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v3.25.2

Basis of preparation and significant changes in the current reporting period - Additional information (Details) - EUR (€) € in Millions | 6 Months Ended | 12 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Basis of Preparation and Accounting Policies [Abstract] |  |  |
Reconciliation net result effect of adjustment after tax EU IAS 39 carve-out | € 786 | € 1,099 | € 1,099

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- Definition Reconciliation net result effect of adjustment after tax EU IAS 39 carve-out. + References No definition available. + Details
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