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Cash and cash equivalents and Marketable securities (Tables)
12 Months Ended
Dec. 31, 2022
Cash And Cash Equivalents And Marketable Securities  
Cash and cash equivalents
   
  12.31.2022 12.31.2021
Cash at bank and in hand 216 299
Short-term financial investments    
- In Brazil    
Brazilian interbank deposit rate investment funds and other short-term deposits 2,763 1,951
Other investment funds 244 163
  3,007 2,114
- Abroad    
Time deposits 2,388 4,310
Automatic investing accounts and interest checking accounts 2,365 3,732
Other financial investments 20 12
  4,773 8,054
Total short-term financial investments 7,780 10,168
Total cash and cash equivalents 7,996 10,467
Marketable securities
           
      12.31.2022     12.31.2021
  In Brazil Abroad Total In Brazil Abroad Total
Fair value through profit or loss 713 713 650 650
Amortized cost - Bank Deposit Certificates and time deposits 2,548 1,026 3,574
Amortized cost - Others 50 50 44 44
Total 3,311 1,026 4,337 694 694
Current 1,747 1,026 2,773 650 650
Non-current 1,564 1,564 44 44