Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Common Stock Reserved For Issuance Upon Exercise Of Stock Options) (Details)

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Stockholders' Equity (Common Stock Reserved For Issuance Upon Exercise Of Stock Options) (Details)
In Millions
Jun. 30, 2011
Series A [Member] | Segment, Liberty Capital [Member]
 
Liberty common stock reserved for future issuance 4.4
Series A [Member] | Segment, Liberty Interactive [Member]
 
Liberty common stock reserved for future issuance 46.0
Series A [Member] | Segment, Liberty Starz [Member]
 
Liberty common stock reserved for future issuance 3.5
Series B [Member] | Segment, Liberty Interactive [Member]
 
Liberty common stock reserved for future issuance 0.5
Series B [Member] | Segment, Liberty Starz [Member]
 
Liberty common stock reserved for future issuance 0.1