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Related parties - narrative (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Jul. 31, 2021
Disclosure of transactions between related parties [line items] |  |  |  |
Amounts payable, related party transactions | $ 0 | $ 0 | $ 0 |
Share buyback programme [member] | Share-based Payment Arrangement, Tranche One [member] |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Agreement to buy treasury shares | $ 600,000,000 |  |  | $ 300,000,000
Equinor ASA [member] |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Ownership interests held by shareholder | 67.00% |  |  |
Equinor ASA [member] | Lease liabilities [member] |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Amounts payable, related party transactions | $ 284,000,000 |  |  |
Related Party Lease Contract Term | The lease contracts extend to the years 2034 and 2037 |  |  |
Equinor ASA [member] | Gassco AS [member] |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Settlement of liabilities by entity on behalf of related party, related party transactions | $ 1,030,000,000.000 | 896,000,000 | 1,076,000,000.000 |
Norwegian State [member] |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Amounts receivable, related party transactions | 435,000,000 | 169,000,000 |  |
Norwegian State [member] | Oil and gas assets [member] |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Purchases of of goods with related party | 9,572,000,000 | 5,108,000,000 | 7,505,000,000 |
Norwegian State [member] | Tjeldbergodden [member] |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Purchases of of goods with related party | $ 88,000,000.000 | $ 18,000,000.000 | $ 36,000,000.000 |
Folketrygdfondet [member] |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Ownership interests held by shareholder | 3.70% |  |  |

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- Definition The total value of treasury shares agreed upon to be redeemed in the future. + References No definition available. + Details
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- Definition The proportion of ownership interest held by a shareholder of the entity. + References No definition available. + Details
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- Definition The lease contracts with related party, terms. + References No definition available. + Details
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- Definition The amounts payable resulting from related party transactions. [Refer: Related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2021-01-01 -Paragraph 20 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&anchor=para_20&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2021-01-01 -Paragraph 18 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&anchor=para_18_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amounts receivable resulting from related party transactions. [Refer: Related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2021-01-01 -Paragraph 20 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&anchor=para_20&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2021-01-01 -Paragraph 18 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&anchor=para_18_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of goods purchased by the entity in related party transactions. [Refer: Related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 24 -IssueDate 2021-01-01 -Paragraph 21 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&anchor=para_21_a&doctype=Standard -URIDate 2021-03-24 + Details
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