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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		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Sales and other operating revenues
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) from commodity derivatives	$ 32	$ (16)	$ 86	$ 12
Other income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) from commodity derivatives	0	(2)	0	(1)
Purchased commodities
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) from commodity derivatives	$ (29)	$ 16	$ (79)	$ (56)

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