Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation (Details)

v3.8.0.1
Stock Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Stock-Based Compensation        
Dividend rate     0.00%  
Additional disclosures        
Stock-based compensation $ 27 $ 24 $ 77 $ 68
Trip Advisor        
Additional disclosures        
Stock-based compensation $ 26 $ 22 $ 72 64
Liberty Incentive Plans | Series A        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]        
Options outstanding     661,000  
Granted     0  
Exercised     (80,000)  
Cancelled or expired     (2,000)  
Options outstanding 579,000   579,000  
Options exercisable 505,000   505,000  
WAEP        
Weighted average exercise price, options outstanding (in dollars per share)     $ 14.99  
Weighted average exercise price, options exercised (in dollars per share)     10.27  
Weighted average exercise price, options forfeited/cancelled (in dollars per share)     28.58  
Weighted average exercise price, options outstanding (in dollars per share) $ 15.61   15.61  
Weighted average exercise price, options exercisable (in dollars per share) $ 15.44   $ 15.44  
Weighted average remaining contractual term outstanding     2 years 3 months 18 days  
Weighted average remaining contractual term exercisable     1 year 9 months 18 days  
2014 Plan        
Additional disclosures        
Unvested value not yet recognized $ 11   $ 11  
Weighted average period the unrecognized compensation cost will be recognized     2 years  
Common Stock, Capital Shares Reserved for Future Issuance 2,400,000   2,400,000  
Restricted Stock Units (RSUs) | 2011 Plan | Trip Advisor        
Additional disclosures        
Weighted average period the unrecognized compensation cost will be recognized     3 years  
RSUs granted (in shares)     4,241,000  
Weighted average grant date fair value, granted during period RSUs (in dollars per share)     $ 42.65  
Unrecognized compensation cost, unvested RSUs $ 229   $ 229  
Stock Options | 2011 Plan | Trip Advisor        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]        
Options outstanding     5,818,000  
Granted     1,529,000  
Exercised     (488,000)  
Cancelled or expired     (572,000)  
Options outstanding 6,287,000   6,287,000  
Options exercisable 3,337,000   3,337,000  
WAEP        
Weighted average exercise price, options outstanding (in dollars per share)     $ 57.60  
Weighted average exercise price, options granted (in dollars per share)     42.81  
Weighted average exercise price, options exercised (in dollars per share)     29.49  
Weighted average exercise price, options forfeited/cancelled (in dollars per share)     68.82  
Weighted average exercise price, options outstanding (in dollars per share) $ 55.16   55.16  
Weighted average exercise price, options exercisable (in dollars per share) $ 52.51   $ 52.51  
Weighted average remaining contractual term outstanding     6 years 4 months 24 days  
Weighted average remaining contractual term exercisable     4 years 8 months 12 days  
Outstanding, aggregate intrinsic value $ 7   $ 7  
Exercisable, aggregate intrinsic value 7   $ 7  
Additional disclosures        
Weighted average period the unrecognized compensation cost will be recognized     2 years 4 months 24 days  
Unrecognized compensation cost, unvested options (in dollars) $ 49   $ 49  
Weighted average grant date fair value, options (in dollars per share)     $ 17.16  
Stock options exercised intrinsic value     $ 8 $ 23