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Financial assets at amortized cost - Securities (Details) - BRL (R$) R$ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
IfrsStatementLineItems [Line Items] |  |
Amortized cost | R$ 1,912,804 | R$ 1,686,225
Financial Assets Securities [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Amortized cost | 327,507 | 260,743
Expected loss | (3,655) | (854)
Net amortized cost | 323,852 | 259,889
Financial Assets Securities [Member] | Brazilian Government Securities [member] |  |
IfrsStatementLineItems [Line Items] |  |
Amortized cost | 111,824 | 94,990
Expected loss | (16) | (23)
Net amortized cost | 111,808 | 94,967
Financial Assets Securities [Member] | Government securities - Latin America [member] |  |
IfrsStatementLineItems [Line Items] |  |
Amortized cost | 21,730 | 27,874
Expected loss | (9) | (9)
Net amortized cost | 21,721 | 27,865
Financial Assets Securities [Member] | Government Securities – Other Countries [member] |  |
IfrsStatementLineItems [Line Items] |  |
Amortized cost | 25,126 | 22,712
Expected loss | (3) | (4)
Net amortized cost | 25,123 | 22,708
Financial Assets Securities [Member] | Corporate Securities [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Amortized cost | 168,827 | 115,167
Expected loss | (3,627) | (818)
Net amortized cost | 165,200 | 114,349
Financial Assets Securities [Member] | Corporate Securities [Member] | Rural Product Note [member] |  |
IfrsStatementLineItems [Line Items] |  |
Amortized cost | 60,358 | 38,146
Expected loss | (416) | (190)
Net amortized cost | 59,942 | 37,956
Financial Assets Securities [Member] | Corporate Securities [Member] | Bank Deposit Certificates [member] |  |
IfrsStatementLineItems [Line Items] |  |
Amortized cost | 50 | 19
Net amortized cost | 50 | 19
Financial Assets Securities [Member] | Corporate Securities [Member] | Real Estate Receivables Certificates [member] |  |
IfrsStatementLineItems [Line Items] |  |
Amortized cost | 5,827 | 5,911
Expected loss | (9) | (7)
Net amortized cost | 5,818 | 5,904
Financial Assets Securities [Member] | Corporate Securities [Member] | Debentures [member] |  |
IfrsStatementLineItems [Line Items] |  |
Amortized cost | 77,344 | 57,399
Expected loss | (3,101) | (586)
Net amortized cost | 74,243 | 56,813
Financial Assets Securities [Member] | Corporate Securities [Member] | Eurobonds And Others [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Amortized cost | 1,102 | 516
Expected loss | (9) |
Net amortized cost | 1,093 | 516
Financial Assets Securities [Member] | Corporate Securities [Member] | Financial bills [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Amortized cost | 212 | 1,575
Expected loss |  | (2)
Net amortized cost | 212 | 1,573
Financial Assets Securities [Member] | Corporate Securities [Member] | Promissory And Commercial Notes [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Amortized cost | 16,312 | 10,253
Expected loss | (32) | (23)
Net amortized cost | 16,280 | 10,230
Financial Assets Securities [Member] | Corporate Securities [Member] | Other [member] |  |
IfrsStatementLineItems [Line Items] |  |
Amortized cost | 7,622 | 1,348
Expected loss | (60) | (10)
Net amortized cost | R$ 7,562 | R$ 1,338

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- Definition The amount of financial assets at amortised cost. The amortised cost is the amount at which financial assets are measured at initial recognition minus principal repayments, plus or minus the cumulative amortisation using the effective interest method of any difference between that initial amount and the maturity amount, and adjusted for any impairment. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 8 -Subparagraph f -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_8_f&doctype=Standard -URIDate 2024-03-27 + Details
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