Annual report pursuant to Section 13 and 15(d)

Stock Options and Other Share-Based Awards Stock Options and Other Share-Based Awards (Stock Options Valuations Assumptions) (Details)

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Stock Options and Other Share-Based Awards Stock Options and Other Share-Based Awards (Stock Options Valuations Assumptions) (Details) - Liberty Incentive Plan - LINTA - Stock options
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Black- Scholes option pricing model valuation assumptions      
Expected volatility 39.70% 38.70% 38.30%
Expected term (years) 5 years 11 months 6 years 3 months 18 days 6 years 2 months 12 days
Risk free interest rate 1.70% 2.00% 1.10%