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Revenue from Contracts with Customers, Other Income and Relevant Contract Assets and Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2024
Text block Explanatory [Abstract] |
Detail Explanation of Revenue And Other Income in the consolidated Statement of operations |
| (1) | The Group has recognized the following amounts relating to revenue and other income in the statement of profit or loss:
(in millions of Korean won) |  | 2022 |  |  | 2023 |  |  | 2024 |
Revenue from contracts with customers |  | ￦ | 25,432,727 |  |  | ￦ | 26,063,185 |  |  | ￦ | 26,146,846 |
Revenue from other sources |  |  | 206,128 |  |  |  | 224,016 |  |  |  | 232,798 |
Other income (Note 26) |  |  | 595,351 |  |  |  | 308,044 |  |  |  | 344,829 |
Total revenue and other income |  | ￦ | 26,234,206 |  |  | ￦ | 26,595,245 |  |  | ￦ | 26,724,473 |
Detail Explanation of Operating Revenues And Other Income |
| (2) | Operating revenues and other income for the years ended December 31, 2022, 2023 and 2024 are as follows:
(in millions of Korean won) |  | 2022 |  |  | 2023 |  |  | 2024 |
Mobile services |  | ￦ | 7,013,889 |  |  | ￦ | 7,140,333 |  |  | ￦ | 7,318,087 |
Fixed-line services |  |  | 5,056,513 |  |  |  | 5,142,359 |  |  |  | 5,157,728 |
Fixed-line and VoIP telephone services |  |  | 1,378,265 |  |  |  | 1,249,024 |  |  |  | 1,188,365 |
Broadband Internet access services |  |  | 2,504,833 |  |  |  | 2,578,558 |  |  |  | 2,634,200 |
Data communication services |  |  | 1,173,415 |  |  |  | 1,314,777 |  |  |  | 1,335,163 |
Media and content |  |  | 3,099,776 |  |  |  | 3,206,521 |  |  |  | 3,107,444 |
Financial services |  |  | 3,836,589 |  |  |  | 3,967,763 |  |  |  | 3,742,655 |
Sale of goods |  |  | 3,393,646 |  |  |  | 3,292,514 |  |  |  | 3,373,686 |
Others |  |  | 3,833,793 |  |  |  | 3,845,755 |  |  |  | 4,024,873 |
Total |  | ￦ | 26,234,206 |  |  | ￦ | 26,595,245 |  |  | ￦ | 26,724,473 |
Detail Analysis of Contract with Customer Assets and Liabilities |
| (3) | Contract assets and liabilities recognized in relation to the revenues from contracts with customers, are as follows:
(in millions of Korean won) |  | December 31, 2023 |  |  | December 31, 2024 |
Contract assets 1 |  | ￦ | 1,130,745 |  |  | ￦ | 929,181 |
Contract liabilities 1 |  |  | 311,023 |  |  |  | 1,240,934 |
Deferred revenue 2 |  | ￦ | 81,067 |  |  | ￦ | 87,209 |
| 1 | The Group recognized contract assets of ￦ 128,375 million and contract liabilities of ￦ 967,614 million for long-term construction contract as of December 31, 2024 (2023: contract assets of ￦ 308,821 million and contract liabilities of ￦ 32,274 million). The Group recognizes contract assets as trade receivables and other receivables, and contract liabilities as other current liabilities.
| 2 | Deferred revenue recognized relating to government grant is excluded.
Detail Analysis of Contract Costs Recognized as Assets |
| (4) | The contract costs recognized as assets are as follows:
(in millions of Korean won) |  | 2022 |  |  | 2023 |  |  | 2024 |
Incremental cost of contract establishment |  | ￦ | 1,744,096 |  |  | ￦ | 1,656,711 |  |  | ￦ | 1,666,042 |
Cost of Contract performance |  |  | 73,582 |  |  |  | 70,757 |  |  |  | 72,122 |
Detail of Revenue Arising from Carried-Forward Contract Liabilities |
| (5) | For the years ended December 31, 2022, 2023 and 2024, revenue recognized from carried-forward contract liabilities and deferred revenue, is as follows:
(in millions of Korean won) |  | 2022 |  |  | 2023 |  |  | 2024 |
Revenue recognized that was included in the contract liabilities balance at the beginning of the year |  |  |  |  |  |  |  |  |  |  |  |
Allocation of the transaction price |  | ￦ | 246,843 |  |  | ￦ | 213,609 |  |  | ￦ | 199,624 |
Deferred revenue of joining/installment fee |  |  | 44,204 |  |  |  | 41,824 |  |  |  | 41,451 |
Total |  | ￦ | 291,047 |  |  | ￦ | 255,433 |  |  | ￦ | 241,075 |

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- Definition The entire disclosure for revenue from contracts with customers. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2024-01-01 -Section Presentation -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2024-en-r&doctype=Standard&dita_xref=IFRS15_g105-109_TI -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2024-01-01 -Section Disclosure -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2024-en-r&doctype=Standard&dita_xref=IFRS15_g110-129_TI -URIDate 2024-03-27 + Details
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- Definition The explanation of the significant changes in the contract assets and the contract liabilities. [Refer: Contract assets; Contract liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2024-01-01 -Paragraph 118 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2024-en-r&anchor=para_118&doctype=Standard -URIDate 2024-03-27 + Details
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