RESTRUCTURING COSTS - Restructuring Roll Forward (Details) - Transformation Plan $ in Millions	6 Months Ended
	Dec. 31, 2021 USD ($)
Restructuring Reserve [Roll Forward]
Beginning balance	$ 122.8
Restructuring charges	15.9
Payments	(25.3)
Changes in estimates	(7.6)
Non-cash utilization	(0.8)
Effect of exchange rates	(4.2)
Ending balance	100.8
Severance and Employee Benefits
Restructuring Reserve [Roll Forward]
Beginning balance	122.5
Restructuring charges	15.9
Payments	(25.1)
Changes in estimates	(7.3)
Non-cash utilization	(0.8)
Effect of exchange rates	(4.5)
Ending balance	100.7
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	0.3
Ending balance	$ 0.1