Other Current Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Other Liabilities Disclosure [Abstract]
Unrealized losses on foreign exchange contracts	$ 31.2	$ 16.9
Product warranty obligations	16.5	18.0	$ 20.8
Taxes other than income taxes	65.6	59.8
Accrued interest	18.1	17.8
Income taxes payable	81.1	188.4
Operating lease liabilities	83.3	89.9
Other	107.2	86.8
Other current liabilities	$ 403.0	$ 477.6