v3.26.1
Taxes (Details 4) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
IfrsStatementLineItems [Line Items]    
Current tax assets $ 1,717 $ 1,505
Non-current assets 1,743 1,776
Current tax liabilities 890 687
Non-current liabilities
REFIS current liabilities 464 423
REFIS noncurrent liabilities 627 784
Value Added Tax [Member]    
IfrsStatementLineItems [Line Items]    
Current tax assets 356 311
Non-current assets 12 19
Current tax liabilities 52 52
Non-current liabilities
Brazilian Federal Contributions [Member]    
IfrsStatementLineItems [Line Items]    
Current tax assets 239 208
Non-current assets 1,458 1,293
Current tax liabilities 5 2
Income Taxes [Member]    
IfrsStatementLineItems [Line Items]    
Current tax assets 1,108 973
Non-current assets 272 462
Current tax liabilities 565 351
Financial Compensation For Exploration Of Mineral Resources [Member]    
IfrsStatementLineItems [Line Items]    
Current tax liabilities 70 77
Others [Member]    
IfrsStatementLineItems [Line Items]    
Current tax assets 14 13
Non-current assets 1 2
Current tax liabilities 198 205
REFIS Liabilities [Member]    
IfrsStatementLineItems [Line Items]    
REFIS current liabilities 464 423
REFIS noncurrent liabilities $ 627 $ 784