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Guarantees (Tables) | 12 Months Ended
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Sep. 30, 2025
Guarantees [Abstract] |
Changes in Carrying Amount of Product Warranty Liability | The following table summarizes changes in the total product warranty liability (in millions).
| Year Ended September 30,
| 2025 |  | 2024
Balance at beginning of period | $ | 122 |  |  | $ | 91 |
Accruals for warranties issued during the period | 97 |  |  | 85 |
Settlements made (in cash or in kind) during the period | (99) |  |  | (87) |
Changes in estimates to pre-existing warranties | — |  |  | 31 |
Currency translation | — |  |  | 2 |
Balance at end of period | $ | 120 |  |  | $ | 122 |

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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-8 + Details
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