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Short-Term and Long-Term Debt (Tables) | 6 Months Ended
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Mar. 31, 2025
Debt Disclosure [Abstract] |
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments | The following table presents the carrying amounts and estimated fair values of Long-term debt in the Consolidated Balance Sheet (in millions):
|  | March 31, 2025 |  | September 30, 2024
|  | Carrying Value |  | Fair Value |  | Carrying Value |  | Fair Value
Current portion of long-term debt |  | $ | 4 |  |  | $ | 4 |  |  | $ | 307 |  |  | $ | 305 |
Long-term debt |  | 2,568 |  |  | 2,262 |  |  | 2,561 |  |  | 2,334 |

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- Definition Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements. + References No definition available. + Details
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