consolidated Financial Statements. The following long-lived assets data is based upon the location of the assets:
 December 31,
Millions of dollars20252024
Long-lived assets:
United States$14,551 $14,456 
Germany2,012 1,691 
The Netherlands830 784 
Italy496 399 
Mexico226 257 
France184 171 
Poland168 173 
China120 124 
Thailand116 123 
Other1,543 1,586 
Total$20,246 $19,764 
v3.25.4
Summary of Significant Accounting Policies - Narrative (Details)
$ / shares in Units, T in Thousands, $ in Millions
3 Months Ended 12 Months Ended
Sep. 30, 2025
USD ($)
Mar. 31, 2023
USD ($)
Dec. 31, 2025
USD ($)
T
$ / shares
Dec. 31, 2024
USD ($)
T
Dec. 31, 2023
USD ($)
T
Summary Of Significant Accounting Policies [Line Items]          
Goodwill impairments     $ 972 $ 0 $ 252
Special stock, cumulative dividend rate (in percent)     0.06    
Special stock, liquidation preference per share (usd per share) | $ / shares     $ 1,000    
Supplier finance program obligation, current in Accounts payable-Trade     $ 108 $ 141 $ 65
Minimum          
Summary Of Significant Accounting Policies [Line Items]          
Supplier finance program, payment timing, period     90 days    
Maximum          
Summary Of Significant Accounting Policies [Line Items]          
Supplier finance program, payment timing, period     120 days    
APS          
Summary Of Significant Accounting Policies [Line Items]          
Goodwill impairments $ 572 $ 252 $ 572    
O&P - EAI          
Summary Of Significant Accounting Policies [Line Items]          
Goodwill impairments $ 400   $ 400    
Louisiana Joint Venture          
Summary Of Significant Accounting Policies [Line Items]          
Ownership percentage in the joint venture (in percent)     50.00% 50.00%  
Product offtake (in tons) | T     1,000 1,100 1,200
Total PO Joint Ventures          
Summary Of Significant Accounting Policies [Line Items]          
Product offtake (in tons) | T     1,900 2,000 2,200
U.S. PO Joint Venture          
Summary Of Significant Accounting Policies [Line Items]          
Joint venture partner right to annual in-kind propylene oxide production (in tons) | T     680    
Ownership percentage in the joint venture (in percent)     60.62% 60.62%  
v3.25.4
Summary of Significant Accounting Policies - Supplier Finance Program (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Accounting Policies [Abstract]    
Supplier Finance Program, Obligation, Statement of Financial Position [Extensible Enumeration] Accounts Payable, Current Accounts Payable, Current
Supplier Finance Program, Obligation [Roll Forward]    
Confirmed obligations outstanding at the beginning of the year $ 141 $ 65
Invoices confirmed during the year 790 767
Confirmed invoices paid during the year (823) (691)
Confirmed obligations outstanding at the end of the year $ 108 $ 141
v3.25.4
Discontinued Operations (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Discontinued Operations [Line Items]      
Income (loss) from discontinued operations, net of tax $ 47 $ (75) $ 255
Discontinued Operations, Disposed of by Means Other than Sale      
Discontinued Operations [Line Items]      
Sales and other operating revenues 2,083 8,559 9,714
Cost of sales 2,032 8,639 9,357
Other impairments 0 0 11
Selling, general and administrative expenses 6 20 18
Operating income (loss) 45 (100) 328
Other income (expense), net 16 6 (5)
Provision for (benefit from) income taxes 14 (19) 68
Income (loss) from discontinued operations, net of tax $ 47 $ (75) $ 255
v3.25.4
Assets Held for Sale - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Additional disclosures by disposal groups [Line Items]    
Disposal Group, Not Discontinued Operation, Gain (Loss) On Disposal, Statement Of Income, Extensible List Not Disclosed Flag   false
Other impairment charges   $ 164
O&P - EAI    
Additional disclosures by disposal groups [Line Items]    
Other impairment charges   56
Level 2 | O&P - EAI    
Additional disclosures by disposal groups [Line Items]    
Other impairment charges   56
European Assets | Held-for-Sale    
Additional disclosures by disposal groups [Line Items]    
Exit costs incurred   36
European Assets | Held-for-Sale | Minimum    
Additional disclosures by disposal groups [Line Items]    
Expected cost   100
European Assets | Held-for-Sale | Maximum    
Additional disclosures by disposal groups [Line Items]    
Expected cost   $ 150
European Assets | Held-for-Sale | Forecast    
Additional disclosures by disposal groups [Line Items]    
Transfer of net working capital $ 340  
Cash contribution 300  
Equity method investment, net 10  
European Assets | Held-for-Sale | Forecast | Minimum    
Additional disclosures by disposal groups [Line Items]    
Gain (loss) on disposal (700)  
Foreign currency translation adjustment gain (loss) (300)  
Pension and other liabilities 150  
European Assets | Held-for-Sale | Forecast | Maximum    
Additional disclosures by disposal groups [Line Items]    
Gain (loss) on disposal (900)  
Foreign currency translation adjustment gain (loss) (400)  
Pension and other liabilities $ 250  
v3.25.4
Assets Held for Sale - Balance Sheet Disclosure (Details) - European Assets - Held-for-Sale
$ in Millions
Dec. 31, 2025
USD ($)
ASSETS  
Accounts receivable - Trade, net $ 272
Inventories 407
Prepaid expense and other current assets 22
Operating lease assets 12
Equity investments 28
Other assets 16
Total assets held for sale 757
LIABILITIES  
Accounts payable - Trade 225
Accrued and other current liabilities 129
Operating lease liabilities 9
Other liabilities 272
Deferred income taxes 30
Total liabilities held for sale $ 665
v3.25.4
Revenues - Narrative (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Revenue from Contract with Customer [Abstract]    
Contract with customer, liability $ 125 $ 117
v3.25.4
Revenues - Key product revenues (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disaggregation of revenue [Line Items]      
Revenues $ 30,153 $ 33,394 $ 33,336
Olefins and co-products      
Disaggregation of revenue [Line Items]      
Revenues 4,184 5,061 4,874
Polyethylene      
Disaggregation of revenue [Line Items]      
Revenues 7,203 7,583 7,587
Polypropylene      
Disaggregation of revenue [Line Items]      
Revenues 5,849 6,287 5,642
Propylene oxide and derivatives      
Disaggregation of revenue [Line Items]      
Revenues 2,150 2,357 2,287
Oxyfuels and related products      
Disaggregation of revenue [Line Items]      
Revenues 4,828 5,074 5,650
Intermediate chemicals      
Disaggregation of revenue [Line Items]      
Revenues 1,886 2,693 2,896
Compounding and solutions      
Disaggregation of revenue [Line Items]      
Revenues 3,457 3,616 3,686
Other      
Disaggregation of revenue [Line Items]      
Revenues $ 596 $ 723 $ 714
v3.25.4
Revenues - Geographic location (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disaggregation of revenue [Line Items]      
Revenues $ 30,153 $ 33,394 $ 33,336
United States      
Disaggregation of revenue [Line Items]      
Revenues 11,059 12,587 12,386
Germany      
Disaggregation of revenue [Line Items]      
Revenues 2,202 2,410 2,547
China      
Disaggregation of revenue [Line Items]      
Revenues 1,782 2,375 2,164
Mexico      
Disaggregation of revenue [Line Items]      
Revenues 1,557 1,729 1,500
Italy      
Disaggregation of revenue [Line Items]      
Revenues 1,321 1,418 1,365
Japan      
Disaggregation of revenue [Line Items]      
Revenues 1,261 1,338 1,749
France      
Disaggregation of revenue [Line Items]      
Revenues 1,161 1,069 1,091
Poland      
Disaggregation of revenue [Line Items]      
Revenues 790 923 905
The Netherlands      
Disaggregation of revenue [Line Items]      
Revenues 731 724 805
Other      
Disaggregation of revenue [Line Items]      
Revenues $ 8,289 $ 8,821 $ 8,824
v3.25.4
Related Party Transactions - Summary of Transaction (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Related party [Line Items]      
The Company billed related parties for: $ 30,153 $ 33,394 $ 33,336
Related parties billed the Company for: 30,573 31,476 30,611
Sales of products      
Related party [Line Items]      
The Company billed related parties for: 581 644 618
Related parties billed the Company for: 3,480 3,939 3,752
Sales of products | Sales of products—      
Related party [Line Items]      
The Company billed related parties for: 572 634 614
Related parties billed the Company for: 3,442 3,899 3,673
Sales of products | Shared service agreements—      
Related party [Line Items]      
Shared service agreements billed to related parties 9 10 4
Related parties billed the Company for: $ 38 $ 40 $ 79
v3.25.4
Accounts Receivable - Narrative (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Receivables [Abstract]    
Allowance for credit losses, receivables $ 3 $ 4
v3.25.4
Inventories - Schedule of Components (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Inventory Disclosure [Abstract]    
Finished goods $ 2,238 $ 3,014
Work-in-process 69 145
Raw materials and supplies 1,226 1,499
Total inventories $ 3,533 $ 4,658
v3.25.4
Inventories - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Inventory Disclosure [Abstract]    
Percentage of inventories valued using the LIFO method (in percent) 77.00% 75.00%
Excess of inventories at estimated net realizable value over LIFO cost after lower of cost or market charges $ 495 $ 1,310
Effect of LIFO inventory liquidation on income $ 196  
Per diluted share (in dollars per share) $ 0.60  
v3.25.4
Property, Plant and Equipment, Goodwill and Intangible Assets - Components of property, plant and equipment, at cost, and the related accumulated depreciation (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment $ 25,802 $ 24,174
Less accumulated depreciation (9,969) (9,108)
Property, plant and equipment, net 15,833 15,066
Land    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment $ 292 280
Major manufacturing equipment    
Property, Plant and Equipment [Line Items]    
Estimated Useful Life (years) 25 years  
Total property, plant and equipment $ 15,009 14,303
Buildings    
Property, Plant and Equipment [Line Items]    
Estimated Useful Life (years) 30 years  
Total property, plant and equipment $ 2,629 2,508
Light equipment and instrumentation    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment $ 3,957 3,471
Light equipment and instrumentation | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated Useful Life (years) 5 years  
Light equipment and instrumentation | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated Useful Life (years) 20 years  
Office furniture    
Property, Plant and Equipment [Line Items]    
Estimated Useful Life (years) 15 years  
Total property, plant and equipment $ 36 21
Major turnarounds    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment $ 2,085 1,803
Major turnarounds | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated Useful Life (years) 4 years  
Major turnarounds | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated Useful Life (years) 7 years  
Information system equipment    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment $ 60 70
Information system equipment | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated Useful Life (years) 3 years  
Information system equipment | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated Useful Life (years) 5 years  
Construction in progress    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment $ 1,734 $ 1,718
v3.25.4
Property, Plant and Equipment, Goodwill and Intangible Assets - Narrative (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 12 Months Ended
Jan. 01, 2023
May 31, 2024
Sep. 30, 2025
Dec. 31, 2023
Mar. 31, 2023
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Property, Plant and Equipment [Line Items]                
Proceeds from sale of business           $ 4 $ 689 $ 0
Gain (loss) on sale of business           (6) 284 0
Capitalized interest           30 19 7
Intangible assets future amortization expense year 1           61    
Intangible assets future amortization expense year 2           44    
Intangible assets future amortization expense year 3           32    
Intangible assets future amortization expense year 4           23    
Intangible assets future amortization expense year 5           23    
Asset retirement obligations       $ 311   203 315 311
Accumulated impairment losses to goodwill           1,224    
Other impairments           1,251 949 518
Other impairment charges           164    
Goodwill impairments           972 0 252
Impairments           4 13  
Level 3                
Property, Plant and Equipment [Line Items]                
Other impairments     $ 1,182          
European PO JV                
Property, Plant and Equipment [Line Items]                
Impairments       192        
Refining                
Property, Plant and Equipment [Line Items]                
Asset retirement obligations           154 262  
O&P - EAI                
Property, Plant and Equipment [Line Items]                
Gain (loss) on sale of business           0 0  
Accumulated impairment losses to goodwill           400    
Other impairments           460 892 38
Other impairment charges           56    
Goodwill transfers $ 269              
Goodwill impairments     400     400    
Impairments           4    
O&P - EAI | European Strategic Review                
Property, Plant and Equipment [Line Items]                
Other impairment charges             837  
APS                
Property, Plant and Equipment [Line Items]                
Gain (loss) on sale of business           (6) 0  
Accumulated impairment losses to goodwill       $ 252   824 252 252
Other impairments           782 55 252
Other impairment charges           99 55  
Goodwill transfers (584)              
Goodwill impairments     $ 572   $ 252 572    
Impairments           0    
O&P - Americas                
Property, Plant and Equipment [Line Items]                
Gain (loss) on sale of business           0 0  
Other impairments           9 0 25
Other impairment charges           9    
Goodwill transfers $ 315              
Goodwill impairments           0    
Impairments           0    
I&D                
Property, Plant and Equipment [Line Items]                
Gain (loss) on sale of business           0 284  
Other impairments           0 $ 2 $ 192
Goodwill impairments           $ 0    
I&D | Disposal group disposed of by sale not discontinued operations | Ethylene Oxide & Derivatives (“EO&D”) Business                
Property, Plant and Equipment [Line Items]                
Proceeds from sale of business   $ 689            
Gain (loss) on sale of business   $ 284            
v3.25.4
Property, Plant and Equipment, Goodwill and Intangible Assets - Components of intangible assets, at cost, and the related amortization (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Finite-lived intangible assets [Line Items]    
Cost $ 1,813 $ 1,969
Accumulated Amortization (1,363) (1,392)
Net 450 577
Emission allowances    
Finite-lived intangible assets [Line Items]    
Cost 750 744
Accumulated Amortization (535) (525)
Net 215 219
Customer relationships    
Finite-lived intangible assets [Line Items]    
Cost 128 309
Accumulated Amortization (56) (125)
Net 72 184
Software costs    
Finite-lived intangible assets [Line Items]    
Cost 231 188
Accumulated Amortization (113) (86)
Net 118 102
Other    
Finite-lived intangible assets [Line Items]    
Cost 704 728
Accumulated Amortization (659) (656)
Net $ 45 $ 72
v3.25.4
Property, Plant and Equipment, Goodwill and Intangible Assets - Depreciation and amortization by major asset class (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Depreciation and amortization [Line Items]      
Total depreciation and amortization $ 1,390 $ 1,372 $ 1,376
Property, plant and equipment      
Depreciation and amortization [Line Items]      
Total depreciation and amortization 1,180 1,173 1,145
PO Joint Ventures and Louisiana Joint Venture      
Depreciation and amortization [Line Items]      
Total depreciation and amortization 125 118 148
Emission allowances      
Depreciation and amortization [Line Items]      
Total depreciation and amortization 8 8 8
Customer relationships      
Depreciation and amortization [Line Items]      
Total depreciation and amortization 17 21 20
Software costs      
Depreciation and amortization [Line Items]      
Total depreciation and amortization 28 23 17
Other      
Depreciation and amortization [Line Items]      
Total depreciation and amortization $ 32 $ 29 $ 38
v3.25.4
Property, Plant and Equipment, Goodwill and Intangible Assets - Changes in asset retirement obligations (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Asset retirement obligation [Roll Forward]    
Beginning balance $ 315 $ 311
Liabilities settled (118) (6)
Changes in estimates (1) 3
Accretion expense 9 9
Effects of exchange rate changes 6 (2)
Reclassified to liabilities held for sale (8) 0
Ending balance $ 203 $ 315
v3.25.4
Property, Plant and Equipment, Goodwill and Intangible Assets - Schedule of goodwill (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Sep. 30, 2025
Mar. 31, 2023
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Goodwill [Roll Forward]          
Beginning balance     $ 1,561 $ 1,647  
Divestitures     (2)    
Impairment charges     (972) 0 $ (252)
Foreign currency translation adjustments     121 (86)  
Ending balance     708 1,561 1,647
O&P - Americas          
Goodwill [Roll Forward]          
Beginning balance     472 477  
Divestitures     0    
Impairment charges     0    
Foreign currency translation adjustments     3 (5)  
Ending balance     475 472 477
O&P - EAI          
Goodwill [Roll Forward]          
Beginning balance     355 380  
Divestitures     0    
Impairment charges $ (400)   (400)    
Foreign currency translation adjustments     45 (25)  
Ending balance     0 355 380
I&D          
Goodwill [Roll Forward]          
Beginning balance     209 215  
Divestitures     0    
Impairment charges     0    
Foreign currency translation adjustments     16 (6)  
Ending balance     225 209 215
APS          
Goodwill [Roll Forward]          
Beginning balance     517 567  
Divestitures     (2)    
Impairment charges $ (572) $ (252) (572)    
Foreign currency translation adjustments     57 (50)  
Ending balance     0 517 567
Technology          
Goodwill [Roll Forward]          
Beginning balance     8 8  
Divestitures     0    
Impairment charges     0    
Foreign currency translation adjustments     0 0  
Ending balance     $ 8 $ 8 $ 8
v3.25.4
Property, Plant and Equipment, Goodwill and Intangible Assets - Impairment charges by segment (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Sep. 30, 2025
Mar. 31, 2023
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Segment Reporting Information [Line Items]          
Goodwill     $ 972 $ 0 $ 252
Intangible assets     111    
Property, plant and equipment     164    
Impairments     4 13  
Total     1,251 949 518
O&P– America          
Segment Reporting Information [Line Items]          
Goodwill     0    
Intangible assets     0    
Property, plant and equipment     9    
Impairments     0    
Total     9 0 25
O&P - EAI          
Segment Reporting Information [Line Items]          
Goodwill $ 400   400    
Intangible assets     0    
Property, plant and equipment     56    
Impairments     4    
Total     460 892 38
APS          
Segment Reporting Information [Line Items]          
Goodwill $ 572 $ 252 572    
Intangible assets     111    
Property, plant and equipment     99 55  
Impairments     0    
Total     $ 782 $ 55 $ 252
v3.25.4
Equity Investments - Equity method investments (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
May 31, 2024
Schedule of equity method investments [Line Items]        
Acquisition of equity investments $ 14 $ 551 $ 102  
Louisiana Joint Venture        
Schedule of equity method investments [Line Items]        
Equity investment, ownership percentage (in percent) 50.00% 50.00%    
Indelpro S.A. de C.V.        
