Derivative Instruments (Foreign Exchange Contracts - Cash Flow Hedging Disclosure) (Details) (USD $)
 3 Months Ended 3 Months Ended
May 04, 2013
Jan. 31, 2007
May 04, 2013
Other Comprehensive Income (Loss) [Member]
Apr. 28, 2012
Other Comprehensive Income (Loss) [Member]
May 04, 2013
Other Income (Loss) [Member]
Apr. 28, 2012
Other Income (Loss) [Member]
Canadian dollar denominated intercompany loans related to cross-currency swaps   $ 470,000,000        
Unrealized Gain (Loss) on Foreign Currency Derivatives, Net, before Tax     1,000,000 (3,000,000)    
(Gain) Loss Reclassified from Accumulated Other Comprehensive Income (Loss) into Other Income (Loss)         (6,000,000) [1] 12,000,000 [1]
Gain (Loss) on Foreign Currency Cash Flow Hedge Ineffectiveness $ 0          
[1] Represents reclassification of amounts from accumulated other comprehensive income to earnings to completely offset foreign currency transaction gains and losses recognized on the intercompany loans. No ineffectiveness was associated with these foreign exchange cash flow hedges.