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Earnings Per Share - Additional Information (Detail)
In Millions, unless otherwise specified
3 Months Ended
Mar. 29, 2014
Mar. 30, 2013
Awards of options and nonvested shares
   
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]    
Shares excluded from computation of diluted earnings per share 12 8
Stock Options And Restricted Stocks
   
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]    
Shares excluded from computation of diluted earnings per share 9