RESTRUCTURING COSTS - Restructuring Roll Forward (Details) - Transformation Plan $ in Millions	9 Months Ended
	Mar. 31, 2022 USD ($)
Restructuring Reserve [Roll Forward]
Beginning balance	$ 122.8
Restructuring charges	13.5
Payments	(38.9)
Changes in estimates	(12.0)
Non-cash utilization	(0.8)
Effect of exchange rates	(5.3)
Ending balance	79.3
Severance and Employee Benefits
Restructuring Reserve [Roll Forward]
Beginning balance	122.5
Restructuring charges	13.5
Payments	(38.7)
Changes in estimates	(11.7)
Non-cash utilization	(0.8)
Effect of exchange rates	(5.5)
Ending balance	79.3
Fixed Asset Write-offs
Restructuring Reserve [Roll Forward]
Beginning balance	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
Ending balance	0.0
Other Exit Costs
Restructuring Reserve [Roll Forward]
Beginning balance	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
Ending balance	$ 0.0