Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition (Disaggregation of Net Revenues) (Details)

v3.20.2
Revenue Recognition (Disaggregation of Net Revenues) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Disaggregation of Revenue [Line Items]        
Net Revenues $ 337 $ 560 $ 1,004 $ 1,561
Concessions of hotel-management fees for past services   20   20
Royalties and franchise fees        
Disaggregation of Revenue [Line Items]        
Net Revenues 96 140 250 368
Marketing, reservation and loyalty        
Disaggregation of Revenue [Line Items]        
Net Revenues 99 167 288 421
License and other fees        
Disaggregation of Revenue [Line Items]        
Net Revenues     63 97
Cost reimbursements        
Disaggregation of Revenue [Line Items]        
Net Revenues 82 161 274 476
Other        
Disaggregation of Revenue [Line Items]        
Net Revenues 27 45 79 111
Reportable Segments        
Disaggregation of Revenue [Line Items]        
Net Revenues 337 559 1,004 1,557
Reportable Segments | Hotel Franchising        
Disaggregation of Revenue [Line Items]        
Net Revenues 236 379 661 979
Reportable Segments | Hotel Franchising | Royalties and franchise fees        
Disaggregation of Revenue [Line Items]        
Net Revenues 91 136 234 359
Reportable Segments | Hotel Franchising | Marketing, reservation and loyalty        
Disaggregation of Revenue [Line Items]        
Net Revenues 99 166 287 418
Reportable Segments | Hotel Franchising | License and other fees        
Disaggregation of Revenue [Line Items]        
Net Revenues 21 35 63 97
Reportable Segments | Hotel Franchising | Other        
Disaggregation of Revenue [Line Items]        
Net Revenues 25 42 77 105
Reportable Segments | Hotel Management        
Disaggregation of Revenue [Line Items]        
Net Revenues 101 180 343 578
Reportable Segments | Hotel Management | Royalties and franchise fees        
Disaggregation of Revenue [Line Items]        
Net Revenues 5 4 16 9
Reportable Segments | Hotel Management | Marketing, reservation and loyalty        
Disaggregation of Revenue [Line Items]        
Net Revenues 0 1 1 3
Reportable Segments | Hotel Management | Owned hotel revenues        
Disaggregation of Revenue [Line Items]        
Net Revenues 5 18 29 67
Reportable Segments | Hotel Management | Management fees (a)        
Disaggregation of Revenue [Line Items]        
Net Revenues 7 (6) 21 21
Reportable Segments | Hotel Management | Cost reimbursements        
Disaggregation of Revenue [Line Items]        
Net Revenues 82 161 274 476
Reportable Segments | Hotel Management | Other        
Disaggregation of Revenue [Line Items]        
Net Revenues 2 2 2 2
Corporate and Other        
Disaggregation of Revenue [Line Items]        
Net Revenues $ 0 $ 1 $ 0 $ 4