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Commitments, Contingent Liabilities and Guarantees - Risk Rating Under the Risk Rating System (Details) - Commitments to extend credit - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
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Line of Credit Facility |  |
Commitments | $ 80,272 | $ 80,680
Pass |  |
Line of Credit Facility |  |
Commitments | 78,477 | 78,734
Special mention |  |
Line of Credit Facility |  |
Commitments | 750 | 850
Substandard |  |
Line of Credit Facility |  |
Commitments | 1,043 | 1,095
Doubtful |  |
Line of Credit Facility |  |
Commitments | $ 2 | $ 1

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