Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity Dividends (Details)

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Stockholders' Equity Dividends (Details) - USD ($)
$ / shares in Units, $ in Millions
2 Months Ended 3 Months Ended 6 Months Ended
Apr. 08, 2016
Jun. 01, 2016
Jun. 22, 2016
Mar. 27, 2016
Dec. 27, 2015
Mar. 29, 2015
Dec. 28, 2014
Mar. 27, 2016
Mar. 29, 2015
Mar. 08, 2016
Dividends [Line Items]                    
Payments for repurchases of common stock, before commissions               $ 3,600 $ 3,600  
Percentage increase in quarterly common stock cash dividend per share announced                   10.00%
Dividends per share announced       $ 0.48 $ 0.48 $ 0.42 $ 0.42 $ 0.96 $ 0.84  
Amount of Increased quarterly common stock cash dividends per share announced                   $ 0.53
Dividends charged to retained earnings       $ 726 $ 730 $ 702 $ 710 $ 1,456 $ 1,412  
Subsequent Event [Member]                    
Dividends [Line Items]                    
Dividends per share announced $ 0.53                  
Dividends Payable, Date declared Apr. 08, 2016                  
Dividends Payable, Date to be paid     Jun. 22, 2016              
Dividends Payable, Date of record   Jun. 01, 2016