Schedule of equity method investments [Line Items]        
Equity investment, ownership percentage (in percent) 49.00% 49.00%    
Basell Orlen Polyolefins Sp. Z.o.o.        
Schedule of equity method investments [Line Items]        
Equity investment, ownership percentage (in percent) 50.00% 50.00%    
PolyMirae Co. Ltd.        
Schedule of equity method investments [Line Items]        
Equity investment, ownership percentage (in percent) 50.00% 50.00%    
Bright LyondellBasell Petrochemical Co. Ltd.        
Schedule of equity method investments [Line Items]        
Equity investment, ownership percentage (in percent) 50.00% 50.00%    
National Petrochemical Industrial Company        
Schedule of equity method investments [Line Items]        
Equity investment, ownership percentage (in percent) 35.00% 35.00%   35.00%
HMC Polymers Company Ltd.        
Schedule of equity method investments [Line Items]        
Equity investment, ownership percentage (in percent) 28.56% 28.56%    
Al-Waha Petrochemicals Ltd.        
Schedule of equity method investments [Line Items]        
Equity investment, ownership percentage (in percent) 25.00% 25.00%    
Saudi Ethylene & Polyethylene Company Ltd.        
Schedule of equity method investments [Line Items]        
Equity investment, ownership percentage (in percent) 25.00% 25.00%    
Saudi Polyolefins Company        
Schedule of equity method investments [Line Items]        
Equity investment, ownership percentage (in percent) 25.00% 25.00%    
U.S. PO Joint Venture        
Schedule of equity method investments [Line Items]        
Equity investment, ownership percentage (in percent) 60.62% 60.62%    
European PO JV        
Schedule of equity method investments [Line Items]        
Equity investment, ownership percentage (in percent) 50.00% 50.00%    
Ningbo ZRCC Lyondell Chemical Co. Ltd.        
Schedule of equity method investments [Line Items]        
Equity investment, ownership percentage (in percent) 26.65% 26.65%    
v3.25.4
Equity Investments - Changes in equity investments (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Changes in equity investments [Roll Forward]      
Beginning balance $ 4,121 $ 3,907  
Capital contributions 25 113  
Loss from equity investments (12) (217) $ (20)
Acquisition of equity investments 14 551 102
Distribution of earnings, net of tax (92) (122) (169)
Depreciation of PO Joint Ventures and Louisiana Joint Venture (125) (118)  
Impairments (4) (13)  
Currency exchange effects 46 (26)  
Other (10) 46  
Ending balance $ 3,963 $ 4,121 $ 3,907
v3.25.4
Equity Investments - Narrative (Details)
T in Thousands, $ in Millions
1 Months Ended 3 Months Ended 12 Months Ended
May 31, 2024
USD ($)
T
Dec. 31, 2023
USD ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2027
USD ($)
Schedule of equity method investments [Line Items]            
Acquisition of equity investments     $ 14 $ 551 $ 102  
Equity investments   $ 3,907 3,963 4,121 $ 3,907  
Impairments     4 13    
Equity method investments, difference between carrying amount and underlying equity     554 557    
Disposal Group, Not Discontinued Operations | European PO JV            
Schedule of equity method investments [Line Items]            
Exit costs incurred     126      
Forecast | Disposal Group, Not Discontinued Operations | European PO JV            
Schedule of equity method investments [Line Items]            
Expected cost           $ 215
Total PO Joint Ventures            
Schedule of equity method investments [Line Items]            
Acquisition of equity investments     $ 4 $ 84    
European PO JV            
Schedule of equity method investments [Line Items]            
Ownership percentage in the joint venture (in percent)     50.00% 50.00%    
Impairments   $ 192        
National Petrochemical Industrial Company (NATPET)            
Schedule of equity method investments [Line Items]            
Ownership percentage in the joint venture (in percent) 35.00%   35.00% 35.00%    
Equity investments $ 500          
Production manufacturing joint venture capacity | T 400          
v3.25.4
Equity Investments - Summarized balance sheet information (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Schedule of equity method investments [Line Items]    
Current assets $ 10,868 $ 12,266
Total assets 34,003 35,746
Current liabilities 6,129 6,705
Equity method investments, nonconsolidated investee or group of investees    
Schedule of equity method investments [Line Items]    
Current assets 2,826 3,230
Noncurrent assets 8,553 8,517
Total assets 11,379 11,747
Current liabilities 1,549 1,637
Noncurrent liabilities 1,414 1,064
Net assets $ 8,416 $ 9,046
v3.25.4
Equity Investments - Summarized income statement information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Schedule of equity method investments [Line Items]      
Revenues $ 30,153 $ 33,394 $ 33,336
Cost of sales (27,576) (28,750) (28,435)
Operating income (loss) (420) 1,918 2,725
Interest income 97 150 129
Interest expense (487) (481) (477)
Foreign currency translation 6 15 (34)
Other expense, net 113 47 (58)
Income (loss) from continuing operations before income taxes (715) 1,701 2,299
(Provision for) benefit from income taxes (70) (259) (433)
Income (loss) from continuing operations (785) 1,442 1,866
Equity method investments, nonconsolidated investee or group of investees      
Schedule of equity method investments [Line Items]      
Revenues 8,862 13,113 12,540
Cost of sales (8,534) (12,669) (12,044)
Gross profit 328 444 496
Net operating expenses (856) (614) (514)
Operating income (loss) (528) (170) (18)
Interest income 24 26 23
Interest expense (53) (148) (131)
Foreign currency translation 3 (17) (1)
Other expense, net (5) (3) (23)
Income (loss) from continuing operations before income taxes (559) (312) (150)
(Provision for) benefit from income taxes (61) (252) 22
Income (loss) from continuing operations $ (620) $ (564) $ (128)
v3.25.4
Prepaid Expenses, Other Current Assets and Other Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Components of prepaid expenses and other current assets [Abstract]    
Income tax receivable $ 181 $ 79
VAT receivables 116 179
Advances to suppliers 71 83
Financial derivatives 40 210
Prepaid insurance 31 36
Renewable identification numbers 0 127
Other 173 214
Total prepaid expenses and other current assets 612 928
Components of other assets [Abstract]    
Income tax receivable 228 142
Deferred tax assets 212 259
Pension assets 74 56
Company-owned life insurance 46 46
Financial derivatives 4 75
Other 103 110
Total other assets $ 667 $ 688
v3.25.4
Accrued and Other Current Liabilities - Accrued Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Payables and Accruals [Abstract]    
Payroll and benefits $ 414 $ 517
Operating lease liabilities 370 355
Taxes other than income taxes 183 199
Income taxes 145 311
Interest 144 127
Financial derivatives 122 71
Product sales rebates 115 132
Contract liabilities 113 110
Asset retirement obligations 54 113
Renewable identification numbers 0 132
Other 296 289
Total accrued and other current liabilities $ 1,956 $ 2,356
v3.25.4
Debt - Long-term debt (Details)
€ in Millions, $ in Millions
Dec. 31, 2025
USD ($)
Dec. 31, 2025
EUR (€)
Nov. 30, 2025
USD ($)
Dec. 31, 2024
USD ($)
Feb. 29, 2024
USD ($)
Long-term debt [Line Items]          
Total long-term debt $ 12,712     $ 11,030  
Less current maturities (588)     (498)  
Long-term debt 12,124     10,532  
Senior Notes due 2055, $1,000 million, 4.625% ($15 million of discount; $10 million of debt issuance cost)          
Long-term debt [Line Items]          
Face amount $ 1,000        
Stated interest rate (in percent) 4.625% 4.625%      
Unamortized discount $ 15        
Unamortized debt issuance costs 10        
Total long-term debt 975     975  
Guaranteed Notes due 2027, $300 million, 8.1%          
Long-term debt [Line Items]          
Face amount $ 300        
Stated interest rate (in percent) 8.10% 8.10%      
Total long-term debt $ 300     300  
Guaranteed Notes due 2043, $750 million, 5.25% ($17 million of discount; $6 million of debt issuance cost) | Issued by LYB International Finance B.V.:          
Long-term debt [Line Items]          
Face amount $ 750        
Stated interest rate (in percent) 5.25% 5.25%      
Unamortized discount $ 17        
Unamortized debt issuance costs 6        
Total long-term debt 727     726  
Guaranteed Notes due 2044, $1,000 million, 4.875% ($9 million of discount; $8 million of debt issuance cost) | Issued by LYB International Finance B.V.:          
Long-term debt [Line Items]          
Face amount $ 1,000        
Stated interest rate (in percent) 4.875% 4.875%      
Unamortized discount $ 9        
Unamortized debt issuance costs 8        
Total long-term debt $ 983     983  
Guaranteed Notes due 2026, €500 million, 0.875%          
Long-term debt [Line Items]          
Stated interest rate (in percent) 0.875% 0.875%      
Guaranteed Notes due 2026, €500 million, 0.875% | Issued by LYB International Finance II B.V.:          
Long-term debt [Line Items]          
Face amount | €   € 500      
Stated interest rate (in percent) 0.875% 0.875%      
Total long-term debt $ 585     515  
Guaranteed Notes due 2027, $1,000 million, 3.5% ($1 million of discount; $1 million of debt issuance cost)          
Long-term debt [Line Items]          
Stated interest rate (in percent) 3.50% 3.50%      
Guaranteed Notes due 2027, $1,000 million, 3.5% ($1 million of discount; $1 million of debt issuance cost) | Issued by LYB International Finance II B.V.:          
Long-term debt [Line Items]          
Face amount $ 1,000        
Stated interest rate (in percent) 3.50% 3.50%      
Unamortized discount $ 1        
Unamortized debt issuance costs 1        
Total long-term debt $ 590     584  
Guaranteed Notes due 2031, €500 million, 1.625% ($3 million of discount; $2 million of debt issuance cost) | Issued by LYB International Finance II B.V.:          
Long-term debt [Line Items]          
Face amount | €   € 500      
Stated interest rate (in percent) 1.625% 1.625%      
Unamortized discount $ 3        
Unamortized debt issuance costs 2        
Total long-term debt $ 577     514  
Guaranteed Notes due 2025, $500 million, 1.25%          
Long-term debt [Line Items]          
Stated interest rate (in percent) 1.25% 1.25%      
Guaranteed Notes due 2025, $500 million, 1.25% | Issued by LYB International Finance III, LLC:          
Long-term debt [Line Items]          
Face amount $ 500        
Stated interest rate (in percent) 1.25% 1.25%      
Total long-term debt $ 0     487  
Guaranteed Notes due 2030, $500 million, 3.375% ($1 million of debt issuance cost)          
Long-term debt [Line Items]          
Stated interest rate (in percent) 3.375% 3.375%      
Guaranteed Notes due 2030, $500 million, 3.375% ($1 million of debt issuance cost) | Issued by LYB International Finance III, LLC:          
Long-term debt [Line Items]          
Face amount $ 500        
Stated interest rate (in percent) 3.375% 3.375%      
Unamortized debt issuance costs $ 1        
Total long-term debt $ 142     123  
Guaranteed Notes due 2030, $500 million, 2.25% ($2 million of discount; $2 million of debt issuance cost)          
Long-term debt [Line Items]          
Stated interest rate (in percent) 2.25% 2.25%      
Guaranteed Notes due 2030, $500 million, 2.25% ($2 million of discount; $2 million of debt issuance cost) | Issued by LYB International Finance III, LLC:          
Long-term debt [Line Items]          
Face amount $ 500        
Stated interest rate (in percent) 2.25% 2.25%      
Unamortized discount $ 2        
Unamortized debt issuance costs 2        
Total long-term debt 481     473  
Guaranteed Notes due 2031, $500 million, 5.125% ($1 million of discount; $4 million of debt issuance cost) | Issued by LYB International Finance III, LLC:          
Long-term debt [Line Items]          
Face amount $ 500   $ 500    
Stated interest rate (in percent) 5.125% 5.125% 5.125%    
Unamortized discount $ 1        
Unamortized debt issuance costs 4        
Total long-term debt 495     0  
Guaranteed Notes due 2033, $500 million, 5.625% ($4 million of debt issuance cost) | Issued by LYB International Finance III, LLC:          
Long-term debt [Line Items]          
Face amount $ 500        
Stated interest rate (in percent) 5.625% 5.625%      
Unamortized debt issuance costs $ 4        
Total long-term debt 496     495  
Guaranteed Notes due 2034, $750 million, 5.5% ($5 million of discount, $6 million of debt issuance cost) | Issued by LYB International Finance III, LLC:          
Long-term debt [Line Items]          
Face amount $ 750       $ 750
Stated interest rate (in percent) 5.50% 5.50%     5.50%
Unamortized discount $ 5        
Unamortized debt issuance costs 6        
Total long-term debt 739     738  
Guaranteed Notes due 2035, $500 million, 6.15% ($1 million of discount, $5 million of debt issuance cost) | Issued by LYB International Finance III, LLC:          
Long-term debt [Line Items]          
Face amount $ 500        
Stated interest rate (in percent) 6.15% 6.15%      
Unamortized discount $ 1        
Unamortized debt issuance costs 5        
Total long-term debt 494     0  
Guaranteed Notes due 2036, $1,000 million, 5.875% ($7 million of discount, $9 million of debt issuance cost) | Issued by LYB International Finance III, LLC:          
Long-term debt [Line Items]          
Face amount $ 1,000   $ 1,000    
Stated interest rate (in percent) 5.875% 5.875% 5.875%    
Unamortized discount $ 7        
Unamortized debt issuance costs 9        
