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Retained Earnings and Dividends Paid - Summary of Dividends Paid (Details) - KRW (₩) ₩ / shares in Units, ₩ in Millions	12 Months Ended
	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

X

- Definition

The amount of dividends paid by the entity on ordinary shares. [Refer: Ordinary shares [member]]

+ References

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The amount of dividends paid per ordinary share.

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- Definition

The increase (decrease) in the number of shares outstanding. [Refer: Number of shares outstanding]

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The number of shares issued by the entity, for which full payment has been received.

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The number of shares that have been authorised and issued, reduced by treasury shares held. [Refer: Treasury shares]

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Dividends.

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