Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Narrative) (Details)

v2.4.0.8
Stock-Based Compensation (Narrative) (Details) (USD $)
 3 Months Ended 12 Months Ended 12 Months Ended 3 Months Ended 3 Months Ended 12 Months Ended 3 Months Ended 12 Months Ended 3 Months Ended 12 Months Ended
Sep. 30, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Aug. 09, 2012
Jun. 24, 2010
May 01, 2007
Dec. 31, 2000
Dec. 31, 2013
Minimum [Member]
Dec. 31, 2013
Maximum [Member]
Dec. 31, 2012
Interactive Group [Member]
Dec. 31, 2013
Interactive Group [Member]
Dec. 31, 2012
Interactive Group [Member]
Series A [Member]
Dec. 31, 2013
Interactive Group [Member]
Series A [Member]
Dec. 31, 2012
Interactive Group [Member]
Series A [Member]
Dec. 31, 2011
Interactive Group [Member]
Series A [Member]
Dec. 31, 2012
Ventures Group [Member]
Dec. 31, 2013
Ventures Group [Member]
Dec. 31, 2012
Ventures Group [Member]
Series A [Member]
Mar. 31, 2012
Ventures Group [Member]
Series A [Member]
Dec. 31, 2013
Ventures Group [Member]
Series A [Member]
Dec. 31, 2013
TripAdvisor, Inc. [Member]
Dec. 31, 2013
Option Exchange [Member]
Interactive Group [Member]
Dec. 31, 2013
Option Exchange [Member]
Ventures Group [Member]
Dec. 31, 2012
Option Exchange [Member]
Dec. 31, 2013
2012 Plan [Member]
Minimum [Member]
Dec. 31, 2013
2012 Plan [Member]
Maximum [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio 0.05                                                    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized         40,000,000 42,900,000 4,200,000 2,900,000                                      
Options granted                         20,100,000 4,300,000 3,400,000 6,200,000   7,000 900,000 0 7,000 2,800,000          
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term                 1 year 3 months 19 days 9 years                               5 years 10 years
Weighted average grant-date fair value of options                         $ 7.15 $ 8.26 $ 8.44 $ 7.32     $ 26.58 $ 27.29 $ 57.37 $ 28.30          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period                                   (195,000)       1,500,000          
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price                                   $ 52.81       $ 23.81          
Stock-based compensation, vesting period (in years)                                                   4 years 5 years
Weighted average period of recognition related to unvested Liberty equity awards (in years)   1 year 6 months                                       3 years          
Dividend rate to estimate fair value   0.00%                                                  
Total unrecognized compensation cost related to unvested Liberty equity awards   $ 109,000,000                                       $ 104,000,000          
Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Incremental Compensation Cost                     17,000,000           4,000,000                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value   76,000,000 339,000,000 33,000,000                                         242,000,000    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number                       1,500,000           100,000         4,600,000 300,000      
Vested Restricted Stock                                             2,000,000 100,000      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value                       $ 17.09           $ 13.36                  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Total Fair Value   16,000,000 12,000,000 14,000,000                                              
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price                                   $ 116.03       $ 58.03          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number                           30,607,000     1,155,000       966,000 9,500,000          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number                                   492,000       3,500,000          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price   $ 40.18                             $ 56.26 $ 57.42                  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price   $ 30.11                               $ 55.47                  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value                           348,277,000             62,981,000 404,000,000          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value   186,000,000                       181,315,000             33,042,000            
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options                                           $ 33,000,000