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Post-employment benefits (Details 3) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
IfrsStatementLineItems [Line Items] |  |
Estimated contribution | R$ 124 |
Contributions made | 93 | R$ 75
Fundacao Itau Unibanco Previdencia Complementar [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Estimated contribution | 39 |
Contributions made | 54 | 43
Funbep Fundo De Pensao Multipatrocinado [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Estimated contribution | 85 |
Contributions made | R$ 39 | R$ 32

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- Definition The amount of employer contributions to retirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 26 -IssueDate 2022-03-24 -Paragraph 35 -Subparagraph b -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=26&code=ifrs-tx-2022-en-r&anchor=para_35_b_i&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The estimate of the expected contributions to be made to a defined benefit plan for the next annual reporting period. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2022-03-24 -Paragraph 147 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_147_b&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2022-03-24 -Paragraph 148 -Subparagraph d -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_148_d_iii&doctype=Standard -URIDate 2022-03-24 + Details
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- Details
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