EMPLOYEE BENEFIT PLANS - Pre-tax Amounts Recognized in AOCI (Details) - USD ($) $ in Millions	Jun. 30, 2024	Jun. 30, 2023
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (loss) gain	$ 66.8	$ 74.9
Prior service credit (cost)	0.6	1.1
Total recognized in AOC(L)/I	67.4	76.0
Other Post-Employment Benefits
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (loss) gain	19.1	18.2
Prior service credit (cost)	0.0	0.3
Total recognized in AOC(L)/I	19.1	18.5
United States | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (loss) gain	0.5	1.4
Prior service credit (cost)	0.0	0.0
Total recognized in AOC(L)/I	0.5	1.4
International | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (loss) gain	47.2	55.3
Prior service credit (cost)	0.6	0.8
Total recognized in AOC(L)/I	$ 47.8	$ 56.1