Intangible Assets (Summary of Intangible Assets) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross acquired intangible assets	$ 41,509.6	$ 11,108.9
Less: Accumulated amortization	(2,638.1)	(1,935.6)
Other intangible assets, net	38,871.5	9,173.3	$ 9,450.6	$ 4,934.4
Currently marketed products
Finite-Lived Intangible Assets [Line Items]
Gross acquired intangible assets	34,104.6	9,371.9
Less: Accumulated amortization	(2,467.7)	(1,852.1)
Other intangible assets, net	31,636.9	7,519.8
IPR&D
Finite-Lived Intangible Assets [Line Items]
Gross acquired intangible assets	6,522.8	1,362.0
Less: Accumulated amortization	0.0	0.0
Other intangible assets, net	6,522.8	1,362.0
Other intangible assets
Finite-Lived Intangible Assets [Line Items]
Gross acquired intangible assets	882.2	375.0
Less: Accumulated amortization	(170.4)	(83.5)
Other intangible assets, net	$ 711.8	$ 291.5