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Employee benefits (Tables)
12 Months Ended
Dec. 31, 2022
Retirement Benefits [Abstract]  
Schedule of Pension and Retirement Expenses
Our pension and retirement expenses for all employees for the years ended December 31, 2022, 2021 and 2020, were:
Year ended December 31 (€, in millions)202020212022
Pension plan based on multi-employer union plan126.8 161.7 181.2 
Pension plans based on defined contribution and other plans55.8 67.5 74.7 
Pension and retirement expenses182.6 229.2 255.9 
The accrued pension premiums were €53.2 million as at December 31, 2022 and €10.8 million as at December 31, 2021.