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Risk management (Details 12) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
IfrsStatementLineItems [Line Items] |  |
Financial assets, at fair value | $ 23 |
Foreign currency derivatives |  | $ (273)
Recurring fair value measurement [member] |  |
IfrsStatementLineItems [Line Items] |  |
Foreign currency derivatives | (121) |
Recurring fair value measurement [member] | Foreign Currency Contracts Derivative [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Foreign currency derivatives | (64) |
Recurring fair value measurement [member] | Commodity Derivatives Liabilities [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Foreign currency derivatives | (40) |
Recurring fair value measurement [member] | Interest Rate Derivatives [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Foreign currency derivatives | (17) |
Level 2 of fair value hierarchy [member] | Recurring fair value measurement [member] |  |
IfrsStatementLineItems [Line Items] |  |
Financial assets, at fair value | 23 |
Foreign currency derivatives | (81) | $ (272)
Level 2 of fair value hierarchy [member] | Recurring fair value measurement [member] | Foreign Currency Contracts Derivative [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Foreign currency derivatives | (64) |
Level 2 of fair value hierarchy [member] | Recurring fair value measurement [member] | Interest Rate Derivatives [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Foreign currency derivatives | (17) |
Level 1 of fair value hierarchy [member] | Recurring fair value measurement [member] |  |
IfrsStatementLineItems [Line Items] |  |
Foreign currency derivatives | (1) |
Level 1 of fair value hierarchy [member] | Recurring fair value measurement [member] | Commodity Derivatives Liabilities [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Foreign currency derivatives | $ (40) |

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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 2022-03-24 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_25&doctype=Standard -URIDate 2022-03-24 + 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 2022-03-24 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_25&doctype=Standard -URIDate 2022-03-24 + Details
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