Segment Reporting (Income From Operations And Total Assets) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015	Dec. 31, 2014
Income from Operations
Segment income from operations	$ 118.6	$ 149.9	$ 138.0	$ 196.7
Amortization of intangibles	(11.4)	(10.9)	(22.4)	(21.4)
Income from operations	118.6	149.9	138.0	196.7
Total Assets
Segment assets	7,015.9		7,015.9		$ 6,497.7
Cash and cash equivalents	324.7	498.2	324.7	498.2	426.7	$ 363.7
Receivables from affiliates	50.7		50.7		70.1
Investments in affiliates	424.7		424.7		392.9
Deferred tax assets, other current and noncurrent assets	504.4		504.4		448.6
Intangible assets, net	520.8		520.8		507.7
Goodwill	1,176.1		1,176.1		1,114.5
Consolidated total assets	7,015.9		7,015.9		6,497.7
Operating Segments [Member]
Income from Operations
Segment income from operations	169.1	196.9	236.2	296.0
Income from operations	169.1	196.9	236.2	296.0
Total Assets
Segment assets	4,014.5		4,014.5		3,537.2
Consolidated total assets	4,014.5		4,014.5		$ 3,537.2
Segment Reconciling Items [Member]
Income from Operations
Corporate expenses	(31.3)	(27.4)	(61.0)	(56.4)
Stock compensation expense	(5.7)	(4.7)	(10.8)	(6.9)
Restructuring expenses	(2.1)	(4.0)	(4.0)	(14.6)
Amortization of intangibles	$ (11.4)	$ (10.9)	$ (22.4)	$ (21.4)