v3.25.2
Other Liabilities - Components of Other Liabilities (Detail) - USD ($)
$ in Millions
Jun. 30, 2025
Mar. 31, 2025
Other Liabilities [Line Items]    
Dealer payables $ 255 $ 295
Accrued interest expense 510 439
Accounts payable and accrued expenses 353 330
Lease security deposits 47 44
Unearned income, operating leases 300 288
Operating lease liabilities 53 55
Uncertain tax positions 116 114
Other liabilities $ 70 $ 70
Operating Lease, Liability, Statement of Financial Position [Extensible List] Total Total
Nonrelated Party and Affiliated Entity    
Other Liabilities [Line Items]    
Total $ 1,704 $ 1,635