v3.26.1
CREDIT QUALITY AND THE ALLOWANCE FOR CREDIT LOSSES - Allowance for Credit Loss (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Allowance for Loan and Lease Losses [Roll Forward]          
Allowance for loan and lease losses, beginning of period $ 1,958 $ 1,943 $ 2,014 $ 1,943 $ 2,061
Charge-offs (166)   (201) (349) (435)
Recoveries 31   34 76 68
Net charge-offs (135)   (167) (273) (367)
Provision expense (benefit) for loans and leases 146   161 299 314
Allowance for loan and lease losses, end of period 1,969 1,958 2,008 1,969 2,008
Unfunded lending commitments [Roll Forward]          
Allowance for unfunded lending commitments, beginning of period 227 240 198 240 198
Provision expense (benefit) for unfunded lending commitments (12)   3 (25) 3
Allowance for unfunded lending commitments, end of period 215 227 201 215 201
Total allowance for credit losses, end of period 2,184   2,209 2,184 2,209
Commercial          
Allowance for Loan and Lease Losses [Roll Forward]          
Allowance for loan and lease losses, beginning of period 1,115 1,058 1,148 1,058 1,140
Charge-offs (76)   (93) (167) (178)
Recoveries 5   1 23 5
Net charge-offs (71)   (92) (144) (173)
Provision expense (benefit) for loans and leases 72   50 202 139
Allowance for loan and lease losses, end of period 1,116 1,115 1,106 1,116 1,106
Unfunded lending commitments [Roll Forward]          
Allowance for unfunded lending commitments, beginning of period 189 194 164 194 155
Provision expense (benefit) for unfunded lending commitments (12)   (1) (17) 8
Allowance for unfunded lending commitments, end of period 177 189 163 177 163
Total allowance for credit losses, end of period 1,293   1,269 1,293 1,269
Retail          
Allowance for Loan and Lease Losses [Roll Forward]          
Allowance for loan and lease losses, beginning of period 843 885 866 885 921
Charge-offs (90)   (108) (182) (257)
Recoveries 26   33 53 63
Net charge-offs (64)   (75) (129) (194)
Provision expense (benefit) for loans and leases 74   111 97 175
Allowance for loan and lease losses, end of period 853 843 902 853 902
Unfunded lending commitments [Roll Forward]          
Allowance for unfunded lending commitments, beginning of period 38 46 34 46 43
Provision expense (benefit) for unfunded lending commitments 0   4 (8) (5)
Allowance for unfunded lending commitments, end of period 38 $ 38 38 38 38
Total allowance for credit losses, end of period $ 891   $ 940 $ 891 $ 940