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Risks and Financial Instruments - Summary of loss allowance for expected credit losses balances by geographic area (Detail) - BRL (R$)
R$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Disclosure of detailed information about financial instruments [line items]    
Loss allowance for expected credit losses R$ 559,633 R$ 579,107
Brasil [member]    
Disclosure of detailed information about financial instruments [line items]    
Loss allowance for expected credit losses 559,532 568,461
United States of America and Canada [member]    
Disclosure of detailed information about financial instruments [line items]    
Loss allowance for expected credit losses 3 1,146
Other Latin American countries [member]    
Disclosure of detailed information about financial instruments [line items]    
Loss allowance for expected credit losses 15 271
Europe [member]    
Disclosure of detailed information about financial instruments [line items]    
Loss allowance for expected credit losses 66 9,120
Others [member]    
Disclosure of detailed information about financial instruments [line items]    
Loss allowance for expected credit losses R$ 17 R$ 109