Segment Reporting - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Energy
Disaggregation of Revenue [Line Items]
Disaggregated revenue	$ 1,834	$ 2,522	$ 5,663	$ 7,045
Automotive Segment
Disaggregation of Revenue [Line Items]
Disaggregated revenue	359	430	1,096	1,283
Lease revenue outside the scope of ASC 606	15	14	45	43
Total Automotive net sales and other revenues from operations	374	444	1,141	1,326
Petroleum products | Energy
Disaggregation of Revenue [Line Items]
Disaggregated revenue	1,709	2,392	5,277	6,505
Nitrogen fertilizer products | Energy
Disaggregation of Revenue [Line Items]
Disaggregated revenue	125	130	386	540
Automotive Services | Automotive Segment
Disaggregation of Revenue [Line Items]
Disaggregated revenue	355	406	1,074	1,167
Automotive Parts
Disaggregation of Revenue [Line Items]
Disaggregated revenue	$ 4	$ 24	$ 22	$ 116