Revenue - Revenue Disaggregated by Major Product (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 |
Disaggregation of Revenue [Line Items] | | | | |
Total revenue | $ 2,236 | $ 3,144 | $ 4,523 | $ 5,517 |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-02-01 | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Remaining performance obligation, expected timing of satisfaction, period | 7 years 3 months | | 7 years 3 months | |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-07-01 | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Remaining performance obligation, expected timing of satisfaction, period | 3 years | | 3 years | |
Revenue from product sales | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | $ 2,211 | 3,132 | $ 4,470 | 5,499 |
Gasoline | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 1,092 | 1,421 | 2,102 | 2,524 |
Distillates | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 865 | 1,377 | 1,832 | 2,339 |
Ammonia | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 56 | 61 | 94 | 103 |
UAN | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 104 | 159 | 268 | 319 |
Other urea products | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 7 | 11 | 15 | 20 |
Freight revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 16 | 14 | 30 | 27 |
Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 71 | 89 | 129 | 167 |
Crude oil sales | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 24 | 12 | 52 | 17 |
Other revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Other revenue | $ 1 | 0 | $ 1 | 1 |
Nitrogen Fertilizer Segment | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-07-01 | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Remaining performance obligation, expected timing of satisfaction, period | 6 months | | 6 months | |
Nitrogen Fertilizer Segment | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Remaining performance obligation, expected timing of satisfaction, period | 1 year | | 1 year | |
Operating Segments | Petroleum | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenue | $ 2,000 | 2,868 | $ 3,993 | 5,022 |
Operating Segments | Petroleum | Revenue from product sales | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 1,975 | 2,856 | 3,940 | 5,004 |
Operating Segments | Petroleum | Gasoline | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 1,092 | 1,421 | 2,102 | 2,524 |
Operating Segments | Petroleum | Distillates | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 830 | 1,350 | 1,749 | 2,312 |
Operating Segments | Petroleum | Ammonia | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 0 | 0 | 0 | 0 |
Operating Segments | Petroleum | UAN | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 0 | 0 | 0 | 0 |
Operating Segments | Petroleum | Other urea products | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 0 | 0 | 0 | 0 |
Operating Segments | Petroleum | Freight revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 5 | 4 | 8 | 8 |
Operating Segments | Petroleum | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 48 | 81 | 81 | 160 |
Operating Segments | Petroleum | Crude oil sales | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 24 | 12 | 52 | 17 |
Operating Segments | Petroleum | Other revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Other revenue | 1 | 0 | 1 | 1 |
Operating Segments | Nitrogen Fertilizer Segment | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenue | 183 | 244 | 409 | 467 |
Operating Segments | Nitrogen Fertilizer Segment | Revenue from product sales | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 183 | 244 | 409 | 467 |
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 | 56 | 61 | 94 | 103 |
Operating Segments | Nitrogen Fertilizer Segment | UAN | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 104 | 159 | 268 | 319 |
Operating Segments | Nitrogen Fertilizer Segment | Other urea products | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 7 | 11 | 15 | 20 |
Operating Segments | Nitrogen Fertilizer Segment | Freight revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 11 | 10 | 22 | 19 |
Operating Segments | Nitrogen Fertilizer Segment | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 5 | 3 | 10 | 6 |
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 | 53 | 32 | 121 | 28 |
Other / Elimination | Revenue from product sales | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 53 | 32 | 121 | 28 |
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 | 35 | 27 | 83 | 27 |
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 | Other 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 | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from product sales | 18 | 5 | 38 | 1 |
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 |