Goodwill and Other Intangible Assets (Amortization Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Intangible Assets Excluding Goodwill [Line Items]
Intangible asset amortization expense	$ 1,195.3	$ 814.7	$ 366.1
Intangible asset impairment charges	68.3
Total intangible asset amortization expense (including impairment charges)	1,263.6	846.0	393.8
In-process research and development
Intangible Assets Excluding Goodwill [Line Items]
Intangible asset impairment charges	$ 49.9	$ 31.3	$ 27.7