Cover Page
Cover Page | 12 Months Ended |
Dec. 31, 2020shares | |
Document Information [Line Items] | |
Document Type | 20-F |
Amendment Flag | false |
Document Period End Date | Dec. 31, 2020 |
Document Fiscal Year Focus | 2020 |
Document Fiscal Period Focus | FY |
Entity Registrant Name | KT Corporation |
Entity Central Index Key | 0000892450 |
Current Fiscal Year End Date | --12-31 |
Entity Well-known Seasoned Issuer | Yes |
Entity Current Reporting Status | Yes |
Entity Filer Category | Large Accelerated Filer |
Entity Emerging Growth Company | false |
Entity Shell Company | false |
Entity Common Stock, Shares Outstanding | 241,842,130 |
Entity Voluntary Filers | No |
Entity Address, Country | KR |
ICFR Auditor Attestation Flag | true |
Document Shell Company Report | false |
Entity Interactive Data Current | Yes |
Document Transition Report | false |
Document Annual Report | true |
ADS [Member] | |
Document Information [Line Items] | |
Trading Symbol | KT |
Title of 12(b) Security | American Depositary Shares |
Security Exchange Name | NYSE |
Ordinary shares [member] | |
Document Information [Line Items] | |
Trading Symbol | KT |
Title of 12(b) Security | Ordinary share |
Security Exchange Name | NYSE |
Consolidated Statements of Fina
Consolidated Statements of Financial Position - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Current assets | ||
Cash and cash equivalents | ₩ 2,634,624 | ₩ 2,305,894 |
Trade and other receivables, net | 4,902,471 | 5,858,696 |
Other financial assets | 1,202,840 | 868,388 |
Current income tax assets | 2,059 | 68,120 |
Inventories, net | 534,636 | 791,677 |
Assets held for sale | 1,198 | 83,602 |
Other current assets | 1,876,352 | 1,999,282 |
Total current assets | 11,154,180 | 11,975,659 |
Non-current assets | ||
Trade and other receivables, net | 1,250,769 | 1,181,798 |
Other financial assets | 544,347 | 821,658 |
Property and equipment, net | 14,206,119 | 13,785,299 |
Right-of-use assets | 1,217,179 | 1,268,329 |
Investment properties, net | 1,368,453 | 1,387,430 |
Intangible assets, net | 2,161,258 | 2,834,037 |
Investments in associates and joint ventures | 557,881 | 267,660 |
Deferred income tax assets | 433,698 | 424,856 |
Other non-current assets | 768,661 | 685,488 |
Total non-current assets | 22,508,365 | 22,656,555 |
Total assets | 33,662,545 | 34,632,214 |
Current liabilities | ||
Trade and other payables | 6,210,099 | 7,597,478 |
Borrowings | 1,418,114 | 1,185,725 |
Other financial liabilities | 2,493 | 943 |
Current income tax liabilities | 232,225 | 66,266 |
Provisions | 165,990 | 175,612 |
Deferred revenue | 60,252 | 53,473 |
Other current liabilities | 1,103,299 | 1,068,557 |
Total current liabilities | 9,192,472 | 10,148,054 |
Non-current liabilities | ||
Trade and other payables | 807,540 | 1,082,220 |
Borrowings | 5,898,184 | 6,113,142 |
Other financial liabilities | 260,676 | 149,136 |
Defined benefit liabilities, net | 378,087 | 365,663 |
Provisions | 86,202 | 78,550 |
Deferred revenue | 149,050 | 99,180 |
Deferred income tax liabilities | 429,331 | 425,468 |
Other non-current liabilities | 909,570 | 1,030,117 |
Total non-current liabilities | 8,918,640 | 9,343,476 |
Total liabilities | 18,111,112 | 19,491,530 |
Equity | ||
Share capital | 1,564,499 | 1,564,499 |
Share premium | 1,440,258 | 1,440,258 |
Retained earnings | 12,155,420 | 11,590,916 |
Accumulated other comprehensive income | 86,051 | 194,934 |
Other components of equity | (1,234,784) | (1,170,083) |
Equity attributable to owners of the Controlling Company | 14,011,444 | 13,620,524 |
Non-controlling interest | 1,539,989 | 1,520,160 |
Total equity | 15,551,433 | 15,140,684 |
Total liabilities and equity | ₩ 33,662,545 | ₩ 34,632,214 |
Consolidated Statements of Oper
Consolidated Statements of Operations - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Profit or loss [abstract] | |||
Operating revenue | ₩ 24,440,647 | ₩ 24,899,189 | ₩ 23,436,050 |
Revenue | 24,099,394 | 24,639,758 | 23,220,052 |
Others | 341,253 | 259,431 | 215,998 |
Operating expenses | 23,418,314 | 23,872,219 | 22,335,190 |
Operating profit | 1,022,333 | 1,026,970 | 1,100,860 |
Finance income | 498,614 | 424,395 | 374,243 |
Finance costs | (507,383) | (432,133) | (435,659) |
Share of net profits of associates and joint ventures | 18,041 | (3,304) | (5,467) |
Profit before income tax | 1,031,605 | 1,015,928 | 1,033,977 |
Income tax expense | 285,349 | 320,060 | 314,565 |
Profit for the year | 746,256 | 695,868 | 719,412 |
Profit for the year attributable to: | |||
Profit (loss) for the year attributable to Owners of the Controlling Company | 700,889 | 645,703 | 645,571 |
Profit (loss) for the year attributable to Non-controlling interest | ₩ 45,367 | ₩ 50,165 | ₩ 73,841 |
Earnings per share attributable to the equity holders of the Controlling Company during the year (in Korean won): | |||
Basic earnings per share | ₩ 2,858 | ₩ 2,634 | ₩ 2,634 |
Diluted earnings per share | ₩ 2,858 | ₩ 2,632 | ₩ 2,634 |
Consolidated Statements of Comp
Consolidated Statements of Comprehensive Income - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Statement of comprehensive income [abstract] | |||
Profit for the year | ₩ 746,256 | ₩ 695,868 | ₩ 719,412 |
Other comprehensive income Items that will not be reclassified to profit or loss: | |||
Remeasurements of the net defined benefit liability | (60,181) | (25,777) | (73,511) |
Shares of remeasurement gain (loss) of associates and joint ventures | 786 | 649 | (816) |
Gain on valuation of equity instruments at fair value through other comprehensive income | 51,696 | 155,319 | 43,077 |
Other comprehensive income, Items that may be subsequently reclassified to profit or loss: | |||
Gain on valuation of debt instruments at fair value through other comprehensive income | (9,699) | 11,833 | 734 |
Valuation gain (loss) on cash flow hedge | (84,044) | 67,548 | 17,268 |
Other comprehensive income (loss) from cash flow hedges reclassified to profit (loss) | 111,431 | (44,684) | (44,279) |
Share of other comprehensive income (loss) from associates and joint ventures | 15,932 | 2,517 | (41) |
Exchange differences on translation of foreign operations | (2,666) | 4,933 | 2,940 |
Total other comprehensive income (loss) | 23,255 | 172,338 | (54,628) |
Total comprehensive income for the year | 769,511 | 868,206 | 664,784 |
Total comprehensive income for the year attributable to: | |||
Owners of the Controlling Company | 727,077 | 768,341 | 589,179 |
Non-controlling interest | ₩ 42,434 | ₩ 99,865 | ₩ 75,605 |
Consolidated Statements of Chan
Consolidated Statements of Changes in Equity - KRW (₩) ₩ in Millions | Total | Share capital [member] | Share premium [member] | Retained earnings [member] | Accumulated other comprehensive income [member] | Other components of equity [member] | Total attributable to owners of the Controlling Company [member] | Non-controlling interest [member] |
Beginning balance (Adjusted [member]) at Dec. 31, 2017 | ₩ 14,232,276 | ₩ 1,564,499 | ₩ 1,440,258 | ₩ 10,915,203 | ₩ 48,726 | ₩ (1,205,302) | ₩ 12,763,384 | ₩ 1,468,892 |
Beginning balance at Dec. 31, 2017 | 13,183,354 | 1,564,499 | 1,440,258 | 9,961,150 | 30,985 | (1,205,302) | 11,791,590 | 1,391,764 |
Changes in value of available-for-sale financial assets | Increase (decrease) due to changes in accounting policy required by IFRSs [member] | 1,048,922 | 954,053 | 17,741 | 971,794 | 77,128 | |||
Comprehensive income | ||||||||
Profit for the year | 719,412 | 645,571 | 645,571 | 73,841 | ||||
Remeasurements of net defined benefit liabilities | (73,511) | (61,449) | (61,449) | (12,062) | ||||
Share of gain on remeasurements of associates and joint ventures | (816) | (816) | (816) | |||||
Share of other comprehensive income of associates and joint ventures | (41) | (136) | (136) | 95 | ||||
Valuation gains (losses) on cashflow hedge | (27,011) | (27,011) | (27,011) | |||||
Gain(loss) on disposal of equity instruments at fair value through other comprehensive income | 4,441 | (4,441) | ||||||
Gain on valuation of financial instruments at fair value through other comprehensive income | 43,811 | 30,731 | 30,731 | 13,080 | ||||
Exchange differences on translation of foreign operations | 2,940 | 2,289 | 2,289 | 651 | ||||
Total comprehensive income for the year | 664,784 | 587,747 | 1,432 | 589,179 | 75,605 | |||
Transactions with equity holders | ||||||||
Dividends paid by the Controlling Company | (245,097) | (245,097) | (245,097) | |||||
Dividends paid to non-controlling interest of subsidiaries | (53,535) | (53,535) | ||||||
Changes in consolidation scope | (1,701) | (1,803) | (1,803) | 102 | ||||
Changes in ownership interest in subsidiaries | 48,589 | 11,118 | 11,118 | 37,471 | ||||
Appropriation of loss on disposal of treasury stock | (2,046) | 2,046 | ||||||
Disposal of treasury stock | 9,547 | 9,547 | 9,547 | |||||
Others | 3,627 | 262 | 3,311 | 3,573 | 54 | |||
Subtotal | (238,570) | (246,881) | 24,219 | (222,662) | (15,908) | |||
Ending balance (Adjusted [member]) at Dec. 31, 2018 | 14,654,600 | 1,564,499 | 1,440,258 | 11,252,179 | 50,158 | (1,181,083) | 13,126,011 | 1,528,589 |
Ending balance at Dec. 31, 2018 | 14,658,490 | 1,564,499 | 1,440,258 | 11,256,069 | 50,158 | (1,181,083) | 13,129,901 | 1,528,589 |
Changes in value of available-for-sale financial assets | Increase (decrease) due to changes in accounting policy required by IFRSs [member] | (3,890) | (3,890) | (3,890) | |||||
Comprehensive income | ||||||||
Profit for the year | 695,868 | 645,703 | 645,703 | 50,165 | ||||
Remeasurements of net defined benefit liabilities | (25,777) | (22,774) | (22,774) | (3,003) | ||||
Share of gain on remeasurements of associates and joint ventures | 649 | 636 | 636 | 13 | ||||
Share of other comprehensive income of associates and joint ventures | 2,517 | 2,427 | 2,427 | 90 | ||||
Valuation gains (losses) on cashflow hedge | 22,864 | 22,850 | 22,850 | 14 | ||||
Gain on valuation of financial instruments at fair value through other comprehensive income | 167,152 | 114,869 | 114,869 | 52,283 | ||||
Exchange differences on translation of foreign operations | 4,933 | 4,630 | 4,630 | 303 | ||||
Total comprehensive income for the year | 868,206 | 623,565 | 144,776 | 768,341 | 99,865 | |||
Transactions with equity holders | ||||||||
Dividends paid by the Controlling Company | (269,659) | (269,659) | (269,659) | |||||
Dividends paid to non-controlling interest of subsidiaries | (35,500) | (35,500) | ||||||
Changes in consolidation scope | 1,539 | (245) | (245) | 1,784 | ||||
Changes in ownership interest in subsidiaries | (83,660) | (9,082) | (9,082) | (74,578) | ||||
Appropriation of loss on disposal of treasury stock | (15,169) | 15,169 | ||||||
Disposal of treasury stock | 3,346 | 3,346 | 3,346 | |||||
Others | 1,812 | 1,812 | 1,812 | |||||
Subtotal | (382,122) | (284,828) | 11,000 | (273,828) | (108,294) | |||
Ending balance at Dec. 31, 2019 | 15,140,684 | 1,564,499 | 1,440,258 | 11,590,916 | 194,934 | (1,170,083) | 13,620,524 | 1,520,160 |
Comprehensive income | ||||||||
Profit for the year | 746,256 | 700,889 | 700,889 | 45,367 | ||||
Remeasurements of net defined benefit liabilities | (60,181) | (49,554) | (49,554) | (10,627) | ||||
Share of gain on remeasurements of associates and joint ventures | 786 | 410 | 410 | 376 | ||||
Share of other comprehensive income of associates and joint ventures | 15,932 | 14,701 | 14,701 | 1,231 | ||||
Valuation gains (losses) on cashflow hedge | 27,387 | 27,433 | 27,433 | (46) | ||||
Gain on valuation of financial instruments at fair value through other comprehensive income | 41,997 | 184,215 | (150,135) | 34,080 | 7,917 | |||
Exchange differences on translation of foreign operations | (2,666) | (882) | (882) | (1,784) | ||||
Total comprehensive income for the year | 769,511 | 835,960 | (108,883) | 727,077 | 42,434 | |||
Transactions with equity holders | ||||||||
Dividends paid by the Controlling Company | (269,766) | (269,766) | (269,766) | |||||
Dividends paid to non-controlling interest of subsidiaries | (40,802) | (40,802) | ||||||
Changes in ownership interest in subsidiaries | 29,825 | 11,628 | 11,628 | 18,197 | ||||
Appropriation of loss on disposal of treasury stock | (1,690) | 1,690 | ||||||
Acquisition of treasury stock | (110,097) | (110,097) | (110,097) | |||||
Disposal of treasury stock | 33,213 | 33,213 | 33,213 | |||||
Others | (1,135) | (1,135) | (1,135) | |||||
Subtotal | (358,762) | (271,456) | (64,701) | (336,157) | (22,605) | |||
Ending balance at Dec. 31, 2020 | ₩ 15,551,433 | ₩ 1,564,499 | ₩ 1,440,258 | ₩ 12,155,420 | ₩ 86,051 | ₩ (1,234,784) | ₩ 14,011,444 | ₩ 1,539,989 |
Consolidated Statements of Cash
Consolidated Statements of Cash Flows - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Cash flows from operating activities | |||
Cash generated from operations | ₩ 4,745,293 | ₩ 4,058,065 | ₩ 4,212,222 |
Interest paid | (254,852) | (255,908) | (304,428) |
Interest received | 259,836 | 276,349 | 242,951 |
Dividends received | 19,623 | 18,922 | 14,074 |
Income tax paid | (30,073) | (352,255) | (154,355) |
Net cash inflow from operating activities | 4,739,827 | 3,745,173 | 4,010,464 |
Cash flows from investing activities | |||
Collection of loans | 63,435 | 63,517 | 64,023 |
Loans granted | (48,731) | (65,138) | (60,229) |
Disposal of financial assets at fair value through profit or loss | 528,655 | 720,148 | 397,224 |
Disposal of financial assets at amortized cost | 528,746 | 422,637 | 255,290 |
Disposal of financial assets at fair value through other comprehensive income | 351,065 | 2,474 | |
Disposal of assets held-for-sale | 83,241 | 28,834 | 9,842 |
Disposal of investments in associates and joint ventures | 24 | 16,930 | 7,832 |
Acquisition of investments in associates and joint ventures | (273,411) | (29,980) | (34,420) |
Disposal of property and equipment, and investment properties | 49,832 | 42,554 | 90,992 |
Acquisition of property and equipment, and investment properties | (3,207,566) | (3,263,338) | (2,260,879) |
Acquisition of financial assets at fair value through profit or loss | (521,142) | (793,977) | (158,787) |
Acquisition of financial assets at amortized cost | (759,180) | (501,838) | (248,789) |
Acquisition of financial assets at fair value through other comprehensive income | (14,092) | (14,277) | (16,239) |
Disposal of intangible assets | 13,362 | 12,097 | 20,037 |
Disposal of right-of-use assets | 2,023 | 9,393 | |
Discontinued operations | 205 | 1,977 | |
Acquisition of right-of-use assets | (5,824) | (6,236) | |
Acquisition of intangible assets | (511,094) | (530,775) | (746,213) |
Decrease in cash due to business combination, etc. | (41,018) | (26,288) | |
Net cash outflow from investing activities | (3,761,470) | (3,887,472) | (2,704,130) |
Cash flows from financing activities | |||
Proceeds from borrowings and debentures | 1,795,221 | 1,951,568 | 1,473,016 |
Repayments of borrowings and debentures | (1,627,354) | (1,377,394) | (1,612,731) |
Settlement of derivative assets and liabilities, net | 36,594 | 23,901 | (3,461) |
Cash outflow from consolidated capital transactions | (1,192) | (122,918) | (5,506) |
Cash inflow from other financing activities | 35,854 | 65,698 | 13,939 |
Dividends paid to shareholders | (310,567) | (305,159) | (298,632) |
Acquisition of treasury stock | (114,683) | (24,415) | |
Decrease in finance leases liabilities | (447,784) | (485,444) | (73,885) |
Decrease in other liabilities | (13,674) | ||
Net cash outflow from financing activities | (647,585) | (249,748) | (531,675) |
Effect of exchange rate change on cash and cash equivalents | (2,042) | (5,481) | 581 |
Net increase (decrease) in cash and cash equivalents | 328,730 | (397,528) | 775,240 |
Cash and cash equivalents at beginning of year | 2,305,894 | 2,703,422 | 1,928,182 |
Cash and cash equivalents at end of year | ₩ 2,634,624 | ₩ 2,305,894 | ₩ 2,703,422 |
General Information
General Information | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
General Information | 1. General Information The consolidated financial statements as of December 31, 202 0 1.1 The Controlling Company KT Corporation (the “Controlling Company”) commenced operations on January 1, 1982, when it spun off from the Korea Communications Commission (formerly the Korean Ministry of Information and Communications) to provide telephone services and to engage in the development of advanced communications services under the Act of Telecommunications of Korea. The headquarters are located in Seongnam City, Gyeonggi Province, Republic of Korea, and the address of its registered head office is 90, Buljeong-ro, Bundang-gu, On October 1, 1997, upon the announcement of the Government-Investment Enterprises Management Basic Act and the Privatization Law, the Controlling Company became a government-funded institution under the Commercial Code of Korea. On December 23, 1998, the Controlling Company’s shares were listed on the Korea Exchange. On May 29, 1999, the Controlling Company issued 24,282,195 additional shares and issued American Depository Shares (ADS), representing new shares and 20,813,311 government-owned shares, at the New York Stock Exchange. On July 2, 2001, the additional ADS representing 55,502,161 government-owned shares were issued at the New York Stock Exchange. In 2002, the Controlling Company acquired the entire government-owned shares in accordance with the Korean government’s privatization plan. As at the end of the reporting period, the Korean government does not own any share in the Controlling Company. 