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Derivative Instruments (Notional Values) (Details) - SCE | 12 Months Ended
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Dec. 31, 2022 Bcfe GWh | Dec. 31, 2021 GWh Bcfe
Electricity options, swaps and forwards (GWh) |  |
Derivatives |  |
Notional volumes of derivative instruments | 1,022 | 1,869
Natural gas options, swaps and forwards (Bcf) |  |
Derivatives |  |
Notional volumes of derivative instruments | Bcfe | 42 | 58
Congestion revenue rights (GWh) |  |
Derivatives |  |
Notional volumes of derivative instruments | 44,028 | 33,216

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