The amount of amortisation and impairment losses on intangible assets disposed of.

No definition available.

Name:	eqnr_AmortisationIntangibleAssetsOtherThanGoodwillOnDisposalOfIntangibleAssets
Namespace Prefix:	eqnr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Reversal of exploration expenses previously capitalised as intangible assets.

+ References

No definition available.

+ Details

Name:	eqnr_ReversalOfExplorationExpendituresPreviouslyCapitalised
Namespace Prefix:	eqnr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The increase in intangible assets other than goodwill resulting from acquisitions through business combinations. [Refer: Business combinations [member]; Intangible assets other than goodwill]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 38
-IssueDate 2019-01-01
-Paragraph 118
-Subparagraph e
-Clause i
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2019-en-r&anchor=para_118_e_i&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of additions to intangible assets other than goodwill, other than those acquired through business combinations. [Refer: Business combinations [member]; Intangible assets other than goodwill]

+ References

+ Details

Name:	ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of amortisation expense. Amortisation is the systematic allocation of depreciable amounts of intangible assets over their useful lives.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_AmortisationExpense
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The decrease in intangible assets and goodwill resulting from classification as held for sale or inclusion in a disposal group classified as held for sale. [Refer: Disposal groups classified as held for sale [member]; Intangible assets and goodwill]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 38
-IssueDate 2019-01-01
-Paragraph 118
-Subparagraph e
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2019-en-r&anchor=para_118_e_ii&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_DecreaseThroughClassifiedAsHeldForSaleIntangibleAssetsAndGoodwill
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The decrease in intangible assets and goodwill resulting from disposals. [Refer: Intangible assets and goodwill]

+ References

+ Details

Name:	ifrs-full_DisposalsIntangibleAssetsAndGoodwill
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount recognised as of the business combination's acquisition date for goodwill. [Refer: Goodwill; Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 3
-IssueDate 2019-01-01
-Paragraph B64
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2019-en-r&anchor=para_B64&doctype=Appendix&subtype=B
-URIDate 2019-03-27

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 3
-IssueDate 2019-01-01
-Paragraph IE72
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2019-en-r&anchor=para_IE72&doctype=Illustrative%20Examples
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_GoodwillRecognisedAsOfAcquisitionDate
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of impairment loss recognised in profit or loss for goodwill. [Refer: Impairment loss recognised in profit or loss; Goodwill]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2019-01-01
-Paragraph B67
-Subparagraph d
-Clause v
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2019-en-r&anchor=para_B67_d_v&doctype=Appendix&subtype=B
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of impairment loss recognised in profit or loss for intangible assets other than goodwill. [Refer: Impairment loss recognised in profit or loss; Intangible assets other than goodwill]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 38
-IssueDate 2019-01-01
-Paragraph 118
-Subparagraph e
-Clause iv
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2019-en-r&anchor=para_118_e_iv&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

