Commitments and Contingencies (Nuclear) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2023 USD ($)
Palo Verde (nuclear)
Commitments and Contingencies
Federal loss limit, bodily injury and property damage from nuclear incident	$ 13,700
San Onofre
Commitments and Contingencies
Federal loss limit, bodily injury and property damage from nuclear incident	560
SCE
Commitments and Contingencies
Limit on retroactive premium adjustments assessment, per year	24
Maximum per incident, prior events	255
Maximum per incident, prior events, annually	38
SCE | Palo Verde (nuclear)
Commitments and Contingencies
Minimum federal requirement of nuclear property insurance	1,100
Maximum per incident	65
Maximum per incident annual	10
SCE | San Onofre
Commitments and Contingencies
Minimum federal requirement of nuclear property insurance	$ 50