Derivative Financial Instruments, Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type (Details) - USD ($) $ in Thousands	Dec. 30, 2018	Dec. 31, 2017
Designated as Hedging Instrument [Member] | Prepaid Expenses and Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	$ 21,718	$ 13,666
Unrealized losses	(972)	(10,319)
Net unrealized gain (loss)	20,746	3,347
Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	6,173	11,255
Unrealized losses	(843)	(2,376)
Net unrealized gain (loss)	5,330	8,879
Designated as Hedging Instrument [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	0	4,546
Unrealized losses	0	(13,437)
Net unrealized gain (loss)	0	(8,891)
Designated as Hedging Instrument [Member] | Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	77	4,215
Unrealized losses	(136)	(15,484)
Net unrealized gain (loss)	(59)	(11,269)
Not Designated as Hedging Instrument [Member] | Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	1,269	1,793
Unrealized losses	(2,820)	(4,684)
Net unrealized gain (loss)	(1,551)	(2,891)
Foreign Exchange Forward [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Net unrealized gain (loss)	$ (1,551)	$ (2,891)