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Note 55 - Other Information - Interest Income Breakdown By Geographical Area (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Interest Income Breakdown By Geographical Area      
Interest Income (Income Statement) € 29,831 € 29,296 € 27,708
Domestic Geography | Total [Member]      
Interest Income Breakdown By Geographical Area      
Interest Income (Income Statement) 4,952 5,093 5,962
Foreign Geography | European Union [Member]      
Interest Income Breakdown By Geographical Area      
Interest Income (Income Statement) 509 422 291
Foreign Geography | BBVA Eurozone [Member]      
Interest Income Breakdown By Geographical Area      
Interest Income (Income Statement) 391 239 291
Foreign Geography | No Eurozone [Member]      
Interest Income Breakdown By Geographical Area      
Interest Income (Income Statement) 117 183 0
Foreign Geography | Total [Member]      
Interest Income Breakdown By Geographical Area      
Interest Income (Income Statement) 24,879 24,203 21,745
Foreign Geography | Rest of countries BBVA S A [Member]      
Interest Income Breakdown By Geographical Area      
Interest Income (Income Statement) 24,370 23,781 21,455
Total Domestic Foreign [Member] | Total [Member]      
Interest Income Breakdown By Geographical Area      
Interest Income (Income Statement) € 29,831 € 29,296 € 27,708