DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Effect of Derivative Instruments on OCI and the Condensed, Consolidated Statements of Operations (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Derivatives not designated as Hedging Instruments
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Statement of Operations	$ (10.8)	$ (2.3)
Derivatives not designated as Hedging Instruments | Commodity hedging instruments | Cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Statement of Operations	(2.8)	(10.4)
Derivatives not designated as Hedging Instruments | Currency forward contracts | Other income, net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Statement of Operations	(8.0)	8.1
Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain / (Loss) Recognized in AOCI	(1.5)	(8.6)
Amount of Gain/(Loss) Reclassified From AOCI Into Statement of Operations	(5.8)	(6.5)
Cash Flow Hedging | Interest rate swap agreements
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain / (Loss) Recognized in AOCI	(0.9)	(7.7)
Cash Flow Hedging | Interest rate swap agreements | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified From AOCI Into Statement of Operations	(5.0)	(6.5)
Cash Flow Hedging | Commodity hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain / (Loss) Recognized in AOCI	(0.6)	(0.9)
Cash Flow Hedging | Commodity hedging instruments | Cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified From AOCI Into Statement of Operations	$ (0.8)	$ 0.0