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Bonds and Securities (Tables)
 12 Months Ended
Dec. 31, 2022
Bonds And Securities  
Schedule of bonds and securities
     
Category Index 12.31.2022 12.31.2021
Units in Funds (a)  CDI  353,454 284,852
Bank Deposit Certificates - CDB  96% to 101% of CDI   77,602  61,635
National Treasury Bills- LTN  10.92% p.a.  -   14,571
    431,056 361,058
  Current 93  16,121
  Noncurrent 430,963 344,937
Interbank Deposit Certificate - CDI
(a)These are fixed income funds in the Parent Company and reserve accounts intended to comply with contracts with BNDES.