v3.25.4
PERSONNEL EXPENSES AND DEFERRED EMPLOYEE BENEFITS - Terms and Conditions of Grants (Details)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Executive Office Plan | Environmental, social and governance ("ESG")        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent) 20.00%      
Executive Office Plan | Climate Action        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent) 5.00%      
Executive Office Plan | Health and safety ("H&S")        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent) 15.00%      
Executive Office and CFO Plan | Environmental, social and governance ("ESG")        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent) 30.00%      
Executive Officers other than CFO | Health and safety ("H&S")        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent) 15.00%      
Performance Share Units (PSUs) | Executive Office Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award performance period   3 years 3 years 3 years
Performance Share Units (PSUs) | Executive Office Plan | Executive Chariman        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Value of grant at grant date, percentage of base salary (in percent)   180.00% 120.00% 120.00%
Performance Share Units (PSUs) | Executive Office Plan | CEO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Value of grant at grant date, percentage of base salary (in percent)   180.00% 120.00% 120.00%
Performance Share Units (PSUs) | Executive Office and CFO Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award performance period 3 years      
Performance Share Units (PSUs) | Executive Office and CFO Plan | Climate Action        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent) 10.00%      
Performance Share Units (PSUs) | Executive Office and CFO Plan | Health and safety ("H&S")        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent) 20.00%      
Performance Share Units (PSUs) | Executive Office and CFO Plan | Executive Chariman        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Value of grant at grant date, percentage of base salary (in percent) 180.00%      
Performance Share Units (PSUs) | Executive Office and CFO Plan | CEO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Value of grant at grant date, percentage of base salary (in percent) 180.00%      
Performance Share Units (PSUs) | Executive Office and CFO Plan | Chief Financial Officer        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Value of grant at grant date, percentage of base salary (in percent) 110.00%      
Performance Share Units (PSUs) | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award performance period 3 years      
Performance Share Units (PSUs) | Executive Officers Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award performance period   3 years 3 years 3 years
Performance Share Units (PSUs) | TSR vs peer group | Executive Office Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent)   50.00% 50.00% 50.00%
Performance Share Units (PSUs) | TSR vs peer group | Executive Office and CFO Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent) 50.00%      
Performance Share Units (PSUs) | TSR vs peer group | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent) 40.00% 40.00%    
Performance Share Units (PSUs) | TSR vs peer group | Executive Officers Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent)     40.00% 40.00%
Performance Share Units (PSUs) | EPS vs peer group | Executive Office Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent)   20.00% 20.00% 20.00%
Performance Share Units (PSUs) | EPS vs peer group | Executive Office and CFO Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent) 20.00%      
Performance Share Units (PSUs) | TSR vs. peer group, threshold | Executive Office Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, threshold percentage (in percent)       100.00%
Vesting percentage (in percent)       100.00%
Performance Share Units (PSUs) | TSR vs. peer group, threshold | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, threshold percentage (in percent) 80.00%      
Vesting percentage (in percent) 50.00%      
Performance Share Units (PSUs) | TSR vs. peer group, threshold | Executive Officers Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, threshold percentage (in percent)   80.00%    
Vesting percentage (in percent) 50.00%      
Performance Share Units (PSUs) | EPS vs peer group, threshold | Executive Office Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, threshold percentage (in percent)       100.00%
Vesting percentage (in percent)       100.00%
Performance Share Units (PSUs) | TSR vs peer group, target | Executive Office Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, target percentage (in percent)   100.00% 100.00% 120.00%
Vesting percentage (in percent)       150.00%
Performance Share Units (PSUs) | TSR vs peer group, target | Executive Office and CFO Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, target percentage (in percent) 100.00%      
Performance Share Units (PSUs) | TSR vs peer group, target | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, target percentage (in percent) 100.00% 100.00%    
Vesting percentage (in percent) 100.00% 100.00%    
Performance Share Units (PSUs) | TSR vs peer group, target | Executive Officers Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, target percentage (in percent)     100.00% 100.00%
Vesting percentage (in percent)     100.00% 100.00%
Performance Share Units (PSUs) | EPS vs peer group, target | Executive Office Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, threshold percentage (in percent)     100.00%  
Award vesting performance, target percentage (in percent)       120.00%
Vesting percentage (in percent)     100.00% 150.00%
Performance Share Units (PSUs) | ESG | Executive Office Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent)       30.00%
Award vesting performance, target percentage (in percent)       100.00%
Performance Share Units (PSUs) | ESG | Executive Office Plan | Environmental, social and governance ("ESG")        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent)   30.00% 30.00%  
