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Loans and Leases - Accruing And Non-Accruing Loans By Class (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, accruing | $ 61,119 | $ 60,724
Total Accruing | 61,248 | 60,830
Current, non-accruing | 232 | 228
Total Non- Accruing | 505 | 462
Loans and leases | 61,753 | 61,292
30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 119 | 85
Past due, non-accruing | 75 | 30
90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 10 | 21
Past due, non-accruing | 198 | 204
Commercial: | Commercial, financial and industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, accruing | 32,649 | 32,416
Total Accruing | 32,705 | 32,449
Current, non-accruing | 106 | 113
Total Non- Accruing | 206 | 184
Loans and leases | 32,911 | 32,633
Commercial: | Commercial, financial and industrial | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 55 | 32
Past due, non-accruing | 30 | 18
Commercial: | Commercial, financial and industrial | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 1 | 1
Past due, non-accruing | 70 | 53
Commercial: | Commercial, financial and industrial | General C I |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, accruing | 30,287 | 30,398
Total Accruing | 30,343 | 30,430
Current, non-accruing | 102 | 108
Total Non- Accruing | 202 | 179
Loans and leases | 30,545 | 30,609
Nonaccrual, no allowance | 191 | 178
Commercial: | Commercial, financial and industrial | General C I | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 55 | 31
Past due, non-accruing | 30 | 18
Commercial: | Commercial, financial and industrial | General C I | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 1 | 1
Past due, non-accruing | 70 | 53
Commercial: | Commercial, financial and industrial | Loans to mortgage companies |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, accruing | 2,362 | 2,018
Total Accruing | 2,362 | 2,019
Current, non-accruing | 4 | 5
Total Non- Accruing | 4 | 5
Loans and leases | 2,366 | 2,024
Commercial: | Commercial, financial and industrial | Loans to mortgage companies | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 0 | 1
Past due, non-accruing | 0 | 0
Commercial: | Commercial, financial and industrial | Loans to mortgage companies | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 0 | 0
Past due, non-accruing | 0 | 0
Commercial: | Commercial, financial and industrial | Commercial Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual, no allowance | 150 | 129
Commercial: | Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 14,426 | 14,216
Commercial: | Commercial real estate | Commercial Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 14,426 | 14,216
Commercial: | Credit Card and Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 181 | 180
Commercial real estate | Commercial real estate | Commercial Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, accruing | 14,261 | 14,072
Total Accruing | 14,269 | 14,080
Current, non-accruing | 57 | 41
Total Non- Accruing | 157 | 136
Loans and leases | 14,426 | 14,216
Commercial real estate | Commercial real estate | Commercial Real Estate | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 8 | 8
Past due, non-accruing | 28 | 0
Commercial real estate | Commercial real estate | Commercial Real Estate | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 0 | 0
Past due, non-accruing | 72 | 95
Consumer: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 13,645 | 13,650
Consumer: | Consumer Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, accruing | 13,448 | 13,453
Total Accruing | 13,505 | 13,510
Current, non-accruing | 68 | 73
Total Non- Accruing | 140 | 140
Loans and leases | 13,645 | 13,650
Consumer: | Consumer Real Estate | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 51 | 40
Past due, non-accruing | 17 | 12
Consumer: | Consumer Real Estate | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 6 | 17
Past due, non-accruing | 55 | 55
Consumer: | Consumer Real Estate | Home Equity Line of Credit |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, accruing | 2,089 | 2,158
Total Accruing | 2,104 | 2,173
Current, non-accruing | 27 | 30
Total Non- Accruing | 41 | 46
Loans and leases | 2,145 | 2,219
Nonaccrual, no allowance | 4 | 4
Consumer: | Consumer Real Estate | Home Equity Line of Credit | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 12 | 11
Past due, non-accruing | 4 | 6
Consumer: | Consumer Real Estate | Home Equity Line of Credit | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 3 | 4
Past due, non-accruing | 10 | 10
Consumer: | Consumer Real Estate | R E Installment Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, accruing | 11,359 | 11,295
Total Accruing | 11,401 | 11,337
Current, non-accruing | 41 | 43
Total Non- Accruing | 99 | 94
Loans and leases | 11,500 | 11,431
Nonaccrual, no allowance | 9 | 10
Consumer: | Consumer Real Estate | R E Installment Loans | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 39 | 29
Past due, non-accruing | 13 | 6
Consumer: | Consumer Real Estate | R E Installment Loans | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 3 | 13
Past due, non-accruing | 45 | 45
Consumer: | Credit Card and Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, accruing | 761 | 783
Total Accruing | 769 | 791
Current, non-accruing | 1 | 1
Total Non- Accruing | 2 | 2
Loans and leases | 771 | 793
Consumer: | Credit Card and Other | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 5 | 5
Past due, non-accruing | 0 | 0
Consumer: | Credit Card and Other | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 3 | 3
Past due, non-accruing | 1 | 1
Consumer: | Credit Card and Other | Credit card |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, accruing | 267 | 271
Total Accruing | 272 | 277
Current, non-accruing | 0 | 0
Total Non- Accruing | 0 | 0
Loans and leases | 272 | 277
Consumer: | Credit Card and Other | Credit card | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 2 | 3
Past due, non-accruing | 0 | 0
Consumer: | Credit Card and Other | Credit card | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 3 | 3
Past due, non-accruing | 0 | 0
Consumer: | Credit Card and Other | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, accruing | 494 | 512
Total Accruing | 497 | 514
Current, non-accruing | 1 | 1
Total Non- Accruing | 2 | 2
Loans and leases | 499 | 516
Consumer: | Credit Card and Other | Other | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 3 | 2
Past due, non-accruing | 0 | 0
Consumer: | Credit Card and Other | Other | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past due, accruing | 0 | 0
Past due, non-accruing | $ 1 | $ 1

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