Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - TripCo Incentive Plans (Details)

v3.19.1
Stock-Based Compensation - TripCo Incentive Plans (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]    
Stock-based compensation $ 30 $ 30
Operating expense    
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]    
Stock-based compensation 12 12
Selling, general and administrative    
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]    
Stock-based compensation 18 18
TripAdvisor    
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]    
Stock-based compensation $ 27 $ 29