Segments of Business and Geographic Areas (Details 5) (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 geographic area
Total	$ 17,877	$ 16,475	$ 35,382	$ 32,614
Percentage Change In Sales By Geographic Area	8.50%		8.50%
UNITED STATES
Sales by geographic area
Total	7,946	7,360	15,971	14,579
Percentage Change In Sales By Geographic Area	8.00%		9.50%
Europe [Member]
Sales by geographic area
Total	4,672	4,165	9,153	8,359
Percentage Change In Sales By Geographic Area	12.20%		9.50%
Western Hemisphere, excluding U.S. [Member]
Sales by geographic area
Total	1,905	1,728	3,688	3,442
Percentage Change In Sales By Geographic Area	10.20%		7.10%
Asia-Pacific, Africa [Member]
Sales by geographic area
Total	$ 3,354	$ 3,222	$ 6,570	$ 6,234
Percentage Change In Sales By Geographic Area	4.10%		5.40%