v2.4.0.6
Employee Stock and Benefit Plans (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Sep. 30, 2012
Oct. 02, 2011
Oct. 03, 2010
Common stock available for issuance pursuant to future equity-based compensation awards 24.6    
Shares available for issuance under ESPP 8.1    
Deferred Stock Plan [Member]
      
Minimum deferral period for deferred stock plan (years) 5 years    
Shares deferred under deferred stock plan 3.4    
Defined Contribution Plans [Member]
      
Matching contributions $ 59.8 $ 45.5 $ 23.5
Stock Options [Member]
      
Award expiration period (years) 10 years    
Total unrecognized stock-based compensation expense, net of estimated forfeitures 35    
Weighted average recognition period for total unrecognized stock-based compensation expense (in years) 2 years 4 months    
Total intrinsic value of stock options exercised 440 323 118
Total fair value of options vested 59 126 108
Restricted Stock Units (RSUs) [Member]
      
Total unrecognized stock-based compensation expense, net of estimated forfeitures $ 80    
Weighted average recognition period for total unrecognized stock-based compensation expense (in years) 2 years    
Employee Stock Purchase Plan ESPP [Member]
      
Maximum permitted contribution to Deferred Stock Plan, percent 10.00%    
Discounted stock purchase price, percent of market value 95.00%    
Number of shares issued under plan 0.4    
Non Employee Director [Member] | Stock Options [Member] | Minimum [Member]
      
Award vesting period for non-employee directors (years) 1 year    
Non Employee Director [Member] | Stock Options [Member] | Maximum [Member]
      
Award vesting period for non-employee directors (years) 3 years