Quarterly report pursuant to Section 13 or 15(d)

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

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Investments In Available-For-Sale Securities And Other Cost Investments (Tables)
6 Months Ended
Jun. 30, 2013
Investments In Available-For-Sale Securities And Other Cost Investments  
Available-for-sale Securities [Table Text Block]
Investments in AFS securities, including Fair Value Option Securities separately aggregated, and other cost investments are summarized as follows:
 
June 30,
2013
 
December 31,
2012
 
amounts in millions
Fair Value Option Securities
 
 
 
  Time Warner, Inc. (a)
$
256

 
211

  Time Warner Cable, Inc. (a)
266

 
230

  Viacom, Inc. (a)
247

 
192

  CenturyLink, Inc. (a)
64

 
70

  Barnes & Noble, Inc.
266

 
262

  Other equity securities
77

 
58

  Other debt securities
25

 
56

      Total Fair Value Option Securities
1,201

 
1,079

AFS and cost investments
 
 
 
  SIRIUS XM debt securities (b)

 
249

  Live Nation Entertainment, Inc. ("Live Nation") debt securities
24

 
25

    Other AFS and cost investments
45

 
39

      Total AFS and cost investments
69

 
313

 
$
1,270

 
1,392


(a)
See note 9 for details regarding the number and fair value of shares pledged as collateral pursuant to certain margin loan agreements as of June 30, 2013.
(b)
Unrealized Holdings Gains And Losses
Unrealized holding gains and losses related to investments in AFS securities are summarized below.
 
June 30, 2013
 
December 31, 2012
 
Equity
securities
 
Debt
securities
 
Equity
securities
 
Debt
securities
 
amounts in millions
Gross unrealized holding gains
$
5

 
1

 
2

 
37

Gross unrealized holding losses
$