Total long-term debt 984     0  
Guaranteed Notes due 2040, $750 million, 3.375% ($1 million of discount; $6 million of debt issuance cost) | Issued by LYB International Finance III, LLC:          
Long-term debt [Line Items]          
Face amount $ 750        
Stated interest rate (in percent) 3.375% 3.375%      
Unamortized discount $ 1        
Unamortized debt issuance costs 6        
Total long-term debt 743     742  
Guaranteed Notes due 2049, $1,000 million, 4.2% ($13 million of discount; $10 million of debt issuance cost) | Issued by LYB International Finance III, LLC:          
Long-term debt [Line Items]          
Face amount $ 1,000        
Stated interest rate (in percent) 4.20% 4.20%      
Unamortized discount $ 13        
Unamortized debt issuance costs 10        
Total long-term debt $ 977     976  
Guaranteed Notes due 2050, $1,000 million, 4.2% ($6 million of discount; $10 million of debt issuance cost)          
Long-term debt [Line Items]          
Stated interest rate (in percent) 4.20% 4.20%      
Guaranteed Notes due 2050, $1,000 million, 4.2% ($6 million of discount; $10 million of debt issuance cost) | Issued by LYB International Finance III, LLC:          
Long-term debt [Line Items]          
Face amount $ 1,000        
Stated interest rate (in percent) 4.20% 4.20%      
Unamortized discount $ 6        
Unamortized debt issuance costs 10        
Total long-term debt 971     982  
Guaranteed Notes due 2051, $1,000 million, 3.625% ($2 million of discount; $9 million of debt issuance cost) | Issued by LYB International Finance III, LLC:          
Long-term debt [Line Items]          
Face amount $ 1,000        
Stated interest rate (in percent) 3.625% 3.625%      
Unamortized discount $ 2        
Unamortized debt issuance costs 9        
Total long-term debt 952     918  
Guaranteed Notes due 2060, $500 million, 3.8% ($4 million of discount; $5 million of debt issuance cost) | Issued by LYB International Finance III, LLC:          
Long-term debt [Line Items]          
Face amount $ 500        
Stated interest rate (in percent) 3.80% 3.80%      
Unamortized discount $ 4        
Unamortized debt issuance costs 5        
Total long-term debt 487     482  
Other | Issued by LYB International Finance III, LLC:          
Long-term debt [Line Items]          
Total long-term debt $ 14     $ 17  
v3.25.4
Debt - Description of fair value adjustments for guaranteed notes (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Long-term debt [Line Items]    
Gains (Losses) $ (61) $ (13)
Cumulative Fair Value Hedging Adjustments Included in Carrying Amount of Debt $ 73 134
Guaranteed Notes due 2025, 1.25%    
Long-term debt [Line Items]    
Stated interest rate (in percent) 1.25%  
Gains (Losses) $ (4) (5)
Cumulative Fair Value Hedging Adjustments Included in Carrying Amount of Debt $ 0 4
Guaranteed Notes due 2026, 0.875%    
Long-term debt [Line Items]    
Stated interest rate (in percent) 0.875%  
Gains (Losses) $ (2) (4)
Cumulative Fair Value Hedging Adjustments Included in Carrying Amount of Debt $ 2 4
Guaranteed Notes due 2027, 3.5%    
Long-term debt [Line Items]    
Stated interest rate (in percent) 3.50%  
Gains (Losses) $ (5) 3
Cumulative Fair Value Hedging Adjustments Included in Carrying Amount of Debt $ 0 5
Guaranteed Notes due 2030, 3.375%    
Long-term debt [Line Items]    
Stated interest rate (in percent) 3.375%  
Gains (Losses) $ (20) 1
Cumulative Fair Value Hedging Adjustments Included in Carrying Amount of Debt $ (2) 18
Guaranteed Notes due 2030, 2.25%    
Long-term debt [Line Items]    
Stated interest rate (in percent) 2.25%  
Gains (Losses) $ (7) 1
Cumulative Fair Value Hedging Adjustments Included in Carrying Amount of Debt $ 14 21
Guaranteed Notes due 2031, 1.625%    
Long-term debt [Line Items]    
Stated interest rate (in percent) 1.625%  
Gains (Losses) $ 4 (2)
Cumulative Fair Value Hedging Adjustments Included in Carrying Amount of Debt $ 5 1
Guaranteed Notes due 2050, 4.2%    
Long-term debt [Line Items]    
Stated interest rate (in percent) 4.20%  
Gains (Losses) $ 11 (7)
Cumulative Fair Value Hedging Adjustments Included in Carrying Amount of Debt $ 13 2
Guaranteed Notes due 2051, 3.625%    
Long-term debt [Line Items]    
Stated interest rate (in percent) 3.625%  
Gains (Losses) $ (33) (2)
Cumulative Fair Value Hedging Adjustments Included in Carrying Amount of Debt $ 37 70
Guaranteed Notes due 2060, 3.8%    
Long-term debt [Line Items]    
Stated interest rate (in percent) 3.80%  
Gains (Losses) $ (5) 2
Cumulative Fair Value Hedging Adjustments Included in Carrying Amount of Debt $ 4 $ 9
v3.25.4
Debt - Aggregate maturities of debt (Details)
$ in Millions
Dec. 31, 2025
USD ($)
Long-term debt [Line Items]  
2026 $ 816
2027 893
2028 2
2029 2
2030 644
Thereafter $ 10,842
Guaranteed Notes due 2026, €500 million, 0.875%  
Long-term debt [Line Items]  
Stated interest rate (in percent) 0.875%
Guaranteed Notes due 2026, €500 million, 0.875% | Issued by LYB International Finance II B.V.:  
Long-term debt [Line Items]  
2026 $ 587
Stated interest rate (in percent) 0.875%
v3.25.4
Debt - Description of long-term debt (Details)
$ in Millions
1 Months Ended 12 Months Ended
Nov. 30, 2025
USD ($)
Oct. 31, 2025
USD ($)
May 31, 2025
USD ($)
Mar. 31, 2024
USD ($)
Feb. 29, 2024
USD ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Sep. 30, 2025
Jul. 31, 2024
USD ($)
Description of long-term debt changes [Line Items]                    
Issuance of long-term debt           $ 1,990 $ 744 $ 500    
Repayments of long-term debt           492 $ 776 $ 425    
Senior Revolving Credit Facility, $3,250 million                    
Description of long-term debt changes [Line Items]                    
Maximum borrowing capacity           3,750       $ 3,750
Maximum allowed letters of credit           200        
Additional borrowing capacity, uncommitted loans           1,000        
Outstanding borrowings           0        
Outstanding letters of credit           0        
Unused availability           3,750        
Debt instrument, covenant, leverage ratio, maximum                 4.00  
Senior Revolving Credit Facility, $3,250 million | Fiscal quarters ending September 30, 2025 and December 31, 2025                    
Description of long-term debt changes [Line Items]                    
Debt instrument, covenant, leverage ratio, maximum                 4.25  
Senior Revolving Credit Facility, $3,250 million | Fiscal quarters ending March 31, 2026 through June 30, 2027                    
Description of long-term debt changes [Line Items]                    
Debt instrument, covenant, leverage ratio, maximum                 4.50  
Senior Revolving Credit Facility, $3,250 million | Fiscal quarter ending September 30, 2027                    
Description of long-term debt changes [Line Items]                    
Debt instrument, covenant, leverage ratio, maximum                 4.25  
Senior Revolving Credit Facility, $3,250 million | Fiscal quarter ending December 31, 2027                    
Description of long-term debt changes [Line Items]                    
Debt instrument, covenant, leverage ratio, maximum                 4.00  
Senior Revolving Credit Facility, $3,250 million | Thereafter                    
Description of long-term debt changes [Line Items]                    
Debt instrument, covenant, leverage ratio, maximum                 3.50  
Guaranteed Notes due 2027, 8.1%                    
Description of long-term debt changes [Line Items]                    
Face amount           $ 300        
Interest rate (in hundredths)           8.10%        
Senior Notes and Guaranteed Notes Except For Senior Notes Due 2024                    
Description of long-term debt changes [Line Items]                    
Debt instrument, redemption price (in percent)           100.00%        
5.125% Guaranteed Notes Due 2031 | Issued by LYB International Finance III, LLC:                    
Description of long-term debt changes [Line Items]                    
Face amount $ 500         $ 500        
Interest rate (in hundredths) 5.125%         5.125%        
Discounted prices at which long-term debt was issued (in hundredths) 99.80%                  
Guaranteed Notes Due 2036 | Issued by LYB International Finance III, LLC:                    
Description of long-term debt changes [Line Items]                    
Face amount $ 1,000         $ 1,000        
Interest rate (in hundredths) 5.875%         5.875%        
Discounted prices at which long-term debt was issued (in hundredths) 99.30%                  
Issuance of long-term debt $ 1,478                  
Guaranteed Notes due 2025, $500 million, 1.25%                    
Description of long-term debt changes [Line Items]                    
Interest rate (in hundredths)           1.25%        
Repayments of long-term debt   $ 492                
Guaranteed Notes due 2025, $500 million, 1.25% | Issued by LYB International Finance III, LLC:                    
Description of long-term debt changes [Line Items]                    
Face amount           $ 500        
Interest rate (in hundredths)           1.25%        
Guaranteed Notes due 2035, $500 million, 6.15% ($1 million of discount, $5 million of debt issuance cost) | Issued by LYB International Finance III, LLC:                    
Description of long-term debt changes [Line Items]                    
Face amount           $ 500        
Interest rate (in hundredths)           6.15%        
Guaranteed Notes due 2035, $500 million, 6.15% ($1 million of discount, $5 million of debt issuance cost) | Subsidiary Issuer, LYB International III Finance LLC                    
Description of long-term debt changes [Line Items]                    
Face amount     $ 500              
Interest rate (in hundredths)     6.15%              
Discounted prices at which long-term debt was issued (in hundredths)     99.70%              
Issuance of long-term debt     $ 494              
Guaranteed Notes due 2034, 5.5%                    
Description of long-term debt changes [Line Items]                    
Discounted prices at which long-term debt was issued (in hundredths)         99.20%          
Issuance of long-term debt         $ 737          
Guaranteed Notes due 2034, 5.5% | Issued by LYB International Finance III, LLC:                    
Description of long-term debt changes [Line Items]                    
Face amount         $ 750 $ 750        
Interest rate (in hundredths)         5.50% 5.50%        
Senior Notes due 2024, 5.75%                    
Description of long-term debt changes [Line Items]                    
Interest rate (in hundredths)       5.75%   5.75%        
Repayments of long-term debt       $ 775            
v3.25.4
Debt - Description of short-term debt (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Jul. 31, 2024
Description of short-term debt [Line Items]      
Weighted average interest rate, short-term debt (in hundredths) 2.70% 1.10%  
Short-term debt $ 226 $ 119  
U.S. Receivables Facility      
Description of short-term debt [Line Items]      
Maximum borrowing capacity 900    
Additional borrowing capacity, uncommitted loans 300    
Maximum allowed letters of credit 200    
Outstanding borrowings 0    
Outstanding letters of credit 0    
Unused availability 900    
Commercial paper program      
Description of short-term debt [Line Items]      
Maximum borrowing capacity 2,500    
Outstanding borrowings 0    
Precious metal financings      
Description of short-term debt [Line Items]      
Short-term debt 226 $ 119  
Senior Revolving Credit Facility, $3,250 million      
Description of short-term debt [Line Items]      
Maximum borrowing capacity 3,750   $ 3,750
Additional borrowing capacity, uncommitted loans 1,000    
Maximum allowed letters of credit 200    
Outstanding borrowings 0    
Outstanding letters of credit 0    
Unused availability $ 3,750    
v3.25.4
Debt - Debt discount and issuance costs included in interest expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Debt Disclosure [Abstract]      
Amortization of debt discount and debt issuance costs $ 11 $ 11 $ 9
v3.25.4
Leases - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Lease description [Line Items]      
Operating lease assets $ 1,514 $ 1,467  
Present value of lease liabilities 1,697 1,774  
Operating lease liability, current $ 370 $ 355  
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Accrued and other current liabilities Accrued and other current liabilities  
Operating lease, weighted average discount rate 4.20% 4.10%  
Operating lease, lessee, remaining lease term (in years) 21 years    
Operating lease, weighted average remaining lease term (in years) 9 years    
Operating lease cost $ 440 $ 395 $ 368
Cash paid for operating leases 458 454 447
Leased assets obtained in exchange for new operating lease liabilities 332 $ 383 $ 312
Additional operating leases, not yet commenced $ 45    
Minimum      
Lease description [Line Items]      
Operating lease, extension term (in years) 1 year    
Additional operating leases, not yet commenced, term of contract 5 years    
Maximum      
Lease description [Line Items]      
Operating lease, extension term (in years) 20 years    
Additional operating leases, not yet commenced, term of contract 7 years    
v3.25.4
Leases - Schedule of lease maturity (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Leases [Abstract]    
2026 $ 418  
2027 335  
2028 240  
2029 157  
2030 129  
Thereafter 797  
Total lease payments 2,076  
Less: Imputed interest (379)  
Present value of lease liabilities $ 1,697 $ 1,774
