v3.25.4
Share-based plans - Information on holdings under share-based plans (Details) - shares
12 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
LTIP 2025+        
Share-based plans        
Granted   1,391,945    
MB LTIP 2024+        
Share-based plans        
Granted   230,873 304,043  
MB LTIP 2024+ | Management Board        
Share-based plans        
Granted   230,873 266,497  
LTIP 2024+        
Share-based plans        
Granted     1,908,038  
LTIP 2022+        
Share-based plans        
Granted       1,460,049
MB LTIP 2020        
Share-based plans        
Granted       283,624
Cash-settled plans | LTIP 2025+        
Share-based plans        
Granted   132,711    
Number of performance shares held at end of period 132,711 132,711    
Cash-settled plans | LTIP 2025+ | Plan participants other than the members of the Management Board        
Share-based plans        
Number of performance shares held at end of period 132,711 132,711    
Cash-settled plans | MB LTIP 2024+        
Share-based plans        
Number of performance shares held at beginning of period   304,043    
Number of performance shares held at end of period 258,501 258,501 304,043  
Cash-settled plans | MB LTIP 2024+ | Management Board        
Share-based plans        
Number of performance shares held at beginning of period   266,497    
Number of performance shares held at end of period 220,955 220,955 266,497  
Cash-settled plans | MB LTIP 2024+ | Plan participants other than the members of the Management Board        
Share-based plans        
Number of performance shares held at beginning of period   37,546    
Number of performance shares held at end of period 37,546 37,546 37,546  
Cash-settled plans | LTIP 2024+        
Share-based plans        
Number of performance shares held at beginning of period   1,906,842    
Number of performance shares held at end of period 1,768,618 1,768,618 1,906,842  
Cash-settled plans | LTIP 2024+ | Plan participants other than the members of the Management Board        
Share-based plans        
Number of performance shares held at beginning of period   1,906,842    
Number of performance shares held at end of period 1,768,618 1,768,618 1,906,842  
Cash-settled plans | LTIP 2022+        
Share-based plans        
Number of performance shares held at beginning of period   2,691,190    
Number of performance shares held at end of period 1,205,535 1,205,535 2,691,190  
Cash-settled plans | LTIP 2022+ | Plan participants other than the members of the Management Board        
Share-based plans        
Number of performance shares held at beginning of period   2,691,190    
Number of performance shares held at end of period 1,205,535 1,205,535 2,691,190  
Cash-settled plans | MB LTIP 2020        
Share-based plans        
Number of performance shares held at beginning of period   504,113    
Number of performance shares held at end of period 240,772 240,772 504,113  
Cash-settled plans | MB LTIP 2020 | Management Board        
Share-based plans        
Number of performance shares held at beginning of period   236,574    
Number of performance shares held at end of period 114,395 114,395 236,574  
Cash-settled plans | MB LTIP 2020 | Plan participants other than the members of the Management Board        
Share-based plans        
Number of performance shares held at beginning of period   267,539    
Number of performance shares held at end of period 126,377 126,377 267,539  
Equity-settled plans | LTIP 2025+        
Share-based plans        
Granted   1,259,234    
Number of performance shares held at end of period 1,259,234 1,259,234    
Weighted average remaining contractual life 2 years 7 months 6 days      
Equity-settled plans | MB LTIP 2024+        
Share-based plans        
Granted   230,873    
Forfeited   (36,643)    
Number of performance shares held at end of period 194,230 194,230    
Weighted average remaining contractual life 3 years 2 months 1 day