1.2 Consolidated Subsidiaries The consolidated subsidiaries as at December 31, 2019 and 2020, are as follows: Controlling percentage 1 Subsidiary Type of business Location December 31, December 31, Closing month KT Powertel Co., Ltd. 2 Trunk Radio System (TRS) business Korea 44.8% 44.8% December KT Linkus Co., Ltd. Public telephone maintenance Korea 92.4% 92.4% December KT Submarine Co., Ltd. 2,4 Submarine cable construction and maintenance Korea 39.3% 39.3% December KT Telecop Co., Ltd. Security service Korea 86.8% 86.8% December KT Hitel Co., Ltd. Data communication Korea 67.1% 67.1% December KT Service Bukbu Co., Ltd. Opening services of fixed line Korea 67.3% 67.3% December KT Service Nambu Co., Ltd. Opening services of fixed line Korea 77.3% 77.3% December KT Commerce Inc. B2C, B2B service Korea 100.0% 100.0% December KT Strategic Investment Fund No.2 Investment fund Korea 100.0% 100.0% December KT Strategic Investment Fund No.3 Investment fund Korea 100.0% 100.0% December KT Strategic Investment Fund No.4 Investment fund Korea 100.0% 100.0% December KT Strategic Investment Fund No.5 Investment fund Korea 100.0% 100.0% December BC-VP Investment fund Korea 100.0% 100.0% December BC Card Co., Ltd. Credit card business Korea 69.5% 69.5% December VP Inc. Payment security service for credit card, others Korea 50.9% 50.9% December H&C Network Call centre for financial sectors Korea 100.0% 100.0% December BC Card China Co., Ltd. Software development and data processing China 100.0% 100.0% December INITECH Co., Ltd. 4 Internet banking ASP and security solutions Korea 58.2% 58.2% December Smartro Co., Ltd. VAN (Value Added Network) business Korea 64.5% 64.5% December KTDS Co., Ltd. 4 System integration and maintenance Korea 95.5% 95.5% December KT M Hows Co., Ltd. Mobile marketing Korea 90.0% 90.0% December KT M&S Co., Ltd. PCS distribution Korea 100.0% 100.0% December GENIE Music Corporation (KT Music Corporation) 2,4 Online music production and distribution Korea 36.0% 36.2% December KT MOS Bukbu Co., Ltd. 4 Telecommunication facility maintenance Korea 100.0% 100.0% December KT MOS Nambu Co., Ltd. 4 Telecommunication facility maintenance Korea 98.4% 98.4% December KT Skylife Co., Ltd. 4 Satellite broadcasting business Korea 50.3% 50.3% December Skylife TV Co., Ltd. TV contents provider Korea 92.6% 92.6% December KT Estate Inc. Residential building development and supply Korea 100.0% 100.0% December KT AMC Co., Ltd. Asset management and consulting services Korea 100.0% 100.0% December NEXR Co., Ltd. Cloud system implementation Korea 100.0% 100.0% December KTGDH Co., Ltd. (KTSB Data Service) Data centre development and related service Korea 100.0% 100.0% December KT Sat Co., Ltd. Satellite communication business Korea 100.0% 100.0% December Nasmedia Co., Ltd. 3,4 Solution provider and IPTV advertisement sales business Korea 44.0% 44.0% December KT Sports Co., Ltd. Management of sports group Korea 100.0% 100.0% December KT Music Contents Fund No.1 Music contents investment business Korea 80.0% 80.0% December KT Music Contents Fund No.2 Music contents investment business Korea 100.0% 100.0% December KT-Michigan Content investment business Korea 88.6% 88.6% December Autopion Co., Ltd. Information and communication service Korea 100.0% 100.0% December KTCS Corporation 2,4 Database and online information provider Korea 30.9% 31.9% December KTIS Corporation 2,4 Database and online information provider Korea 30.1% 30.8% December KT M Mobile Co., Ltd. Special category telecommunications operator and sales of communication device Korea 100.0% 100.0% December KT Investment Co., Ltd. Technology business finance Korea 100.0% 100.0% December Whowho&Company Co., Ltd. Software development and supply Korea 100.0% 100.0% December PlayD Co., Ltd. (N Search Marketing Co., Ltd.) Advertising agency Korea 100.0% 70.4% December Next Connect PFV Residential building development and supply Korea 100.0% 100.0% December KT Rwanda Networks Ltd. Network installation and management Rwanda 51.0% 51.0% December AOS Ltd. System integration and maintenance Rwanda 51.0% 51.0% December KT Belgium Foreign investment business Belgium 100.0% 100.0% December Korea Telecom Japan Co., Ltd. Foreign telecommunication business Japan 100.0% 100.0% December KBTO sp.z o.o. Electronic communication business Poland 97.2% 97.4% December Korea Telecom China Co., Ltd. Foreign telecommunication business China 100.0% 100.0% December KT Dutch B.V. Super iMax and East Telecom management Netherlands 100.0% 100.0% December East Telecom LLC Fixed line telecommunication business Uzbekistan 91.0% 91.6% December Korea Telecom America, Inc. Foreign telecommunication business USA 100.0% 100.0% December PT. BC Card Asia Pacific Software development and supply Indonesia 99.9% 99.9% December KT Hong Kong Telecommunications Co., Ltd. Fixed line communication business Hong Kong 100.0% 100.0% December Korea Telecom Singapore Pte. Ltd. Foreign investment business Singapore 100.0% 100.0% December Texnoprosistem LLC Fixed line internet business Uzbekistan 100.0% 100.0% December Nasmedia Thailand Co., Ltd. Internet advertising solution provider Thailand 99.9% 99.9% December KT Huimangjieum Manufacturing Korea 100.0% 100.0% December GE Premier 1st Corporate Restructuring Real Estate Investment Trust Co. Residential building investment and rent Korea 63.5% 68.1% December K-REALTY Residential building Korea 100.0% 88.6% December Storywiz Co., Ltd Content and software development and supply Korea — 100.0% December KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) Telecommunication facility construction and maintenance Korea — 100.0% December 1 Sum of the ownership interests owned by the Controlling Company and subsidiaries. 2 Although the Controlling Company owns less than 50% ownership in this entity, this entity is consolidated as the Controlling Company can exercise the majority voting rights in its decision-making process at all times considering the historical voting pattern at the shareholders’ meetings. 3 Although the Controlling Company owns less than 50% ownership in this entity, this entity is consolidated as the Controlling Company holds the majority of voting right based on an agreement with other investors. 4 The number of subsidiaries’ treasury stock is deducted from the total number of shares when calculating the controlling percentage ownership. Changes in scope of consolidation in 2020 are as follows: Changes Location Name of Subsidiary Reason Included Korea Storywiz Co., Ltd Newly established Korea KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) Transferred Excluded Uzbekistan Super iMax LLC Merged Indonesia PT. KT Indonesia Liquidated Belgium KT ORS Belgium Liquidated Summarized information for consolidated subsidiaries as at and for the years ended December 31, 2018, 2019 and 2020, is as follows: (In millions of Korean won) 2018 Total Total Operating Profit (loss) for the year KT Powertel Co., Ltd. ₩ 124,064 ₩ 28,217 ₩ 65,620 ₩ (5,545 ) KT Linkus Co., Ltd. 54,147 44,895 106,337 1,216 KT Submarine Co., Ltd. 130,715 27,530 61,652 (4,286 ) KT Telecop Co., Ltd. 272,492 140,314 328,262 166 KT Hitel Co., Ltd. 272,708 66,043 279,117 657 KT Service Bukbu Co., Ltd. 30,599 23,964 195,961 (31 ) KT Service Nambu Co., Ltd. 37,452 27,939 230,088 160 BC Card Co., Ltd. 1 3,722,379 2,630,536 3,551,715 70,889 H&C Network 1 245,841 63,188 297,470 (15,944 ) Nasmedia Co., Ltd. 1 303,112 161,164 106,805 20,596 KTDS Co., Ltd. 1 148,675 95,834 434,302 8,586 KT M Hows Co., Ltd. 60,197 42,386 26,673 3,691 KT M&S Co., Ltd. 228,073 207,740 791,652 11,408 GENIE Music Corporation (KT Music Corporation) 221,559 75,827 171,314 6,374 KT MOS Bukbu Co., Ltd. 14,121 10,571 16,543 (782 ) KT MOS Nambu Co., Ltd. 14,313 8,927 14,941 (2,418 ) KT Skylife Co., Ltd. 1 816,001 149,841 694,059 52,010 KT Estate Inc. 1 1,695,995 304,712 569,269 51,854 KTGDH Co., Ltd. (KTSB Data service) 8,632 523 4,627 (9,576 ) KT Sat Co., Ltd. 685,926 173,513 137,186 4,921 KT Sports Co., Ltd. 9,560 6,376 55,565 (154 ) KT Music Contents Fund No.1 14,092 1,035 559 294 KT Music Contents Fund No.2 7,629 281 150 (142 ) KT-Michigan 12,741 — 869 (670 ) Autopion Co., Ltd. 8,838 5,801 12,035 453 KT M mobile Co., Ltd. 146,334 35,335 172,674 (10,085 ) KT Investment Co., Ltd. 1 74,580 58,040 8,095 247 KTCS Corporation 1 350,280 188,561 1,019,787 11,401 KTIS Corporation 229,246 68,997 451,532 7,900 Next connect PFV 385,769 34,370 143 (12,449 ) Korea Telecom Japan Co., Ltd. 1 1,326 2,910 1,965 (126 ) Korea Telecom China Co., Ltd. 661 22 681 10 KT Dutch B.V. 31,693 41 191 105 Super iMax LLC 4,150 4,528 4,845 (424 ) East Telecom LLC 1 16,590 14,263 15,087 2,639 Korea Telecom America, Inc. 4,218 832 7,554 350 PT. KT Indonesia 8 — — — KT Rwanda Networks Ltd. 2 144,129 162,801 15,150 (29,238 ) KT Belgium 90,172 1 29 (43 ) KT ORS Belgium 6,709 5 — (46 ) KBTO sp.zo.o. 1,364 217 202 (3,771 ) AOS Ltd. 2 14,018 4,952 6,300 (680 ) KT Hongkong Telecommunications Co., Ltd. 3,616 2,143 9,990 351 1 These companies are the intermediate controlling companies of other subsidiaries and the above financial information is from their consolidated financial statements. 2 At the end of the reporting period, convertible preferred stock issued by subsidiaries is included in liabilities. (In millions of Korean won) 2019 Total Total Operating Profit (loss) for the year KT Powertel Co., Ltd. ₩ 118,052 ₩ 19,766 ₩ 62,846 ₩ 3,085 KT Linkus Co., Ltd. 70,494 62,088 97,892 (2,258 ) KT Submarine Co., Ltd. 120,947 18,452 55,244 486 KT Telecop Co., Ltd. 279,878 153,841 332,063 (4,875 ) KT Hitel Co., Ltd. 279,818 74,769 323,065 1,426 KT Service Bukbu Co., Ltd. 64,802 58,984 219,427 (445 ) KT Service Nambu Co., Ltd. 63,917 55,548 266,148 280 BC Card Co., Ltd. 1 3,912,982 2,594,232 3,553,008 115,885 H&C Network 1 282,016 68,401 320,701 (1,593 ) Nasmedia Co., Ltd. 1 356,236 203,105 117,550 22,484 KTDS Co., Ltd. 1 158,153 105,462 428,758 9,027 KT M Hows Co., Ltd. 74,326 50,638 33,443 6,771 KT M&S Co., Ltd. 248,142 215,777 813,498 12,732 GENIE Music Corporation (KT Music Corporation) 234,131 80,952 230,480 7,658 KT MOS Bukbu Co., Ltd. 33,376 28,841 63,761 353 KT MOS Nambu Co., Ltd. 34,258 26,722 67,300 3,099 KT Skylife Co., Ltd. 1 848,276 142,839 704,996 56,008 KT Estate Inc. 1 1,686,000 295,706 485,686 48,552 KTGDH Co., Ltd. (KTSB Data service) 10,437 1,628 3,977 344 KT Sat Co., Ltd. 651,195 127,523 168,376 16,497 KT Sports Co., Ltd. 15,603 8,333 55,241 (464 ) KT Music Contents Fund No.1 10,579 1,677 521 345 KT Music Contents Fund No.2 7,675 279 331 48 KT-Michigan 11,688 61 248 (1,113 ) Autopion Co., Ltd. 7,460 4,894 5,604 (302 ) KT M mobile Co., Ltd. 135,917 30,603 161,720 (5,580 ) KT Investment Co., Ltd. 1 73,463 56,212 13,375 847 KTCS Corporation 1 378,171 213,983 944,778 7,597 KTIS Corporation 305,798 137,524 454,561 9,205 Next connect PFV 385,412 24,275 1,590 (5,898 ) Korea Telecom Japan Co., Ltd. 1 1,851 2,858 2,891 651 Korea Telecom China Co., Ltd. 879 39 844 192 KT Dutch B.V. 31,003 50 — (242 ) Super iMax LLC 3,568 5,304 4,604 (631 ) East Telecom LLC 1 20,857 16,302 17,186 2,140 Korea Telecom America, Inc. 4,611 537 6,808 572 PT. KT Indonesia 8 — — — KT Rwanda Networks Ltd. 2 132,461 183,164 18,013 (31,662 ) KT Belgium 93,321 11 — (64 ) KT ORS Belgium 6,913 14 — (43 ) KBTO sp.zo.o. 1,767 245 519 (3,457 ) AOS Ltd. 2 12,337 3,993 6,982 (591 ) KT Hongkong Telecommunications Co., Ltd. 5,126 2,923 13,321 586 KT Huimangjieum 2,129 1,019 1,027 (390 ) GE Premier 1st Corporate Restructuring Real Estate Investment Trust Co. 6,285 1,139 176 70 K-REALTY 300 — — — 1 These companies are the intermediate controlling companies of other subsidiaries and the above financial information is from their consolidated financial statements. 2 At the end of the reporting period, convertible preferred stock issued by subsidiaries is included in liabilities. ( I 2020 Total Total Operating Profit (loss) for the year KT Powertel Co., Ltd. ₩ 119,694 ₩ 18,833 ₩ 65,897 ₩ 3,809 KT Linkus Co., Ltd. 58,372 54,022 84,519 (3,212 ) KT Submarine Co., Ltd. 116,813 14,032 110,201 1,197 KT Telecop Co., Ltd. 318,456 193,737 392,489 212 KT Hitel Co., Ltd. 288,949 92,599 350,231 2,080 KT Service Bukbu Co., Ltd. 60,825 56,554 217,451 (871 ) KT Service Nambu Co., Ltd. 58,182 51,460 264,776 (456 ) BC Card Co., Ltd. 1 3,084,398 1,778,751 3,387,640 39,455 H&C Network 1 269,651 61,365 322,690 2,413 Nasmedia Co., Ltd. 1 422,039 221,371 113,136 23,134 KTDS Co., Ltd. 1 183,297 133,129 499,990 10,635 KT M Hows Co., Ltd. 104,704 76,315 44,860 6,935 KT M&S Co., Ltd. 231,260 197,306 661,533 (485 ) GENIE Music Corporation (KT Music Corporation) 250,538 88,488 247,237 9,472 KT MOS Bukbu Co., Ltd. 32,167 26,070 67,975 1,473 KT MOS Nambu Co., Ltd. 33,765 24,947 71,259 1,639 KT Skylife Co., Ltd. 1 919,476 175,039 706,631 58,190 KT Estate Inc. 1 1,689,601 325,429 365,335 14,370 KTGDH Co., Ltd. (KTSB Data Service) 11,003 1,669 4,282 538 KT Sat Co., Ltd. 630,740 92,791 173,693 14,753 KT Sports Co., Ltd. 26,572 14,940 46,608 (2,516 ) KT Music Contents Fund No.1 4,844 1,525 243 84 KT Music Contents Fund No.2 15,021 285 169 (116 ) KT-Michigan 10,382 175 111 (1,420 ) Autopion Co., Ltd. 4,903 4,961 6,174 (2,459 ) KT M Mobile Co., Ltd. 129,011 27,281 163,472 (3,617 ) KT Investment Co., Ltd. 1 115,627 93,695 47,801 4,680 KTCS Corporation 1 384,919 215,175 933,006 11,323 KTIS Corporation 294,289 126,894 454,172 7,387 Next Connect PFV 394,268 37,271 26 (7,101 ) Korea Telecom Japan Co., Ltd. 1 2,694 2,622 1,853 1 Korea Telecom China Co., Ltd. 381 21 618 (492 ) KT Dutch B.V. 1 29,585 10,109 26,782 6,061 Korea Telecom America, Inc. 4,498 125 6,808 712 KT Rwanda Networks Ltd. 2 114,768 191,781 17,870 (34,610 ) KT Belgium 87,608 — (81 ) (81 ) KBTO sp.z o.o. 438 117 490 (2,823 ) AOS Ltd. 2 11,812 3,875 5,719 296 KT Hong Kong Telecommunications Co., Ltd. 6,159 2,800 16,386 1,308 KT Huimangjieum 3,720 2,787 5,239 (13 ) GE Premier 1st Corporate Restructuring Real Estate Investment Trust Co. 5,703 1,165 333 83 Storywiz Co., Ltd 21,594 10,065 19,209 (1,954 ) KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) 138,220 102,963 346,040 (8,461 ) 1 These companies are the intermediate controlling companies of other subsidiaries and the above financial information is from their consolidated financial statements. 2 At the end of the reporting period, convertible preferred stock issued by subsidiaries is included in liabilities. |
Significant Accounting Policies
Significant Accounting Policies | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Significant Accounting Policies | 2. Significant Accounting Policies The principal accounting policies applied in the preparation of these consolidated financial statements are set out below. These policies have been consistently applied to all the years presented, unless otherwise stated . 2.1 Basis of Preparation The consolidated financial statements of the Group have been prepared in accordance with International Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standards Board (“IASB”). The financial statements have been prepared on a historical cost basis, except for the following: • Certain financial assets and liabilities (including derivative instruments) – measured at fair value • Assets held-for-sale • Defined benefit pension plans – plan assets measured at fair value The preparation of the consolidated financial statements requires the use of certain critical accounting estimates. It also requires management to exercise judgment in the process of applying the Group’s accounting policies. The areas involving a higher degree of judgment or complexity, or areas where assumptions and estimates are significant to the consolidated financial statements are disclosed in Note 3. 2.2 Changes in Accounting Policy and Disclosures (1) New and amended standards adopted by the Group The Group has applied the following standards and amendments for the first time for their annual reporting period commencing January 1, 2020. - Amendments to IAS 1 Presentation of Financial Statements Accounting policies, changes in accounting estimates and errors – Definition of Material The amendments clarify the definition of material. Information is material if omitting, misstating or obscuring it could reasonably be expected to influence the decisions that the primary users of general-purpose financial statements make on the basis of those financial statements. The amendments do not have a significant impact on the consolidated financial statements. - Amendments to IFRS 3 Business Combination – Definition of a Business The amended definition of a business requires an acquisition to include an input and a substantive process that together significantly contribute to the ability to create outputs and the definition of output excludes the returns in the form of lower costs and other economic benefits. If substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or group of similar identifiable assets, an entity may elect to apply an optional concentration test that permits a simplified assessment of whether an acquired set of activities and assets is not a business. The amendments do not have a significant impact on the consolidated financial statements. - Amendments to IFRS 9 Financial Instruments Financial Instruments: Recognition and Measurement Financial Instruments: Disclosure – Interest Rate Benchmark Reform The amendments allow to apply the exceptions when forward-looking analysis is performed in relation the application of hedge accounting, while uncertainties arising from interest rate benchmark reform exist. The exceptions require the Group assumes that the interest rate benchmark, on which the hedged items and the hedging instruments are based on, is not altered as a result of interest rate benchmark reform, when determining whether the expected cash flows are highly probable, whether an economic relationship between the hedged item and the hedging instrument exists, and when assessing the hedging relationship is highly effective. The Group’s risk exposure, directly affected by the interest rate benchmark reform, is the variable rate borrowings of USD 519,598,989 and SGD 284,000,000 with maximum remaining maturity of four years. To hedge fluctuations in cash flows of borrowings resulting from the changes in USD LIBOR of 3 months and SGD SOR of 6 months—an interest rate benchmark, the Group entered into an interest rate swap contract for a nominal amount of USD 519,598,989 and SGD 284,000,000 and designated it as a hedging instrument of cash flow hedge. - Agenda Decision of the International Accounting Standards Interpretations Committee – Lease Period The IFRS Interpretations Committee (IFRS IC) announced on December 16, 2019 that all economic penalties resulting from the termination of a lease are taken into account when determining the enforceable period for ‘Lease Term and Useful Life of Leasehold Improvements’. The Group’s changes in accounting policy have been adopted retrospectively in accordance with IAS 8 Accounting Policies, Changes in Accounting Estimates and Errors (2) New standards and interpretations not yet adopted by the Group The following new accounting standards and interpretations have been published that are not mandatory for December 31, 2020 reporting periods and have not been early adopted by the Group. - Amendments to IFRS 16 Lease – Practical expedient for COVID-19—Related As a practical expedient, a lessee may elect not to assess whether a rent concession occurring as a direct consequence of the COVID-19 - Amendments to IFRS 9 Financial Instruments, Financial Instruments: Recognition and Measurement, Financial Instruments: Disclosure, Insurance Contracts Lease – Interest Rate Benchmark Reform In relation to interest rate benchmark reform, the amendments provide exceptions including adjust effective interest rate instead of book amounts when interest rate benchmark of financial instruments at amortized costs is replaced, and apply hedge accounting without discontinuance although the interest rate benchmark is replaced in hedging relationship. The amendments should be applied for annual periods beginning on or after January 1, 2021, and earlier application is permitted. The Group is in review for the impact of these amendments on the financial statements. - Amendments to IFRS 3 Business Combination – Reference to the Conceptual Framework The amendments update a reference of definition of assets and liabilities qualify for recognition in revised Conceptual Framework for Financial Reporting. However, the amendments add an exception for the recognition of liabilities and contingent liabilities within the scope of IAS 37 Provisions, Contingent Liabilities and Contingent Assets Levies - Amendments to IAS 16 Property, Plant and Equipment—Proceeds Before Intended Use The amendments prohibit an entity from deducting from the cost of an item of property, plant and equipment any proceeds from selling items produced while the entity is preparing the asset for its intended use. Instead, the entity will recognize the proceeds from selling such items, and the costs of producing those items, in profit or loss. The amendments should be applied for annual periods beginning on or after January 1, 2022, and earlier application is permitted. The Group is in review for the impact of these amendments on the financial statements. - Amendments to IAS 37 Provisions, Contingent Liabilities and Contingent Assets—Onerous Contracts: Cost of Fulfilling a Contract The amendments clarify that the direct costs of fulfilling a contract include both the incremental costs of fulfilling the contract and an allocation of other costs directly related to fulfilling contracts when assessing whether the contract is onerous. The amendments should be applied for annual periods beginning on or after January 1, 2022, and earlier application is permitted. The Group does not expect that these amendments have a significant impact on the financial statements. - Annual improvements to IFRS 2018-2020 Annual improvements of IFRS 2018-2020 Cycle should be applied for annual periods beginning on or after January 1, 2022, and earlier application is permitted. The Group does not expect that these amendments have a significant impact on the financial statements. • IFRS 1 First time Adoption of Korean International Financial Reporting Standards • IFRS 9 Financial Instruments • IFRS 16 Leases • IAS 41 Agricultur - Amendments to IAS 1 Presentation of Financial Statements—Classification of Liabilities as Current or Non-Current The amendments clarify that liabilities are classified as either current or non-current, 2.3 Consolidation The Group has prepared the consolidated financial statements in accordance with IFRS 10 Consolidated Financial Statements (1) Subsidiaries Subsidiaries are all entities (including special purpose entities (“SPEs”)) over which the Group has control. The Group controls an entity when the Group is exposed to, or has rights to, variable returns from its involvement with the entity and has the ability to affect those returns through its power to direct