SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Guarantees) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Guarantees
Balance at October 1	$ 28.4	$ 38.1	$ 42.2
Provision for warranties during the period	14.7	9.8	29.2
Warranty reserves acquired	7.1	3.0	(2.6)
Warranty claims incurred during the period	(18.1)	(22.5)	(30.7)
Balance at September 30	$ 32.1	$ 28.4	$ 38.1