v3.25.4
PERSONNEL EXPENSES AND DEFERRED EMPLOYEE BENEFITS - Summary of Share Unit Plans Outstanding (Details)
$ / shares in Units, $ in Millions
12 Months Ended 102 Months Ended
Dec. 05, 2025
shares
beneficiary
$ / shares
Dec. 05, 2024
shares
beneficiary
$ / shares
Dec. 08, 2023
shares
beneficiary
$ / shares
Dec. 13, 2022
shares
beneficiary
$ / shares
Dec. 31, 2025
USD ($)
shares
$ / shares
Dec. 31, 2024
USD ($)
shares
$ / shares
Dec. 31, 2023
USD ($)
shares
$ / shares
Dec. 31, 2024
shares
$ / shares
Dec. 31, 2022
shares
Disclosure of terms and conditions of share-based payment arrangement [line items]                  
Number of shares granted (in shares)               8,978,870  
Number of shares outstanding (in shares)         8,453,270        
Number of shares forfeited (in shares)         505,681        
Number of shares exited (in shares)         19,919        
Bottom of range                  
Disclosure of terms and conditions of share-based payment arrangement [line items]                  
Fair value price per granted share (USD per share) | $ / shares               $ 21.86  
Top of range                  
Disclosure of terms and conditions of share-based payment arrangement [line items]                  
Fair value price per granted share (USD per share) | $ / shares               $ 42.62  
RSUs                  
Disclosure of terms and conditions of share-based payment arrangement [line items]                  
Number of shares granted (in shares)         1,032,150 1,636,575 1,269,300    
Fair value price per granted share (USD per share) | $ / shares         $ 42.62 $ 25.33 $ 25.58    
Number of shares outstanding (in shares)         3,700,175 3,628,375 2,757,800 3,628,375 2,837,150
Number of shares forfeited (in shares)         213,056 130,724 116,576    
Number of shares exited (in shares)         747,294 635,276 1,232,074    
PSU / Executive Office                  
Disclosure of terms and conditions of share-based payment arrangement [line items]                  
Number of shares granted (in shares)         1,223,097 1,906,781 1,127,673    
Fair value price per granted share (USD per share) | $ / shares         $ 41.30 $ 23.70 $ 21.86    
Number of shares outstanding (in shares)         4,753,095 4,292,511 3,294,302 4,292,511 3,693,496
Number of shares forfeited (in shares)         298,356 342,841 92,616    
Number of shares exited (in shares)         464,157 565,731 1,434,251    
PSU and RSU                  
Disclosure of terms and conditions of share-based payment arrangement [line items]                  
Compensation expense | $         $ 56 $ 37 $ 39    
Grant date December 5, 2025, Maturity due December 2028 | RSUs                  
Disclosure of terms and conditions of share-based payment arrangement [line items]                  
Number of shares granted (in shares) 1,032,150                
Number of beneficiaries | beneficiary 1,103                
Fair value price per granted share (USD per share) | $ / shares $ 42.62                
Number of shares outstanding (in shares)         1,032,150        
Number of shares forfeited (in shares)         0        
Number of shares exited (in shares)         0        
Grant date December 5, 2025, Maturity due January 2029 | PSU / Executive Office                  
Disclosure of terms and conditions of share-based payment arrangement [line items]                  
Number of shares granted (in shares) 1,220,027                
Number of beneficiaries | beneficiary 856                
Fair value price per granted share (USD per share) | $ / shares $ 41.33                
Number of shares outstanding (in shares)         1,220,027        
Number of shares forfeited (in shares)         0        
Number of shares exited (in shares)         0        
Grant date December 5, 2024, Maturity due December 2027 | RSUs                  
Disclosure of terms and conditions of share-based payment arrangement [line items]                  
Number of shares granted (in shares)   1,636,575              
Number of beneficiaries | beneficiary   1,092              
Fair value price per granted share (USD per share) | $ / shares   $ 25.33              
Number of shares outstanding (in shares)         1,548,975        
Number of shares forfeited (in shares)         84,176        
Number of shares exited (in shares)         3,424        
Grant date December 5, 2024, Maturity due January 2028 | PSU / Executive Office                  
Disclosure of terms and conditions of share-based payment arrangement [line items]                  
Number of shares granted (in shares)   1,906,781              
Number of beneficiaries | beneficiary   849              
Fair value price per granted share (USD per share) | $ / shares   $ 23.70              
Number of shares outstanding (in shares)         1,851,381        
Number of shares forfeited (in shares)         55,400        
Number of shares exited (in shares)         0        
Grant date December 8, 2023, maturity due December 2026 | RSUs                  
Disclosure of terms and conditions of share-based payment arrangement [line items]                  
Number of shares granted (in shares)     1,269,300            
Number of beneficiaries | beneficiary     958            
Fair value price per granted share (USD per share) | $ / shares     $ 25.58            
Number of shares outstanding (in shares)         1,119,050        
Number of shares forfeited (in shares)         133,755        
Number of shares exited (in shares)         16,495        
Grant date December 8, 2023, maturity due January 2027 | PSU / Executive Office                  
Disclosure of terms and conditions of share-based payment arrangement [line items]                  
Number of shares granted (in shares)     1,127,673            
Number of beneficiaries | beneficiary     258            
Fair value price per granted share (USD per share) | $ / shares     $ 21.86            
Number of shares outstanding (in shares)         1,003,473        
Number of shares forfeited (in shares)         124,200        
Number of shares exited (in shares)         0        
Grant date December 13, 2022, maturity due January 2026 | PSU / Executive Office                  
Disclosure of terms and conditions of share-based payment arrangement [line items]                  
Number of shares granted (in shares)       786,364          
Number of beneficiaries | beneficiary       244          
Fair value price per granted share (USD per share) | $ / shares       $ 23.43          
Number of shares outstanding (in shares)         678,214        
Number of shares forfeited (in shares)         108,150        
Number of shares exited (in shares)         0