the activities of the entity. Subsidiaries are fully consolidated from the date on which control is transferred to the Group. They are deconsolidated from the date that control ceases. The acquisition method of accounting is used to account for business combinations by the Group. The consideration transferred is measured at the fair values of the assets transferred, and identifiable assets acquired and liabilities and contingent liabilities assumed in a business combination are measured initially at their fair values at the acquisition date. The Group recognizes any non-controlling acquisition-by-acquisition non-controlling non-controlling The excess of consideration transferred, amount of any non-controlling Intercompany transactions, balances and unrealized gains on transactions between group companies are eliminated. Unrealized losses are also eliminated unless the transaction provides evidence of an impairment of the transferred asset. Accounting policies of subsidiaries have been changed where necessary to ensure consistency with the policies adopted by the Group. (2) Changes in ownership interests in subsidiaries without change of control Any difference between the amount of the adjustment to non-controlling (3) Disposal of subsidiaries When the Group ceases to consolidate for a subsidiary because of a loss of control, any retained interest in the subsidiary is remeasured to its fair value with the change in carrying amount recognized in profit or loss. (4) Associates Associates are entities over which the Group has significant influence but does not possess control or joint control. Investments in associates are accounted for using the equity method of accounting, after initially being recognized at cost. Unrealized gains on transactions between the Group and its associates are eliminated to the extent of the Group’s interest in the associates. If the Group’s share of losses of an associate equals or exceeds its interest in the associate (including long-term interests that, in substance, form part of the Group’s net investment in the associate), the Group discontinues recognizing its share of further losses. After the Group’s interest is reduced to zero, additional losses are provided for, and a liability is recognized, only to the extent that the Group has incurred legal or constructive obligations or made payments on behalf of the associate. If there is an objective evidence of impairment for the investment in the associate, the Group recognizes the difference between the recoverable amount of the associate and its book amount as impairment loss. If an associate uses accounting policies other than those of the Group for transactions and events in similar circumstances, if necessary, adjustments shall be made to make the associate’s accounting policies conform to those of the Group when the associate’s financial statements are used by the Group in applying the equity method. (5) Joint arrangement A joint arrangement, wherein two or more parties have joint control, is classified as either a joint operation or a joint venture. A joint operator recognizes its direct right to the assets, liabilities, revenues and expenses of joint operations and its share of any jointly held or incurred assets, liabilities, revenues and expenses. A joint venture has rights to the net assets relating to the joint venture and accounts for that investment using the equity method. 2.4 Segment Reporting Information of each operating segment is reported in a manner consistent with the business segment reporting provided to the chief operating decision-maker (Note 34). The chief operating decision-maker is responsible for allocating resources and assessing performance of the operating segments. 2.5 Foreign Currency Translation (1) Functional and presentation currency Items included in the financial statements of each of the Group’s entities are measured using the currency of the primary economic environment in which each entity operates (the “functional currency”). The consolidated financial statements are presented in Korean won, which is the Parent Company’s functional and presentation currency. (2) Transactions and balances Foreign currency transactions are translated into the functional currency using the exchange rates at the dates of the transactions. Foreign exchange gains and losses resulting from the settlement of such transactions and from the translation of monetary assets and liabilities denominated in foreign currencies at year end exchange rates are generally recognized in profit or loss. They are deferred in other comprehensive income if they relate to qualifying cash flow hedges and qualifying effective portion of net investment hedges, or are attributable to monetary part of the net investment in a foreign operation. Foreign exchange gains and losses that relate to borrowings are presented in the consolidated statements of operations, within finance costs. All other foreign exchange gains and losses are presented in the consolidated statements of operations within operating revenue or operating expenses. Non-monetary non-monetary non-monetary (3) Translation to the presentation currency The results and financial position of foreign operations that have a functional currency different from the presentation currency are translated into the presentation currency as follows: • assets and liabilities for each statement of financial position presented are translated at the closing rate at the end of the reporting period, • income and expenses for each consolidated statements of operations are translated at average exchange rates for the period, • equity is translated at the historical exchange rate, and • all resulting exchange differences are recognized in other comprehensive income. 2.6 Cash and cash equivalents Cash and cash equivalents comprise cash balances, call deposits and investment securities with maturities of three months or less from the acquisition date that are easily convertible to cash and subject to an insignificant risk of changes in their fair value. 2.7 Financial Assets The Group has applied IFRS 9 Financial Instruments, on January 1, 2018, the date of initial application. In accordance with the transitional provisions in IFRS 9, the Group recorded the cumulative effect as at the date of the initial application of the standards as an adjustment to the initial balance in the retained earnings. (1) Classification The Group classifies its financial assets in the following measurement categories: • those to be measured at fair value through profit or loss • those to be measured at fair value through other comprehensive income, and • those to be measured at amortized cost. The classification depends on the Group’s business model for managing the financial assets and the contractual terms of the cash flows. For financial assets measured at fair value, gains and losses will either be recorded in profit or loss or other comprehensive income. For investments in debt instruments, this will depend on the business model in which the investment is held. The Group reclassifies debt investments when, and only when its business model for managing those assets changes. For investments in equity instruments that are not held for trading, this will depend on whether the Group has made an irrevocable election at the time of initial recognition to account for the equity investment at fair value through other comprehensive income. Changes in fair value of the investments in equity instruments that are not accounted for as other comprehensive income are recognized in profit or loss. (2) Measurement At initial recognition, the Group measures a financial asset at its fair value plus, in the case of a financial asset not at fair value through profit or loss, transaction costs that are directly attributable to the acquisition of the financial asset. Transaction costs of financial assets carried at fair value through profit or loss are expensed in profit or loss. Hybrid (combined) contracts with embedded derivatives are considered in their entirety when determining whether their cash flows are solely payment of principal and interest. A. Debt instruments Subsequent measurement of debt instruments depends on the Group’s business model for managing the asset and the cash flow characteristics of the asset. The Group classifies its debt instruments into one of the following three measurement categories: • Amortized cost: Assets that are held for collection of contractual cash flows where those cash flows represent solely payments of principal and interest are measured at amortized cost. A gain or loss on a debt investment that is subsequently measured at amortized cost and is not part of a hedging relationship is recognized in profit or loss when the asset is derecognized or impaired. Interest income from these financial assets is included in ‘finance income’ using the effective interest rate method. • Fair value through other comprehensive income: Assets that are held for collection of contractual cash flows and for selling the financial assets, where the assets’ cash flows represent solely payments of principal and interest, are measured at fair value through other comprehensive income. Movements in the carrying amount are taken through other comprehensive income, except for the recognition of impairment loss (and reversal of impairment loss), interest income and foreign exchange gains and losses which are recognized in profit or loss. When the financial asset is derecognized, the cumulative gain or loss previously recognized in other comprehensive income is reclassified from equity to profit or loss. Interest income from these financial assets is included in ‘finance income’ using the effective interest rate method. Foreign exchange gains and losses are presented in ‘finance income or finance costs’ and impairment loss in ‘finance costs or operating expenses’. • Fair value through profit or loss: Assets that do not meet the criteria for amortized cost or fair value through other comprehensive income are measured at fair value through profit or loss. A gain or loss on a debt investment that is subsequently measured at fair value through profit or loss and is not part of a hedging relationship is recognized in profit or loss and presented net in the consolidated statements of operations within ‘finance income or finance costs’ in the period in which it arises. B. Equity instruments The Group subsequently measures all equity investments at fair value. Where the Group’s management has elected to present fair value gains and losses on equity investments in other comprehensive income, there is no subsequent reclassification of fair value gains and losses to profit or loss following the derecognition of the investment. Dividends from such investments continue to be recognized in profit or loss as ‘finance income’ when the Group’s right to receive payments is established. Changes in the fair value of financial assets at fair value through profit or loss are recognized in ‘finance income or finance costs’ in the consolidated statements of operations as applicable. Impairment loss (and reversal of impairment loss) on equity investments measured at fair value through other comprehensive income are not reported separately from other changes in fair value. (3) Impairment The Group assesses on a forward looking basis the expected credit losses associated with its debt instruments carried at amortized cost and fair value through other comprehensive income. The impairment methodology applied depends on whether there has been a significant increase in credit risk. For trade receivables and lease receivables, the Group applies the simplified approach, which requires expected lifetime credit losses to be recognized from initial recognition of the receivables. (4) Recognition and Derecognition Regular way purchases and sales of financial assets are recognized or derecognized on trade-date, the date on which the Group commits to purchase or sell the asset. Financial assets are derecognized when the rights to receive cash flows from the financial assets have expired or have been transferred and the Group has transferred substantially all the risks and rewards of ownership. If a transfer does not result in derecognition because the Group has retained substantially all the risks and rewards of ownership of the transferred asset, the Group continues to recognize the transferred asset in its entirety and recognizes a financial liability for the consideration received. (5) Offsetting of financial instruments Financial assets and liabilities are offset and the net amount reported in the statements of financial position where there is a legally enforceable right to offset the recognized amounts and there is an intention to settle on a net basis or realize the assets and settle the liability simultaneously. The legally enforceable right must not be contingent on future events and must be enforceable in the normal course of business and in the event of default, insolvency or bankruptcy of the Group or the counterparty. 2.8 Derivative Instruments Derivatives are initially recognized at fair value on the date a derivative contract is entered into and are subsequently remeasured to their fair value at the end of each reporting period. The accounting for subsequent changes in fair value depends on whether the derivative is designated as a hedging instrument, and if so, the nature of the item being hedged. The Group has hedge relationships and designates certain derivatives as: • hedges of a particular risk associated with the cash flows of recognized assets and liabilities and highly probable forecast transactions (cash flow hedges) At inception of the hedge relationship, the Group documents the economic relationship between hedging instruments and hedged items including whether changes in the cash flows of the hedging instruments are expected to offset changes in the cash flows of hedged items. The fair values of derivative financial instruments designated in hedge relationships are disclosed in Note 37. The full fair value of a hedging derivative is classified as a non-current non-derivative non-derivative non-current The effective portion of changes in fair value of derivatives that are designated and qualify as cash flow hedges is recognized in the cash flow hedge reserve within equity, and the ineffective portion is recognized in ‘finance income (costs)’. Amounts of changes in fair value of effective hedging instruments accumulated in equity are recognized as ‘finance income (costs)’ for the periods when the corresponding transactions affect profit or loss. When a hedging instrument expires, or is sold, terminated, exercised, or when a hedge no longer meets the criteria for hedge accounting, any accumulated cash flow hedge reserve at that time remains in equity until the forecast transaction occurs, resulting in the recognition of a non-financial 2.9 Trade Receivable s Trade receivables are recognized initially at the amount of consideration that is unconditional, unless they contain significant financing components when they are recognized at fair value. Trade receivables are subsequently measured at amortized cost using the effective interest method, less loss allowance. See Note 6 for further information about the Group’s accounting for trade receivables and Note 2. 7 2.10 Inventories Inventories are stated at the lower of cost and net realizable value. Cost is determined using the moving average method, except for inventories in-tran s . 2.1 1 Assets (or Disposal Group) Held-for-sale Assets(or disposal group) are classified as assets held for sale when their carrying amount will be recovered principally through a sale transaction rather than through continued use and when a sale is considered highly probable. The assets are measured at the lower amount between their carrying amount and the fair value less selling costs. 2.1 2 Property and Equipment Property and equipment are stated at historical cost less accumulated depreciation and accumulated impairment losses. Historical cost includes expenditures that are directly attributable to the acquisition of the items. Depreciation of all property and equipment, except for land, is calculated using the straight-line method to allocate their cost, net of their residual values, over their estimated useful lives as follows: Estimated Useful Life Buildings 5 – 40 years Structures 5 – 40 years Machinery and equipment (Telecommunications equipment and others) 2 – 40 years Others Vehicles 4 – 6 years Tools 4 – 6 years Office equipment 2 – 6 years The depreciation method, residual values and useful lives of property and equipment are reviewed at the end of each reporting period and, if appropriate, accounted for as changes in accounting estimates. 2.13 Investment Property Investment property is a property held to earn rentals or for capital appreciation. An investment property is measured initially at its cost. After recognition as an asset, investment property is carried at cost less accumulated depreciation and impairment losses. Investment property, except for land, is depreciated using the straight-line method over their useful lives from 10 to 40 years. 2.14 Intangible Assets (1) Goodwill Goodwill is measured as explained in Note 2.3 (1) and goodwill arising from acquisition of subsidiaries and business are included in intangible assets. Goodwill is tested at least annually for impairment and carried at cost less accumulated impairment losses. Gains and losses on the disposal of subsidiaries and business include the carrying amount of goodwill relating to the subsidiaries and business sold. For the purpose of impairment testing, goodwill acquired in a business combination is allocated to each of the CGUs, or group of CGUs, that is expected to benefit from the synergies of the combination. Goodwill is monitored at the operating segment level. Goodwill impairment reviews are undertaken at least annually or more frequently if events or changes in circumstances indicate a potential impairment. The carrying amount of goodwill is compared to the recoverable amount, which is the higher of value in use and the fair value less costs to sell. Any impairment is recognized immediately as an expense and is not subsequently reversed. (2) Intangible assets except goodwill Intangible assets, except for goodwill, are initially recognized at its historical cost, and carried at cost less accumulated amortization and accumulated impairment losses. Membership rights (condominium membership and golf membership) that have an indefinite useful life are not subject to amortization because there is no foreseeable limit to the period over which the assets are expected to be utilized. The Group amortizes intangible assets with a limited useful life using the straight-line method over the following periods: Estimated Useful Life Development costs 5 – 6 years Software 4 – 6 years Frequency usage rights 5 – 10 years Others 1 1 – 50 years 1 Membership rights (condominium membership and golf membership) and broadcast license included in others are classified as intangible assets with indefinite useful life. 2.15 Borrowing Costs General and specific borrowing costs that are directly attributable to the acquisition, construction or production of a qualifying asset are capitalized during the period of time that is required to complete and prepare the asset for its intended use or sale. Investment income earned on the temporary investment of specific borrowings pending their expenditure on qualifying assets is deducted from the borrowing costs eligible for capitalization. Other borrowing costs are expensed in the period in which they are incurred. 2.16 Government Grants Grants from the government are recognized at their fair value where there is a reasonable assurance that the grant will be received and the Group will comply with all attached conditions. Government grants related to assets are presented in the statement of financial position by setting up the grant as deferred income that is recognized in profit or loss on a systematic basis over the useful life of the asset. Grants related to income are presented as a credit in the consolidated statements of operations. 