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Employee Benefits - Trust Assets (Details)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Total for all subsidiaries    
Variable return:    
Plan asset investment for related parties, percentage 10.00%  
Federal government instruments of the respective countries | Bottom of range    
Variable return:    
Fund assets, percentage 30.00%  
Level 1    
Variable return:    
Trust assets fixed and variable return percentage 100.00% 100.00%
Level 1 | Traded securities    
Fixed return:    
Trust assets fixed return percentage 5.00% 4.00%
Level 1 | Bank instruments    
Fixed return:    
Trust assets fixed return percentage 14.00% 16.00%
Level 1 | Federal government instruments of the respective countries    
Fixed return:    
Trust assets fixed return percentage 47.00% 47.00%
Level 1 | Publicly traded shares    
Variable return:    
Trust assets variable return percentage 34.00% 33.00%