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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, 2019 | Dec. 31, 2018
Miscellaneous equity [abstract] |  |
Treasury stock | ₩ (825,838) | ₩ (830,874)
Gain or loss on disposal of treasury stock | 1,229 | (12,251)
Share-based payments | 7,769 | 5,956
Others | (353,243) | (343,914)
Total | ₩ (1,170,083) | ₩ (1,181,083)

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