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Fair Value Measurements (Details 2) (USD $)
12 Months Ended
Feb. 01, 2014
Feb. 01, 2014
Carrying amount
Feb. 02, 2013
Carrying amount
Feb. 01, 2014
Estimate of fair value
Feb. 02, 2013
Estimate of fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]          
Effect of one percentage point change in forecasted credit EBIT yield on estimated fair value $ 20,000,000        
Effect of one percentage point change in forecasted discount rate on estimated fair value 4,000,000        
Debt instrument, fair value disclosure   11,758,000,000 15,618,000,000 13,184,000,000 18,143,000,000
Estimated fair value consumer credit card portfolio $ 6,300,000,000