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Compensation and Benefit Plans (Tables) | 6 Months Ended
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Jun. 30, 2022
Pension Plans |
Pension and Other Postretirement Benefits |
Expense Components for Plans | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​ | Six months ended
​ | ​ | June 30, | ​ | June 30,
(in millions) |  | 2022 |  | 2021 |  | 2022 |  | 2021
Edison International: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Service cost | ​ | $ | 30 | ​ | $ | 34 | ​ | $ | 60 | ​ | $ | 68
Non-service cost (benefit) | ​ |  | ​ | ​ |  | ​ | ​ |  |  | ​ |  |
Interest cost | ​ |  | 27 | ​ |  | 26 | ​ |  | 54 | ​ |  | 52
Expected return on plan assets | ​ |  | (57) | ​ |  | (56) | ​ |  | (114) | ​ |  | (112)
Settlement costs1 | ​ |  | 3 | ​ |  | — | ​ |  | 3 | ​ |  | —
Amortization of net loss2 | ​ |  | 1 | ​ |  | 3 | ​ |  | 2 | ​ |  | 6
Regulatory adjustment | ​ |  | 2 | ​ |  | 4 | ​ |  | 4 | ​ |  | 8
Total non-service benefit3 | ​ | $ | (24) | ​ | $ | (23) | ​ | $ | (51) | ​ | $ | (46)
Total expense recognized | ​ | $ | 6 | ​ | $ | 11 | ​ | $ | 9 | ​ | $ | 22
SCE: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Service cost | ​ | $ | 29 | ​ | $ | 33 | ​ | $ | 58 | ​ | $ | 66
Non-service cost (benefit) | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Interest cost | ​ |  | 25 | ​ |  | 24 | ​ |  | 50 | ​ |  | 48
Expected return on plan assets | ​ |  | (54) | ​ |  | (53) | ​ |  | (108) | ​ |  | (106)
Settlement costs1 | ​ |  | 3 | ​ |  | — | ​ |  | 3 | ​ |  | —
Amortization of net loss2 | ​ |  | 1 | ​ |  | 2 | ​ |  | 2 | ​ |  | 4
Regulatory adjustment | ​ |  | 2 | ​ |  | 4 | ​ |  | 4 | ​ |  | 8
Total non-service benefit3 | ​ | $ | (23) | ​ | $ | (23) | ​ | $ | (49) | ​ | $ | (46)
Total expense recognized | ​ | $ | 6 | ​ | $ | 10 | ​ | $ | 9 | ​ | $ | 20
1 | Under GAAP, a settlement is recorded when lump-sum payments exceed estimated annual service and interest costs. Lump sum payments made in 2022 to SCE executives retiring in 2021 from the Executive Retirement Plan exceeded the estimated service and interest costs, resulting in a partial settlement of that plan. A settlement loss of approximately $3 million ($2 million after-tax) was recorded at SCE in the second quarter of 2022.
2 | Includes the amount of net loss reclassified from other comprehensive loss. The amount reclassified for Edison International and SCE was $2 million and $1 million, respectively, for the three months ended June 30, 2022 and $4 million and $2 million, respectively, for the six months ended June 30, 2022. The amount reclassified for Edison International and SCE was $3 million and $2 million, respectively, for the three months ended June 30, 2021 and $6 million and $4 million, respectively, for the six months ended June 30, 2021.
3 | Included in "Other income" on Edison International's and SCE's consolidated statements of income.
Postretirement Benefits Other Than Pensions |
Pension and Other Postretirement Benefits |
Expense Components for Plans |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​ | Six months ended
​ | ​ | June 30, | ​ | June 30,
(in millions) |  | 2022 |  | 2021 |  | 2022 |  | 2021
Service cost | ​ | $ | 8 | ​ | $ | 10 | ​ | $ | 16 | ​ | $ | 20
Non-service cost (benefit) | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Interest cost | ​ |  | 14 | ​ |  | 14 | ​ |  | 28 | ​ |  | 28
Expected return on plan assets | ​ |  | (24) | ​ |  | (27) | ​ |  | (48) | ​ |  | (54)
Amortization of net gain | ​ |  | (12) | ​ |  | (8) | ​ |  | (24) | ​ |  | (16)
Regulatory adjustment | ​ |  | 14 | ​ |  | 11 | ​ |  | 28 | ​ |  | 22
Total non-service benefit1 | ​ | $ | (8) | ​ | $ | (10) | ​ | $ | (16) | ​ | $ | (20)
Total expense | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | —
1 | Included in "Other income" on Edison International's and SCE's consolidated statements of income.

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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