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Financial assets and liabilities - Hierarchy of fair value (Details) - USD ($) $ in Millions | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
IfrsStatementLineItems [Line Items] |  |
Financial assets | $ 3,701 | $ 4,387
Financial liabilities | 2,673 | 3,104
Derivatives [member] |  |
IfrsStatementLineItems [Line Items] |  |
Financial liabilities | 145 | 276
Participative Stockholders Debentures Noncurrent [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Financial liabilities | 2,528 | 2,725
Financial Guarantees [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Financial liabilities |  | 103
Shorts Term Investments [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Financial assets | 46 | 61
Derivatives [member] |  |
IfrsStatementLineItems [Line Items] |  |
Financial assets | 1,081 | 538
Accounts Receivable Current [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Financial assets | 2,543 | 3,781
Investments In Equity Securities Noncurrent [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Financial assets | 31 | 7
Level 1 of fair value hierarchy [member] |  |
IfrsStatementLineItems [Line Items] |  |
Financial assets | 46 | 61
Level 1 of fair value hierarchy [member] | Shorts Term Investments [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Financial assets | 46 | 61
Level 2 of fair value hierarchy [member] |  |
IfrsStatementLineItems [Line Items] |  |
Financial assets | 3,655 | 4,326
Financial liabilities | 2,673 | 3,104
Level 2 of fair value hierarchy [member] | Derivatives [member] |  |
IfrsStatementLineItems [Line Items] |  |
Financial liabilities | 145 | 276
Level 2 of fair value hierarchy [member] | Participative Stockholders Debentures Noncurrent [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Financial liabilities | 2,528 | 2,725
Level 2 of fair value hierarchy [member] | Financial Guarantees [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Financial liabilities |  | 103
Level 2 of fair value hierarchy [member] | Derivatives [member] |  |
IfrsStatementLineItems [Line Items] |  |
Financial assets | 1,081 | 538
Level 2 of fair value hierarchy [member] | Accounts Receivable Current [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Financial assets | 2,543 | 3,781
Level 2 of fair value hierarchy [member] | Investments In Equity Securities Noncurrent [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Financial assets | $ 31 | $ 7

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- Definition The fair value of financial assets. [Refer: At fair value [member]; Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_25&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The fair value of financial liabilities. [Refer: At fair value [member]; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_25&doctype=Standard -URIDate 2023-03-23 + Details
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