FAIR VALUE MEASUREMENTS (Details) - Reconciliation of Items Carried at Fair Value Using Significant Unobservable Inputs (Level 3) (Acquisition Contingent Consideration Payable [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Acquisition Contingent Consideration Payable [Member]
Beginning balance	$ (106.4)	$ (116.4)
Gain (loss) included in:
Accretion (interest and fair value adjustment)	(4.5)	(2.1)
Ending balance	(110.9)	(118.5)
Net change in unrealized gain (loss) included in earnings related to instruments still held	$ 0	$ 0