v3.25.4
Financial Instruments and Fair Value Measurements - Summary of derivative and non-derivative financial instruments outstanding measured at fair value on a recurring basis (Details) - Fair value, inputs, level 2 - Fair Value, Recurring - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Estimated fair value and carrying value of non-derivative financial instruments [Line Items]    
Derivative assets $ 44 $ 285
Derivative liabilities 408 222
Derivatives designated as hedges: | Prepaid expenses and other current assets | Commodities    
Estimated fair value and carrying value of non-derivative financial instruments [Line Items]    
Derivative assets 0 14
Derivatives designated as hedges: | Prepaid expenses and other current assets | Foreign currency    
Estimated fair value and carrying value of non-derivative financial instruments [Line Items]    
Derivative assets 19 146
Derivatives designated as hedges: | Prepaid expenses and other current assets | Interest rates    
Estimated fair value and carrying value of non-derivative financial instruments [Line Items]    
Derivative assets 16 16
Derivatives designated as hedges: | Other assets | Commodities    
Estimated fair value and carrying value of non-derivative financial instruments [Line Items]    
Derivative assets 4 7
Derivatives designated as hedges: | Other assets | Foreign currency    
Estimated fair value and carrying value of non-derivative financial instruments [Line Items]    
Derivative assets 0 66
Derivatives designated as hedges: | Accrued and other current liabilities | Commodities    
Estimated fair value and carrying value of non-derivative financial instruments [Line Items]    
Derivative liabilities 33 14
Derivatives designated as hedges: | Accrued and other current liabilities | Foreign currency    
Estimated fair value and carrying value of non-derivative financial instruments [Line Items]    
Derivative liabilities 15 9
Derivatives designated as hedges: | Accrued and other current liabilities | Interest rates    
Estimated fair value and carrying value of non-derivative financial instruments [Line Items]    
Derivative liabilities 27 36
Derivatives designated as hedges: | Other liabilities | Commodities    
Estimated fair value and carrying value of non-derivative financial instruments [Line Items]    
Derivative liabilities 8 5
Derivatives designated as hedges: | Other liabilities | Foreign currency    
Estimated fair value and carrying value of non-derivative financial instruments [Line Items]    
Derivative liabilities 199 0
Derivatives designated as hedges: | Other liabilities | Interest rates    
Estimated fair value and carrying value of non-derivative financial instruments [Line Items]    
Derivative liabilities 79 146
Derivatives not designated as hedges: | Prepaid expenses and other current assets | Commodities    
Estimated fair value and carrying value of non-derivative financial instruments [Line Items]    
Derivative assets 5 18
Derivatives not designated as hedges: | Prepaid expenses and other current assets | Foreign currency    
Estimated fair value and carrying value of non-derivative financial instruments [Line Items]    
Derivative assets 0 16
Derivatives not designated as hedges: | Other assets | Commodities    
Estimated fair value and carrying value of non-derivative financial instruments [Line Items]    
Derivative assets 0 2
Derivatives not designated as hedges: | Accrued and other current liabilities | Commodities    
Estimated fair value and carrying value of non-derivative financial instruments [Line Items]    
Derivative liabilities 42 11
Derivatives not designated as hedges: | Accrued and other current liabilities | Foreign currency    
Estimated fair value and carrying value of non-derivative financial instruments [Line Items]    
Derivative liabilities $ 5 $ 1
v3.25.4
Financial Instruments and Fair Value Measurements - Carrying value and estimated fair value of non-derivative financial instruments (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Estimated fair value and carrying value of non-derivative financial instruments [Line Items]    
Precious metal financings, carrying value $ 226 $ 119
Nonrecurring | Non-derivatives    
Estimated fair value and carrying value of non-derivative financial instruments [Line Items]    
Precious metal financings, carrying value 226 119
Precious metal financings, fair value 263 122
Long-term debt, carrying value 12,113 10,521
Long-term debt, fair value 10,501 9,048
Total liabilities, carrying value 12,339 10,640
Total liabilities, fair value $ 10,764 $ 9,170
v3.25.4
Financial Instruments and Fair Value Measurements - Summary of commodity derivatives (Details)
bbl in Millions, MWh in Millions, MMBTU in Millions
Dec. 31, 2025
bbl
MMBTU
MWh
Dec. 31, 2024
bbl
MMBTU
MWh
Derivatives designated as hedges: | Natural gas    
Derivative [Line Items]    
Derivative, nonmonetary notional amount | MMBTU 51 62
Derivatives designated as hedges: | Ethane    
Derivative [Line Items]    
Derivative, nonmonetary notional amount 13 14
Derivatives designated as hedges: | Power    
Derivative [Line Items]    
Derivative, nonmonetary notional amount | MWh 1 0
Derivatives not designated as hedges: | Ethane    
Derivative [Line Items]    
Derivative, nonmonetary notional amount 6 0
Derivatives not designated as hedges: | Other commodities    
Derivative [Line Items]    
Derivative, nonmonetary notional amount 3 6
v3.25.4
Financial Instruments and Fair Value Measurements - Summary of interest rate hedges (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Fair value hedges | Interest rates    
Derivative [Line Items]    
Notional amount $ 1,885 $ 2,158
v3.25.4
Financial Instruments and Fair Value Measurements - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Financial Instruments and Fair Value Measurements [Abstract]      
Foreign currency translation $ 6 $ 15 $ (34)
Amount of marketable securities classified as cash and cash equivalents 2,030 $ 2,610  
Pre-tax unrealized gain (loss) to be reclassified to earnings over the next twelve months $ 5    
v3.25.4
Financial Instruments and Fair Value Measurements - Summary of foreign currency hedges (Details) - Foreign currency - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Derivatives not designated as hedges:    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Notional amount $ 295 $ 772
Net investment hedges | Derivatives designated as hedges:    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Notional amount 2,465 3,256
Cash flow hedges | Derivatives designated as hedges:    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Notional amount $ 294 $ 300
v3.25.4
Financial Instruments and Fair Value Measurements - Pretax impact of derivative instruments on earnings and other comprehensive income (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (Loss) Recognized in AOCI $ (444) $ 226 $ (284)
Gain (Loss) Reclassified from AOCI to Income 62 102 69
Additional Gain (Loss) Recognized in Income $ (56) $ 70 $ 79
Derivative, gain (loss), statement of income or comprehensive income [Extensible Enumeration] Cost of sales, Interest Expense, Nonoperating, Other income (expense), net, Revenue from Contract with Customer, Excluding Assessed Tax Cost of sales, Interest Expense, Nonoperating, Other income (expense), net, Revenue from Contract with Customer, Excluding Assessed Tax Cost of sales, Interest Expense, Nonoperating, Other income (expense), net, Revenue from Contract with Customer, Excluding Assessed Tax
Derivatives designated as hedges: | Commodities      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (Loss) Recognized in AOCI $ (60)    
Gain (Loss) Reclassified from AOCI to Income 22    
Additional Gain (Loss) Recognized in Income 0    
Derivatives designated as hedges: | Commodities | Sales and other operating revenues      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (Loss) Recognized in AOCI   $ (2) $ (2)
Gain (Loss) Reclassified from AOCI to Income   4 0
Additional Gain (Loss) Recognized in Income   0 0
Derivatives designated as hedges: | Commodities | Cost of sales      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (Loss) Recognized in AOCI   11 (157)
Gain (Loss) Reclassified from AOCI to Income   129 33
Additional Gain (Loss) Recognized in Income   0 0
Derivatives designated as hedges: | Foreign currency      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (Loss) Recognized in AOCI (384) 206 (142)
Gain (Loss) Reclassified from AOCI to Income 36 (35) 31
Additional Gain (Loss) Recognized in Income 45 59 70
Derivatives designated as hedges: | Interest rates      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (Loss) Recognized in AOCI 0 11 17
Gain (Loss) Reclassified from AOCI to Income 4 4 5
Additional Gain (Loss) Recognized in Income 13 (64) (20)
Derivatives not designated as hedges: | Commodities | Sales and other operating revenues      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (Loss) Recognized in AOCI   0 0
Gain (Loss) Reclassified from AOCI to Income   0 0
Additional Gain (Loss) Recognized in Income   (2) 1
Derivatives not designated as hedges: | Commodities | Cost of sales      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (Loss) Recognized in AOCI 0 0 0
Gain (Loss) Reclassified from AOCI to Income 0 0 0
Additional Gain (Loss) Recognized in Income (44) 23 5
Derivatives not designated as hedges: | Commodities | Income (loss) from discontinued operations, net of tax      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (Loss) Recognized in AOCI 0 0 0
Gain (Loss) Reclassified from AOCI to Income 0 0 0
Additional Gain (Loss) Recognized in Income 8 11 52
Derivatives not designated as hedges: | Foreign currency      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (Loss) Recognized in AOCI 0 0 0
Gain (Loss) Reclassified from AOCI to Income 0 0 0
Additional Gain (Loss) Recognized in Income $ (78) $ 43 $ (29)
v3.25.4
Pension and Other Post-retirement Benefits - Pension changes in PBO and plan assets (Details) - Pension Plan - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
U.S.      
Change in benefit obligation:      
Benefit obligation, beginning of period $ 1,232 $ 1,155  
Service cost 54 52  
Interest cost 59 62  
Actuarial (gain) loss (13) 60  
Plan amendments (5) 0  
Benefits paid (128) (97)  
Participant contributions 0 0  
Settlement (43) 0  
Curtailment 6 0  
Termination benefits 6 0  
Foreign exchange effects 0 0  
Benefit obligation, end of period 1,168 1,232 $ 1,155
Change in plan assets:      
Fair value of plan assets, beginning of period 1,036 960  
Actual return on plan assets 49 130  
Company contributions 20 43  
Benefits paid (128) (97)  
Participant contributions 0 0  
Settlement (43) 0  
Foreign exchange effects 0 0  
Fair value of plan assets, end of period 934 1,036 960
Funded status, end of period (234) (196)  
Non-U.S.      
Change in benefit obligation:      
Benefit obligation, beginning of period 1,389 1,363  
Service cost 25 21 22
Interest cost 54 52 51
Actuarial (gain) loss (141) 88  
Plan amendments 1 0  
Benefits paid (71) (59)  
Participant contributions 2 2  
Settlement (3) (3)  
Curtailment 0 0  
Termination benefits 0 0  
Foreign exchange effects 159 (75)  
Benefit obligation, end of period 1,415 1,389 1,363
Change in plan assets:      
Fair value of plan assets, beginning of period 770 705  
Actual return on plan assets (52) 112  
Company contributions 59 51  
Benefits paid (71) (59)  
Participant contributions 2 2  
Settlement (3) (3)  
Foreign exchange effects 81 (38)  
Fair value of plan assets, end of period 786 770 $ 705
Funded status, end of period $ (629) $ (619)  
v3.25.4
Pension and Other Post-retirement Benefits - Pension amounts recognized in the consolidated balance sheets and in accumulated other comprehensive income (loss) (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Amounts recognized in the consolidated balance sheets consist of: [Abstract]    
Prepaid benefit cost, long-term $ 74 $ 56
Pension Plan | U.S.    
Amounts recognized in the consolidated balance sheets consist of: [Abstract]    
Prepaid benefit cost, long-term 0 0
Accrued benefit liability, current 0 0
Accrued benefit liability, long-term (234) (196)
Funded status, end of period (234) (196)
Amounts recognized in accumulated other comprehensive income (loss): [Abstract]    
Actuarial and investment loss 278 276
Prior service (credit) cost (4) 0
Balance, end of period 274 276
Pension Plan | Non-U.S.    
Amounts recognized in the consolidated balance sheets consist of: [Abstract]    
Prepaid benefit cost, long-term 74 56
Accrued benefit liability, current (37) (30)
Accrued benefit liability, long-term (666) (645)
Funded status, end of period (629) (619)
Amounts recognized in accumulated other comprehensive income (loss): [Abstract]    
Actuarial and investment loss 70 94
Prior service (credit) cost 23 23
Balance, end of period $ 93 $ 117
v3.25.4
Pension and Other Post-retirement Benefits - Pension additional information (Details) - Pension Plan - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
U.S.    
Accumulated benefit obligation for defined benefit plans [Abstract]    
Accumulated benefit obligation for defined benefit plans $ 1,150 $ 1,204
Pension plans with projected benefit obligations in excess of the fair value of assets [Abstract]    
Projected benefit obligations 1,168 1,232
Fair value of assets 934 1,036
Pension plans with accumulated benefit obligations in excess of the fair value of assets [Abstract]    
Accumulated benefit obligations 1,150 1,201
Fair value of assets 934 1,033
Non-U.S.    
