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Property and Equipment (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 6 Months Ended
Aug. 02, 2014
Aug. 03, 2013
Aug. 02, 2014
Aug. 03, 2013
Property, Plant and Equipment [Line Items]        
Tangible asset impairment charges $ 64 [1] $ 15 [1] $ 77 [1] $ 25 [1]
Business segments
        
Property, Plant and Equipment [Line Items]        
Tangible asset impairment charges 48 [1] 15 [1] 61 [1] 25 [1]
Business segments | US Segment
        
Property, Plant and Equipment [Line Items]        
Tangible asset impairment charges 46 [1] 15 [1] 59 [1] 25 [1]
Business segments | Canadian Segment
        
Property, Plant and Equipment [Line Items]        
Tangible asset impairment charges 2 [1] 0 [1] 2 [1] 0 [1]
Segment reconciling items
        
Property, Plant and Equipment [Line Items]        
Tangible asset impairment charges $ 16 [1],[2] $ 0 [1],[2] $ 16 [1],[2] $ 0 [1],[2]
[1] Substantially all of the impairments are recorded in selling, general and administrative expense on the Consolidated Statements of Income.
[2] Represents impairments of undeveloped land.