Registration of securities issued in business combination transactions

Stock Options and Other Share-Based Payments (Details 4)

v2.4.0.8
Stock Options and Other Share-Based Payments (Details 4) (USD $)
In Millions, except Share data, unless otherwise specified
 3 Months Ended 12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Additional disclosures, restricted stock plan          
Stock-based compensation expense (in dollars) $ 10 $ 5 $ 34 $ 22 $ 18
Restricted shares
          
Additional disclosures, restricted stock plan          
Stock-based compensation expense (in dollars)     5 4 3
Total unrecognized compensation cost (in dollars)     $ 12    
LINTA | Restricted shares
          
Restricted Shares          
Outstanding at the beginning of the period (in shares)   1,310,472 1,310,472 1,518,169 1,315,310
Granted (in shares)     657,247 375,160 586,586
Lapsed (in shares)     (490,150) (443,478) (322,077)
Forfeited (in shares)     (23,421) (139,379) (61,650)
Outstanding at the end of the period (in shares)     1,454,148 1,310,472 1,518,169
Weighted average grant date fair value          
Outstanding at the beginning of the period (in dollars per share)   $ 9.83 $ 9.83 $ 7.16 $ 3.59
Granted (in dollars per share)     $ 16.84 $ 16.33 $ 12.97
Lapsed (in dollars per share)     $ 8.09 $ 6.39 $ 3.60
Forfeited (in dollars per share)     $ 13.25 $ 8.69 $ 4.83
Outstanding at the end of the period (in dollars per share)     $ 12.75 $ 9.83 $ 7.16
Additional disclosures, restricted stock plan          
Weighted average life     2 years 6 months 2 years 1 month 6 days 2 years 7 months 6 days
LVNTA | Restricted shares
          
Restricted Shares          
Granted (in shares)     66,350    
Lapsed (in shares)     (461)    
Forfeited (in shares)     (347)    
Outstanding at the end of the period (in shares)     65,542    
Weighted average grant date fair value          
Granted (in dollars per share)     $ 31.72    
Lapsed (in dollars per share)     $ 22.78    
Forfeited (in dollars per share)     $ 36.75    
Outstanding at the end of the period (in dollars per share)     $ 31.75    
Additional disclosures, restricted stock plan          
Weighted average life     2 years 3 months 18 days