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Financial Risk Management (Tables) | 12 Months Ended
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Dec. 31, 2023
Statement [LineItems] |
Summary of Maximum Exposure to Credit Risk | The maximum exposure to credit risk of the Group’s financial instruments without considering value of collaterals as o f December 31, 2022 and 2023, are as follows:
(in millions of Korean won) |  | December 31, 2022 |  |  | December 31, 2023 |
Cash and cash equivalents (except for cash on hand) |  | ￦ | 2,437,629 |  |  | ￦ | 2,869,285 |
Trade and other receivables |  |  |  |  |  |  |  |
Financial assets at amortized costs |  |  | 7,459,994 |  |  |  | 8,458,259 |
Financial assets at fair value through other comprehensive income |  |  | 129,124 |  |  |  | 116,198 |
Contract assets |  |  | 802,253 |  |  |  | 832,520 |
Other financial assets |  |  |  |  |  |  |  |
Derivatives financial assets for hedging |  |  | 190,830 |  |  |  | 159,211 |
Financial assets at fair value through profit or loss |  |  | 942,274 |  |  |  | 880,549 |
Financial assets at fair value through other comprehensive income |  |  | 5,432 |  |  |  | 5,913 |
Financial assets at amortized costs |  |  | 1,060,058 |  |  |  | 1,385,921 |
Total |  | ￦ | 13,027,594 |  |  | ￦ | 14,707,856 |
Summary of Expected Credit Losses Reflect Forward-Looking Information | The expected credit losses reflect forward-looking information. Provision for impairment as of December 31, 2022 and 2023, are as follows:
|  | December 31, 2022 |
(in millions of Korean won) |  | Less than 6 months |  |  | 7-12 months |  |  | More than 1 years |  |  | Total |
Expected credit loss rate |  |  | 5.57 | % |  |  | 25.84 | % |  |  | 67.16 | % |  |  | — |
Total carrying amounts |  | ￦ | 3,443,163 |  |  | ￦ | 49,491 |  |  | ￦ | 207,396 |  |  | ￦ | 3,700,050 |
Provision for impairment |  | ￦ | (191,668 | ) |  | ￦ | (12,789 | ) |  | ￦ | (139,281 | ) |  | ￦ | (343,738 | )
|  | December 31, 2023 |
(in millions of Korean won) |  | Less than 6 months |  |  | 7-12 months |  |  | More than 1 years |  |  | Total |
Expected credit loss rate |  |  | 5.43 | % |  |  | 21.72 | % |  |  | 54.55 | % |  |  | — |
Total carrying amounts |  | ￦ | 3,466,588 |  |  | ￦ | 68,772 |  |  | ￦ | 235,129 |  |  | ￦ | 3,770,489 |
Provision for impairment |  | ￦ | (188,086 | ) |  | ￦ | (14,940 | ) |  | ￦ | (128,264 | ) |  | ￦ | (331,290 | )
Summary of Details of Changes in Provisions for Impairment of Trade Receivables and Other Financial Assets at Amortized Costs |
| 1) | Details of financial assets at fair value through profit or loss as of December 31, 2022 and 2023, are as follows:
(in millions of Korean won) |  | December 31, 2022 |  |  | December 31, 2023 |
Equity Instruments (Listed) |  | ￦ | 26,647 |  |  | ￦ | 13,911 |
Equity Instruments (Unlisted) |  |  | 72,517 |  |  |  | 42,185 |
Debt securities |  |  | 942,274 |  |  |  | 880,549 |
Derivatives held for trading 1 |  |  | 23,418 |  |  |  | 3,016 |
Total |  |  | 1,064,856 |  |  |  | 939,661 |
Less: non-current |  |  | (609,887 | ) |  |  | (782,143 | )
Current |  | ￦ | 454,969 |  |  | ￦ | 157,518 |
1 | According to a derivative arrangement with LS Marine Solution Co., Ltd. (formerly KT Submarine Co., Ltd.), derivative assets amounting to ￦ 1,015 million is included as of December 31, 2023. (Note 19).
