RISK MANAGEMENT - Regulatory capital management (Details) |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Disclosure of nature and extent of risks arising from financial instruments [line items] | |
| Solvency Risk Ratio | 9.00% |
| Capital Conversion Buffer | 1.50% |
| Systematic Risk Buffer | 1.00% |
| Decrees established a minimum leverage ratio | 3.00% |
| Systemic importance buffer (as a percent) | 0.60% |
| Transition period to comply with the systemic buffer | 2 years |
| Bottom of range [member] | |
| Disclosure of nature and extent of risks arising from financial instruments [line items] | |
| Solvency Risk Ratio | 9.00% |
| Basic Solvency Risk Ratio | 4.50% |
| Additional Tier 1 Percentage | 6.00% |