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26. EQUITY AND REMUNERATION TO SHAREHOLDERS (Details 1) - shares | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
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Earnings per share [line items] |  |  |
Number of shares outstanding | 1,692,711,172 | 1,692,711,172 | 1,692,711,172
Common Shares [member] |  |  |
Earnings per share [line items] |  |  |
Common shares already paid up | 566,036,634 | 566,036,634 | 566,036,634
Shares in treasury | (79) | (79) | (79)
Number of shares outstanding | 566,036,555 | 566,036,555 | 566,036,555
Preferred Shares [member] |  |  |
Earnings per share [line items] |  |  |
Common shares already paid up | 1,127,325,434 | 1,127,325,434 | 1,127,325,434
Shares in treasury | (650,817) | (650,817) | (650,817)
Number of shares outstanding | 1,126,674,617 | 1,126,674,617 | 1,126,674,617

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- Definition Number of treasury shares. + References No definition available. + Details
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Balance Type: | na
Period Type: | instant

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The number of shares issued by the entity, for which full payment has been received. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 79 -Subparagraph a -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_79_a_ii&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The number of shares that have been authorised and issued, reduced by treasury shares held. [Refer: Treasury shares] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 79 -Subparagraph a -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_79_a_iv&doctype=Standard -URIDate 2020-01-01 + Details
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- Details
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- Details
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