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Legal proceedings (Details 1) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Tax Litigation [Member]    
IfrsStatementLineItems [Line Items]    
Contingent liabilities $ 7,235 $ 6,590
Civil Litigation [Member]    
IfrsStatementLineItems [Line Items]    
Contingent liabilities 1,366 1,270
Labor Litigation [Member]    
IfrsStatementLineItems [Line Items]    
Contingent liabilities 378 569
Environmental Litigation [Member]    
IfrsStatementLineItems [Line Items]    
Contingent liabilities 1,320 1,102
Legal proceedings provision [member]    
IfrsStatementLineItems [Line Items]    
Contingent liabilities $ 10,299 $ 9,531