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Other financial assets and liabilities (Details 1) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2024
Dec. 31, 2023
IfrsStatementLineItems [Line Items]    
Other Provision, beginning $ 3,869  
Monetary and present value adjustments 122  
Disbursements (171)  
Translation adjustment (490)  
Other Provision, ending 3,231  
Revision to estimates and new provisions (99)  
Current liabilities 680 $ 591
Non-current liabilities 2,551 3,278
Liabilities 3,231 $ 3,869
Payment Obligation [Member]    
IfrsStatementLineItems [Line Items]    
Other Provision, beginning 1,130  
Monetary and present value adjustments 53  
Disbursements (29)  
Translation adjustment (147)  
Other Provision, ending $ 1,007  
Discount rate in nominal terms 11.04% 11.04%
Remaining term of obligations 33 years  
Liabilities $ 1,007 $ 1,130
Infrastructure Investment [Member]    
IfrsStatementLineItems [Line Items]    
Other Provision, beginning 2,739  
Monetary and present value adjustments 69  
Disbursements (142)  
Translation adjustment (343)  
Other Provision, ending $ 2,224  
Remaining term of obligations 8 years  
Revision to estimates and new provisions $ (99)  
Liabilities $ 2,224 $ 2,739
Infrastructure Investment [Member] | Bottom of range [member]    
IfrsStatementLineItems [Line Items]    
Discount rate in nominal terms 6.48% 5.17%
Infrastructure Investment [Member] | Top of range [member]    
IfrsStatementLineItems [Line Items]    
Discount rate in nominal terms 6.51% 5.54%