Guarantees and Other Commitments and Contingencies Franchisee Image Activation Programs (Details)	12 Months Ended
	Jan. 03, 2021
Maximum | New Build Incentive Program
Other commitments
Years of reduction in royalty payment attributable to new builds	2 years
Maximum | 2021 New Build Incentive Program
Other commitments
Years of reduction in royalty payment attributable to new builds	2 years
Maximum | Remodel Incentive Program
Other commitments
Years of early franchise agreement renewal attributable to incentive program	25
Years of reduction in royalty payment attributable to incentive program	1 year
Minimum | Remodel Incentive Program
Other commitments
Years of early franchise agreement renewal attributable to incentive program	20