Derivative Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 25, 2016
Fair Value Hedging [Member] | Not Designated as Hedging Instrument [Member] | Intercompany Loans
Derivative [Line Items]
Hedge description of hedged item	intercompany loans
Total notional amount	$ 418,471	$ 268,308
Underlying risk	foreign currency
Fair value of hedged item	$ (2,891)	4,657
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Total notional amount	1,376,877	1,434,758
Fair value of hedged item	$ (7,934)	71,928
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Inventory Purchases
Derivative [Line Items]
Hedge description of hedged item	Inventory purchases
Total notional amount	$ 756,673	945,728
Underlying risk	foreign currency
Fair value of hedged item	$ (13,695)	60,520
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Sales
Derivative [Line Items]
Hedge description of hedged item	Sales
Total notional amount	$ 423,315	290,181
Underlying risk	foreign currency
Fair value of hedged item	$ 16,144	9,775
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Other
Derivative [Line Items]
Hedge description of hedged item	Royalties and Other
Total notional amount	$ 196,889	198,849
Underlying risk	foreign currency
Fair value of hedged item	$ (10,383)	$ 1,633