Annual report pursuant to Section 13 and 15(d)

Acquisitions and Dispositions (Details)

v3.19.3.a.u2
Acquisitions and Dispositions (Details)
$ in Millions
12 Months Ended
Dec. 31, 2019
USD ($)
item
Dec. 31, 2018
USD ($)
item
Dec. 31, 2017
USD ($)
Acquisitions      
Goodwill $ 2,527 $ 2,443 $ 2,445
Tripadvisor      
Acquisitions      
Goodwill not expected to be tax deductible $ 50    
Tripadvisor | 2019 Acquisitions      
Tripadvisor, Inc. transactions      
Number of businesses acquired | item 3    
Cash consideration for acquisition $ 108    
Cash Acquired from Acquisition $ 2    
Business Acquisition, Percentage of Voting Interests Acquired 100.00%    
Acquisitions      
Goodwill $ 85    
Intangible assets 26    
Net tangible assets (liabilities) (1)    
Total purchase price consideration $ 110    
Definite-lived intangible assets weighted-average life 6 years    
Tripadvisor | 2019 Acquisitions | Trademarks      
Acquisitions      
Intangible assets $ 2    
Tripadvisor | 2019 Acquisitions | Customer Lists and Relationships      
Acquisitions      
Intangible assets 10    
Tripadvisor | 2019 Acquisitions | Subscriber Relationships      
Acquisitions      
Intangible assets 6    
Tripadvisor | 2019 Acquisitions | Technology-Based Intangible Assets      
Acquisitions      
Intangible assets $ 8    
Tripadvisor | 2018 Acquisitions      
Tripadvisor, Inc. transactions      
Number of businesses acquired | item   1  
Cash consideration for acquisition   $ 23  
Acquisitions      
Goodwill   11  
Intangible assets   14  
Deferred tax liabilities, net   (2)  
Total purchase price consideration   $ 23  
Definite-lived intangible assets weighted-average life   8 years  
Tripadvisor | 2018 Acquisitions | Customer Lists and Relationships      
Acquisitions      
Intangible assets   $ 6  
Tripadvisor | 2018 Acquisitions | Technology-Based Intangible Assets      
Acquisitions      
Intangible assets   $ 8