Summary of Impairment of Trade Receivable | Impairment of trade receivable for the years ended December 31, 2022 and 2023, are as follows:
(in millions of Korean won) |  | 2022 |  |  | 2023 |
Impairment loss Bad debt expenses |  | ￦ | 64,522 |  |  | ￦ | 69,972 |
Summary of Contractual Undiscounted Cash Flows | These amounts are contractual undiscounted cash flows and can differ from the amount in the consolidated financial statements.
|  | December 31, 2022 |
(in millions of Korean won) |  | Less than 1 year |  |  | 1-5 years |  |  | More than 5 years |  |  | Total |
Trade and other payables |  | ￦ | 7,386,703 |  |  | ￦ | 1,009,559 |  |  | ￦ | 86,848 |  |  | ￦ | 8,483,110 |
Borrowings (including debentures) |  |  | 2,028,207 |  |  |  | 6,972,077 |  |  |  | 2,016,472 |  |  |  | 11,016,756 |
Lease liabilities |  |  | 313,162 |  |  |  | 615,766 |  |  |  | 407,833 |  |  |  | 1,336,761 |
Other non-derivative financial liabilities |  |  | 33,279 |  |  |  | 209,155 |  |  |  | 93,744 |  |  |  | 336,178 |
Financial guarantee contracts 1 |  |  | 21,618 |  |  |  | — |  |  |  | 4,588 |  |  |  | 26,206 |
Total |  | ￦ | 9,782,969 |  |  | ￦ | 8,806,557 |  |  | ￦ | 2,609,485 |  |  | ￦ | 21,199,011 |
| 1 | It is total amount guaranteed by the Group according to guarantee contracts. Cash flow from financial guarantee contracts is classified as the maturity group in the earliest period when the financial guarantee contracts can be executed.
|  | December 31, 2023 |
(in millions of Korean won) |  | Less than 1 year |  |  | 1-5 years |  |  | More than 5 years |  |  | Total |
Trade and other payables |  | ￦ | 8,184,036 |  |  | ￦ | 730,340 |  |  | ￦ | 8,040 |  |  | ￦ | 8,922,416 |
Borrowings (including debentures) |  |  | 2,922,557 |  |  |  | 6,027,323 |  |  |  | 1,743,842 |  |  |  | 10,693,722 |
Lease liabilities |  |  | 313,431 |  |  |  | 617,561 |  |  |  | 409,174 |  |  |  | 1,340,166 |
Other non-derivative financial liabilities |  |  | 372,743 |  |  |  | 747,221 |  |  |  | 10,073 |  |  |  | 1,130,037 |
Financial guarantee contracts 1 |  |  | 13,719 |  |  |  | 103,000 |  |  |  | — |  |  |  | 116,719 |
Total |  | ￦ | 11,806,486 |  |  | ￦ | 8,225,445 |  |  | ￦ | 2,171,129 |  |  | ￦ | 22,203,060 |
| 1 | It is total amount guaranteed by the Group according to guarantee contracts. Cash flow from financial guarantee contracts is classified as the maturity group in the earliest period when the financial guarantee contracts can be executed.
