v3.25.4
PERSONNEL EXPENSES AND DEFERRED EMPLOYEE BENEFITS - Net Periodic Pension Cost (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of net defined benefit liability (asset) [line items]      
Total $ 232 $ 166 $ 249
Pension defined benefit plans      
Disclosure of net defined benefit liability (asset) [line items]      
Current service cost 80 83 74
Past service cost - Plan amendments 29 (44) 9
Past service cost - Settlements (4) (4)  
Past service cost - Curtailments   (1) (6)
Net interest cost 71 77 82
Total 176 111 159
Pension defined benefit plans | Plan assets      
Disclosure of net defined benefit liability (asset) [line items]      
Past service cost - Settlements 123 3  
Net periodic OPEB cost      
Disclosure of net defined benefit liability (asset) [line items]      
Current service cost 28 28 27
Past service cost - Plan amendments (1) (8) 6
Past service cost - Curtailments 9 3  
Net interest cost 43 42 46
Gains (losses) arising from settlements, defined benefit plans 5 (4) 11
Total 56 55 90
Canada | Pension defined benefit plans      
Disclosure of net defined benefit liability (asset) [line items]      
Current service cost 17 16 14
Past service cost - Plan amendments 22 0 0
Past service cost - Settlements (3) 0  
Past service cost - Curtailments   0 0
Net interest cost 1 2 0
Total 37 18 14
Canada | Pension defined benefit plans | Plan assets      
Disclosure of net defined benefit liability (asset) [line items]      
Past service cost - Settlements 123 0  
Canada | Net periodic OPEB cost      
Disclosure of net defined benefit liability (asset) [line items]      
Current service cost 7 7 7
Past service cost - Plan amendments (1) 0 0
Past service cost - Curtailments 2 0  
Net interest cost 23 23 24
Gains (losses) arising from settlements, defined benefit plans 0 0 0
Total 27 30 31
Brazil | Pension defined benefit plans      
Disclosure of net defined benefit liability (asset) [line items]      
Current service cost 0 0 0
Past service cost - Plan amendments 0 0 0
Past service cost - Settlements 0 0  
Past service cost - Curtailments   0 0
Net interest cost 3 7 4
Total 3 7 4
Brazil | Pension defined benefit plans | Plan assets      
Disclosure of net defined benefit liability (asset) [line items]      
Past service cost - Settlements 0 0  
Europe | Pension defined benefit plans      
Disclosure of net defined benefit liability (asset) [line items]      
Current service cost 52 55 48
Past service cost - Plan amendments 7 (44) 3
Past service cost - Settlements (1) (4)  
Past service cost - Curtailments   (1) (6)
Net interest cost 38 42 44
Total 96 48 89
Europe | Pension defined benefit plans | Plan assets      
Disclosure of net defined benefit liability (asset) [line items]      
Past service cost - Settlements 0 0  
Europe | Net periodic OPEB cost      
Disclosure of net defined benefit liability (asset) [line items]      
Current service cost 17 18 17
Past service cost - Plan amendments 0 (3) (2)
Past service cost - Curtailments 7 3  
Net interest cost 12 12 14
Gains (losses) arising from settlements, defined benefit plans 5 (4) 11
Total 17 20 40
Others | Pension defined benefit plans      
Disclosure of net defined benefit liability (asset) [line items]      
Current service cost 11 12 12
Past service cost - Plan amendments 0 0 6
Past service cost - Settlements 0 0  
Past service cost - Curtailments   0 0
Net interest cost 29 26 34
Total 40 38 52
Others | Pension defined benefit plans | Plan assets      
Disclosure of net defined benefit liability (asset) [line items]      
Past service cost - Settlements 0 3  
Others | Net periodic OPEB cost      
Disclosure of net defined benefit liability (asset) [line items]      
Current service cost 4 3 3
Past service cost - Plan amendments 0 (5) 8
Past service cost - Curtailments 0 0  
Net interest cost 8 7 8
Gains (losses) arising from settlements, defined benefit plans 0 0 0
Total $ 12 $ 5 $ 19