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Compensation and Benefit Plans | 3 Months Ended
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Mar. 31, 2020
Retirement Benefits [Abstract] |
Compensation and Benefit Plans | Compensation and Benefit Plans Pension Plans Net periodic pension expense components are:
|  | Three months ended March 31,
(in millions) |  | 2020 |  | 2019
Edison International: |  |  |  |
Service cost |  | $ | 31 |  |  | $ | 32 |
Non-service cost (benefit) |  |  |  |
Interest cost |  | 31 |  |  | 39 |
Expected return on plan assets |  | (54 | ) |  | (52 | )
Amortization of net loss 1 |  | 3 |  |  | 2 |
Regulatory adjustment |  | 2 |  |  | (4 | )
Total non-service benefit 2 |  | (18 | ) |  | (15 | )
Total expense recognized |  | $ | 13 |  |  | $ | 17 |
SCE: |  |  |  |
Service cost |  | $ | 30 |  |  | $ | 31 |
Non-service cost (benefit) |  |  |  |
Interest cost |  | 28 |  |  | 35 |
Expected return on plan assets |  | (51 | ) |  | (49 | )
Amortization of net loss 1 |  | 2 |  |  | 1 |
Regulatory adjustment |  | 2 |  |  | (4 | )
Total non-service benefit 2 |  | (19 | ) |  | (17 | )
Total expense recognized |  | $ | 11 |  |  | $ | 14 |
1 | Includes the amount of net loss reclassified from other comprehensive loss. The amount reclassified for Edison International and SCE was $3 million and $2 million respectively, for the three months ended March 31, 2020. The amount reclassified for Edison International and SCE was $2 million and $1 million, respectively, for the three months ended March 31, 2019.
2 | Included in "Other income" on Edison International's and SCE's consolidated statement of income.
Postretirement Benefits Other Than Pensions ("PBOP") Net periodic PBOP expense components for Edison International and SCE are:
|  | Three months ended March 31,
(in millions) |  | 2020 |  | 2019
Service cost |  | $ | 9 |  |  | $ | 8 |
Non-service cost (benefit) |  |  |  |
Interest cost |  | 17 |  |  | 21 |
Expected return on plan assets |  | (30 | ) |  | (28 | )
Amortization of net gain |  | (4 | ) |  | (1 | )
Regulatory adjustment |  | 8 |  |  | 6 |
Total non-service benefit 1 |  | (9 | ) |  | (2 | )
Total expense |  | $ | — |  |  | $ | 6 |
1 Included in "Other income" on Edison International's and SCE's consolidated statement of income.

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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