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Derivative Instrument - Summary of Derivatives (Parenthetical) (Details) - KRW (₩) ₩ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivatives [Abstract]
Net gain on valuation of derivatives designated as cash flow hedge	₩ 15,778	₩ (64,561)	₩ (19,242)

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- Definition

The amount of other comprehensive income, net of tax, after reclassification adjustments, related to cash flow hedges. [Refer: Cash flow hedges [member]; Other comprehensive income]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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-URIDate 2021-03-24

+ Details

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X

- Definition

Derivative instrument detail.

+ References

No definition available.

+ Details

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