Acquisitions Acquisitions (Other Acquisition) (Details) (USD $) In Millions, unless otherwise specified			0 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014 Other Company	Jul. 15, 2014 Subsequent Event Other Company
Business Acquisition [Line Items]
Acquisition purchase price			$ 50.0	$ 17.0
Identified intangible assets			36.7
Purchase price allocation, goodwill	$ 4,392.8	$ 4,340.5	$ 13.3