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Other Comprehensive Income (Details) - BRL (R$) R$ in Thousands | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | --- | ---
IfrsStatementLineItems [Line Items] |  |  |
Government debt securities | R$ 69,354,220 | R$ 86,437,770 | R$ 58,841,921
Private-sector debt securities |  | 5,621,137 | 194,216
Total | 69,354,220 | 92,058,907 | 59,036,137
Revaluation Gains [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Government debt securities | 2,376,664 | 825,610 | 2,533,250
Private-sector debt securities |  | 2,043,223 | 10,864
Total | 2,376,664 | 2,868,833 | 2,544,114
Revaluation Losses [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Government debt securities | (1,250,469) | (4,604,296) | (1,437,728)
Private-sector debt securities | (404) | (429,081) | (568,948)
Total | (1,250,873) | (5,033,377) | (2,006,676)
Net Revaluation Gains Losses [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Government debt securities | 1,126,195 | (3,778,686) | 1,095,522
Private-sector debt securities | (404) | 1,614,142 | (558,084)
Total | R$ 1,125,791 | R$ (2,164,544) | R$ 537,438

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