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v3.25.1

Stockholders' equity (Details 3) R$ in Millions | 12 Months Ended
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Dec. 31, 2024 BRL (R$) $ / shares | Dec. 31, 2024 BRL (R$) | Dec. 31, 2023 BRL (R$) $ / shares | Dec. 31, 2023 BRL (R$) | Dec. 31, 2022 BRL (R$) $ / shares | Dec. 31, 2022 BRL (R$)
IfrsStatementLineItems [Line Items] |  |  |  |  |  |
Paid / prepaid, value |  | R$ 6,729 |  | R$ 7,079 |  | R$ 4,906
Paid / prepaid |  | (1,009) |  | (1,061) |  | (735)
Paid / prepaid, Net |  | 5,720 |  | 6,018 |  | 4,171
Accrued (Recorded in Other Liabilities), value | R$ 5,886 | 5,886 | R$ 5,236 | 5,236 | R$ 4,938 | 4,938
Accrued (Recorded in Other Liabilities) | (882) | (882) | (786) | (786) | (741) | (741)
Accrued (Recorded in Other Liabilities), Net | 5,004 | 5,004 | 4,450 | 4,450 | 4,197 | 4,197
Identified in revenue reserves in stockholders equity, value | 15,489 | 15,489 | 11,000 | 11,000 |  |
Identified in revenue reserves in stockholders equity, WHT | (489) | (489) |  |  |  |
Identified in revenue reserves in stockholders equity, Net | R$ 15,000 | 15,000 | R$ 11,000 | 11,000 |  |
Interest on capital, Gross value per share | $ / shares | R$ 0.2834 |  |  |  |  |
Interest on capital, value |  | 3,260 |  |  |  |
Interest on capital, WHT | R$ (489) | (489) |  |  |  |
Interest on capital, Net |  | 2,771 |  |  |  |
Dividends, Gross value per share | $ / shares | R$ 1.2509 |  | R$ 1.1251 |  |  |
Dividends, value |  | 12,229 |  | 11,000 |  |
Dividends, Net |  | 12,229 |  | 11,000 |  |
Total, value |  | 28,104 |  | 23,315 |  | 9,844
Total, WHT |  | (2,380) |  | (1,847) |  | (1,476)
Total, Net | R$ 25,724 | 25,724 | R$ 21,468 | 21,468 | R$ 8,368 | 8,368
Interest On Capital One [Member] |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |
Interest on capital - 1 monthly installment, gross value per share | $ / shares | R$ 0.0150 |  | R$ 0.0150 |  | R$ 0.0150 |
Interest on capital - 1 monthly installment, value |  | 1,901 |  | 1,902 |  | 1,902
Interest on capital - 1 monthly installment, WHT |  | (285) |  | (285) |  | (285)
Interest on capital - 1 monthly installment, Net |  | 1,616 |  | 1,617 |  | 1,617
Interest On Capital Two [Member] |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |
Interest on capital - 1 monthly installment, gross value per share | $ / shares |  |  |  |  | 0.0150 |
Interest on capital - 1 monthly installment, WHT |  |  |  |  |  | (26)
Interest on capital - 1 monthly installment, Net |  |  |  |  |  | 147
Interest on capital, gross value per share | $ / shares | 0.2055 |  | 0.2227 |  | 0.2605 |
Interest on capital-paid, value |  | 2,370 |  | 2,567 |  | 3,004
Interest on capital, WHT |  | (356) |  | (385) |  | (450)
Interest on capital, Net |  | 2,014 |  | 2,182 |  | 2,554
Interest On Capital Three [Member] |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |
Interest on capital - 1 monthly installment, value |  |  |  |  |  | 173
Interest on capital, gross value per share | $ / shares | 0.2134 |  | 0.2264 |  |  |
Interest on capital, WHT |  | (368) |  | (391) |  |
Interest on capital, Net |  | 2,090 |  | 2,219 |  |
Interest on capital, value |  | 2,458 |  | 2,610 |  |
Interest On Capital Four [Member] |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |
Interest on capital - 1 monthly installment, gross value per share | $ / shares | 0.0150 |  | 0.0150 |  |  |
Interest on capital - 1 monthly installment, value |  | 173 |  | 173 |  |
Interest on capital - 1 monthly installment, WHT |  | (26) |  | (26) |  |
Interest on capital - 1 monthly installment, Net |  | 147 |  | 147 |  |
Interest On Capital Credited [Member] |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |
Interest on capital-paid, value |  | 2,673 |  | 2,639 |  | 4,765
Interest on capital, WHT |  | (400) |  | (396) |  | (715)
Interest on capital, Net |  | 2,273 |  | 2,243 |  | R$ 4,050
Interest on capital, gross value per share | $ / shares | 0.2320 |  | 0.2289 |  | R$ 0.4133 |
Interest On Capital Credited 1 [Member] |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |
Interest on capital-paid, value |  | 3,040 |  | 2,424 |  |
Interest on capital, WHT |  | (456) |  | (364) |  |
Interest on capital, Net |  | R$ 2,584 |  | R$ 2,060 |  |
Interest on capital, gross value per share | $ / shares | R$ 0.2640 |  | R$ 0.2102 |  |  |

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