Asset Retirement Obligations and Accrued Environmental Costs - Schedule of Asset Retirement Obligations and Accrual for Environmental Costs (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Asset Retirement Obligation And Accrual For Environmental Cost Disclosure [Abstract] | |||
| Asset retirement obligations | $ 721 | $ 771 | $ 537 |
| Accrued environmental costs | 506 | 439 | |
| Total asset retirement obligations and accrued environmental costs | 1,227 | 1,210 | |
| Asset retirement obligations and accrued environmental costs due within one year | (205) | (81) | |
| Long-term asset retirement obligations and accrued environmental costs | $ 1,022 | $ 1,129 | |
| Environmental Loss Contingency, Statement of Financial Position Flag | Other Liabilities, Current | Other Liabilities, Current |
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- Definition Asset Retirement Obligation And Accrual For Environmental Cost Disclosure No definition available.
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- Definition The carrying amount of a liability for an asset retirement obligation and total costs accrued as of the balance sheet date for environmental loss contingencies. No definition available.
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- Definition Current portion of the carrying amount of a liability for an asset retirement obligation and total costs accrued as of the balance sheet date for environmental loss contingencies. No definition available.
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- Definition Asset Retirement Obligation And Accrual For Environmental Loss Contingencies, Noncurrent No definition available.
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- Definition Total costs accrued as of the balance sheet date for environmental loss contingencies. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Indicates line item in statement of financial position that includes accrual for environmental loss contingency. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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