Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans Summary of Stock Option Transactions for All Stock Option Plans (Details)

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Employee Benefit Plans Summary of Stock Option Transactions for All Stock Option Plans (Details) (Stock Options [Member], USD $)
 12 Months Ended
Sep. 25, 2011
Sep. 26, 2010
Sep. 27, 2009
Stock Options [Member]
      
Summary of Stock Option Transactions for All Stock Option Plans [Roll Forward]      
Options outstanding - Beginning balance 214,958    
Options granted 1,220    
Options assumed 4,603    
Options cancelled/forfeited/expired (4,250)    
Options exercised (67,279)    
Options outstanding - Ending balance 149,252 214,958  
Exercisable at September 25, 2011 101,472    
Summary of Stock Option Transactions for All Stock Option Plans [Abstract]      
Share-based compensation arrangement by share-based payment award, options, exercises in period, total intrinsic value $ 1,100,000,000 $ 208,000,000 $ 272,000,000
Outstanding at beginning of period, weighted average exercise price $ 38.51    
Options granted, weighted average exercise price $ 48.37    
Options assumed, weighted average exercise price $ 29.63    
Options cancelled/forfeited/ expired, weighted average exercise price $ 40.99    
Options exercised, weighted average exercise price $ 36.60    
Outstanding at end of period, weighted average exercise price $ 39.10 $ 38.51  
Exercisable, weighted average exercise price $ 38.39    
Options outstanding, average remaining contractual term (years) 5.65    
Exercisable, average remaining contractual term (years) 4.89    
Options outstanding, aggregate intrinsic value 1,700,000,000    
Exercisable, aggregate intrinsic value 1,200,000,000    
Employee Service Share-Based Compensation, Aggregate Disclosures [Abstract]      
Vesting period 5    
Stock option exercisable period after grant date 10    
Unrecognized compensation costs on nonvested awards 636,000,000    
Nonvested awards, total compensation cost not yet recognized, period for recognition (years) 2    
Cash received from exercise of stock options 2,500,000,000 565,000,000 534,000,000
Tax benefit realized from exercise of stock options $ 421,000,000 $ 80,000,000 $ 106,000,000