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Insurance contracts and private pension (Details Narrative) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
IfrsStatementLineItems [Line Items] |  |
Assets | R$ 2,854,475 | R$ 2,543,100
Liabilities | 2,633,191 | 2,344,050
Fair value investment funds | 287,919 | 253,287
Revenue from insurance | 2,241 | 2,532
Revenue from private pension | 17,798 | 19,809
General Model B B A [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Assets | 46 | 103
Liabilities | R$ 5,798 | R$ 5,237

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