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Earnings Per Share (Tables)
9 Months Ended
Oct. 31, 2015
Earnings Per Share [Abstract]  
Weighted-Average Number of Shares
Weighted-average number of shares used for earnings per share is as follows:
 
13 Weeks Ended
 
39 Weeks Ended
(shares in millions)
October 31,
2015
 
November 1,
2014
 
October 31,
2015
 
November 1,
2014
Weighted-average number of shares - basic
406

 
432

 
415

 
439

Common stock equivalents
2

 
5

 
2

 
5

Weighted-average number of shares - diluted
408

 
437

 
417

 
444