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Lease - Additional Information (Detail) - KRW (₩) ₩ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about arrangements involving legal form of lease [abstract]
Depreciation property plant and equipment	₩ 63,070	₩ 58,535
Operating lease expenses incurred	₩ 132,225	₩ 126,250

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- References

No definition available.

+ Details

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- Definition

The portion of operating lease payments that the lessee is or can be required to make, excluding contingent rent, costs for services and taxes to be paid by, and reimbursed to, the lessor, together with any amounts guaranteed by the lessee or by a party related to the lessee recognised as an expense.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2019-01-01
-Name IAS
-Number 17
-IssueDate 2018-01-01
-Paragraph 35
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=17&date=2018-03-02&anchor=para_35_c&doctype=Standard&book=b
-URIDate 2018-03-16

+ Details

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- Definition

Depreciation recognised finance lease as other property plant and equipment.

+ References

No definition available.

+ Details

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