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Impairment (Details 4) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Producing Properties Relating To Oil And Gas Activities Brazil [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Business segment | E&P |  | E&P
Carrying amount | $ 376 |  |
Recoverable amount | $ 300 |  | $ 279
Asset With Recoverable Amount Close To Its Carrying Amount [Member] | C G U Marlim Sul [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Business segment | E&P |  |
Carrying amount | $ 5,544 |  |
Recoverable amount | 5,365 |  |
Sensitivity | (179) |  |
Assets With Impairment Losses [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Carrying amount | 14,516 | $ 8,972 |
Assets With Impairment Losses [Member] | C G U Marlim Sul [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Recoverable amount | 13,439 | 9,869 |
Sensitivity | $ (1,077) | $ 897 |
Assets With Impairment Losses [Member] | Producing Properties Relating To Oil And Gas Activities Brazil [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Business segment | E&P | E&P |
Assets With Impairment Losses [Member] | Second Refining Unit Of R N E S T [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Business segment | RTC | RTC |
Carrying amount | $ 882 | $ 882 |
Recoverable amount | 794 | 970 |
Sensitivity | $ (88) | $ 88 |
Assets With Impairment Losses [Member] | Itaborai Utilities [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Business segment | G&E | G&E |
Carrying amount | $ 777 | $ 777 |
Recoverable amount | 699 | 855 |
Sensitivity | (78) | 78 |
Producing Properties Relating To Oil And Gas Activities Brazil [Member] | C G U Marlim Sul [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Carrying amount | 7,313 | 7,313 |
Recoverable amount | 6,581 | 8,044 |
Sensitivity | $ (732) | $ 731 |

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- Definition The description of the reportable segment to which an individual asset belongs. [Refer: Impairment loss] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2022-03-24 -Paragraph 130 -Subparagraph c -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2022-en-r&anchor=para_130_c_ii&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of assets related to the exploration, evaluation, development or production of oil and gas. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 16 -IssueDate 2022-03-24 -Paragraph 37 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2022-en-r&anchor=para_37&doctype=Standard -URIDate 2022-03-24 + Details
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