RESTRUCTURING COSTS - Narrative (Details) - USD ($) $ in Millions	6 Months Ended	9 Months Ended	12 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2023
Current Restructuring Actions
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred to date		$ 37.2
Restructuring reserve		36.3			$ 0.0
Current Restructuring Actions | Forecast
Restructuring Cost and Reserve [Line Items]
Payments for restructuring	$ 2.8		$ 17.9	$ 15.6
Transformation Plan
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred to date		214.6
Restructuring reserve		$ 5.4			$ 10.0
Restructuring and related activities, plan term (in years)		4 years
Transformation Plan | Forecast
Restructuring Cost and Reserve [Line Items]
Payments for restructuring	$ 0.9			$ 4.5