Supplemental Financial Statement Information (Supplemental Statement of Income Information) (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
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| Financial Statement Related Disclosures [Line Items] | ||||
| Interest income | $ (0.2) | $ (1.4) | $ (2.0) | $ (9.4) |
| Foreign currency exchange gain (loss) | 2.0 | (0.3) | (1.4) | 29.3 |
| Pension cost other than service costs | 0.0 | 1.1 | 0.0 | 3.1 |
| Loss on sale of available-for-sale securities | 0.0 | 0.0 | 0.0 | 1.0 |
| Transition services agreement income | 0.0 | 0.0 | 0.0 | (1.0) |
| Other | 0.1 | (4.4) | 0.1 | (3.5) |
| Total Other items, net | $ 1.9 | $ (5.0) | (3.3) | 19.5 |
| ARGENTINA | ||||
| Financial Statement Related Disclosures [Line Items] | ||||
| Foreign currency exchange gain (loss) | 22.0 | $ 22.0 | ||
| ARGENTINA | Nonoperating Income (Expense) | ||||
| Financial Statement Related Disclosures [Line Items] | ||||
| Foreign currency exchange gain (loss) | $ 21.0 | |||
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- Definition Defined Benefit Plan, Gain (Loss) No definition available.
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- Definition Financial Statement Related Disclosures No definition available.
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- Definition Amount of unrealized and realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before tax, of realized and unrealized gain (loss) from foreign currency transaction. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of interest income earned from interest bearing assets classified as other. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of income (expense) related to nonoperating activities, classified as other. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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