Revenue - Revenue Disaggregated by Major Product (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 |
Disaggregation of Revenue [Line Items] | | | | |
Total revenue | $ 1,967 | $ 2,236 | $ 3,829 | $ 4,523 |
Revenue from product sales | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 1,895 | 2,211 | 3,742 | 4,470 |
Gasoline | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 944 | 1,092 | 1,831 | 2,102 |
Distillates | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 761 | 865 | 1,538 | 1,832 |
Ammonia | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 22 | 56 | 59 | 94 |
UAN | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 89 | 104 | 164 | 268 |
Urea products | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 8 | 7 | 14 | 15 |
Freight revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 14 | 16 | 25 | 30 |
Other products | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 57 | 71 | 111 | 129 |
Crude oil sales | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 72 | 24 | 86 | 52 |
Other revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Other revenue | 0 | 1 | 1 | 1 |
Petroleum Segment | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenue | 1,792 | 1,995 | 3,510 | 3,982 |
Nitrogen Fertilizer Segment | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenue | 133 | 183 | 261 | 409 |
Operating Segments | Petroleum Segment | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenue | 1,795 | 2,000 | 3,517 | 3,993 |
Operating Segments | Petroleum Segment | Revenue from product sales | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 1,723 | 1,975 | 3,430 | 3,940 |
Operating Segments | Petroleum Segment | Gasoline | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 944 | 1,092 | 1,831 | 2,102 |
Operating Segments | Petroleum Segment | Distillates | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 735 | 830 | 1,502 | 1,749 |
Operating Segments | Petroleum Segment | Ammonia | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 0 | 0 | 0 | 0 |
Operating Segments | Petroleum Segment | UAN | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 0 | 0 | 0 | 0 |
Operating Segments | Petroleum Segment | Urea products | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 0 | 0 | 0 | 0 |
Operating Segments | Petroleum Segment | Freight revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 5 | 5 | 9 | 8 |
Operating Segments | Petroleum Segment | Other products | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 39 | 48 | 88 | 81 |
Operating Segments | Petroleum Segment | Crude oil sales | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 72 | 24 | 86 | 52 |
Operating Segments | Petroleum Segment | Other revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Other revenue | 0 | 1 | 1 | 1 |
Operating Segments | Nitrogen Fertilizer Segment | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenue | 133 | 183 | 261 | 409 |
Operating Segments | Nitrogen Fertilizer Segment | Revenue from product sales | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 133 | 183 | 261 | 409 |
Operating Segments | Nitrogen Fertilizer Segment | Gasoline | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 0 | 0 | 0 | 0 |
Operating Segments | Nitrogen Fertilizer Segment | Distillates | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 0 | 0 | 0 | 0 |
Operating Segments | Nitrogen Fertilizer Segment | Ammonia | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 22 | 56 | 59 | 94 |
Operating Segments | Nitrogen Fertilizer Segment | UAN | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 89 | 104 | 164 | 268 |
Operating Segments | Nitrogen Fertilizer Segment | Urea products | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 8 | 7 | 14 | 15 |
Operating Segments | Nitrogen Fertilizer Segment | Freight revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 9 | 11 | 16 | 22 |
Operating Segments | Nitrogen Fertilizer Segment | Other products | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 5 | 5 | 8 | 10 |
Operating Segments | Nitrogen Fertilizer Segment | Crude oil sales | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 0 | 0 | 0 | 0 |
Operating Segments | Nitrogen Fertilizer Segment | Other revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Other revenue | 0 | 0 | 0 | 0 |
Other / Elimination | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenue | 39 | 53 | 51 | 121 |
Other / Elimination | Revenue from product sales | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 39 | 53 | 51 | 121 |
Other / Elimination | Gasoline | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 0 | 0 | 0 | 0 |
Other / Elimination | Distillates | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 26 | 35 | 36 | 83 |
Other / Elimination | Ammonia | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 0 | 0 | 0 | 0 |
Other / Elimination | UAN | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 0 | 0 | 0 | 0 |
Other / Elimination | Urea products | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 0 | 0 | 0 | 0 |
Other / Elimination | Freight revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 0 | 0 | 0 | 0 |
Other / Elimination | Other products | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 13 | 18 | 15 | 38 |
Other / Elimination | Crude oil sales | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 0 | 0 | 0 | 0 |
Other / Elimination | Other revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Other revenue | $ 0 | $ 0 | $ 0 | $ 0 |