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Loans and Related Allowance for Credit Losses (Modified, Amortized Cost Basis) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | $ 1,033 | $ 829 | $ 2,191 | $ 2,686
% of Loan Class | 0.32% | 0.26% | 0.67% | 0.84%
Unfunded lending related commitments | $ 700 | $ 500 | $ 700 | $ 500
Interest Rate Reduction |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 27
Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 667 | 626 | 1,619 | 1,858
Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 149 | 137 | 227 | 212
Repayment Plan |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 18 | 22 | 50 | 58
Payment Delay and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 26 | 6 | 46 | 304
Interest Rate Reduction and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 51 | 12 | 56 | 107
Interest Rate Reduction and Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 15
Interest Rate Reduction, Payment Delay, and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 12 | 0
Other |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 122 | 26 | 181 | 105
Commercial and industrial | Interest Rate Reduction |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 23 | 11 | 37 | 146
Commercial and industrial | Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 501 | 389 | 1,091 | 1,188
Commercial and industrial | Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 73 | 25 | 120 | 206
Commercial real estate | Interest Rate Reduction |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 27 |  | 27 |
Commercial real estate | Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 241 | 253 | 631 | 1,073
Commercial real estate | Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 29 | 87 | 29 | 248
Residential real estate | Interest Rate Reduction |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 1 | 1 | 4 | 3
Residential real estate | Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 1 | 1 | 5 | 4
Residential real estate | Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 71 | 28 | 130 | 67
Home equity | Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 2 | 3 | 5 | 10
Education | Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 1 | 1 | 4 | 4
Other consumer | Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified |  |  | 2 |
Other consumer | Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified |  |  | 1 |
Commercial Portfolio Segment |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | $ 923 | $ 764 | $ 1,970 | $ 2,523
% of Loan Class | 0.41% | 0.35% | 0.87% | 1.14%
Commercial Portfolio Segment | Interest Rate Reduction |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | $ 0 | $ 0 | $ 0 | $ 27
Commercial Portfolio Segment | Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 666 | 625 | 1,613 | 1,853
Commercial Portfolio Segment | Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 76 | 106 | 92 | 135
Commercial Portfolio Segment | Repayment Plan |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Commercial Portfolio Segment | Payment Delay and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 26 | 6 | 45 | 304
Commercial Portfolio Segment | Interest Rate Reduction and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 50 | 11 | 52 | 104
Commercial Portfolio Segment | Interest Rate Reduction and Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 15
Commercial Portfolio Segment | Interest Rate Reduction, Payment Delay, and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 12 | 0
Commercial Portfolio Segment | Other |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 105 | 16 | 156 | 85
Commercial Portfolio Segment | Commercial and industrial |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | $ 653 | $ 410 | $ 1,296 | $ 1,349
% of Loan Class | 0.34% | 0.23% | 0.68% | 0.75%
Commercial Portfolio Segment | Commercial and industrial | Interest Rate Reduction |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | $ 0 | $ 0 | $ 0 | $ 27
Commercial Portfolio Segment | Commercial and industrial | Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 452 | 372 | 1,009 | 927
Commercial Portfolio Segment | Commercial and industrial | Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 47 | 19 | 63 | 34
Commercial Portfolio Segment | Commercial and industrial | Repayment Plan |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Commercial Portfolio Segment | Commercial and industrial | Payment Delay and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 26 | 6 | 45 | 157
Commercial Portfolio Segment | Commercial and industrial | Interest Rate Reduction and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 23 | 11 | 25 | 104
Commercial Portfolio Segment | Commercial and industrial | Interest Rate Reduction and Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 15
Commercial Portfolio Segment | Commercial and industrial | Interest Rate Reduction, Payment Delay, and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 12 | 0
Commercial Portfolio Segment | Commercial and industrial | Other |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 105 | 2 | 142 | 85
Commercial Portfolio Segment | Commercial real estate |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | $ 270 | $ 354 | $ 674 | $ 1,174
% of Loan Class | 0.89% | 1.01% | 2.23% | 3.34%
Commercial Portfolio Segment | Commercial real estate | Interest Rate Reduction |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | $ 0 | $ 0 | $ 0 | $ 0
Commercial Portfolio Segment | Commercial real estate | Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 214 | 253 | 604 | 926
Commercial Portfolio Segment | Commercial real estate | Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 29 | 87 | 29 | 101
Commercial Portfolio Segment | Commercial real estate | Repayment Plan |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Commercial Portfolio Segment | Commercial real estate | Payment Delay and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 147
Commercial Portfolio Segment | Commercial real estate | Interest Rate Reduction and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 27 | 0 | 27 | 0
Commercial Portfolio Segment | Commercial real estate | Interest Rate Reduction and Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Commercial Portfolio Segment | Commercial real estate | Interest Rate Reduction, Payment Delay, and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Commercial Portfolio Segment | Commercial real estate | Other |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 14 | 14 | 0
Consumer Portfolio Segment |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | $ 110 | $ 65 | $ 221 | $ 163
% of Loan Class | 0.11% | 0.06% | 0.22% | 0.16%
Consumer Portfolio Segment | Interest Rate Reduction |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | $ 0 | $ 0 | $ 0 | $ 0