2.17 Impairment of Non-Financial Goodwill and intangible assets with indefinite useful life are tested at least annually for impairment at the end of each reporting period. If certain assets are deemed to be impaired, their recoverable amount is estimated in order to determine the impairment loss. The Group estimates the recoverable amount for each asset, and in cases when the recoverable amount cannot be estimated for an asset, the recoverable amount of the cash generating unit to which the asset belongs is estimated. Corporate assets are allocated to individual cash generating units on a reasonable and consistent basis and if they cannot be allocated to individual cash generating units, they are allocated to the smallest group of cash generating units on a reasonable and consistent basis. An impairment loss is recognized for the amount by which the asset’s carrying amount exceeds its recoverable amount (higher of its fair value less costs of disposal and value in use). Impairment loss on non-financial 2.1 8 Trade and other payables These amounts represent liabilities for goods and services provided to the Group prior to the end of reporting period which are unpaid. Trade and other payables are presented as current liabilities, unless payment is not due within 12 months after the reporting period. They are recognized initially at their fair value and subsequently measured at amortized cost using the effective interest method. 2.1 9 Financial Liabilities (1) Classification and measurement The Group’s financial liabilities measured at fair value through profit or loss are financial instruments held for trading. A financial liability is held for trading if it is incurred principally for the purpose of repurchasing in the near term. Derivatives that are not designated as hedging instruments or derivatives separated from financial instruments containing embedded derivatives are also categorized as held for trading. All non-derivative • Financial liabilities at fair value through profit or loss • Financial guarantee contract • Financial liabilities arising when the transfer of financial assets does not meet the elimination conditions Financial liabilities measured at amortized cost are displayed in the statement of financial position as ‘Trade and other payables’, ‘Borrowings’ and ‘Other financial liabilities’. Preferred shares that require mandatory redemption at a particular date are classified as liabilities. Interest expenses on these preferred shares using the effective interest method are recognized in the consolidated statements of operations as ‘finance costs’, together with interest expenses recognized from other financial liabilities. (2) Derecognition Financial liabilities are removed from the statement of financial position when they are extinguished; for example, when the obligation specified in the contract is discharged or cancelled or expired or when the terms of an existing financial liability are substantially modified. The difference between the carrying amount of a financial liability extinguished or transferred to another party and the consideration paid (including any non-cash 2.20 Financial Guarantee Contracts Financial guarantee contracts are recognized as a financial liability at the time the guarantee is issued. The liability is initially measured at fair value, subsequently at the higher of following and recognized in the statement of financial position within ‘other financial liabilities’. • the amount determined in accordance with the expected credit loss model under IFRS 9 Financial Instruments • the amount initially recognized less, where appropriate, the cumulative amount of income recognized in accordance with IFRS 15 Revenue from Contracts with Customers 2. 21 Employee Benefits (1) Post-employment be |
Critical Accounting Estimates a
Critical Accounting Estimates and Assumptions | 12 Months Ended |
Dec. 31, 2020 | |
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Critical Accounting Estimates and Assumptions | 3. Critical Accounting Estimates and Assumptions The Group makes estimates and assumptions concerning the future. The estimates and assumptions are continuously evaluated and are based on historical experience and other factors, including expectations of future events that are believed to be reasonable under the current circumstances. Actual results may differ from these estimates. During 2020, the spread of Coronavirus disease 2019 (“COVID-19”) Significant accounting estimates and assumptions applied in the preparation of the consolidated financial statements can be adjusted depending on changes in the uncertainty from COVID-19. COVID-19 The estimates and assumptions that have a significant risk of causing a material adjustment to the carrying amounts of assets and liabilities within the next financial year are discussed below. Additional information of significant judgement and assumptions of certain items are included in relevant notes. 3.1 Impairment of Non-Financial The Group determines the recoverable amount of a cash generating unit (CGU) based on fair value or value-in-use non-financial 3.2 Income Taxes The Group’s taxable income generated from these operations are subject to income taxes based on tax laws and interpretations of tax authorities in numerous jurisdictions. There are many transactions and calculations for which the ultimate tax determination is uncertain (Note 29). If certain portion of the taxable income is not used for investments or increase in wages or dividends in accordance with the Tax System For Recirculation of Corporate Income, the Group is liable to pay additional income tax calculated based on the tax laws. Accordingly, the measurement of current and deferred income tax is affected by the tax effects from the new tax system. As the Group’s income tax is dependent on the investments, increase in wages and dividends, there is an uncertainty measuring the final tax effects. 3.3 Fair Value of Derivatives and Financial Instruments The fair value of financial instruments that are not traded in an active market is determined by using valuation techniques. The Group uses its judgment to select a variety of methods and make assumptions that are mainly based on market conditions existing at the end of each reporting period (Note 37). 3.4 Impairment of Financial Assets The provision for impairment for financial assets are based on assumptions about risk of default and expected loss rates. The Group uses judgement in making these assumptions and selecting the inputs to the impairment calculation based on the Group’s past history, existing market conditions as well as forward looking estimates at the end of each reporting period (Note 36). 3.5 Net Defined Benefit Liability The present value of net defined benefit liability depends on a number of factors that are determined on an actuarial basis using a number of assumptions including the discount rate (Note 18). 3.6 Amortization of Contract Assets, Contract Liabilities and Contract Cost Assets Contract assets, contract liabilities and contract cost assets recognized under the application of IFRS 15 are amortized over the expected periods of customer relationships. The estimate of the expected terms of customer relationship is based on the historical data. If management’s estimate changes, it may cause significant differences in the timing of revenue recognition and amounts recognized. 3.7 Provisions As described in Note 17, the Group records provisions for litigation and assets retirement obligations at the end of the reporting period. The provisions are estimated based on the factors such as the historical experiences. 3.8 Useful Lives of Property and Equipment and Investment Property The property and equipment, intangible assets, and investment properties, excluding land, goodwill, condominium memberships and golf club memberships are depreciated using the straight-line method over their useful lives. The estimated useful lives are determined based on expected usage of the assets and the estimates can be materially affected by technical changes and other factors. The Group will increase depreciation expenses if the useful lives are considered shorter than the previously estimated useful lives. 3.9 Lease Term In determining the lease term, management considers the facts and circumstances that create an economic incentive to exercise an extension option, or not exercise a termination option. Extension options (or periods after termination options) are only included in the lease term if the lease is reasonably certain to be extended (or not terminated). For leases of property, machinery and communication line facilities, the following factors are normally the most relevant: • If there are significant penalties to terminate (or not extend), the Group is typically reasonably certain to extend (or not terminate). • If any leasehold improvements are expected to have a significant remaining value, the Group is typically reasonably certain to extend (or not terminate). • Otherwise, the Group considers other factors including historical lease durations and the costs and business disruption required to replace the leased asset. Most extension options in offices, retail stores and vehicles leases have not been included in the lease liability, because the Group could replace the assets without significant cost or business disruption. The lease term is reassessed if an option is actually exercised (or not exercised) or the Group becomes obliged to exercise (or not exercise) it. The assessment of reasonable certainty is only revised if a significant event or a significant change in circumstances occurs, which affects this assessment, and that is within the control of the lessee. Details on the current period’s financial impact from changes in accounting policies, to reflect exercising extension and termination options, are disclosed in Note 41. |
Financial Instruments by Catego
Financial Instruments by Category | 12 Months Ended |
Dec. 31, 2020 | |
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Financial Instruments by Category | 4. Financial Instruments by Category Financial instruments by category as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 Financial assets Financial assets at cost Financial Financial Derivatives Total Cash and cash equivalents ₩ 2,305,894 ₩ — ₩ — ₩ — ₩ 2,305,894 Trade and other receivables 1 5,748,459 — 1,256,266 — 7,004,725 Other financial assets 441,804 632,324 557,342 58,576 1,690,046 1 Lease receivables and others which are not applied to financial instruments by category are excluded. (In millions of Korean won) December 31, 2019 Financial liabilities Financial Financial Derivatives Total Trade and other payables ₩ 8,679,698 ₩ — ₩ — ₩ 8,679,698 Borrowings 7,298,867 — — 7,298,867 Other financial liabilities 129,945 38 20,096 150,079 (In millions of Korean won) December 31, 2020 Financial assets Financial Financial Financial Derivatives Total Cash and cash equivalents ₩ 2,634,624 ₩ — ₩ — ₩ — ₩ 2,634,624 Trade and other receivables 1 4,976,423 — 1,118,619 — 6,095,042 Other financial assets 671,068 809,919 258,516 7,684 1,747,187 1 Lease receivables and others which are not applied to financial instruments by category are excluded. (In millions of Korean won) December 31, 2020 Financial liabilities Financial Financial liabilities Derivatives Total Trade and other payables ₩ 7,017,639 ₩ — ₩ — ₩ 7,017,639 Borrowings 7,316,298 — — 7,316,298 Other financial liabilities 132,558 2,682 127,929 263,169 Gains or losses arising from financial instruments by category for the years ended December 31, 2018, 2019 and 2020, are as follows: (In millions of Korean won) 2018 2019 2020 Financial assets at amortized cost Interest income 1,5 ₩ 93,233 ₩ 79,838 ₩ 55,742 Gain(loss) on foreign currency transaction 4 19,396 32,293 (19,244 ) Loss on foreign currency translation 4 (2,901 ) (474 ) (3,895 ) Gain(loss) on disposal 44 (43 ) 138 Loss on valuation (110,544 ) (59,947 ) (140,474 ) Financial assets at fair value through profit or loss Interest income 1 9,194 5,634 6,548 Dividend income 6 1,207 1,096 4,379 Gain on valuation 7 10,768 4,334 59,044 Gain on disposal 1,713 5,115 (329 ) Loss on foreign currency transaction 4 — — (38 ) Loss on foreign currency translation 4 — (27 ) — Financial assets at fair value through other comprehensive income Interest income 1 163,390 217,355 227,736 Dividend income 6 1,704 2,312 56 Impairment loss (2,416 ) (304 ) — Loss on disposal (13,818 ) (11,247 ) (8,152 ) Other comprehensive income for the year 2 43,811 167,152 41,997 Derivative assets used for hedging Gain on transaction 7,272 6,332 6,050 Gain(loss) on valuation 22,065 56,537 (2,707 ) Other comprehensive income(loss) for the year 2 20,078 46,806 (2,373 ) Reclassified to profit or loss from other comprehensive income for the year 2,3 (15,891 ) (39,604 ) 3,645 Financial liabilities at fair value through profit or loss Gain on disposal — 2,664 799 Gain(loss) on valuation (2,708 ) (1,936 ) 119 Derivative liabilities used for hedging Gain on transactions 20,678 — 1,141 Gain(loss) on valuation 42,195 4,949 (161,003 ) Other comprehensive income for the year 2 (2,810 ) 20,742 (81,671 ) Reclassified to profit or loss from other comprehensive income for the year 2,3 (28,388 ) (5,080 ) 107,786 Financial liabilities at amortized cost Interest expense 1,5 (296,894 ) (223,974 ) (220,945 ) Loss on repayment (15 ) — — Loss on foreign currency transaction 4 (30,956 ) (20,958 ) (10,717 ) Gain(loss) on foreign currency translation 4 (66,050 ) (75,502 ) 141,849 Total ₩ (116,643 ) ₩ 214,063 ₩ 5,481 1 BC Card, a subsidiary of the Group, recognized interest income and expense as operating revenue and expense, respectively. Related interest income recognized as operating revenue is ₩ ₩ ₩ ₩ ₩ ₩ 2 The amounts directly reflected in equity after adjustments of deferred income tax. 3 During the year, certain derivatives of the Group were settled and the related gain or loss on valuation of cash flow hedge in other comprehensive income was reclassified to profit or loss for the year. 4 BC Card Co., Ltd., a subsidiary of the Group recognized foreign currency translation/transaction gain and loss and as operating income and expenses. In relation to this, foreign currency translation gain and loss recognized as operating revenue and expense amount to ₩ ₩ ₩ ₩ ₩ ₩ 5 Interest income (interest expense) from lease receivables (lease liabilities) is excluded as it is not subject to classification of financial instruments (Note 21). 6 BC Card Co., Ltd., a subsidiary of the Group, recognized dividend income as operating revenue. Related dividend income recognized as operating revenue is ₩ ₩ ₩ 7 KT Investment Co., Ltd., etc., subsidiaries of the Group, recognized financial instruments measured at fair value through profit or loss as operating income and expenses. In relation to this, valuation gain and loss recognized as operating revenue and expense amount to ₩ 40,822 million (2018: ₩ (-) 5 million, 2019: ₩ 15,429 million), for the year ended December 31, 2020. |
Cash and Cash Equivalents
Cash and Cash Equivalents | 12 Months Ended |
Dec. 31, 2020 | |
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Cash and Cash Equivalents | 5. Cash and Cash Equivalents Restricted cash and cash equivalents as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, December 31, Description Bank deposits ₩ ₩ Deposit restricted for government project and others Cash and cash equivalents in the statement of financial position equal to cash and cash equivalents in the statement of cash flows. |
Trade and Other Receivables
Trade and Other Receivables | 12 Months Ended |
Dec. 31, 2020 | |
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Trade and Other Receivables | 6. Trade and Other Receivable s Trade and other receivables as at December 31, 2019 and 2020, are as follows: December 31, 2019 (In millions of Korean won) Total Provision Present value Carrying amount Current assets Trade receivables ₩ 3,451,107 ₩ (291,202 ) ₩ (9,510 ) ₩ 3,150,395 Other receivables 2,787,144 (78,572 ) (271 ) 2,708,301 ₩ 6,238,251 ₩ (369,774 ) ₩ (9,781 ) ₩ 5,858,696 Non-current Trade receivables ₩ 874,860 ₩ (4,117 ) ₩ (43,597 ) ₩ 827,146 Other receivables 382,468 (5,108 ) (22,708 ) 354,652 ₩ 1,257,328 ₩ (9,225 ) ₩ (66,305 ) ₩ 1,181,798 December 31, 2020 (In millions of Korean won) Total Provision Present value Carrying amount Current assets Trade receivables ₩ 3,388,099 ₩ (322,992 ) ₩ (8,977 ) ₩ 3,056,130 Other receivables 1,948,108 (101,619 ) (148 ) 1,846,341 ₩ 5,336,207 ₩ (424,611 ) ₩ (9,125 ) ₩ 4,902,471 Non-current Trade receivables ₩ 892,992 ₩ (4,323 ) ₩ (34,716 ) ₩ 853,953 Other receivables 513,926 (102,985 ) (14,125 ) 396,816 ₩ 1,406,918 ₩ (107,308 ) ₩ (48,841 ) ₩ 1,250,769 The fair values of trade and other receivables with original maturities less than one year equal to their carrying amounts because the discounting effect is immaterial. The fair value of trade and other receivables with original maturities longer than one year, which are mainly from sales of goods, is determined discounting the expected future cash flow at the weighted average interest rate. Details of changes in provision for impairment for the years ended December 31, 2019 and 2020, are as follows: 2019 2020 (In millions of Korean won) Trade Other Trade Other Beginning balance ₩ 359,924 ₩ 93,822 ₩ 295,319 ₩ 83,680 Provision 24,596 35,597 89,097 50,860 Reversal — (475 ) — (890 ) Written-off (90,513 ) (44,108 ) (60,598 ) (25,067 ) Change in consolidation scope — — 3,211 87,614 Others 1,312 (1,156 ) 286 8,407 Ending balance ₩ 295,319 ₩ 83,680 ₩ 327,315 ₩ 204,604 Provisions for impairment on trade and other receivables are recognized as operating expenses and finance costs. Details of other receivables as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, December 31, Loans ₩ 84,148 ₩ 116,082 Receivables 1 2,540,315 1,699,608 Accrued income 8,630 6,901 Refundable deposits 352,293 350,180 Loans receivable 105,961 150,527 Finance lease receivables 39,726 64,047 Others 15,560 60,416 Less: Provision for impairment (83,680 ) (204,604 ) ₩ 3,062,953 ₩ 2,243,157 1 Settlement receivables of BC Card Co., Ltd., a subsidiary of the Group, of ₩ ₩ The maximum exposure of trade and other receivables to credit risk is the carrying amount of each class of receivables mentioned above as at December 31, 2020. A portion of the trade receivables is classified as financial assets at fair value through other comprehensive income considering the trade receivables business model for managing the asset and the cash flow characteristics of the contract. |
Other Financial Assets and Liab
Other Financial Assets and Liabilities | 12 Months Ended |
Dec. 31, 2020 | |
