Property, Plant and Equipment (Textual) (Details) - SCE - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Capitalized software costs	$ 2,000
Capitalized software, accumulated amortization	700	$ 600
Capitalized software, amortization expense	344	$ 311	$ 218
Capitalized software, estimated amortization year 1	342
Capitalized software, estimated amortization year 2	309
Capitalized software, estimated amortization year 3	262
Capitalized software, estimated amortization year 4	190
Capitalized software, estimated amortization year 5	$ 110
Capitalized software costs | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Capitalized software costs | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives	7 years