Quarterly report [Sections 13 or 15(d)]

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

v3.25.2
Outstanding Loans and Leases and Allowance for Credit Losses - Home Equity - Credit Quality Indicators Including Vintage (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases $ 1,147,056   $ 1,147,056   $ 1,095,835
Total gross charge-offs 1,824 $ 1,779 3,557 $ 3,517  
Consumer real estate          
Financing Receivable, Credit Quality Indicator [Line Items]          
Total gross charge-offs 14 $ 8 20 $ 19  
Consumer real estate | Home equity          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 26,142   26,142   25,737
Total gross charge-offs     8   21
Consumer real estate | Home equity | Less than 620          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 670   670   645
Consumer real estate | Home equity | Greater than or equal to 620 and less than 660          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 593   593   577
Consumer real estate | Home equity | Greater than or equal to 660 and less than 740          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 4,875   4,875   4,911
Consumer real estate | Home equity | Greater than or equal to 740          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 20,004   20,004   19,604
Consumer real estate | Home Equity Loans and Reverse Mortgages          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 736   736   787
Total gross charge-offs     0   6
Consumer real estate | Home Equity Loans and Reverse Mortgages | Less than 620          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 72   72   72
Consumer real estate | Home Equity Loans and Reverse Mortgages | Greater than or equal to 620 and less than 660          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 44   44   46
Consumer real estate | Home Equity Loans and Reverse Mortgages | Greater than or equal to 660 and less than 740          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 180   180   198
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 440   440   471
Consumer real estate | Reverse Mortgages          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 472   472   500
Consumer real estate | Home Equity Loan no Longer Originated          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 264   264   287
Consumer real estate | Revolving Loans          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans 22,181   22,181   21,526
Gross charge-offs, Revolving Loans     5   9
Consumer real estate | Revolving Loans | Less than 620          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans 353   353   320
Consumer real estate | Revolving Loans | Greater than or equal to 620 and less than 660          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans 367   367   339
Consumer real estate | Revolving Loans | Greater than or equal to 660 and less than 740          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans 3,831   3,831   3,779
Consumer real estate | Revolving Loans | Greater than or equal to 740          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans 17,630   17,630   17,088
Consumer real estate | Revolving Loans Converted to Term Loans          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans Converted to Term Loans 3,225   3,225   3,424
Gross charge-offs, Revolving Loans Converted to Term Loans     3   6
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 245   245   253
Consumer real estate | Revolving Loans Converted to Term Loans | Greater than or equal to 620 and less than 660          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans Converted to Term Loans 182   182   192
Consumer real estate | Revolving Loans Converted to Term Loans | Greater than or equal to 660 and less than 740          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans Converted to Term Loans 864   864   934
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 1,934   1,934   2,045
Less than or equal to 90 percent | Consumer real estate | Home equity          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 26,014   26,014   25,638
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 729   729   780
Less than or equal to 90 percent | Consumer real estate | Revolving Loans          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans 22,075   22,075   21,450
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 3,210   3,210   3,408
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 65   65   51
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 4   4   4
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 56   56   42
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 5   5   5
Greater than 100 percent | Consumer real estate | Home equity          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 63   63   48
Greater than 100 percent | Consumer real estate | Home Equity Loans and Reverse Mortgages          
Financing Receivable, Credit Quality Indicator [Line Items]          
Loans and leases 3   3   3
Greater than 100 percent | Consumer real estate | Revolving Loans          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving Loans 50   50   34
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 $ 10   $ 10   $ 11