Accumulated Other Comprehensive Loss (Tables) |
3 Months Ended |
|---|---|
Mar. 31, 2021 | |
| Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] | |
| Components of accumulated other comprehensive loss in the equity section of the balance sheet | Note 12—Accumulated Other Comprehensive Loss Accumulated other comprehensive loss in the Millions of Dollars Defined Benefit Plans Net Unrealized Gain (Loss) on Securities Foreign Currency Translation Accumulated Other Comprehensive Loss December 31, 2020 $ (425) 2 (4,795) (5,218) Other comprehensive income (loss) 70 (1) 69 138 March 31, 2021 $ (355) 1 (4,726) (5,080) |
| Items reclassified out of accumulated other comprehensive loss | The following table summarizes reclassifications income (loss): Millions of Dollars Three Months Ended March 31 2021 2020 Defined benefit plans $ 12 8 The above amounts are included in the computation of net periodic benefit 3 $ 2 information. |