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Segment Reporting - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Energy
Disaggregation of Revenue [Line Items]
Disaggregated revenue	$ 1,966	$ 2,237	$ 3,829	$ 4,523
Automotive Segment
Disaggregation of Revenue [Line Items]
Disaggregated revenue	368	412	737	853
Lease revenue outside scope ASC 606	15	13	30	29
Total Automotive net sales and other revenues from operations	383	425	767	882
Petroleum products | Energy
Disaggregation of Revenue [Line Items]
Disaggregated revenue	1,833	2,054	3,568	4,114
Nitrogen fertilizer products | Energy
Disaggregation of Revenue [Line Items]
Disaggregated revenue	133	183	261	409
Automotive Services | Automotive Segment
Disaggregation of Revenue [Line Items]
Disaggregated revenue	363	392	719	761
Aftermarket Parts
Disaggregation of Revenue [Line Items]
Disaggregated revenue	$ 5	$ 20	$ 18	$ 92

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