Annual report pursuant to Section 13 and 15(d)

Outstanding Loans and Leases and Allowance for Credit Losses - Nonperforming, Credit Quality (Details)

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Outstanding Loans and Leases and Allowance for Credit Losses - Nonperforming, Credit Quality (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Financing Receivable, Past Due [Line Items]    
Nonperforming Loans and Leases $ 4,567 $ 4,952
Accruing past due 90 days or more $ 1,457 $ 2,082
Nonperforming loans and leases, percent outstanding 0.47% 0.54%
Accruing past due 90 days or more, percent outstanding 0.15% 0.23%
Consumer Portfolio Segment    
Financing Receivable, Past Due [Line Items]    
Nonperforming Loans and Leases $ 2,989 $ 2,725
Accruing past due 90 days or more 1,132 1,698
Consumer Portfolio Segment | Residential Mortgage    
Financing Receivable, Past Due [Line Items]    
Nonperforming Loans and Leases 2,284 2,005
Accruing past due 90 days or more 634 762
Consumer Portfolio Segment | Residential Mortgage With Negative Allowance    
Financing Receivable, Past Due [Line Items]    
Nonperforming Loans and Leases 1,950 1,378
Accruing past due 90 days or more 0 0
Consumer Portfolio Segment | Home equity lines of credit    
Financing Receivable, Past Due [Line Items]    
Nonperforming Loans and Leases 630 649
Accruing past due 90 days or more 0 0
Consumer Portfolio Segment | Home Equity Line of Credit With Negative Allowance    
Financing Receivable, Past Due [Line Items]    
Nonperforming Loans and Leases 414 347
Accruing past due 90 days or more 0 0
Consumer Portfolio Segment | Credit card    
Financing Receivable, Past Due [Line Items]    
Accruing past due 90 days or more 487 903
Consumer Portfolio Segment | Direct/indirect consumer    
Financing Receivable, Past Due [Line Items]    
Nonperforming Loans and Leases 75 71
Accruing past due 90 days or more 11 33
Commercial    
Financing Receivable, Past Due [Line Items]    
Nonperforming Loans and Leases 1,578 2,227
Accruing past due 90 days or more 325 384
Commercial | United States    
Financing Receivable, Past Due [Line Items]    
Nonperforming Loans and Leases 825 1,243
Accruing past due 90 days or more 171 228
Commercial | Non United States    
Financing Receivable, Past Due [Line Items]    
Nonperforming Loans and Leases 268 418
Accruing past due 90 days or more 19 10
Commercial | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Nonperforming Loans and Leases 382 404
Accruing past due 90 days or more 40 6
Commercial | Commercial lease financing    
Financing Receivable, Past Due [Line Items]    
Nonperforming Loans and Leases 80 87
Accruing past due 90 days or more 8 25
Commercial | U.S. small business commercial | United States    
Financing Receivable, Past Due [Line Items]    
Nonperforming Loans and Leases 23 75
Accruing past due 90 days or more 87 115
Nonperforming Loans | Residential Mortgage    
Financing Receivable, Past Due [Line Items]    
Nonperforming Loans and Leases 444 537
Accruing past due 90 days or more $ 190 $ 225