Impairments (Schedule of Goodwill) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended |
---|---|---|
Mar. 31, 2020 |
Jun. 30, 2020 |
|
Goodwill [Line Items] | ||
Goodwill, beginning balance | $ 20,040 | $ 20,040 |
Impairments | (7,330) | (7,330) |
Transfers | 0 | |
Goodwill, ending balance | 12,710 | |
Refining & Marketing | ||
Goodwill [Line Items] | ||
Goodwill, beginning balance | 5,572 | 5,572 |
Impairments | (5,516) | |
Transfers | (56) | |
Goodwill, ending balance | 0 | |
Retail | ||
Goodwill [Line Items] | ||
Goodwill, beginning balance | 4,951 | 4,951 |
Impairments | 0 | |
Transfers | 0 | |
Goodwill, ending balance | 4,951 | |
Midstream | ||
Goodwill [Line Items] | ||
Goodwill, beginning balance | $ 9,517 | 9,517 |
Impairments | (1,814) | |
Transfers | 56 | |
Goodwill, ending balance | $ 7,759 |