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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 | Dec. 31, 2022
--- | --- | --- | --- | ---
Deferred Tax Liabilities |  |  |  |
PP&E and intangibles | $ 16,244 | $ 15,609 |  |
Inventory | 15 | 91 |  |
Other | 160 | 155 |  |
Total deferred tax liabilities | 16,419 | 15,855 |  |
Deferred Tax Assets |  |  |  |
Benefit plan accruals | 330 | 432 |  |
Asset retirement obligations and accrued environmental costs | 2,985 | 2,799 |  |
Investments in joint ventures | 2,356 | 2,269 |  |
Other financial accruals and deferrals | 507 | 497 |  |
Loss and credit carryforwards | 4,048 | 4,910 |  |
Other | 103 | 187 |  |
Total deferred tax assets | 10,329 | 11,094 |  |
Less: valuation allowance | (5,926) | (6,435) | $ (7,656) | $ (8,049)
Total deferred tax assets net of valuation allowance | 4,403 | 4,659 |  |
Net deferred tax liabilities | $ 12,016 | $ 11,196 |  |

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