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Segment Information - Selected Financial Information By Reportable Segment and Reconcilliations Of Operating Income (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Oct. 27, 2012
Oct. 29, 2011
Oct. 27, 2012
Oct. 29, 2011
Segment Reporting Information [Line Items]        
Operating income $ 520 $ 346 $ 1,340 $ 1,066
Stores Reportable Segment
       
Segment Reporting Information [Line Items]        
Operating income 403 255 1,043 836
Direct Reportable Segment
       
Segment Reporting Information [Line Items]        
Operating income $ 117 $ 91 $ 297 $ 230