Equity Incentive Plans - Narrative (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Equity Incentive Plans
Common stock authorized for stock-based awards (in shares)	110.8
Common stock reserved for further issuance (in shares)	11.1
Stock Options
Equity Incentive Plans
Vesting period of options granted	3 years
Expiration term for options	10 years
Weighted average grant date fair value of options granted (in dollars per share)	$ 39.61	$ 31.45	$ 21.16
Intrinsic value of options exercised	$ 170	$ 79	$ 107
Restricted stock units
Equity Incentive Plans
Award vesting period	3 years
Weighted average grant date fair value, granted (in dollars per share)	$ 160.44	$ 132.65	$ 123.98
Total fair value of restricted stock and restricted stock units vested	$ 59	$ 49	$ 59
Performance stock awards
Equity Incentive Plans
Weighted average grant date fair value, granted (in dollars per share)	$ 159.29	$ 136.62	$ 123.08
Total fair value of restricted stock and restricted stock units vested	$ 22	$ 41	$ 87