Impairments (Tables) |
9 Months Ended |
|---|---|
Sep. 30, 2021 | |
| Impairments [Abstract] | |
| Before-tax impairment charges | Note 6—Impairments During the three- impairment charges within the following Millions of Dollars Nine Months Ended September 30 September 30 2021 2020 2021 2020 Alaska $ - - 3 - Lower 48 (89) 1 (93) 514 Europe, Middle East and North Africa - 1 - 7 $ (89) 2 (90) 521 |