Impairments - Schedule of Impairments (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2021 |
Jun. 30, 2020 |
Jun. 30, 2021 |
Jun. 30, 2020 |
|
Goodwill [Line Items] | ||||
Impairments | $ 0 | $ 0 | $ 198 | $ 3,006 |
Midstream | ||||
Goodwill [Line Items] | ||||
Impairments | 0 | |||
Midstream | Operating Segments | ||||
Goodwill [Line Items] | ||||
Impairments | 0 | 0 | 198 | 1,161 |
Refining | Operating Segments | ||||
Goodwill [Line Items] | ||||
Impairments | $ 0 | $ 0 | $ 0 | $ 1,845 |