Closure and Impairment Charges - Narrative (Details) - IHOP - restaurant	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Goodwill [Line Items]
Number of restaurants related to prior period closure charge revisions	35	30	35	50
Entity Operated Units
Goodwill [Line Items]
Number of restaurants subject to asset impairment	2		2
Franchised Units
Goodwill [Line Items]
Number of restaurants subject to asset impairment				4