Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Summary of Net Revenues and Adjusted EBITDA by Segment) (Details)

v3.19.3
Segment Information (Summary of Net Revenues and Adjusted EBITDA by Segment) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Segment Reporting Information [Line Items]        
Document Fiscal Year Focus     2019  
Net Revenues $ 560 $ 604 $ 1,561 $ 1,341
Adjusted EBITDA 190 166 461 382
Reportable Segments        
Segment Reporting Information [Line Items]        
Net Revenues 559 600 1,557 1,337
Adjusted EBITDA 208 183 515 423
Reportable Segments | Hotel Franchising        
Segment Reporting Information [Line Items]        
Net Revenues 379 348 979 840
Adjusted EBITDA 195 178 470 394
Reportable Segments | Hotel Management        
Segment Reporting Information [Line Items]        
Net Revenues 180 252 578 497
Adjusted EBITDA 13 5 45 29
Corporate and Other        
Segment Reporting Information [Line Items]        
Net Revenues 1 4 4 4
Adjusted EBITDA $ (18) $ (17) $ (54) $ (41)