Discontinued Operations - Sales from Global Products (Details) - Discontinued Operations, Held-for-sale - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenues	$ 0.0	$ 696.2	$ 1,174.4	$ 1,953.4
Global Products
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenues	$ 0.0	$ 56.6	$ 89.7	$ 153.5