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Retained Earnings and Dividends Paid - Summary of Dividends Paid (Details) - KRW (₩) ₩ / shares in Units, ₩ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Dividends [Abstract] |  |  |
Number of shares issued | 641,964,077 | 641,964,077 | 641,964,077
Number of treasury stocks | 0 | 0 | 0
Number of shares eligible for dividends | 641,964,077 | 641,964,077 | 641,964,077
Dividends paid per share (In won) | ₩ 1,216 | ₩ 0 | ₩ 0
Dividends paid, ordinary shares | ₩ 780,628 | ₩ 0 | ₩ 0

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- Definition The amount of dividends paid by the entity on ordinary shares. [Refer: Ordinary shares [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 34 -IssueDate 2021-01-01 -Paragraph 16A -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=34&code=ifrs-tx-2021-en-r&anchor=para_16A_f&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of dividends paid per ordinary share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 34 -IssueDate 2021-01-01 -Paragraph 16A -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=34&code=ifrs-tx-2021-en-r&anchor=para_16A_f&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The increase (decrease) in the number of shares outstanding. [Refer: Number of shares outstanding] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 79 -Subparagraph a -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_79_a_iv&doctype=Standard -URIDate 2021-03-24 + 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 2021-01-01 -Paragraph 79 -Subparagraph a -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_79_a_ii&doctype=Standard -URIDate 2021-03-24 + 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 2021-01-01 -Paragraph 79 -Subparagraph a -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_79_a_iv&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition Dividends. + References No definition available. + Details
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