Segments of Business and Geographic Areas (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2016	Jun. 28, 2015	Jul. 03, 2016	Jun. 28, 2015
Sales by segment of business
Sales	$ 18,482	$ 17,787	$ 35,964	$ 35,161
Percentage Change In Sales By Segment Of Business	3.90%		2.30%
United States
Sales by segment of business
Sales	$ 9,572	8,911	$ 18,893	17,603
Percentage Change In Sales By Segment Of Business	7.40%		7.30%
International
Sales by segment of business
Sales	$ 8,910	8,876	$ 17,071	17,558
Percentage Change In Sales By Segment Of Business	0.40%		(2.80%)
Consumer
Sales by segment of business
Sales	$ 3,419	3,483	$ 6,614	6,873
Percentage Change In Sales By Segment Of Business	(1.80%)		(3.80%)
Consumer | United States
Sales by segment of business
Sales	$ 1,384	1,355	$ 2,742	2,714
Percentage Change In Sales By Segment Of Business	2.10%		1.00%
Consumer | International
Sales by segment of business
Sales	$ 2,035	2,128	$ 3,872	4,159
Percentage Change In Sales By Segment Of Business	(4.40%)		(6.90%)
Pharmaceutical
Sales by segment of business
Sales	$ 8,654	7,946	$ 16,832	15,672
Percentage Change In Sales By Segment Of Business	8.90%		7.40%
Pharmaceutical | United States
Sales by segment of business
Sales	$ 5,144	4,543	$ 10,081	8,914
Percentage Change In Sales By Segment Of Business	13.20%		13.10%
Pharmaceutical | International
Sales by segment of business
Sales	$ 3,510	3,403	$ 6,751	6,758
Percentage Change In Sales By Segment Of Business	3.10%		(0.10%)
Medical Devices
Sales by segment of business
Sales	$ 6,409	6,358	$ 12,518	12,616
Percentage Change In Sales By Segment Of Business	0.80%		(0.80%)
Medical Devices | United States
Sales by segment of business
Sales	$ 3,044	3,013	$ 6,070	5,975
Percentage Change In Sales By Segment Of Business	1.00%		1.60%
Medical Devices | International
Sales by segment of business
Sales	$ 3,365	$ 3,345	$ 6,448	$ 6,641
Percentage Change In Sales By Segment Of Business	0.60%		(2.90%)