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Compensation and Benefit Plans (Expected Future Benefit Payments) (Details) $ in Millions | Dec. 31, 2015 USD ($)
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Pension Plans |
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract] |
Year one | $ 311
Year two | 310
Year three | 314
Year four | 327
Year five | 327
Years six through ten | 1,590
Postretirement Benefits Other Than Pensions |
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract] |
Year one | 101
Year two | 106
Year three | 111
Year four | 115
Year five | 119
Years six through ten | 649
Southern California Edison | Pension Plans |
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract] |
Year one | 265
Year two | 270
Year three | 280
Year four | 286
Year five | 290
Years six through ten | 1,447
Southern California Edison | Postretirement Benefits Other Than Pensions |
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract] |
Year one | 101
Year two | 106
Year three | 110
Year four | 114
Year five | 118
Years six through ten | $ 646

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- Definition Amount of benefits from a defined benefit plan expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition Amount of benefits from a defined benefit plan expected to be paid in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition Amount of benefits from a defined benefit plan expected to be paid in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition Amount of benefits from a defined benefit plan expected to be paid in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition Amount of benefits from a defined benefit plan expected to be paid in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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