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EQUITY (Details) - Schedule of movement of fully paid shares - shares
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Number Of Shares [Member]      
EQUITY (Details) - Schedule of movement of fully paid shares [Line Items]      
Paid shares as of beginning of period 606,407,693 606,407,693 606,407,693
There are no movements of shares paid
Paid shares as of end of period 606,407,693 606,407,693 606,407,693
Movement Value Of Shares [Member]      
EQUITY (Details) - Schedule of movement of fully paid shares [Line Items]      
Paid shares as of beginning of period [1] 3,160,718 3,160,718 3,160,718
There are no movements of shares paid [1]
Paid shares as of end of period [1] 3,160,718 3,160,718 3,160,718
Cost of Issuance And Placement of Shares [Member]      
EQUITY (Details) - Schedule of movement of fully paid shares [Line Items]      
Paid shares as of beginning of period [2] (14,453) (14,453) (14,453)
There are no movements of shares paid [2]
Paid shares as of end of period [2] (14,453) (14,453) (14,453)
Paid-in Capital [Member]      
EQUITY (Details) - Schedule of movement of fully paid shares [Line Items]      
Paid shares as of beginning of period 3,146,265 3,146,265 3,146,265
There are no movements of shares paid
Paid shares as of end of period 3,146,265 3,146,265 3,146,265
[1] Amounts reported represent only those arising from the payment of the shares subscribed.
[2] Decrease of capital by capitalization of reserves for cost of issuance and placement of shares established according to Extraordinary Shareholder´s Meetings, where such decreases were authorized.