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Compensation and Benefit Plans (Expected Future Benefit Payments) (Details) (USD $) In Millions, unless otherwise specified | Dec. 31, 2012
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Pension Plans |
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract] |
Expected Future Benefit Payments - 2013 | $ 327
Expected Future Benefit Payments - 2014 | 322
Expected Future Benefit Payments - 2015 | 372
Expected Future Benefit Payments - 2016 | 349
Expected Future Benefit Payments - 2017 | 350
Expected Future Benefit Payments - 2018 - 2022 | 1,736
Postretirement Benefits Other Than Pensions |
Defined Benefit Plan, Estimated Future Benefit Payments, Gross [Abstract] |
Expected Future Benefit Payments - 2013 | 91
Expected Future Benefit Payments - 2014 | 97
Expected Future Benefit Payments - 2015 | 103
Expected Future Benefit Payments - 2016 | 109
Expected Future Benefit Payments - 2017 | 116
Expected Future Benefit Payments - 2018 - 2022 | 662
Southern California Edison | Pension Plans |
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract] |
Expected Future Benefit Payments - 2013 | 295
Expected Future Benefit Payments - 2014 | 295
Expected Future Benefit Payments - 2015 | 303
Expected Future Benefit Payments - 2016 | 310
Expected Future Benefit Payments - 2017 | 311
Expected Future Benefit Payments - 2018 - 2022 | 1,568
Southern California Edison | Postretirement Benefits Other Than Pensions |
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract] |
Expected Future Benefit Payments - 2013 | 90
Expected Future Benefit Payments - 2014 | 97
Expected Future Benefit Payments - 2015 | 103
Expected Future Benefit Payments - 2016 | 109
Expected Future Benefit Payments - 2017 | 116
Expected Future Benefit Payments - 2018 - 2022 | $ 659

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- Definition The gross amount of benefits, which do not include prescription drug subsidy receipts, expected to be paid in five fiscal years thereafter. + References No definition available. + Details
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- Definition The gross amount of benefits, which do not include prescription drug subsidy receipts, expected to be paid in year five. + References No definition available. + Details
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- Definition The gross amount of benefits, which do not include prescription drug subsidy receipts, expected to be paid in year four. + References No definition available. + Details
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- Definition The gross amount of benefits, which do not include prescription drug subsidy receipts, expected to be paid in year one. + References No definition available. + Details
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- Definition The gross amount of benefits, which do not include prescription drug subsidy receipts, expected to be paid in year three. + References No definition available. + Details
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- Definition The gross amount of benefits, which do not include prescription drug subsidy receipts, expected to be paid in year two. + References No definition available. + Details
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- Definition Amount of benefits expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year from a defined benefit plan. + 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=21915506&loc=d3e1928-114920 + Details
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- Definition Amount of benefits expected to be paid in the next fiscal year following the latest fiscal year from a defined benefit plan. + 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=21915506&loc=d3e1928-114920 + Details
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- Definition Amount of benefits expected to be paid in the fifth fiscal year following the latest fiscal year from a defined benefit plan. + 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=21915506&loc=d3e1928-114920 + Details
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- Definition Amount of benefits expected to be paid in the fourth fiscal year following the latest fiscal year from a defined benefit plan. + 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=21915506&loc=d3e1928-114920 + Details
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- Definition Amount of benefits expected to be paid in the third fiscal year following the latest fiscal year from a defined benefit plan. + 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=21915506&loc=d3e1928-114920 + Details
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- Definition Amount of benefits expected to be paid in the second fiscal year following the latest fiscal year from a defined benefit plan. + 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=21915506&loc=d3e1928-114920 + Details
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