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EQUITY - Schedule of Share-Based Compensation (Details) - USD ($) $ in Millions | 12 Months Ended
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Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2023
Equity [Abstract] |  |  |
Share-based compensation | $ 70.5 | $ 79.8 | $ 68.1
Related tax benefit recognized | $ 13.3 | $ 14.8 | $ 15.6

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- Definition Amount of tax benefit for recognition of expense of award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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