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Financial Services (Details Textual) (USD $)
3 Months Ended 6 Months Ended
Aug. 03, 2012
Jul. 29, 2011
Aug. 03, 2012
Jul. 29, 2011
Feb. 03, 2012
Accounts, Notes, Loans and Financing Receivable          
Repayment of revolving loan transactions     12 months    
Receivables under special programs $ 275,000,000   $ 275,000,000   $ 328,000,000
Future maturities of minimum lease payments, in Fiscal Year 2013 641,000,000   641,000,000    
Future maturities of minimum lease payments, in Fiscal Year 2014 904,000,000   904,000,000    
Future maturities of minimum lease payments, in Fiscal Year 2015 515,000,000   515,000,000    
Future maturities of minimum lease payments, in Fiscal Year 2016 138,000,000   138,000,000    
Future maturities of minimal lease payment, in Fiscal 2017 and beyond 16,000,000   16,000,000    
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance 348,000,000   348,000,000    
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net 131,000,000   131,000,000    
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion Period 2 years   2 years    
Customer receivables funded via securitization through SPEs 379,000,000 600,000,000 915,000,000 1,100,000,000  
General terms of securitization programs     12 months    
Financing Receivable, Significant Sales 227,000,000 45,000,000 298,000,000 45,000,000  
Structured financing debt related to fixed term leases, loans and revolving loans 1,400,000,000   1,400,000,000   1,300,000,000
Total debt capacity related to the loan securitization programs     $ 1,500,000,000    
Minimum
         
Accounts, Notes, Loans and Financing Receivable          
Duration of special programs     6 months    
Duration Of Leases With Business Customers     2 years    
Range of Fixed Term Loan     3 years    
Duration of debt     12 months    
Maximum
         
Accounts, Notes, Loans and Financing Receivable          
Duration of special programs     12 months    
Duration Of Leases With Business Customers     4 years    
Range of Fixed Term Loan     4 years    
Duration of debt     36 months