Accumulated benefit obligation for defined benefit plans [Abstract]    
Accumulated benefit obligation for defined benefit plans 1,298 1,268
Pension plans with projected benefit obligations in excess of the fair value of assets [Abstract]    
Projected benefit obligations 820 793
Fair value of assets 117 118
Pension plans with accumulated benefit obligations in excess of the fair value of assets [Abstract]    
Accumulated benefit obligations 621 593
Fair value of assets $ 7 $ 8
v3.25.4
Pension and Other Post-retirement Benefits - Pension periodic costs (Details) - Pension Plan - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Service cost $ 54 $ 52  
Interest cost 59 62  
Expected return on plan assets (63) (58) $ (62)
Actuarial (gain) loss amortization 16 19 17
Net periodic benefit cost 54 63 50
U.S. | Discontinued Operations Difference      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 49 47 45
Interest cost 52 55 50
Non-U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 25 21 22
Interest cost 54 52 51
Expected return on plan assets (28) (28) (28)
Prior service cost amortization 3 3 3
Actuarial (gain) loss amortization 5 5 (1)
Net periodic benefit cost $ 59 $ 53 $ 47
v3.25.4
Pension and Other Post-retirement Benefits - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Pension Plan      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets transferred $ 65    
U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Expected return on plan assets 7.25%    
U.S. | Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Defined benefit plan, assumptions used calculating net periodic benefit cost, expected long-term earnings (in years) 15 years    
U.S. | Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Defined benefit plan, assumptions used calculating net periodic benefit cost, expected long-term earnings (in years) 20 years    
U.S. | Pension Plan      
Defined Benefit Plan Disclosure [Line Items]      
Defined benefit plan, expected future employer contributions, next fiscal year $ 80    
Expected return on plan assets 7.25% 7.25% 7.25%
Non-U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Expected return on plan assets 3.44%    
Non-U.S. | Pension Plan      
Defined Benefit Plan Disclosure [Line Items]      
Defined benefit plan, expected future employer contributions, next fiscal year $ 63    
Expected return on plan assets 3.44% 4.14% 3.57%
Non-U.S. | Pension Plan | Insurance arrangements | Fair Value      
Defined Benefit Plan Disclosure [Line Items]      
Fair value $ 610 $ 531  
Non-U.S. | Pension Plan | Insurance arrangements | Fair Value | Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Fair value $ 610 $ 531  
v3.25.4
Pension and Other Post-retirement Benefits - Pension actual and target asset allocations (Details) - Pension Plan
Dec. 31, 2025
Dec. 31, 2024
Canadian plan fixed income debt securities    
Defined Benefit Plan Disclosure [Line Items]    
Actual asset allocation (in percent)   100.00%
Target asset allocation (in percent)   100.00%
United Kingdom LCC plan equity securities    
Defined Benefit Plan Disclosure [Line Items]    
Actual asset allocation (in percent) 26.00% 25.00%
Target asset allocation (in percent) 25.00% 25.00%
United Kingdom LCC plan fixed income debt securities    
Defined Benefit Plan Disclosure [Line Items]    
Actual asset allocation (in percent) 74.00% 75.00%
Target asset allocation (in percent) 75.00% 75.00%
United Kingdom Basell plans equity securities    
Defined Benefit Plan Disclosure [Line Items]    
Actual asset allocation (in percent) 27.00% 25.00%
Target asset allocation (in percent) 25.00% 25.00%
United Kingdom Basell plan fixed income debt securities    
Defined Benefit Plan Disclosure [Line Items]    
Actual asset allocation (in percent) 73.00% 75.00%
Target asset allocation (in percent) 75.00% 75.00%
United Kingdom A Schulman plan growth assets    
Defined Benefit Plan Disclosure [Line Items]    
Actual asset allocation (in percent) 27.00% 26.00%
Target asset allocation (in percent) 25.00% 25.00%
United Kingdom A Schulman plan matching assets    
Defined Benefit Plan Disclosure [Line Items]    
Actual asset allocation (in percent) 73.00% 74.00%
Target asset allocation (in percent) 75.00% 75.00%
United States plan equity securities    
Defined Benefit Plan Disclosure [Line Items]    
Actual asset allocation (in percent) 41.00% 39.00%
Target asset allocation (in percent) 40.00% 40.00%
Fixed income securities    
Defined Benefit Plan Disclosure [Line Items]    
Actual asset allocation (in percent) 47.00% 48.00%
Target asset allocation (in percent) 45.00% 45.00%
Unites States plan alternative investments    
Defined Benefit Plan Disclosure [Line Items]    
Actual asset allocation (in percent) 12.00% 13.00%
Target asset allocation (in percent) 15.00% 15.00%
v3.25.4
Pension and Other Post-retirement Benefits - Pension future expected benefit payments (Details) - Pension Plan
$ in Millions
Dec. 31, 2025
USD ($)
U.S.  
Defined Benefit Plan Disclosure [Line Items]  
2026 $ 127
2027 93
2028 97
2029 96
2030 95
2031 through 2035 490
Non-U.S.  
Defined Benefit Plan Disclosure [Line Items]  
2026 73
2027 73
2028 75
2029 77
2030 79
2031 through 2035 $ 414
v3.25.4
Pension and Other Post-retirement Benefits - Pension weighted average assumptions (Details)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
U.S.      
Weighted average assumptions used in determining net benefit costs [Abstract]      
Expected return on plan assets 7.25%    
Non-U.S.      
Weighted average assumptions used in determining net benefit costs [Abstract]      
Expected return on plan assets 3.44%    
Pension Plan | U.S.      
Weighted average assumptions used in determining the net benefit liabilities [Abstract]      
Discount rate 5.43% 5.35%  
Rate of compensation increase 4.66% 4.66%  
Cash balance interest credit rate 4.67% 4.36%  
Weighted average assumptions used in determining net benefit costs [Abstract]      
Discount rate 5.35% 5.80% 5.50%
Expected return on plan assets 7.25% 7.25% 7.25%
Rate of compensation increase 4.66% 4.68% 4.65%
Pension Plan | Non-U.S.      
Weighted average assumptions used in determining the net benefit liabilities [Abstract]      
Discount rate 4.37% 3.66%  
Rate of compensation increase 3.37% 3.36%  
Cash balance interest credit rate 0.00% 0.00%  
Weighted average assumptions used in determining net benefit costs [Abstract]      
Discount rate 3.66% 4.00% 3.99%
Expected return on plan assets 3.44% 4.14% 3.57%
Rate of compensation increase 3.36% 3.58% 2.66%
v3.25.4
Pension and Other Post-retirement Benefits - Pension fair value of plan assets (Details) - Pension Plan - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Fair Value Measurement [Domain] | U.S. | Level 1 | Fixed income securities      
Pension investments that are measured at fair value [Line Items]      
Pension assets   $ 0  
Fair Value Measurement [Domain] | U.S. | Level 2 | Fixed income securities      
Pension investments that are measured at fair value [Line Items]      
Pension assets   97  
Fair Value Measurement [Domain] | U.S. | Level 3 | Fixed income securities      
Pension investments that are measured at fair value [Line Items]      
Pension assets   0  
U.S.      
Pension investments that are measured at fair value [Line Items]      
Total Pension Assets $ 934 1,036 $ 960
Non-U.S.      
Pension investments that are measured at fair value [Line Items]      
Total Pension Assets 786 770 $ 705
Fair Value | U.S.      
Pension investments that are measured at fair value [Line Items]      
Total Pension Assets 933 1,028  
Fair Value | U.S. | Common and preferred stock      
Pension investments that are measured at fair value [Line Items]      
Pension assets 59 64  
Fair Value | U.S. | Commingled funds measured at net asset value      
Pension investments that are measured at fair value [Line Items]      
Pension assets 432 459  
Fair Value | U.S. | Fixed income securities      
Pension investments that are measured at fair value [Line Items]      
Pension assets 97 97  
Fair Value | U.S. | Real estate funds measured at net asset value      
Pension investments that are measured at fair value [Line Items]      
Pension assets 57 63  
Fair Value | U.S. | Hedge funds measured at net asset value      
Pension investments that are measured at fair value [Line Items]      
Pension assets 15 20  
Fair Value | U.S. | Private equity measured at net asset value      
Pension investments that are measured at fair value [Line Items]      
Pension assets 39 46  
Fair Value | U.S. | U.S. government securities      
Pension investments that are measured at fair value [Line Items]      
Pension assets 217 253  
Fair Value | U.S. | Cash and cash equivalents      
Pension investments that are measured at fair value [Line Items]      
Pension assets 17 26  
Fair Value | U.S. | Level 1      
Pension investments that are measured at fair value [Line Items]      
Total Pension Assets 293 343  
Fair Value | U.S. | Level 1 | Common and preferred stock      
Pension investments that are measured at fair value [Line Items]      
Pension assets 59 64  
Fair Value | U.S. | Level 1 | Fixed income securities      
Pension investments that are measured at fair value [Line Items]      
Pension assets 0    
Fair Value | U.S. | Level 1 | U.S. government securities      
Pension investments that are measured at fair value [Line Items]      
Pension assets 217 253  
Fair Value | U.S. | Level 1 | Cash and cash equivalents      
Pension investments that are measured at fair value [Line Items]      
Pension assets 17 26  
Fair Value | U.S. | Level 2      
Pension investments that are measured at fair value [Line Items]      
Total Pension Assets 97 97  
Fair Value | U.S. | Level 2 | Common and preferred stock      
Pension investments that are measured at fair value [Line Items]      
Pension assets 0 0  
Fair Value | U.S. | Level 2 | Fixed income securities      
Pension investments that are measured at fair value [Line Items]      
Pension assets 97    
Fair Value | U.S. | Level 2 | U.S. government securities      
Pension investments that are measured at fair value [Line Items]      
Pension assets 0 0  
Fair Value | U.S. | Level 2 | Cash and cash equivalents      
Pension investments that are measured at fair value [Line Items]      
Pension assets 0 0  
Fair Value | U.S. | Level 3      
Pension investments that are measured at fair value [Line Items]      
Total Pension Assets 0 0  
Fair Value | U.S. | Level 3 | Common and preferred stock      
Pension investments that are measured at fair value [Line Items]      
Pension assets 0 0  
Fair Value | U.S. | Level 3 | Fixed income securities      
Pension investments that are measured at fair value [Line Items]      
Pension assets 0    
Fair Value | U.S. | Level 3 | U.S. government securities      
Pension investments that are measured at fair value [Line Items]      
Pension assets 0 0  
Fair Value | U.S. | Level 3 | Cash and cash equivalents      
Pension investments that are measured at fair value [Line Items]      
Pension assets 0 0  
Fair Value | Non-U.S.      
Pension investments that are measured at fair value [Line Items]      
Total Pension Assets 783 769  
Fair Value | Non-U.S. | Commingled funds measured at net asset value      
Pension investments that are measured at fair value [Line Items]      
Pension assets 172 237  
Fair Value | Non-U.S. | Cash and cash equivalents      
Pension investments that are measured at fair value [Line Items]      
Pension assets 1 1  
Fair Value | Non-U.S. | Insurance arrangements      
Pension investments that are measured at fair value [Line Items]      
Pension assets 610 531  
Fair Value | Non-U.S. | Level 1      
Pension investments that are measured at fair value [Line Items]      
Total Pension Assets 1 1  
Fair Value | Non-U.S. | Level 1 | Cash and cash equivalents      
Pension investments that are measured at fair value [Line Items]      
Pension assets 1 1  
Fair Value | Non-U.S. | Level 1 | Insurance arrangements      
Pension investments that are measured at fair value [Line Items]      
Pension assets 0 0  
Fair Value | Non-U.S. | Level 2      
Pension investments that are measured at fair value [Line Items]      
Total Pension Assets 0 0  
Fair Value | Non-U.S. | Level 2 | Cash and cash equivalents      
Pension investments that are measured at fair value [Line Items]      
Pension assets 0 0  
Fair Value | Non-U.S. | Level 2 | Insurance arrangements      
Pension investments that are measured at fair value [Line Items]      
Pension assets 0 0  
Fair Value | Non-U.S. | Level 3      
Pension investments that are measured at fair value [Line Items]      
Total Pension Assets 610 531  
Fair Value | Non-U.S. | Level 3 | Cash and cash equivalents      
Pension investments that are measured at fair value [Line Items]      
Pension assets 0 0  
Fair Value | Non-U.S. | Level 3 | Insurance arrangements      
Pension investments that are measured at fair value [Line Items]      
Pension assets $ 610 $ 531  
v3.25.4
Pension and Other Post-retirement Benefits - Other postretirement benefits plans changes in benefit obligation and plan assets (Details) - Other postretirement benefits plans - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
United States    
Change in benefit obligation:    
Benefit obligation, beginning of period $ 139 $ 142
Service cost 0 0
Interest cost 7 8
Actuarial (gain) loss 6 8
Benefits paid (22) (24)
Participant contributions 4 5
Foreign exchange effects 0 0
Benefit obligation, end of period 134 139
Change in plan assets:    
Fair value of plan assets, beginning of period 0 0
Employer contributions 18 19
Participant contributions 4 5
Benefits paid (22) (24)
Fair value of plan assets, end of period 0 0
Funded status of plan assets [Abstract]    
Funded status, end of period (134) (139)
Non-U.S.    
Change in benefit obligation:    
Benefit obligation, beginning of period 52 39
Service cost 2 1
Interest cost 2 2
Actuarial (gain) loss (5) 15
Benefits paid (2) (1)
Participant contributions 0 0
Foreign exchange effects 6 (4)
Benefit obligation, end of period 55 52
Change in plan assets:    
Fair value of plan assets, beginning of period 0 0
Employer contributions 2 1
Participant contributions 0 0
Benefits paid (2) (1)
Fair value of plan assets, end of period 0 0
Funded status of plan assets [Abstract]    
Funded status, end of period $ (55) $ (52)
v3.25.4
Pension and Other Post-retirement Benefits - Other postretirement benefits plans amounts recognized in the consolidated balance sheets and in accumulated other comprehensive income (loss) (Details) - Other postretirement benefits plans - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
U.S.    
Amounts recognized in the consolidated balance sheets consist of: [Abstract]    
Accrued benefit liability, current $ (13) $ (13)
Accrued benefit liability, long-term (121) (126)
Funded status, end of period (134) (139)
Amounts recognized in accumulated other comprehensive income (loss): [Abstract]    
Actuarial and investment income 48 61
Prior service cost 0 0
Balance, end of period 48 61
Non-U.S.    
