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v3.25.1

Hedge accounting (Details 1) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
IfrsStatementLineItems [Line Items] |  |  |
Nominal Value | R$ 356,851 | R$ 282,444 |
Gain (loss) on hedge ineffectiveness recognised in other comprehensive income | (2,156) | 684 | R$ (34)
Currency risk [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Nominal Value | 19,363 | 19,208 |
Gain (loss) on hedge ineffectiveness recognised in other comprehensive income | (17,404) | (13,986) |
Cash flow hedges [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Nominal Value | 236,045 | 208,993 |
Hedging instrument, assets | 220 | 276 |
Hedging instrument, liabilities | 311 | 427 |
Gain (loss) on change in fair value of hedging instrument used as basis for recognising hedge ineffectiveness | (1,066) | 175 |
Gain (loss) on hedge ineffectiveness recognised in other comprehensive income | (1,122) | 176 |
Gain (loss) on hedge ineffectiveness recognised in profit or loss | 56 | (1) |
Reclassification adjustments on cash flow hedges, net of tax | (347) | (174) |
Interest Rate Futures [Member] | Cash flow hedges [member] | Interest rate risk [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Nominal Value | 172,904 | 170,514 |
Hedging instrument, assets | 76 | 53 |
Hedging instrument, liabilities | 133 | 43 |
Gain (loss) on change in fair value of hedging instrument used as basis for recognising hedge ineffectiveness | (855) | 42 |
Gain (loss) on hedge ineffectiveness recognised in other comprehensive income | (911) | 42 |
Gain (loss) on hedge ineffectiveness recognised in profit or loss | 56 |  |
Reclassification adjustments on cash flow hedges, net of tax | (285) | (168) |
Interest Rate Forward [Member] | Cash flow hedges [member] | Interest rate risk [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Nominal Value | 33,218 | 10,582 |
Hedging instrument, assets |  | 44 |
Hedging instrument, liabilities | 132 |  |
Gain (loss) on change in fair value of hedging instrument used as basis for recognising hedge ineffectiveness | (45) | 21 |
Gain (loss) on hedge ineffectiveness recognised in other comprehensive income | (45) | 21 |
Reclassification adjustments on cash flow hedges, net of tax |  | 4 |
Interest Rate Swap 2 [Member] | Cash flow hedges [member] | Interest rate risk [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Nominal Value | 27,321 | 24,286 |
Hedging instrument, assets | 106 | 179 |
Hedging instrument, liabilities | 31 | 101 |
Gain (loss) on change in fair value of hedging instrument used as basis for recognising hedge ineffectiveness | 38 | 89 |
Gain (loss) on hedge ineffectiveness recognised in other comprehensive income | 38 | 90 |
Gain (loss) on hedge ineffectiveness recognised in profit or loss |  | (1) |
Reclassification adjustments on cash flow hedges, net of tax | (59) | (1) |
Futures contract [member] | Cash flow hedges [member] | Currency risk [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Nominal Value | 1,186 | 1,278 |
Hedging instrument, assets | 4 |  |
Hedging instrument, liabilities |  | 7 |
Gain (loss) on change in fair value of hedging instrument used as basis for recognising hedge ineffectiveness | (181) | 36 |
Gain (loss) on hedge ineffectiveness recognised in other comprehensive income | (181) | 36 |
Reclassification adjustments on cash flow hedges, net of tax | (3) | (9) |
Forward contract [member] | Cash flow hedges [member] | Currency risk [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Nominal Value | 1,416 | 2,333 |
Hedging instrument, assets | 34 |  |
Hedging instrument, liabilities | 15 | 276 |
Gain (loss) on change in fair value of hedging instrument used as basis for recognising hedge ineffectiveness | (23) | (13) |
Gain (loss) on hedge ineffectiveness recognised in other comprehensive income | R$ (23) | R$ (13) |

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