Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Oct. 02, 2016	Sep. 27, 2015	Oct. 02, 2016	Sep. 27, 2015	Dec. 31, 2015
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount		$ 1,590		$ 1,590		$ 1,499
Finite-lived intangible assets, accumulated amortization		(632)		(632)		(557)
Finite-lived intangible assets, identifiable intangible assets, less accumulated amortization		958		958		942
Total indefinite-lived intangible assets		324		324		248
Intangible Assets, gross carrying amount		1,914		1,914		1,747
Identifiable intangible assets, less accumulated amortization		1,282		1,282		1,190
Amortization of intangible assets		24	$ 16	72	$ 47
Brands
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Total indefinite-lived intangible assets		36		36		36
Trademarks and Trade Names
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Total indefinite-lived intangible assets		67		67		66
In Process Research and Development
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Total indefinite-lived intangible assets	[1]	214		214		138
Product Rights
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Total indefinite-lived intangible assets		7		7		8
Developed Technology Rights
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	[2]	1,083		1,083		1,010
Finite-lived intangible assets, accumulated amortization	[2]	(330)		(330)		(274)
Finite-lived intangible assets, identifiable intangible assets, less accumulated amortization	[2]	753		753		736
Brands
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount		213		213		212
Finite-lived intangible assets, accumulated amortization		(130)		(130)		(121)
Finite-lived intangible assets, identifiable intangible assets, less accumulated amortization		83		83		91
Trademarks and Trade Names
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount		63		63		63
Finite-lived intangible assets, accumulated amortization		(45)		(45)		(44)
Finite-lived intangible assets, identifiable intangible assets, less accumulated amortization		18		18		19
Other Intangible Assets
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	[2]	231		231		214
Finite-lived intangible assets, accumulated amortization	[2]	(127)		(127)		(118)
Finite-lived intangible assets, identifiable intangible assets, less accumulated amortization	[2]	$ 104		$ 104		$ 96

[1] Includes the acquisition of intangible assets associated with the purchase of a veterinary diagnostics business in Denmark in the third quarter of 2016.

[2] Includes the acquisition of intangible assets associated with the purchase of a veterinary diagnostics business in Denmark in the third quarter of 2016, the acquisition of intangible assets associated with the purchase of a livestock business in South America in the first quarter of 2016 and an increase in the acquisition date fair value of intangible assets associated with the acquisition of certain assets of Abbott Animal Health, as well as the impact of foreign exchange. See Note 4A. Acquisitions and Divestitures: Acquisitions.