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Commitments and Contingencies - Renewable Fuel Standard (Details) - Petroleum Segment - Environmental, Health, and Safety Matters - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Loss Contingencies [Line Items]
Expense (benefit) for compliance with RFS	$ 123	$ (51)
RFS obligation	$ 438		$ 323

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