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Financial assets and liabilities - Loans and financing (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
IfrsStatementLineItems [Line Items] |  |
Loans and financing | $ 12,712 | $ 13,782
Gross carrying amount [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loans and financing | 11,034 | 12,022
Gross carrying amount [member] | United States of America, Dollars |  |
IfrsStatementLineItems [Line Items] |  |
Loans and financing | 4,266 | 3,615
Gross carrying amount [member] | Euro Member Countries, Euro |  |
IfrsStatementLineItems [Line Items] |  |
Loans and financing | 9 | 87
Gross carrying amount [member] | Tjlp Tr Ipca Igp M And Cdi [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loans and financing | 278 | 354
Gross carrying amount [member] | Fixed interest rate [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loans and financing | 2 | 13
Gross carrying amount [member] | Fixed interest rate [member] | Currencies Other Than U S Dollar And Brazilian Real [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loans and financing | 89 | 107
Gross carrying amount [member] | Basket Of Currencies And Usd L I B O R [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loans and financing |  | 11
Gross carrying amount [member] | Bond [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loans and financing | 6,157 | 7,448
Gross carrying amount [member] | Debentures [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loans and financing | 233 | 387
At fair value [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loans and financing | 11,249 | 13,400
At fair value [member] | United States of America, Dollars |  |
IfrsStatementLineItems [Line Items] |  |
Loans and financing | 4,391 | 3,231
At fair value [member] | Euro Member Countries, Euro |  |
IfrsStatementLineItems [Line Items] |  |
Loans and financing | 9 | 54
At fair value [member] | Tjlp Tr Ipca Igp M And Cdi [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loans and financing | 278 | 449
At fair value [member] | Fixed interest rate [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loans and financing | 2 |
At fair value [member] | Fixed interest rate [member] | Currencies Other Than U S Dollar And Brazilian Real [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loans and financing | 91 | 117
At fair value [member] | Basket Of Currencies And Usd L I B O R [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loans and financing |  | 11
At fair value [member] | Bond [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loans and financing | 6,253 | 9,151
At fair value [member] | Debentures [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loans and financing | $ 225 | $ 387

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