Segment Reporting, International Segment Net Revenues (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Oct. 01, 2017	Jul. 02, 2017	Apr. 02, 2017	Dec. 25, 2016	Sep. 25, 2016	Jun. 26, 2016	Mar. 27, 2016	Dec. 31, 2017	Dec. 25, 2016	Dec. 27, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	$ 1,596,111	$ 1,791,502	$ 972,506	$ 849,663	$ 1,629,940	$ 1,679,757	$ 878,945	$ 831,180	$ 5,209,782	$ 5,019,822	$ 4,447,509
Reportable Geographical Components [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									2,233,579	2,194,651	1,971,875
Europe [Member] | Reportable Geographical Components [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									1,381,949	1,404,478	1,236,846
Asia Pacific [Member] | Reportable Geographical Components [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									366,542	326,535	308,920
Latin America [Member] | Reportable Geographical Components [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									$ 485,088	$ 463,638	$ 426,109