RESTRUCTURING COSTS - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2024	Jun. 30, 2027	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Current Restructuring Actions
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred to date	$ 39.9
Restructuring reserve	36.7				$ 37.9
Current Restructuring Actions | Forecast
Restructuring Cost and Reserve [Line Items]
Payments for restructuring		$ 4.7	$ 15.6	$ 16.4
Transformation Plan
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred to date	214.3
Restructuring reserve	$ 4.7				$ 4.7
Restructuring and related activities, plan term (in years)	4 years
Transformation Plan | Forecast
Restructuring Cost and Reserve [Line Items]
Payments for restructuring			$ 0.9	$ 3.7