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Financial Instruments - Effects of Derivative Instruments Designated as Cash Flow Hedges Included in Accumulated OCI on Consolidated Balance Sheets (Detail) (Treasury Locks [Member], Interest Expense [Member], USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Sep. 28, 2013
Sep. 29, 2012
Treasury Locks [Member] | Interest Expense [Member]
       
Investment Holdings [Line Items]        
Effective Portion of Gain / (Loss) Recognized in Accumulated OCI            
Effective Portion of Gain Reclassified from Accumulated OCI into Income $ 0.1 $ 0.1 $ 0.3 $ 0.3