INVESTMENT SECURITIES - MORTGAGE BACKED SECURITIES AND COLLATERALIZED MORTGAGE SECURITIES (Details) - USD ($) $ in Millions |
6 Months Ended | 12 Months Ended |
|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2025 |
|
| Mortgage backed securities and CMOs | ||
| Investment Securities | ||
| Gross unrealized losses on available for sale securities | $ 9 | $ 7 |