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Summary of Significant Accounting Policies Corporate Structure (Details)
Dec. 30, 2018
countries
number_of_restaurants
Franchisor Disclosure  
Number of Restaurants 6,711
Entity Operated Units  
Franchisor Disclosure  
Number of Restaurants 353
Franchised Units  
Franchisor Disclosure  
Number of Restaurants 6,358
Other International | Franchised Units  
Franchisor Disclosure  
Number of Countries Entity Operates | countries 30