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) (Employee Stock Option [Member], USD $)
 12 Months Ended
Sep. 28, 2014
Sep. 29, 2013
Sep. 30, 2012
Employee Stock Option [Member]
      
Summary of Stock Option Transactions for All Stock Option Plans [Roll Forward]      
Options outstanding - Beginning balance 71,026,000    
Stock options assumed 152,000    
Options canceled/forfeited/expired (220,000)    
Options exercised (28,845,000)    
Options outstanding - Ending balance 42,113,000 71,026,000  
Options exercisable at end of period 41,701,000    
Summary of Stock Option Transactions for All Stock Option Plans [Abstract]      
Options outstanding at beginning of period, weighted average exercise price $ 41.17    
Stock options assumed, weighted average exercise price $ 4.73    
Options canceled/forfeited/ expired, weighted average exercise price $ 42.03    
Options exercised, weighted average exercise price $ 40.87    
Options outstanding at end of period, weighted average exercise price $ 41.23 $ 41.17  
Options exercisable at end of period, weighted average exercise price $ 41.27    
Options outstanding at end of period, average remaining contractual term (years) 3 years 6 months    
Options exercisable at end of period, average remaining contractual term (years) 3 years 6 months    
Options outstanding at end of period, aggregate intrinsic value $ 1,400,000,000    
Options exercisable at end of period, aggregate intrinsic value 1,400,000,000    
Employee Service Share-Based Compensation, Aggregate Disclosures [Abstract]      
Maximum Vesting period 5 years 0 months 0 days    
Stock option exercisable period after grant date 10 years    
Unrecognized compensation expense related to nonvested awards 12,000,000    
Weighted average period over which unrecognized compensation expense related to nonvested awards is expected to be recognized 1 year 8 months 13 days    
Cash received from exercise of stock options 1,200,000,000 1,300,000,000 1,500,000,000
Total intrinsic value of stock options exercised 971,000,000 949,000,000 1,000,000,000
Tax benefits related to exercise of share-based awards $ 690,000,000 $ 659,000,000 $ 438,000,000