Amounts recognized in the consolidated balance sheets consist of: [Abstract]    
Accrued benefit liability, current (2) (1)
Accrued benefit liability, long-term (53) (51)
Funded status, end of period (55) (52)
Amounts recognized in accumulated other comprehensive income (loss): [Abstract]    
Actuarial and investment income 11 8
Prior service cost (1) (1)
Balance, end of period $ 10 $ 7
v3.25.4
Pension and Other Post-retirement Benefits - Other postretirement benefits plans net periodic costs (Details) - Other postretirement benefits plans - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
U.S.    
Defined Benefit Plan Disclosure [Line Items]    
Service cost $ 0 $ 0
Interest cost 7 8
Non-U.S.    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 2 1
Interest cost $ 2 $ 2
v3.25.4
Pension and Other Post-retirement Benefits - Other postretirement benefits plans assumed health care cost trend rates (Details) - Other postretirement benefits plans
Dec. 31, 2025
Dec. 31, 2024
U.S.    
Defined Benefit Plan Disclosure [Line Items]    
Immediate trend rate 7.00% 6.50%
Ultimate trend rate (the rate to which the cost trend rate is assumed to decline) 4.50% 4.50%
Canada    
Defined Benefit Plan Disclosure [Line Items]    
Immediate trend rate 4.50% 4.50%
Ultimate trend rate (the rate to which the cost trend rate is assumed to decline) 4.50% 4.50%
France    
Defined Benefit Plan Disclosure [Line Items]    
Immediate trend rate 5.00% 5.00%
Ultimate trend rate (the rate to which the cost trend rate is assumed to decline) 5.00% 5.00%
v3.25.4
Pension and Other Post-retirement Benefits - Other postretirement benefits plans assumptions used to determine net benefit liabilities and costs (Details) - Other postretirement benefits plans
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
U.S.      
Weighted average assumptions used in determining the net benefit liabilities [Abstract]      
Discount rate 5.08% 5.24%  
Rate of compensation increase 4.12% 4.09%  
Weighted average assumptions used in determining net benefit costs for the year [Abstract]      
Discount rate 5.24% 5.74% 5.44%
Rate of compensation increase 4.09% 4.13% 4.16%
Non-U.S.      
Weighted average assumptions used in determining the net benefit liabilities [Abstract]      
Discount rate 4.01% 3.53%  
Rate of compensation increase 0.00% 0.00%  
Weighted average assumptions used in determining net benefit costs for the year [Abstract]      
Discount rate 3.53% 4.36% 3.95%
Rate of compensation increase 0.00% 0.00% 0.00%
v3.25.4
Pension and Other Post-retirement Benefits - Other postretirement benefits plans future expected benefit payments (Details) - Other postretirement benefits plans
$ in Millions
Dec. 31, 2025
USD ($)
U.S.  
Defined Benefit Plan Disclosure [Line Items]  
2026 $ 13
2027 13
2028 13
2029 13
2030 12
2031 through 2035 53
Non-U.S.  
Defined Benefit Plan Disclosure [Line Items]  
2026 2
2027 2
2028 2
2029 2
2030 2
2031 through 2035 $ 10
v3.25.4
Pension and Other Post-retirement Benefits - AOCI paragraph (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]    
Deferred income taxes provision related to pension and other postretirement benefit amounts in accumulated other comprehensive income (loss) $ 72 $ 91
Pension Plan | Discount rate assumption change for defined benefit plans    
Defined Benefit Plan Disclosure [Line Items]    
Actuarial gain (loss) arising during the period 53 1
Other postretirement benefits plans | Discount rate assumption change for defined benefit plans    
Defined Benefit Plan Disclosure [Line Items]    
Actuarial gain (loss) arising during the period $ (1) $ (22)
v3.25.4
Pension and Other Post-retirement Benefits - Defined contribution plan (Details) - Contribution plan - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
United States      
Defined Contribution Plan Disclosure [Line Items]      
Employee Savings Plans $ 58 $ 56 $ 54
Non-U.S.      
Defined Contribution Plan Disclosure [Line Items]      
Employee Savings Plans $ 11 $ 11 $ 9
v3.25.4
Incentive and Share-Based Compensation - Narrative (Details)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2025
USD ($)
$ / shares
shares
Dec. 31, 2024
USD ($)
$ / shares
Dec. 31, 2023
USD ($)
$ / shares
Share-based compensation arrangements [Line Items]      
Shares available for issuance (in shares) | shares 4,516,489    
Stockholders' equity, redemption ratio 1    
Restricted stock units      
Share-based compensation arrangements [Line Items]      
Vesting period (in years) 3 years    
Weighted average fair value (usd per share) | $ / shares $ 70.49 $ 95.78 $ 93.93
Total fair value vested during period $ 44 $ 45 $ 30
Unrecognized compensation cost related to award, restricted stock units $ 36    
Weighted average remaining expense period (in years) 1 year 3 months    
Stock options      
Share-based compensation arrangements [Line Items]      
Vesting period (in years) 3 years    
Contractual term (in years) 10 years    
Aggregate intrinsic value of stock options exercised during the period   $ 10 $ 8
Performance share units      
Share-based compensation arrangements [Line Items]      
Weighted average fair value (usd per share) | $ / shares $ 71.27    
Total fair value vested during period $ 11    
Unrecognized compensation cost related to award, restricted stock units $ 32    
Weighted average remaining expense period (in years) 1 year 9 months 18 days    
Performance period (in years) 3 years    
FCF component fair value $ 8    
TSR, target shares payout (in percent) 0.90    
FCF, target shares payout (in percent) 0.68    
Performance share units | Minimum      
Share-based compensation arrangements [Line Items]      
Payout of awards, percent of target shares granted (in percent) 0    
Performance share units | Maximum      
Share-based compensation arrangements [Line Items]      
Payout of awards, percent of target shares granted (in percent) 2    
Long-term incentive plan      
Share-based compensation arrangements [Line Items]      
Share-based compensation arrangement by share-based payment award, number of shares authorized (in shares) | shares 30,000,000    
v3.25.4
Incentive and Share-Based Compensation - Long-Term Incentive Plan (Details) - Long-term incentive plan - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Share-based compensation arrangements [Line Items]      
Compensation Expense: $ 91 $ 91 $ 91
Tax Benefit: 21 21 21
Restricted stock units      
Share-based compensation arrangements [Line Items]      
Compensation Expense: 70 60 44
Tax Benefit: 16 14 10
Stock options      
Share-based compensation arrangements [Line Items]      
Compensation Expense: 1 4 10
Tax Benefit: 0 1 2
Performance share units      
Share-based compensation arrangements [Line Items]      
Compensation Expense: 20 27 37
Tax Benefit: $ 5 $ 6 $ 9
v3.25.4
Incentive and Share-Based Compensation - RSU activity (Details) - Restricted stock units - $ / shares
shares in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Number of Units (in thousands)      
Outstanding at beginning of period (in shares) 1,236    
Granted (in shares) 897    
Vested (in shares) (698)    
Forfeited (in shares) (93)    
Outstanding at end of period (in shares) 1,342 1,236  
Weighted Average  Grant Date Fair Value (per share)      
Outstanding at beginning of period (in dollars per share) $ 95.09    
Weighted average fair value (usd per share) 70.49 $ 95.78 $ 93.93
Vested (in dollars per share) 91.76    
Forfeited (in dollars per share) 84.27    
Outstanding at end of period (in dollars per share) $ 81.13 $ 95.09  
v3.25.4
Incentive and Share-Based Compensation - Stock options (Details) - Stock options - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2023
Share-based compensation disclosures [Line Items]    
Weighted average fair value (usd per share)   $ 24.85
Fair value assumptions:    
Dividend yield (in percent)   5.00%
Expected volatility, minimum (in percent)   39.90%
Expected volatility, maximum (in percent)   40.20%
Risk-free interest rate, minimum (in percent)   3.50%
Risk-free interest rate, maximum (in percent)   4.70%
Weighted average expected term, in years   5 years 8 months 12 days
Number of Shares (in thousands)    
Outstanding at beginning of period (in shares) 1,943  
Forfeited (in shares) (8)  
Expired (in shares) (126)  
Outstanding at end of period (in shares) 1,809  
Exercisable at end of period (in shares) 1,678  
Weighted Average Exercise Price    
Outstanding at beginning of period (in dollars per share) $ 91.40  
Forfeited (in dollars per share) 94.46  
Expired (in dollars per share) 98.24  
Outstanding at end of period (in dollars per share) 90.91  
Exercisable at end of period (in dollars per share) $ 90.62  
Additional disclosures, stock options [Abstract]    
Weighted average remaining term, outstanding options 4 years 1 month 6 days  
Weighted average remaining term, exercisable options 3 years 10 months 24 days  
Aggregate intrinsic value, outstanding options $ 0  
Aggregate intrinsic value, exercisable options $ 0  
v3.25.4
Incentive and Share-Based Compensation - Performance Share Units ("PSUs") (Details) - Performance share units - $ / shares
shares in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Fair value assumptions:      
Weighted average fair value (usd per share) $ 71.27    
Number of Units (in thousands)      
Outstanding at beginning of period (in shares) 989    
Granted (in shares) 609    
Vested (in shares) (258)    
Forfeited (in shares) (133)    
Outstanding at end of period (in shares) 1,207 989  
Weighted Average  Grant Date Fair Value (per share)      
Outstanding at beginning of period (in dollars per share) $ 101.94    
Granted (usd per share) 71.27    
Vested (in dollars per share) 93.84    
Forfeited (in dollars per share) 86.72    
Outstanding at end of period (in dollars per share) 89.87 $ 101.94  
Monte-Carlo Simulation      
Fair value assumptions:      
Weighted average fair value (usd per share) $ 98.74 $ 133.75 $ 128.95
Expected volatility of LyondellBasell N.V. common stock (in percent) 25.00% 28.60% 38.04%
Average correlation coefficient of peer companies (in percent) 0.54 0.56 0.52
Risk-free interest rate (in percent) 4.01% 4.47% 4.39%
Weighted Average  Grant Date Fair Value (per share)      
Granted (usd per share) $ 98.74 $ 133.75 $ 128.95
Minimum | Monte-Carlo Simulation      
Fair value assumptions:      
Expected volatility of peer companies (in percent) 23.85% 24.68% 22.82%
Maximum | Monte-Carlo Simulation      
Fair value assumptions:      
Expected volatility of peer companies (in percent) 43.97% 43.42% 52.73%
v3.25.4
Income Taxes - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Tax Contingency [Line Items]      
Effective tax rate (in percent) (9.80%)    
Deferred taxes on unremitted earnings of certain equity joint ventures and subsidiaries $ 41 $ 57  
Undistributed earnings of foreign subsidiaries 600    
Tax attributes 3,142 1,968  
Deferred tax assets tax attributes 672 420 $ 307
Deferred tax asset on tax attributes that more likely than not will be realized 379    
Tax benefits related to statute of limitations 49 0 0
Uncertain tax expense (benefit) 5 18 21
Settlement amounts 73 66 0
Unrecognized tax benefits, income tax penalties and interest expense 16 15 11
Interest and penalties accrued on uncertain tax positions 82 67 52
Deferred income taxes 235    
Net income taxes paid $ 393 $ 343 $ 465
United States      
Income Tax Contingency [Line Items]      
Corporate income tax rate (in percent) 21.00%    
United Kingdom      
Income Tax Contingency [Line Items]      
Corporate income tax rate (in percent) 25.00%    
Netherlands      
Income Tax Contingency [Line Items]      
Corporate income tax rate (in percent) 25.80%    
v3.25.4
Income Taxes - Components of income tax provision (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Current:      
U.S. federal $ 116 $ 419 $ 117
Non-U.S. 145 198 160
State (7) 48 24
Total current 254 665 301
Deferred:      
U.S. federal (205) (140) 154
Non-U.S. 11 (279) (36)
State 10 13 14
Total deferred (184) (406) 132
Provision for income taxes before tax effects of other comprehensive income 70 259 433
Tax effects of elements of other comprehensive income:      
Total income tax expense (benefit) in comprehensive income (10) 340 340
Pension and post-retirement liabilities      
Tax effects of elements of other comprehensive income:      
Tax effects of elements of other comprehensive income 19 (1) (36)
Financial derivatives      
Tax effects of elements of other comprehensive income:      
Tax effects of elements of other comprehensive income (8) 38 (29)
Foreign currency translation      
Tax effects of elements of other comprehensive income:      
Tax effects of elements of other comprehensive income $ (91) $ 44 $ (28)
v3.25.4
Income Taxes - Reconciliation of tax expense at US statutory rate and provision for taxes (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income (loss) from continuing operations before income taxes:      
U.S. $ (219) $ 1,783 $ 1,630
Non-U.S. (496) (82) 669
Income (loss) from continuing operations before income taxes (715) 1,701 2,299
Income tax at U.S. statutory rate (150) 358 483
State and local income tax, net of federal income tax effect 14 55 34
Change in deferred tax on outside basis differences (13)    
Deemed income inclusion 12 19 14
Deduction of non-U.S. taxes paid (12)    
Tax credits (5)    
Nontaxable or nondeductible items:      
Export incentive (46)    
Other 13    
Other adjustments (2) 37 17
Nondeductible impairment   28 62
Statutory income tax rate differential   (102) 4
Tax refund claim (24)    
Foreign currency gain or loss 63 (27) 8
Changes in unrecognized tax benefits 5 18 21
Provision for income taxes before tax effects of other comprehensive income $ 70 $ 259 $ 433
Percent      
Income tax at U.S. statutory rate 21.00%    
State and local income tax, net of federal income tax effect (2.00%)    
Change in deferred tax on outside basis differences 1.80%    
Deemed income inclusion (1.70%)    
Deduction of non-U.S. taxes paid 1.70%    
Tax credits 0.70%    
Nontaxable or nondeductible items:      
Export incentive 6.40%    
Other (1.80%)    
Other adjustments 0.30%    
Tax refund claim 3.40%    
Foreign currency gain or loss (8.80%)    
Changes in unrecognized tax benefits (0.70%)    
Provision for income taxes (9.80%)    
China      
Nontaxable or nondeductible items:      
Other adjustments $ 9    
Nondeductible impairment $ 11    
Nontaxable or nondeductible items:      
Other adjustments (1.20%)    
Nondeductible impairment (1.50%)    
France      
