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Pension and Other Postretirement Benefit Plans (Tables) | 3 Months Ended
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Dec. 31, 2022
Retirement Benefits [Abstract] |
Net Periodic Pension and Other Postretirement Benefit Cost | Net periodic pension and other postretirement benefit cost for the plans included the following:
| Three months ended December 31,
| Pension |  | Other Postretirement
| 2022 |  | 2021 |  | 2022 |  | 2021
Service cost | $ | 57 |  |  | $ | 380 |  |  | $ | 19 |  |  | $ | 41 |
Interest cost * | 143 |  |  | 990 |  |  | 161 |  |  | 103 |
Expected return on plan assets * | — |  |  | (1,042) |  |  | — |  |  | — |
Amortization: |  |  |  |  |  |  |
Prior service credit | — |  |  | 47 |  |  | (91) |  |  | (91) |
Net actuarial loss * | (10) |  |  | 201 |  |  | (177) |  |  | — |
Settlement losses * | 1,271 |  |  | 30,856 |  |  | — |  |  | — |
Net benefit cost | $ | 1,461 |  |  | $ | 31,432 |  |  | $ | (88) |  |  | $ | 53 |
* Non-service components of pension and postretirement expense are included in other income (deductions), net.

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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