Performance Share Units (PSUs) | ESG | Executive Office Plan | Climate Action        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent)   10.00% 10.00% 10.00%
Performance Share Units (PSUs) | ESG | Executive Office Plan | D&I        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent)   10.00% 10.00% 10.00%
Performance Share Units (PSUs) | ESG | Executive Office Plan | Health and safety ("H&S")        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent)   10.00% 10.00% 10.00%
Performance Share Units (PSUs) | ESG | Executive Office and CFO Plan | Environmental, social and governance ("ESG")        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent) 30.00%      
Performance Share Units (PSUs) | ESG | Executive Office and CFO Plan | Climate Action        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent) 10.00%      
Performance Share Units (PSUs) | ESG | Executive Office and CFO Plan | Health and safety ("H&S")        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent) 20.00%      
Performance Share Units (PSUs) | ESG | Executive Officers other than CFO | Environmental, social and governance ("ESG")        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent) 20.00% 20.00%    
Performance Share Units (PSUs) | ESG | Executive Officers other than CFO | Climate Action        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent) 5.00% 5.00%    
Performance Share Units (PSUs) | ESG | Executive Officers other than CFO | D&I        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent)   5.00%    
Performance Share Units (PSUs) | ESG | Executive Officers other than CFO | Health and safety ("H&S")        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent)   10.00%    
Performance Share Units (PSUs) | ESG | Executive Officers Plan | Environmental, social and governance ("ESG")        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent)     20.00% 20.00%
Performance Share Units (PSUs) | ESG | Executive Officers Plan | Climate Action        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent)     5.00% 5.00%
Performance Share Units (PSUs) | ESG | Executive Officers Plan | D&I        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent)     5.00% 5.00%
Performance Share Units (PSUs) | ESG | Executive Officers Plan | Health and safety ("H&S")        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent)     10.00% 10.00%
Performance Share Units (PSUs) | ESG, target | Executive Office Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, target percentage (in percent)   100.00% 100.00% 120.00%
Performance Share Units (PSUs) | ESG, target | Executive Office and CFO Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, target percentage (in percent) 100.00%      
Vesting percentage (in percent) 100.00%      
Performance Share Units (PSUs) | ESG, target | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, target percentage (in percent) 100.00%      
Vesting percentage (in percent) 100.00%      
Performance Share Units (PSUs) | ESG, target | Executive Officers Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, target percentage (in percent)   100.00% 100.00% 100.00%
Vesting percentage (in percent)   100.00% 100.00% 100.00%
Performance Share Units (PSUs) | TSR vs. peer group, stretch | Executive Office Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, stretch percentage (in percent)   120.00% 120.00%  
Performance Share Units (PSUs) | TSR vs. peer group, stretch | Executive Office and CFO Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, stretch percentage (in percent) 120.00%      
Performance Share Units (PSUs) | TSR vs. peer group, stretch | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent) 150.00% 150.00%    
Award vesting performance, stretch percentage (in percent) 120.00% 120.00%    
Performance Share Units (PSUs) | TSR vs. peer group, stretch | Executive Officers Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent)     150.00% 150.00%
Award vesting performance, stretch percentage (in percent)     120.00% 120.00%
Performance Share Units (PSUs) | Gap to competition | Executive Officers Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent)     40.00% 40.00%
Performance Share Units (PSUs) | Gap to competition, target | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, threshold percentage (in percent)   50.00%    
Vesting percentage (in percent) 100.00% 100.00%    
Performance Share Units (PSUs) | Gap to competition, target | Executive Officers Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, target percentage (in percent)     100.00% 100.00%
Vesting percentage (in percent)     100.00% 100.00%
Performance Share Units (PSUs) | Gap to competition, stretch | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent) 150.00% 150.00%    
Performance Share Units (PSUs) | Gap to competition, stretch | Executive Officers Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent)     150.00% 150.00%
Award vesting performance, stretch percentage (in percent)       120.00%
Performance Share Units (PSUs) | ESG, stretch | Executive Office Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, target percentage (in percent)     120.00%  
Vesting percentage (in percent)   150.00% 150.00%  
Award vesting performance, stretch percentage (in percent)   120.00%    
Performance Share Units (PSUs) | ESG, stretch | Executive Office and CFO Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent) 150.00%      
Award vesting performance, stretch percentage (in percent) 120.00%      
Performance Share Units (PSUs) | ESG, stretch | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent) 150.00%      
Award vesting performance, stretch percentage (in percent) 120.00%      
Performance Share Units (PSUs) | ESG, stretch | Executive Officers Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent)   150.00% 150.00% 150.00%
Award vesting performance, stretch percentage (in percent)   120.00% 120.00% 120.00%
Performance Share Units (PSUs) | TSR vs performance index, target | Executive Office Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent)   100.00% 100.00% 150.00%
