EMPLOYEE BENEFIT PLANS - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Net Periodic Benefit Cost Credit Expected Return Loss Statement Of Income Or Comprehensive Income Extensible List Not Disclosed Flag			Expected return on plan assets
Defined Benefit Plan Net Periodic Benefit Cost Credit Amortization Of Prior Service Cost Credit Statement Of Income Or Comprehensive Income Extensible List Not Disclosed Flag			Amortization of prior service (credit) cost
Defined Benefit Plan Net Periodic Benefit Cost Credit Amortization Of Gain Loss Statement Of Income Or Comprehensive Income Extensible List Not Disclosed Flag			Amortization of net (gain) loss
Defined Benefit Plan Net Periodic Benefit Cost Credit Settlement Gain Loss Statement Of Income Or Comprehensive Income Extensible List Not Disclosed Flag			Settlements (gain) loss recognized
Defined Benefit Plan Net Periodic Benefit Cost Credit Curtailment Gain Loss Statement Of Income Or Comprehensive Income Extensible List Not Disclosed Flag			Curtailment (gain) loss recognized
Service cost	$ 5.4	$ 9.9	$ 19.4
Interest cost	13.3	7.2	10.2
Expected return on plan assets	(3.4)	(4.5)	(6.3)
Amortization of prior service (credit) cost	(0.3)	(0.4)	(3.6)
Amortization of net (gain) loss	(6.0)	0.0	1.2
Settlements (gain) loss recognized	0.2	1.8	3.8
Curtailment (gain) loss recognized	(0.7)	(1.3)	(6.9)
Net periodic benefit cost	8.5	12.7	17.8
Other Post-Employment Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.6	0.8	1.0
Interest cost	1.7	0.8	1.3
Expected return on plan assets	0.0	0.0	0.0
Amortization of prior service (credit) cost	(0.2)	(0.3)	(3.3)
Amortization of net (gain) loss	(2.4)	(0.2)	(0.1)
Settlements (gain) loss recognized	0.0	0.0	0.0
Curtailment (gain) loss recognized	0.0	0.0	0.0
Net periodic benefit cost	(0.3)	1.1	(1.1)
United States | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.0	0.0	0.0
Interest cost	0.7	0.5	0.5
Expected return on plan assets	0.0	0.0	0.0
Amortization of prior service (credit) cost	0.0	0.0	0.0
Amortization of net (gain) loss	(2.9)	0.4	1.5
Settlements (gain) loss recognized	0.0	0.0	0.0
Curtailment (gain) loss recognized	0.0	0.0	0.0
Net periodic benefit cost	(2.2)	0.9	2.0
International | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	4.8	9.1	18.4
Interest cost	10.9	5.9	8.4
Expected return on plan assets	(3.4)	(4.5)	(6.3)
Amortization of prior service (credit) cost	(0.1)	(0.1)	(0.3)
Amortization of net (gain) loss	(0.7)	(0.2)	(0.2)
Settlements (gain) loss recognized	0.2	1.8	3.8
Curtailment (gain) loss recognized	(0.7)	(1.3)	(6.9)
Net periodic benefit cost	$ 11.0	$ 10.7	$ 16.9