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Impairment (Details 1) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
IfrsStatementLineItems [Line Items]      
  Impairment (losses) reversals, net $ (2,680) $ (1,315) $ 3,190
Net effect within the statement of income (3,046) (1,321) (3,573)
Impairment losses 3,046 1,321 3,573
Property, plant and equipment [member]      
IfrsStatementLineItems [Line Items]      
  Impairment (losses) reversals, net (2,783) (1,163) 3,414
Intangible assets other than goodwill [member]      
IfrsStatementLineItems [Line Items]      
  Impairment (losses) reversals, net (364) (1) 1
Non-current assets or disposal groups classified as held for sale [member]      
IfrsStatementLineItems [Line Items]      
  Impairment (losses) reversals, net 103 (151) (225)
Investiments [Member]      
IfrsStatementLineItems [Line Items]      
  Impairment (losses) reversals, net $ (2) $ (6) $ 383