FAIR VALUE MEASUREMENTS (Details) - Financial Assets (Liabilities) Carried at Fair Value (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Sep. 30, 2013
Money market funds	$ 69.1	$ 168.0
Investment securities	0	28.8
Derivative assets	65.8	74.6
Derivative liabilities	(68.7)	(72.2)
Acquisition contingent consideration payable	(55.8)	(106.4)
Fair Value, Inputs, Level 1 [Member]
Money market funds	69.1	168.0
Investment securities		0
Derivative assets	0	0
Derivative liabilities	0	0
Acquisition contingent consideration payable	0	0
Fair Value, Inputs, Level 2 [Member]
Money market funds	0	0
Investment securities		28.8
Derivative assets	65.8	74.6
Derivative liabilities	(68.7)	(72.2)
Acquisition contingent consideration payable	0	0
Fair Value, Inputs, Level 3 [Member]
Money market funds	0	0
Investment securities		0
Derivative assets	0	0
Derivative liabilities	0	0
Acquisition contingent consideration payable	$ (55.8)	$ (106.4)