Goodwill - Details of the Changes in Goodwill (Detail) - KRW (₩) ₩ in Millions	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Disclosure of reconciliation of changes in goodwill [abstract]
Beginning balance	₩ 1,915,017	₩ 1,932,452
Acquisition	1,206,702	35,221
Disposal	(807)
Impairment loss	(166,838)	(33,441)
Other	(15,511)	(19,215)
Ending balance	₩ 2,938,563	₩ 1,915,017

The amount of additional goodwill recognised, except goodwill included in a disposal group that, on acquisition, meets the criteria to be classified as held for sale in accordance with IFRS 5. [Refer: Goodwill; Disposal groups classified as held for sale [member]]

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- References

No definition available.

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- Definition

The amount of assets representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognised. [Refer: Business combinations [member]]

+ References

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- Definition

The amount of impairment loss recognised in profit or loss for goodwill. [Refer: Impairment loss recognised in profit or loss; Goodwill]

+ References

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- Definition

The increase (decrease) in goodwill resulting from changes that the entity does not separately disclose in the same statement or note. [Refer: Goodwill]

+ References

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- Definition

Disposals Goodwill.

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No definition available.

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