Debt and Credit Agreements (Recovery and Term) (Details) - USD ($) $ in Millions	1 Months Ended
	Apr. 30, 2022	Feb. 28, 2022	Jan. 31, 2022	Feb. 28, 2021
SCE | 2.75% first and refunding mortgage bonds due 2032
Debt Instrument [Line Items]
Debt, face amount			$ 500.0
Interest rate on debt (as a percent)			2.75%
SCE | 3.45% first and refunding mortgage bonds due 2052
Debt Instrument [Line Items]
Debt, face amount			$ 700.0
Interest rate on debt (as a percent)			3.45%
SCE | Series 2022-A senior secured recovery bonds
Debt Instrument [Line Items]
Debt, face amount		$ 533.0
SCE | Recovery Bonds, 1.98% due 2030
Debt Instrument [Line Items]
Debt, face amount		$ 100.0
Interest rate on debt (as a percent)		1.98%
SCE | Recovery Bonds, 2.94% due 2044
Debt Instrument [Line Items]
Debt, face amount		$ 305.0
Interest rate on debt (as a percent)		2.94%
SCE | Recovery Bonds, 3.24% due 2048
Debt Instrument [Line Items]
Debt, face amount		$ 128.0
Interest rate on debt (as a percent)		3.24%
SCE | Series 2021-A senior secured recovery bonds
Debt Instrument [Line Items]
Debt, face amount				$ 338.0
Edison International Parent and Other | 0.70% term loan due April 2023
Debt Instrument [Line Items]
Debt, face amount	$ 600.0
Edison International Parent and Other | 0.70% term loan due April 2023 | SOFR
Debt Instrument [Line Items]
Basis points	0.70%