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Other Financial Assets and Liabilities | 7. Other Financial Assets and Liabilitie s Details of other financial assets and liabilities as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 December 31, 2020 Other financial assets Financial assets at amortized cost 1 ₩ 441,804 ₩ 671,068 Financial assets at fair value through profit or loss 1,2,3 632,324 809,919 Financial assets at fair value through other comprehensive income 1,3 557,342 258,516 Derivative used for hedging 58,576 7,684 Less: Non-current (821,658 ) (544,347 ) Current ₩ 868,388 ₩ 1,202,840 Other financial liabilities Financial liabilities at amortized cost ₩ 129,945 ₩ 132,558 Financial liabilities at fair value through profit or loss 38 2,682 Derivatives used for hedging 20,096 127,929 Less: Non-current (149,136 ) (260,676 ) Current ₩ 943 ₩ 2,493 1 As at December 31, 2020, the Group’s other financial assets amounting to ₩ ₩ 2 As at December 31, 2020, MMW (Money Market Wrap) and MMT (Money Market Trust) amounting to ₩ ₩ 3 As at December 31, 2020, the Group provided investments in Korea Software Financial Cooperative amounting to ₩ ₩ Details of financial assets at fair value through profit or loss as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 December 31, 2020 Equity Instruments (Listed) ₩ 232 ₩ 46,449 Equity Instruments (Unlisted) 90,357 83,017 Debt securities 541,657 680,453 Derivatives held for trading 78 — Total 632,324 809,919 Less: non-current (219,026 ) (276,109 ) Current ₩ 413,298 ₩ 533,810 The maximum exposure of debt instruments of financial assets recognized at fair value through profit or loss to credit risk is the carrying amount as at December 31, 2020. Details of financial assets at fair value through other comprehensive income as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 December 31, 2020 Equity Instruments (Listed) ₩ 6,738 ₩ 6,216 Equity Instruments (Unlisted) 543,518 245,730 Debt securities 7,086 6,570 Total 557,342 258,516 Less: non-current (556,147 ) (258,516 ) Current ₩ 1,195 ₩ — Upon disposal of these equity investments, any balance within the accumulated other comprehensive income for these equity investments is not classified to profit or loss, but to retained earnings. Upon disposal of debt investments, remaining balance of the accumulated other comprehensive income of debt instruments is reclassified to profit or loss. In 2020, the Group disposed shares of Mastercard Inc. amounting to ₩ ₩ ₩ Derivatives used for hedg ing December 31, 2019 December 31, 2020 (In millions of Korean won) Assets Liabilities Assets Liabilities Interest rate swap 1 ₩ — ₩ 1,464 ₩ — ₩ 1,078 Currency swap 2 55,569 18,632 7,684 126,189 Currency forwards 3 3,007 — — 662 Total 58,576 20,096 7,684 127,929 Less: non-current (28,304 ) (19,177 ) (2,111 ) (126,408 ) Current ₩ 30,272 ₩ 919 ₩ 5,573 ₩ 1,521 1 The interest rate swap contract is to hedge the risk of variability in future fair value of the borrowings. 2 The currency swap contract is to hedge the risk of variability in cash flow from the borrowings. In applying the cash flow hedge accounting, the Group hedges its exposures to cash flow fluctuation until September 7, 2034. 3 The currency forward contract is to hedge the risk of variability in cash flow from transactions in foreign currencies due to changes in foreign exchange rate. The full value of a hedging derivative is classified as a non-current The valuation gains and losses on the derivatives contracts for the years ended December 31, 2018, 2019 and 2020, are as follows: (In millions of 2018 2019 2020 Type of Valuation gain Valuation loss Other comprehensive income 1 Valuation gain Valuation loss Other comprehensive income 1 Valuation gain Valuation Loss Other comprehensive income 1 Interest rate swap ₩ 192 ₩ — ₩ (488) ₩ — ₩ 45 ₩ (963) ₩ — ₩ — ₩ (567) Currency swap 58,912 2,045 22,139 72,417 15,784 87,626 — 161,661 (113,175 ) Currency forwards 7,201 — — 4,858 — 4,858 — 2,049 — Total ₩ 66,305 ₩ 2,045 ₩ 21,651 ₩ 77,275 ₩ 15,829 ₩ 91,521 ₩ — ₩ 163,710 ₩ (113,742) 1 The amounts before adjustments of deferred income tax directly reflected in equity and allocation to the non-controlling The ineffective portion recognized in profit or loss on the cash flow hedge is valuation loss of ₩ ₩ ₩ The unsettled amount of derivative instruments for the years ended December 31, 2020 and 2019, are as follows: (i) Hedging instruments (In millions of Korean won and thousands of foreign currencies) 2019 Book value of hedging Changes in fair Currency Foreign Contract Assets Liabilities USD 1,574,068 ₩ 1,788,831 ₩ 30,175 ₩ 10,692 ₩ 49,480 JPY 80,000,000 827,292 28,401 9,404 15,396 Total ₩ 2,616,123 ₩ 58,576 ₩ 20,096 ₩ 64,876 (In millions of Korean won and thousands of 2020 Book value of hedging Changes in fair Currency Foreign Contract Assets Liabilities USD 1,768,912 ₩ 2,037,568 ₩ 2,111 ₩ 100,623 ₩ (136,852 ) JPY 46,000,000 488,924 5,573 13,839 (4,065 ) SGD 284,000 245,208 — 13,467 (13,611 ) Total ₩ 2,771,700 ₩ 7,684 ₩ 127,929 ₩ (154,528 ) (ii) Hedged item (In millions of Korean won) 2019 2020 Currency Book value of hedged Changes in fair Cash flow 1 Book value of hedged Changes in fair Cash flow 1 USD ₩ 1,822,477 ₩ (45,855 ) ₩ (5,214 ) ₩ 1,924,576 ₩ 133,978 ₩ 19,641 JPY 850,776 (14,841 ) (2,395 ) 484,960 4,228 (2,569 ) SGD — — — 233,510 13,611 2,707 Total ₩ 2,673,253 ₩ (60,696 ) ₩ (7,609 ) ₩ 2,643,046 ₩ 151,817 ₩ 19,779 1 The amounts after adjustments of deferred income tax directly reflected in equity. Details of financial liabilities at fair value through profit or loss as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 December 31, 2020 Financial liabilities at fair value through profit or loss Derivative liabilities held for trading ₩ 38 ₩ 45 Conversion Rights and Redemption Rights — 2,637 Total ₩ 38 ₩ 2,682 The valuation gain and loss on financial liabilities at fair value through profit or loss for the years ended December 31, 2018, 2019 and 2020, are as follows: 2018 2019 2020 (In millions of Korean won) Valuation gain Valuation loss Valuation gain Valuation loss Valuation gain Valuation loss Derivative liabilities held for trading ₩ — ₩ 2,707 ₩ 78 ₩ 2,014 ₩ 10 ₩ 53 Conversion Rights and Redemption Rights — — — — 162 — Total ₩ — ₩ 2,707 ₩ 78 ₩ 2,014 ₩ 172 ₩ 53 |
Inventories
Inventories | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Inventories | 8. Inventories Inventories as at December 31, 2019 and 2020, are as follows: December 31, 2019 December 31, 2020 (In millions of Korean won) Acquisition Valuation 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 Cost of inventories recognized as expenses for year ended December 31, 2020, amounts to ₩ ₩ ₩ ₩ ₩ ₩ . |
Other Assets and Liabilities
Other Assets and Liabilities | 12 Months Ended |
Dec. 31, 2020 | |
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Other Assets and Liabilities | 9. Other Assets and Liabilities Other assets and liabilities as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 December 31, 2020 Other assets Advance payments ₩ 179,475 ₩ 168,302 Prepaid expenses 84,768 66,578 Contract cost 1 1,849,243 1,804,948 Contract assets 1 557,041 586,438 Others 14,243 18,747 Less: Non-current (685,488 ) (768,661 ) Current ₩ 1,999,282 ₩ 1,876,352 Other liabilities Advances received 1 ₩ 333,342 ₩ 328,491 Withholdings 99,844 105,415 Unearned revenue 1 65,228 29,593 Lease liabilities 1,211,352 1,143,640 Contract liabilities 1 365,610 384,133 Others 23,298 21,597 Less: Non-current (1,030,117 ) (909,570 ) Current ₩ 1,068,557 ₩ 1,103,299 1 The amounts include adjustments arising from adoption of IFRS 15 (Note 26). |
Assets Held for Sale
Assets Held for Sale | 12 Months Ended |
Dec. 31, 2020 | |
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Assets Held for Sale | 10. Assets Held for Sale For the year ended December 31, 2020, the Group decided to sell certain real estate and classified it as assets held for sale. Details of assets held for sale are as follows: (In millions of Korean won) Amount Land ₩ 172 Buildings and Other 1,026 Total ₩ 1,198 Consideration for sale is expected to exceed the carrying amount of net assets, and as a result, no impairment was recognized for the segment classified as held for sale. During the prior period, the Group decided to sell some real estate, in which the amount of ₩ . |
Property and Equipment
Property and Equipment | 12 Months Ended |
Dec. 31, 2020 | |
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Property and Equipment | 11. Property and Equipmen t Changes in property and equipment for the years ended December 31, 2019 and 2020, are as follows: 2019 (In millions of Korean won) Land Buildings Machinery Others Construction- in-progress Total Acquisition cost ₩ 1,281,319 ₩ 3,873,074 ₩ 36,327,007 ₩ 1,981,646 ₩ 826,583 ₩ 44,289,629 Less: Accumulated depreciation (including accumulated impairment loss and others) (132 ) (1,865,389 ) (27,851,991 ) (1,503,265 ) (595 ) (31,221,372 ) Beginning, net 1,281,187 2,007,685 8,475,016 478,381 825,988 13,068,257 Changes in accounting policy 1 — (149 ) (12,947 ) (196,932 ) — (210,028 ) Acquisition and capital expenditure 338 4,523 205,359 64,072 3,419,136 3,693,428 Disposal and termination (1,352 ) (4,213 ) (76,457 ) (4,109 ) (1,362 ) (87,493 ) Depreciation — (134,350 ) (2,278,286 ) (89,940 ) — (2,502,576 ) Impairment — (32 ) (41,450 ) (1,751 ) (27 ) (43,260 ) Transfer in (out) 126,066 270,980 2,742,671 16,218 (3,217,044 ) (61,109 ) Transfer to investment properties (33,254 ) (8,081 ) — — — (41,335 ) Transfer to assets held-for-sale (89,330 ) (1,121 ) — — — (90,451 ) Others (21,474 ) 26,822 79,345 1,596 (26,423 ) 59,866 Ending, net ₩ 1,262,181 ₩ 2,162,064 ₩ 9,093,251 ₩ 267,535 ₩ 1,000,268 ₩ 13,785,299 Acquisition cost ₩ 1,262,313 ₩ 4,125,229 ₩ 37,654,635 ₩ 1,612,108 ₩ 1,001,171 ₩ 45,655,456 Less: Accumulated depreciation (including accumulated impairment loss and others) (132 ) (1,963,165 ) (28,561,384 ) (1,344,573 ) (903 ) (31,870,157 ) 1 With the application of IFRS 16, property and equipment were reclassified to right-of-use 2020 (In millions of Korean won) Land Buildings Machinery Others Construction- in-progress Total Acquisition cost ₩ 1,262,313 ₩ 4,125,229 ₩ 37,654,635 ₩ 1,612,108 ₩ 1,001,171 ₩ 45,655,456 Less: Accumulated depreciation (including accumulated impairment loss and others) (132 ) (1,963,165 ) (28,561,384 ) (1,344,573 ) (903 ) (31,870,157 ) Beginning, net 1,262,181 2,162,064 9,093,251 267,535 1,000,268 13,785,299 Acquisition and capital expenditure 25,156 7,249 112,085 47,669 2,959,690 3,151,849 Disposal and termination (1,756 ) (3,367 ) (69,401 ) (3,385 ) (1,027 ) (78,936 ) Depreciation — (135,646 ) (2,343,965 ) (91,164 ) — (2,570,775 ) Impairment — (36 ) (35,271 ) (44,468 ) — (79,775 ) Transfer in (out) 53,238 283,937 2,489,138 28,024 (2,899,197 ) (44,860 ) Transfer to investment properties 6,792 (8,848 ) — — — (2,056 ) Changes in scope of consolidation 56 494 225 43 — 818 Others (11,040 ) 2,175 68,921 1,398 (16,899 ) 44,555 Ending, net ₩ 1,334,627 ₩ 2,308,022 ₩ 9,314,983 ₩ 205,652 ₩ 1,042,835 ₩ 14,206,119 Acquisition cost ₩ 1,334,759 ₩ 4,402,691 ₩ 39,182,265 ₩ 1,619,822 ₩ 1,046,795 ₩ 47,586,332 Less: Accumulated depreciation (including accumulated impairment loss and others) (132 ) (2,094,669 ) (29,867,282 ) (1,414,170 ) (3,960 ) (33,380,213 ) Details of property and equipment provided as collateral as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 Carrying Secured Related line Related Secured party Land and Buildings ₩ 17,097 ₩ 18,705 Borrowings ₩ 4,347 Industrial Bank , K Bank, Inc. Others ₩ 45,851 ₩ 41,681 Borrowings ₩ 3,473 Shinhan (In millions of Korean won) December 31, 2020 Carrying Secured Related line Related Secured party Land and Buildings ₩ 11,644 ₩ 15,502 Borrowings ₩ 3,072 Industrial Korea Bank ₩ 4,142 ₩ 249 Deposits ₩ 249 K Bank, Inc. The borrowing costs capitalized for qualifying assets amount to ₩ ₩ |
Investment Properties
Investment Properties | 12 Months Ended |
Dec. 31, 2020 | |
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Investment Properties | 12. Investment Propertie s Changes in investment properties for the years ended December 31, 2019 and 2020, are as follows: (In millions of Korean won) 2019 Land Buildings Construction- in-progress Total Acquisition cost ₩ 350,417 ₩ 1,168,379 ₩ 121 ₩ 1,518,917 Less: Accumulated depreciation (1,569 ) (426,264 ) — (427,833 ) Beginning, net ₩ 348,848 ₩ 742,115 ₩ 121 ₩ 1,091,084 Changes in accounting policy 1 — 46,666 — 46,666 Acquisition 148,511 103,774 1,781 254,066 Disposal and termination (285 ) (1,408 ) — (1,693 ) Depreciation — (65,178 ) — (65,178 ) Transfer from property and equipment 33,254 8,081 — 41,335 Transfer and others 23,268 (2,118 ) — 21,150 Ending, net ₩ 553,596 ₩ 831,932 ₩ 1,902 ₩ 1,387,430 Acquisition cost ₩ 555,164 ₩ 1,323,518 ₩ 1,902 ₩ 1,880,584 Less: Accumulated depreciation (including accumulated impairment loss and others) (1,568 ) (491,586 ) — (493,154 ) 1 With the application of IFRS 16, right-of-use-assets (In millions of Korean won) 2020 Land Buildings Construction- in-progress Total Acquisition cost ₩ 555,164 ₩ 1,323,518 ₩ 1,902 ₩ 1,880,584 Less: Accumulated depreciation (1,568 ) (491,586 ) — (493,154 ) Beginning, net ₩ 553,596 ₩ 831,932 ₩ 1,902 ₩ 1,387,430 Acquisition 11,723 7,096 34,243 53,062 Disposal and termination (1,536 ) (243 ) — (1,779 ) Depreciation — (64,531 ) — (64,531 ) Transfer from property and equipment (6,792 ) 8,848 — 2,056 Transfer and others (18,656 ) 469 10,402 (7,785 ) Ending, net ₩ 538,335 ₩ 783,571 ₩ 46,547 ₩ 1,368,453 Acquisition cost ₩ 539,903 ₩ 1,341,326 ₩ 46,547 ₩ 1,927,776 Less: Accumulated depreciation (including accumulated impairment loss and others) (1,568 ) (557,755 ) — (559,323 ) The fair value of investment properties is ₩ ₩ Rental income from investment properties is ₩ ₩ As at December 31, 2020, the Group (Lessor) has entered into a non-cancellable ₩ ₩ ₩ ₩ Details of investment properties provided as collateral as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 Carrying Secured Related Related Land and Buildings ₩ 854,874 ₩ 62,896 Deposits ₩ 56,831 Land and Buildings ₩ 1,915 ₩ 3,044 Borrowings ₩ 1,903 (In millions of Korean won) December 31, 2020 Carrying Secured Related Related Land and Buildings ₩ 790,414 ₩ 62,968 Deposits ₩ 56,247 Land and Buildings ₩ 2,861 ₩ 3,434 Borrowings ₩ 2,928 |
Intangible Assets
Intangible Assets | 12 Months Ended |
Dec. 31, 2020 | |
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Intangible Assets | 13. Intangible Asset s Changes in intangible assets for the years ended December 31, 2019 and 2020, are as follows: 2019 (In millions of Korean won) Goodwill Development Software Frequency usage rights Others Total Acquisition cost 542,074 1,680,372 947,312 3,641,231 1,253,281 8,064,270 Less: Accumulated amortization (including accumulated impairment loss and others) (306,016 ) (1,345,262 ) (781,368 ) (1,484,731 ) (739,769 ) (4,657,146 ) Beginning, net ₩ 236,058 ₩ 335,110 ₩ 65,944 ₩ 2,156,500 ₩ 513,512 ₩ 3,407,124 Changes in accounting policy 1 — — — — (26,207 ) (26,207 ) Acquisition and capital expenditure — 47,903 30,965 — 99,826 178,694 Disposal and termination — (3,019 ) (1,267 ) (284 ) (11,109 ) (15,679 ) Amortization — (115,839 ) (68,222 ) (399,382 ) (77,262 ) (660,705 ) Impairment (605 ) (1,333 ) (1,807 ) (3,035 ) (55,118 ) (61,898 ) Others 117 9,812 11,768 142 (9,131 ) 12,708 Ending, net ₩ 235,570 ₩ 272,634 ₩ 137,381 ₩ 1,753,941 ₩ 434,511 ₩ 2,834,037 Acquisition cost 541,596 1,661,372 978,139 3,622,327 1,193,048 7,996,482 Less: Accumulated amortization (including accumulated impairment loss and others) (306,026 ) (1,388,738 ) (840,758 ) (1,868,386 ) (758,537 ) (5,162,445 ) 1 With the application of IFRS 16, intangible assets were reclassified to right-of-use 2020 (In millions of Korean won) Goodwill Development Software Frequency usage rights Others 1 Total Acquisition cost 541,596 1,661,372 978,139 3,622,327 1,193,048 7,996,482 Less: Accumulated amortization (including accumulated impairment loss and others) (306,026 ) (1,388,738 ) (840,758 ) (1,868,386 ) (758,537 ) (5,162,445 ) Beginning, net ₩ 235,570 ₩ 272,634 ₩ 137,381 ₩ 1,753,941 ₩ 434,511 ₩ 2,834,037 Acquisition and capital expenditure — 26,990 37,077 — 101,563 165,630 Disposal and termination — (1,849 ) (105 ) — (11,866 ) (13,820 ) Amortization — (104,938 ) (54,191 ) (399,348 ) (69,677 ) (628,154 ) Impairment — — (1,776 ) (193,194 ) (16,667 ) (211,637 ) Changes in scope of consolidation — 575 77 — 3,690 4,342 Others (5,485 ) 87,587 27,537 (736 ) (98,043 ) 10,860 Ending, net ₩ 230,085 ₩ 280,999 ₩ 146,000 ₩ 1,160,663 ₩ 343,511 ₩ 2,161,258 Acquisition cost 536,093 1,767,422 1,053,980 3,373,095 1,167,735 7,898,325 Less: Accumulated amortization (including accumulated impairment loss and others) (306,008 ) (1,486,423 ) (907,980 ) (2,212,432 ) (824,224 ) (5,737,067 ) 1 The carrying amount of membership rights and others, excluding goodwill, with indefinite useful life not subject to amortization is ₩ ₩ Due to the change in its business environment, the Group expects that it is no longer probable that its 28GHz frequency usage rights will be in the condition necessary for it to be capable of operating in the manner intended by management. As a result, the ₩ ₩ In relation to KT Skylife TV Co., Ltd., the Group recognized impairment loss of ₩ Goodwill is allocated to the Group’s cash-generating unit which is identified by operating segments. As at December 31, 2020, goodwill allocated to each cash-generating unit is as follows: (In millions of Korean won) Operating Segment Cash generating Unit Amount ICT 6 Mobile services 1 ₩ 65,057 Finance BC Card Co., Ltd. 2 41,234 Others GENIE Music Corporation (KT Music Corporation) 3 50,214 PlayD Co., Ltd. (N SEARCH MARKETING Co., Ltd.) 4 42,745 KT Telecop Co., Ltd. 5 15,418 KT MOS Bukbu Co., Ltd and others 15,417 Total ₩ 230,085 1 The recoverable amounts of mobile services business are calculated based on value-in 2 The recoverable amounts of BC Card Co., Ltd. are calculated based on value-in 3 The recoverable amount of GENIE Music Corporation (KT Music Corporation) is calculated based on fair value less cost to sell. 4 The recoverable amount of PlayD Co., Ltd. (N SEARCH MARKETING Co., Ltd.) is calculated based on fair value less cost to sell. 5 The recoverable amounts of KT Telecop Co., Ltd. are calculated based on value-in 6 The Group performed its impairment assessment for long-lived assets attributed to the Information and Communication Technology (“ICT”) reporting segment, which includes the Cash-Generating Units of Mobile, Fixed line, and Corporate Services (the “CGUs”). The Group compared the carrying value of each CGU to the estimated recoverable amount. The recoverable amounts of ICT reporting segment are calculated based on value-in |
Investments in Associates and J
Investments in Associates and Joint Ventures | 12 Months Ended |
Dec. 31, 2020 | |
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Investments in Associates and Joint Ventures | 14. Investments in Associates and Joint Venture s Details of associates as at December 31, 2019 and 2020, are as follows: Percentage of ownership (%) Location Closing month 2019 2020 Korea Information & Technology Fund 33.3 % 33.3 % Korea December 31, 2019, KT-IBKC 1 50.0 % 50.0 % Korea December 31, 2019, KT-CKP 49.7 % — Korea December 31, 2019, K Bank Inc. 10.0 % 34.0 % Korea December 31, 2019, Hyundai Robotics Co., Ltd. 2 — 10.0 % Korea December 31, 2019, 1 At the end of the reporting period, although the Group owns 50% ownership, the equity method of accounting has been applied as the Group, which is a limited partner of the investment fund, because the Group cannot participate in determining the operating and financial policies. 2 At the end of the reporting period, although the Group has less than 20% ownership in ordinary share, this entity is included in investments in associates as the Group has a significant influence in determining the operating and financial policies. Changes in investments in associates and joint ventures for the years ended December 31, 2019 and 2020, are as follows: 2019 (In millions of Korean won) Beginning Acquisition (Disposal) Share of net profit 1 Others Ending Korea Information & Technology Fund ₩ 148,255 ₩ — ₩ 17,956 ₩ (2,236 ) ₩ 163,975 KT-SB 4,470 (4,470 ) — — — KT-IBKC 9,961 3,750 389 — 14,100 KT-CKP 281 (174 ) 27 — 134 K Bank Inc. 52,655 21,782 (28,865 ) (414 ) 45,158 Others 1 56,785 (7,867 ) 7,241 (11,866 ) 44,293 ₩ 272,407 ₩ 13,021 ₩ (3,252 ) ₩ (14,516 ) ₩ 267,660 2020 (In millions of Korean won) Beginning Acquisition (Disposal) Share of net profit 1 Others Ending Korea Information & Technology Fund ₩ 163,975 ₩ — ₩ 12,205 ₩ (6,025 ) ₩ 170,155 KT-IBKC 14,100 — 2,090 — 16,190 KT-CKP 134 (134 ) — — — K Bank Inc. 45,158 195,011 (30,209 ) (1,688 ) 208,272 Hyundai Robotics Co., Ltd. — 50,000 (64 ) 1,000 50,936 Others 1 44,293 28,400 34,298 5,337 112,328 ₩ 267,660 ₩ 273,277 ₩ 18,320 ₩ (1,376 ) ₩ 557,881 1 KT investment Co., Ltd., a subsidiary of the Group, recognized its share in net profit from associates and joint ventures as operating revenue and expense. These include its share in net gain from associates and joint ventures of ₩ ₩ ₩ Summarized financial information of associates and joint ventures as at and for the years ended December 31, 2019 and 2020, is as follows: (In millions of Korean won) December 31, 2019 Current Non-current assets Current Non-current liabilities Korea Information & Technology Fund ₩ 113,233 ₩ 378,691 ₩ — ₩ — KT-IBKC 28,200 — — — KT-CKP 3 267 — — K Bank Inc. 2,480,065 78,566 2,350,375 3,784 (In millions of Korean won) December 31, 2020 Current Non-current assets Current Non-current liabilities Korea Information & Technology Fund ₩ 107,652 ₩ 402,812 ₩ — ₩ — KT-IBKC Future Investment Fund 1 32,379 — — — K Bank Inc. 4,255,620 74,193 3,752,838 88,155 Hyundai Robotics Co., Ltd. 315,886 125,619 80,615 59,324 (In millions of Korean won) 2019 Operating Profit (loss) Other Total Dividends Korea Information & Technology Fund ₩ 70,577 ₩ 53,867 ₩ 6,132 ₩ 59,999 ₩ 4,280 KT-IBKC Future Investment Fund 1 1,694 779 — 779 — KT-CKP New Media Investment Fund 56 55 — 55 — K Bank Inc. 92,720 (100,773 ) (23 ) (100,796 ) — (In millions of Korean won) 2020 Operating Profit (loss) Other Total Dividends Korea Information & Technology Fund ₩ 54,473 ₩ 36,615 ₩ 9,647 ₩ 46,262 ₩ 9,241 KT-IBKC 6,551 4,179 — 4,179 — K Bank Inc. 80,301 (105,374 ) (1,126 ) (106,500 ) — Hyundai Robotics Co., Ltd. 195,311 (642 ) 11,573 10,931 — Details of a reconciliation of the summarized financial information to the carrying amount of interests in the associates and joint ventures as at and for the years end December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 Net assets (a) Percentage of Share in (c)=(a)x(b) Intercompany Book (c)+(d) Korea Information & Technology Fund ₩ 491,924 33.30 % ₩ 163,975 ₩ — ₩ 163,975 KT-IBKC Future Investment Fund 1 28,200 50.00 % 14,100 — 14,100 KT-CKP 270 49.70 % 134 — 134 K Bank Inc. 1 204,472 10.00 % 45,158 — 45,158 1 12.1% of non-voting (In millions of Korean won) December 31, 2020 Net assets (a) Percentage of Share in net (c)=(a)x(b) Intercompany Book amount (c)+(d) Korea Information & Technology Fund ₩ 510,464 33.30 % ₩ 170,155 ₩ — ₩ 170,155 KT-IBKC 32,379 50.00 % 16,190 — 16,190 K Bank Inc. 1 488,819 34.00 % 166,198 42,074 208,272 Hyundai Robotics Co., Ltd. 301,566 10.00 % 30,157 20,779 50,936 1 12.1% of non-voting Due to discontinuance of equity method of accounting, the Group has not recognized loss from associates and joint ventures of ₩ ₩ ₩ ₩ |
