Property, Plant and Equipment (Schedule) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Accumulated depreciation	$ (12,910)	$ (12,260)
Total utility property, plant and equipment	55,877	53,274
SCE
Property, Plant and Equipment [Line Items]
Distribution	34,573	32,754
Transmission	18,526	18,106
Generation	3,593	3,880
General plant and other	6,383	6,121
Accumulated depreciation	(12,910)	(12,260)
Total utility property, plant and equipment, Gross	50,165	48,601
Construction work in progress	5,590	4,551
Nuclear fuel, at amortized cost	122	122
Total utility property, plant and equipment	$ 55,877	$ 53,274