v3.25.4
PERSONNEL EXPENSES AND DEFERRED EMPLOYEE BENEFITS - Weighted Average Asset Allocation for the Funded Defined Benefit Pension Plans (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure of fair value of plan assets [line items]    
Return on plan assets excluding interest income or expense, net defined benefit liability (asset) $ 166 $ 235
Canada    
Disclosure of fair value of plan assets [line items]    
Equity Securities (in percent) 19.00% 22.00%
Fixed Income Securities (including cash) (in percent) 26.00% 25.00%
Real Estate (in percent) 9.00% 9.00%
Other (in percent) 46.00% 44.00%
Total (in percent) 100.00% 100.00%
Brazil    
Disclosure of fair value of plan assets [line items]    
Equity Securities (in percent) 3.00% 3.00%
Fixed Income Securities (including cash) (in percent) 68.00% 63.00%
Real Estate (in percent) 1.00% 2.00%
Other (in percent) 28.00% 32.00%
Total (in percent) 100.00% 100.00%
Europe    
Disclosure of fair value of plan assets [line items]    
Equity Securities (in percent) 18.00% 18.00%
Fixed Income Securities (including cash) (in percent) 58.00% 59.00%
Real Estate (in percent) 2.00% 0.00%
Other (in percent) 22.00% 23.00%
Total (in percent) 100.00% 100.00%
- Asset classes that have a quoted market price in an active market | Canada    
Disclosure of fair value of plan assets [line items]    
Equity Securities (in percent) 11.00% 15.00%
Fixed Income Securities (including cash) (in percent) 16.00% 16.00%
Real Estate (in percent) 0.00% 0.00%
Other (in percent) 0.00% 0.00%
- Asset classes that have a quoted market price in an active market | Brazil    
Disclosure of fair value of plan assets [line items]    
Equity Securities (in percent) 0.00% 0.00%
Fixed Income Securities (including cash) (in percent) 68.00% 63.00%
Real Estate (in percent) 0.00% 0.00%
Other (in percent) 28.00% 32.00%
- Asset classes that have a quoted market price in an active market | Europe    
Disclosure of fair value of plan assets [line items]    
Equity Securities (in percent) 18.00% 18.00%
Fixed Income Securities (including cash) (in percent) 58.00% 59.00%
Real Estate (in percent) 2.00% 0.00%
Other (in percent) 5.00% 6.00%
- Asset classes that do not have a quoted market price in an active market | Canada    
Disclosure of fair value of plan assets [line items]    
Equity Securities (in percent) 8.00% 7.00%
Fixed Income Securities (including cash) (in percent) 10.00% 9.00%
Real Estate (in percent) 9.00% 9.00%
Other (in percent) 46.00% 44.00%
- Asset classes that do not have a quoted market price in an active market | Brazil    
Disclosure of fair value of plan assets [line items]    
Equity Securities (in percent) 3.00% 3.00%
Fixed Income Securities (including cash) (in percent) 0.00% 0.00%
Real Estate (in percent) 1.00% 2.00%
Other (in percent) 0.00% 0.00%
- Asset classes that do not have a quoted market price in an active market | Europe    
Disclosure of fair value of plan assets [line items]    
Equity Securities (in percent) 0.00% 0.00%
Fixed Income Securities (including cash) (in percent) 0.00% 0.00%
Real Estate (in percent) 0.00% 0.00%
Other (in percent) 17.00% 17.00%