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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		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Sales and other operating revenues
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) from commodity derivatives	$ 49	$ (11)	$ 135	$ 1
Other income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) from commodity derivatives	(2)	(5)	(2)	(6)
Purchased commodities
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) from commodity derivatives	$ (46)	$ 7	$ (125)	$ (49)

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-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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