Consumer Portfolio Segment | Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 1 | 1 | 6 | 5
Consumer Portfolio Segment | Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 73 | 31 | 135 | 77
Consumer Portfolio Segment | Repayment Plan |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 18 | 22 | 50 | 58
Consumer Portfolio Segment | Payment Delay and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 1 | 0
Consumer Portfolio Segment | Interest Rate Reduction and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 1 | 1 | 4 | 3
Consumer Portfolio Segment | Interest Rate Reduction and Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Interest Rate Reduction, Payment Delay, and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Other |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 17 | 10 | 25 | 20
Consumer Portfolio Segment | Residential real estate |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | $ 78 | $ 33 | $ 141 | $ 79
% of Loan Class | 0.17% | 0.07% | 0.32% | 0.17%
Consumer Portfolio Segment | Residential real estate | Interest Rate Reduction |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | $ 0 | $ 0 | $ 0 | $ 0
Consumer Portfolio Segment | Residential real estate | Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 1 | 1
Consumer Portfolio Segment | Residential real estate | Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 71 | 28 | 130 | 67
Consumer Portfolio Segment | Residential real estate | Repayment Plan |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Residential real estate | Payment Delay and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Residential real estate | Interest Rate Reduction and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 1 | 1 | 4 | 3
Consumer Portfolio Segment | Residential real estate | Interest Rate Reduction and Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Residential real estate | Interest Rate Reduction, Payment Delay, and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Residential real estate | Other |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 6 | 4 | 6 | 8
Consumer Portfolio Segment | Home equity |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | $ 14 | $ 10 | $ 29 | $ 27
% of Loan Class | 0.05% | 0.04% | 0.11% | 0.10%
Consumer Portfolio Segment | Home equity | Interest Rate Reduction |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | $ 0 | $ 0 | $ 0 | $ 0
Consumer Portfolio Segment | Home equity | Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Home equity | Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 2 | 3 | 5 | 10
Consumer Portfolio Segment | Home equity | Repayment Plan |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 1 | 1 | 5 | 5
Consumer Portfolio Segment | Home equity | Payment Delay and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Home equity | Interest Rate Reduction and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Home equity | Interest Rate Reduction and Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Home equity | Interest Rate Reduction, Payment Delay, and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Home equity | Other |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 11 | 6 | 19 | 12
Consumer Portfolio Segment | Credit card |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | $ 17 | $ 21 | $ 44 | $ 52
% of Loan Class | 0.26% | 0.31% | 0.66% | 0.76%
Consumer Portfolio Segment | Credit card | Interest Rate Reduction |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | $ 0 | $ 0 | $ 0 | $ 0
Consumer Portfolio Segment | Credit card | Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Credit card | Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Credit card | Repayment Plan |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 17 | 21 | 44 | 52
Consumer Portfolio Segment | Credit card | Payment Delay and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Credit card | Interest Rate Reduction and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Credit card | Interest Rate Reduction and Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Credit card | Interest Rate Reduction, Payment Delay, and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Credit card | Other |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Education |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | $ 1 | $ 1 | $ 4 | $ 4
% of Loan Class | 0.07% | 0.06% | 0.26% | 0.24%
Consumer Portfolio Segment | Education | Interest Rate Reduction |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | $ 0 | $ 0 | $ 0 | $ 0
Consumer Portfolio Segment | Education | Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 1 | 1 | 4 | 4
Consumer Portfolio Segment | Education | Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Education | Repayment Plan |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Education | Payment Delay and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Education | Interest Rate Reduction and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Education | Interest Rate Reduction and Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Education | Interest Rate Reduction, Payment Delay, and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | 0 | 0 | 0 | 0
Consumer Portfolio Segment | Education | Other |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified | $ 0 | $ 0 | 0 | 0
Consumer Portfolio Segment | Other consumer |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified |  |  | $ 3 | $ 1
% of Loan Class |  |  | 0.07% | 0.02%
Consumer Portfolio Segment | Other consumer | Interest Rate Reduction |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified |  |  | $ 0 | $ 0
Consumer Portfolio Segment | Other consumer | Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified |  |  | 1 | 0
Consumer Portfolio Segment | Other consumer | Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified |  |  | 0 | 0
Consumer Portfolio Segment | Other consumer | Repayment Plan |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified |  |  | 1 | 1
Consumer Portfolio Segment | Other consumer | Payment Delay and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified |  |  | 1 | 0
Consumer Portfolio Segment | Other consumer | Interest Rate Reduction and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified |  |  | 0 | 0
Consumer Portfolio Segment | Other consumer | Interest Rate Reduction and Payment Delay |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified |  |  | 0 | 0
Consumer Portfolio Segment | Other consumer | Interest Rate Reduction, Payment Delay, and Term Extension |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified |  |  | 0 | 0
Consumer Portfolio Segment | Other consumer | Other |  |  |  |
Financing Receivable [Line Items] |  |  |  |
Amortized cost basis, modified |  |  | $ 0 | $ 0

X
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