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Store Closures (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Oct. 28, 2017
Oct. 29, 2016
Oct. 28, 2017
Oct. 29, 2016
Jan. 28, 2017
Restructuring Cost and Reserve [Line Items]          
Restructuring Reserve $ 91   $ 91   $ 106
Impairments, store closing and other costs 0 $ (6) 0 $ 186  
Payments for Restructuring (10)        
Restructuring Reserve, Accrual Adjustment     (5)    
Contract Termination [Member]          
Restructuring Cost and Reserve [Line Items]          
Restructuring Reserve 90   90   103
Payments for Restructuring (8)        
Restructuring Reserve, Accrual Adjustment     (5)    
Employee Severance [Member]          
Restructuring Cost and Reserve [Line Items]          
Restructuring Reserve 1   1   $ 3
Payments for Restructuring $ (2)        
Restructuring Reserve, Accrual Adjustment     $ 0