- Definition

The increase (decrease) in intangible assets and goodwill resulting from the net exchange differences arising when the financial statements are translated from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Intangible assets and goodwill]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 38
-IssueDate 2019-01-01
-Paragraph 118
-Subparagraph e
-Clause vii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2019-en-r&anchor=para_118_e_vii&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The increase (decrease) in intangible assets and goodwill resulting from transfers. [Refer: Intangible assets and goodwill]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 38
-IssueDate 2019-01-01
-Paragraph 118
-Subparagraph e
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2019-en-r&anchor=para_118_e&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_IncreaseDecreaseThroughTransfersIntangibleAssetsAndGoodwill
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of intangible assets and goodwill held by the entity. [Refer: Goodwill; Intangible assets other than goodwill]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_IntangibleAssetsAndGoodwill
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The useful life, measured as period of time, used for intangible assets other than goodwill. [Refer: Intangible assets other than goodwill]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 38
-IssueDate 2019-01-01
-Paragraph 118
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2019-en-r&anchor=para_118_a&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	ifrs-full_SegmentsAxis=eqnr_ExplorationAndProductionNorwayMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_SegmentsAxis=eqnr_MarketingMidstreamAndProcessingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis=ifrs-full_GrossCarryingAmountMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis=ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis=eqnr_IntangibleExplorationExpensesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=eqnr_DryWellsAndUncommercialDiscoveriesAndUnconventionalOnshoreAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_GeographicalAreasAxis=eqnr_NorthAfricaSubSaharanAndEuropeAndAsiaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis=ifrs-full_IntangibleExplorationAndEvaluationAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis=ifrs-full_GoodwillMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis=ifrs-full_OtherIntangibleAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis=eqnr_SignatureBonusesAndAcquisitionCostsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=eqnr_UnconventionalAssetsMemberDomainMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_SegmentsAxis=eqnr_ExplorationAndProductionUsaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis=eqnr_CapitalisedWellCostsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_GeographicalAreasAxis=country_TZ
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Intangible assets (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Intangible assets (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Intangibles beginning		$ 10,738
Expensed exploration expenditures previously capitalised		(2,506)	$ (777)	$ (357)
Intangibles ending	$ 8,148	8,148	10,738
Exploration and Production Norway [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Goodwill related to business acquired in 2019	678	678
Marketing, Midstream and Processing (MMP) [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Goodwill related to business acquired in 2019	472	$ 472
Minimum [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Intangible assets with finite useful lives		10 years
Maximum [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Intangible assets with finite useful lives		20 years
Cost [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Intangibles beginning		$ 11,033	9,901
Additions through business combinations		0	1,080
Additions		491	1,571
Disposals at cost		(8)	(367)
Transfers		(89)	(213)
Expensed exploration expenditures previously capitalised		(2,506)	(777)
Impairment of goodwill		(42)	(164)
Assets reclassified to held for sale		(499)	0
Effect of changes in foreign exchange		123	3
Intangibles ending	8,504	8,504	11,033	9,901
Accumulated depreciation, amortisation and impairment [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Intangibles beginning		(295)	(229)
Amortisation and impairments for the year		(35)	(60)
Assets reclassified to held for sale		17
Amortisation and impairment losses disposed intangible assets		(6)	(6)
Effect of changes in foreign exchange		(3)	1
Intangibles ending	(356)	(356)	(295)	(229)
Exploration expenses [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Intangibles beginning		3,014
Intangibles ending	2,260	2,260	3,014
Exploration expenses [Member] \| Dry wells and uncommercial discoveries and unconventional onshore assets [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Impairments, intangible assets		657
Exploration expenses [Member] \| Europe and Asia and Sub Sahara areas [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Impairments, intangible assets			49
Exploration expenses [Member] \| Cost [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Intangibles beginning		3,014	2,685
Additions through business combinations		0	0
Additions		400	515
Disposals at cost		(7)	(7)
Transfers		(16)	(71)
Expensed exploration expenditures previously capitalised		(1,169)	(120)
Impairment of goodwill		0	0
Assets reclassified to held for sale		0	0
Effect of changes in foreign exchange		38	11
Intangibles ending	2,260	2,260	3,014	2,685
Acquisition costs related to oil and gas prospects [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Intangibles beginning		5,599
Intangibles ending	3,932	3,932	5,599
Acquisition costs related to oil and gas prospects [member] \| Cost [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Intangibles beginning		5,599	5,854
Additions through business combinations		0	0
Additions		67	900
Disposals at cost		0	(361)
Transfers		(73)	(143)
Expensed exploration expenditures previously capitalised		(1,337)	(657)
Impairment of goodwill		0	0
Assets reclassified to held for sale		(339)	0
Effect of changes in foreign exchange		16	5
Intangibles ending	3,932	3,932	5,599	5,854
Goodwill [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Intangibles beginning		1,458
Intangibles ending	1,481	1,481	1,458
Goodwill [member] \| Cost [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Intangibles beginning		1,458	565
Additions through business combinations		0	1,070
Additions		0	0
Disposals at cost		0	0
Transfers		0	0
Expensed exploration expenditures previously capitalised		0	0
Impairment of goodwill		(42)	(164)
Assets reclassified to held for sale		0	0
Effect of changes in foreign exchange		64	(12)
Intangibles ending	1,481	1,481	1,458	565
Other intangible assets [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Intangibles beginning		667
Intangibles ending	475	475	667
Impairments, intangible assets			41
Other intangible assets [member] \| Cost [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Intangibles beginning		962	797
Additions through business combinations		0	10
Additions		24	155
Disposals at cost		0	0
Transfers		0	0
Expensed exploration expenditures previously capitalised		0	0
Impairment of goodwill		0	0
Assets reclassified to held for sale		(160)	0
Effect of changes in foreign exchange		6	(1)
Intangibles ending	831	831	962	797
Other intangible assets [member] \| Accumulated depreciation, amortisation and impairment [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Intangibles beginning		(295)	(229)
Amortisation and impairments for the year		(35)	60
Assets reclassified to held for sale		17
Amortisation and impairment losses disposed intangible assets		(6)	(6)
Effect of changes in foreign exchange		(3)	1
Intangibles ending	(356)	(356)	(295)	$ (229)
Signature bonuses and acquisition costs [Member] \| Unconventional assets [Member] \| Exploration And Production USA [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Impairments, intangible assets		$ 680	$ 608
Capitalised well costs [member] \| Tanzania [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Impairments, intangible assets	$ 982