Segments of Business and Geographic Areas (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jul. 01, 2012	Jun. 30, 2013	Jul. 01, 2012
Sales by segment of business
Total	$ 17,877	$ 16,475	$ 35,382	$ 32,614
Percentage Change In Sales By Segment Of Business	8.50%		8.50%
United States [Member]
Sales by segment of business
Total	7,946	7,360	15,971	14,579
Percentage Change In Sales By Segment Of Business	8.00%		9.50%
International [Member]
Sales by segment of business
Total	9,931	9,115	19,411	18,035
Percentage Change In Sales By Segment Of Business	9.00%		7.60%
Consumer [Member]
Sales by segment of business
Total	3,658	3,619	7,333	7,214
Percentage Change In Sales By Segment Of Business	1.10%		1.60%
Consumer [Member] | United States [Member]
Sales by segment of business
Total	1,326	1,313	2,674	2,629
Percentage Change In Sales By Segment Of Business	1.00%		1.70%
Consumer [Member] | International [Member]
Sales by segment of business
Total	2,332	2,306	4,659	4,585
Percentage Change In Sales By Segment Of Business	1.10%		1.60%
Pharmaceutical [Member]
Sales by segment of business
Total	7,025	6,291	13,793	12,424
Percentage Change In Sales By Segment Of Business	11.70%		11.00%
Pharmaceutical [Member] | United States [Member]
Sales by segment of business
Total	3,377	3,094	6,848	6,120
Percentage Change In Sales By Segment Of Business	9.10%		11.90%
Pharmaceutical [Member] | International [Member]
Sales by segment of business
Total	3,648	3,197	6,945	6,304
Percentage Change In Sales By Segment Of Business	14.10%		10.20%
Medical Devices and Diagnostics [Member]
Sales by segment of business
Total	7,194	6,565	14,256	12,976
Percentage Change In Sales By Segment Of Business	9.60%		9.90%
Medical Devices and Diagnostics [Member] | United States [Member]
Sales by segment of business
Total	3,243	2,953	6,449	5,830
Percentage Change In Sales By Segment Of Business	9.80%		10.60%
Medical Devices and Diagnostics [Member] | International [Member]
Sales by segment of business
Total	$ 3,951	$ 3,612	$ 7,807	$ 7,146
Percentage Change In Sales By Segment Of Business	9.40%		9.20%