Earnings Per Share And Shareholders' Equity (Shares Utilized for the Calculation of Basic and Diluted Earnings per Share) (Details) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jul. 28, 2012		Jul. 30, 2011		Jul. 28, 2012		Jul. 30, 2011
Weighted-average Common Shares:
Issued Shares	302		334		300		332
Treasury Shares	(12)		(29)		(9)		(21)
Basic Shares	290		305		291		311
Effect of Dilutive Options and Restricted Stock	6		10		8		10
Diluted Shares	296		315		299		321
Anti-dilutive Options and Awards	1	[1]	1	[1]	1	[1]	1	[1]

[1] These options and awards were excluded from the calculation of diluted earnings per share because their inclusion would have been anti-dilutive.