Summary of Cash Outflow and Inflow of Derivatives Settled Gross or Net are Undiscounted Contractual Cash Flow | At the end of the reporting period, the cash outflows and inflows by maturity of the Group’s derivatives held for trading and gross-settled derivatives are as follows:
|  | December 31, 2021 |
(in millions of Korean won) |  | Less than 1 year |  |  | 1-5 years |  |  | More than 5 years |  |  | Total |
Derivatives held for trading 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outflows |  | ￦ | — |  |  | ￦ | 158,284 |  |  | ￦ | — |  |  | ￦ | 158,284 |
Derivatives settled gross 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outflows |  | ￦ | 843,489 |  |  | ￦ | 1,857,942 |  |  | ￦ | 377,302 |  |  | ￦ | 3,078,733 |
Inflows |  |  | 856,508 |  |  |  | 1,917,236 |  |  |  | 394,134 |  |  |  | 3,167,878 |
|  | December 31, 2022 |
(in millions of Korean won) |  | Less than 1 year |  |  | 1-5 years |  |  | More than 5 years |  |  | Total |
Derivatives held for trading 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outflows |  | ￦ | — |  |  | ￦ | 101,994 |  |  | ￦ | 930 |  |  | ￦ | 102,924 |
Derivatives settled gross 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outflows |  | ￦ | 472,005 |  |  | ￦ | 2,493,858 |  |  | ￦ | 28,786 |  |  | ￦ | 2,994,649 |
Inflows |  |  | 550,478 |  |  |  | 2,670,002 |  |  |  | 37,873 |  |  |  | 3,258,353 |
|  | December 31, 2023 |
(in millions of Korean won) |  | Less than 1 year |  |  | 1-5 years |  |  | More than 5 years |  |  | Total |
Derivatives held for trading 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outflows |  | ￦ | — |  |  | ￦ | 133,293 |  |  | ￦ | — |  |  | ￦ | 133,293 |
Inflows |  |  | — |  |  |  | — |  |  |  | 1,015 |  |  |  | 1,015 |
Derivatives settled gross 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outflows |  | ￦ | 741,140 |  |  | ￦ | 1,227,166 |  |  | ￦ | 8,126 |  |  | ￦ | 1,976,432 |
Inflows |  |  | 614,066 |  |  |  | 2,198,958 |  |  |  | 36,344 |  |  |  | 2,849,368 |
| 1 | During the year ended December 31, 2023, derivative liabilities held-for-trading are classified under the ‘more than one year to less than five years’ category as they are relevant to the fair value of derivatives liabilities related to shareholder-to-share contracts (Note 19).
As these derivatives held-for-trading are managed based on net fair value, their contractual maturities are not necessarily taking into consideration to understand the timing of cash flows.
| 2 | Cash outflow and inflow of gross-settled derivatives are undiscounted contractual cash flow and may differ from the amount in the consolidated statement of financial position.
Summary of Debt-to-equity Ratios | The debt-to-equity ratios as o f December 31, 2022 and 2023, are as follows:
(in millions of Korean won) |  | December 31, 2022 |  |  | December 31, 2023 |
Total liabilities |  | ￦ | 22,577,114 |  |  | ￦ | 24,249,073 |
Total equity |  |  | 18,412,696 |  |  |  | 18,542,575 |
Debt-to-equity ratio |  |  | 123 | % |  |  | 131 | %
The Group manages capital on the basis of the gearing ratio. This ratio is calculated as net debt divided by total capital. Net debt is calculated as total borrowings less cash and cash equivalents. Total capital is calculated as ‘equity’ in the statement of financial position plus net debt. The gearing ratios as of December 31, 2022 and 2023, are as follows:
