Segment Reporting (Revenue by Segment - Table) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 29, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 30, 2018	Sep. 30, 2018	Jul. 01, 2018	Apr. 01, 2018	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Segment Reporting, Revenue Reconciling Item [Line Items]
Restaurant sales, franchise and other revenues	$ 1,022,184	$ 967,144	$ 1,021,930	$ 1,128,131	$ 1,013,113	$ 965,021	$ 1,031,814	$ 1,116,465	$ 4,139,389	$ 4,126,413	$ 4,223,136
U.S. segment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Restaurant sales, franchise and other revenues									3,687,918	3,687,239	3,760,867
International segment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Restaurant sales, franchise and other revenues									$ 451,471	$ 439,174	$ 462,269