v3.26.1
RELATED PARTY TRANSACTIONS (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Dec. 18, 2025
Oct. 01, 2025
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2026
Mar. 31, 2025
Jun. 30, 2025
Related Party Transaction [Line Items]              
Gain on sale     $ (53.2) $ (132.3) $ (359.9) $ (332.8)  
Selling, general and administrative expenses     $ 727.0 777.5 $ 2,363.0 2,382.8  
Wella Company              
Related Party Transaction [Line Items]              
Equity method investment, amount sold (percentage) 25.80%           25.84%
JAB Partners LLP              
Related Party Transaction [Line Items]              
Remaining lease term     5 years   5 years    
Minimum service period   1 year          
Selling, general and administrative expenses     $ 0.4   $ 0.7    
Accrued liabilities     0.4   0.4    
JAB Partners LLP | Performance Guarantee              
Related Party Transaction [Line Items]              
Loss contingency, estimate of possible loss     2.7   2.7    
Wella Company | Related Party Transaction, Other Fees              
Related Party Transaction [Line Items]              
Gain on sale     0.0 0.3 0.7 1.0  
Revenue from related parties     $ 1.6 $ 1.4 $ 4.2 $ 4.4