Annual report pursuant to Section 13 and 15(d)

Goodwill and Other Intangible Assets - Goodwill (Details)

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Goodwill and Other Intangible Assets - Goodwill (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Goodwill    
Goodwill, beginning balance $ 2,443 $ 2,445
Acquisition 85 11
Other (1) (13)
Goodwill, ending balance 2,527 2,443
Corporate and other    
Goodwill    
Allocation to new segments 270  
Other 1  
Goodwill, ending balance 271  
Tripadvisor    
Goodwill    
Goodwill, beginning balance 2,443 2,445
Allocation to new segments (2,443)  
Acquisition   11
Other   (13)
Goodwill, ending balance   $ 2,443
Hotel, Media & Platform    
Goodwill    
Allocation to new segments 1,923  
Goodwill, ending balance 1,923  
Experiences & Dining    
Goodwill    
Allocation to new segments 250  
Acquisition 85  
Other (2)  
Goodwill, ending balance $ 333