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Fair value measured of assets and liabilities (Details) - USD ($) $ in Millions | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
DisclosureFairValueOfFinancialAssetsAndLiabilitiesLineItems [Line Items] |  |
Financial liabilities, at fair value | $ (280) | $ (273)
Recurring fair value measurement [member] |  |
DisclosureFairValueOfFinancialAssetsAndLiabilitiesLineItems [Line Items] |  |
Financial asset at fair value | 665 | 673
Recurring fair value measurement [member] | Foreign Currency Contracts Derivative [Member] |  |
DisclosureFairValueOfFinancialAssetsAndLiabilitiesLineItems [Line Items] |  |
Financial liabilities, at fair value | (273) |
Recurring fair value measurement [member] | Level 1 of fair value hierarchy [member] |  |
DisclosureFairValueOfFinancialAssetsAndLiabilitiesLineItems [Line Items] |  |
Financial asset at fair value | 661 | 650
Financial liabilities, at fair value |  | (1)
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] |  |
DisclosureFairValueOfFinancialAssetsAndLiabilitiesLineItems [Line Items] |  |
Financial asset at fair value | 4 | 23
Financial liabilities, at fair value | (280) | $ (272)
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Foreign Currency Contracts Derivative [Member] |  |
DisclosureFairValueOfFinancialAssetsAndLiabilitiesLineItems [Line Items] |  |
Financial liabilities, at fair value | (273) |
Recurring fair value measurement [member] | Marketable Securities [Member] |  |
DisclosureFairValueOfFinancialAssetsAndLiabilitiesLineItems [Line Items] |  |
Financial asset at fair value | 622 |
Recurring fair value measurement [member] | Marketable Securities [Member] | Level 1 of fair value hierarchy [member] |  |
DisclosureFairValueOfFinancialAssetsAndLiabilitiesLineItems [Line Items] |  |
Financial asset at fair value | 622 |
Recurring fair value measurement [member] | Commodity Derivative [Member] |  |
DisclosureFairValueOfFinancialAssetsAndLiabilitiesLineItems [Line Items] |  |
Financial asset at fair value | 43 |
Recurring fair value measurement [member] | Commodity Derivative [Member] | Level 1 of fair value hierarchy [member] |  |
DisclosureFairValueOfFinancialAssetsAndLiabilitiesLineItems [Line Items] |  |
Financial asset at fair value | 39 |
Recurring fair value measurement [member] | Commodity Derivative [Member] | Level 2 of fair value hierarchy [member] |  |
DisclosureFairValueOfFinancialAssetsAndLiabilitiesLineItems [Line Items] |  |
Financial asset at fair value | 4 |
Recurring fair value measurement [member] | Interest Rate Derivatives [Member] |  |
DisclosureFairValueOfFinancialAssetsAndLiabilitiesLineItems [Line Items] |  |
Financial liabilities, at fair value | (7) |
Recurring fair value measurement [member] | Interest Rate Derivatives [Member] | Level 2 of fair value hierarchy [member] |  |
DisclosureFairValueOfFinancialAssetsAndLiabilitiesLineItems [Line Items] |  |
Financial liabilities, at fair value | $ (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 2021-01-01 -Paragraph 25 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_25&doctype=Standard -URIDate 2021-03-24 + 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 2021-01-01 -Paragraph 25 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_25&doctype=Standard -URIDate 2021-03-24 + Details
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