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33. FINANCIAL INSTRUMENTS AND RISK MANAGEMENT (Details 12) R$ in Millions | Dec. 31, 2019 BRL (R$)
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Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | R$ 22,763
Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 20,683
Not Later Than One Month [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 1,839
Not Later Than One Month [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 53
Later Than One Month and Not Later Than Three Months [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 1,447
Later Than One Month and Not Later Than Three Months [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 1,154
Later Than Three Months And Not Later Than One Year [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 1,572
Later Than Three Months And Not Later Than One Year [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 1,571
Later Than One Year and Not Later Than Five Years [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 1,535
Later Than One Year and Not Later Than Five Years [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 15,350
Later Than Five Years [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 2,555
Later Than Five Years [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 2,555
Deficit Of The Pension Plan [member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 981
Deficit Of The Pension Plan [member] | Not Later Than One Month [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 5
Deficit Of The Pension Plan [member] | Later Than One Month and Not Later Than Three Months [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 11
Deficit Of The Pension Plan [member] | Later Than Three Months And Not Later Than One Year [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 123
Deficit Of The Pension Plan [member] | Later Than One Year and Not Later Than Five Years [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 212
Deficit Of The Pension Plan [member] | Later Than Five Years [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 630
Debt Agreed With Pension Plan [member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 704
Debt Agreed With Pension Plan [member] | Not Later Than One Month [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 12
Debt Agreed With Pension Plan [member] | Later Than One Month and Not Later Than Three Months [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 24
Debt Agreed With Pension Plan [member] | Later Than Three Months And Not Later Than One Year [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 111
Debt Agreed With Pension Plan [member] | Later Than One Year and Not Later Than Five Years [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 557
Debt Agreed With Pension Plan [member] | Later Than Five Years [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk |
Onerous Concessions [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 24
Onerous Concessions [Member] | Later Than Three Months And Not Later Than One Year [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 2
Onerous Concessions [Member] | Later Than One Year and Not Later Than Five Years [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 9
Onerous Concessions [Member] | Later Than Five Years [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 13
Suppliers [Member] | Fixed Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 2,080
Suppliers [Member] | Not Later Than One Month [Member] | Fixed Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 1,786
Suppliers [Member] | Later Than One Month and Not Later Than Three Months [Member] | Fixed Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 293
Suppliers [Member] | Later Than Three Months And Not Later Than One Year [Member] | Fixed Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 1
Loans, Financings and Debentures [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 18,974
Loans, Financings and Debentures [Member] | Not Later Than One Month [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 36
Loans, Financings and Debentures [Member] | Later Than One Month and Not Later Than Three Months [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 1,119
Loans, Financings and Debentures [Member] | Later Than Three Months And Not Later Than One Year [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 1,335
Loans, Financings and Debentures [Member] | Later Than One Year and Not Later Than Five Years [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | 14,572
Loans, Financings and Debentures [Member] | Later Than Five Years [Member] | Floating Interest Rate [Member] |
Disclosure of financial instruments by type of interest rate [line items] |
Financial assets held for managing liquidity risk | R$ 1,912

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