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Compensation and Benefit Plans (Assumptions) (Details) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Postretirement Benefits Other Than Pensions |  |  |
Pension and Other Postretirement Benefits |  |  |
Discount rate | 2.67% | 3.32% | 4.35%
Expected long-term return on plan assets | 4.00% | 4.90% | 5.30%
Assumed health care cost trend rates: |  |  |
Current year | 6.50% | 6.50% | 6.75%
Ultimate rate | 5.00% | 5.00% | 5.00%
SCE | Postretirement Benefits Other Than Pensions |  |  |
Assumed health care cost trend rates: |  |  |
Ultimate rate | 5.00% | 5.00% |
SCE | Pension Plans |  |  |
Pension and Other Postretirement Benefits |  |  |
Discount rate | 2.38% | 3.11% | 4.19%
Rate of compensation increase | 4.00% | 4.10% | 4.10%
Expected long-term return on plan assets | 5.50% | 6.00% | 6.50%
Assumed health care cost trend rates: |  |  |
Starting rate | 3.03% | 3.61% | 4.46%
Ultimate rate | 4.50% | 5.00% | 5.75%

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- Definition Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Starting Rate + References No definition available. + Details
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- Definition The assumed health care cost trend rate for the current fiscal year used to measure the expected cost of benefits covered by the plan (gross eligible charges). This is based on the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan population, by age and dependency status. + References No definition available. + Details
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- References No definition available. + Details
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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(3) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2919-114920 + Details
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- Definition Weighted average rate of compensation increase used to determine net periodic benefit cost of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(2) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Ultimate trend rate for health care cost for defined benefit postretirement plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (l) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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