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, 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)
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)
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)
Balance at Dec. 31, 2025	$ 12,705.8	$ 3.2	10,178.6	11,611.0	(205.7)	$ (8,889.4)	8.1
Balance, shares at Dec. 31, 2025		318.7
Balance, shares at Dec. 31, 2025	123.2					(123.2)
Net earnings	$ 630.9			628.1			2.8
Other comprehensive income (loss)	31.6				31.6
Cash dividends declared	(137.8)			(137.8)
Cash dividends to noncontrolling interest	(0.8)						(0.8)
Stock compensation plans	81.3		81.1	(0.2)		$ 0.4
Stock compensation plans, shares		0.9
Share repurchases	(585.2)					$ (585.2)
Share repurchases, Shares						(6.3)
Balance at Sep. 30, 2026	$ 12,725.6	$ 3.2	10,259.7	12,101.0	(174.1)	$ (9,474.3)	10.0
Balance, shares at Sep. 30, 2026		319.6
Balance, shares at Sep. 30, 2026	129.5					(129.5)
Balance at Jun. 30, 2026	$ 12,632.5	$ 3.2	10,223.2	11,955.1	(163.9)	$ (9,393.7)	8.7
Balance, shares at Jun. 30, 2026		319.4
Balance, shares at Jun. 30, 2026						(128.8)
Net earnings	192.9			191.6			1.3
Other comprehensive income (loss)	(10.2)				(10.2)
Cash dividends declared	(45.6)			(45.6)
Stock compensation plans	36.5		36.5
Stock compensation plans, shares		0.2
Share repurchases	(80.6)					$ (80.6)
Share repurchases, Shares						(0.7)
Balance at Sep. 30, 2026	$ 12,725.6	$ 3.2	$ 10,259.7	$ 12,101.0	$ (174.1)	$ (9,474.3)	$ 10.0
Balance, shares at Sep. 30, 2026		319.6
Balance, shares at Sep. 30, 2026	129.5					(129.5)