Condensed Consolidated Statements of Stockholders' Equity (unaudited) - USD ($) shares in Millions, $ 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		313.8				(104.8)
Net earnings	605.4			604.8			0.6
Other comprehensive loss	(7.2)				(7.2)
Cash dividends declared	(150.6)			(150.6)
Stock compensation plans	151.3		148.9	1.4		$ 1.0
Stock compensation plans, shares		1.0
Embody, Inc. acquisition consideration	150.5	$ 0.1	150.4
Embody, Inc. acquisition consideration, shares		1.2
Share repurchases	(258.3)		(2.3)			$ (256.0)
Share repurchases, Shares						(2.2)
Balance at Sep. 30, 2023	12,518.0	$ 3.2	9,801.4	10,014.9	(186.5)	$ (7,122.2)	7.2
Balance, shares at Sep. 30, 2023		316.0				(107.0)
Balance at Jun. 30, 2023	12,378.6	$ 3.2	9,766.0	9,902.3	(177.8)	$ (7,122.2)	7.1
Balance, shares at Jun. 30, 2023		315.8				(107.0)
Net earnings	162.9			162.7			0.2
Other comprehensive loss	(8.7)				(8.7)
Cash dividends declared	(50.1)			(50.1)
Stock compensation plans	35.4		35.4
Stock compensation plans, shares		0.2
Balance at Sep. 30, 2023	12,518.0	$ 3.2	9,801.4	10,014.9	(186.5)	$ (7,122.2)	7.2
Balance, shares at Sep. 30, 2023		316.0				(107.0)
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		316.2				(110.6)
Net earnings	665.1			664.3			0.8
Other comprehensive loss	(11.2)				(11.2)
Cash dividends declared	(146.5)			(146.5)
Stock compensation plans	150.8		148.0	1.4		$ 1.4
Stock compensation plans, shares		1.0
Embody, Inc. acquisition consideration	23.4		23.4
Embody, Inc. acquisition consideration, shares		0.2
Share repurchases	(786.7)					$ (786.7)
Share repurchases, Shares						(7.2)
Balance at Sep. 30, 2024	12,383.2	$ 3.2	10,017.5	10,903.7	(202.2)	$ (8,347.5)	8.5
Balance, shares at Sep. 30, 2024		317.4				(117.8)
Balance at Jun. 30, 2024	12,749.4	$ 3.2	9,974.9	10,702.5	(195.2)	$ (7,744.3)	8.4
Balance, shares at Jun. 30, 2024		317.2				(112.3)
Net earnings	249.3			249.1			0.2
Other comprehensive loss	(7.0)				(7.0)
Cash dividends declared	(47.9)			(47.9)
Stock compensation plans	42.6		42.6
Stock compensation plans, shares		0.2
Share repurchases	(603.3)					$ (603.3)
Share repurchases, Shares						(5.5)
Balance at Sep. 30, 2024	$ 12,383.2	$ 3.2	$ 10,017.5	$ 10,903.7	$ (202.2)	$ (8,347.5)	$ 8.5
Balance, shares at Sep. 30, 2024		317.4				(117.8)