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Segment Reporting - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Energy Segment
Disaggregation of Revenue [Line Items]
Disaggregated revenue	$ 2,373	$ 1,463
Automotive Segment
Disaggregation of Revenue [Line Items]
Disaggregated revenue	554	598
Petroleum products | Energy Segment
Disaggregation of Revenue [Line Items]
Disaggregated revenue	2,150	1,402
Nitrogen fertilizer products | Energy Segment
Disaggregation of Revenue [Line Items]
Disaggregated revenue	223	61
Automotive services | Automotive Segment
Disaggregation of Revenue [Line Items]
Disaggregated revenue	353	327
Aftermarket parts sales | Automotive Segment
Disaggregation of Revenue [Line Items]
Disaggregated revenue	$ 201	$ 271

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