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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

X

- 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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X

- 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

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- Details

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- Details

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