v3.26.1
Income Taxes - Summary of Reconciliation Between Standard and Effective Income Tax (Detail) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Reconciliation between standard and effective income tax:      
Result before tax from continuing operations € 1,045 € 660 € (391)
Income tax calculated using weighted average applicable statutory tax rates (187) (119) 94
Differences due to the effects of:      
Non-taxable income 76 44 39
Non-tax-deductible expenses (9) (12) (12)
Changes in tax rate/base (3) 0 (1)
Different tax rates on overseas earnings (3) (4) (3)
Tax credits 36 41 34
Other taxes (31) (9)  
Adjustments to prior years 35 (9) 36
Changes in deferred tax assets 10 1 (9)
Non-recognition of deferred tax assets (61) (28) (20)
Tax effect of profit / (losses) from joint ventures and associates 75 110 47
Other (2) 1 3
Total differences 123 135 115
Income tax benefit / (charge) € (65) € 16 € 209