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Schedule of cash and cash equivalents (Details) - BRL (R$)
R$ in Millions

Dec. 31, 2021

Dec. 31, 2020

Bank accounts

R$ 117

R$ 93

Cash equivalents

Bank deposit certificates (CDBs)

^[1]

625

1,416

      Overnight

^[2]

81

171

      Others

2

 Short term investments

708

1,587

 Cash and cash equivalents

R$ 825

R$ 1,680

[1]	Bank Deposit Certificates
[2]	Overnight

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The amount of cash balances held at banks.

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