v3.26.3
DEBT - Senior Secured Credit Facility (Details) - USD ($)
$ in Millions
12 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Debt Instrument [Line Items]    
Gross Amount $ 34,124 $ 29,520
Revolving Credit Facility    
Debt Instrument [Line Items]    
Debt Instrument, Basis Spread on Variable Rate 2.25% 2.25%
Debt Instrument, Unused Portion, Fee, Percent 0.50% 0.50%
Term loans    
Debt Instrument [Line Items]    
Gross Amount $ 12,803 $ 11,124
Revolving Credit Facility    
Debt Instrument [Line Items]    
Maximum borrowing capacity 910 910
Debt Facility, Remaining Borrowing Capacity $ 865 $ 857