Impairments (Tables) |
12 Months Ended |
|---|---|
Dec. 31, 2021 | |
| Impairments [Abstract] | |
| Before-tax impairment charges | During 2021, 2020 and 2019, we recognized the following Millions of Dollars 2021 2020 2019 Alaska $ 5 - - Lower 48 (8) 804 402 Canada 6 3 2 Europe, Middle East and North Africa (24) 6 1 Asia Pacific 695 - - $ 674 813 405 |