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v3.25.3

Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions | 12 Months Ended
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Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2023
Allowance for doubtful accounts |  |  |  |  |  |  |
Valuation and Qualifying Accounts |  |  |  |  |  |  |
Balance at Beginning of Year |  | $ 22.0 | [1] | $ 17.0 |  | $ 13.0 |
Charged to Costs and Expenses |  | 5.0 | [1] | 13.0 |  | 9.0 |
Charged to Other Accounts |  | 0.0 | [1] | 0.0 |  | 0.0 |
Deductions |  | 6.0 |  | 8.0 | [2] | 5.0 | [2]
Balance at End of Year |  | 21.0 | [1] | 22.0 | [1] | 17.0 |
Valuation allowance for deferred tax assets |  |  |  |  |  |  |
Valuation and Qualifying Accounts |  |  |  |  |  |  |
Balance at Beginning of Year |  | 98.0 |  | 89.0 |  | 23.0 |
Charged to Costs and Expenses |  | 44.0 |  | 11.0 |  | 66.0 |
Charged to Other Accounts |  | 0.0 |  | 2.0 |  | 2.0 |
Deductions | [2] | 13.0 |  | 4.0 |  | 2.0 |
Balance at End of Year |  | $ 129.0 |  | $ 98.0 |  | $ 89.0 |
[1] | Includes allowances for current and other long-term receivables.
[2] | Consists of amounts written off for the allowance for doubtful accounts and adjustments resulting from our ability to utilize foreign tax credits, capital losses, or net operating loss carryforwards for which a valuation allowance had previously been recorded.

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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480738/235-10-S50-5 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column B)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-4 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column E)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-4 + Details
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