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Derivative and Financial Instruments - Schedule of Income Statement Location and Gain (Loss) Amounts of Derivatives (Details) - Commodity Contract - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Sales and other operating revenues
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) from commodity derivatives	$ 59	$ 54
Other income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) from commodity derivatives	(4)	0
Purchased commodities
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) from commodity derivatives	$ (39)	$ (50)

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-Name Accounting Standards Codification
-Section 50
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