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v3.25.2

Loans and Related Allowance for Credit Losses (Narrative) (Details) $ in Millions | Jun. 30, 2025 USD ($) portfolio_segment | Dec. 31, 2024 USD ($) | Jun. 30, 2024 USD ($)
--- | --- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Number of portfolio segments | portfolio_segment | 2 |  |
Financing receivable, after allowance for credit loss | $ 321,817 | $ 311,981 |
Allowance for credit loss | 5,282 | 5,200 | $ 5,353
Federal Reserve Bank | Asset Pledged as Collateral without Right |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Financing receivable, after allowance for credit loss | 44,300 | 43,400 |
Federal Home Loan Bank | Asset Pledged as Collateral without Right |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Financing receivable, after allowance for credit loss | $ 81,600 | $ 89,000 |

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