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Non-financial Liabilities (Details) - KRW (₩) ₩ in Millions | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Disclosure - Other liabilities [Line Items] |  |  |
Deferred revenue | ₩ 10,356,555 | ₩ 9,868,189 | ₩ 9,201,538
Current |  |  |
Disclosure - Other liabilities [Line Items] |  |  |
Advances received, representing contract liabilities for performance obligations satisfied at point in time | 4,157,916 | 3,693,043 |
Unearned revenue | 40,187 | 35,068 |
Deferred revenue | 659,397 | 625,596 |
Withholdings | 345,892 | 257,059 |
Others | 1,262,941 | 1,360,684 |
Total | 6,466,333 | 5,971,450 |
Non-current |  |  |
Disclosure - Other liabilities [Line Items] |  |  |
Advances received, representing contract liabilities for performance obligations satisfied at point in time | 398,056 | 331,596 |
Unearned revenue | 6,517 | 6,122 |
Deferred revenue | 9,697,158 | 9,242,593 |
Withholdings | 5,171 | 9,909 |
Others | 109,462 | 71,721 |
Total | ₩ 10,216,364 | ₩ 9,661,941 |

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- Definition The amount of an entity’s obligation to transfer goods or services to a customer for which the entity has received consideration (or the amount is due) from the customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2021-01-01 -Paragraph 105 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_105&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2021-01-01 -Paragraph 116 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_116_a&doctype=Standard -URIDate 2021-03-24 + Details
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