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Cover - USD ($)
$ in Billions
 12 Months Ended
Dec. 31, 2023
Feb. 22, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-15283    
Entity Registrant Name Dine Brands Global, Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 95-3038279    
Entity Address, Address Line One 10 West Walnut Street    
Entity Address, Address Line Two 5th Floor    
Entity Address, City or Town Pasadena    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 91103    
City Area Code 818    
Local Phone Number 240-6055    
Title of 12(b) Security Common Stock, $0.01 par value    
Trading Symbol DIN    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Smaller Company false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Document Financial Statement Error Correction false    
Entity Public Float     $ 0.9
Entity Common Stock, Shares Outstanding   15,252,945  
Documents Incorporated by Reference
Portions of the Proxy Statement for the Annual Meeting of Stockholders to be held on Tuesday, May 14, 2024 are incorporated by reference into Part III of this Annual Report on Form 10-K where indicated. Except as expressly incorporated by reference, the registrant’s Proxy Statement shall not be deemed to be part of this report.
    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Central Index Key 0000049754