Derivative Financial Instruments, Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type (Details) - Foreign Exchange Forward [Member] - USD ($) $ in Thousands	Jun. 28, 2015	Dec. 28, 2014	Jun. 29, 2014
Designated as Hedging Instrument [Member] | Prepaid expenses and other current assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	$ 63,740	$ 46,594	$ 422
Unrealized losses	(12,302)	(11,508)	(248)
Net unrealized gain (loss)	51,438	35,086	174
Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	54,664	34,234	315
Unrealized losses	(732)	(172)	(22)
Net unrealized gain (loss)	53,932	34,062	293
Designated as Hedging Instrument [Member] | Accrued liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	4,349	447	2,563
Unrealized losses	(7,026)	(725)	(16,475)
Net unrealized gain (loss)	(2,677)	(278)	(13,912)
Designated as Hedging Instrument [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	0	0	1,118
Unrealized losses	(71)	0	(2,735)
Net unrealized gain (loss)	(71)	0	(1,617)
Not Designated as Hedging Instrument [Member] | Prepaid expenses and other current assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	563	0	0
Unrealized losses	(27)	0	0
Net unrealized gain (loss)	536	0	0
Not Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	0	0	66
Unrealized losses	0	0	0
Net unrealized gain (loss)	0	0	66
Not Designated as Hedging Instrument [Member] | Accrued liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	0	1,733	663
Unrealized losses	0	(4,046)	(1,265)
Net unrealized gain (loss)	$ 0	$ (2,313)	$ (602)