Income Taxes (Interest and Penalties) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Line Items]
Net after-tax interest and penalties tax (benefit) expense		$ (41)	$ 4
SCE
Income Tax Disclosure [Line Items]
Accrued interest and penalties	$ 23	20
Net after-tax interest and penalties tax (benefit) expense	$ 2	$ (2)	$ 6