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Financial risk management (Details 1) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
IfrsStatementLineItems [Line Items]      
Total $ (8,340) $ 5,487 $ 6,662
Cash flow hedges [member]      
IfrsStatementLineItems [Line Items]      
Total (12,635) 8,317 10,094
Deferred Income Taxes [Member]      
IfrsStatementLineItems [Line Items]      
Total $ 4,295 $ (2,830) $ (3,432)