Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.1
Segment Information (Summary of Net Revenues and Adjusted EBITDA by Segment) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Segment Reporting Information [Line Items]    
Net Revenues $ 410 $ 468
Adjusted EBITDA 107 111
Reportable Segments    
Segment Reporting Information [Line Items]    
Net Revenues 410 466
Adjusted EBITDA 125 129
Reportable Segments | Hotel Franchising    
Segment Reporting Information [Line Items]    
Net Revenues 243 269
Adjusted EBITDA 108 113
Reportable Segments | Hotel Management    
Segment Reporting Information [Line Items]    
Net Revenues 167 197
Adjusted EBITDA 17 16
Corporate and Other    
Segment Reporting Information [Line Items]    
Net Revenues 0 2
Adjusted EBITDA $ (18) $ (18)