v3.26.3
LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Performance of Modified Loans (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Sep. 30, 2025
Current    
Financing Receivable, Modified [Line Items]    
Amortized Cost $ 2,934 $ 2,121
30-89 DPD    
Financing Receivable, Modified [Line Items]    
Amortized Cost 556 448
90+ DPD    
Financing Receivable, Modified [Line Items]    
Amortized Cost 122 141
Commercial | CRE | Current    
Financing Receivable, Modified [Line Items]    
Amortized Cost 1,252 880
Commercial | CRE | 30-89 DPD    
Financing Receivable, Modified [Line Items]    
Amortized Cost 0 0
Commercial | CRE | 90+ DPD    
Financing Receivable, Modified [Line Items]    
Amortized Cost 34 83
Commercial | C&I loans | Current    
Financing Receivable, Modified [Line Items]    
Amortized Cost 442 142
Commercial | C&I loans | 30-89 DPD    
Financing Receivable, Modified [Line Items]    
Amortized Cost 7 2
Commercial | C&I loans | 90+ DPD    
Financing Receivable, Modified [Line Items]    
Amortized Cost 20 14
Commercial | Multifamily loans | Current    
Financing Receivable, Modified [Line Items]    
Amortized Cost 314 216
Commercial | Multifamily loans | 30-89 DPD    
Financing Receivable, Modified [Line Items]    
Amortized Cost 45 12
Commercial | Multifamily loans | 90+ DPD    
Financing Receivable, Modified [Line Items]    
Amortized Cost 18 0
Consumer | Residential mortgages | Current    
Financing Receivable, Modified [Line Items]    
Amortized Cost 7 1
Consumer | Residential mortgages | 30-89 DPD    
Financing Receivable, Modified [Line Items]    
Amortized Cost 2 0
Consumer | Residential mortgages | 90+ DPD    
Financing Receivable, Modified [Line Items]    
Amortized Cost 1 0
Consumer | Home equity loans and lines of credit | Current    
Financing Receivable, Modified [Line Items]    
Amortized Cost 2 2
Consumer | Home equity loans and lines of credit | 30-89 DPD    
Financing Receivable, Modified [Line Items]    
Amortized Cost 0 0
Consumer | Home equity loans and lines of credit | 90+ DPD    
Financing Receivable, Modified [Line Items]    
Amortized Cost 1 1
Consumer | RICs and auto loans | Current    
Financing Receivable, Modified [Line Items]    
Amortized Cost 917 880
Consumer | RICs and auto loans | 30-89 DPD    
Financing Receivable, Modified [Line Items]    
Amortized Cost 502 434
Consumer | RICs and auto loans | 90+ DPD    
Financing Receivable, Modified [Line Items]    
Amortized Cost $ 48 $ 43