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Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Details) - KRW (₩) ₩ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash and cash equivalents [abstract]
Total cash	₩ 19,623	₩ 871
Demand Deposit Accounts	1,825,751	1,291,058
Short-term deposits, classified as cash equivalents	407,921	432,263
Short-term investments, classified as cash equivalents	381,943	305,392
Total cash and cash equivalents	₩ 2,635,238	₩ 2,029,584	₩ 1,810,129	₩ 1,358,345

X

- Definition

The amount of cash on hand and demand deposits. [Refer: Cash on hand]

+ References

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- Definition

The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]

+ References

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A classification of cash equivalents representing short-term deposits. [Refer: Cash equivalents]

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Demand deposit accounts.

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