Asset Retirement Obligations and Accrued Environmental Costs - Schedule of Asset Retirement Obligations and Accrued Environmental Costs (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
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| Asset Retirement Obligation Disclosure [Abstract] | ||
| Asset retirement obligations | $ 534 | $ 514 |
| Accrued environmental costs | 21 | 20 |
| Total asset retirement obligations and accrued environmental costs | 555 | 534 |
| Less: asset retirement obligations and accrued environmental costs due within one year | 55 | 40 |
| Asset retirement obligations and accrued environmental costs due after one year | $ 500 | $ 494 |
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- Definition Asset Retirement Obligation And Accrued Environmental Costs No definition available.
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- Definition Asset Retirement Obligation And Accrued Environmental Costs, Current No definition available.
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- Definition Asset Retirement Obligation And Accrued Environmental Costs, 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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- References No definition available.
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