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Equity (Details 3) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Disclosure Equity Abstract      
Net income of the year $ 7,983 $ 18,788 $ 22,445
Appropriation to legal reserve (i) (276)  
Appropriation to tax incentive reserve (891) (1,157)  
Net income after appropriations to legal reserve and tax incentive reserve 7,092 17,355  
Minimum remuneration to shareholders (ii) 2,042 4,386  
Additional shareholders' remuneration      
from the net income for the year 4,066 437  
Total remuneration to shareholders 6,108 4,823  
Appropriation to statutory reserve 984 8,821  
Appropriation to retained earnings reserve $ 3,711