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 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Segment Reporting Information [Line Items]        
Net Revenues $ 406 $ 258 $ 709 $ 667
Adjusted EBITDA 168 66 265 175
Reportable Segments        
Segment Reporting Information [Line Items]        
Net Revenues 406 258 709 667
Adjusted EBITDA 182 82 293 209
Reportable Segments | Hotel Franchising        
Segment Reporting Information [Line Items]        
Net Revenues 283 182 492 425
Adjusted EBITDA 166 86 271 196
Reportable Segments | Hotel Management        
Segment Reporting Information [Line Items]        
Net Revenues 123 76 217 242
Adjusted EBITDA 16 (4) 22 13
Corporate, Non-Segment        
Segment Reporting Information [Line Items]        
Net Revenues 0 0 0 0
Adjusted EBITDA $ (14) $ (16) $ (28) $ (34)