Effect of Derivative Instruments not Designated as Hedging Instruments on Consolidated Statements of Operations (Detail) (Foreign Currency Forward And Option Contracts, USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 29, 2013		Mar. 30, 2012
Foreign Currency Forward And Option Contracts
Derivatives, Fair Value [Line Items]
(Loss) Gain Recognized in Other Income Expense, net	$ (7.7)	[1]	$ 1.4	[1]

[1] The gains or losses from changes in the fair value of the derivative contracts are generally offset by gains or losses of the underlying transactions being hedged.