Acquisitions Acquisitions (Details 1) - USD ($) $ in Millions	Dec. 31, 2015	Feb. 12, 2015	Dec. 31, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Goodwill	$ 2,663.8		$ 1,760.2	$ 1,232.9
Convergence Pharmaceuticals
Business Acquisition [Line Items]
In-process research and development		$ 424.6
Other intangible assets		7.6
Goodwill		128.3
Deferred tax liability		(84.9)
Other, net		(1.0)
Total purchase price		$ 474.6