Revenue - Revenue Disaggregated by Major Product (Details) - USD ($) $ in Millions | 3 Months Ended |
Mar. 31, 2020 | Mar. 31, 2019 |
Disaggregation of Revenue [Line Items] | | |
Net sales | $ 1,130 | $ 1,486 |
Revenue from product sales | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 1,093 | 1,462 |
Gasoline | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 516 | 673 |
Distillates | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 476 | 651 |
Ammonia | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 14 | 13 |
UAN | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 47 | 64 |
Other urea products | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 4 | 5 |
Freight revenue | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 13 | 14 |
Other | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 23 | 42 |
Crude oil sales | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 37 | 23 |
Other revenue | | |
Disaggregation of Revenue [Line Items] | | |
Other revenue | | 1 |
Operating Segments | Petroleum | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 1,057 | 1,397 |
Operating Segments | Petroleum | Revenue from product sales | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 1,020 | 1,373 |
Operating Segments | Petroleum | Gasoline | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 516 | 673 |
Operating Segments | Petroleum | Distillates | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 476 | 651 |
Operating Segments | Petroleum | Ammonia | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 0 | 0 |
Operating Segments | Petroleum | UAN | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 0 | 0 |
Operating Segments | Petroleum | Other urea products | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 0 | 0 |
Operating Segments | Petroleum | Freight revenue | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 5 | 6 |
Operating Segments | Petroleum | Other | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 23 | 43 |
Operating Segments | Petroleum | Crude oil sales | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 37 | 23 |
Operating Segments | Petroleum | Other revenue | | |
Disaggregation of Revenue [Line Items] | | |
Other revenue | | 1 |
Operating Segments | Nitrogen Fertilizer | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 75 | 92 |
Operating Segments | Nitrogen Fertilizer | Revenue from product sales | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 75 | 92 |
Operating Segments | Nitrogen Fertilizer | Gasoline | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 0 | 0 |
Operating Segments | Nitrogen Fertilizer | Distillates | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 0 | 0 |
Operating Segments | Nitrogen Fertilizer | Ammonia | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 14 | 13 |
Operating Segments | Nitrogen Fertilizer | UAN | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 47 | 64 |
Operating Segments | Nitrogen Fertilizer | Other urea products | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 4 | 5 |
Operating Segments | Nitrogen Fertilizer | Freight revenue | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 8 | 8 |
Operating Segments | Nitrogen Fertilizer | Other | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 2 | 2 |
Operating Segments | Nitrogen Fertilizer | Crude oil sales | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 0 | 0 |
Operating Segments | Nitrogen Fertilizer | Other revenue | | |
Disaggregation of Revenue [Line Items] | | |
Other revenue | | 0 |
Other / Eliminations | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | (2) | (3) |
Other / Eliminations | Revenue from product sales | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | (2) | (3) |
Other / Eliminations | Gasoline | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 0 | 0 |
Other / Eliminations | Distillates | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 0 | 0 |
Other / Eliminations | Ammonia | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 0 | 0 |
Other / Eliminations | UAN | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 0 | 0 |
Other / Eliminations | Other urea products | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 0 | 0 |
Other / Eliminations | Freight revenue | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | 0 | 0 |
Other / Eliminations | Other | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | (2) | (3) |
Other / Eliminations | Crude oil sales | | |
Disaggregation of Revenue [Line Items] | | |
Revenue from product sales | $ 0 | 0 |
Other / Eliminations | Other revenue | | |
Disaggregation of Revenue [Line Items] | | |
Other revenue | | $ 0 |