Annual report pursuant to Section 13 and 15(d)

Outstanding Loans and Leases and Allowance for Credit Losses - Consumer Real Estate - Modification Programs (Details)

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Outstanding Loans and Leases and Allowance for Credit Losses - Consumer Real Estate - Modification Programs (Details) - Consumer real estate - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Financing Receivable, Modified [Line Items]    
Total modifications $ 1,206 $ 865
Modifications under government programs    
Financing Receivable, Modified [Line Items]    
Total modifications 2 4
Modifications under proprietary programs    
Financing Receivable, Modified [Line Items]    
Total modifications 1,100 774
Loans discharged in Chapter 7 bankruptcy    
Financing Receivable, Modified [Line Items]    
Total modifications 14 33
Trial modifications    
Financing Receivable, Modified [Line Items]    
Total modifications $ 90 $ 54