v3.26.1
Shareholder returns - (Details) - EUR (€)
€ / shares in Units, € in Millions
1 Months Ended 12 Months Ended
Feb. 28, 2026
Feb. 28, 2025
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
May 31, 2025
Aug. 31, 2024
May 31, 2024
Classes of share capital                
Shareholder returns     € 443.3 € 437.7 € 199.5      
Dividends paid per share € 0.193 € 0.223            
Recommended final dividend per share     € 0.195 € 0.277        
May 2024 share buyback program                
Classes of share capital                
Share Repurchase Program, Authorized, Amount               € 700.0
August 2024 share buyback program                
Classes of share capital                
Share Repurchase Program, Authorized, Amount             € 800.0  
May 2025 share buyback program                
Classes of share capital                
Share Repurchase Program, Authorized, Amount           € 750.0    
Percentage of buyback program completed     69.00%