Annual report pursuant to Section 13 and 15(d)

Intangible Assets (Changes In Carrying Amount Of Goodwill By Segment) (Details)

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Intangible Assets (Changes In Carrying Amount Of Goodwill By Segment) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Goodwill [Line Items]      
Goodwill, Impairment Loss $ 0 $ 0 $ 0
Goodwill [Roll Forward]      
Goodwill, Beginning Balance 961    
Goodwill, Acquired During Period 1    
Foreign Exchange (7)    
Goodwill, Ending Balance 955 961  
Travel and Membership      
Goodwill [Roll Forward]      
Goodwill, Beginning Balance 934    
Goodwill, Acquired During Period 1    
Foreign Exchange (7)    
Goodwill, Ending Balance 928 934  
Vacation Ownership      
Goodwill [Roll Forward]      
Goodwill, Beginning Balance 27    
Goodwill, Acquired During Period 0    
Foreign Exchange 0    
Goodwill, Ending Balance $ 27 $ 27