Segment Reporting (Income From Operations And Total Assets) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016	Dec. 31, 2015
Income from Operations
Income from operations	$ 15.6	$ 19.4
Amortization of intangibles	(13.4)	(11.0)
Income from operations	15.6	19.4
Total Assets
Total assets	7,394.6		$ 7,168.4
Cash and cash equivalents	289.9	247.9	429.7	$ 426.7
Investments in affiliates	429.7		414.9
Deferred tax assets, other current and noncurrent assets	611.7		560.7
Intangible assets, net	596.8		607.3
Goodwill	1,388.0		1,376.4
Consolidated total assets	7,394.6		7,168.4
Operating Segments [Member]
Income from Operations
Income from operations	72.1	67.1
Income from operations	72.1	67.1
Total Assets
Total assets	4,078.5		3,779.4
Consolidated total assets	4,078.5		$ 3,779.4
Segment Reconciling Items [Member]
Income from Operations
Corporate expenses	(26.6)	(29.7)
Stock compensation expense	(11.4)	(5.1)
Restructuring expenses	(5.1)	(1.9)
Amortization of intangibles	$ (13.4)	$ (11.0)