Trade and Other Payables
Trade and Other Payables | 12 Months Ended |
Dec. 31, 2020 | |
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Trade and Other Payables | 15. Trade and Other Payable s Details of trade and other payables as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, December 31, Current liabilities Trade payables ₩ 1,304,795 ₩ 1,239,717 Other payables 6,292,683 4,970,382 Total ₩ 7,597,478 ₩ 6,210,099 Non-current Trade payables ₩ 1,733 ₩ 1,528 Other payables 1,080,487 806,012 Total ₩ 1,082,220 ₩ 807,540 Details of other payables as at December 31, 2019 and 2020 are as follows: (In millions of Korean won) December 31, December 31, Non-trade 1 ₩ 5,275,224 ₩ 3,841,227 Accrued expenses 987,624 933,978 Operating deposits 910,045 803,904 Others 200,277 197,285 Less: non-current (1,080,487 ) (806,012 ) Current ₩ 6,292,683 ₩ 4,970,382 1 Settlement payables of BC Card Co., Ltd., a subsidiary of the Group, of ₩ ₩ |
Borrowings
Borrowings | 12 Months Ended |
Dec. 31, 2020 | |
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Borrowings | 16. Borrowing s Details of borrowings as at December 31, 2019 and 2020, are as follows: Debentures (In millions of Korean won and thousands of foreign currencies) December 31, 2019 December 31, 2020 Type Maturity Annual interest Foreign Korean Foreign Korean MTNP notes 1 Sept. 7, 2034 6.50% USD 100,000 ₩ 115,780 USD 100,000 ₩ 108,800 MTNP notes July 18, 2026 2.50% USD 400,000 463,120 USD 400,000 435,200 MTNP notes Aug. 7, 2022 2.63% USD 400,000 463,120 USD 400,000 435,200 FR notes Aug. 20, 2020 — USD 200,000 231,560 — — FR notes 2 Aug. 20, 2023 LIBOR(3M)+0.900% USD 100,000 115,780 USD 100,000 108,800 MTNP notes July 6, 2020 — JPY 4,000,000 42,539 — — MTNP notes July 6, 2021 0.38% JPY 16,000,000 170,155 JPY 16,000,000 168,682 MTNP notes Nov. 13, 2020 — JPY 30,000,000 319,041 — — MTNP notes July 19, 2022 0.22% JPY 29,600,000 314,787 JPY 29,600,000 312,061 MTNP notes July 19, 2024 0.33% JPY 400,000 4,254 JPY 400,000 4,217 FR notes 2 Nov. 1, 2024 LIBOR(3M)+0.980% USD 350,000 405,230 USD 350,000 380,800 FR notes 2 June 19, 2023 SOR(6M)+0.500% — — SGD 284,000 233,510 MTNP notes Sept. 1, 2025 1.00% — — USD 400,000 435,200 The 180-2rd Apr. 26, 2021 4.71% — 380,000 — 380,000 The 181-3rd Aug. 26, 2021 4.09% — 250,000 — 250,000 The 182-2nd Oct. 28, 2021 4.31% — 100,000 — 100,000 The 183-2nd Dec. 22, 2021 4.09% — 90,000 — 90,000 The 183-3rd Dec. 22, 2031 4.27% — 160,000 — 160,000 The 184-2nd Apr. 10, 2023 2.95% — 190,000 — 190,000 The 184-3rd Apr. 10, 2033 3.17% — 100,000 — 100,000 The 185-2nd Sept. 16, 2020 — — 300,000 — — The 186-3rd June 26, 2024 3.42% — 110,000 — 110,000 The 186-4th June 26, 2024 3.70% — 100,000 — 100,000 The 187-3rd Sept. 2, 2024 3.31% — 170,000 — 170,000 The 187-4th Sept. 2, 2034 3.55% — 100,000 — 100,000 The 188-1st Jan. 29, 2020 — — 160,000 — — The 188-2nd Jan. 29, 2025 2.45% — 240,000 — 240,000 The 188-3rd Jan. 29, 2035 2.71% — 50,000 — 50,000 The 189-2nd Jan. 28, 2021 1.95% — 130,000 — 130,000 The 189-3rd Jan. 28, 2026 2.20% — 100,000 — 100,000 The 189-4th Jan. 28, 2036 2.35% — 70,000 — 70,000 The 190-1st Jan. 29, 2021 2.55% — 110,000 — 110,000 The 190-2nd Jan. 30, 2023 2.75% — 150,000 — 150,000 The 190-3rd Jan. 30, 2028 2.95% — 170,000 — 170,000 The 190-4th Jan. 30, 2038 2.93% — 70,000 — 70,000 The 191-1st Jan. 14, 2022 2.05% — 220,000 — 220,000 The 191-2nd Jan. 15, 2024 2.09% — 80,000 — 80,000 The 191-3rd Jan. 15, 2029 2.16% — 110,000 — 110,000 The 191-4th Jan. 14, 2039 2.21% — 90,000 — 90,000 The 192-1st Oct. 11, 2022 1.55% — 340,000 — 340,000 The 192-2nd Oct. 11, 2024 1.58% — 100,000 — 100,000 The 192-3rd Oct. 11, 2029 1.62% — 50,000 — 50,000 The 192-4th Oct. 11, 2039 1.67% — 110,000 — 110,000 The 193-1st June 16, 2023 1.17% — — — 150,000 The 193-2nd June 17, 2025 1.43% — — — 70,000 The 193-3rd June 17, 2030 1.61% — — — 20,000 The 193-4th June 15, 2040 1.71% — — — 60,000 The 148th Won-denominated June 23, 2023 1.51% — — — 100,000 Subtotal 7,045,366 6,962,470 Less: Current portion (1,052,032 ) (1,228,283 ) Discount on bonds (20,780 ) (19,847 ) Total ₩ 5,972,554 ₩ 5,714,340 1 As at December 31, 2020, the Controlling Company has outstanding notes in the amount of USD 100 million with fixed interest rates under Medium Term Note Program (“MTNP”) registered in the Singapore Stock Exchange, which allowed issuance of notes of up to USD 2,000 million. However, the MTN Program has been suspended since 2007. 2 Libor (3M) and SOR (6M) are approximately 0.238% and 0.185%, respectively as at December 31, 2020. Convertible bonds (In millions of Korean won and thousands of foreign currencies) December 31, 2019 Type Issuance date Maturity Annual interest rate December 31, December 31, The 1st CB(Private) 1,2 Jun. 5, 2020 Jun. 5, 2025 0.00 % ₩ — ₩ 8,000 Redemption premium — 2,267 Bond discount issuance — (4,644 ) Subtotal ₩ — ₩ 5,623 Current portion ₩ — ₩ — Total ₩ — ₩ 5,623 1 Common shares of Storywiz are subject to conversion (appraisal period: June 5, 2021~ May 4, 2025). 2 Nominal interest rate and maturity yield is approximately 0% and 5% and will be settled on maturity Short-term borrowings (In millions of Korean won) December 31, December 31, Type Financial institution Annual interest rates Operational NongHyup Bank 1.740% ~ 2.360% ₩ 15,000 ₩ 40,189 Shinhan Bank 2.460% ~ 2.960% 57,500 22,500 Shinhan Bank CD91+1.431% — 10,000 Woori Bank 3.57% — 1,900 Korea Development Bank 3.34% 10,000 10,000 SooHyup Bank — 1,000 — Industrial Bank of Korea 1.74% — 200 Hana Bank 4.20% — 11,000 Total ₩ 83,500 ₩ 95,789 Long-term borrowings (In millions of Korean won and thousands of foreign currencies) December 31, 2019 December 31, 2020 Financial institution Type Annual interest rates Foreign currency Korean won Foreign currency Korean won Export-Import Bank of Korea Inter-Korean Cooperation Fund 1 1.50% — ₩ 3,454 — ₩ 2,961 Industrial Bank of Korea General loans 2.98% — 6,000 — 6,000 Shinhan Bank General loans 1.94% — 5,000 — 5,000 Facility loans 2 LIBOR(3M)+1.340% USD 25,918 30,008 USD 25,918 28,199 General loans 2 LIBOR(3M)+1.650% USD 3,000 3,473 USD 8,910 9,694 General loans 2 LIBOR(3M)+2.130% — — USD 25,000 27,200 CA-CIB Long-term CP 1.26% — — — 100,000 NongHyup Bank Facility loans 2.00% — 79 — 54 Korea Development Bank General loans 3.02% — 10,000 — 10,000 General loans 3.31% — 30,000 — 30,000 Others Kookmin Bank and other 2 LIBOR(3M)+1.850% USD 87,940 101,816 USD 48,855 53,155 — — 950 — — Subtotal ₩ 190,780 ₩ 272,263 Less: Current portion ₩ (50,192) ₩ (94,042) Total ₩ 140,588 ₩ 178,221 1 The above Inter-Korean Cooperation Fund is repayable in installments over 13 years after a seven-year grace period. 2 LIBOR(3M) is approximately 0.238% as at December 31, 2020. Repayment schedule of the Group’s borrowings including the portion of current liabilities as at December 31, 2020 is as follows: (In millions of Korean won) Debentures Borrowings Total In local In foreign Sub- total In local In foreign Sub- total Jan 1, 2021 ~ Dec 31, 2021 ₩ 1,060,000 ₩ 168,682 ₩ 1,228,682 ₩ 147,307 ₩ 42,524 ₩ 189,831 ₩ 1,418,513 Jan 1, 2022 ~ Dec 31, 2022 560,000 747,261 1,307,261 518 38,830 39,348 1,346,609 Jan 1, 2023 ~ Dec 31, 2023 590,000 342,310 932,310 100,500 36,894 137,394 1,069,704 Jan 1, 2024 ~ Dec 31, 2024 460,000 385,017 845,017 493 — 493 845,510 After Jan. 1, 2025 1,678,000 979,200 2,657,200 986 — 986 2,658,186 ₩ 4,348,000 ₩ 2,622,470 ₩ 6,970,470 ₩ 249,804 ₩ 118,248 ₩ 368,052 ₩ 7,338,522 |
Provisions
Provisions | 12 Months Ended |
Dec. 31, 2020 | |
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Provisions | 17. Provision s Changes in provisions for the years ended December 31, 2019 and 2020, are as follows: 2019 (In millions of Korean won) Litigation Restoration cost Others Total Beginning balance ₩ 58,760 ₩ 118,828 ₩ 104,288 ₩ 281,876 Increase (Transfer) 42,684 6,591 17,328 66,603 Usage (35,640 ) (5,394 ) (15,851 ) (56,885 ) Reversal (1,563 ) (6,736 ) (29,133 ) (37,432 ) Ending balance ₩ 64,241 ₩ 113,289 ₩ 76,632 ₩ 254,162 Current ₩ 64,241 ₩ 37,906 ₩ 73,465 ₩ 175,612 Non-current — 75,383 3,167 78,550 2020 (In millions of Korean won) Litigation Restoration cost Others Total Beginning balance ₩ 64,241 ₩ 113,289 ₩ 76,632 ₩ 254,162 Increase (Transfer) 17,064 (1,933 ) 17,873 33,004 Usage (3,948 ) (2,990 ) (2,266 ) (9,204 ) Reversal (857 ) (3,023 ) (23,212 ) (27,092 ) Changes in scope of consolidation — 424 898 1,322 Ending balance ₩ 76,500 ₩ 105,767 ₩ 69,925 ₩ 252,192 Current ₩ 76,500 ₩ 22,343 ₩ 67,147 ₩ 165,990 Non-current — 83,424 2,778 86,202 |
Net Defined Benefit Liabilities
Net Defined Benefit Liabilities | 12 Months Ended |
Dec. 31, 2020 | |
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Net Defined Benefit Liabilities | 18. Net Defined Benefit Liabilitie s The amounts recognized in the statements of financial position are determined as follows: (In millions of Korean won) December 31, 2019 December 31, 2020 Present value of defined benefit obligations ₩ 2,427,351 ₩ 2,556,712 Fair value of plan assets (2,069,710 ) (2,189,375 ) Liabilities ₩ 365,663 ₩ 378,087 Assets in the statement of financial position ₩ 8,022 ₩ 10,750 Changes in the defined benefit obligations for the years ended December 31, 2019 and 2020, are as follows: (In millions of Korean won) 2019 2020 Beginning ₩ 2,201,876 ₩ 2,427,351 Current service cost 243,598 248,047 Interest expense 47,403 45,083 Benefit paid (100,663 ) (258,866 ) Changes due to settlements of plan 910 1,075 Remeasurements: Actuarial gains and losses arising from changes in demographic assumptions 39 5,191 Actuarial gains and losses arising from changes in financial assumptions 11,773 17,077 Actuarial gains and losses arising from experience adjustments 19,465 57,703 Changes in scope of consolidation 2,950 14,051 Ending ₩ 2,427,351 ₩ 2,556,712 Changes in the fair value of plan assets for the years ended December 31, 2019 and 2020, are as follows: (In millions of Korean won) 2019 2020 Beginning ₩ 1,643,046 ₩ 2,069,710 Interest income 35,386 38,590 Remeasurements: Return on plan assets (excluding amounts included in interest income) (2,537 ) 2,589 Benefits paid (87,119 ) (213,953 ) Employer contributions 476,916 284,243 Changes in scope of consolidation 4,018 8,196 Ending ₩ 2,069,710 ₩ 2,189,375 Amounts recognized in the ‘Operating expenses’ of the consolidated statements of operations for the years ended December 31, 2018, 2019 and 2020, are as follows: (In millions of Korean won) 2018 2019 2020 Current service cost ₩ 225,667 ₩ 243,598 ₩ 248,047 Net Interest cost 10,458 12,017 6,494 Past service cost 9,801 910 1,075 Transfer out (13,881 ) (16,215 ) (16,514 ) Total expenses ₩ 232,045 ₩ 240,310 ₩ 239,102 Principal actuarial assumptions used are as follows: December 31, December 31, December 31, Discount rate 2.32 % 1.97 % 1.93 % Future salary increase 5.08 % 4.92 % 4.88 % The sensitivity of the defined benefit obligations as at December 31, 2020, to changes in the principal assumptions is: (In percentage, in millions of Korean won) Effect on defined benefit obligation Changes in Increase in Decrease in Discount rate 0.5% point ₩ ₩ 93,254 Salary growth rate 0.5% point 85,344 (79,970 ) A decrease in corporate bond yields will increase plan liabilities, although this will be partially offset by an increase in the value of the plans’ bond holdings. The above sensitivity analyses are based on an assumption while holding all other assumptions constant. In practice, this is unlikely to occur, and changes in some of the assumptions may be correlated. The sensitivity of the defined benefit obligation to changes in principal actuarial assumptions is calculated using the projected unit credit method, the same method applied when calculating the defined benefit obligations recognized on the statement of financial position. The Group actively monitors how the duration and the expected yield of the investments match the expected cash outflows arising from the pension obligations. Expected contributions to post-employment benefit plans for the year ending December 31, 2021, are ₩ The expected maturity analysis of undiscounted pension benefits as at December 31, 2020, is as follows: (In millions of Korean won) Less than 1 year Between Between 2-5 Over 5 years Total Pension benefits ₩ 232,550 ₩ 271,366 ₩ 794,840 ₩ 2,284,517 ₩ 3,583,273 The weighted average duration of the defined benefit obligations is 6.7 years. |
Defined Contribution Plan
Defined Contribution Plan | 12 Months Ended |
Dec. 31, 2020 | |
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Defined Contribution Plan | 19. Defined Contribution Plan Recognized expense related to the defined contribution plan for the year ended December 31, 2020, is ₩ ₩ ₩ |
Commitments and Contingencies
Commitments and Contingencies | 12 Months Ended |
Dec. 31, 2020 | |
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Commitments and Contingencies | 20. Commitments and Contingencie s As at December 31, 2020, major commitments with local financial institutions are as follows: (In millions of Korean won and Financial institution Currency Limit Used Bank overdraft Kookmin Bank and others KRW 1,502,000 — Inter-Korean Cooperation Fund Export-Import Bank of Korea KRW 37,700 2,714 Insurance for Economic Cooperation project Export-Import Bank of Korea KRW 3,240 1,732 Collateralized loan on electronic accounts receivable-trade Kookmin Bank and others KRW 522,849 23,475 Plus electronic notes payable Industrial Bank of Korea KRW 50,000 331 Loans for working capital Korea Development Bank and others KRW 243,593 152,243 Facility loans Shinhan Bank and others KRW 100,123 55 Kookmin Bank and others USD 212,000 48,855 Derivatives transaction limit Korea Development Bank KRW 100,000 22,027 Woori Bank and others USD 69,054 44,616 Total KRW 2,559,505 202,577 USD 281,054 93,471 As at December 31, 2020, guarantees received from financial institutions are as follows: (In millions of Korean won and Financial institution Currency Limit Performance guarantee Seoul Guarantee Insurance and others KRW 208,386 Performance guarantee Korea Development Bank and others USD 8,569 Guarantee for import letters of credit Industrial Bank of Korea and others USD 5,000 Guarantee for payment in won currency Shinhan Bank and others KRW 70,962 Refund guarantee for advances received Korea Development Bank USD 8,536 Guarantee for payment in foreign currency KEB Hana Bank and others USD 40,840 Comprehensive credit line KEB Hana Bank and others KRW 41,100 Comprehensive credit line KEB Hana Bank and others USD 8,700 Bid guarantee KEB Hana Bank USD 400 Bid guarantee Korea Software Financial KRW 80,246 Performance guarantee /warranty guarantee KRW 393,019 Guarantee for advance payments/others KRW 388,656 Warranty guarantee Seoul Guarantee Insurance KRW 1,305 Performance guarantee KRW 9,690 Guarantees for licensing KRW 7,748 Guarantees for depositions KRW 3,792 Merchant business guarantee insurance KRW 237 Total KRW 1,205,141 USD 72,045 As at December 31, 2020, guarantees provided by the Group to a third party, are as follows: (In millions of Korean won) Subject to payment Creditor Limit Used Period KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) 1 Gasan Solar Power Plant Inc. Shinhan Bank 4,700 1,371 Jan. 08, 2025 KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) 1 SPP Inc. Suhyup Bank 3,250 932 Feb. 16, 2024 KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) 1 Korea Cell Inc. Suhyup Bank 3,250 880 Feb. 16, 2024 KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) 1 San-Ya Association Corporation Suhyup Bank 3,250 888 Feb. 16, 2024 KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) 1 Ciocanesti Korea Co., Ltd. NH Investment & 7,600 7,600 Jun. 8, 2017 KT Hitel Co., Ltd. Shinhan Bank Cash payers 700 — Apr. 17, 2020 ~ Apr. 16, 2021 Nasmedia Co., Ltd. Stockholders Association Members Korea Securities 5,654 2,735 — 1 According to the above payment guarantee, KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.), a subsidiary of the Group, will have an obligation of repayment if the principal borrower does not repay the borrowing. The Controlling Company is jointly and severally obligated with KT Sat Co., Ltd. to pay KT Sat Co., Ltd.’s liabilities incurred prior to spin-off. ₩ For the years ended December 31, 2019 and 2020, the Group made agreements with the Securitization Specialty Companies (2020: First 5G 49 th th rd th As at December 31, 2020, the Group is a defendant in 195 lawsuits with the total claimed amount of ₩ ₩ ₩ ₩ According to the financial and other covenants included in certain debentures and borrowings, the Group is required to maintain certain financial ratios such as debt-to-equity As at December 31, 2020, the Group participates in Algerie Sidi Abdela new town development consortium (percentage of ownership: 2.5%) and has joint liability with other consortium participants. As at December 31, 2020, contract amount of property and equipment acquisition agreement made but not yet recognized amounts to ₩ ₩ |
Leases
Leases | 12 Months Ended |
Dec. 31, 2020 | |
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Leases | 21. Lease s Information on leases when the Group is a lessee is as follows: Information on leases when the Group is a lessor is provided in Note 12. (i) Amounts recognized in the consolidated statement of financial position The consolidated statement of financial position shows the following amounts relating to leases: (In millions of Korean won) December 31, December 31, Right-of-use Property and building ₩ 1,020,619 ₩ 1,073,207 Machinery and track facilities 140,296 42,127 Others 107,414 101,845 Total ₩ 1,268,329 ₩ 1,217,179 Investment property (buildings) 50,010 19,456 (In millions of Korean won) December 31, December 31, Lease liabilities 1 Current ₩ 392,433 ₩ 345,224 Non-Current 818,919 798,416 Total ₩ 1,211,352 ₩ 1,143,640 1 Included in the line items ‘Other current liabilities and other non-current For the year ended December 31, 2020, right-of-use ₩ (ii) Amounts recognized in the consolidated statements of profit or loss The consolidated statements of profit or loss show the following amounts relating to leases: (In millions of Korean won) December 31, December 31, Depreciation of Right-of-use Property and building ₩ 300,773 ₩ 290,168 Machinery and track facilities 89,452 58,419 Others 52,402 55,588 Total ₩ 442,627 ₩ 404,175 Depreciation of Investment Properties ₩ 21,809 ₩ 19,113 Interest expense relating to lease liabilities 55,001 44,091 Expense relating to short-term leases 14,718 10,998 Expense relating to leases of low-value 26,575 25,894 Expense relating to variable lease payments not included in lease liabilities 5,993 8,096 The total cash outflow for leases for December 31, 2020, was ₩ ₩ . |
