Commitments and Contingencies - 2017 Creek Fire (Details) - 2017 Creek Fire - SCE $ in Millions	1 Months Ended
	Dec. 31, 2017 USD ($) a property structure plaintiff injury
Commitments and Contingencies
Acres burned | a	16,000
Structures destroyed	123
Structures damaged	81
Number of Injured | injury	3
Legal and other costs | $	$ 40
Number of plaintiffs | plaintiff	7
Number of plaintiff properties | property	1