Summary of Significant Accounting Policies Corporate Structure (Details)	Dec. 29, 2019 countries number_of_restaurants
Franchisor Disclosure
Number of Restaurants	6,788
Entity Operated Units
Franchisor Disclosure
Number of Restaurants	357
Franchised Units
Franchisor Disclosure
Number of Restaurants	6,431
International
Franchisor Disclosure
Number of Countries Entity Operates | countries	30
International | Entity Operated Units
Franchisor Disclosure
Number of Restaurants	0