Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - TripAdvisor Awards (Details)

v3.21.2
Stock-Based Compensation - TripAdvisor Awards (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
3 Months Ended 6 Months Ended
May 27, 2020
May 26, 2020
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Additional disclosures            
Stock-based compensation     $ 33 $ 25 $ 63 $ 52
Restricted Stock Units (RSUs)            
Additional disclosures            
Vesting period 2 years 4 years        
2019 Plan            
Additional disclosures            
Weighted average period the unrecognized compensation cost will be recognized         2 years 4 months 24 days  
Tripadvisor            
Additional disclosures            
Stock-based compensation $ 5   32 $ 25 $ 61 51
Tripadvisor | 2018 Plan | RSUs and MSUs            
Additional disclosures            
Weighted average period the unrecognized compensation cost will be recognized         2 years 4 months 24 days  
RSUs and MSUs granted (in shares)         2,000  
RSUs and MSUs vested (in shares)         3,000  
Weighted average grant date fair value, RSUs and MSUs granted (in dollars per share)         $ 45.77  
Weighted average grant date fair value, RSUs and MSUs vested (in dollars per share)         33.15  
Weighted average grant date fair value, RSUs and MSUs cancelled (in dollars per share)         $ 34.90  
Unrecognized compensation cost, unvested RSUs and MSUs     $ 181   $ 181  
Tripadvisor | 2011 and 2018 Plans | Stock Options            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]            
Outstanding beginning balance         5,615  
Granted         716  
Exercised         (672)  
Cancelled or expired         (152)  
Outstanding ending balance     5,507   5,507  
Options exercisable     3,341   3,341  
WAEP            
Weighted average exercise price, options outstanding (in dollars per share)         $ 46.31  
Weighted average exercise price, options granted (in dollars per share)         46.00  
Weighted average exercise price, options exercised (in dollars per share)         34.40  
Weighted average exercise price, options cancelled or expired (in dollars per share)         42.57  
Weighted average exercise price, options outstanding (in dollars per share)     $ 47.83   47.83  
Weighted average exercise price, options exercisable (in dollars per share)     $ 54.65   $ 54.65  
Weighted average remaining contractual term outstanding         5 years 4 months 24 days  
Weighted average remaining contractual term exercisable         3 years 7 months 6 days  
Outstanding, aggregate intrinsic value     $ 19   $ 19  
Exercisable, aggregate intrinsic value     6   $ 6  
Additional disclosures            
Weighted average grant date fair value, options (in dollars per share)         $ 20.39  
Stock options exercised intrinsic value         $ 8 $ 8
Unrecognized compensation cost, unvested options (in dollars)     $ 24   $ 24  
Weighted average period the unrecognized compensation cost will be recognized         2 years 6 months