Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Non-Controlling Interests
Balance, beginning of period at Dec. 31, 2021	$ 2,531.7	$ 1.2	$ 3,444.7	$ 3,634.6	$ (389.4)	$ (4,169.4)	$ 10.0
Balance, beginning of period (in shares) at Dec. 31, 2021		117,762,065
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	91.6			91.6
Other comprehensive income (loss)	(10.2)				(10.2)
Issuances under equity plans	(8.3)		(0.1)			(8.2)
Issuances under equity plans (in shares)		246,804
Share-based compensation expense	10.6		10.6
Repurchases of common stock	(59.9)					(59.9)
Noncontrolling interest transactions	0.6						0.6
Balance, end of period at Mar. 31, 2022	2,556.1	$ 1.2	3,455.2	3,726.2	(399.6)	(4,237.5)	10.6
Balance, end of period (in shares) at Mar. 31, 2022		118,008,869
Balance, beginning of period at Dec. 31, 2021	2,531.7	$ 1.2	3,444.7	3,634.6	(389.4)	(4,169.4)	10.0
Balance, beginning of period (in shares) at Dec. 31, 2021		117,762,065
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	325.1
Other comprehensive income (loss)	(143.8)
Balance, end of period at Sep. 30, 2022	2,416.6	$ 1.2	3,472.3	3,888.5	(533.2)	(4,422.7)	10.5
Balance, end of period (in shares) at Sep. 30, 2022		118,024,212
Balance, beginning of period at Mar. 31, 2022	2,556.1	$ 1.2	3,455.2	3,726.2	(399.6)	(4,237.5)	10.6
Balance, beginning of period (in shares) at Mar. 31, 2022		118,008,869
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	122.2			122.2
Other comprehensive income (loss)	(71.9)				(71.9)
Issuances under equity plans	(0.3)		(0.4)			0.1
Issuances under equity plans (in shares)		1,062
Share-based compensation expense	11.0		11.0
Dividends	(71.2)			(71.2)
Repurchases of common stock	(100.1)					(100.1)
Noncontrolling interest transactions	(1.0)						(1.0)
Balance, end of period at Jun. 30, 2022	2,444.8	$ 1.2	3,465.8	3,777.2	(471.5)	(4,337.5)	9.6
Balance, end of period (in shares) at Jun. 30, 2022		118,009,931
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	111.3			111.3
Other comprehensive income (loss)	(61.7)				(61.7)
Issuances under equity plans	(0.4)		(0.2)			(0.2)
Issuances under equity plans (in shares)		14,281
Share-based compensation expense	7.6		7.6
Repurchases of common stock	(85.0)					(85.0)
Noncontrolling interest transactions	0.0		(0.9)				0.9
Balance, end of period at Sep. 30, 2022	2,416.6	$ 1.2	3,472.3	3,888.5	(533.2)	(4,422.7)	10.5
Balance, end of period (in shares) at Sep. 30, 2022		118,024,212
Balance, beginning of period at Dec. 31, 2022	2,458.1	$ 1.2	3,484.2	3,868.5	(458.7)	(4,447.9)	10.8
Balance, beginning of period (in shares) at Dec. 31, 2022		118,028,009
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	77.8			77.8
Other comprehensive income (loss)	7.1				7.1
Issuances under equity plans	(8.6)		1.3			(9.9)
Issuances under equity plans (in shares)		336,079
Share-based compensation expense	5.1		5.1
Repurchases of common stock	(30.3)					(30.3)
Noncontrolling interest transactions	0.2						0.2
Balance, end of period at Mar. 31, 2023	2,509.4	$ 1.2	3,490.6	3,946.3	(451.6)	(4,488.1)	11.0
Balance, end of period (in shares) at Mar. 31, 2023		118,364,088
Balance, beginning of period at Dec. 31, 2022	2,458.1	$ 1.2	3,484.2	3,868.5	(458.7)	(4,447.9)	10.8
Balance, beginning of period (in shares) at Dec. 31, 2022		118,028,009
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	173.3
Other comprehensive income (loss)	(24.4)
Balance, end of period at Sep. 30, 2023	2,413.3	$ 1.2	3,505.0	3,968.7	(483.1)	4,589.1	10.6
Balance, end of period (in shares) at Sep. 30, 2023		118,378,414
Balance, beginning of period at Mar. 31, 2023	2,509.4	$ 1.2	3,490.6	3,946.3	(451.6)	(4,488.1)	11.0
Balance, beginning of period (in shares) at Mar. 31, 2023		118,364,088
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	65.2			65.2
Other comprehensive income (loss)	(7.9)				(7.9)
Issuances under equity plans	(0.1)		(0.2)			0.1
Issuances under equity plans (in shares)		854
Share-based compensation expense	6.9		6.9
Dividends	(73.1)			(73.1)
Repurchases of common stock	(50.2)					(50.2)
Noncontrolling interest transactions	(0.4)						(0.4)
Balance, end of period at Jun. 30, 2023	2,449.8	$ 1.2	3,497.3	3,938.4	(459.5)	(4,538.2)	10.6
Balance, end of period (in shares) at Jun. 30, 2023		118,364,942
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	30.3			30.3
Other comprehensive income (loss)	(23.6)				(23.6)
Issuances under equity plans	(0.8)		(0.3)			(0.5)
Issuances under equity plans (in shares)		13,472
Share-based compensation expense	(8.0)		8.0
Repurchases of common stock	(50.4)					50.4
Balance, end of period at Sep. 30, 2023	$ 2,413.3	$ 1.2	$ 3,505.0	$ 3,968.7	$ (483.1)	$ 4,589.1	$ 10.6
Balance, end of period (in shares) at Sep. 30, 2023		118,378,414