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Annual report pursuant to Section 13 and 15(d)

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

v2.4.0.6
Investments In Available-For-Sale Securities And Other Cost Investments (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended 3 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Jun. 30, 2011
Feb. 25, 2010
Jun. 30, 2011
Live Nation [Member]
Dec. 31, 2012
Time Warner Inc [Member]
Dec. 31, 2012
Sprint [Member]
Dec. 31, 2012
Viacom, Inc. [Member]
Dec. 31, 2012
SIRIUS XM [Member]
Sale of Available for Sale Securities, Shares Ìý Ìý Ìý Ìý Ìý Ìý 5,000,000 15,000,000 2,000,000 Ìý
Proceeds from Sale of Available-for-sale Securities Ìý Ìý Ìý Ìý Ìý Ìý $ 225 $ 84 $ 105 Ìý
Payments for (Proceeds from) Derivative Instrument, Financing Activities 9 0 (751) Ìý Ìý Ìý 24 33 6 Ìý
Ownership Interest In Investee Ìý Ìý Ìý Ìý 14.60% Ìý Ìý Ìý Ìý Ìý
The total value of Non-strategic Securities 1,079 1,435 Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Payments to Acquire Investments 1,716 350 405 Ìý Ìý 58 Ìý Ìý Ìý Ìý
Debt Instrument Principal amount tendered and retired Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý $ 125
Subscription Agreement Shares Ìý Ìý Ìý 5,500,000 Ìý Ìý Ìý Ìý Ìý Ìý