Segment Information (Schedule Of Consolidated Financial Statements By Industry Segments) (Details) - USD ($) $ in Millions	3 Months Ended									12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017		Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016
Segment Reporting Information [Line Items]
Revenues	$ 839.6	$ 855.8	$ 851.0	$ 799.1	$ 714.2		$ 695.9	$ 702.5	$ 673.4	$ 3,345.5	$ 2,786.0		$ 2,748.0
Business Combination, Integration Related Costs										19.8	7.8		0.0
Operating profit from continuing operations	110.1	$ 123.9	$ 113.0	$ 94.3	87.2		$ 102.1	$ 105.8	$ 93.3	441.3	388.4		186.7
Interest income										2.3	2.5		1.9
Interest expense										(50.9)	(36.1)		(36.5)
Miscellaneous income										18.7	12.7		12.0
Income before income taxes										411.4	367.5		164.1
Assets	4,042.7				3,593.5					4,042.7	3,593.5		3,428.0
Goodwill	1,403.7				1,206.9					1,403.7	1,206.9		1,149.2
Capital expenditures										108.8	49.0		51.5
Depreciation and amortization										120.0	72.7		67.4
Restructuring charges										7.2	13.0		0.0
Corporate Before Environmental Charges [Member]
Segment Reporting Information [Line Items]
Operating profit from continuing operations										(65.5)	(68.9)		(62.2)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating profit from continuing operations										506.8	457.3		441.3
Assets	3,778.6				2,951.1					3,778.6	2,951.1		2,815.0
Capital expenditures										108.3	48.7		51.2
Depreciation and amortization										117.0	71.1		62.5
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Assets	$ 264.1				$ 642.4	[1]				264.1	642.4	[1]	613.0	[1]
Capital expenditures										0.5	0.3		0.3
Depreciation and amortization										$ 3.0	$ 1.6		$ 4.9

[1] Net sales and assets by geographic region are based on the location of the business unit.