Earnings Per Share And Shareholders' Equity (Shares Utilized for the Calculation of Basic and Diluted Earnings per Share) (Details) - shares shares in Millions		3 Months Ended		9 Months Ended
		Oct. 29, 2016	Oct. 31, 2015	Oct. 29, 2016	Oct. 31, 2015
Weighted-average Common Shares:
Issued Shares		315	313	314	312
Treasury Shares		(29)	(22)	(27)	(20)
Basic Shares		286	291	287	292
Effect of Dilutive Options and Restricted Stock		4	5	4	5
Diluted Shares		290	296	291	297
Anti-dilutive Options and Awards (a)	[1]	2	1	2	1

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