Commitments and Contingencies (Wildfire loss accrual) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Loss contingency accrual roll forward
Wildfire-related claims, current		$ 71		$ 121
Wildfire-related claims, non-current		1,309		1,687
2017/2018 Wildfire/Mudslide Events
Loss contingency accrual roll forward
Beginning balance		1,119
Increase in accrued estimated losses		90	$ 416
Amounts paid		(507)
Ending balance		702		1,119
Wildfire-related claims, current		65		65
Wildfire-related claims, non-current		572		934
2017/2018 Wildfire/Mudslide Events | SED Settlement
Loss contingency accrual roll forward
Wildfire-related claims, current		6		56
Wildfire-related claims, non-current		59		64
Other Wildfire Related Claims
Loss contingency accrual roll forward
Wildfire-related claims, non-current		678		689
Post-2018 Wildfires
Loss contingency accrual roll forward
Beginning balance		682
Increase in accrued estimated losses	$ 45	6	$ 150
Amounts paid		(16)
Ending balance		672		682
SCE
Loss contingency accrual roll forward
Wildfire-related claims, current		71		121
Wildfire-related claims, non-current		$ 1,309		$ 1,687