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v3.20.4

Compensation and Benefit Plans (Expense Components) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Pension Plans |  |  |
Pension and Other Postretirement Benefits [Line Items] |  |  |
Service cost | $ 121 | $ 114 |
Non-service cost |  |  |
Interest cost | 124 | 155 |
PBOP |  |  |
Pension and Other Postretirement Benefits [Line Items] |  |  |
Service cost | 38 | 30 | $ 37
Non-service cost |  |  |
Interest cost | 63 | 77 | 80
Expected return on plan assets | (119) | (111) | (121)
Amortization of prior service cost | (1) | (1) | (1)
Amortization of net (gain) loss | (29) | (17) | 0
Regulatory adjustment (deferred) | (49) | (29) | (24)
Total non-service benefit | (37) | (23) | (18)
Total expense | 1 | 7 | 19
SCE |  |  |
Non-service cost |  |  |
Total non-service benefit | (102) | (70) | (81)
SCE | Pension Plans |  |  |
Pension and Other Postretirement Benefits [Line Items] |  |  |
Service cost | 117 | 110 |
Non-service cost |  |  |
Interest cost | 110 | 138 |
SCE | PBOP |  |  |
Pension and Other Postretirement Benefits [Line Items] |  |  |
Service cost | 37 | 30 | 37
Non-service cost |  |  |
Interest cost | 63 | 77 | 80
Expected return on plan assets | (119) | (111) | (122)
Amortization of prior service cost | (1) | (1) | (1)
Amortization of net (gain) loss | (29) | (17) | 0
Regulatory adjustment (deferred) | (49) | (29) | (24)
Total non-service benefit | (37) | (23) | (19)
Total expense | 0 | 7 | 18
Continuing Operations | Pension Plans |  |  |
Pension and Other Postretirement Benefits [Line Items] |  |  |
Service cost | 121 | 114 | 126
Non-service cost |  |  |
Interest cost | 124 | 155 | 140
Expected return on plan assets | (215) | (205) | (228)
Amortization of prior service cost | 2 | 2 | 3
Amortization of net (gain) loss | 10 | 7 | 9
Regulatory adjustment (deferred) | 16 | (3) | 15
Total non-service benefit | (63) | (44) | (61)
Total expense recognized | 58 | 70 | 65
Continuing Operations | SCE | Pension Plans |  |  |
Pension and Other Postretirement Benefits [Line Items] |  |  |
Service cost | 119 | 111 | 123
Non-service cost |  |  |
Interest cost | 114 | 143 | 128
Expected return on plan assets | (203) | (194) | (214)
Amortization of prior service cost | 1 | 2 | 3
Amortization of net (gain) loss | 7 | 5 | 6
Regulatory adjustment (deferred) | 16 | (3) | 15
Total non-service benefit | (65) | (47) | (62)
Total expense recognized | $ 54 | $ 64 | $ 61

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