Acquisitions and Other Transactions (Agila Specialties) (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
	Dec. 04, 2013	Sep. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Cash paid for acquisitions, net			$ (693.1)	$ (50.0)	$ (1,261.9)
Payments for contingent consideration		$ 150.0	0.0	150.0	0.0
Purchase consideration, contingent consideration	$ 230.0		526.4
Gain recognized related to contingent consideration				80.0
Payment to acquire intangible assets			425.0	383.0
Purchase price allocation, goodwill			5,380.1	4,049.3	4,340.5
Agila Specialties
Business Acquisition [Line Items]
Acquisition purchase price	1,430.0
Cash paid for acquisitions, net	3.4
Purchase consideration, contingent consideration, maximum	$ 250.0		173.0
Purchase consideration, contingent consideration			20.0
Acquisition related costs					$ 49.8
Rate used to discount net cash inflows to present values	13.00%
Research and development in process, expect completion cost			$ 10.0
Identified intangible assets	$ 280.0
Equity method investment	152.8
Payment to acquire intangible assets				$ 120.0
Purchase price allocation, goodwill	936.6
Amount of goodwill expected to be tax deductible	0.0	$ 711.0
Agila Specialties | Equity method investments
Business Acquisition [Line Items]
Equity method investment	$ 125.0
Agila Specialties | Sagent Agila | Equity method investments
Business Acquisition [Line Items]
Equity method investment, ownership percentage	50.00%
Agila Specialties | Product rights and licenses
Business Acquisition [Line Items]
Identified intangible assets	$ 221.0
Acquired intangible assets, weighted average useful life, in years	8 years
Agila Specialties | Customer relationships
Business Acquisition [Line Items]
Identified intangible assets	$ 59.0
Acquired intangible assets, weighted average useful life, in years	5 years