v3.26.1
Commitments and Contingencies - Summary of Maturities of Operating Lease Liabilities (Detail) - USD ($)
$ in Millions
Jun. 30, 2026
Mar. 31, 2026
Commitments and Contingencies Disclosure [Abstract]    
2027 $ 10  
2028 9  
2029 7  
2030 8  
2031 7  
Thereafter 8  
Total undiscounted future lease obligations 49  
Less: imputed interest (4)  
Operating lease liabilities $ 45 $ 47