v3.26.1
EMPLOYEE BENEFIT PLANS - Activity in Equity Classified Share Awards (Details) - $ / shares
shares in Millions
 3 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Restricted Stock Units (RSUs)    
Shares    
Beginning balance (in shares) 0.4 0.7
Granted (in shares) 0.2 0.1
Vested (in shares) 0.0 0.0
Forfeited/Repurchased (in shares) (0.3) (0.4)
Ending balance (in shares) 0.3 0.4
Weighted Average Grant Date Fair Value per Share    
Beginning balance (in dollars per share) $ 120.74 $ 107.39
Granted (in dollars per share) 151.78 173.14
Vested (in dollars per share) 0 0
Forfeited/Repurchased (in dollars per share) 107.33 102.20
Ending balance (in dollars per share) $ 151.50 $ 119.86
2016 Incentive Plan | Restricted Stock    
Shares    
Beginning balance (in shares) 3.0 3.7
Granted (in shares) 1.4 1.1
Vested (in shares) (1.5) (1.6)
Forfeited/Repurchased (in shares) (0.1) (0.1)
Ending balance (in shares) 2.8 3.1
Weighted Average Grant Date Fair Value per Share    
Beginning balance (in dollars per share) $ 128.91 $ 99.02
Granted (in dollars per share) 151.53 173.13
Vested (in dollars per share) 111.84 91.74
Forfeited/Repurchased (in dollars per share) 111.72 100.64
Ending balance (in dollars per share) $ 148.79 $ 128.29