Impairments (Tables) |
6 Months Ended |
|---|---|
Jun. 30, 2020 | |
| Impairments [Abstract] | |
| Before-tax impairment charges [Table Text Block] | Note 8—Impairments During the three- charges within the following segments: Millions of Dollars Six Months Ended June 30 June 30 2020 2019 2020 2019 Lower 48 2 - 513 - Europe and North Africa (4) 1 6 2 $ (2) 1 519 2 |