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Guarantees (Tables) | 12 Months Ended
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Sep. 30, 2021
Product Warranties Disclosures [Abstract] |
Changes in Carrying Amount of Product Warranty Liability | The changes in the carrying amount of the Company’s total product warranty liability for continuing operations for the fiscal years ended September 30, 2021 and 2020 were as follows (in millions). Extended warranty for which deferred revenue is recorded is not included in the table below, but rather included within the contract balances table in the Note 4, "Revenue Recognition," of the notes to consolidated financial statements for all periods presented.
| Year Ended September 30,
| 2021 |  | 2020
Balance at beginning of period | $ | 167 |  |  | $ | 156 |
Accruals for warranties issued during the period | 91 |  |  | 71 |
Accruals related to pre-existing warranties | 11 |  |  | 9 |
Settlements made (in cash or in kind) during the period | (77) |  |  | (71) |
Currency translation | — |  |  | 2 |
Balance at end of period | $ | 192 |  |  | $ | 167 |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=123368208&loc=d3e12565-110249 + Details
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