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		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Foreign Exchange Contract | Designated as Hedging Instrument
Contracts qualifying for hedge accounting:
Gains recognized in accumulated other comprehensive loss	$ 1.0	$ 18.3	$ 7.4	$ 48.1
(Gains) losses reclassified from accumulated other comprehensive loss	(8.3)	(0.3)	(27.1)	5.6
Comprehensive income (loss)	$ (7.3)	$ 18.0	$ (19.7)	$ 53.7