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21. EQUITY (Details) - shares | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
EquityAbstractLineItems [Line Items] |  |  |
Outstanding shares | 807,707,162 | 811,759,800 | 811,416,022
Ordinary shares [member] |  |  |
EquityAbstractLineItems [Line Items] |  |  |
Outstanding shares | 812,473,246 | 812,473,246 | 812,473,246
Treasury shares [member] |  |  |
EquityAbstractLineItems [Line Items] |  |  |
Outstanding shares | (4,766,084) | (713,446) | (1,057,224)

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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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