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, 2021	$ 11,563.8	$ 1.1	$ 2,307.8	$ 9,455.6	$ (183.1)	$ (17.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	2,020.5			2,020.5
Stock option exercises	38.7		38.7
Cash settlement of share-based awards in connection with disposition of discontinued operations	(11.1)		(11.1)
Treasury stock sold	5.5		5.4			0.1
Currency translation adjustments	(22.9)				(22.9)
Stock-based compensation	40.8		40.8
Restricted stock activity	(17.7)		(17.7)
Dividends declared	(65.7)			(65.7)
Balance at end of period at Mar. 31, 2022	13,551.9	1.1	2,363.9	11,410.4	(206.0)	(17.5)
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)