Segments of Business and Geographic Areas (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 02, 2011	Oct. 03, 2010	Oct. 02, 2011	Oct. 03, 2010
Operating profit by segment of business
Segments operating profit	$ 4,649	$ 4,361	$ 12,913	$ 15,196
Percent Change	6.60%		(15.00%)
Expense not allocated to segments	(538)	(142)	(870)	(477)
Worldwide income before taxes	4,111	4,219	12,043	14,719
Worldwide total, percent total	(2.60%)		(18.20%)
Consumer [Member]
Operating profit by segment of business
Segments operating profit	644	501	1,766	1,955
Percent Change	28.50%		(9.70%)
Pharmaceutical [Member]
Operating profit by segment of business
Segments operating profit	2,078	1,858	6,001	5,661
Percent Change	11.80%		6.00%
Medical Devices and Diagnostics [Member]
Operating profit by segment of business
Segments operating profit	$ 1,927	$ 2,002	$ 5,146	$ 7,580
Percent Change	(3.70%)		(32.10%)