Acquisition-related Intangible Assets (Details) - USD ($) $ in Millions	Sep. 26, 2015	Dec. 31, 2014
Definite-Lived Intangible Assets [Line Items]
Definite-Lived Intangible Assets, Gross	$ 17,953.9	$ 18,132.1
Accumulated Amortization	(6,205.0)	(5,323.9)
Definite-Lived Intangible Assets, Net	11,748.9	12,808.2
Indefinite-lived Intangible Assets by Major Class [Line Items]
Indefinite-Lived Intangible Assets	1,266.2	1,301.9
Acquisition-related Intangible Assets, Gross	19,220.1	19,434.0
Acquisition-related Intangible Assets, net of Accumulated Amortization	13,015.1	14,110.1
Tradenames [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Indefinite-Lived Intangible Assets	1,234.8	1,234.8
In-process Research and Development [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Indefinite-Lived Intangible Assets	31.4	67.1
Customer Relationships [Member]
Definite-Lived Intangible Assets [Line Items]
Definite-Lived Intangible Assets, Gross	11,783.0	11,866.8
Accumulated Amortization	(3,917.6)	(3,340.6)
Definite-Lived Intangible Assets, Net	7,865.4	8,526.2
Product Technology [Member]
Definite-Lived Intangible Assets [Line Items]
Definite-Lived Intangible Assets, Gross	4,825.2	4,898.1
Accumulated Amortization	(1,728.2)	(1,501.3)
Definite-Lived Intangible Assets, Net	3,097.0	3,396.8
Tradenames [Member]
Definite-Lived Intangible Assets [Line Items]
Definite-Lived Intangible Assets, Gross	1,312.1	1,333.0
Accumulated Amortization	(526.0)	(448.7)
Definite-Lived Intangible Assets, Net	786.1	884.3
Other Intangible Assets [Member]
Definite-Lived Intangible Assets [Line Items]
Definite-Lived Intangible Assets, Gross	33.6	34.2
Accumulated Amortization	(33.2)	(33.3)
Definite-Lived Intangible Assets, Net	$ 0.4	$ 0.9