EMPLOYEE BENEFIT PLANS - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Defined Benefit Plan Disclosure [Line Items]
Service period	90 days
Percent of company match to plan	100.00%
Percent of employee salary eligible for contribution	6.00%
Curtailment gain	$ 0.1	$ 0.7	$ 1.3
Actuarial loss (gain)	(4.1)	20.7
Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Actuarial loss (gain)	8.6	17.4
Gain (loss) on plan assets	3.7	(1.9)
Other Post-Employment Benefits
Defined Benefit Plan Disclosure [Line Items]
Curtailment gain	0.0	0.0	0.0
Actuarial loss (gain)	4.5	3.3
Expected contributions	2.1
U.S.
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	15.6	13.7	13.6
U.S. | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Curtailment gain	0.0	0.0	0.0
Actuarial loss (gain)	(0.1)	0.8
Accumulated benefit obligation	12.5	13.0
Expected contributions	1.3
International
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	10.9	9.6	9.7
International | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Curtailment gain	0.1	0.7	1.3
Actuarial loss (gain)	(8.5)	16.6
Accumulated benefit obligation	351.9	346.3
Expected contributions	15.9
International | Transformation Plan | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Curtailment gain	0.1	0.7	1.3
Settlement loss related to restructuring activities	0.0	0.2	1.8
International | Turnaround Plan, Current Year Restructuring Actions | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Settlement loss related to restructuring activities	$ 0.0	$ 0.0	$ 1.4