Discontinued Operations (Schedule of Carrying Amounts of Assets and Liabilities Classified as Held for Sale on Condensed Consolidated Balance Sheet) (Details) - USD ($) $ in Millions	Dec. 31, 2025	Sep. 30, 2025
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Current assets held for sale	$ 57.0	$ 59.6
Non-current assets held for sale	280.0	321.8
Current liabilities held for sale	4.0	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	48.1	50.9
Other current assets	8.9	8.7
Current assets held for sale	57.0	59.6
Property, plant and equipment, net	73.9	74.3
Goodwill	117.0	154.0
Other intangible assets, net	92.7	93.1
Other assets	0.2	0.4
Allowance for loss on classification as held for sale	(3.8)	0.0
Non-current assets held for sale	280.0	321.8
Total assets held for sale	337.0	381.4
Other current liabilities	4.0	5.2
Current liabilities held for sale	4.0	5.2
Total liabilities held for sale	$ 4.0	$ 5.2