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Provision for decommissioning costs (Details) - USD ($) $ in Millions | Jun. 30, 2023 | Dec. 31, 2022 | Jun. 30, 2022 | Dec. 31, 2021
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IfrsStatementLineItems [Line Items] |  |  |  |
Provision for decommissioning costs | $ 20,103 | $ 18,600 | $ 15,474 | $ 15,619
Onshore [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Provision for decommissioning costs | 455 | 418 |  |
Shallow Waters [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Provision for decommissioning costs | 4,844 | 4,399 |  |
Deep And Ultradeep Postsalt [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Provision for decommissioning costs | 10,622 | 9,988 |  |
Pre Salt [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Provision for decommissioning costs | $ 4,182 | $ 3,795 |  |

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- Definition The amount of provisions other than provisions for employee benefits. [Refer: Provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2023-01-01 -Paragraph 84 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=37&code=ifrs-tx-2023-en-r&anchor=para_84_a&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 78 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_78_d&doctype=Standard -URIDate 2023-03-23 + Details
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- Details
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