DERIVATIVE INSTRUMENTS - Gains and Losses Recognized in OCI (Details) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Cash flow hedging \| Foreign exchange forward contracts
Derivative [Line Items]
Gain (Loss) Recognized in OCI	$ (0.3)	$ (0.8)	$ 6.0
Cash flow hedging \| Interest rate swap contracts
Derivative [Line Items]
Gain (Loss) Recognized in OCI	27.0	40.8	(36.6)
Net investment hedge
Derivative [Line Items]
Gain (Loss) Recognized in OCI	$ 138.7	$ (21.2)	$ (2.5)

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

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Period Type:	duration