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Inventories (Tables) | 12 Months Ended
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Dec. 31, 2020
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Summary of Inventories Net | Inventories as at December 31, 2019 and 2020, are as follows:
|  | December 31, 2019 |  |  | December 31, 2020 |
(In millions of Korean won) |  | Acquisition cost |  |  | Valuation allowance |  |  | Book amount |  |  | Acquisition cost |  |  | Valuation allowance |  |  | Book amount |
Merchandise |  | ￦ | 805,691 |  |  | ￦ | (144,438 | ) |  | ￦ | 661,253 |  |  | ￦ | 650,856 |  |  | ￦ | (133,224 | ) |  | ￦ | 517,632 |
Others |  |  | 130,424 |  |  |  | — |  |  |  | 130,424 |  |  |  | 17,004 |  |  |  | — |  |  |  | 17,004 |
Total |  | ￦ | 936,115 |  |  | ￦ | (144,438 | ) |  | ￦ | 791,677 |  |  | ￦ | 667,860 |  |  | ￦ | (133,224 | ) |  | ￦ | 534,636 |

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