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, 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
Balance, shares at Dec. 31, 2023						(110.6)
Net earnings	665.1			664.3			0.8
Other comprehensive income (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
Balance, shares at Sep. 30, 2024						(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
Balance, shares at Jun. 30, 2024						(112.3)
Net earnings	249.3			249.1			0.2
Other comprehensive income (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
Balance, shares at Sep. 30, 2024						(117.8)
Balance at Dec. 31, 2024	$ 12,476.2	$ 3.2	10,038.1	11,095.3	(262.8)	$ (8,405.7)	8.1
Balance, shares at Dec. 31, 2024		317.5
Balance, shares at Dec. 31, 2024	118.4					(118.4)
Net earnings	$ 567.2			565.8			1.4
Other comprehensive income (loss)	(21.0)				(21.0)
Cash dividends declared	(142.5)			(142.5)
Stock compensation plans	90.2		89.6			$ 0.6
Stock compensation plans, shares		0.9
Embody, Inc. acquisition consideration	27.8		27.8
Embody, Inc. acquisition consideration, shares		0.3
Share repurchases	(231.9)					$ (231.9)
Share repurchases, Shares						(2.1)
Balance at Sep. 30, 2025	$ 12,766.0	$ 3.2	10,155.5	11,518.6	(283.8)	$ (8,637.0)	9.5
Balance, shares at Sep. 30, 2025		318.7
Balance, shares at Sep. 30, 2025	120.5					(120.5)
Balance at Jun. 30, 2025	$ 12,534.3	$ 3.2	10,108.1	11,335.2	(284.5)	$ (8,637.0)	9.3
Balance, shares at Jun. 30, 2025		318.4
Balance, shares at Jun. 30, 2025						(120.5)
Net earnings	231.2			230.9			0.3
Other comprehensive income (loss)	0.7				0.7
Cash dividends declared	(47.6)			(47.6)
Stock compensation plans	47.4		47.4
Stock compensation plans, shares		0.3
Balance at Sep. 30, 2025	$ 12,766.0	$ 3.2	$ 10,155.5	$ 11,518.6	$ (283.8)	$ (8,637.0)	$ 9.5
Balance, shares at Sep. 30, 2025		318.7
Balance, shares at Sep. 30, 2025	120.5					(120.5)