Summary of Option Activity (Details) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) $ / shares shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Beginning Balance, Options | shares	12.7
Granted, Options | shares	1.5
Exercised, Options | shares	(2.8)
Cancelled, Options | shares	(0.1)
Ending Balance, Options | shares	11.3
Exercisable as of December 31, 2021, Options | shares	6.7
Beginning Balance, Weighted-Average Exercise Price | $ / shares	$ 50.72
Granted, Weighted-Average Exercise Price | $ / shares	84.71
Exercised, Weighted-Average Exercise Price | $ / shares	35.48
Cancelled, Weighted-Average Exercise Price | $ / shares	75.48
Ending Balance, Weighted-Average Exercise Price | $ / shares	58.83
Exercisable as of December 31, 2021, Weighted-Average Exercise Price | $ / shares	$ 44.80
Outstanding as of December 31, 2021, Weighted-Average Remaining Contractual Term, years	6 years 1 month 6 days
Exercisable as of December 31, 2021, Weighted-Average Remaining Contractual Term, years	4 years 3 months 18 days
Outstanding as of December 31, 2021, Aggregate Intrinsic Value | $	$ 493.3
Exercisable as of December 31, 2021, Aggregate Intrinsic Value | $	$ 380.5