Segment Results (Summary Of Unallocated Corporate Assets Recorded As A Component Of Business Unit Assets Effective January 1, 2016) (Details) - USD ($) $ in Millions	Mar. 31, 2016	Jan. 01, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Property, plant and equipment, less accumulated depreciation and amortization	$ 1,100.7		$ 1,096.3
Intangible assets, net	486.9		489.7
Other non-current assets	61.0		57.9
Total assets	2,625.9		2,687.2
Unallocated Corporate Segment [Member]
Segment Reporting Information [Line Items]
Total assets	$ 234.7		$ 770.7
Unallocated Corporate Segment [Member] | Other Reportable Segments [Member]
Segment Reporting Information [Line Items]
Property, plant and equipment, less accumulated depreciation and amortization		$ 60.2
Intangible assets, net		316.6
Other non-current assets		51.2
Total assets		$ 428.0