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v3.25.1

Stockholders' equity (Details) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
IfrsStatementLineItems [Line Items] |  |  |
Shares of capital stock | 9,804,135,348 | 9,804,135,348 | 9,804,135,348
Shares of capital stock, Value | R$ 90,729 | R$ 90,729 | R$ 90,729
Treasury shares | 28,030,833 | 436,671 | 3,268,688
Treasury shares, value | R$ (11) | R$ (11) | R$ (71)
Acquisition of treasury shares | 54,000,000 | 26,000,000 |
Acquisition of treasury shares value | R$ (1,775) | R$ (689) |
Result of delivery of treasury shares | (26,405,838) | (28,832,017) |
Result of delivery of treasury shares | R$ 877 |  |
Treasury shares, value | R$ (909) | R$ (11) | R$ (11)
Outstanding shares | 9,776,104,515 | 9,803,698,677 | 9,800,866,660
Result of delivery of treasury shares | R$ 860 | R$ 747 | R$ 521
Country Of Brazil [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Shares of capital stock | 6,243,973,086 | 6,431,313,028 | 6,557,365,425
Shares of capital stock, Value | R$ 57,783 | R$ 59,516 | R$ 60,683
Foreign countries [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Shares of capital stock | 3,560,162,262 | 3,372,822,320 | 3,246,769,923
Shares of capital stock, Value | R$ 32,946 | R$ 31,213 | R$ 30,046
Ordinary shares [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Shares of capital stock | 4,958,290,359 | 4,958,290,359 | 4,958,290,359
Outstanding shares | 4,958,290,359 | 4,958,290,359 | 4,958,290,359
Ordinary shares [member] | Country Of Brazil [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Shares of capital stock | 4,918,480,340 | 4,923,277,339 | 4,927,867,243
Ordinary shares [member] | Foreign countries [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Shares of capital stock | 39,810,019 | 35,013,020 | 30,423,116
Preference shares [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Shares of capital stock | 4,845,844,989 | 4,845,844,989 | 4,845,844,989
Treasury shares | 28,030,833 | 436,671 | 3,268,688
Acquisition of treasury shares | 54,000,000 | 26,000,000 |
Result of delivery of treasury shares | (26,405,838) | (28,832,017) |
Outstanding shares | 4,817,814,156 | 4,845,408,318 | 4,842,576,301
Result of delivery of treasury shares |  | R$ 749 |
Preference shares [member] | Country Of Brazil [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Shares of capital stock | 1,325,492,746 | 1,508,035,689 | 1,629,498,182
Preference shares [member] | Foreign countries [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Shares of capital stock | 3,520,352,243 | 3,337,809,300 | 3,216,346,807

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