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

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Investments In Available-For-Sale Securities And Other Cost Investments Investments In Available-For-Sale Securities And Other Cost Investments (Notes)	6 Months Ended
	Jun. 30, 2013
Schedule of Available-for-sale Securities [Line Items]	Ìý
Investment [Text Block]	Investments in Available-for-Sale Securities and Other Cost Investments All marketable equity and debt securities held by the Company are classified as available-for-sale ("AFS") and are carried at fair value generally based on quoted market prices. GAAP permits entities to choose to measure many financial instruments, such as AFS securities, and certain other items at fair value and to recognize the changes in fair value of such instruments in the entity's statement of operations (the "fair value option"). The Company previously entered into economic hedges for certain of its non-strategic AFS securities (although such instruments were not accounted for as fair value hedges by the Company). Changes in the fair value of these economic hedges were reflected in the Company's statement of operations as unrealized gains (losses). In order to better match the changes in fair value of the subject AFS securities and the changes in fair value of the corresponding economic hedges in the Company's financial statements, the Company elected the fair value option for those of its AFS securities which it considers to be non-strategic ("Fair Value Option Securities"). Accordingly, changes in the fair value of Fair Value Option Securities, as determined by quoted market prices, are reported in realized and unrealized gains (losses) on financial instruments in the accompanying condensed consolidated statements of operations. Investments in AFS securities, including Fair Value Option Securities separately aggregated, and other cost investments are summarized as follows: Ìý JuneÌý30, 2013 Ìý DecemberÌý31, 2012 Ìý amounts in millions Fair Value Option Securities Ìý Ìý Ìý ÌýÌýTime Warner,ÌýInc. (a) $ 256 Ìý 211 ÌýÌýTime Warner Cable,ÌýInc. (a) 266 Ìý 230 ÌýÌýViacom,ÌýInc.Ìý(a) 247 Ìý 192 ÌýÌýCenturyLink,ÌýInc. (a) 64 Ìý 70 ÌýÌýBarnes & Noble, Inc. 266 Ìý 262 ÌýÌýOther equity securities 77 Ìý 58 ÌýÌýOther debt securities 25 Ìý 56 ÌýÌýÌýÌýÌýÌýTotal Fair Value Option Securities 1,201 Ìý 1,079 AFS and cost investments Ìý Ìý Ìý ÌýÌýSIRIUS XM debt securities (b) — Ìý 249 ÌýÌýLive Nation Entertainment, Inc. ("Live Nation") debt securities 24 Ìý 25 ÌýÌýÌýÌýOther AFS and cost investments 45 Ìý 39 ÌýÌýÌýÌýÌýÌýTotal AFS and cost investments 69 Ìý 313 Ìý $ 1,270 Ìý 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) During the six months ended JuneÌý30, 2013, as discussed in note 1, Liberty acquired an additional 50 million common shares and acquired a controlling interest in SIRIUS XM and as a result consolidates SIRIUS XM as of such date. Therefore, the related SIRIUS XM debt securities are considered effectively settled upon consolidation. Unrealized Holding Gains and Losses Unrealized holding gains and losses related to investments in AFS securities are summarized below. Ìý JuneÌý30, 2013 Ìý DecemberÌý31, 2012 Ìý Equity securities Ìý Debt securities Ìý Equity securities Ìý Debt securities Ìý amounts in millions Gross unrealized holding gains $ 5 Ìý 1 Ìý 2 Ìý 37 Gross unrealized holding losses $ — Ìý — Ìý — Ìý — Liberty reclassified approximately $40 million of previously unrealized gains in the condensed consolidated statement of operations in gains (losses) on transactions, net for the six months ended June 30, 2013 due to the application of purchase accounting and the effective settlement of SIRIUS XM debt securities previously accounted for as available-for-sale securities through other comprehensive earnings (loss). Additionally, Liberty had no securities in a loss position greater than a year.