Segments of Business and Geographic Areas (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013
Sales by segment of business
Total	$ 18,467	$ 17,575	$ 56,077	$ 52,957
Percentage Change In Sales By Segment Of Business	5.10%		5.90%
United States
Sales by segment of business
Total	8,842	7,925	26,178	23,896
Percentage Change In Sales By Segment Of Business	11.60%		9.50%
International
Sales by segment of business
Total	9,625	9,650	29,899	29,061
Percentage Change In Sales By Segment Of Business	(0.30%)		2.90%
Consumer
Sales by segment of business
Total	3,589	3,611	10,890	10,944
Percentage Change In Sales By Segment Of Business	(0.60%)		(0.50%)
Consumer | United States
Sales by segment of business
Total	1,173	1,225	3,802	3,899
Percentage Change In Sales By Segment Of Business	(4.20%)		(2.50%)
Consumer | International
Sales by segment of business
Total	2,416	2,386	7,088	7,045
Percentage Change In Sales By Segment Of Business	1.30%		0.60%
Pharmaceutical
Sales by segment of business
Total	8,307	7,036	24,314	20,829
Percentage Change In Sales By Segment Of Business	18.10%		16.70%
Pharmaceutical | United States
Sales by segment of business
Total	4,723	3,549	13,076	10,397
Percentage Change In Sales By Segment Of Business	33.10%		25.80%
Pharmaceutical | International
Sales by segment of business
Total	3,584	3,487	11,238	10,432
Percentage Change In Sales By Segment Of Business	2.80%		7.70%
Medical Devices and Diagnostics
Sales by segment of business
Total	6,571	6,928	20,873	21,184
Percentage Change In Sales By Segment Of Business	(5.20%)		(1.50%)
Medical Devices and Diagnostics | United States
Sales by segment of business
Total	2,946	3,151	9,300	9,600
Percentage Change In Sales By Segment Of Business	(6.50%)		(3.10%)
Medical Devices and Diagnostics | International
Sales by segment of business
Total	$ 3,625	$ 3,777	$ 11,573	$ 11,584
Percentage Change In Sales By Segment Of Business	(4.00%)		(0.10%)