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Equity Investments and Other (Details)
$ in Millions
3 Months Ended 6 Months Ended
May. 02, 2015
USD ($)
Aug. 01, 2015
USD ($)
a
Aug. 02, 2014
USD ($)
Jan. 31, 2015
USD ($)
Schedule of Equity Method Investments [Line Items]        
Equity Method Investment, Realized Gain (Loss) on Disposal   $ 78 $ 0  
Easton Investment [Member]        
Schedule of Equity Method Investments [Line Items]        
Acres Of Land | a   1,300    
Easton Investment Carrying Value included in Other Assets   $ 94 100 $ 101
Easton Town Center Investment [Member]        
Schedule of Equity Method Investments [Line Items]        
Guarantor Obligations, Maximum Exposure, Undiscounted   63    
Third Party Sourcing Business [Member]        
Schedule of Equity Method Investments [Line Items]        
Equity Method Investment Carrying Value included in Other Assets     5 8
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      
Easton Gateway Investment [Domain]        
Schedule of Equity Method Investments [Line Items]        
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets   32 $ 35 $ 34
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount   42    
Guarantor Obligations, Maximum Exposure, Undiscounted   $ 10