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           Intangible Assets Intangible Assets (Tables) 
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        3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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           Mar. 31, 2014 
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| Goodwill and Intangible Assets Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Goodwill | 
 Goodwill 
Changes in the carrying amounts of goodwill are as follows: 
 
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| Intangible Assets Subject to Amortization | 
 
Based on its amortizable intangible assets as of March 31, 2014, Liberty expects that amortization expense will be as follows for the next five years (amounts in millions):
 
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- Details 
          
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- Definition 
          Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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