Net Income per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Numerator:
Net income	$ 310.2	$ 471.0	$ 252.7
Denominator:
Weighted-average shares used to compute basic net income per share (in shares)	320.0	322.1	324.4
Dilutive effect of employee stock awards (in shares)	5.9	7.4	7.2
Weighted-average shares used to compute diluted net income per share (in shares)	325.9	329.5	331.6
Net income per share:
Net income per share, basic (in dollars per share)	$ 0.97	$ 1.46	$ 0.78
Net income per share, diluted (in dollars per share)	$ 0.95	$ 1.43	$ 0.76
Anti-dilutive shares (in shares)	6.4	3.4	0.5