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Nota 21 - Non-current assets and disposal groups classified as held for sale. Non-current assets and disposal groups classified as held for sale. Breakdown by items (Details) - EUR (€)
€ in Millions
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Non-current Assets Or Disposal Groups Classified As Held For Sale      
Non Current Assets Or Disposal Groups Clasified As Held For Sale € 2,001 € 23,853 € 3,603
Foreclosure [Member] | Residential Use [Member]      
Non-current Assets Or Disposal Groups Classified As Held For Sale      
Non Current Assets Or Disposal Groups Clasified As Held For Sale 1,072 1,924 2,326
Foreclosure [Member] | Tertiary Use [Member]      
Non-current Assets Or Disposal Groups Classified As Held For Sale      
Non Current Assets Or Disposal Groups Clasified As Held For Sale 182 491 574
Foreclosure [Member] | Agricultural Use [Member]      
Non-current Assets Or Disposal Groups Classified As Held For Sale      
Non Current Assets Or Disposal Groups Clasified As Held For Sale € 19 € 29 € 41