v2.4.0.6
Summary of Share-Based Compensation Expense (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Sep. 29, 2012
Sep. 24, 2011
Sep. 25, 2010
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share-based compensation expense $ 1,740 $ 1,168 $ 879
Cost of Sales
     
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share-based compensation expense 265 200 151
Research and Development
     
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share-based compensation expense 668 450 323
Selling, General and Administrative
     
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share-based compensation expense $ 807 $ 518 $ 405