Annual report pursuant to Section 13 and 15(d)

Capital Stock Share Repurchase Program (Details)

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Capital Stock Share Repurchase Program (Details) - USD ($)
$ in Millions
 1 Months Ended 3 Months Ended 12 Months Ended
Nov. 04, 2015
Sep. 27, 2015
Jun. 28, 2015
Sep. 27, 2015
Sep. 28, 2014
Sep. 29, 2013
Mar. 09, 2015
Share Repurchase Program [Line Items]              
Stock Repurchase Program, Authorized Amount             $ 15,000
Repurchases and retirements of common stock, Value       $ 11,246 $ 4,549 $ 4,610  
Treasury Stock Acquired, Repurchase Authorization       To reflect share repurchases in the consolidated balance sheet, the Company (i) reduces common stock for the par value of the shares, (ii) reduces paid-in capital for the amount in excess of par to zero during the quarter in which the shares are repurchased and (iii) records the residual amount to retained earnings      
Stock Repurchase Program, Remaining Authorized Repurchase Amount   $ 6,900   $ 6,900      
Accelerated Share Repurchase Program [Member]              
Share Repurchase Program [Line Items]              
Upfront Payment Under Accelerated Stock Repurchase Program     $ 5,000        
Repurchases and retirements of common stock, Shares   20,539,000 57,737,000 78,276,000      
Repurchases and retirements of common stock, Value     $ 4,000        
Unsettled Forward Contract Indexed to Issuer's Stock, classified within Stockholder's Equity     $ 1,000        
Open Market Repurchases [Member]              
Share Repurchase Program [Line Items]              
Repurchases and retirements of common stock, Shares       94,159,000 60,253,000 71,696,000  
Repurchases and retirements of common stock, Value       $ 6,200 $ 4,500 $ 4,600  
Subsequent Event [Member]              
Share Repurchase Program [Line Items]              
Repurchases and retirements of common stock, Shares 24,561,000            
Repurchases and retirements of common stock, Value $ 1,400