Summary of Significant Accounting Policies Corporate Structure (Details)	Jan. 03, 2016 countries Restaurant
Franchisor Disclosure [Line Items]
Number of Restaurants	6,479
Entity Operated Units [Member]
Franchisor Disclosure [Line Items]
Number of Restaurants	632
Franchised Units [Member]
Franchisor Disclosure [Line Items]
Number of Restaurants	5,847
Other International | Franchised Units [Member]
Franchisor Disclosure [Line Items]
Number of Countries Entity Operates | countries	27