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v3.21.2

Compensation and Benefit Plans (Expenses) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Pension Plans |  |  |  |
Pension and Other Postretirement Benefits |  |  |  |
Service cost | $ 34 | $ 31 | $ 102 | $ 93
Non-service cost (benefit) |  |  |  |
Interest cost | 26 | 31 | 78 | 92
Expected return on plan assets | (56) | (55) | (168) | (163)
Amortization of prior service cost |  |  |  | 1
Amortization of net (gain) loss | 3 | 3 | 9 | 9
Regulatory adjustment | 4 | 2 | 12 | 6
Total non-service benefit | (23) | (19) | (69) | (55)
Total expense recognized | 11 | 12 | 33 | 38
Postretirement Benefits Other Than Pensions |  |  |  |
Pension and Other Postretirement Benefits |  |  |  |
Service cost | 10 | 10 | 30 | 28
Non-service cost (benefit) |  |  |  |
Interest cost | 14 | 17 | 42 | 51
Expected return on plan assets | (27) | (29) | (81) | (89)
Amortization of prior service cost |  | (1) |  | (1)
Amortization of net (gain) loss | (8) | (5) | (24) | (13)
Regulatory adjustment | 11 | 8 | 33 | 24
Total non-service benefit | (10) | (10) | (30) | (28)
SCE |  |  |  |
Non-service cost (benefit) |  |  |  |
Total non-service benefit | (33) | (28) | (99) | (83)
SCE | Pension Plans |  |  |  |
Pension and Other Postretirement Benefits |  |  |  |
Service cost | 33 | 31 | 99 | 91
Non-service cost (benefit) |  |  |  |
Interest cost | 24 | 29 | 72 | 85
Expected return on plan assets | (53) | (51) | (159) | (153)
Amortization of prior service cost |  |  |  | 1
Amortization of net (gain) loss | 2 | 2 | 6 | 6
Regulatory adjustment | 4 | 2 | 12 | 6
Total non-service benefit | (23) | (18) | (69) | (55)
Total expense recognized | $ 10 | $ 13 | $ 30 | $ 36

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