Segments of Business and Geographic Areas (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 02, 2011	Oct. 03, 2010	Oct. 02, 2011	Oct. 03, 2010
Sales by segment of business
Total	$ 16,005	$ 14,982	$ 48,775	$ 45,943
Percentage Change	6.80%		6.20%
Consumer [Member]
Sales by segment of business
Total	3,740	3,567	11,215	10,980
Percentage Change	4.90%		2.10%
Consumer [Member] | United States [Member]
Sales by segment of business
Total	1,219	1,277	3,903	4,300
Percentage Change	(4.50%)		(9.20%)
Consumer [Member] | International [Member]
Sales by segment of business
Total	2,521	2,290	7,312	6,680
Percentage Change	10.10%		9.50%
Pharmaceutical [Member]
Sales by segment of business
Total	5,982	5,495	18,274	16,686
Percentage Change	8.90%		9.50%
Pharmaceutical [Member] | United States [Member]
Sales by segment of business
Total	2,869	3,054	9,499	9,370
Percentage Change	(6.10%)		1.40%
Pharmaceutical [Member] | International [Member]
Sales by segment of business
Total	3,113	2,441	8,775	7,316
Percentage Change	27.50%		19.90%
Medical Devices and Diagnostics [Member]
Sales by segment of business
Total	6,283	5,920	19,286	18,277
Percentage Change	6.10%		5.50%
Medical Devices and Diagnostics [Member] | United States [Member]
Sales by segment of business
Total	2,780	2,800	8,521	8,551
Percentage Change	(0.70%)		(0.40%)
Medical Devices and Diagnostics [Member] | International [Member]
Sales by segment of business
Total	3,503	3,120	10,765	9,726
Percentage Change	12.30%		10.70%
United States [Member]
Sales by segment of business
Total	6,868	7,131	21,923	22,221
Percentage Change	(3.70%)		(1.30%)
International [Member]
Sales by segment of business
Total	$ 9,137	$ 7,851	$ 26,852	$ 23,722
Percentage Change	16.40%		13.20%