v3.26.1
Debt (Term Loan Facility) (Details)
1 Months Ended 3 Months Ended 12 Months Ended
Sep. 15, 2025
USD ($)
Sep. 14, 2025
Mar. 31, 2025
USD ($)
Sep. 30, 2025
USD ($)
Mar. 31, 2026
USD ($)
Mar. 31, 2025
USD ($)
Mar. 31, 2024
USD ($)
Debt Instrument [Line Items]              
Loss on extinguishment of debt, net         $ 3,000,000 $ 7,000,000 $ 5,000,000
Secured Debt | 2025 Term Loan              
Debt Instrument [Line Items]              
Maximum borrowing capacity     $ 1,250,000,000     1,250,000,000  
Variable rate 1.75% 2.00%          
Extinguishment of debt $ 65,000,000            
Modification amount $ 1,180,000,000            
Loss on extinguishment of debt, net       $ 2,000,000      
Proceeds from lines of credit     1,250,000,000        
Debt issuance costs, gross     $ 16,000,000     16,000,000  
Quarterly amortization payments, percent     0.25%        
Interest rate at period end     1.75%        
Secured Debt | 2025 Term Loan | Maximum              
Debt Instrument [Line Items]              
Debt covenant, senior net leverage ratio     3.25        
Secured Debt | 2025 Term Loan | If Additional Term Loans to be Issued              
Debt Instrument [Line Items]              
Maximum borrowing capacity     $ 1,725,000,000     $ 1,725,000,000  
Consolidated EBIDTA, percent     100.00%     100.00%  
Secured Debt | 2023 Term Loans              
Debt Instrument [Line Items]              
Extinguishment of debt     $ 741,000,000        
Secured Debt | 2021 Term Loans              
Debt Instrument [Line Items]              
Extinguishment of debt     $ 481,000,000