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Significant accounting policies (Tables) | 12 Months Ended
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Dec. 31, 2021
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Summary of Consolidated Companies | The following table shows the main consolidated companies, which together represent over 95% of total consolidated assets, as well as the interests of ITAÚ UNIBANCO HOLDING in their voting capital.
|  | Functional currency (1) |  |  | Incorporation country |  |  | Activity |  |  | Interest in voting capital % |  |  | Interest in total capital % |
|  |  |  |  |  |  |  |  |  |  | 12/31/2021 |  |  | 12/31/2020 |  |  | 12/31/2021 |  |  | 12/31/2020 |
In Brazil |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Banco Itaú BBA S.A. |  |  | Real |  |  |  | Brazil |  |  |  | Financial institution |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Banco Itaú Consignado S.A. |  |  | Real |  |  |  | Brazil |  |  |  | Financial institution |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Banco Itaucard S.A. |  |  | Real |  |  |  | Brazil |  |  |  | Financial institution |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Banco Itauleasing S.A. |  |  | Real |  |  |  | Brazil |  |  |  | Financial institution |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Cia. Itaú de Capitalização |  |  | Real |  |  |  | Brazil |  |  |  | Premium Bonds |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Dibens Leasing S.A. - Arrendamento Mercantil |  |  | Real |  |  |  | Brazil |  |  |  | Leasing |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Financeira Itaú CBD S.A. Crédito, Financiamento e Investimento |  |  | Real |  |  |  | Brazil |  |  |  | Consumer finance credit |  |  |  | 50.00% |  |  |  | 50.00 | % |  |  | 50.00 | % |  |  | 50.00 | %
Hipercard Banco Múltiplo S.A. |  |  | Real |  |  |  | Brazil |  |  |  | Financial institution |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Itauseg Seguradora S.A. |  |  | Real |  |  |  | Brazil |  |  |  | Insurance |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Itaú Corretora de Valores S.A. |  |  | Real |  |  |  | Brazil |  |  |  | Securities Broker |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Itaú Seguros S.A. |  |  | Real |  |  |  | Brazil |  |  |  | Insurance |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Itaú Unibanco S.A. |  |  | Real |  |  |  | Brazil |  |  |  | Financial institution |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Itaú Vida e Previdência S.A. |  |  | Real |  |  |  | Brazil |  |  |  | Pension plan |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Luizacred S.A. Sociedade de Crédito, Financiamento e Investimento |  |  | Real |  |  |  | Brazil |  |  |  | Consumer finance credit |  |  |  | 50.00% |  |  |  | 50.00 | % |  |  | 50.00 | % |  |  | 50.00 | %
Redecard Instituição de Pagamento S.A. (2) |  |  | Real |  |  |  | Brazil |  |  |  | Acquirer |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Foreign |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Itaú CorpBanca Colombia S.A. |  |  | Colombian peso |  |  |  | Colombia |  |  |  | Financial institution |  |  |  | 49.30% |  |  |  | 34.16 | % |  |  | 49.30 | % |  |  | 34.16 | %
Banco Itaú (Suisse) S.A. |  |  | Swiss franc |  |  |  | Switzerland |  |  |  | Financial institution |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Banco Itaú Argentina S.A. |  |  | Argentinian peso |  |  |  | Argentina |  |  |  | Financial institution |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Banco Itaú Paraguay S.A. |  |  | Guarani |  |  |  | Paraguay |  |  |  | Financial institution |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Banco Itaú Uruguay S.A. |  |  | Uruguayan peso |  |  |  | Uruguay |  |  |  | Financial institution |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Itau Bank, Ltd. |  |  | Real |  |  |  | Cayman Islands |  |  |  | Financial institution |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Itau BBA International plc |  |  | US Dollar |  |  |  | United Kingdom |  |  |  | Financial institution |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Itau BBA USA Securities Inc. |  |  | Real |  |  |  | United States |  |  |  | Securities Broker |  |  |  | 100.00% |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | 100.00 | %
Itaú CorpBanca (3) |  |  | Chilean peso |  |  |  | Chile |  |  |  | Financial institution |  |  |  | 56.60% |  |  |  | 39.22 | % |  |  | 56.60 | % |  |  | 39.22 | %
(1) | All overseas offices of ITAÚ UNIBANCO HOLDING have the same functional currency as the parent company, except for CorpBanca New York Branch, which uses the US dollar.
(2) | New company name of Redecard S.A.
(3) | ITAÚ UNIBANCO HOLDING controls ITAÚ CORPBANCA due to the shareholders’ agreement.

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