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Provisions - Summary of Changes in Group's Provisions (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Non current [member] |  |  |
Disclosure of provisions [line items] |  |  |
Provisions beginning balance | $ 2,519 | $ 2,219 | $ 2,421
Increases charged to expenses | 471 | 662 | 323
Decreases charged to income | (396) | (136) | (145)
Applications due to utilization | (12) | (7) | 0
Reclassifications and other movements | 53 | (184) | (264)
Net exchange and Translation effect | (63) | (35) | (116)
Result from net monetary position | (1) | 0 | 0
Provisions ending balance | 2,571 | 2,519 | 2,219
Non current [member] | Provision for lawsuits and contingencies [member] |  |  |
Disclosure of provisions [line items] |  |  |
Provisions beginning balance | 872 | 599 | 733
Increases charged to expenses | 187 | 400 | 119
Decreases charged to income | (354) | (42) | (80)
Applications due to utilization | (12) | (7) | 0
Reclassifications and other movements | (66) | (47) | (71)
Net exchange and Translation effect | (55) | (31) | (102)
Result from net monetary position | (1) | 0 | 0
Provisions ending balance | 571 | 872 | 599
Non current [member] | Provision for environmental liabilities [member] |  |  |
Disclosure of provisions [line items] |  |  |
Provisions beginning balance | 96 | 66 | 64
Increases charged to expenses | 69 | 105 | 46
Decreases charged to income | (1) | 0 | (2)
Reclassifications and other movements | (60) | (71) | (28)
Net exchange and Translation effect | (8) | (4) | (14)
Provisions ending balance | 96 | 96 | 66
Non current [member] | Provision for Hydrocarbon Wells Abandonment Obligations [member] |  |  |
Disclosure of provisions [line items] |  |  |
Provisions beginning balance | 1,551 | 1,554 | 1,624
Increases charged to expenses | 215 | 157 | 158
Decreases charged to income | (41) | (94) | (63)
Reclassifications and other movements | 179 | (66) | (165)
Net exchange and Translation effect | 0 | 0 | 0
Provisions ending balance | 1,904 | 1,551 | 1,554
Current [member] |  |  |
Disclosure of provisions [line items] |  |  |
Provisions beginning balance | 188 | 73 | 91
Increases charged to expenses | 0 | 1 | 3
Decreases charged to income | 0 | (37) | (14)
Applications due to utilization | (139) | (48) | (33)
Reclassifications and other movements | 184 | 211 | 42
Net exchange and Translation effect | (34) | (12) | (16)
Provisions ending balance | 199 | 188 | 73
Current [member] | Provision for lawsuits and contingencies [member] |  |  |
Disclosure of provisions [line items] |  |  |
Provisions beginning balance | 22 | 23 | 21
Increases charged to expenses | 0 | 1 | 3
Decreases charged to income | 0 | (37) | (14)
Applications due to utilization | (35) | (7) | (2)
Reclassifications and other movements | 35 | 42 | 15
Net exchange and Translation effect | 0 | 0 | 0
Provisions ending balance | 22 | 22 | 23
Current [member] | Provision for environmental liabilities [member] |  |  |
Disclosure of provisions [line items] |  |  |
Provisions beginning balance | 68 | 31 | 32
Applications due to utilization | (48) | (22) | (13)
Reclassifications and other movements | 60 | 71 | 28
Net exchange and Translation effect | (34) | (12) | (16)
Provisions ending balance | 46 | 68 | 31
Current [member] | Provision for Hydrocarbon Wells Abandonment Obligations [member] |  |  |
Disclosure of provisions [line items] |  |  |
Provisions beginning balance | 98 | 19 | 38
Applications due to utilization | (56) | (19) | (18)
Reclassifications and other movements | 89 | 98 | (1)
Net exchange and Translation effect | 0 | 0 | 0
Provisions ending balance | $ 131 | $ 98 | $ 19

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- Definition The increase (decrease) in other provisions resulting from foreign currency exchange rate changes on provisions measured in a currency different from the entity's presentation currency. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 37 -IssueDate 2022-03-24 -Paragraph 84 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=37&code=ifrs-tx-2022-en-r&anchor=para_84&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The increase (decrease) in other provisions resulting from transfers and changes that the entity does not separately disclose in the same statement or note. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 37 -IssueDate 2022-03-24 -Paragraph 84 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=37&code=ifrs-tx-2022-en-r&anchor=para_84&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of liabilities of uncertain timing or amount, including provisions for employee benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 54 -Subparagraph l -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_54_l&doctype=Standard -URIDate 2022-03-24 + Details
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