v3.26.1
OTHER BORROWINGS, Credit Facility (Details) - Revolving Credit Facility - The Credit Facility - Line of credit - USD ($)
6 Months Ended
Mar. 31, 2026
Sep. 30, 2025
Debt Instrument [Line Items]    
Revolving credit agreement maximum borrowing capacity $ 1,000,000,000  
Revolving credit agreement, borrowings outstanding $ 0 $ 0
Revolving credit agreement, facility fee percentage 0.125%