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Long-Term Debt (Debt Securities That Are Not Reported At Fair Value) (Details) (USD $)
In Millions, unless otherwise specified |
Sep. 30, 2013
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Dec. 31, 2012
|
|---|---|---|
| Carrying value of debt measured at fair value | $ 2,236 | $ 2,443 |
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Senior Debentures [Member]
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| Carrying value of debt measured at fair value | 837 | |
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QVC Senior Secured Notes [Member]
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| Carrying value of debt measured at fair value | $ 2,828 |