v3.26.1
ALLOWANCE FOR CREDIT LOSSES - Allowance Roll-forward (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Financing Receivable, Allowance for Credit Loss [Roll Forward]        
ALLL balance, beginning of period $ 3,243 $ 2,263 $ 2,537 $ 2,244
Loan and lease charge-offs (191) (111) (364) (244)
Recoveries of loans and leases previously charged-off 72 45 134 92
Provision for loan and lease losses 125 134 375 239
Allowance on PCD loans and leases at acquisition     322  
Allowance on purchased seasoned loans and leases at acquisition     245  
ALLL balance, end of period 3,249 2,331 3,249 2,331
AULC balance, beginning of period 125 215 206 202
Provision (benefit) for unfunded lending commitments 7 (31) (85) (18)
Allowance for unfunded lending commitments at acquisition     11  
AULC balance, end of period 132 184 132 184
ACL balance, end of period 3,381 2,515 3,381 2,515
Commercial        
Financing Receivable, Allowance for Credit Loss [Roll Forward]        
ALLL balance, beginning of period 2,305 1,520 1,731 1,484
Loan and lease charge-offs (116) (56) (214) (130)
Recoveries of loans and leases previously charged-off 50 25 92 55
Provision for loan and lease losses 100 59 292 139
Allowance on PCD loans and leases at acquisition     268  
Allowance on purchased seasoned loans and leases at acquisition     170  
ALLL balance, end of period 2,339 1,548 2,339 1,548
AULC balance, beginning of period 98 158 145 144
Provision (benefit) for unfunded lending commitments 4 (34) (46) (20)
Allowance for unfunded lending commitments at acquisition     3  
AULC balance, end of period 102 124 102 124
ACL balance, end of period 2,441 1,672 2,441 1,672
Commercial | Cadence        
Financing Receivable, Allowance for Credit Loss [Roll Forward]        
Loan and lease charge-offs     (23)  
ALLL balance, end of period 438   438  
Consumer        
Financing Receivable, Allowance for Credit Loss [Roll Forward]        
ALLL balance, beginning of period 938 743 806 760
Loan and lease charge-offs (75) (55) (150) (114)
Recoveries of loans and leases previously charged-off 22 20 42 37
Provision for loan and lease losses 25 75 83 100
Allowance on PCD loans and leases at acquisition     54  
Allowance on purchased seasoned loans and leases at acquisition     75  
ALLL balance, end of period 910 783 910 783
AULC balance, beginning of period 27 57 61 58
Provision (benefit) for unfunded lending commitments 3 3 (39) 2
Allowance for unfunded lending commitments at acquisition     8  
AULC balance, end of period 30 60 30 60
ACL balance, end of period 940 $ 843 940 $ 843
Consumer | Cadence        
Financing Receivable, Allowance for Credit Loss [Roll Forward]        
ALLL balance, end of period $ 129   $ 129