Compensation and Benefit Plans - Option Activity (Details) - Stock options $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) $ / shares shares
Stock Options
Beginning balance (in shares) | shares	11,418,243
Grants (in shares) | shares	749,968
Forfeited or expired (in shares) | shares	(107,158)
Exercised (in shares) | shares	(3,417,478)
Ending balance (in shares) | shares	8,643,575
Vested and expected to vest (in shares) | shares	8,438,864
Exercisable (in shares) | shares	6,651,227
Weighted Average Fair Value
Beginning balance, weighted average exercise price (in dollars per share) | $ / shares	$ 64.30
Granted, weighted average exercise price (in dollars per share) | $ / shares	66.70
Forfeited or expired, weighted average exercise price (in dollars per share) | $ / shares	71.89
Exercised, weighted average exercise price (in dollars per share) | $ / shares	64.49
Ending balance, weighted average exercise price (in dollars per share) | $ / shares	64.33
Vested and expected to vest, weighted average exercise price (in dollars per share) | $ / shares	64.40
Exercisable, weighted average exercise price (in dollars per share) | $ / shares	$ 64.79
Outstanding, remaining contractual term	5 years 3 days
Vested and expected to vest, remaining contractual term	4 years 11 months 12 days
Exercisable, remaining contractual term	4 years 2 months 8 days
Vested and expected to vest, intrinsic value | $	$ 130
Exercisable, intrinsic value | $	100
Exercise of option, tax benefit | $	$ 13
SCE
Stock Options
Beginning balance (in shares) | shares	5,192,275
Grants (in shares) | shares	390,760
Forfeited or expired (in shares) | shares	(98,077)
Exercised (in shares) | shares	(1,892,980)
Affiliate transfers, net (in shares) | shares	14,472
Ending balance (in shares) | shares	3,606,450
Vested and expected to vest (in shares) | shares	3,508,129
Exercisable (in shares) | shares	2,609,173
Weighted Average Fair Value
Beginning balance, weighted average exercise price (in dollars per share) | $ / shares	$ 64.22
Granted, weighted average exercise price (in dollars per share) | $ / shares	66.82
Forfeited or expired, weighted average exercise price (in dollars per share) | $ / shares	71.44
Exercised, weighted average exercise price (in dollars per share) | $ / shares	64.49
Affiliate transfers, net, weighted average grant date fair value (in dollars per share) | $ / shares	64.22
Ending balance, weighted average exercise price (in dollars per share) | $ / shares	64.18
Vested and expected to vest, weighted average exercise price (in dollars per share) | $ / shares	64.25
Exercisable, weighted average exercise price (in dollars per share) | $ / shares	$ 64.66
Outstanding, remaining contractual term	5 years 3 months 7 days
Vested and expected to vest, remaining contractual term	5 years 2 months 15 days
Exercisable, remaining contractual term	4 years 3 months 29 days
Vested and expected to vest, intrinsic value | $	$ 55
Exercisable, intrinsic value | $	40
Exercise of option, tax benefit | $	$ 7