Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - TripAdvisor Awards (Details)

v3.25.0.1
Stock-Based Compensation - TripAdvisor Awards (Details) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Jun. 08, 2021
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Jun. 21, 2018
Additional disclosures          
Stock-based compensation   $ (121) $ (99) $ (93)  
Tripadvisor          
Additional disclosures          
Stock-based compensation   $ (120)      
Tripadvisor | 2018 Plan          
Stock-Based Compensation          
Number of shares available for grant   16,000,000     6,000,000
Number of additional shares available for grant 10,000,000        
Additional disclosures          
Weighted average period the unrecognized compensation cost will be recognized   2 years 6 months      
Unrecognized compensation cost, unvested RSUs, MSUs and PSUs   $ 245      
Tripadvisor | 2018 Plan | RSUs and MSUs          
Additional disclosures          
RSUs, MSUs and PSUs granted (in shares)   7,000,000      
RSUs, MSUs and PSUs vested (in shares)   5,000,000      
RSUs, MSUs and PSUs cancelled   2,000,000      
Weighted average grant date fair value, RSUs, MSUs and PSUs granted (in dollars per share)   $ 24.91      
Weighted average grant date fair value, RSUs, MSUs and PSUs vested (in dollars per share)   23.93      
Weighted average grant date fair value, RSUs, MSUs and PSUs cancelled (in dollars per share)   $ 23.04      
Unvested RSUs, MSUs and PSUs (in shares)   13,000,000      
Tripadvisor | 2011 and 2018 Plans          
Stock-Based Compensation          
Volatility rate (as a percent)   56.70% 53.40% 51.60%  
Expected term   5 years 2 months 12 days 5 years 2 months 12 days 5 years 4 months 24 days  
Tripadvisor | 2011 and 2018 Plans | Employee Stock Option          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]          
Outstanding beginning balance   3,927,000      
Granted   45,000      
Exercised   (80,000)      
Cancelled or expired   (1,702,000)      
Outstanding ending balance   2,190,000 3,927,000    
Options exercisable   1,703,000      
Vested and expected to vest   2,190,000      
WAEP          
Weighted average exercise price, options outstanding (in dollars per share)   $ 35.56      
Weighted average exercise price, options granted (in dollars per share)   24.96      
Weighted average exercise price, options exercised (in dollars per share)   24.36      
Weighted average exercise price, options cancelled or expired (in dollars per share)   40.93      
Weighted average exercise price, options outstanding (in dollars per share)   31.57 $ 35.56    
Weighted average exercise price, options exercisable (in dollars per share)   34.42      
Weighted average exercise price, vested and expected to vest (in dollars per share)   $ 31.57      
Weighted average remaining contractual term outstanding   5 years 3 months 18 days      
Weighted average remaining contractual term exercisable   4 years 8 months 12 days      
Weighted average remaining contractual life vested and expected to vest   5 years 3 months 18 days      
Additional disclosures          
Weighted average grant date fair value, options (in dollars per share)   $ 13.37      
Term of awards   10 years      
Vesting period   4 years