Condensed Consolidated Statements of Changes in Stockholders' Equity (unaudited) - USD ($) $ in Millions	Total	Common stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive loss	Treasury stock
Balance at beginning of period at Dec. 31, 2022	$ 16,037.8	$ 1.1	$ 2,510.2	$ 13,730.7	$ (187.0)	$ (17.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	283.1			283.1
Stock option exercises	33.7		33.7
Treasury stock sold	4.7		4.6			0.1
Currency translation adjustments	24.1				24.1
Stock-based compensation	31.4		31.4
Restricted stock activity	(9.5)		(9.5)
Dividends declared	(72.6)			(72.6)
Balance at end of period at Mar. 31, 2023	16,332.7	1.1	2,570.4	13,941.2	(162.9)	(17.1)
Balance at beginning of period at Dec. 31, 2023	17,444.8	1.1	2,767.0	14,816.3	(122.8)	(16.8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	382.0			382.0
Stock option exercises	47.4		47.4
Treasury stock sold	5.8		5.7			0.1
Currency translation adjustments	(19.1)				(19.1)
Stock-based compensation	34.6		34.6
Restricted stock activity	(17.6)		(17.6)
Dividends declared	(80.3)			(80.3)
Balance at end of period at Mar. 31, 2024	$ 17,797.6	$ 1.1	$ 2,837.1	$ 15,118.0	$ (141.9)	$ (16.7)