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GUARANTEES AND COMMITMENTS - Performance Risk (Details) - USD ($) $ in Billions | Sep. 30, 2025 | Dec. 31, 2024
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Guarantor Obligations |  |
Maximum potential amount of future payments | $ 563.7 | $ 523.4
Classified based on internal and external credit ratings |  |
Guarantor Obligations |  |
Maximum potential amount of future payments | 89.9 | 88.4
Investment grade |  |
Guarantor Obligations |  |
Maximum potential amount of future payments | 67.1 | 63.2
Non-investment grade |  |
Guarantor Obligations |  |
Maximum potential amount of future payments | 21.9 | 24.0
Not rated |  |
Guarantor Obligations |  |
Maximum potential amount of future payments | 0.9 | 1.2
Financial standby letters of credit |  |
Guarantor Obligations |  |
Maximum potential amount of future payments | 80.6 | 79.0
Financial standby letters of credit | Classified based on internal and external credit ratings |  |
Guarantor Obligations |  |
Maximum potential amount of future payments | 80.6 | 79.0
Financial standby letters of credit | Investment grade |  |
Guarantor Obligations |  |
Maximum potential amount of future payments | 67.1 | 63.2
Financial standby letters of credit | Non-investment grade |  |
Guarantor Obligations |  |
Maximum potential amount of future payments | 13.5 | 15.6
Financial standby letters of credit | Not rated |  |
Guarantor Obligations |  |
Maximum potential amount of future payments | 0.0 | 0.2
Loans sold with recourse |  |
Guarantor Obligations |  |
Maximum potential amount of future payments | 0.9 | 1.0
Loans sold with recourse | Classified based on internal and external credit ratings |  |
Guarantor Obligations |  |
Maximum potential amount of future payments | 0.9 | 1.0
Loans sold with recourse | Investment grade |  |
Guarantor Obligations |  |
Maximum potential amount of future payments | 0.0 | 0.0
Loans sold with recourse | Non-investment grade |  |
Guarantor Obligations |  |
Maximum potential amount of future payments | 0.0 | 0.0
Loans sold with recourse | Not rated |  |
Guarantor Obligations |  |
Maximum potential amount of future payments | 0.9 | 1.0
Other |  |
Guarantor Obligations |  |
Maximum potential amount of future payments | 8.4 | 8.5
Other | Classified based on internal and external credit ratings |  |
Guarantor Obligations |  |
Maximum potential amount of future payments | 8.4 | 8.4
Other | Investment grade |  |
Guarantor Obligations |  |
Maximum potential amount of future payments | 0.0 | 0.0
Other | Non-investment grade |  |
Guarantor Obligations |  |
Maximum potential amount of future payments | 8.4 | 8.4
Other | Not rated |  |
Guarantor Obligations |  |
Maximum potential amount of future payments | $ 0.0 | $ 0.0

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