Consolidated Statement of Stockholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock [Member]	Capital in Excess of Par Value [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Noncontrolling Interests [Member]
Beginning balance at Dec. 31, 2022	$ 9,190.2	$ 211.9	$ 6,509.9	$ 3,562.2	$ (1,140.4)	$ 46.6
Beginning balance (in shares) at Dec. 31, 2022		211.9
Net earnings	486.6			486.5		0.1
Net purchase of subsidiary shares from noncontrolling interests	(5.4)					(5.4)
Dividends paid to noncontrolling interests	(0.7)					(0.7)
Net change in pension asset/liability, net of taxes	0.8				0.8
Foreign currency translation	33.2				33.3	(0.1)
Change in fair value of derivative instruments, net of taxes	4.9				4.9
Compensation expense related to stock option plan grants	7.7		7.7
Common stock issued in: purchase transactions	186.5	$ 1.0	185.5
Common stock issued in: purchase transactions (in shares)		1.0
Stock option plans	21.2	$ 0.5	20.7
Stock option plans (in shares)		0.5
Employee stock purchase plan	9.1	$ 0.1	9.0
Employee stock purchase plan (in shares)		0.1
Shares issued to benefit plans	84.6	$ 0.4	84.2
Shares issued to benefit plans (in shares)		0.4
Deferred compensation and restricted stock	(41.9)	$ 0.3	(42.2)
Deferred compensation and restricted (in shares)		0.3
Cash dividends declared on common stock	(118.5)			(118.5)
Ending balance at Mar. 31, 2023	9,858.3	$ 214.2	6,774.8	3,930.2	(1,101.4)	40.5
Ending balance, (in shares) at Mar. 31, 2023		214.2
Beginning balance at Dec. 31, 2022	9,190.2	$ 211.9	6,509.9	3,562.2	(1,140.4)	46.6
Beginning balance (in shares) at Dec. 31, 2022		211.9
Net earnings	722.4
Net change in pension asset/liability, net of taxes	1.5
Change in fair value of derivative instruments, net of taxes	29.2
Compensation expense related to stock option plan grants	15.5
Ending balance at Jun. 30, 2023	10,440.0	$ 215.5	7,018.0	4,045.1	(882.9)	44.3
Ending balance, (in shares) at Jun. 30, 2023		215.5
Beginning balance at Mar. 31, 2023	9,858.3	$ 214.2	6,774.8	3,930.2	(1,101.4)	40.5
Beginning balance (in shares) at Mar. 31, 2023		214.2
Net earnings	235.8			234.5		1.3
Net purchase of subsidiary shares from noncontrolling interests	2.7					2.7
Dividends paid to noncontrolling interests	(0.5)					(0.5)
Net change in pension asset/liability, net of taxes	0.7				0.7
Foreign currency translation	193.8				193.5	0.3
Change in fair value of derivative instruments, net of taxes	24.3				24.3
Compensation expense related to stock option plan grants	7.8		7.8
Common stock issued in: purchase transactions	178.6	$ 0.8	177.8
Common stock issued in: purchase transactions (in shares)		0.8
Stock option plans	22.8	$ 0.4	22.4
Stock option plans (in shares)		0.4
Employee stock purchase plan	13.0	$ 0.1	12.9
Employee stock purchase plan (in shares)		0.1
Deferred compensation and restricted stock	22.3		22.3
Cash dividends declared on common stock	(119.6)			(119.6)
Ending balance at Jun. 30, 2023	10,440.0	$ 215.5	7,018.0	4,045.1	(882.9)	44.3
Ending balance, (in shares) at Jun. 30, 2023		215.5
Beginning balance at Dec. 31, 2023	$ 10,815.3	$ 216.7	7,297.8	4,052.9	(792.1)	40.0
Beginning balance (in shares) at Dec. 31, 2023	216.7	216.7
Net earnings	$ 612.7			608.4		4.3
Net purchase of subsidiary shares from noncontrolling interests	(0.3)					(0.3)
Dividends paid to noncontrolling interests	(0.6)					(0.6)
Net change in pension asset/liability, net of taxes	0.3				0.3
Foreign currency translation	(155.8)				(155.8)
Change in fair value of derivative instruments, net of taxes	(1.4)				(1.4)
Compensation expense related to stock option plan grants	15.1		15.1
Common stock issued in: purchase transactions	88.3	$ 0.4	87.9
Common stock issued in: purchase transactions (in shares)		0.4
Stock option plans	39.9	$ 0.6	39.3
Stock option plans (in shares)		0.6
Employee stock purchase plan	12.2	$ 0.1	12.1
Employee stock purchase plan (in shares)		0.1
Shares issued to benefit plans	98.5	$ 0.4	98.1
Shares issued to benefit plans (in shares)		0.4
Deferred compensation and restricted stock	(48.0)	$ 0.3	(48.3)
Deferred compensation and restricted (in shares)		0.3
Cash dividends declared on common stock	(132.0)			(132.0)
Ending balance at Mar. 31, 2024	11,344.2	$ 218.5	7,502.0	4,529.3	(949.0)	43.4
Ending balance, (in shares) at Mar. 31, 2024		218.5
Beginning balance at Dec. 31, 2023	$ 10,815.3	$ 216.7	7,297.8	4,052.9	(792.1)	40.0
Beginning balance (in shares) at Dec. 31, 2023	216.7	216.7
Net earnings	$ 898.1
Net change in pension asset/liability, net of taxes	0.2
Change in fair value of derivative instruments, net of taxes	(2.8)
Compensation expense related to stock option plan grants	$ 25.6
Stock option plans (in shares)	1.0
Ending balance at Jun. 30, 2024	$ 11,599.3	$ 219.1	7,611.4	4,681.2	(939.2)	26.8
Ending balance, (in shares) at Jun. 30, 2024	219.1	219.1
Beginning balance at Mar. 31, 2024	$ 11,344.2	$ 218.5	7,502.0	4,529.3	(949.0)	43.4
Beginning balance (in shares) at Mar. 31, 2024		218.5
Net earnings	285.4			283.4		2.0
Net purchase of subsidiary shares from noncontrolling interests	(18.4)					(18.4)
Dividends paid to noncontrolling interests	(0.3)					(0.3)
Net change in pension asset/liability, net of taxes	(0.1)				(0.1)
Foreign currency translation	11.4				11.3	0.1
Change in fair value of derivative instruments, net of taxes	(1.4)				(1.4)
Compensation expense related to stock option plan grants	10.5		10.5
Common stock issued in: purchase transactions	45.5	$ 0.2	45.3
Common stock issued in: purchase transactions (in shares)		0.2
Stock option plans	24.8	$ 0.3	24.5
Stock option plans (in shares)		0.3
Employee stock purchase plan	16.5		16.5
Deferred compensation and restricted stock	12.7	$ 0.1	12.6
Deferred compensation and restricted (in shares)		0.1
Cash dividends declared on common stock	(131.5)			(131.5)
Ending balance at Jun. 30, 2024	$ 11,599.3	$ 219.1	$ 7,611.4	$ 4,681.2	$ (939.2)	$ 26.8
Ending balance, (in shares) at Jun. 30, 2024	219.1	219.1