Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation Share-Based Compensation Expense (Details)

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Basis of Presentation Share-Based Compensation Expense (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Dec. 30, 2012
Dec. 25, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation expense before income taxes $ 282 $ 247
Related income tax benefit (62) (53)
Share-based compensation expense, net of income taxes 220 194
Share-based compensation expense related to share-based awards granted during period 29 33
Net share-based awards granted, after forfeitures and cancellations, as a percentage of outstanding shares as of the beginning of each fiscal period 0.40% 0.50%
Total share-based awards granted as a percentage of outstanding shares as of the end of each fiscal period 0.40% 0.50%
Cost of equipment and services revenues [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation expense before income taxes 20 20
Research and development [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation expense before income taxes 157 126
Selling, general and administrative [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation expense before income taxes 105 101
Stock Options [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unrecognized compensation expense related to nonvested awards 206  
Weighted average period over which unrecognized compensation expense related to nonvested awards is expected to be recognized 1 year 1 month 6 days  
Restricted Stock Units [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unrecognized compensation expense related to nonvested awards $ 1,400  
Weighted average period over which unrecognized compensation expense related to nonvested awards is expected to be recognized 1 year 10 months 24 days