Earnings Per Share (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 28, 2012	Sep. 28, 2012	Jun. 29, 2012	Mar. 30, 2012	Dec. 30, 2011	Sep. 30, 2011	Jul. 01, 2011	Apr. 01, 2011	Dec. 28, 2012		Dec. 30, 2011		Dec. 31, 2010
Numerator:
Net Earnings	$ 443	$ 455	$ 512	$ 449	$ 457	$ 464	$ 506	$ 395	$ 1,859		$ 1,822		$ 1,563
Dividend Equivalents on Restricted Stock									1		1		0
Net Earnings, Attributable to Common Shareholders									1,860		1,823		1,563
Denominator:
Average Common Shares Outstanding									1,038,000,000		1,083,000,000		1,143,000,000
Other Potentially Dilutive Common Shares									2,000,000	[1]	6,000,000	[1]	11,000,000	[1]
Average Common Shares Outstanding, Assuming Dilution									1,040,000,000		1,089,000,000		1,154,000,000
Net Earnings (in dollars per share)	$ 0.43	$ 0.44	$ 0.49	$ 0.43	$ 0.44	$ 0.43	$ 0.46	$ 0.36	$ 1.79		$ 1.68		$ 1.37
Net Earnings (in dollars per share)	$ 0.43	$ 0.44	$ 0.49	$ 0.43	$ 0.43	$ 0.43	$ 0.46	$ 0.35	$ 1.79		$ 1.67		$ 1.35
Number of stock options excluded from the diluted earnings per share									0
Convertible Debt [Member]
Denominator:
Face value of convertible debentures									2		6
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 convetible debentures									155,000		675,000
Number of shares of common stock converted from outstanding convetible 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.