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Non-financial Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2021
Other Liabilities Disclosure [Abstract] |
Non-financial Liabilities | Non-financial liabilities as of December 31, 2020 and 2021 are as follows:
|  |  |  |  | 2020 |  |  | 2021 |
|  |  |  |  | Current |  |  | Non-current |  |  | Current |  |  | Non-current |
|  |  |  |  | In millions of won |
Advance received |  | ￦ |  |  |  |  | 3,693,043 |  |  |  | 331,596 |  |  |  | 4,157,916 |  |  |  | 398,056 |
Unearned revenue |  |  |  |  |  |  | 35,068 |  |  |  | 6,122 |  |  |  | 40,187 |  |  |  | 6,517 |
Deferred revenue |  |  |  |  |  |  | 625,596 |  |  |  | 9,242,593 |  |  |  | 659,397 |  |  |  | 9,697,158 |
Withholdings |  |  |  |  |  |  | 257,059 |  |  |  | 9,909 |  |  |  | 345,892 |  |  |  | 5,171 |
Others |  |  |  |  |  |  | 1,360,684 |  |  |  | 71,721 |  |  |  | 1,262,941 |  |  |  | 109,462 |
|  | ￦ |  |  |  |  | 5,971,450 |  |  |  | 9,661,941 |  |  |  | 6,466,333 |  |  |  | 10,216,364 |

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