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Legal proceedings (Details 1) - USD ($)
$ in Millions
Jun. 30, 2024
Dec. 31, 2023
IfrsStatementLineItems [Line Items]    
Contingent liabilities $ 9,249 $ 10,299
Tax Litigation [Member]    
IfrsStatementLineItems [Line Items]    
Contingent liabilities 6,347 7,235
Civil Litigation [Member]    
IfrsStatementLineItems [Line Items]    
Contingent liabilities 1,343 1,366
Labor Litigation [Member]    
IfrsStatementLineItems [Line Items]    
Contingent liabilities 294 378
Environmental Litigation [Member]    
IfrsStatementLineItems [Line Items]    
Contingent liabilities $ 1,265 $ 1,320