Property, Plant and Equipment (Schedule) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Accumulated depreciation	$ (12,260)	$ (11,407)
Total utility property, plant and equipment	53,274	50,497
SCE
Property, Plant and Equipment [Line Items]
Distribution	32,754	30,821
Transmission	18,106	17,016
Generation	3,880	3,769
General plant and other	6,121	6,108
Accumulated depreciation	(12,260)	(11,407)
Total utility property, plant and equipment, Gross	48,601	46,307
Construction work in progress	4,551	4,067
Nuclear fuel, at amortized cost	122	123
Total utility property, plant and equipment	$ 53,274	$ 50,497