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Impairment (Details 2) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
IfrsStatementLineItems [Line Items] |  |  |
Impairment losses reversals | $ 2,680 | $ 1,315 | $ (3,190)
Property Plant And Equipment And Intangible Assets [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Impairment losses reversals | (3,147) | (1,164) | 3,415
Property Plant And Equipment And Intangible Assets [Member] | Producing Properties Relating To Oil And Gas Activities In Brazil Several Cgus [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Carrying amount | 8,332 | 8,307 | 23,734
Recoverable amount | 6,108 | 7,747 | 36,396
Impairment losses reversals | $ (2,217) | $ (628) | $ 3,373
Business segment | E&P | E&P | E&P
Property Plant And Equipment And Intangible Assets [Member] | Second Refining Unit In R N E S T [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Carrying amount | $ 943 | $ 792 | $ 404
Recoverable amount | 455 | 882 | 767
Impairment losses reversals | $ (486) | $ 89 | $ 359
Business segment | RT&M | RT&M | RT&M
Property Plant And Equipment And Intangible Assets [Member] | Oil And Gas Exploratory Assets [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Carrying amount | $ 371 |  |
Impairment losses reversals | $ (364) |  |
Business segment | E&P |  |
Property Plant And Equipment And Intangible Assets [Member] | Others [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Impairment losses reversals | $ (80) | $ (5) | $ (67)
Business segment | Several | Several | Several
Property Plant And Equipment And Intangible Assets [Member] | Oil And Gas Production And Drilling Equipment In Country Of Brazil [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Carrying amount |  | $ 486 | $ 250
Recoverable amount |  | 7 |
Impairment losses reversals |  | $ (478) | $ (250)
Business segment |  | E&P | E&P
Property Plant And Equipment And Intangible Assets [Member] | Itaborai Utilities [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Carrying amount |  | $ 919 |
Recoverable amount |  | 777 |
Impairment losses reversals |  | $ (142) |
Business segment |  | G&LCE |

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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 2023-01-01 -Paragraph 130 -Subparagraph c -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2023-en-r&anchor=para_130_c_ii&doctype=Standard -URIDate 2023-03-23 + Details
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