Accumulated Other Comprehensive Loss (Tables) |
9 Months Ended |
|---|---|
Sep. 30, 2021 | |
| Accumulated Other Comprehensive Loss [Abstract] | |
| Components of Accumulated Other Comprehensive Loss in the Equity Section of the Balance Sheet | Note 13—Accumulated Other Comprehensive Accumulated other comprehensive 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) 169 (1) (73) 95 September 30, 2021 $ (256) 1 (4,868) (5,123) |
| Items Reclassified out of Accumulated Other Comprehensive Income (Loss) | The following table summarizes reclassifications income (loss): Millions of Dollars Three Months Ended Nine Months Ended September 30 September 30 2021 2020 2021 2020 Defined benefit plans $ 29 30 83 46 The above amounts are included in the computation of net periodic benefit cost and are presented net of tax expense of $ 7 7 million for the three-month periods ended September 30, 2021 and September 30, 2020, respectively, and $ 22 11 nine-month periods ended September 30, 2021 and September 30, 2020, respectively |