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Legal and administrative proceedings (Details 2) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Tax Litigation [Member]    
IfrsStatementLineItems [Line Items]    
Contingent liabilities $ 5,995 $ 7,235
Civil Litigation [Member]    
IfrsStatementLineItems [Line Items]    
Contingent liabilities 1,274 1,366
Labor Litigation [Member]    
IfrsStatementLineItems [Line Items]    
Contingent liabilities 292 378
Environmental Litigation [Member]    
IfrsStatementLineItems [Line Items]    
Contingent liabilities 1,050 1,320
Legal proceedings provision [member]    
IfrsStatementLineItems [Line Items]    
Contingent liabilities $ 8,611 $ 10,299