Derivative Financial Instruments, Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type (Details) (Foreign Exchange Forward [Member], USD $) In Thousands, unless otherwise specified	Mar. 29, 2015	Dec. 28, 2014	Mar. 30, 2014
Designated as Hedging Instrument [Member] | Prepaid expenses and other current assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	$ 74,219	$ 46,594	$ 999
Unrealized losses	(10,253)	(11,508)	(647)
Net unrealized gain (loss)	63,966	35,086	352
Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	66,438	34,234	0
Unrealized losses	(914)	(172)	0
Net unrealized gain (loss)	65,524	34,062	0
Designated as Hedging Instrument [Member] | Accrued liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	3,149	447	4,597
Unrealized losses	(6,662)	(725)	(13,946)
Net unrealized gain (loss)	(3,513)	(278)	(9,349)
Designated as Hedging Instrument [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	0	0	256
Unrealized losses	0	0	(2,420)
Net unrealized gain (loss)	0	0	(2,164)
Not Designated as Hedging Instrument [Member] | Prepaid expenses and other current assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	1,088	0	1,218
Unrealized losses	(28)	0	(421)
Net unrealized gain (loss)	1,060	0	797
Not Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	0	0	163
Unrealized losses	0	0	(1)
Net unrealized gain (loss)	0	0	162
Not Designated as Hedging Instrument [Member] | Accrued liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	0	1,733	0
Unrealized losses	0	(4,046)	0
Net unrealized gain (loss)	$ 0	$ (2,313)	$ 0