Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition (Disaggregation of Net Revenues) (Details)

v3.23.1
Revenue Recognition (Disaggregation of Net Revenues) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Disaggregation of Revenue [Line Items]    
Net Revenues $ 313 $ 371
Royalties and franchise fees    
Disaggregation of Revenue [Line Items]    
Net Revenues 121 110
Marketing, reservation and loyalty    
Disaggregation of Revenue [Line Items]    
Net Revenues 120 111
Cost reimbursements    
Disaggregation of Revenue [Line Items]    
Net Revenues 5 55
Other    
Disaggregation of Revenue [Line Items]    
Net Revenues 41 41
Reportable Segments    
Disaggregation of Revenue [Line Items]    
Net Revenues   371
Reportable Segments | Hotel Franchising (a)    
Disaggregation of Revenue [Line Items]    
Net Revenues 313 272
Reportable Segments | Hotel Franchising (a) | Royalties and franchise fees    
Disaggregation of Revenue [Line Items]    
Net Revenues 121 103
Reportable Segments | Hotel Franchising (a) | Marketing, reservation and loyalty    
Disaggregation of Revenue [Line Items]    
Net Revenues 120 111
Reportable Segments | Hotel Franchising (a) | License and other fees    
Disaggregation of Revenue [Line Items]    
Net Revenues 23 19
Reportable Segments | Hotel Franchising (a) | Management fees    
Disaggregation of Revenue [Line Items]    
Net Revenues 3 0
Reportable Segments | Hotel Franchising (a) | Cost reimbursements    
Disaggregation of Revenue [Line Items]    
Net Revenues 5 0
Reportable Segments | Hotel Franchising (a) | Other    
Disaggregation of Revenue [Line Items]    
Net Revenues $ 41 39
Reportable Segments | Hotel Management    
Disaggregation of Revenue [Line Items]    
Net Revenues   99
Reportable Segments | Hotel Management | Royalties and franchise fees    
Disaggregation of Revenue [Line Items]    
Net Revenues   7
Reportable Segments | Hotel Management | Owned hotel revenues    
Disaggregation of Revenue [Line Items]    
Net Revenues   30
Reportable Segments | Hotel Management | Management fees    
Disaggregation of Revenue [Line Items]    
Net Revenues   5
Reportable Segments | Hotel Management | Cost reimbursements    
Disaggregation of Revenue [Line Items]    
Net Revenues   55
Reportable Segments | Hotel Management | Other    
Disaggregation of Revenue [Line Items]    
Net Revenues   $ 2