DERIVATIVES - Cash Flow Hedges (Details) - USD ($) $ in Millions |
12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|||||
| Pretax change in accumulated other comprehensive income (loss) | |||||||
| Total gain (loss) recognized in AOCI | $ (279) | $ 469 | $ (421) | ||||
| Other revenue | [1] | (504) | 1,250 | 2,734 | |||
| Net interest income | [2] | 59,792 | 54,095 | 54,900 | |||
| Cash flow hedges expected to be reclassified within 12 months | $ (100) | ||||||
| Maximum length of time hedged in cash flow hedge | 13 years | ||||||
| Net interest income | |||||||
| Pretax change in accumulated other comprehensive income (loss) | |||||||
| Pretax loss reclassified from AOCI into earnings | $ (569) | (1,030) | (1,901) | ||||
| Interest rate contracts | |||||||
| Pretax change in accumulated other comprehensive income (loss) | |||||||
| Total gain (loss) recognized in AOCI | (293) | 476 | (434) | ||||
| Interest rate contracts | Net interest income | |||||||
| Pretax change in accumulated other comprehensive income (loss) | |||||||
| Pretax loss reclassified from AOCI into earnings | (556) | (1,027) | (1,897) | ||||
| Foreign exchange contracts | |||||||
| Pretax change in accumulated other comprehensive income (loss) | |||||||
| Total gain (loss) recognized in AOCI | 14 | (7) | 13 | ||||
| Foreign exchange contracts | Net interest income | |||||||
| Pretax change in accumulated other comprehensive income (loss) | |||||||
| Pretax loss reclassified from AOCI into earnings | (13) | (3) | (4) | ||||
| Cash flow hedges | |||||||
| Pretax change in accumulated other comprehensive income (loss) | |||||||
| Total gain (loss) recognized in AOCI | $ 290 | $ 1,499 | $ 1,480 | ||||
| |||||||