Commitments and Contingencies (Wildfires litigation) (Details) $ in Millions	1 Months Ended			2 Months Ended	3 Months Ended				6 Months Ended		12 Months Ended
	Oct. 31, 2021 USD ($)	Jan. 31, 2021 $ / claim	Oct. 31, 2020 USD ($) $ / claim	Apr. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2019 USD ($)	Jun. 30, 2023 USD ($) plaintiff	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Increase in accrued estimated losses									$ 90	$ 416
Expected revenue through electric rates									6	26
Total after-tax charge									61	281
Payments									507
Charge for wildfire-related claims					$ 702				702		$ 1,119
Post-2018 Wildfires
Commitments and Contingencies
Increase in accrued estimated losses							$ 45		6	150
Total after-tax charge							$ 1		4	$ 8
Payments									16
Charge for wildfire-related claims					672				672		682
SCE
Commitments and Contingencies
Regulatory Assets					12,277				12,277		10,678
SCE | 2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Regulatory Assets					43				43
SCE | 2017/2018 Wildfire/Mudslide Events | SED Settlement
Commitments and Contingencies
Charge for wildfire-related claims	$ 550
Third-party uninsured claims cost recovery waiver	375
Fine to State	110
Shareholder-funded safety measures costs	$ 65
SCE | 2017/2018 Wildfire/Mudslide Events | Local Public Entity Settlements
Commitments and Contingencies
Payments								$ 360
SCE | 2017/2018 Wildfire/Mudslide Events | TKM Subrogation Settlement
Commitments and Contingencies
Payments			$ 1,200
Payment agreement for each dollar of claim | $ / claim			0.555
SCE | 2017/2018 Wildfire/Mudslide Events | Individual Plaintiff Settlements
Commitments and Contingencies
Payments					278	$ 148					$ 1,700	$ 1,700	$ 300
SCE | 2017/2018 Wildfire/Mudslide Events | Settled Litigation
Commitments and Contingencies
Charge for wildfire-related claims					130				130
SCE | 2017/2018 Wildfire/Mudslide Events | Settled Litigation | SED Settlement
Commitments and Contingencies
Charge for wildfire-related claims					65				65
SCE | 2017/2018 Wildfire/Mudslide Events | Estimated Losses for Remaining Alleged and Potential Claims
Commitments and Contingencies
Charge for wildfire-related claims					572				572
SCE | 2017/2018 Wildfire/Mudslide Events | Aggregate
Commitments and Contingencies
Increase in accrued estimated losses									8,800
Expected revenue through electric rates									382
Payments									$ 8,100
SCE | 2017/2018 Wildfire/Mudslide Events | Aggregate | Individual Plaintiff Settlements
Commitments and Contingencies
Number of plaintiffs | plaintiff									10,000
SCE | November 2018 Wildfires | Woolsey Subrogation Settlement
Commitments and Contingencies
Payments				$ 2,200
Payment agreement for each dollar of claim | $ / claim		0.67
SCE | Post-2018 Wildfires
Commitments and Contingencies
Expected insurance recoveries					466				$ 466
Regulatory Assets					$ 166				166
SCE | Post-2018 Wildfires | Aggregate
Commitments and Contingencies
Increase in accrued estimated losses									702
Expected revenue through electric rates									166
Total after-tax charge									45
Payments									30
SCE | Post-2018 Wildfires | Aggregate | CPUC
Commitments and Contingencies
Expected revenue through electric rates									152
SCE | Post-2018 Wildfires | Aggregate | FERC
Commitments and Contingencies
Expected revenue through electric rates									$ 14