Supplemental Financial Statement Information (Supplemental Balance Sheet Information) (Details) - USD ($) $ in Millions	Sep. 30, 2022	Sep. 30, 2021
Inventories
Raw materials and supplies	$ 115.9	$ 118.8
Work in process	201.6	206.3
Finished products	454.1	403.2
Total inventories	771.6	728.3
Other Current Assets
Miscellaneous receivables	23.8	21.4
Due from Related Parties, Current	6.1	16.3
Prepaid expenses	90.9	98.3
Value added tax collectible from customers	27.7	28.3
Other	42.9	15.1
Total other current assets	191.4	179.4
Property, plant and equipment
Land	14.4	14.4
Buildings	120.7	121.4
Machinery and equipment	828.2	822.9
Construction in progress	50.1	62.4
Finance leases	39.0	52.7
Total gross property	1,052.4	1,073.8
Accumulated depreciation	(690.3)	(690.9)
Total property, plant and equipment, net	362.1	382.9
Other Current Liabilities
Accrued advertising, sales promotion and allowances	13.4	19.5
Accrued trade promotions	57.7	57.3
Accrued Freight and warehousing	37.2	26.8
Accrued salaries, vacations and incentive compensation	60.6	65.4
Accrued interest expense	20.5	16.5
Restructuring reserve	1.7	5.7
Income taxes payable	36.7	30.3
Other	106.1	135.3
Total other current liabilities	333.9	356.8
Other Liabilities
Pensions and other retirement benefits	49.3	66.2
Deferred compensation	19.8	25.1
Mandatory transition tax	16.7	16.7
Other non-current liabilities	52.3	70.4
Total other liabilities	$ 138.1	$ 178.4