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Revenue - Disaggregation of revenue (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Disaggregation of revenue |  |  |  |
Revenue from customers | $ 6,102 | $ 3,308 | $ 11,286 | $ 8,558
United States |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 5,284 | 2,619 | 9,888 | 7,058
International |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 1,049 | 851 | 1,895 | 1,861
Eliminations |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | (231) | (162) | (497) | (361)
Oil and gas |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 4,672 | 2,033 | 8,407 | 6,134
Oil and gas | Oil |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 3,711 | 1,621 | 6,724 | 5,165
Oil and gas | NGL |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 550 | 167 | 986 | 445
Oil and gas | Gas |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 387 | 224 | 704 | 492
Oil and gas | Other |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 24 | 21 | (7) | 32
Oil and gas | United States |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 3,834 | 1,451 | 6,904 | 4,613
Oil and gas | United States | Oil |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 3,028 | 1,166 | 5,492 | 3,921
Oil and gas | United States | NGL |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 472 | 127 | 856 | 340
Oil and gas | United States | Gas |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 311 | 138 | 564 | 321
Oil and gas | United States | Other |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 23 | 20 | (8) | 31
Oil and gas | International |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 838 | 582 | 1,503 | 1,521
Oil and gas | International | Oil |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 683 | 455 | 1,232 | 1,244
Oil and gas | International | NGL |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 78 | 40 | 130 | 105
Oil and gas | International | Gas |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 76 | 86 | 140 | 171
Oil and gas | International | Other |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 1 | 1 | 1 | 1
Oil and gas | Eliminations |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 0 | 0 | 0 | 0
Oil and gas | Eliminations | Oil |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 0 | 0 | 0 | 0
Oil and gas | Eliminations | NGL |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 0 | 0 | 0 | 0
Oil and gas | Eliminations | Gas |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 0 | 0 | 0 | 0
Oil and gas | Eliminations | Other |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 0 | 0 | 0 | 0
Chemical |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 1,187 | 839 | 2,274 | 1,800
Chemical | United States |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 1,128 | 793 | 2,165 | 1,703
Chemical | International |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 59 | 46 | 109 | 97
Chemical | Eliminations |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 0 | 0 | 0 | 0
Midstream and marketing |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 474 | 598 | 1,102 | 985
Midstream and marketing | United States |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 322 | 375 | 819 | 742
Midstream and marketing | International |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | 152 | 223 | 283 | 243
Midstream and marketing | Eliminations |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from customers | $ 0 | $ 0 | $ 0 | $ 0

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