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Stockholders' Equity - Additional Information (Detail) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 25, 2016
Jun. 26, 2016
Mar. 27, 2016
Dec. 31, 2015
Sep. 27, 2015
Jun. 28, 2015
Mar. 29, 2015
Dec. 31, 2014
Sep. 28, 2014
Jun. 29, 2014
Mar. 30, 2014
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Sep. 22, 2016
Shareholders Equity [Line Items]                                
Common stock, shares authorized 1,500,000,000       1,500,000,000               1,500,000,000 1,500,000,000    
Preferred stock, shares authorized 50,000,000       50,000,000               50,000,000 50,000,000    
Common stock, shares issued and outstanding 290,000,000       305,000,000               290,000,000 305,000,000    
Common stock, shares outstanding for Balance Sheet presentation purposes 289,000,000       303,000,000               289,000,000 303,000,000    
Preferred stock, shares issued and outstanding 0       0               0 0    
Cash paid for repurchases of common stock                         $ 2,096,000,000 $ 3,071,000,000 $ 1,900,000,000  
Number of shares of common stock repurchased with cash                         8,900,000 15,200,000 11,500,000  
Additional share repurchase program authorized amount                               $ 2,000,000,000
Remaining authorized repurchase amount under share repurchase program $ 3,500,000,000                       $ 3,500,000,000      
Common stock par value, per share $ 1       $ 1               $ 1 $ 1    
Additional paid-in capital $ 0       $ 0               $ 0 $ 0    
Reduction to stockholder's equity due to repurchases of common stock                         2,096,000,000 3,071,000,000 $ 1,900,000,000  
Dividends preferred stock cash                         $ 2,000,000,000 $ 1,900,000,000 $ 1,800,000,000  
Dividends, per share                         $ 6.77 $ 6.15 $ 5.49  
Quarterly increase dividend rate                         10.00% 10.00% 10.00%  
Common stock dividends per share declared $ 1.82 $ 1.65 $ 1.65 $ 1.65 $ 1.65 $ 1.50 $ 1.50 $ 1.50 $ 1.50 $ 1.33 $ 1.33 $ 1.33 $ 6.77 $ 6.15 $ 5.49  
Retained Earnings                                
Shareholders Equity [Line Items]                                
Reduction to stockholder's equity due to repurchases of common stock                         $ 1,692,000,000 $ 2,400,000,000 $ 1,096,000,000