Commitments and Contingencies (Nuclear) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)
Palo Verde (nuclear)
Commitments and Contingencies
Federal loss limit, bodily injury and property damage from nuclear incident	$ 16,300
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	79
Maximum per incident annual	12
SCE | San Onofre
Commitments and Contingencies
Minimum federal requirement of nuclear property insurance	$ 50