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Financial Income and Costs (Tables) | 12 Months Ended
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Dec. 31, 2021
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Summary of Details of Financial Income | Details of financial income for the years ended December 31, 2019, 2020 and 2021, are as follows:
(In millions of Korean won) |  | 2019 |  |  | 2020 |  |  | 2021 |
Interest income |  | ￦ | 282,704 |  |  | ￦ | 270,571 |  |  | ￦ | 273,460 |
Gain on foreign currency transactions |  |  | 24,596 |  |  |  | 17,493 |  |  |  | 19,976 |
Gain on foreign currency translation |  |  | 17,979 |  |  |  | 164,351 |  |  |  | 32,768 |
Gain on settlement of derivatives |  |  | 9,016 |  |  |  | 9,397 |  |  |  | 2,215 |
Gain on valuation of derivatives |  |  | 77,353 |  |  |  | 172 |  |  |  | 255,149 |
Gain on valuation of financial instruments |  |  | 6,460 |  |  |  | 33,868 |  |  |  | 90,653 |
Others |  |  | 6,287 |  |  |  | 2,762 |  |  |  | 52,062 |
Total |  | ￦ | 424,395 |  |  | ￦ | 498,614 |  |  | ￦ | 726,283 |
Summary of Details of Financial Costs | Details of financial costs for the years ended December 31, 2019, 2020 and 2021, are as follows:
(In millions of Korean won) |  | 2019 |  |  | 2020 |  |  | 2021 |
Interest expenses |  | ￦ | 278,427 |  |  | ￦ | 263,579 |  |  | ￦ | 263,389 |
Loss on foreign currency transactions |  |  | 30,267 |  |  |  | 27,805 |  |  |  | 13,105 |
Loss on foreign currency translation |  |  | 93,977 |  |  |  | 26,340 |  |  |  | 213,689 |
Loss on settlement of derivatives |  |  | 20 |  |  |  | 1,406 |  |  |  | 6,287 |
Loss on valuation of derivatives |  |  | 15,867 |  |  |  | 163,763 |  |  |  | 15,947 |
Loss on disposal of trade receivables |  |  | 11,298 |  |  |  | 8,152 |  |  |  | 22,712 |
Loss on valuation of financial instruments |  |  | 2,125 |  |  |  | 15,646 |  |  |  | 25,994 |
Others |  |  | 152 |  |  |  | 692 |  |  |  | 2,207 |
Total |  | ￦ | 432,133 |  |  | ￦ | 507,383 |  |  | ￦ | 563,330 |

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