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Commitments and Contingencies (Nuclear) (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2021 USD ($)
Palo Verde (nuclear) |
Loss Contingencies [Line Items] |
Federal loss limit, bodily injury and property damage from nuclear incident | $ 13,500
San Onofre |
Loss Contingencies [Line Items] |
Federal loss limit, bodily injury and property damage from nuclear incident | 560
SCE |
Loss Contingencies [Line Items] |
Limit on retroactive premium adjustments assessment, per year | 30
SCE | Palo Verde (nuclear) |
Loss Contingencies [Line Items] |
Minimum federal requirement of nuclear property insurance | 1,100
Maximum per incident | 65
Maximum per incident annual | 10
Maximum per incident, prior events | 255
Maximum per incident, prior events, annually | 38
SCE | San Onofre |
Loss Contingencies [Line Items] |
Minimum federal requirement of nuclear property insurance | 50
SCE and other owners of San Onofre and Palo Verde |
Loss Contingencies [Line Items] |
Maximum private primary insurance | $ 450

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