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Debt and Other Obligations Debt Outstanding (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Sep. 30, 2013 | Sep. 30, 2003 Units
Debt Instrument |  |  |  |  |
Foreign Currency Transaction Gain (Loss), before Tax | $ 65 |  | $ 43 |  |
Proceeds prior to 2004 |  |  |  |  | 945
Leaseback transaction, number of units |  |  |  |  | 24
Proceeds in 2003 |  |  |  |  | 389
CT and QTE outstanding leaseback obligation | 760 |  | 761 |  |
Short-term debt |  |  |  |  |
Short-term debt, net | 1,825 |  | 2,432 |  |
Current maturities of long-term debt of variable interest entities | 30 |  | 30 |  |
Current maturities of power bonds | 355 |  | 32 |  |
Total current debt outstanding, net | 2,210 |  | 2,494 |  |
Long-term debt |  |  |  |  |
Long-term debt of variable interest entities | 1,311 |  | 1,311 |  |
Long-term power bonds | 22,092 | [1] | 22,400 | [1] |
Unamortized discounts, premiums and other | (83) |  | (85) |  |
Total long-term debt, net | 23,320 |  | 23,626 |  |
Total outstanding debt | $ 25,530 |  | $ 26,120 |  |
[1] | Includes net exchange losses from currency transactions of $65 million at December 31, 2013 and $43 million at September 30, 2013.

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