Intangible Assets and Goodwill (Intangible Assets) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Intangible Assets By Category
Amortization period related to non-IPR&D intangible assets, minimum (in years)	9 years 8 months
Gross Carrying Value	$ 4,082.3	$ 3,849.1
Accumulated Amortization	(1,694.8)	(1,410.2)
Intangible Assets, Net	2,387.5	2,438.9
Total intangible assets
Gross Carrying Value	12,552.9	5,477.8
Accumulated Amortization	(1,694.8)	(1,410.2)
Intangible Assets, Net	10,858.1	4,067.6
Increase in the gross carrying value of the intangible assets	7,075.0
Amortization	284.7	263.9	$ 270.1
Increase in amortization expense	20.8
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Estimated amortization expense, 2016	373.1
Estimated amortization expense, 2017	372.4
Estimated amortization expense, 2018	299.1
Estimated amortization expense, 2019	162.9
Estimated amortization expense, 2020	153.8
Acquired developed product rights
Intangible Assets By Category
Gross Carrying Value	3,405.9	3,405.9
Accumulated Amortization	(1,448.3)	(1,234.1)
Intangible Assets, Net	1,957.6	2,171.8
Total intangible assets
Accumulated Amortization	(1,448.3)	(1,234.1)
Technology
Intangible Assets By Category
Gross Carrying Value	565.7	333.7
Accumulated Amortization	(197.1)	(135.1)
Intangible Assets, Net	368.6	198.6
Total intangible assets
Accumulated Amortization	(197.1)	(135.1)
Licenses
Intangible Assets By Category
Gross Carrying Value	66.7	67.0
Accumulated Amortization	(22.3)	(18.1)
Intangible Assets, Net	44.4	48.9
Total intangible assets
Accumulated Amortization	(22.3)	(18.1)
Other
Intangible Assets By Category
Gross Carrying Value	44.0	42.5
Accumulated Amortization	(27.1)	(22.9)
Intangible Assets, Net	16.9	19.6
Total intangible assets
Accumulated Amortization	(27.1)	(22.9)
Acquired IPR&D product rights
Non-amortized intangible assets:
Gross Carrying Value	8,470.6	$ 1,628.7
Nogra Pharma Limited | Acquired IPR&D product rights
Total intangible assets
Intangible assets acquired	6,842.0
Quanticel | Technology
Total intangible assets
Intangible assets acquired	$ 232.0