Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Narrative) (Details)

v2.4.0.8
Stock-Based Compensation (Narrative) (Details) (USD $)
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Issuance of common stock upon exercise of stock options $ 2,000,000  
Stock-based compensation 42,000,000 42,000,000
Total unrecognized compensation cost related to unvested Liberty equity awards 146,000,000  
Weighted average period of recognition related to unvested equity awards (in years) 2 years 0 months 0 days  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate 0.00%  
TripAdvisor, Inc.
   
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Options granted 477,000  
WAEP of grants in the period $ 96.62  
Weighted average grant-date fair value of options $ 47.36  
Issuance of common stock upon exercise of stock options 599,000  
WAEP exercised $ 34.63  
Outstanding options 9,300,000  
Exercisable options 4,200,000  
Outstanding WAEP $ 43.40  
Exercisable WAEP $ 31.54  
Aggregate intrinsic value of options outstanding 440,000,000  
Aggregate intrinsic value of options exercisable 247,000,000  
Stock-based compensation 17,000,000 17,000,000
Nonvested awards, Total compensation cost not yet recognized, stock options 110,000,000  
Weighted average period of recognition related to unvested equity awards (in years) 3 years 2 months  
Grants in period 460,000  
Nonvested awards, number 1,300,000  
Total compensation cost not yet recognized, awards other than options $ 62,000,000  
Restricted Stock Units (RSUs) | TripAdvisor, Inc.
   
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Weighted average period of recognition related to unvested equity awards (in years) 3 years 5 months 0 days  
Series A | Liberty Interactive
   
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Options granted 1,800,000  
Weighted average grant-date fair value of options $ 12.06  
Award vesting period 4 years 0 months 0 days