DERIVATIVE INSTRUMENTS - Schedule of amount of gains and losses recognized in other comprehensive income (loss) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Derivative [Line Items]
Net investment hedges	$ (40.1)	$ 22.1	$ 5.5	$ 12.2
Foreign exchange forward contracts
Derivative [Line Items]
Gain (Loss) Recognized in OCI	(1.3)	0.4	(0.2)	0.4
Interest rate swap contracts
Derivative [Line Items]
Gain (Loss) Recognized in OCI	0.0	0.0	0.0	(0.1)
Cross-currency swap contracts
Derivative [Line Items]
Gain (Loss) Recognized in OCI	$ (9.0)	$ 0.0	$ (9.0)	$ 0.0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480237/815-40-50-5

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Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-11

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
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-Section 50
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-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 20
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-Section 45
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
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-Section 45
-Paragraph 10A
-Subparagraph (d)
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Amount, before tax and reclassification, of gain (loss) from derivative designated and qualifying as net investment hedge.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 10
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