Financial and Derivative Instruments - Narrative (Details) bbl in Millions, $ in Millions |
3 Months Ended | 12 Months Ended | |
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Mar. 31, 2026
USD ($)
bbl
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Mar. 31, 2025
USD ($)
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Dec. 31, 2025
bbl
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| Derivative Instruments, Gain (Loss) [Line Items] | |||
| Gain (loss) reclassified from designated hedges | $ 10 | $ (17) | |
| Before-tax deferred gains in accumulated other comprehensive losses | 153 | ||
| Obligation to return cash not offset | $ 870 | ||
| Crude Oil | Commodity | |||
| Derivative Instruments, Gain (Loss) [Line Items] | |||
| Notional amount, volume | bbl | 40 | 29 | |
| Cash Flow Hedging | Sales and other operating revenues | |||
| Derivative Instruments, Gain (Loss) [Line Items] | |||
| Gain (loss) reclassified from designated hedges | $ 10 | $ (17) | |
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- Definition Deferred Gains (Losses) In Accumulated Other Comprehensive Losses Due To Outstanding Crude Oil Price Hedging Contracts No definition available.
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- Definition Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Nominal volume used to calculate payments on a derivative instrument. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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