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Cash and Cash Equivalents to Restricted Cash - Summary of Restricted Cash and Cash Equivalents (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Cash and cash equivalents [abstract] |  |
Deposit restricted for governmental project and others | ₩ 28,414 | ₩ 21,290

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- Definition The amount of cash and cash equivalents whose use or withdrawal is restricted. [Refer: Cash and cash equivalents] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_55&doctype=Standard -URIDate 2020-01-01 + Details
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