Annual report pursuant to Section 13 and 15(d)

Segment Information (Summary of Certain Financial Information) (Details)

v3.25.0.1
Segment Information (Summary of Certain Financial Information) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Segment Reporting Information [Line Items]      
Depreciation and amortization $ 71 $ 76 $ 77
Segment assets $ 4,223 $ 4,033 4,123
Capital expenditures     39
Corporate Segment and Other Operating Segment      
Segment Reporting Information [Line Items]      
Depreciation and amortization     9
Capital expenditures     6
Other Operating Segment      
Segment Reporting Information [Line Items]      
Segment assets     299
Reportable Segments | Hotel Franchising      
Segment Reporting Information [Line Items]      
Depreciation and amortization     63
Segment assets     3,711
Capital expenditures     33
Reportable Segments | Hotel Management      
Segment Reporting Information [Line Items]      
Depreciation and amortization     5
Segment assets     113
Capital expenditures     $ 0