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Debt and Other Obligations | 6 Months Ended
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Mar. 31, 2013
Debt Disclosure [Abstract] |
Debt and Other Obligations | Debt and Other Obligations Debt Outstanding Total debt outstanding at March 31, 2013, and September 30, 2012, consisted of the following:
Debt Outstanding
| At March 31, 2013 |  | At September 30, 2012
Short-term debt |  |  |
Short-term debt, net | $ | 2,045 |  |  | $ | 1,507 |
Current maturities of long-term debt of variable interest entities | 13 |  |  | 13 |
Current maturities of power bonds | 1,242 |  |  | 2,308 |
Total current debt outstanding, net | 3,300 |  |  | 3,828 |
Long-term debt |  |  |  |  |
Long-term debt of variable interest entities | 975 |  |  | 981 |
Long-term power bonds | 21,042 |  |  | 20,330 |
Unamortized discounts, premiums and other | (83 | ) |  | (61 | )
Total long-term debt, net | 21,934 |  |  | 21,250 |
Total outstanding debt | $ | 25,234 |  |  | $ | 25,078 |
Debt Securities Activity The table below summarizes the long-term debt securities activity for the period from October 1, 2012, to March 31, 2013.
Debt Securities Activity
| Date |  | Amount |  | Interest Rate
Issues |  |  |  |  |
2012 Series B(1) | December 2012 |  | $ | 1,000 |  |  | 3.50 | %
electronotes® | Second Quarter 2013 |  | 92 |  |  | 3.21 | %
Discount on debt issues |  |  | (25 | ) |  |
Total long-term debt issuances |  |  | $ | 1,067 |  |  |
Redemptions/Maturities(2) |  |  |  |  |
2009 Series A | November 2012 |  | $ | 2 |  |  | 2.25 | %
2009 Series B | December 2012 |  | 1 |  |  | 3.77 | %
1998 Series C | March 2013 |  | 1,359 |  |  | 6.00 | %
electronotes® | First Quarter 2013 |  | 8 |  |  | 4.91 | %
electronotes® | Second Quarter 2013 |  | 17 |  |  | 4.98 | %
Total redemptions/maturities |  |  | $ | 1,387 |  |  |
Notes (1) The 2012 Series B bonds were issued at 97.49 percent of par. (2) All redemptions were at 100 percent of par. Putable Automatic Rate Reset Securities. The interest rate on the 1999 Series A Putable Automatic Rate Reset Securities ("1999 Series A Bonds") was reset on May 1, 2013, from 4.15 percent to 3.96 percent. Because investors have the opportunity to put these securities to TVA in the event of a rate reset, and because the rates met the condition to reset as of March 31, 2013, TVA reclassified the outstanding principal balance of $271 million of 1999 Series A Bonds to current maturities of long-term debt at March 31, 2013. TVA redeemed $1 million of the 1999 Series A Bonds on May 1, 2013. Credit Facility Agreements. TVA and the U.S. Treasury, pursuant to the TVA Act, have entered into a memorandum of understanding under which the U.S. Treasury provides TVA with a $150 million credit facility. This credit facility was renewed for fiscal year 2013 with a maturity date of September 30, 2013. Access to this credit facility or other similar financing arrangements with the U.S. Treasury has been available to TVA since the 1960s. TVA plans to use the U.S. Treasury credit facility as a secondary source of liquidity. The interest rate on any borrowing under this facility is based on the average rate on outstanding marketable obligations of the United States with maturities from date of issue of one year or less. There were no outstanding borrowings under the facility at March 31, 2013 or September 30, 2012. TVA also has funding available in the form of three long-term revolving credit facilities totaling $2.5 billion. One $1.0 billion credit facility matures on June 25, 2017, another $1.0 billion credit facility matures on December 13, 2017, and the $0.5 billion credit facility matures on April 5, 2018. The $0.5 billion credit facility replaced a previous $0.5 billion credit facility maturing on January 14, 2014. See Note 18 — Credit Facility. The interest rate on any borrowing under these facilities varies based on market factors and the rating of TVA's senior unsecured long-term non-credit enhanced debt. TVA is required to pay an unused facility fee on the portion of the total $2.5 billion that TVA has not borrowed or committed under letters of credit. This fee, along with letter of credit fees, may fluctuate depending on the rating of TVA's senior unsecured long-term non-credit enhanced debt. At March 31, 2013, there were $1.1 billion of letters of credit outstanding under the facilities, and there were no borrowings outstanding. See Note 13 — Other Derivative Instruments — Collateral.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20,22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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