v2.4.0.8
Financing Receivables And Guarantees (Schedule Of Financing Receivables) (Detail) (USD $)
In Millions, unless otherwise specified
Oct. 26, 2013
Jul. 27, 2013
Oct. 27, 2012
Jul. 28, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Gross Financing Receivable before Unearned and Credit Loss Allowance $ 8,639 $ 8,565    
Unearned income (264) (273)    
Allowance for Credit Losses (350) (344) (374) (380)
Total, net 8,025 7,948    
Current 4,132 4,037    
Noncurrent 3,893 3,911    
Lease Receivables
       
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Gross Financing Receivable before Unearned and Credit Loss Allowance 3,813 3,780    
Unearned income (264) (273)    
Allowance for Credit Losses (237) (238)    
Total, net 3,312 3,269    
Current 1,463 1,418    
Noncurrent 1,849 1,851    
Loan Receivables
       
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Gross Financing Receivable before Unearned and Credit Loss Allowance 1,808 1,649    
Unearned income 0 0    
Allowance for Credit Losses (93) (86)    
Total, net 1,715 1,563    
Current 951 898    
Noncurrent 764 665    
Financed Service Contracts And Other
       
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Gross Financing Receivable before Unearned and Credit Loss Allowance 3,018 3,136    
Unearned income 0 0    
Allowance for Credit Losses (20) (20)    
Total, net 2,998 3,116    
Current 1,718 1,721    
Noncurrent $ 1,280 $ 1,395