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STOCK-BASED COMPENSATION - Stock Activity (Details) - USD ($)
$ / shares in Units, shares in Millions
12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Mar. 31, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract]      
Aggregate intrinsic value, options outstanding $ 66,300,000    
ZMC | 2017 Management Agreement      
Shares      
Granted (in shares) 873.0 176.0  
Employee Market-Based      
Weighted-average assumptions      
Risk-free interest rate   0.10% 0.20%
Expected stock price volatility   37.30% 40.70%
Expected service period (years)   1 year 6 months 1 year 6 months
Dividends $ 0 $ 0 $ 0
Employee Market-Based | Minimum      
Weighted-average assumptions      
Risk-free interest rate 2.60%    
Expected stock price volatility 35.90%    
Expected service period (years) 1 year 9 months 18 days    
Employee Market-Based | Maximum      
Weighted-average assumptions      
Risk-free interest rate 2.80%    
Expected stock price volatility 37.60%    
Expected service period (years) 2 years 9 months 18 days    
Non-Employee Market-Based      
Weighted-average assumptions      
Risk-free interest rate   0.20% 0.20%
Expected stock price volatility   36.30% 40.80%
Expected service period (years)   1 year 1 year
Dividends $ 0 $ 0 $ 0
Non-Employee Market-Based | Minimum      
Weighted-average assumptions      
Risk-free interest rate 2.40%    
Expected stock price volatility 34.20%    
Expected service period (years) 1 year 9 months 18 days    
Non-Employee Market-Based | Maximum      
Weighted-average assumptions      
Risk-free interest rate 2.80%    
Expected stock price volatility 37.60%    
Expected service period (years) 2 years 9 months 18 days    
Time-based      
Shares      
Non-vested restricted stock units at the beginning of the year (in shares) 1.8    
Granted (in shares) 2.1    
Converted ( in shares) 4.0    
Vested (in shares) (2.2)    
Forfeited (in shares) (0.6)    
Non-vested restricted stock units at the end of the year (in shares) 5.1 1.8  
Weighted Average Fair Value on Grant Date      
Non-vested restricted stock at the beginning of the year (in dollars per share) $ 155.36    
Granted (in dollars per share) 119.17    
Converted (in dollars per share) 116.12    
Vested (in dollars per share) 126.71    
Forfeited (in dollars per share) 121.59    
Non-vested restricted stock at the end of the year (in dollars per share) $ 126.34 $ 155.36  
Time-based | ZMC | 2017 Management Agreement      
Shares      
Granted (in shares) 192.0 51.0  
Market-based | ZMC | 2017 Management Agreement      
Shares      
Granted (in shares) 510.0 93.0  
IP | ZMC | 2017 Management Agreement      
Shares      
Granted (in shares) 18.0 16.0  
Recurrent consumer spending | ZMC | 2017 Management Agreement      
Shares      
Granted (in shares) 153.0 16.0  
Total Performance-based | ZMC | 2017 Management Agreement      
Shares      
Granted (in shares) 171.0 32.0  
Market-based restricted shares      
Shares      
Non-vested restricted stock units at the beginning of the year (in shares) 0.3    
Granted (in shares) 0.5    
Converted ( in shares) 0.1    
Vested (in shares) (0.2)    
Forfeited (in shares) 0.0    
Non-vested restricted stock units at the end of the year (in shares) 0.7 0.3  
Weighted Average Fair Value on Grant Date      
Non-vested restricted stock at the beginning of the year (in dollars per share) $ 242.90    
Granted (in dollars per share) 177.51    
Converted (in dollars per share) 116.12    
Vested (in dollars per share) 209.82    
Forfeited (in dollars per share) 208.56    
Non-vested restricted stock at the end of the year (in dollars per share) $ 183.72 $ 242.90  
Performance Based Awards      
Shares      
Non-vested restricted stock units at the beginning of the year (in shares) 3.6    
Granted (in shares) 1.0    
Converted ( in shares) 0.2    
Vested (in shares) (0.2)    
Forfeited (in shares) (0.7)    
Non-vested restricted stock units at the end of the year (in shares) 3.9 3.6  
Weighted Average Fair Value on Grant Date      
Non-vested restricted stock at the beginning of the year (in dollars per share) $ 112.81    
Granted (in dollars per share) 125.13    
Converted (in dollars per share) 86.09    
Vested (in dollars per share) 117.36    
Forfeited (in dollars per share) 119.63    
Non-vested restricted stock at the end of the year (in dollars per share) $ 113.28 $ 112.81  
Stock Options      
Shares      
Non-vested restricted stock units at the beginning of the year (in shares) 0.0    
Granted (in shares) 0.0    
Converted ( in shares) 1.6    
Vested (in shares) (0.9)    
Forfeited (in shares) 0.0    
Non-vested restricted stock units at the end of the year (in shares) 0.7 0.0  
Exercisable Option - (in shares) 0.7    
Vested and expected to vest (in shares) 0.0    
Weighted Average Fair Value on Grant Date      
Non-vested restricted stock at the beginning of the year (in dollars per share) $ 0    
Granted (in dollars per share) 0    
Converted (in dollars per share) 71.66    
Vested (in dollars per share) 50.50    
Forfeited (in dollars per share) 70.41    
Non-vested restricted stock at the end of the year (in dollars per share) 49.54 $ 0  
Exercisable Option - (in dollars per share) 49.65    
Vested and expected to vest (in dollar per share) $ 43.51    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract]      
Aggregate intrinsic value, options outstanding $ 46,500,000 $ 0  
Aggregate intrinsic value, exercisable options outstanding 45,500,000    
Aggregate intrinsic value, Vested and expected to vest outstanding $ 1,000,000.0    
Weighted average remaining contractual life, options outstanding 4 years 6 months 10 days    
Weighted average remaining contractual life, exercisable options outstanding 4 years 5 months 19 days    
Weighted average remaining contractual life, vested and expected to vest, options outstanding 7 years 5 months 1 day    
Weighted-average assumptions      
Dividends $ 0    
Stock Options | Minimum      
Weighted-average assumptions      
Risk-free interest rate   0.60%  
Expected stock price volatility 36.00%    
Expected service period (years) 1 month 6 days    
Stock Options | Maximum      
Weighted-average assumptions      
Risk-free interest rate   2.80%  
Expected stock price volatility 46.50%    
Expected service period (years) 5 years 1 month 6 days    
Employee Stock Purchase Plan | 2017 Global Employee Stock Purchase Plan      
Weighted-average assumptions      
Expected service period (years) 6 months 6 months  
Dividends $ 0 $ 0  
Employee Stock Purchase Plan | 2017 Global Employee Stock Purchase Plan | Minimum      
Weighted-average assumptions      
Risk-free interest rate 1.40% 0.00%  
Expected stock price volatility 27.70% 27.70%  
Employee Stock Purchase Plan | 2017 Global Employee Stock Purchase Plan | Maximum      
Weighted-average assumptions      
Risk-free interest rate 4.60%    
Expected stock price volatility   33.20%