Share Capital
Share Capital | 12 Months Ended |
Dec. 31, 2020 | |
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Share Capital | 22. Share Capita l As at December 31, 2019 and 2020, the Group’s number of authorized shares is one billion. December 31, 2019 December 31, 2020 Number of issued shares Par value per share (Korean won) Ordinary (in millions of Korean won) Number of issued Par value per share (Korean won) Ordinary (in millions of Korean won) Ordinary shares 1 261,111,808 ₩ ₩ 261,111,808 ₩ ₩ 1 The Group retired 51,787,959 treasury shares against retained earnings. Therefore, the ordinary shares amount differs from the amount resulting from multiplying the number of shares issued. |
Retained Earnings
Retained Earnings | 12 Months Ended |
Dec. 31, 2020 | |
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Retained Earnings | 23. Retained Earnings Details of retained earnings as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, December 31, Legal reserve 1 ₩ 782,249 ₩ 782,249 Voluntary reserves 2 4,651,362 4,651,362 Unappropriated retained earnings 6,157,305 6,721,809 Total ₩ 11,590,916 ₩ 12,155,420 1 The Commercial Code of the Republic of Korea requires the Controlling Company to appropriate, as a legal reserve, an amount equal to a minimum of 10% of cash dividends paid until such reserve equals 50% of its issued share capital. The reserve is not available for the payment of cash dividends, but may be transferred to share capital with the approval of the Controlling Company’s Board of Directors or used to reduce accumulated deficit, if any, with the ratification of the Controlling Company’s majority shareholders. 2 The provision of research and development of human resources is separately accumulated with tax reserve fund during earned surplus disposal by Tax Reduction and Exemption Control Act of Korea. Reversal of this provision can be paid out as dividends according to related tax law. |
Accumulated Other Comprehensive
Accumulated Other Comprehensive Income and Other Components of Equity | 12 Months Ended |
Dec. 31, 2020 | |
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Accumulated Other Comprehensive Income and Other Components of Equity | 24. Accumulated Other Comprehensive Income and Other Components of Equit y As at December 31, 2019 and 2020, the details of the Controlling Company’s accumulated other comprehensive income are as follows: (In millions of Korean won) December 31, December 31, Changes in investments in associates and joint ventures ₩ 1,556 ₩ 16,257 Loss on derivatives valuation (7,624 ) 19,809 Gain on valuation of financial assets at fair value through other comprehensive income 211,573 61,438 Exchange differences on translation for foreign operations (10,571 ) (11,453 ) Total ₩ 194,934 ₩ 86,051 Changes in accumulated other comprehensive income for the years ended December 31, 2019 and 2020, are as follows: 2019 (In millions of Korean won) Beginning Increase/ decrease Reclassification to gain or loss Ending Changes in investments in associates and joint ventures ₩ (871 ) ₩ 2,427 ₩ — ₩ 1,556 Gain or loss on derivatives valuation (30,474 ) 67,534 (44,684 ) (7,624 ) Gain on valuation of financial assets at fair value through other comprehensive income 96,704 114,869 — 211,573 Exchange differences on translation for foreign operations (15,201 ) 4,630 — (10,571 ) Total ₩ 50,158 ₩ 189,460 ₩ (44,684 ) ₩ 194,934 (In millions of Korean won) 2020 Beginning Increase/ decrease Reclassification to gain or loss Ending Changes in investments in associates and joint ventures ₩ 1,556 ₩ 14,701 ₩ — ₩ 16,257 Gain or loss on derivatives valuation (7,624 ) (83,998 ) 111,431 19,809 Gain on valuation of financial assets at fair value through other comprehensive income 211,573 (150,135 ) — 61,438 Exchange differences on translation for foreign operations (10,571 ) (882 ) — (11,453 ) Total ₩ 194,934 ₩ ) ₩ 111,431 ₩ 86,051 The Group’s other components of equity as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, December 31, Treasury stock 1 ₩ ₩ Gain or loss on disposal of treasury stock 2 1,229 (17,579 ) Share-based payments 7,769 5,901 Others 3 (353,243 ) (340,882 ) Total ₩ ) ₩ ) 1 During the year ended December 31, 2020, the Group acquired 4,550,000 treasury shares and granted 1,150,580 treasury shares as share-based payment. 2 The amount directly reflected in equity is ₩7,288 million (2019: ₩603 million) for the year ended December 31, 2020. 3 Profit or loss incurred from transactions with non-controlling As at December 31, 2019 and 2020 December 31, December 31, Number of shares (in shares) 15,870,258 19,269,678 Amounts (In millions of Korean won) ₩ 825,838 ₩ 882,224 Treasury stock is expected to be used for the stock compensation for the Group’s directors and employees and other purposes. |
Share-based Payments
Share-based Payments | 12 Months Ended |
Dec. 31, 2020 | |
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Share-based Payments | 25. Share-based Payments Details of share-based payments as at December 31, 2020, are as follows: (In share) 14th grant Grant date June 16, 2020 Grantee CEOs, internal directors, external directors, executives Vesting conditions Service condition: 1 year Non-market Fair value per option (in Korean won) ₩ Total compensation costs (in Korean won) ₩ Estimated exercise date (exercise date) During 2021 Valuation method Fair value method (In share) Employee wage negotiation Grant date September 21, 2020 Grantee All employees Vesting conditions Current employees as of September 21, 2020 Fair value per option (in Korean won) ₩ Total compensation costs (in Korean won) ₩ Estimated exercise date (exercise date) December 22, 2020 Valuation method Fair value method Changes in the number of stock options and the weighted-average exercise price as at December 31, 2019 and 2020, are as follows: 2019 Beginning Grant Expired Exercised 1 Ending Number of 12th grant 353,325 — 256,543 96,782 — — 13th grant — 372,023 — — 372,023 — Total 353,325 372,023 256,543 96,782 372,023 — 2020 Beginning Grant Expired Exercised 1 Ending Number of 13th grant 372,023 — 241,548 130,475 — — 14th grant — 398,856 — — 398,856 — Employee wage negotiation — 1,020,105 — 1,020,105 — — Total 372,023 1,418,961 241,548 1,150,580 398,856 — 1 The weighted average price of ordinary shares at the time of exercise in 2020 was ₩ ₩ |
Revenue from Contracts with Cus
Revenue from Contracts with Customers and Relevant Contract Assets and Liabilities | 12 Months Ended |
Dec. 31, 2020 | |
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Revenue from Contracts with Customers and Relevant Contract Assets and Liabilities | 26. Revenue from Contracts with Customers and Relevant Contract Assets and Liabilities The Group has recognized the following amounts relating to revenue in the Consolidated Statements of Operations: (In millions of Korean won) 2018 2019 2020 Revenue from contracts with customers ₩ 23,012,257 ₩ 24,441,122 ₩ 23,895,631 Revenue from other sources 423,793 458,067 545,016 Total revenue ₩ 23,436,050 ₩ 24,899,189 ₩ 24,440,647 Operating revenues for the years ended December 31, 2018, 2019 and 2020 are as follows: (In millions of Korean won) 2018 2019 2020 Mobile services ₩ 6,827,685 ₩ 6,795,124 ₩ 6,805,218 Fixed-line services 4,869,253 4,866,698 4,827,015 Fixed-line and VoIP telephone services 1,708,319 1,578,546 1,463,553 Broadband Internet access services 2,112,763 2,177,447 2,256,188 Data communication services 1,048,171 1,110,705 1,107,274 Media and content 2,261,808 2,516,256 2,637,691 Financial services 3,444,917 3,641,655 3,493,920 Sale of goods 3,288,911 4,194,168 3,593,127 Others 2,743,476 2,885,288 3,083,676 Total ₩ 23,436,050 ₩ 24,899,189 ₩ 24,440,647 Mobile and fixed-line service Telecommunication service revenues include mobile and fixed-line(e.g., fixed-line and VoIP telephone, broadband internet access services and data communication services). These services represent a series of distinct services that are considered a separate performance obligations. Service revenue is recognized when services are provided, based upon either usage (e.g., minutes of traffic/bytes of data processed) or period of time (e.g., monthly service fees). Media and content services Revenue from media and content services primarily consists of installation fees and basic monthly charges of IPTV and satellite TV services, as well as revenue from digital content distribution, digital music streaming and downloading. Media and contents services revenue are recognized when services are provided, based upon either usage or period of time. Financial services Financial services primarily include commissions for merchant fees paid by merchants to credit card companies for processing transactions. Revenue from the commission is recognized when the service obligation is performed. Sale of goods Revenue from sale of goods, primarily handsets related to our mobile services is recognized when a performance obligation is satisfied by transferring promised goods to customers. The contract assets and liabilities recognized in relation to the revenues from contracts with customers are as follows: (In millions of Korean won) December 31, December 31, Contract assets 1 ₩ 655,329 ₩ 672,672 Contract liabilities 1 413,442 413,707 Deferred revenue 2 ₩ 92,557 ₩ 89,694 1 The Group recognized contract assets of ₩ ₩ ₩ ₩ 2 Deferred revenue recognized relating to government grant is excluded. The contract costs recognized as assets are as follows: (In millions of Korean won) December 31, December 31, Incremental cost of contract establishment ₩ 1,764,009 ₩ 1,726,191 Cost of Contract performance 85,234 78,757 As at December 31, 2020, the Group recognized ₩ ₩ The recognized revenue arising from carried-forward contract liabilities from prior year is as follows: (In millions of Korean won) 2018 2019 2020 Revenue recognized that was included in the contract liability balance at the beginning of the year Allocation of the transaction price ₩ 183,905 ₩ 266,478 ₩ 251,975 Deferred revenue of joining/installment fee 39,975 44,032 42,685 Others 1,536 — — Total ₩ 225,416 ₩ 310,510 ₩ 294,660 |
Operating Expenses
Operating Expenses | 12 Months Ended |
Dec. 31, 2020 | |
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Operating Expenses | 27. Operating Expenses Operating expenses for the years ended December 31, 2018, 2019 and 2020, are as follows: (In millions of Korean won) 2018 2019 2020 Salaries and wages ₩ 3,845,842 ₩ 3,974,233 ₩ 4,123,680 Depreciation 2,674,205 2,530,252 2,605,128 Depreciation of right-of-use — 442,629 404,175 Amortization of intangible assets 607,527 656,611 624,982 Commissions 1,080,168 1,115,477 965,461 Interconnection charges 579,613 534,025 500,081 International interconnection fee 226,627 240,254 172,529 Purchase of inventories 4,414,094 4,453,820 3,681,801 Changes of inventories (432,607 ) 282,957 257,041 Sales commission 1,942,841 2,315,731 2,337,127 Service cost 1,540,869 1,610,261 2,102,875 Utilities 323,411 332,816 360,797 Taxes and dues 285,131 277,742 283,197 Rent 460,377 193,357 136,355 Insurance premium 73,654 82,404 71,018 Installation fee 143,669 155,178 132,117 Advertising expenses 157,675 150,166 132,466 Research and development expenses 176,758 165,028 156,940 Card service cost 3,112,618 3,066,766 2,941,669 Others 1,122,718 1,292,512 1,428,875 Total ₩ 22,335,190 ₩ 23,872,219 ₩ 23,418,314 Details of salaries and wages for the years ended December 31, 2018, 2019 and 2020, are as follows: (In millions of Korean won) 2018 2019 2020 Short-term employee benefits ₩ 3,505,214 ₩ 3,663,337 ₩ 3,770,786 Post-employment benefits(Defined benefit plan) 232,045 240,310 239,102 Post-employment benefits(Defined contribution plan) 48,210 57,170 61,912 Share-based payment 8,439 6,398 28,604 Others 51,934 7,018 23,276 Total ₩ 3,845,842 ₩ 3,974,233 ₩ 4,123,680 |
Financial Income and Costs
Financial Income and Costs | 12 Months Ended |
Dec. 31, 2020 | |
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Financial Income and Costs | 28. Financial Income and Costs Details of financial income for the years ended December 31, 2018, 2019 and 2020, are as follows: (In millions of Korean won) 2018 2019 2020 Interest income ₩ 244,796 ₩ 282,704 ₩ 270,571 Gain on foreign currency transactions 17,175 24,596 17,493 Gain on foreign currency translation 3,691 17,979 164,351 Gain on settlement of derivatives 27,950 9,016 9,397 Gain on valuation of derivatives 66,305 77,353 172 Others 14,326 12,747 36,630 Total ₩ 374,243 ₩ 424,395 ₩ 498,614 Details of financial costs for the years ended December 31, 2018, 2019 and 2020, are as follows: (In millions of Korean won) 2018 2019 2020 Interest expenses ₩ 296,874 ₩ 278,427 ₩ 263,579 Loss on foreign currency transactions 49,156 30,267 27,805 Loss on foreign currency translation 72,642 93,977 26,340 Loss on settlement of derivatives — 20 1,406 Loss on valuation of derivatives 2,045 15,867 163,763 Loss on disposal of trade receivables 13,818 11,298 8,152 Others 1,124 2,277 16,338 Total ₩ 435,659 ₩ 432,133 ₩ 507,383 |
Deferred Income Tax and income
Deferred Income Tax and income Tax Expense | 12 Months Ended |
Dec. 31, 2020 | |
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Deferred Income Tax and income Tax Expense | 29. Deferred Income Tax and income Tax Expens e The analysis of deferred tax assets and deferred tax liabilities as at December 31, 2019 and 2020, is as follows: (In millions of Korean won) December 31, December 31, Deferred tax assets Deferred tax assets to be recovered within 12 months ₩ 419,889 ₩ 404,434 Deferred tax assets to be recovered after more than 12 months 1,613,836 1,631,759 Deferred tax assets before offsetting 2,033,725 2,036,193 Deferred tax liabilities Deferred tax liability to be recovered within 12 months (538,578 ) (637,317 ) Deferred tax liability to be recovered after more than 12 months (1,495,759 ) (1,394,509 ) Deferred tax liabilities before offsetting (2,034,337 ) (2,031,826 ) Deferred tax assets after offsetting ₩ 424,856 ₩ 433,698 Deferred tax liabilities after offsetting ₩ 425,468 ₩ 429,331 The gross movements on the deferred income tax account for the years ended December 31, 2019 and 2020, are calculated as follows: (In millions of Korean won) 2019 2020 Beginning ₩ 260,584 ₩ (612 ) Changes to the statement of operations (199,527 ) (72,124 ) Changes to other comprehensive loss (income) (61,669 ) 77,103 Ending ₩ (612 ) ₩ 4,367 The movement in deferred income tax assets and liabilities during the year, without taking into consideration the offsetting of balances within the same tax jurisdiction, is as follows: (In millions of Korean won) 2019 Beginning Consolidated Other Ending Deferred tax liabilities Derivative instruments — (10,250 ) (648 ) (10,898 ) Investment in subsidiaries, associates, and joint ventures (93,604 ) (14,622 ) 35 (108,191 ) Depreciation (424 ) (11,182 ) — (11,606 ) Advanced depreciation provision (313,184 ) 63 — (313,121 ) Deposits for severance benefits (398,982 ) (99,126 ) 1,255 (496,853 ) Accrued income (1,558 ) 17 — (1,541 ) Reserve for technology and human resource development (204 ) — — (204 ) Contract cost (369,916 ) (40,947 ) — (410,863 ) Contract assets (11,505 ) (42,245 ) — (53,750 ) Financial assets at fair value through profit or loss (661 ) 338 — (323 ) Financial assets at fair value through other comprehensive income (41,798 ) (3,556 ) (58,483 ) (103,837 ) Others (284,255 ) (238,725 ) (170 ) (523,150 ) Total (1,516,091 ) (460,235 ) (58,011 ) (2,034,337 ) Deferred tax assets Derivative instruments 8,341 (850 ) (7,491 ) — Provision for impairment or trade receivables 99,887 (15,816 ) — 84,071 Inventory valuation 121 (98 ) — 23 Contribution for construction 16,800 (646 ) — 16,154 Unsettled expenses 127,897 32,539 — 160,436 Provisions 36,178 (3,354 ) — 32,824 Property and equipment 230,278 (1,623 ) — 228,655 Defined benefit liabilities 513,842 48,847 6,782 569,471 Withholding of facilities expenses 6,609 (426 ) — 6,183 Deduction of installment receivables 42 6 — 48 Assets retirement obligation 24,532 4,484 — 29,016 Gain or loss foreign currency translation 10,672 10,005 — 20,677 Deferred revenue 39,641 (3,841 ) — 35,800 Real-estate sales 21,728 (8,043 ) — 13,685 Others 537,209 174,177 (2,949 ) 708,437 Total 1,673,777 235,361 (3,658 ) 1,905,480 Temporary difference, net 157,686 (224,874 ) (61,669 ) (128,857 ) Tax credit carryforwards 102,898 25,347 — 128,245 Total net balance 260,584 (199,527 ) (61,669 ) (612 ) (In millions of Korean won) 2020 Beginning Consolidated Other Ending Deferred tax liabilities Derivative instruments (10,898 ) 10,055 — (843 ) Investment in subsidiaries, associates, and joint ventures (108,191 ) (64,553 ) (8,820 ) (181,564 ) Depreciation (11,606 ) 7,431 — (4,175 ) Advanced depreciation provision (313,121 ) 1,203 — (311,918 ) Deposits for severance benefits (496,853 ) (26,419 ) 2,015 (521,257 ) Accrued income (1,541 ) (212 ) — (1,753 ) Reserve for technology and human resource development (204 ) — — (204 ) Contract cost (410,863 ) 67,898 — (342,965 ) Contract assets (53,750 ) (112,794 ) — (166,544 ) Financial assets at fair value through profit or loss (323 ) (304 ) — (627 ) Financial assets at fair value through other comprehensive income (103,837 ) (4,420 ) 77,634 (30,623 ) Others (523,150 ) 53,797 — (469,353 ) Total (2,034,337 ) (68,318 ) 70,829 (2,031,826 ) Deferred tax assets Derivative instruments — 40,342 (9,860 ) 30,482 Provision for impairment or trade receivables 84,071 4,994 — 89,065 Inventory valuation 23 (259 ) — (236 ) Contribution for construction 16,154 246 — 16,400 Unsettled expenses 160,436 (24,358 ) — 136,078 Provisions 32,824 1,198 — 34,022 Property and equipment 228,655 (1,695 ) — 226,960 Defined benefit liabilities 569,471 13,707 15,186 598,364 Withholding of facilities expenses 6,183 (436 ) — 5,747 Deduction of installment receivables 48 (20 ) — 28 Assets retirement obligation 29,016 (883 ) — 28,133 Gain or loss foreign currency translation 20,677 (20,539 ) — 138 Deferred revenue 35,800 7,230 — 43,030 Contract assets — 97,464 — 97,464 Real-estate sales 13,685 (13,685 ) — — Others 708,437 (123,798 ) 948 585,587 Total 1,905,480 (20,492 ) 6,274 1,891,262 Temporary difference, net (128,857 ) (88,810 ) 77,103 (140,564 ) Tax credit carryforwards 128,245 16,686 — 144,931 Total net balance (612 ) (72,124 ) 77,103 4,367 The tax impacts recognized directly to equity as at December 31, 2018, 2019, and 2020, are as follows: 2018 2019 2020 (In millions of Korean won) Before recognition Tax effect After Before recognition Tax effect After Before recognition Tax effect After Gain on valuation of financial assets at fair value through other comprehensive income 59,384 (15,573 ) 43,811 225,635 (58,483 ) 167,152 54,969 (12,972 ) 41,997 Gain (loss) on valuation of hedge instruments (36,756 ) 9,745 (27,011 ) 31,003 (8,139 ) 22,864 37,247 (9,860 ) 27,387 Remeasurements of net defined benefit liabilities (116,324 ) 42,813 (73,511 ) (33,814 ) 8,037 (25,777 ) (77,382 ) 17,201 (60,181 ) Share of gain(loss) of associates and joint ventures, and others (1,036 ) 179 (857 ) 4,493 (1,327 ) 3,166 25,538 (8,820 ) 16,718 Exchange differences on translation for foreign operations 3,989 (1,049 ) 2,940 6,692 (1,759 ) 4,933 (3,614 ) 948 (2,666 ) Total ₩ (90,743 ) ₩ 36,115 ₩ (54,628 ) ₩ 234,009 ₩ (61,671 ) ₩ 172,338 ₩ 36,758 ₩ (13,503 ) ₩ 23,255 Details of income tax expense for the years ended December 31, 2018, 2019 and 2020, are calculated as follows: (In millions of Korean won) 2018 2019 2020 Current income tax expense ₩ 329,581 ₩ 120,533 ₩ 213,225 Impact of change in deferred taxes (15,016 ) 199,527 72,124 Income tax expense ₩ 314,565 ₩ 320,060 ₩ 285,349 The tax on the Group’s profit before tax differs from the theoretical amount that would arise using the weighted average tax rate applicable to profits of the entities as follows: (In millions of Korean won) 2018 2019 2020 Profit before income tax expense ₩ 1,033,977 ₩ 1,015,928 ₩ 1,031,605 Statutory income tax expense ₩ 273,982 ₩ 269,018 ₩ 273,329 Tax effect Income not taxable for taxation purposes (85,322 ) (1,265 ) (24,657 ) Non-deductible expenses 18,126 19,543 31,741 Tax credit (20,319 ) (39,190 ) (47,056 ) Additional payment of income taxes 11,439 3,832 429 Tax effect and adjustment on consolidation Goodwill impairment 137 159 — Eliminated dividend income form subsidiaries 31,966 21,917 20,682 Changes of out-side 618 13,539 38,552 Investment in-kind 82,820 — — Intangible Asset impairment and amortization — 14,052 3,790 Reversal expenses of contract cost assets — 11,213 (6,643 ) Others 1,118 7,242 (4,818 ) Income tax expense ₩ 314,565 ₩ 320,060 ₩ 285,349 Details of deferred tax assets and liabilities that are not recognized as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) 2019 2020 Deductible temporary differences Investment in subsidiaries, associates, and joint ventures ₩ 610,351 ₩ 583,890 Unused tax loss 31,257 28,115 Unused Tax credit — 2,654 Others 32,494 64,760 Total ₩ 674,102 ₩ 679,419 Taxable temporary differences Investment in subsidiaries, associates, and joint ventures ₩ 141,664 ₩ 132,848 Others 10,372 9,568 Total ₩ 152,036 ₩ 142,416 The expected period of expiry for unused tax losses not recognized in deferred tax assets as at December 31, 2019 and 2020, is as follows: (In millions of Korean won) 2019 2020 2021 ₩ 18,582 ₩ 2,140 2022 2,140 80,649 2023 80,649 5,848 2024 5,848 4,867 2025 4,867 2,847 2026 9,390 9,709 2027 7,888 8,389 2028 10,064 8,426 2029 2,030 2,579 2030 617 2,339 Total ₩ 142,075 ₩ 127,793 |
