Derivative Financial Instruments, Notional Amounts and Fair Values of Foreign Currency Forward Contracts Designated as Cash Flow Hedging Instruments (Details) - Cash Flow Hedging [Member] - Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	Jul. 02, 2017	Dec. 25, 2016	Jun. 26, 2016
Foreign Exchange Forward [Member]
Derivative [Line Items]
Notional amount of derivative	$ 1,870,058	$ 1,434,758	$ 1,779,982
Fair value of hedged item	5,943	71,928	49,096
Inventory Purchases [Member]
Derivative [Line Items]
Notional amount of derivative	942,896	945,728	1,301,560
Fair value of hedged item	259	60,520	54,698
Sales [Member]
Derivative [Line Items]
Notional amount of derivative	618,755	290,181	218,459
Fair value of hedged item	15,229	9,775	(2,792)
Royalties and Other [Member]
Derivative [Line Items]
Notional amount of derivative	308,407	198,849	259,963
Fair value of hedged item	$ (9,545)	$ 1,633	$ (2,810)