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Revenue - Disaggregation of revenue (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Disaggregation of revenue |  |
Revenue from customers | $ 5,184 | $ 5,250
United States |  |
Disaggregation of revenue |  |
Revenue from customers | 4,604 | 4,439
International |  |
Disaggregation of revenue |  |
Revenue from customers | 846 | 1,010
Eliminations |  |
Disaggregation of revenue |  |
Revenue from customers | (266) | (199)
Oil and gas |  |
Disaggregation of revenue |  |
Revenue from customers | 3,735 | 4,101
Oil and gas | Oil |  |
Disaggregation of revenue |  |
Revenue from customers | 3,013 | 3,544
Oil and gas | NGL |  |
Disaggregation of revenue |  |
Revenue from customers | 436 | 278
Oil and gas | Gas |  |
Disaggregation of revenue |  |
Revenue from customers | 317 | 268
Oil and gas | Other |  |
Disaggregation of revenue |  |
Revenue from customers | (31) | 11
Oil and gas | United States |  |
Disaggregation of revenue |  |
Revenue from customers | 3,070 | 3,162
Oil and gas | United States | Oil |  |
Disaggregation of revenue |  |
Revenue from customers | 2,464 | 2,755
Oil and gas | United States | NGL |  |
Disaggregation of revenue |  |
Revenue from customers | 384 | 213
Oil and gas | United States | Gas |  |
Disaggregation of revenue |  |
Revenue from customers | 253 | 183
Oil and gas | United States | Other |  |
Disaggregation of revenue |  |
Revenue from customers | (31) | 11
Oil and gas | International |  |
Disaggregation of revenue |  |
Revenue from customers | 665 | 939
Oil and gas | International | Oil |  |
Disaggregation of revenue |  |
Revenue from customers | 549 | 789
Oil and gas | International | NGL |  |
Disaggregation of revenue |  |
Revenue from customers | 52 | 65
Oil and gas | International | Gas |  |
Disaggregation of revenue |  |
Revenue from customers | 64 | 85
Oil and gas | International | Other |  |
Disaggregation of revenue |  |
Revenue from customers | 0 | 0
Oil and gas | Eliminations |  |
Disaggregation of revenue |  |
Revenue from customers | 0 | 0
Oil and gas | Eliminations | Oil |  |
Disaggregation of revenue |  |
Revenue from customers | 0 | 0
Oil and gas | Eliminations | NGL |  |
Disaggregation of revenue |  |
Revenue from customers | 0 | 0
Oil and gas | Eliminations | Gas |  |
Disaggregation of revenue |  |
Revenue from customers | 0 | 0
Oil and gas | Eliminations | Other |  |
Disaggregation of revenue |  |
Revenue from customers | 0 | 0
Chemical |  |
Disaggregation of revenue |  |
Revenue from customers | 1,087 | 961
Chemical | United States |  |
Disaggregation of revenue |  |
Revenue from customers | 1,037 | 910
Chemical | International |  |
Disaggregation of revenue |  |
Revenue from customers | 50 | 51
Chemical | Eliminations |  |
Disaggregation of revenue |  |
Revenue from customers | 0 | 0
Midstream and marketing |  |
Disaggregation of revenue |  |
Revenue from customers | 628 | 387
Midstream and marketing | Gas processing |  |
Disaggregation of revenue |  |
Revenue from customers | 185 | 176
Midstream and marketing | Marketing |  |
Disaggregation of revenue |  |
Revenue from customers | 485 | 195
Midstream and marketing | Power and other |  |
Disaggregation of revenue |  |
Revenue from customers | (42) | 16
Midstream and marketing | United States |  |
Disaggregation of revenue |  |
Revenue from customers | 497 | 367
Midstream and marketing | United States | Gas processing |  |
Disaggregation of revenue |  |
Revenue from customers | 101 | 105
Midstream and marketing | United States | Marketing |  |
Disaggregation of revenue |  |
Revenue from customers | 438 | 246
Midstream and marketing | United States | Power and other |  |
Disaggregation of revenue |  |
Revenue from customers | (42) | 16
Midstream and marketing | International |  |
Disaggregation of revenue |  |
Revenue from customers | 131 | 20
Midstream and marketing | International | Gas processing |  |
Disaggregation of revenue |  |
Revenue from customers | 84 | 71
Midstream and marketing | International | Marketing |  |
Disaggregation of revenue |  |
Revenue from customers | 47 | (51)
Midstream and marketing | International | Power and other |  |
Disaggregation of revenue |  |
Revenue from customers | 0 | 0
Midstream and marketing | Eliminations |  |
Disaggregation of revenue |  |
Revenue from customers | 0 | 0
Midstream and marketing | Eliminations | Gas processing |  |
Disaggregation of revenue |  |
Revenue from customers | 0 | 0
Midstream and marketing | Eliminations | Marketing |  |
Disaggregation of revenue |  |
Revenue from customers | 0 | 0
Midstream and marketing | Eliminations | Power and other |  |
Disaggregation of revenue |  |
Revenue from customers | $ 0 | $ 0

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