Earnings Per Share (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 28, 2013		Jun. 29, 2012		Jun. 28, 2013		Jun. 29, 2012
Numerator:
Net Earnings	$ 535		$ 512		$ 994		$ 961
Denominator:
Average Common Shares Outstanding (in shares)	1,022,000,000		1,041,000,000		1,022,000,000		1,044,000,000
Other Potentially Dilutive Common Shares (in shares)	1,000,000	[1]	2,000,000	[1]	1,000,000	[1]	2,000,000	[1]
Average Common Shares Outstanding, Assuming Dilution (in shares)	1,023,000,000		1,043,000,000		1,023,000,000		1,046,000,000
Net Earnings Per Share, Basic (in dollars per share):	$ 0.52		$ 0.49		$ 0.97		$ 0.92
Net Earnings Per Share, Assuming Dilution (in dollars per share):	$ 0.52		$ 0.49		$ 0.97		$ 0.92
Number of stock options excluded from the diluted earnings per share					0
Convertible Debt [Member]
Denominator:
Face value of convertible debentures still outstanding at the end of the period	$ 2				$ 2
Common Stock [Member]
Denominator:
Number of shares of common stock converted from outstanding convertible debentures					245,000

[1] Other potentially dilutive common shares include convertible debt, stock options, common stock equivalents and performance units granted under a long-term management incentive compensation plan.