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Fair Value Measurements (Range Of Input Assumptions) (Details) - Recurring fair value measurement [Member] - Level 3 [Member]
12 Months Ended
Jan. 30, 2016
Minimum [Member]  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Discount rate 12.00%
Monthly payment rate 6.00%
Annual credit loss rate 2.00%
Annual revenues as a percent to credit card receivables 10.00%
Annual expenses as a percent to credit card receivables 4.00%
Maximum [Member]  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Discount rate 12.00%
Monthly payment rate 18.00%
Annual credit loss rate 4.00%
Annual revenues as a percent to credit card receivables 18.00%
Annual expenses as a percent to credit card receivables 9.00%