RESTRUCTURING COSTS - Restructuring Roll Forward (Details) $ in Millions	9 Months Ended
Mar. 31, 2020 USD ($)
Turnaround Plan
Restructuring Reserve [Roll Forward]
Beginning balance	$ 0.0
Restructuring charges	165.5
Payments	(17.4)
Changes in estimates	(12.9)
Non-cash utilization	0.3
ASC 842 adoption adjustment	(1.5)
Effect of exchange rates	(0.1)
Ending balance	133.9
Global Integration Activities
Restructuring Reserve [Roll Forward]
Beginning balance	67.0
Payments	(25.4)
Changes in estimates	(16.2)
ASC 842 adoption adjustment	(1.5)
Effect of exchange rates	(1.2)
Ending balance	22.7
2018 Restructuring
Restructuring Reserve [Roll Forward]
Beginning balance	17.1
Payments	(8.3)
Changes in estimates	(1.9)
ASC 842 adoption adjustment	(1.2)
Effect of exchange rates	(0.3)
Ending balance	5.4
Severance and Employee Benefits \| Turnaround Plan
Restructuring Reserve [Roll Forward]
Beginning balance	0.0
Restructuring charges	159.6
Payments	(13.5)
Changes in estimates	(12.9)
Non-cash utilization	0.0
ASC 842 adoption adjustment	0.0
Effect of exchange rates	(0.1)
Ending balance	133.1
Severance and Employee Benefits \| Global Integration Activities
Restructuring Reserve [Roll Forward]
Beginning balance	53.7
Payments	(22.1)
Changes in estimates	(10.5)
ASC 842 adoption adjustment	0.0
Effect of exchange rates	(1.2)
Ending balance	19.9
Severance and Employee Benefits \| 2018 Restructuring
Restructuring Reserve [Roll Forward]
Beginning balance	15.5
Payments	(8.2)
Changes in estimates	(1.9)
ASC 842 adoption adjustment	0.0
Effect of exchange rates	(0.3)
Ending balance	5.1
Third-Party Contract Terminations \| Turnaround Plan
Restructuring Reserve [Roll Forward]
Beginning balance	0.0
Restructuring charges	0.1
Payments	0.0
Changes in estimates	0.0
Non-cash utilization	0.0
ASC 842 adoption adjustment	0.0
Effect of exchange rates	0.0
Ending balance	0.1
Third-Party Contract Terminations \| Global Integration Activities
Restructuring Reserve [Roll Forward]
Beginning balance	11.7
Payments	(3.3)
Changes in estimates	(5.6)
ASC 842 adoption adjustment	0.0
Effect of exchange rates	0.0
Ending balance	2.8
Third-Party Contract Terminations \| 2018 Restructuring
Restructuring Reserve [Roll Forward]
Beginning balance	0.1
Payments	(0.1)
Changes in estimates	0.0
ASC 842 adoption adjustment	0.0
Effect of exchange rates	0.0
Ending balance	0.0
Fixed Asset Write-offs \| Turnaround Plan
Restructuring Reserve [Roll Forward]
Beginning balance	0.0
Restructuring charges	(0.3)
Payments	0.0
Changes in estimates	0.0
Non-cash utilization	0.3
ASC 842 adoption adjustment	0.0
Effect of exchange rates	0.0
Ending balance	0.0
Other Exit Costs \| Turnaround Plan
Restructuring Reserve [Roll Forward]
Beginning balance	0.0
Restructuring charges	6.1
Payments	(3.9)
Changes in estimates	0.0
Non-cash utilization	0.0
ASC 842 adoption adjustment	(1.5)
Effect of exchange rates	0.0
Ending balance	0.7
Other Exit Costs \| Global Integration Activities
Restructuring Reserve [Roll Forward]
Beginning balance	1.6
Payments	0.0
Changes in estimates	(0.1)
ASC 842 adoption adjustment	(1.5)
Effect of exchange rates	0.0
Ending balance	0.0
Other Exit Costs \| 2018 Restructuring
Restructuring Reserve [Roll Forward]
Beginning balance	1.5
Payments	0.0
Changes in estimates	0.0
ASC 842 adoption adjustment	(1.2)
Effect of exchange rates	0.0
Ending balance	$ 0.3

Restructuring Reserve, Effect Of New Accounting Principle In Period Of Adoption

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- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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- Definition

Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.

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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.

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Amount of decrease in the reserve for full or partial settlement through consideration other than cash.

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- Definition

Amount of foreign currency translation gain (loss) which decreases (increases) the restructuring reserve.

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