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Equity - Treasury Stock - Class A Treasury Stock (Details) - Class A, Ordinary shares - shares | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Equity |  |  |
Number of shares outstanding | 426,129,798 | 426,129,798 | 426,129,798
Treasury stock |  |  |
Equity |  |  |
Number of shares outstanding | 0 | 0 |

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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 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 2019-01-01 -Paragraph 79 -Subparagraph a -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_79_a_iv&doctype=Standard -URIDate 2019-03-27 + Details
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- Details
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- Details
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