Quarterly report pursuant to Section 13 or 15(d)

Common Stock Repurchases (Detail)

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Common Stock Repurchases (Detail) - USD ($)
shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Jun. 27, 2015
Jun. 28, 2014
Jun. 27, 2015
Jun. 28, 2014
Common Stock Repurchase Program [Member]        
Common Stock Repurchases [Line Items]        
Stock Repurchase Program, Authorized Amount $ 65,000   $ 65,000  
Stock Repurchase Program, Remaining Authorized Repurchase Amount $ 10,900   $ 10,900  
Stock Repurchased During Period, Shares 23.6   44.9  
Stock Repurchased During Period, Value $ 750   $ 1,500  
Stock Repurchased and Retired During Period, Shares   75.8   97.9
Stock Repurchased and Retired During Period, Value   $ 2,200   $ 2,700
Accumulated Stock Repurchased During Program, Total Shares 4,700.0   4,700.0  
Accumulated Stock Repurchased During Program, Total Value $ 103,000   $ 103,000  
Restricted Stock Unit Withholdings [Member]        
Common Stock Repurchases [Line Items]        
Stock Repurchased and Retired During Period, Shares     12.2 11.3
Stock Repurchased and Retired During Period, Value     $ 399 $ 299