Segments of Business and Geographic Areas (Details 2) (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 geographic area
Total	$ 16,005	$ 14,982	$ 48,775	$ 45,943
Percent Change	6.80%		6.20%
United States [Member]
Sales by geographic area
Total	6,868	7,131	21,923	22,221
Percent Change	(3.70%)		(1.30%)
Europe [Member]
Sales by geographic area
Total	4,124	3,629	12,850	11,563
Percent Change	13.60%		11.10%
Western Hemisphere, excluding U.S. [Member]
Sales by geographic area
Total	1,751	1,424	4,730	4,079
Percent Change	23.00%		16.00%
Asia-Pacific, Africa [Member]
Sales by geographic area
Total	$ 3,262	$ 2,798	$ 9,272	$ 8,080
Percent Change	16.60%		14.80%