v3.26.1
SHARE-BASED COMPENSATION AND WARRANTS - Narrative (Details)
3 Months Ended 12 Months Ended
Mar. 31, 2026
USD ($)
$ / shares
shares
Mar. 31, 2026
USD ($)
$ / shares
shares
Mar. 31, 2025
USD ($)
$ / shares
shares
Mar. 31, 2024
USD ($)
$ / shares
shares
Aug. 15, 2025
d
$ / shares
shares
Mar. 31, 2023
$ / shares
Share-based compensation            
Share-based payment arrangement, expense, tax benefit | $   $ 15,000,000 $ 14,000,000 $ 0    
August 2025 Warrant            
Share-based compensation            
Number of warrants issued (in shares) 0 0        
Warrant (in usd per share) | $ / shares         $ 25.47  
Adjustment of warrants granted for services | $ $ 7,000,000          
Amazon Com Investment Holdings LLC | August 2025 Warrant            
Share-based compensation            
Number of warrants issued (in shares)         3,859,851  
Exercise price (in usd per share) | $ / shares         $ 51.29  
Exercise price of warrants, trading days | d         30  
Amazon Com Investment Holdings LLC | Additional Available Warrant August 2030            
Share-based compensation            
Warrant expiration period (in years)         2 years  
RSU            
Share-based compensation            
Granted (in shares)   4,227,640 5,747,499 6,162,067    
Unvested RSU awards outstanding, weighted average grant date fair value (in dollars per share) | $ / shares $ 35.67 $ 35.67 $ 24.96 $ 17.73   $ 16.79
RSU With Market Conditions            
Share-based compensation            
Granted (in shares)   200,000        
Unvested RSU awards outstanding, weighted average grant date fair value (in dollars per share) | $ / shares 58.55 $ 58.55        
RSU With Market Conditions | Grant In Fiscal Year 2022            
Share-based compensation            
Number of shares vested (in shares)   2,300,000        
Granted (in shares)     700,000      
RSU With Performance Conditions | Grants In Fiscal Year 2025            
Share-based compensation            
Granted (in shares)   1,000,000.0        
Unvested RSU awards outstanding, weighted average grant date fair value (in dollars per share) | $ / shares 44.30 $ 44.30        
RSU with no performance or market conditions            
Share-based compensation            
Granted (in shares)   2,000,000.0        
Unvested RSU awards outstanding, weighted average grant date fair value (in dollars per share) | $ / shares $ 44.30 $ 44.30        
2017 Equity Incentive Plan            
Share-based compensation            
Shares available for grants (in shares) 14,800,000 14,800,000        
2017 Equity Incentive Plan | RSU            
Share-based compensation            
Cash consideration to acquire a specified number of ordinary shares in exchange for continued service | $   $ 0        
Vesting period   3 years        
Unrecognized compensation expense | $ $ 188,000,000 $ 188,000,000        
Share weighted-average remaining vesting period   2 years        
Requisite service period   3 years 3 years 3 years    
Equity instruments other than options, aggregate intrinsic value of instruments vested | $   $ 330,000,000 $ 260,000,000 $ 227,000,000    
2017 Equity Incentive Plan | RSU With Market Conditions            
Share-based compensation            
Unrecognized compensation expense | $ 14,000,000 14,000,000        
2017 Equity Incentive Plan | RSU With Performance Conditions            
Share-based compensation            
Unrecognized compensation expense | $ $ 39,000,000 $ 39,000,000