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Share Repurchase Activity (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended
May 03, 2014
May 04, 2013
Disclosure Share Repurchase Activity [Abstract]    
Number of shares repurchased 5.6 1.7
Total cost $ 219 $ 58
Average per share cost including commissions (in dollars per share) $ 39.25 $ 34.27