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New Accounting Guidance | 9 Months Ended
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Jun. 30, 2025
Accounting Standards Update and Change in Accounting Principle [Abstract] |
New Accounting Guidance | NEW ACCOUNTING GUIDANCE New Accounting Guidance to be Implemented Climate-Related Disclosures In March 2024, the SEC issued Release No. 33-11275, “The Enhancement and Standardization of Climate-Related Disclosures for Investors", which includes final rules for providing qualitative and quantitative disclosures regarding certain climate-related topics on an annual basis. As a result of legal challenges, the SEC issued an order in April 2024 to stay the effectiveness of the rules pending the completion of judicial review of the consolidated challenges before the United States Court of Appeals for the Eighth Circuit. The SEC subsequently announced its withdrawal of its legal defense to such challenges in March 2025; however, the rules have not been formally rescinded by the SEC. In April 2025, the appellate court suspended its proceedings indefinitely and directed the SEC to file a status report outlining its next steps. In response, the SEC stated in July 2025 that it does not intend to revisit the rules and requested the court to rule on the pending petitions. We continue to monitor these developments. Reportable Segment Disclosures In November 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) No. 2023-07, "Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures". We will adopt the update upon its effective date, which applies to our Annual Report on Form 10-K for the fiscal year ending 30 September 2025 and Forms 10-Q for interim periods thereafter. Upon adoption, we will expand our segment financial information disclosures to include significant expense categories that are regularly provided to our chief operating decision maker as well as other segment items reflected in the reported measure of segment profit or loss. Historical periods provided in the affected reports will be recast to conform to the amended presentation. Income Tax Disclosures In December 2023, the FASB issued ASU 2023-09, “Income Taxes (Topic 740)—Improvements to Income Tax Disclosures”, to expand income tax disclosures, primarily through disaggregation requirements for the rate reconciliation and income taxes paid. The update will be effective in our Annual Report on Form 10-K for the fiscal year ending 30 September 2026, although early adoption is permitted. The amendments should be applied on a prospective basis with a retrospective option. We are evaluating the impact this update will have on our disclosures. Disaggregation of Income Statement Expenses In November 2024, the FASB issued ASU 2024-03, “Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses”, which requires additional disclosures of certain costs and expenses, including purchases of inventory, employee compensation, depreciation, intangible asset amortization, as well as selling expenses in the notes to the financial statements. In January 2025, the FASB clarified that the update will be effective in our Annual Report on Form 10-K for the fiscal year ending 30 September 2028 as well as interim periods thereafter, although early adoption is permitted. The amendments should be applied either prospectively after the effective date or retrospectively to any or all periods presented. We are evaluating the impact this update will have on our disclosures.

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- Definition The entire disclosure for change in accounting principle. 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