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Supplemental Cash Flow Information (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Supplemental disclosures:    
Cash received for income taxes, net of payments $ 0 $ (4)
Cash paid for interest 65 49
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash flows from operating leases 8 8
Operating cash flows from finance leases 3 3
Financing cash flows from finance leases 3 3
Non-cash investing and financing activities:    
Change in capital expenditures included in accounts payable 25 (4)
Non-cash dividends to CVR Energy stockholders $ 251 $ 0