Annual report pursuant to Section 13 and 15(d)

ALLOWANCE FOR CREDIT LOSSES - Allowance for Credit Losses (Details)

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ALLOWANCE FOR CREDIT LOSSES - Allowance for Credit Losses (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
ALLL balance, beginning of period $ 2,121 $ 2,030 $ 1,814
Loan and lease charge-offs (454) (313) (382)
Recoveries of loans and leases previously charged-off 181 192 167
Provision (benefit) for loan and lease losses 407 212 (1)
Allowance on PCD loans and leases at acquisition     432
ALLL balance, end of period 2,255 2,121 2,030
AULC balance, beginning of period 150 77 52
Provision for unfunded lending commitments (5) 73 26
Unfunded lending commitment losses     (1)
AULC balance, end of period 145 150 77
ACL balance, end of period 2,400 2,271 2,107
Increase in allowance for credit loss 129    
Commercial      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
ALLL balance, beginning of period 1,424 1,462 1,236
Loan and lease charge-offs (270) (129) (243)
Recoveries of loans and leases previously charged-off 112 114 83
Provision (benefit) for loan and lease losses 297 (23) 12
Allowance on PCD loans and leases at acquisition     374
ALLL balance, end of period 1,563 1,424 1,462
AULC balance, beginning of period 71 41 34
Provision for unfunded lending commitments (5) 30 8
Unfunded lending commitment losses     (1)
AULC balance, end of period 66 71 41
ACL balance, end of period 1,629 1,495 1,503
Increase in allowance for credit loss 134    
Loan growth 1,300    
Consumer      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
ALLL balance, beginning of period 697 568 578
Loan and lease charge-offs (184) (184) (139)
Recoveries of loans and leases previously charged-off 69 78 84
Provision (benefit) for loan and lease losses 110 235 (13)
Allowance on PCD loans and leases at acquisition     58
ALLL balance, end of period 692 697 568
AULC balance, beginning of period 79 36 18
Provision for unfunded lending commitments 0 43 18
Unfunded lending commitment losses     0
AULC balance, end of period 79 79 36
ACL balance, end of period $ 771 $ 776 $ 604