Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended		3 Months Ended		12 Months Ended
	Dec. 31, 2023	Nov. 30, 2023	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 12, 2024	Jul. 25, 2024	May 31, 2024
Equity
Preferred stock repurchased					$ 656	$ 289	$ 0
Gain on shares acquired					$ 1	$ 16
Redemption amount (in dollars per share)					$ 1,000
Redemption amount following change in criteria (in dollars per share)					$ 1,020
Preferred stock, shares authorized (in shares)	50,000,000				50,000,000	50,000,000
Preferred stock, value, outstanding	$ 1,673				$ 1,645	$ 1,673
SCE
Equity
Preferred stock repurchased					628	0	$ 0
Preferred stock, value, outstanding	$ 2,495				$ 2,220	2,495
Series A Preferred Stock
Equity
Average price shares acquired (in dollars per share)	$ 971	$ 925
Preferred stock, shares outstanding (in shares)					1,159,317
Preferred stock, dividend rate, (as a percent)					5.375%
Common stock repurchased	29,186	61,497
Preferred stock current redemption amount	$ 28	$ 57				$ 28
Preferred stock, shares issued (in shares)					1,159,317
Series B Preferred Stock
Equity
Average price shares acquired (in dollars per share)	$ 955	$ 904	$ 967	$ 952
Preferred stock, shares outstanding (in shares)	532,454				503,454	532,454
Preferred stock, dividend rate, (as a percent)					5.00%
Common stock repurchased	133,323	84,223	9,000	20,000
Preferred stock current redemption amount	$ 127	$ 76				$ 127
Preferred stock repurchased			$ 9	$ 19
Preferred stock, shares issued (in shares)	532,454				503,454	532,454
Preferred Stock
Equity
Liquidation value (in dollars per share)					$ 1,000
Preferred Stock | SCE
Equity
Preferred stock, shares issued (in shares)					0
Dividends in arrears preferred stock					$ 0
Preferred stock, value, outstanding	$ 2,495				$ 2,220	$ 2,495
Cumulative preferred stock, $100 Dollars par value | SCE
Equity
Preferred stock, par value (in dollars per share)					$ 100
Preferred stock, shares authorized (in shares)					12,000,000
Cumulative preferred stock $25 Dollars par value | SCE
Equity
Preferred stock, par value (in dollars per share)					$ 25
Preferred stock, shares authorized (in shares)					24,000,000
No par value | SCE
Equity
Preferred stock, par value (in dollars per share)					$ 0
Preferred stock, shares authorized (in shares)					50,000,000
Series N Preference Stock | SCE
Equity
Preferred stock, value, outstanding										$ 350
At-the-market Program (ATM)
Equity
Aggregate sale price					$ 500
2025 Repurchase Program
Equity
Share repurchase program, authorized, amount								$ 75
2024 Repurchase Program
Equity
Share repurchase program, authorized, amount					$ 0				$ 200
Stock repurchased and retired during period (in shares)					2,412,203
Average price shares acquired (in dollars per share)					$ 82.91