Quarterly report pursuant to Section 13 or 15(d)

Investments In Available-For-Sale Securities And Other Cost Investments (Details)

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Investments In Available-For-Sale Securities And Other Cost Investments (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Investments in available-for-sale securities $ 1,831 $ 1,859
Segment, Liberty Capital [Member] | Time Warner Inc [Member]
   
Investments in available-for-sale securities 356 340
Segment, Liberty Capital [Member] | Time Warner Cable Inc [Member]
   
Investments in available-for-sale securities 193 150
Segment, Liberty Capital [Member] | Sprint [Member]
   
Investments in available-for-sale securities 54 44
Segment, Liberty Capital [Member] | Viacom, Inc. [Member]
   
Investments in available-for-sale securities 360 345
Segment, Liberty Capital [Member] | Century Link, Inc. [Member]
   
Investments in available-for-sale securities 70 67
Segment, Liberty Capital [Member] | Barnes & Noble, Inc. [Member]
   
Investments in available-for-sale securities 232 253
Segment, Liberty Capital [Member] | Other AFS Equity Securities [Member]
   
Investments in available-for-sale securities 34 46
Segment, Liberty Capital [Member] | SIRIUS XM Debt Securities [Member]
   
Investments in available-for-sale securities 392 384
Segment, Liberty Capital [Member] | Live Nation [Member]
   
Investments in available-for-sale securities 24 24
Segment, Liberty Capital [Member] | Other AFS Debt Securities [Member]
   
Investments in available-for-sale securities $ 116 $ 206