RESTRUCTURING COSTS - Narrative (Details) - USD ($) $ in Millions		3 Months Ended		12 Months Ended
	Jul. 01, 2019	Sep. 30, 2020	Sep. 30, 2019	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Turnaround Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related activities, plan term	4 years
Transformation Plan
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred to date		$ 187.8
Additional restructuring charges		140.0
Restructuring reserve		146.4					$ 132.6
Payments for restructuring		19.6
Transformation Plan | Forecast
Restructuring Cost and Reserve [Line Items]
Payments for restructuring				$ 0.8	$ 26.3	$ 119.3
Global Integration Activities
Restructuring Cost and Reserve [Line Items]
Restructuring reserve		9.1					10.4
Restructuring income (expense)		(0.6)	$ (2.2)
Global Integration Activities | Forecast
Restructuring Cost and Reserve [Line Items]
Payments for restructuring				$ 2.3	1.2	5.6
Other Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring reserve		4.4					$ 4.1
Restructuring income (expense)		$ (0.5)	$ (0.6)
Other Restructuring Plan | Forecast
Restructuring Cost and Reserve [Line Items]
Payments for restructuring					$ 0.2	$ 4.2