Other Current Liabilities - Schedule of Other Current Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2023	Sep. 30, 2022
Other current liabilities
Unrealized losses on foreign exchange contracts	$ 14.2	$ 31.2
Product warranty obligations	16.0	16.5
Taxes other than income taxes	56.5	65.6
Accrued interest	18.2	18.1
Income taxes payable	120.5	81.1
Operating lease liabilities	84.2	83.3
Other	96.9	107.2
Other current liabilities	$ 406.5	$ 403.0