Financial Assets and Financial Liabilities - Summary of Equity Securities Measured at Fair Value Through Other Comprehensive Income (Details) - EUR (€) € in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure of financial assets [line items]
Net gain on equity instruments designated at fair value through other comprehensive income	€ 3.7	€ 10.5	€ 0.0
Net gain on equity instruments designated at fair value through other comprehensive income
Disclosure of financial assets [line items]
Net gain on equity instruments designated at fair value through other comprehensive income	€ 3.7	€ 10.5

The amount of other comprehensive income, net of tax, related to gains (losses) from changes in the fair value of investments in equity instruments that the entity has designated at fair value through other comprehensive income applying paragraph 5.7.5 of IFRS 9. [Refer: Other comprehensive income]

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