Variable Interest Entities - Narrative (Details) - SCE $ in Millions	3 Months Ended
	Mar. 31, 2025 USD ($) MW	Mar. 31, 2024 USD ($) MW
Variable Interest Entities
Debt carrying amount	$ 3,000
SCE Recovery Funding LLC
Variable Interest Entities
Debt carrying amount	$ 1,600
SCE Power Purchases Contracts
Variable Interest Entities
Power generating capacity of projects owned controlled | MW	5,300	4,642
Power Purchase Agreement
Variable Interest Entities
Amounts paid to VIEs	$ 172	$ 157