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Changes in Accounting Policies - Determination of Lease Term Considering Economic Penalty - Additional Information (Detail) ₩ in Millions | Jan. 01, 2019 KRW (₩)
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Increase (decrease) due to changes in accounting policy [member] |
Disclosure of reclassifications or changes in presentation [line items] |
Increase (decrease) through changes in accounting policy, right of use assets | ₩ 128,035
Increase (decrease) through changes in accounting policy, lease liabilities | 128,035
IFRS 16 [Member] |
Disclosure of reclassifications or changes in presentation [line items] |
Increase (decrease) through changes in accounting policy, right of use assets | 899,783
Increase (decrease) through changes in accounting policy, lease liabilities | ₩ 643,375

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