v3.26.1
Income Tax - Summary of Reconciliation of Expected Income Tax Benefit to Actual Income (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Taxes [Abstract]      
Profit / (Loss) before tax € (1,050.8) € (677.7) € 1,186.1
Expected tax credit (330.0) (186.8) 321.8
Effects      
Deviation due to local tax basis 11.9 12.6 6.6
Deviation due to deviating income tax rate (Germany and foreign countries) (17.1) 6.6 (0.1)
Change in valuation allowance 68.3 (16.4) (14.3)
Effects from tax losses and tax credits 321.1 241.1 (66.5)
Change in deferred taxes due to tax rate change 2.7 9.1 (2.4)
Non-deductible expenses and other permanent differences 41.0 (49.1) 3.1
Non tax-effective income (5.0) (2.1) (0.6)
Non tax-effective share-based payment expenses (0.6) (37.2) 7.7
Tax-effective equity transaction costs (0.6) 0.0 0.0
Adjustment prior year taxes (9.8) 0.0 5.5
Non-tax effective bargain purchase 0.0 0.0 0.0
Other effects 3.4 9.8 (5.0)
Income taxes € 85.3 € (12.4) € 255.8
Effective tax rate (8.10%) 1.80% 21.60%