Segments of Business and Geographic Areas - Sales By Segment Of Business (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Oct. 02, 2016	Sep. 27, 2015	Jun. 28, 2015	Oct. 02, 2016	Sep. 27, 2015
Segment Reporting Information [Line Items]
Gain (Loss) on Sale of Assets and Asset Impairment Charges				$ 276	$ 1,274
Sales by segment of business
Sales	$ 17,820	$ 17,102		$ 53,784	52,263
Percentage Change In Sales By Segment Of Business	4.20%			2.90%
United States
Sales by segment of business
Sales	$ 9,381	8,791		$ 28,274	26,394
Percentage Change In Sales By Segment Of Business	6.70%			7.10%
International
Sales by segment of business
Sales	$ 8,439	8,311		$ 25,510	25,869
Percentage Change In Sales By Segment Of Business	1.50%			(1.40%)
Consumer
Segment Reporting Information [Line Items]
Gain (Loss) on Sale of Assets and Asset Impairment Charges		229			229
Sales by segment of business
Sales	$ 3,261	3,314		$ 9,875	10,187
Percentage Change In Sales By Segment Of Business	(1.60%)			(3.10%)
Consumer | United States
Sales by segment of business
Sales	$ 1,291	1,277		$ 4,033	3,991
Percentage Change In Sales By Segment Of Business	1.10%			1.10%
Consumer | International
Sales by segment of business
Sales	$ 1,970	2,037		$ 5,842	6,196
Percentage Change In Sales By Segment Of Business	(3.30%)			(5.70%)
Pharmaceutical
Segment Reporting Information [Line Items]
Gain (Loss) on Sale of Assets and Asset Impairment Charges			$ 981		981
Sales by segment of business
Sales	$ 8,400	7,694		$ 25,232	23,366
Percentage Change In Sales By Segment Of Business	9.20%			8.00%
Pharmaceutical | United States
Sales by segment of business
Sales	$ 5,042	4,509		$ 15,123	13,423
Percentage Change In Sales By Segment Of Business	11.80%			12.70%
Pharmaceutical | International
Sales by segment of business
Sales	$ 3,358	3,185		$ 10,109	9,943
Percentage Change In Sales By Segment Of Business	5.40%			1.70%
Medical Devices
Sales by segment of business
Sales	$ 6,159	6,094		$ 18,677	18,710
Percentage Change In Sales By Segment Of Business	1.10%			(0.20%)
Medical Devices | United States
Sales by segment of business
Sales	$ 3,048	3,005		$ 9,118	8,980
Percentage Change In Sales By Segment Of Business	1.40%			1.50%
Medical Devices | International
Sales by segment of business
Sales	$ 3,111	$ 3,089		$ 9,559	$ 9,730
Percentage Change In Sales By Segment Of Business	0.70%			(1.80%)