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Commitments and Contingencies (Nuclear Insurance) (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2021 USD ($)
SCE |
Loss Contingencies [Line Items] |
Litigation settlement | $ 69
SCE | Insurance Claims |
Loss Contingencies [Line Items] |
Limit on retroactive premium adjustments assessment, per year | 30
SCE | Insurance Claims | Palo Verde (nuclear) |
Loss Contingencies [Line Items] |
Minimum federal requirement of nuclear property insurance | 1,100
Federal loss limit, bodily injury and property damage from nuclear incident | 13,700
Maximum per incident | 65
Maximum per incident annual | 10
Maximum per incident, prior events | 255
Maximum per incident, prior events, annually | 38
SCE | Insurance Claims | San Onofre |
Loss Contingencies [Line Items] |
Minimum federal requirement of nuclear property insurance | 50
Federal loss limit, bodily injury and property damage from nuclear incident | 560
SCE and other owners of San Onofre and Palo Verde |
Loss Contingencies [Line Items] |
Litigation settlement | $ 88

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