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Financial Liabilities Held for Trading - Summary of Financial Liabilities Held for Trading (Detail) - BRL (R$)
R$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Disclosure of financial liabilities held for trading [Line Items]    
Current R$ 16 R$ 11
Non-Current 98 132
Total 114 143
Debt securities held for trading [member]    
Disclosure of financial liabilities held for trading [Line Items]    
Current 16 11
Non-Current 98 132
Total R$ 114 R$ 143