Investments In Affiliates Accounted For Using The Equity Method (Schedule Of Equity Ownership And Carrying Amount) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |||||||
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Mar. 31, 2013
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Dec. 31, 2012
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Investments in affiliates, accounted for using the equity method (note 7) | $ 870 | $ 3,341 | ||||||
SIRIUS XM [Member]
|
听 | 听 | ||||||
Investments in affiliates, accounted for using the equity method (note 7) | 听 | 2,766 | [1] | |||||
Live Nation [Member]
|
听 | 听 | ||||||
Payments to Acquire Equity Method Investments | 19 | 听 | ||||||
Percentage ownership | 27.00% | [2] | 听 | |||||
Investments in affiliates, accounted for using the equity method (note 7) | 393 | [2] | 406 | [2] | ||||
Equity Method Investment, Quoted Market Value | 644 | 听 | ||||||
Sirius XM Canada [Member]
|
听 | 听 | ||||||
Percentage ownership | 38.00% | 听 | ||||||
Investments in affiliates, accounted for using the equity method (note 7) | 281 | [2] | 听 | |||||
Equity Method Investment, Quoted Market Value | 295 | 听 | ||||||
Equity method investment, other [Member]
|
听 | 听 | ||||||
Investments in affiliates, accounted for using the equity method (note 7) | $ 196 | $ 169 | ||||||
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