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Fair value measurement of liabilities (Details) - At fair value - KRW (₩) ₩ in Millions | Dec. 31, 2018 | Dec. 31, 2017
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Disclosure of fair value measurement of liabilities [Line Items] |  |
Derivative liabilities | ₩ 312,163 | ₩ 428,059
Level 2 |  |
Disclosure of fair value measurement of liabilities [Line Items] |  |
Derivative liabilities | 310,008 | 428,059
Level 3 |  |
Disclosure of fair value measurement of liabilities [Line Items] |  |
Derivative liabilities | ₩ 2,155 | ₩ 0

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- Definition The amount of financial liabilities classified as derivative instruments. [Refer: Financial assets; Derivatives [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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- Details
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