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Consolidated Balance Sheets (Parenthetical) - EUR (€) € in Millions | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
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FINANCIAL LIABILITIES DESIGNATED AT FAIR VALUE THROUGH PROFIT OR LOSS |  |  |
IFRS Statement [Line Items] |  |  |
Memorandum items: subordinated liabilities | € 0 | € 0 | € 0
FINANCIAL LIABILITIES AT AMORTIZED COST |  |  |
IFRS Statement [Line Items] |  |  |
Memorandum items: subordinated liabilities | € 29,287 | € 35,813 | € 30,912

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