Annual report pursuant to Section 13 and 15(d)

Intangible Assets (Change in Goodwill) (Details)

v3.24.0.1
Intangible Assets (Change in Goodwill) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Goodwill [Roll Forward]    
Goodwill, Beginning $ 1,525 $ 1,525
Goodwill, Other Increase (Decrease) 0 0
Goodwill, Ending 1,525 1,525
Hotel Franchising    
Goodwill [Roll Forward]    
Goodwill, Beginning   1,441
Goodwill, Other Increase (Decrease) 0 0
Goodwill, Ending 1,441  
Hotel Management    
Goodwill [Roll Forward]    
Goodwill, Beginning   84
Goodwill, Other Increase (Decrease) 0 $ 0
Goodwill, Ending $ 84