Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Shares	Common Stock and Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2020		327.7
Beginning balance at Dec. 31, 2020	$ 4,543.5		$ 7,156.9	$ 55.6	$ (2,669.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	252.7				252.7
Other comprehensive income (loss), net	(57.7)			(57.7)
Issuance of common stock (in shares)		9.9
Issuance of common stock	56.4		56.4
Common stock assumed upon business combination	2.7		2.7
Repurchase and retirement of common stock (in shares)		(16.0)
Repurchase and retirement of common stock	(443.5)		(206.2)		(237.3)
Share-based compensation expense	221.9		221.9
Payment of cash dividends	(259.1)		(259.1)
Ending balance (in shares) at Dec. 31, 2021		321.6
Ending balance at Dec. 31, 2021	4,316.9		6,972.6	(2.1)	(2,653.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	471.0				471.0
Other comprehensive income (loss), net	6.3			6.3
Issuance of common stock (in shares)		10.9
Issuance of common stock	57.2		57.2
Repurchase and retirement of common stock (in shares)		(9.6)
Repurchase and retirement of common stock	(315.2)		(122.3)		(192.9)
Share-based compensation expense	209.3		209.3
Payment of cash dividends	$ (270.4)		(270.4)
Ending balance (in shares) at Dec. 31, 2022	322.9	322.9
Ending balance at Dec. 31, 2022	$ 4,475.1		6,846.4	4.2	(2,375.5)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	310.2				310.2
Other comprehensive income (loss), net	44.9			44.9
Issuance of common stock (in shares)		10.8
Issuance of common stock	61.9		61.9
Repurchase and retirement of common stock (in shares)		(13.4)
Repurchase and retirement of common stock	(398.4)		(167.3)		(231.1)
Share-based compensation expense	279.8		279.8
Payment of cash dividends	$ (280.8)		(280.8)
Ending balance (in shares) at Dec. 31, 2023	320.3	320.3
Ending balance at Dec. 31, 2023	$ 4,492.7		$ 6,740.0	$ 49.1	$ (2,296.4)