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Cover page
 12 Months Ended
Dec. 31, 2021
shares
Document and Entity Information [abstract]  
Document Type 20-F
Document Annual Report true
Document Period End Date Dec. 31, 2021
Entity Interactive Data Current Yes
Entity Incorporation State Country Code Q8
Entity File Number 1-15200
Entity Registrant Name Equinor ASA
Document Fiscal Year Focus 2021
Document Fiscal Period Focus FY
Current Fiscal Year End Date --12-31
Entity Current Reporting Status Yes
Entity Address Address Line 1 Forusbeen 50
Entity Address City Or Town Stavanger
Entity Address Postal Zip Code N-4035
Entity Address Country NO
Entity Filer Category Large Accelerated Filer
Entity Voluntary Filers No
Entity Well Known Seasoned Issuer Yes
Security 12g Title None
Entity Common Stock Shares Outstanding 3,232,116,311
Document Transition Report false
Entity Emerging Growth Company false
Entity Shell Company false
Entity Central Index Key 0001140625
Document Registration Statement false
Amendment Flag false
Document Accounting Standard International Financial Reporting Standards
Shell Company Report false
Icfr Auditor Attestation Flag true
Auditor firm id 1572
Auditor Name Ernst & Young AS
Auditor Location Stavanger, Norway
American Depositary Shares [member]  
Document and Entity Information [abstract]  
Trading Symbol EQNR
Security 12g Title American Depositary Shares
Security Exchange Name NYSE
Ordinary shares, nominal value of NOK 2.50 each [member]  
Document and Entity Information [abstract]  
Trading Symbol EQNR
Security 12g Title Ordinary shares, nominal value of NOK 2.50
Security Exchange Name NYSE
Business Contact [member]  
Document and Entity Information [abstract]  
Contact Personnel Name Ulrica Fearn
Entity Address Address Line 1 Forusbeen 50
Entity Address City Or Town Stavanger
Entity Address Postal Zip Code N-4035
Entity Address Country NO
City Area Code 47
Local Phone Number 5199-0000
Contact Personnel Fax Number 5199-0050