INCOME TAXES - Unrecognized Tax Benefit Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Beginning balance	$ 303.6	$ 257.9	$ 228.9
Additions based on tax positions related to the current year	49.1	44.1	43.6
Additions for tax positions of prior years	8.3	97.4	0.4
Reductions for tax positions of prior years	(9.6)	(39.9)	0.0
Settlements	(2.7)	(42.3)	(1.5)
Lapses in statutes of limitations	(9.0)	(11.0)	(13.2)
Foreign currency translation	(3.6)	(2.6)	(0.3)
Ending balance	$ 336.1	$ 303.6	$ 257.9

Unrecognized Tax Benefits, Increase (Decrease) Resulting from Foreign Currency Translation

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
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- Definition

Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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- Definition

Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

+ References

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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- Definition

Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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