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Derivative Financial Instruments - Narrative (Details)
3 Months Ended
Apr. 30, 2016
USD ($)
swap
May. 02, 2015
USD ($)
swap
Jan. 30, 2016
USD ($)
Derivative Contracts - Effect on Results of Operations (millions)      
Amount of ineffectiveness recognized $ 0 $ 0  
Amount remaining on unamortized hedged debt valuation gains 11,000,000 29,000,000 $ 15,000,000
Interest Rate Swaps      
Derivative Contracts - Effect on Results of Operations (millions)      
Notional amount $ 1,250,000,000 $ 1,250,000,000  
Designated as Hedging Instrument      
Derivative Contracts - Effect on Results of Operations (millions)      
Number of interest rate swaps | swap 3 3