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FAIR VALUE ELECTIONS - Changes in Fair Value Gains (Losses) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Securities borrowed and purchased under agreements to resell |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions. |  |  |  |
Gain (loss) from changes in fair value | $ 88 | $ 223 | $ 210 | $ 164
Trading account assets |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions. |  |  |  |
Gain (loss) from changes in fair value | 13 | 8 | 52 | 10
Investments |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions. |  |  |  |
Gain (loss) from changes in fair value | 4 | 0 | 4 | 0
Corporate loans |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions. |  |  |  |
Gain (loss) from changes in fair value | 587 | (143) | 1,539 | 1,235
Consumer loans |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions. |  |  |  |
Gain (loss) from changes in fair value | 1 | 14 | 4 | 4
Loans |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions. |  |  |  |
Gain (loss) from changes in fair value | 588 | (129) | 1,543 | 1,239
MSRs |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions. |  |  |  |
Gain (loss) from changes in fair value | (25) | (40) | (28) | (23)
Mortgage loans HFS |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions. |  |  |  |
Gain (loss) from changes in fair value | 21 | 43 | 51 | 48
Total other assets |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions. |  |  |  |
Gain (loss) from changes in fair value | (4) | 3 | 23 | 25
Total assets |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions. |  |  |  |
Gain (loss) from changes in fair value | 689 | 105 | 1,832 | 1,438
Deposits |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions. |  |  |  |
Gain (loss) from changes in fair value | (51) | (43) | (146) | (106)
Securities loaned and sold under agreements to repurchase |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions. |  |  |  |
Gain (loss) from changes in fair value | (90) | (70) | (78) | (44)
Securities sold, not yet purchased |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions. |  |  |  |
Gain (loss) from changes in fair value | (70) | (17) | (223) | (241)
Short-term borrowings |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions. |  |  |  |
Gain (loss) from changes in fair value | (1,627) | (200) | (2,507) | (581)
Long-term debt |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions. |  |  |  |
Gain (loss) from changes in fair value | (4,174) | (6,216) | (9,312) | (8,338)
Total liabilities |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions. |  |  |  |
Gain (loss) from changes in fair value | $ (6,012) | $ (6,546) | $ (12,266) | $ (9,310)

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