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Note 15 Derivatives Hedge accounting and fair value changes of the hedged items in portfolio hedge of interest rate risk (Details) - EUR (€)
€ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclousre of derivative financial assets held for hedging [Line Items]      
Derivative financial assets held for hedging € 1,158 € 1,482 € 1,891 [1]
Accumulated fair value hedge adjustment on hedged item included in carrying amount, assets (65) (97) (148)
Derivative financial liabilities held for hedging 2,503 2,625 3,303 [1]
Accumulated fair value hedge adjustment on hedged item included in carrying amount, liabilities € 0 € 0 € 0
[1]
(1) Balances corresponding to 2022 have been restated according to IFRS 17 (see Note 1.3).