Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Narrative) (Details)

v2.4.0.8
Stock-Based Compensation (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified
 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
TripAdvisor, Inc.
Jun. 30, 2013
TripAdvisor, Inc.
Jun. 30, 2014
TripAdvisor, Inc.
Jun. 30, 2013
TripAdvisor, Inc.
Jun. 30, 2014
Restricted Stock Units (RSUs)
TripAdvisor, Inc.
Jun. 30, 2014
Common Class A
Liberty Interactive
Dec. 31, 2013
Common Class A
Liberty Interactive
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]                      
Options granted             491,000     1,810,000  
WAEP of grants in the period             $ 96.45     $ 29.21  
Weighted average grant-date fair value of options             $ 47.25     $ 12.06  
Award vesting period                   4 years  
Issuance of common stock upon exercise of stock options             834,000     1,965,000  
WAEP exercised             $ 33.46     $ 14.54  
Outstanding options         8,900,000   8,900,000     30,321,000 30,607,000
Exercisable options         4,000,000   4,000,000     14,765,000  
Outstanding WAEP         $ 43.79   $ 43.79     $ 18.86 $ 17.98
Exercisable WAEP         $ 31.79   $ 31.79     $ 17.04  
Aggregate intrinsic value of options outstanding         $ 578   $ 578     $ 319  
Aggregate intrinsic value of options exercisable         306   306     182  
Stock-based compensation 43 44 85 86 17 13 34 30      
Nonvested awards, Total compensation cost not yet recognized, stock options         99   99        
Total unrecognized compensation cost related to unvested Liberty equity awards 127   127                
Weighted average period of recognition related to unvested equity awards (in years)     2 years 2 months 12 days       3 years   3 years 2 months 10 days    
Grants in period             513,000        
Nonvested awards, number         1,300,000   1,300,000        
Total compensation cost not yet recognized, awards other than options         $ 57   $ 57        
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate     0.00%