Performance Share Units (PSUs) | TSR vs performance index, target | Executive Office and CFO Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent) 100.00%      
Performance Share Units (PSUs) | TSR vs performance index, threshold | Executive Office Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent)     100.00% 100.00%
Performance Share Units (PSUs) | Performance of ROCE | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Percentage vesting condition contributes to calculation of grant (in percent) 40.00% 40.00%    
Performance Share Units (PSUs) | Performance of ROCE, stretch level | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, target percentage (in percent) 12.00%      
Performance Share Units (PSUs) | Performance of ROCE, stretch level | Executive Officers Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, stretch percentage (in percent)   133.00% 133.00%  
Performance Share Units (PSUs) | Performance of ROCE, target | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, target percentage (in percent) 9.00% 100.00%    
Performance Share Units (PSUs) | Gap to competition, threshold | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent) 50.00%      
Performance Share Units (PSUs) | Gap to competition, threshold | Executive Officers Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, threshold percentage (in percent)     50.00%  
Performance Share Units (PSUs) | Vesting Based on TSR Compared To Performance Index, Ceiling Level | Executive Office Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent)   200.00%    
Performance Share Units (PSUs) | Vesting Based on TSR Compared To Performance Index, Ceiling Level | Executive Office and CFO Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent) 200.00%      
Performance Share Units (PSUs) | Vesting Based On ESG, Ceiling Level | Executive Office Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting rights, performance ceiling percentage   1.40    
Vesting percentage (in percent)   200.00%    
Performance Share Units (PSUs) | Vesting Based On ESG, Ceiling Level | Executive Office and CFO Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting rights, performance ceiling percentage 1.40      
Vesting percentage (in percent) 200.00%      
Performance Share Units (PSUs) | Vesting Based On ESG, Ceiling Level | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting rights, performance ceiling percentage 1.40      
Vesting percentage (in percent) 200.00%      
Performance Share Units (PSUs) | Vesting Based On ESG, Ceiling Level | Executive Officers Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting rights, performance ceiling percentage   1.40    
Vesting percentage (in percent)   200.00%    
Performance Share Units (PSUs) | Vesting Based on TSR Compared To Peer Group, Ceiling Level | Executive Office Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting rights, performance ceiling percentage   1.40    
Performance Share Units (PSUs) | Vesting Based on TSR Compared To Peer Group, Ceiling Level | Executive Office and CFO Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting rights, performance ceiling percentage 1.40      
Performance Share Units (PSUs) | Vesting Based on TSR Compared To Peer Group, Ceiling Level | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting rights, performance ceiling percentage   1.40    
Vesting percentage (in percent) 200.00%      
Performance Share Units (PSUs) | Vesting Based on TSR Compared To Peer Group, Ceiling Level | Executive Officers Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent) 140.00% 200.00%    
Performance Share Units (PSUs) | Vesting Based on Gap To Competition, Ceiling Level | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent) 200.00%      
Performance Share Units (PSUs) | Vesting Based on Gap To Competition, Ceiling Level | Executive Officers Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent)   200.00%    
Performance Share Units (PSUs) | Vesting Based On Performance Of ROCE, Ceiling Level | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting rights, performance ceiling percentage 0.14      
Performance Share Units (PSUs) | Vesting Based On Performance Of ROCE, Ceiling Level | Executive Officers Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting rights, performance ceiling percentage   1.55    
Performance Share Units (PSUs) | Vesting Based On ESG, Threshold Level | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, threshold percentage (in percent) 80.00%      
Vesting percentage (in percent) 50.00%      
Performance Share Units (PSUs) | Vesting Based On ESG, Threshold Level | Executive Officers Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, threshold percentage (in percent)   80.00%    
Vesting percentage (in percent)   50.00%    
Performance Share Units (PSUs) | Vesting Based on TSR Compared To Performance Index, Stretch Level | Executive Office Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent)   150.00% 150.00%  
Performance Share Units (PSUs) | Vesting Based on TSR Compared To Performance Index, Stretch Level | Executive Office and CFO Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Vesting percentage (in percent) 150.00%      
Performance Share Units (PSUs) | Vesting Based On Performance Of ROCE, Threshold Level | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, target percentage (in percent) 6.00%      
Performance Share Units (PSUs) | Vesting Based On Performance Of ROCE, Threshold Level | Executive Officers Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, threshold percentage (in percent)   66.00% 66.00%  
Performance Share Units (PSUs) | Vesting Based on EPS Compared To Peer Group, Stretch Level | Executive Office Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award vesting performance, target percentage (in percent)     120.00%  
Vesting percentage (in percent)     150.00%  
RSUs | Vesting period one | Executive Officers other than CFO        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award performance period 3 years     3 years
RSUs | Vesting period one | Executive Officers Plan        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Award performance period   3 years   3 years