Employee Benefit Plans (Tables) |
6 Months Ended |
|---|---|
Jun. 30, 2021 | |
| Employee Benefit Plans [Abstract] | |
| Pension and Postretirement Plans | Pension and Postretirement Plans Millions of Dollars Pension Benefits Other Benefits 2021 2020 2021 2020 U.S. Int'l. U.S. Int'l. Components of Net Periodic Benefit Cost Three Months Ended June 30 Service cost $ 18 16 21 13 1 - Interest cost 15 20 17 20 1 1 Expected return on plan assets (20) (30) (21) (34) - - Amortization of prior service credit - - - - (10) (8) Recognized net actuarial loss 12 8 13 5 1 - Settlements 42 - - - - - Net periodic benefit cost $ 67 14 30 4 (7) (7) Six Months Ended June 30 Service cost $ 39 31 42 27 1 1 Interest cost 28 40 34 42 2 3 Expected return on plan assets (44) (60) (42) (71) - - Amortization of prior service credit - - - - (19) (16) Recognized net actuarial loss 27 16 25 11 1 - Settlements 44 - 1 (1) - - Curtailments 12 - - - - - Special Termination Benefits 9 - - - - - Net periodic benefit cost $ 115 27 60 8 (15) (12) |
| Discount Rates | The relevant discount rates are summarized in June 30 March 31 December 31 Discount rate 2021 2021 2020 U.S. qualified pension plan % 2.65 3.00 2.40 U.S. nonqualified pension plan 2.15 2.40 1.85 U.S. postretirement benefit plans * 2.80 2.20 * Not remeasured at June 30, 2021. |
| Severance Accrual | Millions of Dollars Balance at December 31, 2020 $ 24 Accruals 102 Benefit payments (91) Balance at June 30, 2021 $ 35 |