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. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Foreign Exchange Contract | Designated as Hedging Instrument
Contracts qualifying for hedge accounting:
Gains (losses) recognized in accumulated other comprehensive loss	$ (11.8)	$ (9.7)	$ 6.4	$ 29.8
(Gains) losses reclassified from accumulated other comprehensive loss	(10.6)	5.0	(18.8)	5.9
Comprehensive income (loss)	$ (22.4)	$ (4.7)	$ (12.4)	$ 35.7