Investments In Available-For-Sale Securities And Other Cost Investments (Details) (USD $)
In Millions, except Share data, unless otherwise specified |
1 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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Jun. 30, 2011
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Dec. 31, 2010
|
Jan. 31, 2011
Motorola Solutions [Member]
|
Jan. 31, 2011
Motorola Mobility [Member]
|
Dec. 31, 2011
Segment, Liberty Capital [Member]
Time Warner Inc [Member]
|
Dec. 31, 2010
Segment, Liberty Capital [Member]
Time Warner Inc [Member]
|
Dec. 31, 2011
Segment, Liberty Capital [Member]
Time Warner Cable Inc [Member]
|
Dec. 31, 2010
Segment, Liberty Capital [Member]
Time Warner Cable Inc [Member]
|
Dec. 31, 2011
Segment, Liberty Capital [Member]
Sprint [Member]
|
Dec. 31, 2010
Segment, Liberty Capital [Member]
Sprint [Member]
|
Dec. 31, 2011
Segment, Liberty Capital [Member]
Motorola Solutions [Member]
|
Dec. 31, 2010
Segment, Liberty Capital [Member]
Motorola Solutions [Member]
|
Dec. 31, 2011
Segment, Liberty Capital [Member]
Viacom, Inc. [Member]
|
Dec. 31, 2010
Segment, Liberty Capital [Member]
Viacom, Inc. [Member]
|
Dec. 31, 2011
Segment, Liberty Capital [Member]
Live Nation [Member]
|
Dec. 31, 2010
Segment, Liberty Capital [Member]
Live Nation [Member]
|
Dec. 31, 2011
Segment, Liberty Capital [Member]
Century Link, Inc. [Member]
|
Dec. 31, 2010
Segment, Liberty Capital [Member]
Century Link, Inc. [Member]
|
Dec. 31, 2011
Segment, Liberty Capital [Member]
Barnes & Noble, Inc. [Member]
|
Dec. 31, 2010
Segment, Liberty Capital [Member]
Barnes & Noble, Inc. [Member]
|
Dec. 31, 2011
Segment, Liberty Capital [Member]
Priceline [Member]
|
Dec. 31, 2010
Segment, Liberty Capital [Member]
Priceline [Member]
|
Dec. 31, 2011
Segment, Liberty Capital [Member]
Other AFS Equity Securities [Member]
|
Dec. 31, 2010
Segment, Liberty Capital [Member]
Other AFS Equity Securities [Member]
|
Dec. 31, 2011
Segment, Liberty Capital [Member]
SIRIUS XM Debt Securities [Member]
|
Dec. 31, 2010
Segment, Liberty Capital [Member]
SIRIUS XM Debt Securities [Member]
|
Dec. 31, 2011
Segment, Liberty Capital [Member]
Other AFS Debt Securities [Member]
|
Dec. 31, 2010
Segment, Liberty Capital [Member]
Other AFS Debt Securities [Member]
|
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Investments in available-for-sale securities | $ 1,859 | $ 4,550 | $ 340 | [1],[2] | $ 1,101 | [1],[2] | $ 150 | [1],[2] | $ 567 | [1],[2] | $ 44 | [1] | $ 301 | [1] | $ 0 | [1] | $ 471 | [1] | $ 345 | $ 301 | $ 24 | [3] | $ 389 | [3] | $ 67 | [1] | $ 248 | [1] | $ 253 | [4] | $ 0 | [4] | $ 0 | [1] | $ 208 | [1] | $ 46 | [1],[2] | $ 176 | [1],[2] | $ 384 | $ 384 | $ 206 | $ 404 | |||||||||||
Stock issued during period, stock splits (shares) | 0.125 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Stock issued during period, stock reverse splits (shares) | 0.1428571429 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subscription agreement, shares | 5,500,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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