Discontinued Operations (Schedule of Carrying Amounts of Assets and Liabilities Classified as Held for Sale on Condensed Consolidated Balance Sheet) (Details) - USD ($) $ in Millions	Mar. 31, 2026	Sep. 30, 2025
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Current assets held for sale	$ 0.0	$ 59.6
Non-current assets held for sale	0.0	321.8
Current liabilities held for sale	$ 0.0	5.2
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Feminine Care
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Inventories		50.9
Other current assets		8.7
Current assets held for sale		59.6
Property, plant and equipment, net		74.3
Goodwill		154.0
Other intangible assets, net		93.1
Other assets		0.4
Non-current assets held for sale		321.8
Total assets held for sale		381.4
Other current liabilities		5.2
Current liabilities held for sale		5.2
Total liabilities held for sale		$ 5.2

Amount classified as assets attributable to disposal group held for sale or disposed of.

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