(in millions of Korean won, %) |  | December 31, 2022 |  |  | December 31, 2023 |
Total borrowings |  | ￦ | 10,006,685 |  |  | ￦ | 10,218,165 |
Less: cash and cash equivalents |  |  | (2,449,062 | ) |  |  | (2,879,554 | )
Net debt |  |  | 7,557,623 |  |  |  | 7,338,611 |
Total equity |  |  | 18,412,696 |  |  |  | 18,542,575 |
Total capital |  |  | 25,970,319 |  |  |  | 25,881,186 |
Gearing ratio |  |  | 29 | % |  |  | 28 | %
Summary of Group's Recognized Financial Assets Subject to Enforceable Master Netting Arrangements or Similar Agreements |
| 1) | Details of the Group’s recognized financial assets subject to enforceable master netting arrangements or similar agreements are as follows:
(in millions of Korean won) |  | December 31, 2022 |
|  | Gross assets |  |  | Gross liabilities offset |  |  | Net amounts presented in the statement of financial position |  |  | Amounts not offset |  |  | Net amount |
| Financial instruments |  |  | Cash collateral |
Trade receivables |  | ￦ | 60,512 |  |  | ￦ | — |  |  | ￦ | 60,512 |  |  | ￦ | (44,518 | ) |  | ￦ | — |  |  | ￦ | 15,994 |
Other financial assets |  |  | 764 |  |  |  | (764 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Total |  | ￦ | 61,276 |  |  | ￦ | (764 | ) |  | ￦ | 65,012 |  |  | ￦ | (44,518 | ) |  | ￦ | — |  |  | ￦ | 15,994 |
(in millions of Korean won) |  | December 31, 2023 |
|  | Gross assets |  |  | Gross liabilities offset |  |  | Net amounts presented in the statement of financial position |  |  | Amounts not offset |  |  | Net amount |
| Financial instruments |  |  | Cash collateral |
Trade receivables |  | ￦ | 78,415 |  |  | ￦ | (1,407 | ) |  | ￦ | 77,008 |  |  | ￦ | (59,148 | ) |  | ￦ | — |  |  | ￦ | 17,860 |
Other financial assets |  |  | 759 |  |  |  | (757 | ) |  |  | 2 |  |  |  | (2 | ) |  |  | — |  |  |  | — |
Total |  | ￦ | 79,174 |  |  | ￦ | (2,164 | ) |  | ￦ | 77,010 |  |  | ￦ | (59,150 | ) |  | ￦ | — |  |  | ￦ | 17,860 |
Summary of Group's Recognized Financial Liabilities Subject to Enforceable Master Netting Arrangements or Similar Agreements |
| 2) | The Group’s recognized financial liabilities subject to enforceable master netting arrangements or similar agreements are as follows:
(in millions of Korean won) |  | December 31, 2022 |
|  | Gross liabilities |  |  | Gross assets offset |  |  | Net amounts presented in the statement of financial position |  |  | Amounts not offset |  |  | Net amount |
| Financial instruments |  |  | Cash collateral |
Trade payables |  | ￦ | 47,271 |  |  | ￦ | (764 | ) |  | ￦ | 46,507 |  |  | ￦ | (44,518 | ) |  | ￦ | — |  |  | ￦ | 1,989 |
(in millions of Korean won) |  | December 31, 2023 |
|  | Gross liabilities |  |  | Gross assets offset |  |  | Net amounts presented in the statement of financial position |  |  | Amounts not offset |  |  | Net amount |
| Financial instruments |  |  | Cash collateral |
Trade payables |  | ￦ | 59,602 |  |  | ￦ | (757 | ) |  | ￦ | 58,845 |  |  | ￦ | (56,196 | ) |  | ￦ | — |  |  | ￦ | 2,649 |
Other financial assets |  |  | 4,362 |  |  |  | (1,407 | ) |  |  | 2,955 |  |  |  | (2,955 | ) |  |  | — |  |  |  | — |
