Goodwill and Intangible Assets (Components of Intangible Assets) (Details) - USD ($) $ in Millions		6 Months Ended	12 Months Ended
		Jun. 30, 2017	Dec. 31, 2016
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, original cost		$ 19,252.3	$ 17,550.9
Finite-lived intangible assets, accumulated amortization		4,972.7	4,024.2
Finite-lived intangible assets, net book value		14,279.6	13,526.7
In-process research and development		922.4	921.1
Intangible assets, gross, excluding goodwill		20,174.7	18,472.0
Intangible assets, net book value, excluding goodwill		$ 15,202.0	$ 14,447.8
Product rights and licenses
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, estimated useful life, in years		15 years	15 years
Finite-lived intangible assets, original cost		$ 18,663.1	$ 16,968.4
Finite-lived intangible assets, accumulated amortization		4,503.8	3,585.7
Finite-lived intangible assets, net book value		$ 14,159.3	$ 13,382.7
Patents and technologies
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, estimated useful life, in years		20 years	20 years
Finite-lived intangible assets, original cost		$ 116.6	$ 116.6
Finite-lived intangible assets, accumulated amortization		110.8	108.5
Finite-lived intangible assets, net book value		$ 5.8	$ 8.1
Other
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, estimated useful life, in years		6 years	6 years
Finite-lived intangible assets, original cost	[1]	$ 472.6	$ 465.9
Finite-lived intangible assets, accumulated amortization	[1]	358.1	330.0
Finite-lived intangible assets, net book value	[1]	$ 114.5	$ 135.9

[1] Other intangible assets consist principally of customer lists, contractual rights and other contracts.