Transfers of Financial Assets - Additional Information (Detail) - EUR (€) € in Billions	Dec. 31, 2022	Dec. 31, 2021
Disclosure of financial assets [line items]
Amount of collateral pledged for derivative transactions	€ 4.7	€ 2.3

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

No definition available.

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