Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - TripAdvisor Awards (Details)

v3.20.2
Stock-Based Compensation - TripAdvisor Awards (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
3 Months Ended 9 Months Ended
Jul. 15, 2020
May 27, 2020
Sep. 30, 2020
Sep. 30, 2020
Sep. 30, 2019
Restricted Stock Units (RSUs)          
Additional disclosures          
Vesting period 2 years 4 years      
Accelerated vesting additional share based compensation expense     $ 6 $ 11  
Tripadvisor | 2018 Plan | RSUs and MSUs          
Additional disclosures          
Weighted average period the unrecognized compensation cost will be recognized       1 year 10 months 24 days  
RSUs and MSUs granted (in shares)       6,000  
RSUs and MSUs vested (in shares)       3,000  
RSUs and MSUs cancelled       4,000  
Weighted average grant date fair value, RSUs and MSUs granted (in dollars per share)       $ 24.56  
Weighted average grant date fair value, RSUs and MSUs vested (in dollars per share)       46.45  
Weighted average grant date fair value, RSUs and MSUs cancelled (in dollars per share)       $ 37.83  
Unrecognized compensation cost, unvested RSUs and MSUs     $ 193 $ 193  
Tripadvisor | 2011 and 2018 Plans | Stock Options          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]          
Outstanding beginning balance       6,017  
Granted       1,091  
Exercised       (2)  
Cancelled or expired       (1,220)  
Outstanding ending balance     5,886 5,886  
Options exercisable     3,360 3,360  
WAEP          
Weighted average exercise price, options outstanding (in dollars per share)       $ 50.27  
Weighted average exercise price, options granted (in dollars per share)       25.29  
Weighted average exercise price, options exercised (in dollars per share)       17.22  
Weighted average exercise price, options cancelled or expired (in dollars per share)       46.10  
Weighted average exercise price, options outstanding (in dollars per share)     $ 46.52 46.52  
Weighted average exercise price, options exercisable (in dollars per share)     $ 55.74 $ 55.74  
Weighted average remaining contractual term outstanding       5 years 6 months  
Weighted average remaining contractual term exercisable       3 years 6 months  
Additional disclosures          
Weighted average grant date fair value, options (in dollars per share)       $ 10.08  
Unrecognized compensation cost, unvested options (in dollars)     $ 22 $ 22  
Weighted average period the unrecognized compensation cost will be recognized       1 year 10 months 24 days  
Stock options exercised intrinsic value       $ 2 $ 2