Annual report pursuant to Section 13 and 15(d)

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

v3.10.0.1
Segment Information (Summary of Net Revenues and Adjusted EBITDA by Segment) (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Segment Reporting Information [Line Items]                      
Net Revenues $ 527 $ 604 $ 435 $ 302 $ 312 $ 347 $ 331 $ 289 $ 1,868 $ 1,280 $ 1,269
Adjusted EBITDA 125 166 125 92 76 124 105 78 507 383 388
Payments to Acquire Property, Plant, and Equipment                 73 46 42
Depreciation and amortization 29 30 22 19 19 19 19 18 99 75 73
Total assets 4,976       2,137       4,976 2,137 1,998
Hotel Franchising                      
Segment Reporting Information [Line Items]                      
Net Revenues 295 348 289 203 215 258 233 191      
Adjusted EBITDA 122 178 129 86 81 132 111 78      
Corporate and Other                      
Segment Reporting Information [Line Items]                      
Net Revenues 3 4 0 0 0 0 0 0 7 0 0
Adjusted EBITDA (15) (17) (12) (10) (11) (9) (10) (9) (55) (40) (38)
Payments to Acquire Property, Plant, and Equipment                 3 0 0
Depreciation and amortization                 6 0 0
Total assets 567       10       567 10 7
Hotel Management                      
Segment Reporting Information [Line Items]                      
Net Revenues 229 252 146 99 97 89 98 98      
Adjusted EBITDA 18 $ 5 $ 8 $ 16 6 $ 1 $ 4 $ 9      
Reportable Segments | Hotel Franchising                      
Segment Reporting Information [Line Items]                      
Net Revenues                 1,135 897 881
Adjusted EBITDA                 515 402 400
Payments to Acquire Property, Plant, and Equipment                 43 35 30
Depreciation and amortization                 72 59 58
Total assets 3,829       1,727       3,829 1,727 1,564
Reportable Segments | Hotel Management                      
Segment Reporting Information [Line Items]                      
Net Revenues                 726 383 388
Adjusted EBITDA                 47 21 26
Payments to Acquire Property, Plant, and Equipment                 27 11 12
Depreciation and amortization                 21 16 15
Total assets $ 580       $ 400       580 400 427
Corporate and Other                      
Segment Reporting Information [Line Items]                      
Net Revenues                 $ 7 $ 0 $ 0