RESTRUCTURING COSTS - Restructuring Roll Forward (Details) - Transformation Plan $ in Millions	12 Months Ended
	Jun. 30, 2022 USD ($)
Restructuring Reserve [Roll Forward]
Balance—July 1, 2021	$ 122.8
Restructuring charges	18.7
Payments	(51.7)
Changes in estimates	(25.2)
Non-cash utilization	(0.8)
Effect of exchange rates	(8.6)
Balance—June 30, 2022	55.2
Severance and Employee Benefits
Restructuring Reserve [Roll Forward]
Balance—July 1, 2021	122.5
Restructuring charges	18.7
Payments	(51.5)
Changes in estimates	(24.9)
Non-cash utilization	(0.8)
Effect of exchange rates	(8.8)
Balance—June 30, 2022	55.2
Fixed Asset Write-offs
Restructuring Reserve [Roll Forward]
Balance—July 1, 2021	0.0
Restructuring charges	0.0
Payments	0.0
Changes in estimates	0.0
Non-cash utilization	0.0
Effect of exchange rates	0.0
Balance—June 30, 2022	0.0
Other Exit Costs
Restructuring Reserve [Roll Forward]
Balance—July 1, 2021	0.3
Restructuring charges	0.0
Payments	(0.2)
Changes in estimates	(0.3)
Non-cash utilization	0.0
Effect of exchange rates	0.2
Balance—June 30, 2022	$ 0.0