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Equity (Details 4) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
IfrsStatementLineItems [Line Items]      
Profit (loss), attributable to owners of parent $ 36,623 $ 19,875 $ 1,141
Weighted average number of outstanding shares 13,044,201,261 13,044,201,261 13,044,201,261
Basic and diluted earnings per share $ 2.81 $ 1.52 $ 0.09
Basic and diluted earnings per share $ 5.62 $ 3.04 $ 0.18
Ordinary shares [member]      
IfrsStatementLineItems [Line Items]      
Profit (loss), attributable to owners of parent $ 20,895 $ 11,339 $ 651
Weighted average number of outstanding shares 7,442,231,382 7,442,231,382 7,442,231,382
Basic and diluted earnings per share $ 2.81 $ 1.52 $ 0.09
Basic and diluted earnings per share $ 5.62 $ 3.04 $ 0.18
Preference shares [member]      
IfrsStatementLineItems [Line Items]      
Profit (loss), attributable to owners of parent $ 15,728 $ 8,536 $ 490
Weighted average number of outstanding shares 5,601,969,879 5,601,969,879 5,601,969,879
Basic and diluted earnings per share $ 2.81 $ 1.52 $ 0.09
Basic and diluted earnings per share $ 5.62 $ 3.04 $ 0.18