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v3.23.3

Pension and Postretirement Benefit Plans - Components of Net Periodic Benefit Cost and Other Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Non-operating expense |  |  |  |
Total net periodic benefit cost (benefit) | $ (31) | $ (65) | $ (93) | $ (199)
Postretirement Benefits |  |  |  |
Operating expense |  |  |  |
Service cost | 6 | 10 | 18 | 31
Non-operating expense |  |  |  |
Interest cost | 21 | 13 | 66 | 39
Expected return on plan assets | (20) | (17) | (58) | (52)
Amortization of transition asset | 0 | 0 | 0 | 0
Amortization of prior service benefit | (7) | (8) | (23) | (24)
Amortization of net actuarial loss | 2 | 10 | 6 | 30
Settlements, curtailments, special termination benefits and other |  |  | 0 | 2
Total non-operating expense (benefit) | (4) | (2) | (9) | (5)
Total net periodic benefit cost (benefit) | 2 | 8 | 9 | 26
United States | Qualified and Non-qualified Pension Benefits |  |  |  |
Operating expense |  |  |  |
Service cost | 42 | 64 | 128 | 192
Non-operating expense |  |  |  |
Interest cost | 166 | 105 | 497 | 313
Expected return on plan assets | (243) | (241) | (731) | (723)
Amortization of transition asset | 0 | 0 | 0 | 0
Amortization of prior service benefit | (6) | (6) | (18) | (18)
Amortization of net actuarial loss | 73 | 106 | 220 | 318
Settlements, curtailments, special termination benefits and other |  |  | 0 | 0
Total non-operating expense (benefit) | (10) | (36) | (32) | (110)
Total net periodic benefit cost (benefit) | 32 | 28 | 96 | 82
International | Qualified and Non-qualified Pension Benefits |  |  |  |
Operating expense |  |  |  |
Service cost | 21 | 32 | 60 | 100
Non-operating expense |  |  |  |
Interest cost | 56 | 32 | 165 | 96
Expected return on plan assets | (76) | (69) | (226) | (211)
Amortization of transition asset | 1 | 0 | 2 | 1
Amortization of prior service benefit | 0 | 0 | 1 | 0
Amortization of net actuarial loss | 2 | 10 | 6 | 30
Settlements, curtailments, special termination benefits and other |  |  | 0 | 0
Total non-operating expense (benefit) | (17) | (27) | (52) | (84)
Total net periodic benefit cost (benefit) | $ 4 | $ 5 | $ 8 | $ 16

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