v3.26.1
SHARE-BASED COMPENSATION PLANS - Performance Restricted Stock Units Narrative (Details) - USD ($)
shares in Millions, $ in Millions
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total share-based compensation (income) expense $ 46.3 $ 50.0 $ 88.8
Performance Restricted Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total share-based compensation (income) expense 0.3 (3.5) 10.7
Total intrinsic value of restricted shares vested and settled 4.7 0.0 0.0
Performance Restricted Stock Units | Chief Executive Officer      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total share-based compensation (income) expense $ (1.7) $ (3.7) $ 5.4
Performance Restricted Stock Units | Omnibus Long-Term Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted (in shares) 0.0 4.1 4.0