CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Millions	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Treasury Stock	Non- controlling Interests
Balance at beginning of period (in shares) at Dec. 31, 2015		114,504,928
Balance at beginning of period at Dec. 31, 2015	$ 2,692.5	$ 1.2	$ 3,186.7	$ 1,966.0	$ (286.0)	$ (2,243.2)	$ 67.8
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	443.7			443.7
Other comprehensive income (loss)	(140.1)				(140.1)
Issuances under equity plans (in shares)		610,820
Issuances under equity plans	14.2		20.5			(6.3)
Share-based compensation expense	27.1		27.1
Dividends	(118.4)			(118.4)
Repurchases of common stock	(482.2)					(482.2)
Contribution from a noncontrolling interest and other noncontrolling interest transactions	9.6		(7.1)				16.7
Balance at end of period (in shares) at Dec. 31, 2016		115,115,748
Balance at end of period at Dec. 31, 2016	2,446.4	$ 1.2	3,227.2	2,291.3	(426.1)	(2,731.7)	84.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	545.4			545.4
Other comprehensive income (loss)	137.9				137.9
Issuances under equity plans (in shares)		1,187,981
Issuances under equity plans	26.1		44.2			(18.1)
Share-based compensation expense	28.7		28.7
Dividends	(123.7)			(123.7)
Repurchases of common stock	(203.9)					(203.9)
Noncontrolling interest transactions	0.7		2.5				(1.8)
Balance at end of period (in shares) at Dec. 31, 2017		116,303,729
Balance at end of period at Dec. 31, 2017	2,857.6	$ 1.2	3,302.6	2,713.0	(288.2)	(2,953.7)	82.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	556.7			556.7
Other comprehensive income (loss)	(96.3)				(96.3)
Issuances under equity plans (in shares)		492,170
Issuances under equity plans	(12.1)		5.2			(17.3)
Share-based compensation expense	27.8		27.8
Dividends	(127.3)			(127.3)
Repurchases of common stock	(500.7)					(500.7)
Noncontrolling interest transactions	(7.2)		1.9				(9.1)
Balance at end of period (in shares) at Dec. 31, 2018		116,795,899
Balance at end of period at Dec. 31, 2018	$ 2,698.5	$ 1.2	$ 3,337.5	$ 3,157.7	$ (399.8)	$ (3,471.7)	$ 73.6