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EMPLOYEE BENEFIT PLANS - Schedule of Pre-Tax Amounts Recognized in AOCI (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Jun. 30, 2025
Defined Benefit Plan Disclosure [Line Items]    
Net actuarial gain (loss) $ 88.3 $ 77.3
Prior service credit (cost) 0.6 0.4
Total recognized in AOC(L)/I 88.9 77.7
Other Post-Employment Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Net actuarial gain (loss) 15.5 17.2
Prior service credit (cost) 0.0 0.0
Total recognized in AOC(L)/I 15.5 17.2
United States | Pension Plans    
Defined Benefit Plan Disclosure [Line Items]    
Net actuarial gain (loss) 0.5 1.1
Prior service credit (cost) 0.0 0.0
Total recognized in AOC(L)/I 0.5 1.1
International | Pension Plans    
Defined Benefit Plan Disclosure [Line Items]    
Net actuarial gain (loss) 72.3 59.0
Prior service credit (cost) 0.6 0.4
Total recognized in AOC(L)/I $ 72.9 $ 59.4