XML 139 R121.htm IDEA: XBRL DOCUMENT v3.22.1
Financial Instruments - Narrative (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Disclosure of detailed information about financial instruments [line items]    
Investments R$ 3,231,513 R$ 8,128,058
Financial assets 26,508,899 R$ 27,178,688
Foreign currency exchange    
Disclosure of detailed information about financial instruments [line items]    
Risk in equity securities 8,559  
Equity price    
Disclosure of detailed information about financial instruments [line items]    
Risk in equity securities 1,238,476  
Deposits from banking customers    
Disclosure of detailed information about financial instruments [line items]    
Financial assets R$ 324,315