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Right-of-use assets and lease liabilities - Narrative (Details)
€ in Millions
12 Months Ended
Dec. 31, 2024
EUR (€)
Right-of-use assets operating lease category [Line Items]  
Lease liability, increase € 78.1
Increase (decrease) in lease liability through new finance leases € 16.9
Operating lease, term of contract 70 years
Properties  
Right-of-use assets operating lease category [Line Items]  
Finance lease asset € 32.0