Quarterly report pursuant to Section 13 or 15(d)

Outstanding Loans and Leases and Allowance for Credit Losses - Consumer Real Estate - TDRs Entered into During the Period (Details)

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Outstanding Loans and Leases and Allowance for Credit Losses - Consumer Real Estate - TDRs Entered into During the Period (Details) - Consumer real estate - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Unpaid Principal Balance $ 677 $ 581
Carrying Value $ 614 $ 513
Pre-Modification Interest Rate 3.52% 3.49%
Post-Modification Interest Rate 3.37% 3.48%
Residential Mortgage    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Unpaid Principal Balance $ 585 $ 519
Carrying Value $ 539 $ 464
Pre-Modification Interest Rate 3.50% 3.50%
Post-Modification Interest Rate 3.33% 3.48%
Home equity    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Unpaid Principal Balance $ 92 $ 62
Carrying Value $ 75 $ 49
Pre-Modification Interest Rate 3.62% 3.43%
Post-Modification Interest Rate 3.63% 3.44%