DERIVATIVE FINANCIAL INSTRUMENTS (Details 5) - BRL (R$) R$ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| IfrsStatementLineItems [Line Items] | ||
| Gross amount | R$ 349,702,217 | R$ 283,049,765 |
| Interbank Investments [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Gross amount | 218,329,819 | 178,260,906 |
| Net amount | 218,329,819 | 178,260,906 |
| Derivative Financial Instrument Assets [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Gross amount | 20,850,095 | 19,834,985 |
| Net amount | 20,850,095 | 19,834,985 |
| Securities Sold Under Agreement To Repurchase [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Gross amount | 160,636,183 | 165,916,852 |
| Net amount | 160,636,183 | 165,916,852 |
| Derivative Financial Instrument Liabilities [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Gross amount | 18,268,330 | 16,240,611 |
| Net amount | R$ 18,268,330 | R$ 16,240,611 |