Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	Mar. 31, 2016	Sep. 30, 2015
Inventories
Raw materials and supplies	$ 57.3	$ 57.8
Work in process	54.9	50.1
Finished products	270.5	224.9
Inventories	382.7	332.8
Other Current Assets
Miscellaneous receivables	51.9	53.8
Deferred income tax benefits	0.0	85.1
Prepaid expenses	69.0	56.9
Value added tax collectible from customers	21.6	19.9
Income taxes receivable	27.1	80.8
Other	11.2	15.4
Other current assets	180.8	311.9
Property, Plant and Equipment
Land	27.9	27.7
Buildings	132.7	131.1
Machinery and equipment	866.8	848.4
Construction in progress	73.9	54.3
Total gross property	1,101.3	1,061.5
Accumulated depreciation	(619.3)	(585.4)
Property, plant and equipment, net	482.0	476.1
Other Current Liabilities
Accrued advertising, sales promotion and allowances	66.0	74.5
Accrued trade allowances	27.9	45.3
Accrued salaries, vacations and incentive compensation	39.4	46.8
Income taxes payable	27.9	25.3
Returns reserve	27.2	50.3
2013 restructuring reserve	22.7	13.7
Spin restructuring reserve	7.7	11.1
Separation accrual	2.0	11.3
Other	128.4	134.1
Other current liabilities	349.2	412.4
Other Liabilities
Pensions and other retirement benefits	141.3	242.7
Deferred compensation	85.1	90.6
Other non-current liabilities	60.8	87.7
Other liabilities	$ 287.2	$ 421.0