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Loans and Related Allowance for Credit Losses (Modified, Amortized Cost Basis) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | $ 2,925 | $ 2,270
% of Loan Class | 0.92% | 0.71%
Unfunded lending related commitments | $ 900 | $ 400
Interest Rate Reduction |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 14 | 62
Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 1,967 | 1,506
Payment Delay |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 225 | 170
Repayment Plan |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 70 | 67
Interest Rate Reduction and Payment Delay |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 15 | 14
Interest Rate Reduction and Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 117 | 23
Payment Delay and Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 386 | 173
Other |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 131 | 255
Commercial and industrial | Interest Rate Reduction |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 140 | 45
Commercial and industrial | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 1,260 | 857
Commercial and industrial | Payment Delay |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 203 | 235
Commercial real estate | Interest Rate Reduction |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified |  | 47
Commercial real estate | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 1,196 | 833
Commercial real estate | Payment Delay |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 326 | 17
Equipment lease financing | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 2 |
Residential real estate | Interest Rate Reduction |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 6 | 7
Residential real estate | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 7 | 6
Residential real estate | Payment Delay |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 84 | 95
Home equity | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified |  | 1
Home equity | Payment Delay |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 13 | 10
Education | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 5 | 5
Total commercial lending |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | $ 2,721 | $ 2,066
% of Loan Class | 1.26% | 0.94%
Total commercial lending | Interest Rate Reduction |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | $ 14 | $ 60
Total commercial lending | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 1,961 | 1,499
Total commercial lending | Payment Delay |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 128 | 65
Total commercial lending | Interest Rate Reduction and Payment Delay |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 15 | 14
Total commercial lending | Interest Rate Reduction and Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 111 | 18
Total commercial lending | Payment Delay and Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 386 | 173
Total commercial lending | Other |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 106 | 237
Total commercial lending | Commercial and industrial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | $ 1,429 | $ 1,099
% of Loan Class | 0.81% | 0.62%
Total commercial lending | Commercial and industrial | Interest Rate Reduction |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | $ 14 | $ 13
Total commercial lending | Commercial and industrial | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 995 | 683
Total commercial lending | Commercial and industrial | Payment Delay |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 34 | 65
Total commercial lending | Commercial and industrial | Interest Rate Reduction and Payment Delay |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 15 | 14
Total commercial lending | Commercial and industrial | Interest Rate Reduction and Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 111 | 18
Total commercial lending | Commercial and industrial | Payment Delay and Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 154 | 156
Total commercial lending | Commercial and industrial | Other |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 106 | 150
Total commercial lending | Commercial real estate |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | $ 1,290 | $ 967
% of Loan Class | 3.84% | 2.73%
Total commercial lending | Commercial real estate | Interest Rate Reduction |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified |  | $ 47
Total commercial lending | Commercial real estate | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | $ 964 | 816
Total commercial lending | Commercial real estate | Payment Delay |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 94 |
Total commercial lending | Commercial real estate | Payment Delay and Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 232 | 17
Total commercial lending | Commercial real estate | Other |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified |  | 87
Total commercial lending | Equipment lease financing |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | $ 2 |
% of Loan Class | 0.03% |
Total commercial lending | Equipment lease financing | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | $ 2 |
Total consumer lending |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | $ 204 | $ 204
% of Loan Class | 0.20% | 0.20%
Total consumer lending | Interest Rate Reduction |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified |  | $ 2
Total consumer lending | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | $ 6 | 7
Total consumer lending | Payment Delay |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 97 | 105
Total consumer lending | Repayment Plan |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 70 | 67
Total consumer lending | Interest Rate Reduction and Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 6 | 5
Total consumer lending | Payment Delay and Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified |  |
Total consumer lending | Other |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 25 | 18
Total consumer lending | Residential real estate |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | $ 98 | $ 109
% of Loan Class | 0.21% | 0.23%
Total consumer lending | Residential real estate | Interest Rate Reduction |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified |  | $ 2
Total consumer lending | Residential real estate | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | $ 1 | 1
Total consumer lending | Residential real estate | Payment Delay |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 84 | 95
Total consumer lending | Residential real estate | Interest Rate Reduction and Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 6 | 5
Total consumer lending | Residential real estate | Other |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 7 | 6
Total consumer lending | Home equity |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | $ 38 | $ 31
% of Loan Class | 0.15% | 0.12%
Total consumer lending | Home equity | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified |  | $ 1
Total consumer lending | Home equity | Payment Delay |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 13 | 10
Total consumer lending | Home equity | Repayment Plan |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 7 | 8
Total consumer lending | Home equity | Other |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 18 | 12
Total consumer lending | Credit card |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | $ 62 | $ 58
% of Loan Class | 0.90% | 0.81%
Total consumer lending | Credit card | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified |  |
Total consumer lending | Credit card | Repayment Plan |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | 62 | $ 58
Total consumer lending | Education |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | $ 5 | $ 5
% of Loan Class | 0.31% | 0.26%
Total consumer lending | Education | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | $ 5 | $ 5
Total consumer lending | Other consumer |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | $ 1 | $ 1
% of Loan Class | 0.02% | 0.02%
Total consumer lending | Other consumer | Repayment Plan |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis, modified | $ 1 | $ 1

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