Quarterly report pursuant to Section 13 or 15(d)

Outstanding Loans and Leases and Allowance for Credit Losses - Allowance by Portfolio Segment (Details)

v3.23.1
Outstanding Loans and Leases and Allowance for Credit Losses - Allowance by Portfolio Segment (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]      
Allowance for loan and lease losses, beginning balance $ 12,682 $ 12,387 $ 12,387
Loans and leases charged off (1,056) (734)  
Recoveries of loans and leases previously charged off 249 342  
Net charge-offs (807) (392)  
Provision for loan and lease losses 900 108  
Other (18) 1  
Allowance for loan and lease losses, ending balance 12,514 12,104 12,682
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]      
Reserve for unfunded lending commitments, beginning balance 1,540 1,456 1,456
Provision for unfunded lending commitments (103) (78)  
Other   1  
Reserve for unfunded lending commitments, ending balance 1,437 1,379 1,540
Allowance for credit losses 13,951 13,483  
Cumulative Effect, Period of Adoption, Adjustment      
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]      
Allowance for loan and lease losses, beginning balance (243)    
Allowance for loan and lease losses, ending balance     (243)
Cumulative Effect, Period of Adoption, Adjusted Balance      
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]      
Allowance for loan and lease losses, beginning balance 12,439    
Allowance for loan and lease losses, ending balance     12,439
Consumer real estate      
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]      
Allowance for loan and lease losses, beginning balance 420 557 557
Loans and leases charged off (14) (23)  
Recoveries of loans and leases previously charged off 25 63  
Net charge-offs 11 40  
Provision for loan and lease losses 34 (126)  
Other 5 2  
Allowance for loan and lease losses, ending balance 403 473 420
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]      
Reserve for unfunded lending commitments, beginning balance 94 96 96
Provision for unfunded lending commitments (1) (6)  
Other   1  
Reserve for unfunded lending commitments, ending balance 93 91 94
Allowance for credit losses 496 564  
Consumer real estate | Cumulative Effect, Period of Adoption, Adjustment      
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]      
Allowance for loan and lease losses, beginning balance (67)    
Allowance for loan and lease losses, ending balance     (67)
Consumer real estate | Cumulative Effect, Period of Adoption, Adjusted Balance      
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]      
Allowance for loan and lease losses, beginning balance 353    
Allowance for loan and lease losses, ending balance     353
Credit card and other consumer      
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]      
Allowance for loan and lease losses, beginning balance 6,817 6,476 6,476
Loans and leases charged off (861) (619)  
Recoveries of loans and leases previously charged off 197 239  
Net charge-offs (664) (380)  
Provision for loan and lease losses 913 146  
Other 1 0  
Allowance for loan and lease losses, ending balance 6,958 6,242 6,817
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]      
Reserve for unfunded lending commitments, beginning balance 0 0 0
Provision for unfunded lending commitments 0 0  
Other   0  
Reserve for unfunded lending commitments, ending balance 0 0 0
Allowance for credit losses 6,958 6,242  
Credit card and other consumer | Cumulative Effect, Period of Adoption, Adjustment      
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]      
Allowance for loan and lease losses, beginning balance (109)    
Allowance for loan and lease losses, ending balance     (109)
Credit card and other consumer | Cumulative Effect, Period of Adoption, Adjusted Balance      
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]      
Allowance for loan and lease losses, beginning balance 6,708    
Allowance for loan and lease losses, ending balance     6,708
Commercial      
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]      
Allowance for loan and lease losses, beginning balance 5,445 5,354 5,354
Loans and leases charged off (181) (92)  
Recoveries of loans and leases previously charged off 27 40  
Net charge-offs (154) (52)  
Provision for loan and lease losses (47) 88  
Other (24) (1)  
Allowance for loan and lease losses, ending balance 5,153 5,389 5,445
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]      
Reserve for unfunded lending commitments, beginning balance 1,446 1,360 1,360
Provision for unfunded lending commitments (102) (72)  
Other   0  
Reserve for unfunded lending commitments, ending balance 1,344 1,288 1,446
Allowance for credit losses 6,497 $ 6,677  
Commercial | Cumulative Effect, Period of Adoption, Adjustment      
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]      
Allowance for loan and lease losses, beginning balance (67)    
Allowance for loan and lease losses, ending balance     (67)
Commercial | Cumulative Effect, Period of Adoption, Adjusted Balance      
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]      
Allowance for loan and lease losses, beginning balance $ 5,378    
Allowance for loan and lease losses, ending balance     $ 5,378