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v3.23.3

Debt and Other Obligations Debt and Other Obligations - Debt Outstanding (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Jan. 17, 2012
Short-term debt |  |  |  |
Coupon rate |  |  |  | 7.10%
Short-term debt, net of discounts |  | $ 432 | $ 1,172 |
Current maturities of long-term debt of variable interest entities issued at par |  | 35 | 39 |
Total Current maturities of power bonds issued at par |  | 1,022 | 29 |
Current maturities of power bonds |  | 1,022 | 29 |
Total current debt outstanding, net |  | 1,489 | 1,240 |
Long-term debt |  |  |  |
Long-term power bonds, net |  | 17,844 | 17,826 |
Long-term power bonds | [1] | 17,970 | 17,950 |
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net |  | (126) | (124) |
Long-term debt of variable interest entities, net |  | 933 | 968 |
Total long-term debt, net |  | $ 18,777 | 18,794 |
880591DX7 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 4.65% |  |
Debt Instrument, Maturity Date |  | Jun. 15, 2035 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 436 | 436 |
880591EF5 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 3.77% |  |
Debt Instrument, Maturity Date |  | Jun. 15, 2034 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 139 | 160 |
880591ER9 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 2.875% |  |
Debt Instrument, Maturity Date |  | Sep. 15, 2024 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 0 | 1,000 |
880591CJ9 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 6.75% |  |
Debt Instrument, Maturity Date |  | Nov. 01, 2025 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 1,350 | 1,350 |
880591EU2 [Member] |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 2.875% |  |
Debt Instrument, Maturity Date |  | Feb. 01, 2027 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 1,000 | 1,000 |
880591300 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 2.134% |  |
Debt Instrument, Maturity Date |  | Jun. 01, 2028 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 256 | 256 |
880591409 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 2.216% |  |
Debt Instrument, Maturity Date |  | May 01, 2029 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 208 | 208 |
880591DM1 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 7.125% |  |
Debt Instrument, Maturity Date |  | May 01, 2030 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 1,000 | 1,000 |
880591DV1 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 4.70% |  |
Debt Instrument, Maturity Date |  | Jul. 15, 2033 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 472 | 472 |
880591DP4 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 6.587% |  |
Debt Instrument, Maturity Date |  | Jun. 07, 2032 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 305 | 279 |
880591CK6 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 5.98% |  |
Debt Instrument, Maturity Date |  | Apr. 01, 2036 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 121 | 121 |
880591CS9 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 5.88% |  |
Debt Instrument, Maturity Date |  | Apr. 01, 2036 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 1,500 | 1,500 |
880591CP5 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 6.15% |  |
Debt Instrument, Maturity Date |  | Jan. 15, 2038 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 1,000 | 1,000 |
880591ED0 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 5.50% |  |
Debt Instrument, Maturity Date |  | Jun. 15, 2038 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 500 | 500 |
880591EH1 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 5.25% |  |
Debt Instrument, Maturity Date |  | Sep. 15, 2039 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 2,000 | 2,000 |
880591EP3 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 3.50% |  |
Debt Instrument, Maturity Date |  | Dec. 15, 2042 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 1,000 | 1,000 |
880591DU3 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 4.962% |  |
Debt Instrument, Maturity Date |  | Jun. 07, 2043 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 183 | 168 |
880591EB4 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 4.875% |  |
Debt Instrument, Maturity Date |  | Jan. 15, 2048 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 500 | 500 |
880591DZ2 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 5.375% |  |
Debt Instrument, Maturity Date |  | Apr. 01, 2056 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 1,000 | 1,000 |
880591EJ7 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 4.625% |  |
Debt Instrument, Maturity Date |  | Sep. 15, 2060 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 1,000 | 1,000 |
880591ES7 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 4.25% |  |
Debt Instrument, Maturity Date |  | Sep. 15, 2065 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 1,000 | 1,000 |
880591EW8 [Member] |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 0.75% |  |
Debt Instrument, Maturity Date |  | May 15, 2025 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 1,000 | 1,000 |
880591EX6 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 1.50% |  |
Debt Instrument, Maturity Date |  | Sep. 15, 2031 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 500 | 500 |
880591EY4 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 4.25% |  |
Debt Instrument, Maturity Date |  | Sep. 15, 2052 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 500 | 500 |
880591EZ1 |  |  |  |
Short-term debt |  |  |  |
Coupon rate |  | 3.875% |  |
Debt Instrument, Maturity Date |  | Mar. 15, 2028 |  |
Long-term debt |  |  |  |
Long-term power bonds, net |  | $ 1,000 | $ 0 |
[1] | Includes total net exchange gain from currency transactions of $109 million and $150 million at September 30, 2023 and 2022

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