Stock-based and Deferred Compensation Plans (Area Operations Directors, Managing, Operating and Chef Partner Programs) (Details) - Restaurant Managing and Chef Partners [Member] - USD ($) $ in Millions	Dec. 29, 2019	Dec. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred compensation liability, current and noncurrent	$ 49.0	$ 69.6
Deferred compensations plans, unfunded obligations	$ 9.1	$ 26.3