Investments In Affiliates Accounted For Using The Equity Method (Schedule Of Equity Ownership And Carrying Amount) (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2012
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Dec. 31, 2011
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Investments in affiliates, accounted for using the equity method | $ 3,341 | $ 563 | ||||||||
Other [Member]
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Investments in affiliates, accounted for using the equity method | 169 | 126 | ||||||||
SIRIUS XM [Member]
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Percentage ownership | 49.00% | |||||||||
Investments in affiliates, accounted for using the equity method | 2,766 | [1],[2] | 82 | [1],[2] | ||||||
Equity Method Investment, Quoted Market Value | 9,372 | |||||||||
Live Nation [Member]
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Percentage ownership | 27.00% | |||||||||
Investments in affiliates, accounted for using the equity method | 406 | [1],[3] | 355 | [1],[3] | ||||||
Equity Method Investment, Quoted Market Value | $ 469 | |||||||||
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