SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Jun. 30, 2021
Accounting Policies [Abstract]
Restricted cash	$ 31.6		$ 31.6		$ 56.9
Effective income tax rate, percentage	0.90%	(177.80%)	23.20%	178.00%
Effective income tax rate reconciliation, preliminary income tax benefit				$ 220.5
Gross unrecognized tax benefits	$ 271.5		$ 271.5		279.9
Unrecognized tax benefits that would impact effective tax rate	151.3		151.3
Unrecognized tax benefits, net	173.9		173.9		181.2
Interest and penalties expense	1.3	$ (1.4)	1.0	$ 0.3
Gross accrued interest and penalties	22.7		22.7		$ 21.7
Reasonably possible decrease in UTBs (up to)	$ 22.2		$ 22.2

Income Tax Examination, Penalties and Interest Expense (Benefit), Accrual (Release)

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Unrecognized Tax Benefits, Liability Including Income Tax Penalties and Interest Accrued

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Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit).

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Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of unrecognized tax benefits.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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