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Note 48 - Impairment or reversal of impairment on non-financial assets (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Impairment or reversal of impairment on non-financial assets      
Tangible assets, impairment or reversal of impairment € (5) € (42) € (143)
Intangible assets, impairment or reversal of impairment (83) (16) (3)
Other non-financial assets, impairment or reversal of impairment (51) (306) (375)
Total impairment (reversal of impairment) of non-financial assets € 138 € 363 € 521