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Financial and Derivative Instruments - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Derivative Instruments, Gain (Loss) [Line Items]
Amount reclassified from designated hedges	$ (6)	$ 16	$ 34	$ 43
Deferred losses in accumulated other comprehensive losses due to outstanding crude oil price hedging contracts	$ (7)		(7)
Cash Flow Hedging | Sales and other operating revenues
Derivative Instruments, Gain (Loss) [Line Items]
Amount reclassified from designated hedges			$ 34	$ 43

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- Definition

Deferred Gains (Losses) In Accumulated Other Comprehensive Losses Due To Outstanding Crude Oil Price Hedging Contracts

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