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Accounting policies (Tables) | 12 Months Ended
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Dec. 31, 2021
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Schedule of Exchange Rates of Real for Functional Currencies of Subsidiaries | The following table set forth the exchange rate, expressed in reais (R$) per U.S. dollar (U.S.$), British pound (£) and Euro (€), as reported by the Central Bank of Brazil (Banco Central do Brasil), “BACEN,” for the years indicated:
Currency | December 31, 2021 |  |  | December 31, 2020 |  |  | December 31, 2019 |  |
U.S. dollar (U.S.$) | 5.581 |  |  | 5.197 |  |  | 4.031 |  |
British pound (£) | 7.524 |  |  | 7.101 |  |  | 5.325 |  |
Euro (€) | 6.321 |  |  | 6.378 |  |  | 4.531 |  |

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