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Note 49 Impairment Or Reversal Of Impairment On Non Financial Assets (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of Impairment Or Reversal Of Impairment On Non Financial Assets [Line Items]      
Impairment tangible assets € (29) € 16 € (53)
Impairment loss recognised in profit or loss, intangible assets and goodwill 15 26 25
Impairment or reversal of impairment on other non financial assets 13 12 55
Impairment or reversal of impairment on non financial assets € (1) € 54 € 27