Summary of Significant Accounting Policies Corporate Structure (Details)	Jan. 03, 2021 countries number_of_restaurants
Franchisor Disclosure
Number of Restaurants	6,828
Entity Operated Units
Franchisor Disclosure
Number of Restaurants	361
Franchised Units
Franchisor Disclosure
Number of Restaurants	6,467
International
Franchisor Disclosure
Number of Countries Entity Operates | countries	30
International | Entity Operated Units
Franchisor Disclosure
Number of Restaurants	0