Pretax Amounts Related to Foreign Currency Derivative Contracts that were Recognized in and Reclassified from Accumulated Other Comprehensive Income (Loss) (Detail) (Foreign Exchange Contract, Designated as Hedging Instrument, USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Foreign Exchange Contract | Designated as Hedging Instrument
Contracts qualifying for hedge accounting:
Gains (losses) recognized in accumulated other comprehensive loss	$ 7.3	$ (11.8)	$ 10.5	$ 6.4
Gains reclassified from accumulated other comprehensive loss	(3.5)	(10.6)	(4.5)	(18.8)
Comprehensive income (loss)	$ 3.8	$ (22.4)	$ 6.0	$ (12.4)