Net Income Per Share - Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2025	Mar. 31, 2024
Numerator:
Net income		$ 813.8	$ 637.7
Net income		$ 813.8	$ 637.7
Denominator:
Basic weighted-average shares outstanding (in shares)	[1]	1,260.0	1,252.1
Add weighted-average effect of dilutive securities:
Employee equity awards (in shares)		19.2	27.3
Diluted weighted-average shares outstanding (in shares)	[1]	1,279.2	1,279.4
Net income per share:
Basic (in dollars per share)	[1]	$ 0.65	$ 0.51
Diluted (in dollars per share)	[1]	$ 0.64	$ 0.50

[1] Prior period results have been adjusted to reflect the four-for-one stock split effected in December 2024. See Note 1, Organization and Summary of Accounting Policies, for details.