Net Income Per Share - Schedule of Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net income - basic and diluted	$ 722.0	$ 817.8
Weighted average shares - basic (in shares)	107.8	107.1
Weighted average shares - diluted (in shares)	115.1	114.0
Net income per share - basic (in dollars per share)	$ 6.70	$ 7.64
Net income per share - diluted (in dollars per share)	$ 6.27	$ 7.17
Stock options
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Effect of dilutive securities (in shares)	5.3	5.0
Restricted stock awards and restricted stock units
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Effect of dilutive securities (in shares)	2.0	1.9