Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.2
Segment Information (Summary of Net Revenues and Adjusted EBITDA by Segment) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Segment Reporting Information [Line Items]        
Net Revenues $ 463 $ 337 $ 1,173 $ 1,004
Adjusted EBITDA 194 103 459 278
Reportable Segments        
Segment Reporting Information [Line Items]        
Net Revenues 463 337 1,173 1,004
Adjusted EBITDA 209 121 502 329
Reportable Segments | Hotel Franchising        
Segment Reporting Information [Line Items]        
Net Revenues 337 236 829 661
Adjusted EBITDA 193 119 464 315
Reportable Segments | Hotel Management        
Segment Reporting Information [Line Items]        
Net Revenues 126 101 344 343
Adjusted EBITDA 16 2 38 14
Corporate, Non-Segment        
Segment Reporting Information [Line Items]        
Net Revenues 0 0 0 0
Adjusted EBITDA $ (15) $ (18) $ (43) $ (51)