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Document and Entity Information
 6 Months Ended
Jun. 30, 2018
shares
Document and Entity Information  
Entity Registrant Name BANCO BILBAO VIZCAYA ARGENTARIA, S.A.
Entity Central Index Key 0000842180
Document Type 6-K
Document Period End Date Jun. 30, 2018
Amendment Flag false
Current Fiscal Year End Date --06-30
Entity a Well known Seasoned Issuer Yes
Entity a Voluntary Filer No
Entity Reporting Status Current Yes
Entity Filer Category Large Accelerated Filer
Entity Common Stock 6,667,886,580
Document Fiscal Period Focus FY
Document Fiscal Year Focus 2018