Condensed Consolidated Statements of Stockholders' Equity (unaudited) - USD ($) $ in Millions	Total	Common Stock [Member]	Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Treasury Shares [Member]	Noncontrolling Interest [Member]
Balance at Dec. 31, 2022	$ 12,027.0	$ 3.1	$ 9,504.4	$ 9,559.3	$ (179.3)	$ (6,867.2)	$ 6.7
Balance, shares at Dec. 31, 2022		313,800,000				(104,800,000)
Net earnings	232.8			232.5			0.2
Other comprehensive income (loss)	1.3				1.3
Cash dividends declared	(50.4)			(50.4)
Stock compensation plans	56.0		55.4	0.3		$ 0.3
Stock compensation plans, shares		500,000
Embody, Inc. acquisition consideration	135.0	$ 0.1	134.9
Embody, Inc. acquisition consideration, shares		1,100,000
Share repurchases	(244.0)		(2.3)			$ (241.7)
Share repurchases, Shares						(2,100,000)
Balance at Mar. 31, 2023	12,157.6	$ 3.2	9,692.4	9,741.7	(178.0)	$ (7,108.6)	6.9
Balance, shares at Mar. 31, 2023		315,400,000				(106,900,000)
Balance at Dec. 31, 2023	12,488.1	$ 3.2	9,846.1	10,384.5	(191.0)	$ (7,562.3)	7.7
Balance, shares at Dec. 31, 2023		316,200,000				(110,600,000)
Net earnings	172.8			172.4			0.4
Other comprehensive income (loss)	(20.2)				(20.2)
Cash dividends declared	(49.3)			(49.3)
Stock compensation plans	79.2		76.4	1.4		$ 1.4
Stock compensation plans, shares		800,000
Embody, Inc. acquisition consideration	23.4		23.4
Embody, Inc. acquisition consideration, shares		200,000
Share repurchases	(88.0)					$ (88.0)
Share repurchases, Shares						(0.9)
Balance at Mar. 31, 2024	$ 12,606.0	$ 3.2	$ 9,945.9	$ 10,509.0	$ (211.2)	$ (7,648.9)	$ 8.1
Balance, shares at Mar. 31, 2024		317,200,000				(111,500,000)