Acquisitions, Assets and Liabilities Held for Sale, Research and Development and Collaborative Arrangements, Equity-Method Investments and Cost-Method Investment - Equity-Method Investments (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 27, 2015	Oct. 02, 2016	Sep. 27, 2015	Apr. 03, 2016
Hisun Pfizer Pharmaceuticals Co. Ltd [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		49.00%		49.00%
Equity method investment, impairment	$ 470	$ 211	$ 470
Equity Method Investments		$ 529
Hisun Pfizer Pharmaceuticals Co. Ltd [Member] | Discounted Cash Flows Technique [Member]
Schedule of Equity Method Investments [Line Items]
Discount rate		13.00%
Laboratorio Teuto Brasilero [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		40.00%
Equity method investment, impairment		$ 50
Laboratorio Teuto Brasilero [Member] | Other Income (Expense) [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, impairment		$ 50
Laboratorio Teuto Brasilero [Member] | Discounted Cash Flows Technique [Member]
Schedule of Equity Method Investments [Line Items]
Discount rate		17.50%
Laboratorio Teuto Brasilero [Member] | Laboratorio Teuto Brasilero [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage		60.00%