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Taxes (Details 5) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
IfrsStatementLineItems [Line Items]    
Current tax assets, current $ 900 $ 1,272
Current tax assets, non-current 1,374 1,110
Current tax liabilities, current 1,314 470
Value Added Tax [Member]    
IfrsStatementLineItems [Line Items]    
Current tax assets, current 232 261
Current tax assets, non-current 5 1
Current tax liabilities, current 25 46
Brazilian Federal Contributions [Member]    
IfrsStatementLineItems [Line Items]    
Current tax assets, current 355 690
Current tax assets, non-current 1,010 740
Current tax liabilities, current 615 35
Income Taxes [Member]    
IfrsStatementLineItems [Line Items]    
Current tax assets, current 302 309
Current tax assets, non-current 358 369
Current tax liabilities, current 429 221
Financial Compensation For Exploration Of Mineral Resources [Member]    
IfrsStatementLineItems [Line Items]    
Current tax liabilities, current 93 54
Others [Member]    
IfrsStatementLineItems [Line Items]    
Current tax assets, current 11 12
Current tax assets, non-current 1  
Current tax liabilities, current $ 152 $ 114