Nontaxable or nondeductible items:      
Nondeductible impairment $ 17    
Statutory income tax rate differential $ 8    
Nontaxable or nondeductible items:      
Nondeductible impairment (2.40%)    
Statutory income tax rate differential (1.10%)    
Germany      
Income (loss) from continuing operations before income taxes:      
State and local income tax, net of federal income tax effect $ (33)    
Change in deferred tax on outside basis differences (24)    
Changes in valuation allowances 17    
Nontaxable or nondeductible items:      
Other adjustments (3)    
Statutory income tax rate differential $ 11    
Percent      
State and local income tax, net of federal income tax effect 4.60%    
Change in deferred tax on outside basis differences 3.40%    
Nontaxable or nondeductible items:      
Other adjustments 0.40%    
Statutory income tax rate differential (1.50%)    
Changes in valuation allowances (2.40%)    
Italy      
Nontaxable or nondeductible items:      
Other adjustments $ 3    
Nondeductible impairment $ 8    
Nontaxable or nondeductible items:      
Other adjustments (0.40%)    
Nondeductible impairment (1.10%)    
Malta      
Nontaxable or nondeductible items:      
Statutory income tax rate differential $ (101)    
Nontaxable or nondeductible items:      
Statutory income tax rate differential 14.10%    
Mexico      
Nontaxable or nondeductible items:      
Other adjustments $ 4    
Nondeductible impairment $ 30    
Nontaxable or nondeductible items:      
Other adjustments (0.60%)    
Nondeductible impairment (4.20%)    
The Netherlands      
Income (loss) from continuing operations before income taxes:      
Changes in valuation allowances $ 13    
Nontaxable or nondeductible items:      
Other adjustments 10    
Nondeductible impairment 125    
Statutory income tax rate differential $ 9    
Nontaxable or nondeductible items:      
Other adjustments (1.40%)    
Nondeductible impairment (17.50%)    
Statutory income tax rate differential (1.30%)    
Changes in valuation allowances (1.80%)    
United Kingdom      
Income (loss) from continuing operations before income taxes:      
Changes in valuation allowances $ 85    
Nontaxable or nondeductible items:      
Other adjustments $ 9    
Nontaxable or nondeductible items:      
Other adjustments (1.30%)    
Changes in valuation allowances (11.90%)    
Other      
Nontaxable or nondeductible items:      
Statutory income tax rate differential $ 7    
Nontaxable or nondeductible items:      
Statutory income tax rate differential (1.00%)    
v3.25.4
Income Taxes - Reconciliation of tax expense at US statutory rate and provision for taxes (Prior to ASU 2023-09) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income (loss) from continuing operations before income taxes:      
U.S. $ (219) $ 1,783 $ 1,630
Non-U.S. (496) (82) 669
Income (loss) from continuing operations before income taxes (715) 1,701 2,299
Income tax expense (benefit), continuing operations, income tax reconciliation [Abstract]      
Income tax at U.S. statutory rate (150) 358 483
Increase (reduction) resulting from:      
Non-U.S. income/(loss) taxed at different statutory rates   (102) 4
Return to accrual adjustments   (26) (22)
State income taxes, net of federal benefit 14 55 34
Exempt income   (101) (203)
Uncertain tax positions 5 18 21
Patent box ruling   0 (31)
Nondeductible impairments   28 62
Audit settlement   0 46
Foreign currency gain or loss 63 (27) 8
Cross border tax effects 12 19 14
Other, net (2) 37 17
Provision for income taxes before tax effects of other comprehensive income $ 70 $ 259 $ 433
v3.25.4
Income Taxes - Components of deferred tax liabilities and assets (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Deferred tax liabilities:      
Accelerated tax depreciation $ 2,342 $ 2,342  
Investment in joint venture partnerships 416 455  
Inventory 101 194  
Operating lease assets 342 330  
Other liabilities 53 78  
Total deferred tax liabilities 3,254 3,399  
Deferred tax assets:      
Tax attributes 672 420 $ 307
Employee benefit plans 186 248  
Operating lease liabilities 380 387  
Other assets 205 203  
Total deferred tax assets 1,443 1,258  
Deferred tax asset valuation allowances (293) (135) $ (78)
Net deferred tax assets 1,150 1,123  
Net deferred tax liabilities 2,104 2,276  
Deferred Tax Assets, Net [Abstract]      
Deferred tax assets—long-term 212 259  
Deferred tax liabilities—long-term 2,316 2,535  
Net deferred tax liabilities $ 2,104 $ 2,276  
v3.25.4
Income Taxes - Tax attributes and related deferred tax asset (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Tax attributes and related deferred tax assets [Line Items]      
Tax attributes $ 3,142 $ 1,968  
Deferred Tax on Tax Attributes 672 420 $ 307
Germany      
Tax attributes and related deferred tax assets [Line Items]      
Deferred Tax on Tax Attributes 215 107 3
U.S.      
Tax attributes and related deferred tax assets [Line Items]      
Deferred Tax on Tax Attributes 128 114 151
United Kingdom      
Tax attributes and related deferred tax assets [Line Items]      
Deferred Tax on Tax Attributes 112 105 91
France      
Tax attributes and related deferred tax assets [Line Items]      
Deferred Tax on Tax Attributes 109 21 23
The Netherlands      
Tax attributes and related deferred tax assets [Line Items]      
Deferred Tax on Tax Attributes 67 35 18
Other      
Tax attributes and related deferred tax assets [Line Items]      
Deferred Tax on Tax Attributes 41 $ 38 $ 21
2026      
Tax attributes and related deferred tax assets [Line Items]      
Tax attributes 23    
Deferred Tax on Tax Attributes 2    
2027      
Tax attributes and related deferred tax assets [Line Items]      
Tax attributes 32    
Deferred Tax on Tax Attributes 5    
2028      
Tax attributes and related deferred tax assets [Line Items]      
Tax attributes 30    
Deferred Tax on Tax Attributes 8    
2029      
Tax attributes and related deferred tax assets [Line Items]      
Tax attributes 37    
Deferred Tax on Tax Attributes 4    
2030      
Tax attributes and related deferred tax assets [Line Items]      
Tax attributes 27    
Deferred Tax on Tax Attributes 3    
Thereafter      
Tax attributes and related deferred tax assets [Line Items]      
Tax attributes 758    
Deferred Tax on Tax Attributes 51    
Indefinite      
Tax attributes and related deferred tax assets [Line Items]      
Tax attributes 2,235    
Deferred Tax on Tax Attributes $ 599    
v3.25.4
Income Taxes - Valuation allowances by jurisdiction (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Valuation allowance [Line Items]      
Valuation allowance $ 293 $ 135 $ 78
United Kingdom      
Valuation allowance [Line Items]      
Valuation allowance 115 30 30
Germany      
Valuation allowance [Line Items]      
Valuation allowance 101 43 1
U.S.      
Valuation allowance [Line Items]      
Valuation allowance 35 24 15
The Netherlands      
Valuation allowance [Line Items]      
Valuation allowance 21 5 3
France      
Valuation allowance [Line Items]      
Valuation allowance 0 21 23
Other      
Valuation allowance [Line Items]      
Valuation allowance $ 21 $ 12 $ 6
v3.25.4
Income Taxes - Unrecognized tax benefits (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Unrecognized tax benefits [Abstract]      
Unrecognized tax benefit, beginning of period $ 236 $ 288 $ 271
Additions for tax positions of current year 0 14 37
Additions for tax positions of prior years 128 15 2
Reductions for tax positions of prior years (3) (15) (22)
Reductions resulting from the lapse of statutes of limitations (49) 0 0
Settlements (payments/refunds) (73) (66) 0
Unrecognized tax benefit, end of period $ 239 $ 236 $ 288
v3.25.4
Income Taxes - Income taxes paid (net of refunds) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Tax Contingency [Line Items]      
U.S. federal $ 307    
U.S. state 32    
Net income taxes paid 393 $ 343 $ 465
France      
Income Tax Contingency [Line Items]      
Non-U.S. (26)    
The Netherlands      
Income Tax Contingency [Line Items]      
Non-U.S. 24    
Germany      
Income Tax Contingency [Line Items]      
Non-U.S. (20)    
Hong Kong      
Income Tax Contingency [Line Items]      
Non-U.S. 23    
Other      
Income Tax Contingency [Line Items]      
Non-U.S. $ 53    
v3.25.4
Commitments and Contingencies - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Loss Contingencies [Line Items]      
Accrual for environmental loss contingencies $ 178 $ 140 $ 124
Accrued environmental liabilities held for sale 74    
Minimum      
Loss Contingencies [Line Items]      
Site contingency, accrued liabilities $ 1    
Technology licensing contracts indemnification period (in years) 5 years    
Maximum      
Loss Contingencies [Line Items]      
Site contingency, accrued liabilities $ 50    
Technology licensing contracts indemnification period (in years) 10 years    
v3.25.4
Commitments and Contingencies - Accrual environmental liability (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Accrual for environmental loss contingencies [Roll Forward]    
Beginning balance $ 140 $ 124
Changes in estimates 45 29
Amounts paid (10) (10)
Foreign exchange effects 6 (3)
Other (3) 0
Ending balance $ 178 $ 140
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] Accrued and other current liabilities, Liabilities held for sale, Other liabilities Accrued and other current liabilities, Liabilities held for sale, Other liabilities
v3.25.4
Shareholders' Equity and Redeemable Non-controlling Interests - Dividend distribution (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2025
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2025
Dec. 31, 2024
Shareholders' Equity and Redeemable Non-controlling Interests [Abstract]                    
Dividend per ordinary share (usd per share) $ 1.37 $ 1.37 $ 1.37 $ 1.34 $ 1.34 $ 1.34 $ 1.34 $ 1.25 $ 5.45 $ 5.27
Aggregate Dividends Paid $ 443 $ 443 $ 445 $ 433 $ 437 $ 437 $ 438 $ 408 $ 1,764 $ 1,720
v3.25.4
Shareholders' Equity and Redeemable Non-controlling Interests - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
Feb. 20, 2026
Nov. 30, 2025
Aug. 31, 2025
May 31, 2025
Feb. 28, 2025
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
May 31, 2024
May 31, 2023
Share repurchase authorization [Line Items]                    
Common stock, dividends per share (in dollars per share)           $ 5.45 $ 5.27 $ 4.94    
Cash paid for shares repurchased           $ 201 $ 195 $ 211    
Cumulative perpetual redeemable non-controlling interests, shares outstanding           112,964 113,053      
Cumulative redeemable non-controlling interest stock redeemed during the period, in shares           89 22 396    
Cumulative redeemable non-controlling interest stock redeemed during the period, in value           $ 1 $ 1 $ 1    
Redeemable non-controlling interests, dividends per share (in dollars per share)   $ 15.00 $ 15.00 $ 15.00 $ 15.00 $ 60.00 $ 60.00 $ 60.00    
Dividends on redeemable non-controlling interests           $ 7 $ 7 $ 7    
Subsequent Event                    
Share repurchase authorization [Line Items]                    
Common stock, dividends per share (in dollars per share) $ 0.69                  
Reduction from prior period dividend (in dollars per share) $ 0.68                  
2025 Share Repurchase Authorization                    
Share repurchase authorization [Line Items]                    
Stock repurchase authorization shares authorized to be repurchased (in shares)       34,000,000.0            
2024 Share Repurchase Authorization                    
Share repurchase authorization [Line Items]                    
Stock repurchase authorization shares authorized to be repurchased (in shares)                 34,000,000.0  
2023 Share Repurchase Authorization                    
Share repurchase authorization [Line Items]                    
Stock repurchase authorization shares authorized to be repurchased (in shares)                   34,000,000.0
v3.25.4
Shareholders' Equity and Redeemable Non-controlling Interests - Share repurchase activity (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Share repurchase authorization [Line Items]      
Shares repurchased (in shares) 3,037,987 2,236,348 2,349,207
Average purchase price (in dollars per share) $ 66.01 $ 88.42 $ 89.82
Total Purchase Price, Including Commissions and Fees $ 201 $ 198 $ 211
2024 Share Repurchase Authorization      
Share repurchase authorization [Line Items]      
Shares repurchased (in shares) 3,037,987 2,236,348  
Average purchase price (in dollars per share) $ 66.01 $ 88.42  
Total Purchase Price, Including Commissions and Fees $ 201 $ 198  
2022 Share Repurchase Authorization      
Share repurchase authorization [Line Items]      
Shares repurchased (in shares)     1,365,898
Average purchase price (in dollars per share)     $ 88.98
Total Purchase Price, Including Commissions and Fees     $ 122
2023 Share Repurchase Authorization      
Share repurchase authorization [Line Items]      
Shares repurchased (in shares)     983,309
Average purchase price (in dollars per share)     $ 90.99
Total Purchase Price, Including Commissions and Fees     $ 89
v3.25.4
Shareholders' Equity and Redeemable Non-controlling Interests - Ordinary shares (Details) - shares
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Ordinary shares outstanding: [Abstract]      
Beginning balance (in shares) 323,889,832    
Purchase of ordinary shares (in shares) (3,037,987) (2,236,348) (2,349,207)
Ending balance (in shares) 322,084,769 323,889,832  
Ordinary shares      
Ordinary shares outstanding: [Abstract]      
Beginning balance (in shares) 323,889,832 324,483,402 325,723,567
Share-based compensation (in shares) 621,601 1,278,115 793,984
Employee stock purchase plan (in shares) 611,323 364,663 315,058
Purchase of ordinary shares (in shares) (3,037,987) (2,236,348) (2,349,207)
Ending balance (in shares) 322,084,769 323,889,832 324,483,402
v3.25.4
Shareholders' Equity and Redeemable Non-controlling Interests - Treasury shares (Details) - shares
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Ordinary shares outstanding: [Abstract]      
Beginning balance (in shares) 16,532,666    
Purchase of ordinary shares (in shares) 3,037,987 2,236,348 2,349,207
Ending balance (in shares) 18,337,729 16,532,666  
Treasury shares      
Ordinary shares outstanding: [Abstract]      
Beginning balance (in shares) 16,532,666 15,939,096 14,698,931
Share-based compensation (in shares) (621,601) (1,278,115) (793,984)
Employee stock purchase plan (in shares) (611,323) (364,663) (315,058)
