Annual report pursuant to Section 13 and 15(d)

Document and Entity Information Document and Entity Information

v3.10.0.1
Document and Entity Information Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2018
Jan. 31, 2019
Jun. 30, 2018
Document And Entity Information [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2018    
Document Fiscal Year Focus 2018    
Document Fiscal Period Focus FY    
Entity Current Reporting Status Yes    
Entity Registrant Name WYNDHAM HOTELS & RESORTS, INC.    
Entity Central Index Key 0001722684    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Entity Common Stock, Shares Outstanding   97,888,796  
Entity Public Float     $ 5,789,872,286
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Voluntary Filers No    
Entity Well Known Seasoned Issuer No