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Equity Investments and Other (Details)
$ in Millions
3 Months Ended
Apr. 30, 2016
USD ($)
a
May. 02, 2015
USD ($)
Jan. 30, 2016
USD ($)
Schedule of Equity Method Investments [Line Items]      
Equity Method Investment, Realized Gain (Loss) on Disposal $ 0 $ 78  
Easton Investment [Member]      
Schedule of Equity Method Investments [Line Items]      
Acres Of Land | a 1,300    
Easton Investment Carrying Value included in Other Assets $ 82 98 $ 86
Easton Town Center Investment [Member]      
Schedule of Equity Method Investments [Line Items]      
Guarantor Obligations, Maximum Exposure, Undiscounted $ 78    
Third Party Sourcing Business [Member]      
Schedule of Equity Method Investments [Line Items]      
Equity Method Investment, Net Sales Proceeds   85  
Equity Method Investment, Realized Gain (Loss) on Disposal   78  
Equity Method Investment, Realized Gain (Loss) on Disposal   $ 69