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Employee benefits (Tables) | 12 Months Ended
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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) | 2020 | 2021 |  | 2022
Pension plan based on multi-employer union plan | 126.8 |  | 161.7 |  |  | 181.2 |
Pension plans based on defined contribution and other plans | 55.8 |  | 67.5 |  |  | 74.7 |
Pension and retirement expenses | 182.6 |  | 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.

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- Definition Tabular disclosure of the costs related to the various types of retirement plans including defined benefit pension plan cost, defined contribution plan cost, other postretirement benefit plan cost, and net periodic benefit cost. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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