DERIVATIVE INSTRUMENTS - Derivatives Not Designated as Hedging (Details) - Foreign exchange forward contracts - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Selling, general and administrative expenses
Derivative [Line Items]
Gain (loss) recognized in operations	$ 0.0	$ (1.1)	$ 0.1	$ (1.6)
Interest expense, net
Derivative [Line Items]
Gain (loss) recognized in operations	7.5	(14.5)	23.7	(3.2)
Other expense, net
Derivative [Line Items]
Gain (loss) recognized in operations	$ (0.1)	$ 1.0	$ (0.5)	$ 0.7

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4CC
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL109998890-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration