Schedule of Derivatives Designated as Hedging Instruments (Detail) (Designated as Hedging Instrument, USD $) In Millions, unless otherwise specified	6 Months Ended							12 Months Ended			6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014 Foreign Currency Contracts Revenue	Jun. 30, 2013 Foreign Currency Contracts Revenue	Jun. 29, 2014 Foreign Currency Contracts Expenses	Jun. 30, 2013 Foreign Currency Contracts Expenses	Jun. 29, 2014 Cash Flow Hedging	Dec. 29, 2013 Cash Flow Hedging	Dec. 29, 2013 Cash Flow Hedging Derivatives For Forecasted Revenues Current Assets	Jun. 29, 2014 Cash Flow Hedging Derivatives For Forecasted Revenues Current Assets	Jun. 29, 2014 Cash Flow Hedging Derivatives For Forecasted Revenues Current Liabilities	Dec. 29, 2013 Cash Flow Hedging Derivatives For Forecasted Revenues Current Liabilities	Jun. 29, 2014 Cash Flow Hedging Derivatives For Forecasted Expenses Current Assets	Dec. 29, 2013 Cash Flow Hedging Derivatives For Forecasted Expenses Current Assets	Jun. 29, 2014 Cash Flow Hedging Derivatives For Forecasted Expenses Current Liabilities	Dec. 29, 2013 Cash Flow Hedging Derivatives For Forecasted Expenses Current Liabilities
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount							$ 192.5	$ 231.1	$ 6.3	$ 31.1	$ 12.5	$ 44.5	$ 112.2	$ 136.1	$ 36.7	$ 44.2
Fair Value							0.6	4.3	0.3		(0.1)	(1.1)	0.9	5.9	(0.2)	(0.8)
Amount of Gain (Loss) Recognized In AOCI							0.6	4.3	0.3		(0.1)	(1.1)	0.9	5.9	(0.2)	(0.8)
Amount of Gain (Loss) Recognized In Income	5.0	2.0	(0.9)	0.3	5.9	1.7
Amount of Gain (Loss) Reclassified from AOCI	$ 5.0	$ 2.0	$ (0.9)	$ 0.3	$ 5.9	$ 1.7