v3.26.1
Other Liabilities (Detail) - USD ($)
$ in Millions
Jun. 30, 2026
Mar. 31, 2026
Other Liabilities [Line Items]    
Dealer payables $ 261 $ 246
Accrued interest expense 562 451
Accounts payable and accrued expenses 357 349
Lease security deposits 44 44
Unearned income, operating leases 306 310
Operating lease liabilities $ 45 $ 47
Operating Lease, Liability, Statement of Financial Position [Extensible List] Total Total
Uncertain tax positions $ 1 $ 1
Dividend payable 0 599
Other liabilities 9 12
Nonrelated Party and Affiliated Entity    
Other Liabilities [Line Items]    
Total $ 1,585 $ 2,059