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Accumulated Other Comprehensive Income and Other Components of Equity - Summary of Other Components of Equity (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Jan. 01, 2017
Miscellaneous equity [abstract] |  |  |
Treasury stock | ₩ (830,874) | ₩ (853,108) |
Gain or loss on disposal of treasury stock | (12,251) | 873 |
Share-based payments | 5,956 | 6,483 |
Others | (343,914) | (359,550) |
Total | ₩ (1,181,083) | ₩ (1,205,302) | ₩ (1,217,934)

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