Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.2
Segment Information (Summary of Net Revenues and Adjusted EBITDA by Segment) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Segment Reporting Information [Line Items]        
Net Revenues $ 258 $ 533 $ 667 $ 1,001
Adjusted EBITDA 63 159 170 270
Reportable Segments        
Segment Reporting Information [Line Items]        
Net Revenues 258 532 667 998
Adjusted EBITDA 79 178 204 306
Reportable Segments | Hotel Franchising        
Segment Reporting Information [Line Items]        
Net Revenues 182 331 425 600
Adjusted EBITDA 83 162 191 275
Reportable Segments | Hotel Management        
Segment Reporting Information [Line Items]        
Net Revenues 76 201 242 398
Adjusted EBITDA (4) 16 13 31
Corporate and Other        
Segment Reporting Information [Line Items]        
Net Revenues 0 1 0 3
Adjusted EBITDA $ (16) $ (19) $ (34) $ (36)