Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation - TripCo Outstanding Awards (Details)

v3.10.0.1
Stock Based Compensation - TripCo Outstanding Awards (Details) - USD ($)
$ / shares in Units, $ in Millions
 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Stock-Based Compensation    
Dividend rate 0.00%  
Liberty Incentive Plans | Series A    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Options outstanding 681,000  
Granted 0  
Exercised (2,000)  
Cancelled or expired (149,000)  
Options outstanding 530,000  
Options exercisable 421,000  
WAEP    
Weighted average exercise price, options outstanding (in dollars per share) $ 14.68  
Weighted average exercise price, options exercised (in dollars per share) 9.70  
Weighted average exercise price, options forfeited/cancelled (in dollars per share) 14.12  
Weighted average exercise price, options outstanding (in dollars per share) 14.86  
Weighted average exercise price, options exercisable (in dollars per share) $ 16.16  
Weighted average remaining contractual term outstanding 2 years 9 months 18 days  
Weighted average remaining contractual term exercisable 1 year 10 months 24 days  
Outstanding, aggregate intrinsic value $ 1  
Exercisable, aggregate intrinsic value $ 1  
Liberty Incentive Plans | Series B    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Options outstanding increase (decrease) 0  
2014 Plan    
Additional disclosures    
Unvested value not yet recognized $ 7  
Weighted average period the unrecognized compensation cost will be recognized 1 year 7 months 6 days  
Common Stock, Capital Shares Reserved for Future Issuance 2,300,000  
Stock Options | 2011 Plan | Trip Advisor    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Options outstanding 6,853,000  
Granted 621,000  
Exercised (532,000)  
Cancelled or expired (190,000)  
Options outstanding 6,752,000  
Options exercisable 3,265,000  
WAEP    
Weighted average exercise price, options outstanding (in dollars per share) $ 52.78  
Weighted average exercise price, options granted (in dollars per share) 41.61  
Weighted average exercise price, options exercised (in dollars per share) 35.72  
Weighted average exercise price, options forfeited/cancelled (in dollars per share) 51.34  
Weighted average exercise price, options outstanding (in dollars per share) 53.13  
Weighted average exercise price, options exercisable (in dollars per share) $ 55.96  
Weighted average remaining contractual term outstanding 6 years 6 months  
Weighted average remaining contractual term exercisable 4 years 8 months 12 days  
Outstanding, aggregate intrinsic value $ 65  
Exercisable, aggregate intrinsic value $ 28  
Additional disclosures    
Weighted average period the unrecognized compensation cost will be recognized 3 years  
Unrecognized compensation cost, unvested options (in dollars) $ 46  
Weighted average grant date fair value, options (in dollars per share) $ 17.62  
Stock options exercised intrinsic value $ 6 $ 6
RSUs and MSUs | 2011 Plan | Trip Advisor    
WAEP    
Weighted average exercise price, grant date fair value (in dollars per share) $ 41.83  
Additional disclosures    
Weighted average period the unrecognized compensation cost will be recognized 2 years 10 months 24 days  
Unrecognized compensation cost, unvested options (in dollars) $ 284  
RSUs granted (in shares) 3,159,000