Debt and Credit Agreements - Schedule of First and Refunding Mortgage Bonds (Details) - SCE $ in Millions	Jun. 30, 2025 USD ($)
Debt
Amount (in millions)	$ 3,000
5.45% first and refunding mortgage bonds due in 2035
Debt
Rate	5.45%
Amount (in millions)	$ 850
5.90% first and refunding mortgage bonds due in 2055
Debt
Rate	5.90%
Amount (in millions)	$ 650
5.25% first and refunding mortgage bonds due 2030
Debt
Rate	5.25%
Amount (in millions)	$ 850
6.20% first and refunding mortgage bonds due 2055
Debt
Rate	6.20%
Amount (in millions)	$ 650

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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