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Dispositions - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Oct. 28, 2017
Oct. 28, 2017
Oct. 29, 2016
Property, Plant and Equipment [Line Items]      
Proceeds from sales of assets   $ 1 $ 47
Gain (Loss) on Sale of Properties   $ 1  
Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Proceeds from sales of assets $ 1    
Gain (Loss) on Sale of Properties $ 1