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Cash and cash equivalents and Marketable securities (Details) - USD ($)
$ in Millions
Jun. 30, 2023
Dec. 31, 2022
Jun. 30, 2022
IfrsStatementLineItems [Line Items]      
Cash $ 112 $ 216  
Total short-term financial investments 10,239 7,780  
Total cash and cash equivalents 10,351 7,996 $ 16,287
Country B R [Member]      
IfrsStatementLineItems [Line Items]      
Short-term financial investments 970 3,007  
Foreign countries [member]      
IfrsStatementLineItems [Line Items]      
Short-term financial investments 9,269 4,773  
Automatic Investing Accounts And Interest Checking Accounts [Member] | Country B R [Member]      
IfrsStatementLineItems [Line Items]      
Short-term financial investments 778 2,763  
Automatic Investing Accounts And Interest Checking Accounts [Member] | Foreign countries [member]      
IfrsStatementLineItems [Line Items]      
Short-term financial investments 3,794 2,365  
Other Investment Funds [Member] | Country B R [Member]      
IfrsStatementLineItems [Line Items]      
Short-term financial investments 192 244  
Time Deposits [Member] | Foreign countries [member]      
IfrsStatementLineItems [Line Items]      
Short-term financial investments 5,471 2,388  
Other Financial Investments [Member] | Foreign countries [member]      
IfrsStatementLineItems [Line Items]      
Short-term financial investments $ 4 $ 20