Summary of Significant Accounting Policies Corporate Structure (Details)	Dec. 30, 2012 Restaurants countries
Franchised Units [Member]
Summary of Significant Accounting Policies [Abstract]
Number of Foreign Countries Entity Operates	26
Franchisor Disclosure [Line Items]
Number of Foreign Countries Entity Operates (Including Canada)	27
Number of Restaurants	5,133
Entity Operated Units [Member]
Franchisor Disclosure [Line Items]
Number of Restaurants	1,427