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Other Financial Assets and Liabilities - Summary of Financial Assets at Fair Value Through Other Comprehensive Income (Detail) ₩ in Millions	Dec. 31, 2018 KRW (₩)
Financial assets at fair value through other comprehensive income [line items]
Equity Instruments	₩ 326,157
Less: non-current	(326,157)
Current	0
Equity Instruments Listed [member]
Financial assets at fair value through other comprehensive income [line items]
Equity Instruments	8,861
Equity Instruments Unlisted [member]
Financial assets at fair value through other comprehensive income [line items]
Equity Instruments	310,387
Debt securities [member]
Financial assets at fair value through other comprehensive income [line items]
Equity Instruments	₩ 6,909

X

- Definition

The amount of current financial assets at fair value through other comprehensive income. [Refer: Financial assets at fair value through other comprehensive income]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2018-01-01
-Paragraph 8
-Subparagraph h
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-URIDate 2018-03-16

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- Definition

The amount of financial assets at fair value through other comprehensive income. [Refer: At fair value [member]; Financial assets; Other comprehensive income]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Number 7
-IssueDate 2018-01-01
-Paragraph 8
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- Definition

The amount of non-current financial assets at fair value through other comprehensive income. [Refer: Financial assets at fair value through other comprehensive income]

+ References

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- Definition

Financial assets at fair value through other comprehensive income [line items]

+ References

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