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Document and Entity Information
 12 Months Ended
Dec. 31, 2020
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Document and Entity Information  
Entity Registrant Name BANCO BILBAO VIZCAYA ARGENTARIA, S.A.
Entity Central Index Key 0000842180
Document Type 20-F
Document Period End Date Dec. 31, 2020
Amendment Flag false
Current Fiscal Year End Date --12-31
Document Fiscal Year Focus 2020
Document Fiscal Period Focus FY
Entity Interactive Data Current Yes
Entity a Voluntary Filer No
Entity Current Reporting Status Yes
Entity Filer Category Large Accelerated Filer
Entity Shell Company false
Entity Emerging Growth Company false
Entity Common Stock 6,667,886,580
Entity a Well known Seasoned Issuer Yes
Document Annual Report true
Document Transition report false
Document Shell Company false
Icfr auditor attestation flag true
Document accounting standard International Financial Reporting Standards