DETAIL OF CERTAIN FINANCIAL STATEMENT ACCOUNTS - Summary of Balance Sheet Accounts (Detail) - USD ($) $ in Millions	Sep. 30, 2016	Sep. 30, 2015
INVENTORIES:
Finished goods	$ 248.7	$ 218.9
Work-in-progress	56.9	48.3
Raw materials	142.6	128.6
Inventories	448.2	395.8
PREPAID AND OTHER ASSETS:
Deferred tax asset	62.1	78.2
Accounts receivable, non-trade	17.7	10.9
Other	42.5	32.0
Prepaid and other current assets	122.3	121.1
PROPERTY, PLANT AND EQUIPMENT, NET:
Property, plant and equipment, gross	1,104.1	1,038.0
Less: accumulated depreciation	(633.3)	(593.9)
Property, plant and equipment, net	470.8	444.1
OTHER ASSETS:
Unamortized debt issuance costs	16.7	11.3
Loans receivable	90.0	0.0
Other	14.5	13.7
Other assets	121.2	25.0
OTHER CURRENT LIABILITIES:
Payroll and other compensation accruals	72.6	56.5
Advertising and promotional accruals	65.8	67.0
Other	103.8	127.7
Other current liabilities	242.2	251.2
OTHER NON-CURRENT LIABILITIES:
Accrued pension and postretirement liabilities	94.8	92.5
Deferred tax liabilities	219.1	125.4
Other	36.4	32.6
Other non-current liabilities	350.3	250.5
Land and improvements
PROPERTY, PLANT AND EQUIPMENT, NET:
Property, plant and equipment, gross	113.0	96.5
Buildings
PROPERTY, PLANT AND EQUIPMENT, NET:
Property, plant and equipment, gross	249.1	219.7
Machinery and equipment
PROPERTY, PLANT AND EQUIPMENT, NET:
Property, plant and equipment, gross	552.2	538.3
Furniture and fixtures
PROPERTY, PLANT AND EQUIPMENT, NET:
Property, plant and equipment, gross	39.8	36.8
Software
PROPERTY, PLANT AND EQUIPMENT, NET:
Property, plant and equipment, gross	114.8	111.5
Aircraft
PROPERTY, PLANT AND EQUIPMENT, NET:
Property, plant and equipment, gross	6.7	6.7
Construction in progress
PROPERTY, PLANT AND EQUIPMENT, NET:
Property, plant and equipment, gross	$ 28.5	$ 28.5