EMPLOYEE BENEFIT PLANS - Fair Value of Plan Assets (Details) - USD ($) $ in Millions	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	$ 130.1	$ 128.2	$ 121.0
International | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	129.9	128.0	120.9
International | Pension Plans | Level 3
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	52.3	56.9	$ 51.4
International | Pension Plans | Recurring
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	130.1	128.2
International | Pension Plans | Recurring | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	77.8	71.3
International | Pension Plans | Recurring | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0.0	0.0
International | Pension Plans | Recurring | Level 3
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	52.3	56.9
International | Pension Plans | Recurring | Equity securities
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	47.2	32.8
International | Pension Plans | Recurring | Equity securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	47.2	32.8
International | Pension Plans | Recurring | Equity securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0.0	0.0
International | Pension Plans | Recurring | Equity securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0.0	0.0
International | Pension Plans | Recurring | Corporate securities
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	30.6	38.2
International | Pension Plans | Recurring | Corporate securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	30.6	38.2
International | Pension Plans | Recurring | Corporate securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0.0	0.0
International | Pension Plans | Recurring | Corporate securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0.0	0.0
International | Pension Plans | Recurring | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0.0	0.3
International | Pension Plans | Recurring | Cash and cash equivalents | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0.0	0.3
International | Pension Plans | Recurring | Cash and cash equivalents | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0.0	0.0
International | Pension Plans | Recurring | Cash and cash equivalents | Level 3
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0.0	0.0
International | Pension Plans | Recurring | Insurance contracts and other
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	52.3	56.9
International | Pension Plans | Recurring | Insurance contracts and other | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0.0	0.0
International | Pension Plans | Recurring | Insurance contracts and other | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0.0	0.0
International | Pension Plans | Recurring | Insurance contracts and other | Level 3
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	$ 52.3	$ 56.9