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v3.25.4

Income Taxes - Schedule of Net Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Deferred tax assets: |  |
Net operating loss and other carryforwards | $ 1,940 | $ 1,812
Property, plant and equipment, net | 146 | 167
Reserves for environmental remediation and restoration | 61 | 52
Obligations for pension and other employee benefits | 46 | 42
Investments | 0 | 0
Grantor trusts | 604 | 603
Inventories, net | 12 | 14
Interest | 138 | 161
Lease liabilities | 51 | 45
Other accrued liabilities | 4 | 4
Intangible assets | 10 | 5
Other | 3 | 6
Total deferred tax assets | 3,015 | 2,911
Valuation allowance associated with deferred tax assets | (2,040) | (1,951)
Net deferred tax assets | 975 | 960
Deferred tax liabilities: |  |
Inventories, net | (7) | (7)
Property, plant and equipment, net | (291) | (250)
Intangible assets, net | 0 | 0
Lease assets | (50) | (44)
Foreign exchange | (2) | (1)
Interest | 0 | 0
Other | 0 | (2)
Total deferred tax liabilities | (350) | (304)
Net deferred tax asset | 625 | 656
Balance sheet classifications: |  |
Deferred tax assets — long-term | 833 | 830
Deferred tax liabilities — long-term | (208) | (174)
Net deferred tax asset | $ 625 | $ 656

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