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FINANCIAL INSTRUMENTS (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2012
Designated as Hedging Instrument [Member]
     
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of gain recognized in AOCL (effective portion) $ 3 $ 0 $ 3
Designated as Hedging Instrument [Member] | Cost of Sales [Member]
     
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of gain (loss) reclassified from AOCL into income (effective portion) 1 1 3
Not Designated as Hedging Instrument [Member] | Cost of Sales [Member]
     
Derivative Instruments, Gain (Loss) [Line Items]      
Derivatives not designated as hedging instruments: Amount of gain recognized in income $ 0 $ 0 $ 0