Total |  | ￦ | 63,964 |  |  | ￦ | (2,164 | ) |  | ￦ | 61,800 |  |  | ￦ | (59,151 | ) |  | ￦ | — |  |  | ￦ | 2,649 |
Trade receivables [member] |
Statement [LineItems] |
Summary of Details of Changes in Provisions for Impairment of Trade Receivables and Other Financial Assets at Amortized Costs | Details of changes in provisions for impairment of trade receivables the years ended December 31, 2022 and 2023, are as follows:
(in millions of Korean won) |  | 2022 |  |  | 2023 |
Beginning balance |  | ￦ | 349,725 |  |  | ￦ | 343,738 |
Provision |  |  | 64,522 |  |  |  | 69,972 |
Written-off |  |  | (68,298 | ) |  |  | (80,126 | )
Others |  |  | (2,211 | ) |  |  | (2,294 | )
Ending balance |  | ￦ | 343,738 |  |  | ￦ | 331,290 |
Other Financial Assets At Amortized Cost [Member] |
Statement [LineItems] |
Summary of Details of Changes in Provisions for Impairment of Trade Receivables and Other Financial Assets at Amortized Costs | Details of changes in provisions for impairment of other financial assets at amortized costs for the years ended December 31, 2022 and 2023, are as follows:
(in millions of Korean won) |  | 2022 |  |  | 2023 |
Beginning balance |  | ￦ | 201,387 |  |  | ￦ | 218,543 |
Provision |  |  | 65,941 |  |  |  | 114,501 |
Written-off |  |  | (51,383 | ) |  |  | (150,014 | )
Reversal |  |  | (850 | ) |  |  | (14,941 | )
Others |  |  | 3,448 |  |  |  | 15,547 |
Ending balance |  | ￦ | 218,543 |  |  | ￦ | 183,636 |
Currency risk [Member] |
Statement [LineItems] |
Summary of Exposures to Risks, Effects on Profit before Income Tax and Shareholders' Equity | As o f December 31, 2021, 2022 and 2023, if the foreign exchange rate had strengthened/weakened by 10% with all other variables held constant, the effects on profit before income tax and shareholders’ equity would have been as follows:
(in millions of Korean won) |  | Fluctuation of foreign exchange rate |  |  | Impact on profit before income tax 1 |  |  | Impact on equity |
2021.12.31 |  |  | 10 | % |  | ￦ | (3,433 | ) |  | ￦ | 8,692 |
|  | -10 | % |  |  | 3,433 |  |  |  | (8,692 | )
2022.12.31 |  |  | 10 | % |  | ￦ | (5,841 | ) |  | ￦ | (15,836 | )
|  | -10 | % |  |  | 5,841 |  |  |  | 15,836 |
2023.12.31 |  |  | 10 | % |  | ￦ | (10,313 | ) |  | ￦ | (18,460 | )
|  | -10 | % |  |  | 10,313 |  |  |  | 18,460 |
Summary of Details of Financial Assets and Liabilities in Foreign Currencies | Details of financial assets and liabilities in foreign currencies as at December 31, 2021, 2022 and 2023, are as follows:
(In thousands of foreign currencies) |  | 2021 |  |  | 2022 |  |  | 2023 |
| Financial assets |  |  | Financial liabilities |  |  | Financial assets |  |  | Financial liabilities |  |  | Financial assets |  |  | Financial liabilities |
USD |  |  | 245,759 |  |  |  | 2,302,642 |  |  |  | 106,426 |  |  |  | 2,336,607 |  |  |  | 139,807 |  |  |  | 2,271,673 |
SDR 1 |  |  | 255 |  |  |  | 722 |  |  |  | 255 |  |  |  | 722 |  |  |  | 254 |  |  |  | 722 |
JPY |  |  | 29,227 |  |  |  | 30,000,763 |  |  |  | 32,801 |  |  |  | 400,002 |  |  |  | 17,496 |  |  |  | 400,002 |
GBP |  |  | — |  |  |  | 1,005 |  |  |  | 30 |  |  |  | 83 |  |  |  | — |  |  |  | — |
EUR |  |  | 3,943 |  |  |  | 10,801 |  |  |  | 185 |  |  |  | 7,832 |  |  |  | 304 |  |  |  | 7,810 |
