| Intangible Assets (Tables) | 9 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Sep. 30, 2013 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] | 
Based on its amortizable intangible assets as of September 30, 2013, Liberty expects that amortization expense will be as follows for the next five years (amounts in millions):
 
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| Schedule of Goodwill [Table Text Block] | Goodwill Changes in the carrying amounts of goodwill are as follows: 
 
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| Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block] | 
Other major intangible assets not subject to amortization, not separately disclosed, are SIRIUS XM tradenames ($930 million) and ANLBC franchise rights ($143 million) at September 30, 2013.  The increase from December 31, 2012 was due to the acquisition of SIRIUS XM in January 2013 as discussed in note 2.
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- Definition Tabular disclosure of the characteristics, including initial carrying value, residual amount, weighted average useful life, of finite-lived intangible assets acquired during the period by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by nature or by their use in the operations of the company. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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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. No definition available. 
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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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