Compensation and Benefit Plans (Option Activity) (Details) - Stock options $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($) $ / shares shares
Stock Options
Beginning balance (in shares) | shares	12,354,826
Grants (in shares) | shares	909,504
Forfeited or expired (in shares) | shares	(223,836)
Exercised (in shares) | shares	(1,156,938)
Ending balance (in shares) | shares	11,883,556
Vested and expected to vest (in shares) | shares	11,538,210
Exercisable (in shares) | shares	8,074,165
Weighted Average Grant Date Fair Value
Beginning balance, weighted average exercise price (in dollars per share) | $ / shares	$ 62.78
Granted, weighted average exercise price (in dollars per share) | $ / shares	63.67
Forfeited or expired, weighted average exercise price (in dollars per share) | $ / shares	64.89
Exercised, weighted average exercise price (in dollars per share) | $ / shares	54.16
Ending balance, weighted average exercise price (in dollars per share) | $ / shares	63.64
Vested and expected to vest, weighted average exercise price (in dollars per share) | $ / shares	63.73
Exercisable, weighted average exercise price (in dollars per share) | $ / shares	$ 64.94
Remaining Contractual Term (Years)
Outstanding at December 31, 2016 (term)	5 years 5 months 4 days
Vested and expected to vest at December 31, 2016 (term)	5 years 4 months 6 days
Exercisable at December 31, 2016 (term)	4 years 3 months 21 days
Aggregate Intrinsic Value (in millions)
Vested and expected to vest at December 31, 2019 | $	$ 30
Exercisable at December 31, 2019 | $	17
Exercise of option, tax benefit | $	$ 5
SCE
Stock Options
Beginning balance (in shares) | shares	6,180,154
Grants (in shares) | shares	470,852
Forfeited or expired (in shares) | shares	(143,235)
Exercised (in shares) | shares	(810,294)
Transfers, net (in shares) | shares	100,155
Ending balance (in shares) | shares	5,797,632
Vested and expected to vest (in shares) | shares	5,620,440
Exercisable (in shares) | shares	3,849,057
Weighted Average Grant Date Fair Value
Beginning balance, weighted average exercise price (in dollars per share) | $ / shares	$ 62.03
Granted, weighted average exercise price (in dollars per share) | $ / shares	63.51
Forfeited or expired, weighted average exercise price (in dollars per share) | $ / shares	64.83
Exercised, weighted average exercise price (in dollars per share) | $ / shares	53.78
Affiliate transfers, net, weighted average grant date fair value (in dollars per share) | $ / shares	66.09
Ending balance, weighted average exercise price (in dollars per share) | $ / shares	63.31
Vested and expected to vest, weighted average exercise price (in dollars per share) | $ / shares	63.40
Exercisable, weighted average exercise price (in dollars per share) | $ / shares	$ 64.64
Remaining Contractual Term (Years)
Outstanding at December 31, 2016 (term)	5 years 5 months 12 days
Vested and expected to vest at December 31, 2016 (term)	5 years 4 months 17 days
Exercisable at December 31, 2016 (term)	4 years 3 months 10 days
Aggregate Intrinsic Value (in millions)
Vested and expected to vest at December 31, 2019 | $	$ 17
Exercisable at December 31, 2019 | $	9
Exercise of option, tax benefit | $	$ 3