Segment Reporting - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Energy Segment
Disaggregation of Revenue [Line Items]
Disaggregated revenue	$ 2,286	$ 2,373
Automotive Segment
Disaggregation of Revenue [Line Items]
Disaggregated revenue	441	554
Petroleum products \| Energy Segment
Disaggregation of Revenue [Line Items]
Disaggregated revenue	2,060	2,150
Nitrogen fertilizer products \| Energy Segment
Disaggregation of Revenue [Line Items]
Disaggregated revenue	226	223
Automotive services \| Automotive Segment
Disaggregation of Revenue [Line Items]
Disaggregated revenue	369	353
Aftermarket parts sales
Disaggregation of Revenue [Line Items]
Disaggregated revenue	$ 72	$ 201

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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+ Details