v2.4.0.8
Stockholders' Equity - Additional Information (Detail) (USD $)
1 Months Ended 3 Months Ended
Oct. 31, 2013
Dec. 31, 2013
Jan. 30, 2014
Stockholders' Equity Note [Line Items]      
Stock Repurchase Remaining Authorized Amount   $ 4,200,000,000  
Stock Repurchase Program, Authorized Amount 5,000,000,000    
Dividends Payable, Amount Per Share (in USD per Share)     $ 0.40
Dividends, Cash   $ 254,000,000  
Subsequent Event
     
Stockholders' Equity Note [Line Items]      
Dividends Payable, Amount Per Share (in USD per Share)     $ 0.4