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Equity Investments and Other (Details)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 30, 2016
USD ($)
a
May 02, 2015
USD ($)
Jul. 30, 2016
USD ($)
a
Aug. 01, 2015
USD ($)
Jan. 30, 2016
USD ($)
Schedule of Equity Method Investments [Line Items]          
Equity Method Investment, Realized Gain (Loss) on Disposal     $ 0 $ 78  
Gain (Loss) on Equity Method Investment Dividends Or Distributions $ 108   $ 108 0  
Gain (Loss) on Equity Method Investment Dividends or Distributions, Net of Tax 70        
Proceeds from Equity Method Investments, Return of Capital and Other $ 124        
Easton Investment [Member]          
Schedule of Equity Method Investments [Line Items]          
Acres Of Land | a 1,300   1,300    
Easton Investment Carrying Value included in Other Assets $ 80   $ 80 $ 94 $ 86
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