Purchase of ordinary shares (in shares) 3,037,987 2,236,348 2,349,207
Ending balance (in shares) 18,337,729 16,532,666 15,939,096
v3.25.4
Shareholders' Equity and Redeemable Non-controlling Interests - Components of accumulated other comprehensive income (loss) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance $ 12,474    
Other comprehensive income (loss) before reclassifications 68 $ (95) $ (275)
Tax benefit before reclassifications 99 (52) 113
Amounts reclassified from accumulated other comprehensive loss 74 120 78
Tax expense (19) (29) (20)
Total other comprehensive income (loss), net of tax 222 (56) (104)
Ending balance 10,093 12,474  
AOCI Attributable to Parent      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance (1,532) (1,476) (1,372)
Total other comprehensive income (loss), net of tax 222 (56) (104)
Ending balance (1,310) (1,532) (1,476)
Financial derivatives      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance (111) (226) (146)
Other comprehensive income (loss) before reclassifications (92) 51 (178)
Tax benefit before reclassifications 23 (13) 47
Amounts reclassified from accumulated other comprehensive loss 62 102 69
Tax expense (15) (25) (18)
Total other comprehensive income (loss), net of tax (22) 115 (80)
Ending balance (133) (111) (226)
Defined Benefit Pension and Other Post-retirement Benefit Plans      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance (281) (279) (182)
Other comprehensive income (loss) before reclassifications 52 (21) (142)
Tax benefit before reclassifications (15) 5 38
Amounts reclassified from accumulated other comprehensive loss 12 18 9
Tax expense (4) (4) (2)
Total other comprehensive income (loss), net of tax 45 (2) (97)
Ending balance (236) (281) (279)
Foreign Currency Translation Adjustments      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance (1,140) (971) (1,044)
Other comprehensive income (loss) before reclassifications 108 (125) 45
Tax benefit before reclassifications 91 (44) 28
Amounts reclassified from accumulated other comprehensive loss 0 0 0
Tax expense 0 0 0
Total other comprehensive income (loss), net of tax 199 (169) 73
Ending balance $ (941) $ (1,140) $ (971)
v3.25.4
Shareholders' Equity and Redeemable Non-controlling Interests - Reclassification out of accumulated other comprehensive income (loss) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Reclassification adjustments out of accumulated other comprehensive income (loss) [Line Items]      
Sales and other operating revenues: $ 30,153 $ 33,394 $ 33,336
Cost of sales 27,576 28,750 28,435
Interest expense (income) 487 481 477
Other income (expense), net 113 47 (58)
Provision for income taxes 70 259 433
Total reclassifications, before tax (715) 1,701 2,299
Amounts reclassified out of accumulated other comprehensive income (loss)      
Reclassification adjustments out of accumulated other comprehensive income (loss) [Line Items]      
Provision for income taxes (19) (29) (20)
Total reclassifications, before tax 74 120 78
Total reclassifications, after tax 55 91 58
Financial derivatives | Amounts reclassified out of accumulated other comprehensive income (loss)      
Reclassification adjustments out of accumulated other comprehensive income (loss) [Line Items]      
Provision for income taxes (15) (25) (18)
Total reclassifications, after tax 47 77 51
Financial derivatives | Amounts reclassified out of accumulated other comprehensive income (loss) | Commodities      
Reclassification adjustments out of accumulated other comprehensive income (loss) [Line Items]      
Cost of sales 22 129 33
Financial derivatives | Amounts reclassified out of accumulated other comprehensive income (loss) | Foreign currency      
Reclassification adjustments out of accumulated other comprehensive income (loss) [Line Items]      
Interest expense (income) 36 (35) 31
Financial derivatives | Amounts reclassified out of accumulated other comprehensive income (loss) | Interest rates      
Reclassification adjustments out of accumulated other comprehensive income (loss) [Line Items]      
Interest expense (income) 4 4 5
Defined Benefit Pension and Other Post-retirement Benefit Plans | Amounts reclassified out of accumulated other comprehensive income (loss)      
Reclassification adjustments out of accumulated other comprehensive income (loss) [Line Items]      
Provision for income taxes (4) (4) (2)
Total reclassifications, after tax 8 14 7
Settlement gain | Amounts reclassified out of accumulated other comprehensive income (loss)      
Reclassification adjustments out of accumulated other comprehensive income (loss) [Line Items]      
Other income (expense), net (1) 0 0
Actuarial loss | Amounts reclassified out of accumulated other comprehensive income (loss)      
Reclassification adjustments out of accumulated other comprehensive income (loss) [Line Items]      
Other income (expense), net 13 15 6
Prior service cost | Amounts reclassified out of accumulated other comprehensive income (loss)      
Reclassification adjustments out of accumulated other comprehensive income (loss) [Line Items]      
Other income (expense), net 3 3 3
Curtailment gain | Amounts reclassified out of accumulated other comprehensive income (loss)      
Reclassification adjustments out of accumulated other comprehensive income (loss) [Line Items]      
Other income (expense), net (3) 0 0
Financial Derivatives | Amounts reclassified out of accumulated other comprehensive income (loss) | Commodities      
Reclassification adjustments out of accumulated other comprehensive income (loss) [Line Items]      
Sales and other operating revenues: $ 0 $ 4 $ 0
v3.25.4
Per Share Data - Earnings per share, basic and diluted (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Earnings Per Share Basic And Diluted [Line Items]      
Net income (loss) $ (738) $ 1,367 $ 2,121
Dividends on redeemable non-controlling interests $ (7) $ (7) $ (7)
Earnings (loss) per share:      
Basic from continuing operations (in dollars in per share) $ (2.48) $ 4.40 $ 5.70
Basic from discontinued operations (in dollars per share) 0.14 (0.24) 0.78
Diluted from continuing operations (in dollars in per share) (2.48) 4.39 5.68
Diluted from discontinued operations (in dollars per share) $ 0.14 $ (0.24) $ 0.78
Continuing operations      
Earnings Per Share Basic And Diluted [Line Items]      
Net income (loss) $ (785) $ 1,442 $ 1,866
Dividends on redeemable non-controlling interests (7) (7) (7)
Net income attributable to participating securities, Basic (7) (6) (7)
Net income attributable to participating securities, Diluted (7) (6) (7)
Net income (loss) attributable to ordinary shareholders - Basic (799) 1,429 1,852
Net income (loss) attributable to ordinary shareholders, Diluted $ (799) $ 1,429 $ 1,852
Weighted average number of shares outstanding reconciliation [Abstract]      
Basic weighted average common stock outstanding (in share) 322 325 325
Effect of dilutive securities (in shares) 0 1 1
Potential dilutive shares (in shares) 322 326 326
Discontinued operations      
Earnings Per Share Basic And Diluted [Line Items]      
Net income (loss) $ 47 $ (75) $ 255
Dividends on redeemable non-controlling interests 0 0 0
Net income attributable to participating securities, Basic 0 0 0
Net income attributable to participating securities, Diluted 0 0 0
Net income (loss) attributable to ordinary shareholders - Basic 47 (75) 255
Net income (loss) attributable to ordinary shareholders, Diluted $ 47 $ (75) $ 255
Weighted average number of shares outstanding reconciliation [Abstract]      
Basic weighted average common stock outstanding (in share) 322 325 325
Effect of dilutive securities (in shares) 0 1 1
Potential dilutive shares (in shares) 322 326 326
v3.25.4
Segment and Related Information - Summarized financial information (Details)
$ in Millions
12 Months Ended
Dec. 31, 2025
USD ($)
segment
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Segment Reporting Information [Line Items]      
Number of reportable segments | segment 5    
Revenues $ 30,153 $ 33,394 $ 33,336
Cost of sales 27,576 28,750 28,435
Impairments 1,251 949 518
Impairments     507
(Income) loss from equity investments 12 217 20
(Gain) loss on sale of business 6 (284) 0
Other items 1,633 1,618 1,620
Depreciation and amortization expense 1,390 1,372 1,376
EBITDA 1,065 3,516 4,130
Capital expenditures 1,878 1,808 1,499
O&P - Americas      
Segment Reporting Information [Line Items]      
Revenues 7,669 8,791 8,333
Cost of sales 8,873 9,261 9,146
Impairments 9 0 25
(Income) loss from equity investments (37) (13) (49)
(Gain) loss on sale of business 0 0  
Other items 464 459 442
Depreciation and amortization expense 652 619 587
EBITDA 1,144 2,445 2,303
Capital expenditures 793 635 480
O&P - EAI      
Segment Reporting Information [Line Items]      
Revenues 9,611 10,188 9,822
Cost of sales 9,963 10,529 10,165
Impairments 460 892 38
(Income) loss from equity investments 52 217 55
(Gain) loss on sale of business 0 0  
Other items 412 440 437
Depreciation and amortization expense 203 220 207
EBITDA (457) (991) (9)
Capital expenditures 461 525 273
I&D      
Segment Reporting Information [Line Items]      
Revenues 8,953 10,219 10,917
Cost of sales 8,347 9,208 9,383
Impairments 0 2 192
(Income) loss from equity investments (3) 13 13
(Gain) loss on sale of business 0 (284)  
Other items 256 222 262
Depreciation and amortization expense 409 401 443
EBITDA 878 1,664 1,679
Capital expenditures 433 445 590
APS      
Segment Reporting Information [Line Items]      
Revenues 3,457 3,616 3,686
Cost of sales 3,074 3,271 3,393
Impairments 782 55 252
(Income) loss from equity investments 0 0 1
(Gain) loss on sale of business 6 0  
Other items 344 344 312
Depreciation and amortization expense 83 90 98
EBITDA (651) 54 (162)
Capital expenditures 99 105 75
Technology      
Segment Reporting Information [Line Items]      
Revenues 463 580 578
Cost of sales 280 211 210
Impairments 0 0 0
(Income) loss from equity investments 0 0 0
(Gain) loss on sale of business 0 0  
Other items 132 123 119
Depreciation and amortization expense 43 42 41
EBITDA 180 379 375
Capital expenditures 92 95 69
Other      
Segment Reporting Information [Line Items]      
Revenues 0 0 0
Cost of sales (2,961) (3,730) (3,862)
Impairments 0 0 0
(Income) loss from equity investments 0 0 0
(Gain) loss on sale of business 0 0  
Other items 25 30 48
Depreciation and amortization expense 0 0 0
EBITDA (29) (35) (56)
Capital expenditures 0 3 12
Intersegment Eliminations      
Segment Reporting Information [Line Items]      
Revenues 0 0 0
Intersegment Eliminations | O&P - Americas      
Segment Reporting Information [Line Items]      
Revenues 2,132 2,742 2,947
Intersegment Eliminations | O&P - EAI      
Segment Reporting Information [Line Items]      
Revenues 616 679 657
Intersegment Eliminations | I&D      
Segment Reporting Information [Line Items]      
Revenues 116 205 169
Intersegment Eliminations | APS      
Segment Reporting Information [Line Items]      
Revenues 15 18 12
Intersegment Eliminations | Technology      
Segment Reporting Information [Line Items]      
Revenues 86 91 85
Intersegment Eliminations | Other      
Segment Reporting Information [Line Items]      
Revenues (2,965) (3,735) (3,870)
Operating Segments      
Segment Reporting Information [Line Items]      
Revenues 30,153 33,394 33,336
Operating Segments | O&P - Americas      
Segment Reporting Information [Line Items]      
Revenues 9,801 11,533 11,280
Operating Segments | O&P - EAI      
Segment Reporting Information [Line Items]      
Revenues 10,227 10,867 10,479
Operating Segments | I&D      
Segment Reporting Information [Line Items]      
Revenues 9,069 10,424 11,086
Operating Segments | APS      
Segment Reporting Information [Line Items]      
Revenues 3,472 3,634 3,698
Operating Segments | Technology      
Segment Reporting Information [Line Items]      
Revenues 549 671 663
Operating Segments | Other      
Segment Reporting Information [Line Items]      
Revenues $ (2,965) $ (3,735) $ (3,870)
v3.25.4
Segment and Related Information - Reconciliation of EBITDA to income (loss) from continuing operations before income taxes (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
EBITDA:      
Total segment EBITDA $ 1,094 $ 3,551 $ 4,186
Other EBITDA (29) (35) (56)
Less:      
Depreciation and amortization expense (1,390) (1,372) (1,376)
Interest expense (487) (481) (477)
Indirect SG&A expense reallocation to continuing operations 0 (112) (107)
Add:      
Interest income 97 150 129
Income (loss) from continuing operations before income taxes $ (715) $ 1,701 $ 2,299
v3.25.4
Segment and Related Information - Long-lived assets by segments (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Segment reporting asset reconciling items [Line Items]      
Property, plant and equipment, net $ 15,833 $ 15,066  
Equity investments 3,963 4,121 $ 3,907
Goodwill 708 1,561 1,647
O&P - Americas      
Segment reporting asset reconciling items [Line Items]      
Property, plant and equipment, net 6,775 6,592  
Equity investments 1,958 2,011  
Goodwill 475 472 477
O&P - EAI      
Segment reporting asset reconciling items [Line Items]      
Property, plant and equipment, net 1,642 1,553  
Equity investments 1,658 1,732  
Goodwill 0 355 380
I&D      
Segment reporting asset reconciling items [Line Items]      
Property, plant and equipment, net 6,123 5,670  
Equity investments 346 377  
Goodwill 225 209 215
APS      
Segment reporting asset reconciling items [Line Items]      
Property, plant and equipment, net 607 655  
Equity investments 1 1  
Goodwill 0 517 567
Technology      
Segment reporting asset reconciling items [Line Items]      
Property, plant and equipment, net 686 596  
Equity investments 0 0  
Goodwill $ 8 $ 8 $ 8
v3.25.4
Segment and Related Information - Long-lived assets by geographic location (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Long-Lived Assets [Line Items]    
Total $ 20,246 $ 19,764
U.S.    
Long-Lived Assets [Line Items]    
Total 14,551 14,456
Germany    
Long-Lived Assets [Line Items]    
Total 2,012 1,691
The Netherlands    
Long-Lived Assets [Line Items]    
Total 830 784
Italy    
Long-Lived Assets [Line Items]    
Total 496 399
Mexico    
Long-Lived Assets [Line Items]    
Total 226 257
France    
Long-Lived Assets [Line Items]    
Total 184 171
Poland    
Long-Lived Assets [Line Items]    
Total 168 173
China    
Long-Lived Assets [Line Items]    
Total 120 124
Thailand    
Long-Lived Assets [Line Items]    
Total 116 123
Other    
Long-Lived Assets [Line Items]    
Total $ 1,543 $ 1,586