Goodwill and Intangible Assets (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended			6 Months Ended
		Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Jun. 30, 2018	Apr. 01, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
In-process research and development		$ 715.2			$ 715.2		$ 813.2
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings	[1]				(29.7)
Contingent consideration		433.0			433.0		453.7
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)		42.0	$ 30.0	$ 0.0	72.0
Goodwill		385.0			$ 385.0		385.0
Goodwill, Impaired, Change in Estimate Description					5
Fair Value Inputs, Earnings before Interest, Taxes, Depreciation, and Amortization Multiple					0.15
Fair Value Inputs, Long-term Revenue Growth Rate					3.50%
Fair Value Inputs, Long-term Revenue Growth Rate, Terminal Year					2.00%
Respiratory delivery platform [Member]
Finite-Lived Intangible Assets [Line Items]
In-process research and development		347.2			$ 347.2
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings		32.7			30.0
Contingent consideration		340.8			340.8
North America Generics [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill						$ 2,890.0
North America Specialty [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill						660.0
Europe Segment
Finite-Lived Intangible Assets [Line Items]
Goodwill		0.0			0.0	4,970.0	0.0
Reporting Unit, Amount of Fair Value in Excess of Carrying Amount						$ 800.0
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount						6.00%
Rest of World Segment
Finite-Lived Intangible Assets [Line Items]
Goodwill		$ 0.0			$ 0.0	$ 1,800.0	$ 0.0
Minimum
Finite-Lived Intangible Assets [Line Items]
Fair Value Inputs, Earnings before Interest, Taxes, Depreciation, and Amortization Multiple					9.0
Maximum
Finite-Lived Intangible Assets [Line Items]
Goodwill, Impaired, Change in Estimate Description					0.24
Fair Value Inputs, Earnings before Interest, Taxes, Depreciation, and Amortization Multiple					10.5
Goodwill [Member] | Maximum
Finite-Lived Intangible Assets [Line Items]
Rate used to discount net cash inflows to present value					9.00%
Reduction in Terminal Value Growth Rate [Domain]
Finite-Lived Intangible Assets [Line Items]
Fair Value Inputs, Long-term Revenue Growth Rate					2.00%
Increased Discount Rate [Domain]
Finite-Lived Intangible Assets [Line Items]
Fair Value Inputs, Long-term Revenue Growth Rate					2.00%

[1] Included in litigation settlements and other contingencies, net in the Condensed Consolidated Statements of Operations.