RWF 2 |  |  | 586 |  |  |  | — |  |  |  | 15,521 |  |  |  | 13,025 |  |  |  | 402 |  |  |  | — |
THB 3 |  |  | 2,160 |  |  |  | — |  |  |  | 265 |  |  |  | — |  |  |  | 244 |  |  |  | — |
TZS 4 |  |  | 1,644 |  |  |  | — |  |  |  | 1,464 |  |  |  | — |  |  |  | 21,958 |  |  |  | — |
BWP 5 |  |  | 93 |  |  |  | — |  |  |  | 183 |  |  |  | — |  |  |  | 680 |  |  |  | — |
HKD 6 |  |  | — |  |  |  | 105 |  |  |  | 37 |  |  |  | — |  |  |  | — |  |  |  | — |
VND 7 |  |  | 257,895 |  |  |  | — |  |  |  | 280,226 |  |  |  | — |  |  |  | 380,629 |  |  |  | — |
SGD 8 |  |  | 13 |  |  |  | 284,000 |  |  |  | 448 |  |  |  | 284,000 |  |  |  | 1,375 |  |  |  | — |
TWD 9 |  |  | — |  |  |  | 226 |  |  |  | — |  |  |  | — |  |  |  | 1,685 |  |  |  | — |
CHF 10 |  |  | — |  |  |  | 161 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 25 |
MYR 11 |  |  | — |  |  |  | — |  |  |  | 1 |  |  |  | — |  |  |  | — |  |  |  | — |
BGN 12 |  |  | — |  |  |  | — |  |  |  | 62 |  |  |  | — |  |  |  | — |  |  |  | — |
PKR 13 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 114,025 |  |  |  | — |
| 1 | Special Drawing Rights.
| 2 | Rwanda Franc.
| 3 | Thailand Bhat.
| 4 | Tanzanian Shilling.
| 5 | Botswana Pula.
| 6 | Hong Kong Dollar.
| 7 | Vietnam Dong.
| 8 | Singapore Dollar.
| 9 | Taiwan Dollar.
| 10 | Swiss Franc.
| 11 | Ringgit Malaysia.
| 12 | Bulgarian Lev.
| 13 | Pakistani rupee
Equity price risk [Member] |
Statement [LineItems] |
Summary of Exposures to Risks, Effects on Profit before Income Tax and Shareholders' Equity | As of December 31, 2021, 2022 and 2023, the Group is exposed to equity securities price risk because the securities held by the Group are traded in active markets. If the market prices had increased/decreased by 10% with all other variables held constant, the effects on profit before income tax and equity would have been as follows:
(in millions of Korean won) |  | Fluctuation of price |  | Impact on profit before income tax |  |  | Impact on equity |
2021.12.31 |  | 10% |  | ￦ | 2,000 |  |  | ￦ | 4,588 |
| - 10 % |  |  | (2,000 | ) |  |  | (4,588 | )
2022.12.31 |  | 10% |  | ￦ | 2,660 |  |  | ￦ | 113,948 |
| -10% |  |  | (2,660 | ) |  |  | (113,948 | )
2023.12.31 |  | 10% |  | ￦ | 1,473 |  |  | ￦ | 121,423 |
| -10% |  |  | (1,473 | ) |  |  | (121,423 | )
Interest rate risk [Member] |
Statement [LineItems] |
Summary of Exposures to Risks, Effects on Profit before Income Tax and Shareholders' Equity | As o f December 31, 2021, 2022 and 2023, if the market interest rate had increased/decreased by 100 bp with other variables held constant, the effects on profit before income tax and shareholders’ equity would be as follows:
(in millions of Korean won) |  | Fluctuation of interest rate |  |  | Impact on profit before income tax |  |  | Impact on equity |
2021.12.31 |  |  | + 100 bp |  |  | ￦ | 753 |  |  | ￦ | 5,549 |
|  | - 100 bp |  |  |  | (731 | ) |  |  | (5,675 | )
2022.12.31 |  |  | + 100 bp |  |  | ￦ | 635 |  |  | ￦ | (2,045 | )
|  | - 100 bp |  |  |  | (669 | ) |  |  | 2,100 |
2023.12.31 |  |  | + 100 bp |  |  | ￦ | (2,693 | ) |  | ￦ | (4,718 | )
|  | - 100 bp |  |  |  | 2,696 |  |  |  | 5,037 |

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