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Pension and Retirement Plans - Assumptions used for projected benefit obligation (Details) - Pension: | Sep. 30, 2023 | Sep. 30, 2022
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UNITED STATES |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Discount rate: | 5.62% | 5.14%
International |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Discount rate: | 5.40% | 5.20%
Expected return on plan assets: | 5.10% | 6.00%

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- Definition An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation. + References No definition available. + Details
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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (k)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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