Commitments and Contingencies (Wildfires and Mudslides) (Details) - SCE	1 Months Ended
	Aug. 31, 2023 USD ($)	Sep. 30, 2022 USD ($) a item individual	May 31, 2022 USD ($) a individual item	Sep. 30, 2020 USD ($) a item individual	Dec. 31, 2017 USD ($) a	Oct. 31, 2019 a item individual	Nov. 30, 2018 a item individual	Jan. 31, 2018 item individual	Dec. 04, 2017 a item individual
Thomas and Koenigstein Fires and Montecito Mudslides
Commitments and Contingencies
Fire-suppression costs | $	$ 400,000,000
December 2017 Wildfires
Commitments and Contingencies
Acres burned | a									280,000
Structures destroyed									1,343
Fatalities | individual									2
November 2018 Wildfires
Commitments and Contingencies
Acres burned | a							100,000
Structures destroyed							1,643
Structures damaged							364
Fatalities | individual							3
Additional fatalities | individual							4
Montecito Mudslides
Commitments and Contingencies
Structures destroyed								135
Structures damaged								324
Fatalities | individual								21
Additional fatalities | individual								2
2017 Creek Fire
Commitments and Contingencies
Acres burned | a					16,000
Structures destroyed | $					123
Structures damaged | $					81
Number of Injured | $					3
Fire-suppression costs | $					$ 40,000,000
Saddle Ridge Fire
Commitments and Contingencies
Acres burned | a						9,000
Structures destroyed						19
Structures damaged						88
Fatalities | individual						1
Number of Injured | individual						8
Bobcat fire
Commitments and Contingencies
Acres burned | a				116,000
Number of Injured | individual				6
Estimated fire suppression costs | $				$ 80,000,000
Bobcat fire | Home/Residential
Commitments and Contingencies
Structures destroyed				87
Structures damaged				28
Bobcat fire | Commercial property
Commitments and Contingencies
Structures destroyed				1
Bobcat fire | Minor structures
Commitments and Contingencies
Structures destroyed				83
Structures damaged				19
Coastal Fire
Commitments and Contingencies
Acres burned | a			200
Structures destroyed			20
Structures damaged			11
Number of Injured | individual			2
Estimated fire suppression costs | $			$ 3,000,000
Fairview Fire
Commitments and Contingencies
Acres burned | a		28,000
Structures destroyed		22
Fatalities | individual		2
Number of civilian injury | individual		1
Number of Injured | individual		2
Estimated fire suppression costs | $		$ 39,000,000
Fairview Fire | Home/Residential
Commitments and Contingencies
Structures damaged		5
Fairview Fire | Minor structures
Commitments and Contingencies
Structures damaged		17