Quarterly report pursuant to Section 13 or 15(d)

Outstanding Loans and Leases and Allowance for Credit Losses - Home Equity - Credit Quality Indicators Including Vintage (Details)

v3.23.3
Outstanding Loans and Leases and Allowance for Credit Losses - Home Equity - Credit Quality Indicators Including Vintage (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases $ 1,049,149   $ 1,049,149   $ 1,045,747
Total gross charge-offs 1,187 $ 809 3,367 $ 2,487  
Consumer real estate          
Financing Receivable, Credit Quality Indicator [Line Items]          
Total gross charge-offs 15 $ 13 44 $ 196  
Consumer real estate | Home equity          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 25,492   25,492   26,563
Total gross charge-offs     18   45
Consumer real estate | Home equity | Less than 620          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 662   662   683
Consumer real estate | Home equity | Greater than or equal to 620 and less than 680          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 1,129   1,129   1,190
Consumer real estate | Home equity | Greater than or equal to 680 and less than 740          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 4,237   4,237   4,321
Consumer real estate | Home equity | Greater than or equal to 740          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 19,464   19,464   20,369
Consumer real estate | Home Equity Loans and Reverse Mortgages          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 1,153   1,153   1,361
Total gross charge-offs     2   5
Consumer real estate | Home Equity Loans and Reverse Mortgages | Less than 620          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 134   134   166
Consumer real estate | Home Equity Loans and Reverse Mortgages | Greater than or equal to 620 and less than 680          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 125   125   152
Consumer real estate | Home Equity Loans and Reverse Mortgages | Greater than or equal to 680 and less than 740          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 253   253   312
Consumer real estate | Home Equity Loans and Reverse Mortgages | Greater than or equal to 740          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 641   641   731
Consumer real estate | Reverse Mortgages          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 788   788   937
Consumer real estate | Home Equity Loan no Longer Originated          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 366   366   424
Consumer real estate | Revolving Loans          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans 20,016   20,016   20,019
Gross charge-offs, Revolving Loans     8   24
Consumer real estate | Revolving Loans | Less than 620          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans 228   228   189
Consumer real estate | Revolving Loans | Greater than or equal to 620 and less than 680          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans 568   568   507
Consumer real estate | Revolving Loans | Greater than or equal to 680 and less than 740          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans 2,961   2,961   2,747
Consumer real estate | Revolving Loans | Greater than or equal to 740          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans 16,259   16,259   16,576
Consumer real estate | Revolving Loans Converted to Term Loans          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans Converted to Term Loans 4,323   4,323   5,183
Gross charge-offs, Revolving Loans Converted to Term Loans     8   16
Consumer real estate | Revolving Loans Converted to Term Loans | Less than 620          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans Converted to Term Loans 300   300   328
Consumer real estate | Revolving Loans Converted to Term Loans | Greater than or equal to 620 and less than 680          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans Converted to Term Loans 436   436   531
Consumer real estate | Revolving Loans Converted to Term Loans | Greater than or equal to 680 and less than 740          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans Converted to Term Loans 1,023   1,023   1,262
Consumer real estate | Revolving Loans Converted to Term Loans | Greater than or equal to 740          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans Converted to Term Loans 2,564   2,564   3,062
Less than or equal to 90 percent | Consumer real estate | Home equity          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 25,336   25,336   26,395
Less than or equal to 90 percent | Consumer real estate | Home Equity Loans and Reverse Mortgages          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 1,102   1,102   1,304
Less than or equal to 90 percent | Consumer real estate | Revolving Loans          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans 19,944   19,944   19,960
Less than or equal to 90 percent | Consumer real estate | Revolving Loans Converted to Term Loans          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans Converted to Term Loans 4,290   4,290   5,131
Greater than 90 percent but less than or equal to 100 percent | Consumer real estate | Home equity          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 66   66   62
Greater than 90 percent but less than or equal to 100 percent | Consumer real estate | Home Equity Loans and Reverse Mortgages          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 17   17   20
Greater than 90 percent but less than or equal to 100 percent | Consumer real estate | Revolving Loans          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans 36   36   24
Greater than 90 percent but less than or equal to 100 percent | Consumer real estate | Revolving Loans Converted to Term Loans          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans Converted to Term Loans 13   13   18
Greater than 100 percent | Consumer real estate | Home equity          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 90   90   106
Greater than 100 percent | Consumer real estate | Home Equity Loans and Reverse Mortgages          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 34   34   37
Greater than 100 percent | Consumer real estate | Revolving Loans          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans 36   36   35
Greater than 100 percent | Consumer real estate | Revolving Loans Converted to Term Loans          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans Converted to Term Loans $ 20   $ 20   $ 34