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24. LOANS, FINANCING AND DEBENTURES (Detaills 2) - BRL (R$)
R$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Disclosure of detailed information about borrowings [line items]    
Borrowings R$ 14,777 R$ 14,772
Promissory Notes and Sureties [Member]    
Disclosure of detailed information about borrowings [line items]    
Borrowings 9,247  
Guarantee and Receivables [Member]    
Disclosure of detailed information about borrowings [line items]    
Borrowings 3,652  
Receivables [Member]    
Disclosure of detailed information about borrowings [line items]    
Borrowings 310  
Shares [Member]    
Disclosure of detailed information about borrowings [line items]    
Borrowings 609  
Unsecured [Member]    
Disclosure of detailed information about borrowings [line items]    
Borrowings R$ 959