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Non-financial Liabilities (Details) - KRW (₩) ₩ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Other Current Liabilities |  |
Disclosure - Other liabilities [Line Items] |  |
Advances received | ₩ 3,825,240 | ₩ 3,724,238
Unearned revenue | 30,988 | 63,038
Deferred revenue | 590,928 | 556,072
Withholdings | 160,977 | 172,454
Other nonfincial liabilities | 1,080,220 | 1,058,239
Total | 5,688,353 | 5,574,041
Other Noncurrent Liabilities |  |
Disclosure - Other liabilities [Line Items] |  |
Advances received | 192,863 | 80,937
Unearned revenue | 6,589 | 4,690
Deferred revenue | 8,610,610 | 8,050,491
Withholdings | 10,901 | 10,856
Other nonfincial liabilities | 13,489 | 13,059
Total | ₩ 8,834,452 | ₩ 8,160,033

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