Earnings per Share
Earnings per Share | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Earnings per Share | 30. Earnings per Share Basic earnings per share is calculated by dividing the profit from operations attributable to equity holders of the Group by the weighted average number of ordinary shares outstanding during the period, excluding ordinary shares purchased by the Group and held as treasury stock. Basic earnings per share from operations for the years ended December 31, 2018, 2019 and 2020, is calculated as follows: 2018 2019 2020 Profit attributable to ordinary shares (In millions of Korean won) ₩ 645,571 ₩ 645,703 ₩ 700,889 Weighted average number of ordinary shares outstanding (In number of shares) 245,049,466 245,171,283 245,207,307 Basic earnings per share (In Korean won) 2,634 2,634 2,858 Diluted earnings per share from operations is calculated by adjusting the weighted average number of ordinary shares outstanding to assume conversion of all dilutive potential ordinary shares. The Controlling Company has dilutive potential ordinary shares from convertible preferred stocks, stock options and other share-based payments. Diluted earnings per share from operations for the years ended December 31, 2018, 2019 and 2020 is calculated as follows: 2018 2019 2020 Profit attributable to ordinary shares (In millions of Korean won) ₩ 645,571 ₩ 645,703 ₩ 700,889 Adjustment to net income attributable to ordinary shares (In millions of Korean won) — (157 ) — Diluted profit attributable to ordinary shares (In millions of Korean won) 645,571 645,546 700,889 Number of dilutive potential ordinary shares outstanding (In number of shares) 1,163 70,267 69,598 Weighted average number of ordinary shares outstanding (In number of shares) 245,050,629 245,241,550 245,276,905 Diluted earnings per share (In Korean won) 2,634 2,632 2,858 Diluted earnings per share is earnings per outstanding of ordinary shares and dilutive potential ordinary shares. Diluted earnings per share is calculated by dividing adjusted profit for the year by the sum of the number of ordinary shares and dilutive potential ordinary shares. |
Dividend
Dividend | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Dividend | 31. Dividend The dividends paid by the Group in 2020, 2019 and 2018 were ₩ ₩ ₩ ₩ ₩ ₩ ₩ ₩ |
Cash Generated from Operations
Cash Generated from Operations | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Cash Generated from Operations | 32. Cash Generated from Operations Cash flows from operating activities for the years ended December 31, 2018, 2019 and 2020, are as follows: (In millions of Korean won) 2018 2019 2020 1. Profit for the year ₩ 719,412 ₩ 695,868 ₩ 746,256 2. Adjustments to reconcile net income Income tax expense 314,565 320,060 285,349 Interest income (265,817 ) (303,722 ) (291,425 ) Interest expense 296,894 278,975 265,035 Dividends income (2,910 ) (3,408 ) (4,442 ) Depreciation 2,735,413 2,567,754 2,635,307 Amortization of intangible assets 629,526 660,705 628,154 Depreciation of right-of-use — 433,199 404,174 Provision for severance benefits 245,926 256,525 255,615 Impairment losses on trade receivables 113,064 60,193 139,957 Share of net profit or loss of associates and joint ventures 5,912 3,252 (18,041 ) Loss(gain) on disposal of associates and joint ventures (3,737 ) 30 111 Loss(gain) on disposal of right-of-use — 1,556 2,047 Impairment losses on assets held for sale — 7,586 — Loss on disposal of property and equipment and investment in properties 68,688 49,284 55,590 Loss(gain) on disposal of intangible assets (4,256 ) (1,248 ) 246 Loss on impairment of intangible assets 12,997 61,899 211,636 Loss(gain) on foreign currency translation 68,952 75,998 (138,011 ) Loss(gain) on valuation and settlement of derivatives, net (92,210 ) (70,482 ) 155,600 Loss(gain) on disposal of financial assets at fair value through profit or loss (1,712 ) (5,115 ) 329 Gain on valuation of financial assets at fair value through profit or loss (10,768 ) (4,335 ) (59,044 ) Loss(gain) on disposal of financial assets at amortized cost (44 ) 43 (138 ) Others (55,969 ) 143,500 127,949 3. Changes in operating assets and liabilities Decrease(increase) in trade receivables (81,217 ) (433,292 ) 66,462 Decrease(Increase) in other receivables 356,643 (79,130 ) 685,209 Decrease(increase) in other current assets (123,258 ) 984 9,089 Decrease(increase) in other non-current 19,556 (178,180 ) (86,039 ) Decrease(increase) in inventories (480,543 ) 240,488 288,507 Increase(decrease) in trade payables (167,841 ) 44,354 (135,760 ) Decrease in other payables (448,301 ) (102,375 ) (1,232,646 ) Increase in other current liabilities 291,548 43,384 127,076 Increase(decrease) in other non-current 144,072 (199,547 ) (56,319 ) Decrease(Increase) in provisions 85,946 (12,164 ) 2,264 Decrease(Increase) in deferred revenue 48,201 641 (1,948 ) Increase in plan assets (53,301 ) (375,499 ) (136,336 ) Payment of severance benefits (153,209 ) (119,716 ) (186,520 ) 4. Cash generated from operations (1+2+3) ₩ 4,212,222 ₩ 4,058,065 ₩ 4,745,293 The Group made agreements with securitization specialty companies and disposed of its trade receivables related to handset sales (Note 20). Cash flows from the disposals are presented in cash generated from operations. Significant transactions not affecting cash flows for the years ended December 31, 2018, 2019 and 2020, are as follows: (In millions of Korean won) 2018 2019 2020 Reclassification of the current portion of borrowings ₩ 1,149,599 ₩ 1,030,056 ₩ 1,229,359 Reclassification of construction-in-progress 1,988,014 2,698,146 3,011,519 Reclassification of accounts payable from property and equipment 122,185 685,859 22,052 Reclassification of accounts payable from intangible assets 584,595 (356,911 ) (345,675 ) Reclassification of payable from defined benefit liability (31,838 ) (19,053 ) 72,346 Reclassification of payable from plan assets (9,497 ) (14,298 ) 66,046 |
Changes in Liabilities Arising
Changes in Liabilities Arising from Financing Activities | 12 Months Ended |
Dec. 31, 2020 | |
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Changes in Liabilities Arising from Financing Activities | 33. Changes in Liabilities Arising from Financing Activities Changes in liabilities arising from financing activities, liabilities related to cashflow to be classified as future financing activities, for the years ended December 31, 2019 and 2020, are as follows: (In millions of 2019 Beginning Cash Non-cash Ending Changes in 1 Newly Exchange Fair Value Others Borrowing ₩ 6,648,294 ₩ 574,175 ₩ — ₩ — ₩ 64,398 ₩ — ₩ 12,000 ₩ 7,298,867 Lease liabilities 163,858 (485,444 ) 771,410 774,906 — — (13,379 ) 1,211,351 Derivative liabilities 65,067 (9,734 ) — — (4,234 ) (20,058 ) (10,945 ) 20,096 Derivative assets (29,843 ) 33,635 — — (53,729 ) (11,398 ) 2,759 (58,576 ) Total ₩ 6,847,376 ₩ 112,632 ₩ 771,410 ₩ 774,906 ₩ 6,435 ₩ (31,456 ) ₩ (9,565 ) ₩ 8,471,738 1 For information on the financial impacts due to change in accounting policy, see Note 41. (In millions of 2020 Beginning Cash Non-cash Ending Newly Exchange Fair Value Change in Others Borrowing ₩ 7,298,867 ₩ 167,867 ₩ 17,523 ₩ (157,985 ) ₩ — ₩ — ₩ (9,974 ) ₩ 7,316,298 Lease liabilities 1,211,351 (447,784 ) 473,477 (3 ) 40 3,564 (97,005 ) 1,143,640 — (13,674 ) 13,674 — — — — — Derivative liabilities 20,096 (943 ) 2,798 142,511 (23,669 ) — (10,220 ) 130,573 Derivative assets (58,576 ) 34,933 — 2,870 (3,456 ) — 16,623 (7,606 ) Total ₩ 8,471,738 ₩ (259,601 ) ₩ 507,472 ₩ (12,607 ) ₩ (27,085 ) ₩ 3,564 ₩ (100,576 ) ₩ 8,582,905 |
Segment Information
Segment Information | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Segment Information | 34. Segment Information The Group’s operating segments are as follows: Details Business service ICT Mobile/fixed line telecommunication service and convergence business, B2B business and others Finance Credit card business and others Satellite TV Satellite TV business Others IT, facility security and global business, and others Details of each segment for the years ended December 31, 2018, 2019 and 2020, are as follows: 2018 (In millions of Korean won) Operating revenues Operating Income Depreciation and Amortization 1 ICT ₩ 17,724,320 ₩ 933,191 ₩ 2,917,163 Finance 3,771,681 148,440 22,580 Satellite TV 690,821 66,735 98,310 Others 5,159,459 53,316 236,715 27,346,281 1,201,682 3,274,768 Elimination (3,910,231 ) (100,822 ) 6,964 Consolidated amount ₩ 23,436,050 ₩ 1,100,860 ₩ 3,281,732 1 Sum of the amortization of tangible assets, intangible assets, investment properties, and right-of-use 2019 (In millions of Korean won) Operating revenues Operating Income Depreciation and Amortization 1 ICT ₩ 18,527,631 ₩ 634,046 ₩ 3,229,159 Finance 3,795,185 158,235 27,852 Satellite TV 694,637 69,357 94,992 Others 5,845,973 218,402 357,294 28,863,426 1,080,040 3,709,297 Elimination (3,964,237 ) (53,070 ) (79,805 ) Consolidated amount ₩ 24,899,189 ₩ 1,026,970 ₩ 3,629,492 1 Sum of the amortization of tangible assets, intangible assets, investment properties, and right-of-use 2020 (In millions of Korean won) Operating revenues Operating Income Depreciation and Amortization 1,2 ICT ₩ 18,275,765 ₩ 809,741 ₩ 3,233,878 Finance 3,686,430 85,008 53,098 Satellite TV 706,631 71,345 84,931 Others 5,944,093 209,078 346,215 28,612,919 1,175,172 3,718,122 Elimination (4,172,272 ) (152,839 ) (83,838 ) Consolidated amount ₩ 24,440,647 ₩ 1,022,333 ₩ 3,634,284 1 Sum of the amortization of tangible assets, intangible assets, investment properties, and right-of-use 2 Property and equipment and intangible assets associated with ICT reporting segment are ₩ Operating revenues for the years ended December 31, 2018, 2019 and 2020 and non-current (In millions of Korean won) Operating revenues Non-current 1 Location 2018 2019 2020 2019.12.31 2020.12.31 Domestic ₩ 23,376,218 ₩ 24,832,068 ₩ 24,368,729 ₩ 19,198,416 ₩ 18,934,766 Overseas 59,832 67,121 71,918 76,679 18,243 Total ₩ 23,436,050 ₩ 24,899,189 ₩ 24,440,647 ₩ 19,275,095 ₩ 18,953,009 1 Non-current right-of-use |
Related Party Transactions
Related Party Transactions | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Related Party Transactions | 35. Related Party Transaction s The list of related party of the Group as at December 31, 2020, is as follows: Relationship Name of Entry Associates and joint ventures Korea Information & Technology Investment Fund (KIF Investment Fund), K-Realty CR-REITs K-REALTY CR-REIT KT-DSC start-up K-REALTY KT-IBKC KT-Smart Outstanding balances of receivables and payables in relations to transactions with related parties as at December 31, 2019 and 2020, are as follows: December 31, 2019 Receivables Payables (In millions of Korean won) Trade Other Other Lease Associates and joint ventures K- CR-REITs ₩ 608 ₩ 23,100 ₩ — ₩ 57,907 K Bank, Inc. 583 13,664 557 — Others 434 1,177 711 — Total ₩ 1,625 ₩ 37,941 ₩ 1,268 ₩ 57,907 December 31, 2020 Receivables Payables (In millions of Korean won) Trade Other Other Lease Associates and joint ventures K- CR-REITs ₩ 457 ₩ 16,200 ₩ — ₩ 20,857 K Bank, Inc. 775 32,964 891 — Others 72 1,147 858 — Total ₩ 1,304 ₩ 50,311 ₩ 1,749 ₩ 20,857 Significant transactions with related parties for the years ended December 31, 2018, 2019 and 2020, are as follows: 2018 (In millions of Korean won) Sales Purchases 1 Dividend income Associates and joint ventures K- CR-REITs ₩ ₩ ₩ MOS GS Co., Ltd. 2 493 12,023 8 MOS Daegu Co., Ltd. 2 229 8,775 8 MOS Chungcheong Co., Ltd. 2 540 9,159 8 MOS Gangnam Co., Ltd. 2 333 11,549 10 MOS GB Co., Ltd. 2 1,378 16,519 12 MOS BS Co., Ltd. 2 324 11,193 10 MOS Honam Co., Ltd. 2 331 10,499 10 K Bank, Inc. 15,705 7,004 — NgeneBio 3 3 — — Others 2,888 9,547 2,148 Total ₩ ₩ ₩ 1 The amounts include acquisition of primarily property and equipment. 2 It is the amount before excluded from consolidation during the year. 3 It is the amount before excluded from associates during the year 2019 (In millions of Korean won) Sales Purchases 1 Associates and joint ventures K- CR-REITs ₩ 1,302 ₩ — K Bank, Inc. 17,815 8,524 Others 1,498 10,531 Others K-REALTY CR-REIT 1 2,801 — Total ₩ 23,416 ₩ 19,055 1 The amounts include acquisition of property and equipment and others. December 31, 2019 (In millions of Korean won) Acquisition Acquisition of right-of-use Interest Dividend Associates and joint ventures K- CR-REITs ₩ — ₩ 776 ₩ 2,225 ₩ 10,928 Korea Information & Technology Investment Fund (KIF Investment Fund) — — — 4,280 Others — — — 146 Total ₩ — ₩ 776 ₩ 2,225 ₩ 15,354 2020 (In millions of Korean won) Sales Purchases 1 Associates and joint ventures K- CR-REITs ₩ 2,298 ₩ — Korea Information & Technology Investment Fund (KIF Investment Fund) — — K Bank, Inc. 15,658 8,227 Others 809 10,272 Total ₩ 18,765 ₩ 18,499 1 December 31, 2020 (In millions of Korean won) Interest Interest Dividend Associates and joint ventures K- CR-REITs ₩ ₩ ₩ Korea Information & Technology Investment Fund (KIF Investment Fund) — — 9,241 K Bank, Inc. 14 — — Others — — 43 Total ₩ 14 ₩ 917 ₩ 17,345 Key management compensation for the years ended December 31, 2018, 2019 and 2020, consists of: (In millions of Korean won) 2018 2019 2020 Salaries and other short-term benefits ₩ 2,762 ₩ 2,955 ₩ 2,086 Post-employment benefits 751 321 390 Stock-based compensation 878 891 5,613 Total ₩ 4,391 ₩ 4,167 ₩ 8,089 Fund transactions with related parties for the years ended December 31, 2018, 2019 and 2020, are as follows: 2018 (In millions of Korean won) Equity Associates and joint ventures PHI Healthcare Inc. (HooH Healthcare Inc.) ₩ 1,000 KT-CKP (1,229 ) PT. Mitra Transaksi Indonesia 1 1,567 Gyeonggi-KT Yoojin Superman Fund 1,000 KT-DSC start-up (1,800 ) KT-IBKC (1,050 ) Korea Electronic Vehicle Charging Service 168 K Bank, Inc. 26,725 GE Premier 1st Corporate Restructuring Real Estate Investment Trust Company (3,423 ) JB Emerging Market Specialty Investment Private Equity Trust No.1 3,960 K-REALTY — Korea Information & Technology Investment Fund — MOS GS Co., Ltd. 2 (147 ) MOS Daegu Co., Ltd. 2 (147 ) MOS Chungcheong Co., Ltd. 2 (153 ) MOS Gangnam Co., Ltd. 2 (180 ) MOS GB Co., Ltd. 2 (203 ) MOS BS Co., Ltd. 2 (183 ) MOS Honam Co., Ltd. 2 (206 ) Daiwon Broadcasting Co., Ltd. — Boston Global Film & Contents Fund L.P. (986 ) Gyeonggi-KT Green Growth Fund — Total ₩ 24,713 1 It is the amount before reclassification to assets held for sale . 2 It is the amount before included in consolidation during the year. December 31, 2019 Borrowing transaction 1 Equity contributions (In millions of Korean won) Borrowing 2 Repayment KT-IBKC ₩ — ₩ — ₩ 3,750 KT Philippines co. Ltd. — — 99 Virtua Realm Sendirian Berhad — — 550 K-REALTY — 30,385 — K Bank, Inc — — 21,782 KIF Investment Fund — — — Daiwon Broadcasting Co.,Ltd. — — — JB Emerging Market Specialty Investment Private Equity Trust No.1 — — — Gyeonggi-KT Yoojin Superman Fund — — 1,000 KT-CKP — — (174 ) KT-DSC start-up — — (1,800 ) KT-Smart — — 2,800 KT-SB — — (2,404 ) Total ₩ — ₩ 30,385 ₩ 25,603 1 Borrowing transactions include lease transactions. 2 Conversion effect from the adoption of IFRS 16 Lease December 31, 2020 Borrowing transaction 1 Equity contributions (In millions of Korean won) Borrowing Repayment K- CR-REITs ₩ — ₩ 20,304 ₩ — Studio Discovery Co. Ltd. — — 3,000 KT Young Entrepreneurs DNA Investment Fund — — 3,600 KT-Smart — — 2,800 KT-CKP — — (109 ) K Bank Inc. — — 195,011 Gyeonggi-KT Yoojin Superman Fund — — 1,000 Hyundai Robotics Co. Ltd. — — 50,000 Total ₩ — ₩ 20,304 ₩ 255,302 1 Borrowing transactions include lease transactions. As at December 31, 2020, there is no collateral or payment guarantee provided to or from related parties. |
Financial Risk Management
Financial Risk Management | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Financial Risk Management | 36. Financial Risk Managemen t (1) Financial Risk Factors The Group’s activities expose it to a variety of financial risks: market risk, credit risk and liquidity risk. The Group’s overall risk management program focuses on the unpredictability of financial markets and seeks to minimize potential adverse effects on the Group’s financial performance. The Group uses derivative financial instruments to hedge certain risk exposures such as cash flow risk. The Group’s financial policy is set up in the long-term perspective and annually reported to the Board of Directors. The financial risk management is carried out by the Value Management Office, which identifies, evaluates and hedges financial risks. The treasury department in the Value Management Office considers various finance market conditions to estimate the effect from the market changes. 1) Market risk The Group’s market risk management focuses on controlling the extent of exposure to the risk in order to minimize revenue volatility. Market risk is a risk that decreases value or profit of the Group’s portfolio due to changes in market interest rate, foreign exchange rate and other factors. (i) Sensitivity analysis Sensitivity analysis is performed for each type of market risk to which the Group is exposed. Reasonably possible changes in the relevant risk variable such as prevailing market interest rates, currency rates, equity prices or commodity prices are estimated and if the rate of change in the underlying risk variable is stable, the Group does not alter the chosen reasonably possible change in the risk variable. The reasonably possible change does not include remote or ‘worst case’ scenarios or ‘stress tests’. (ii) Foreign exchange risk The Group is exposed to foreign exchange risk arising from operating, investing and financing activities. Foreign exchange risk is managed within the range of the possible effect on the Group’s cash flows. Foreign exchange risk (i.e. foreign currency translation of overseas operating assets and liabilities) unaffecting the Group’s cash flows is not hedged but can be hedged at a particular situation. As at December 31, 2018, 2019 and 2020, if the foreign exchange rate had strengthened/weakened by 10% with all other variables held constant, the effects on profit before inc o (In millions of Ko r Fluctuation of Income before tax 1 Shareholders’ equity 2018.12.31 10 % ₩ 7,212 ₩ 10,196 -10 % (12,413 ) (9,625 ) 2019.12.31 10 % ₩ 45,149 ₩ 52,092 -10 % (45,149 ) (52,092 ) 2020.12.31 10 % ₩ 25,220 ₩ 36,961 -10 % (25,220 ) (36,961 ) 1 Computed with considering derivatives hedging effect applied by the Group to hedge foreign exchange risk of liabilities in foreign currencies. The above analysis is a simple sensitivity analysis which assumes that all the variables other than foreign exchange rates are held constant. Therefore, the analysis does not reflect any correlation between foreign exchange rates and other variables, nor the management’s decision to decrease the risk. Details of financial assets and liabilit i (In thousands of foreign currencies) 2018 2019 2020 Financial Financial Financial Financial Financial Financial US D 528,539 1,893,849 645,941 1,830,764 400,046 1,937,935 SDR 1 267 730 255 729 255 728 JPY 66,078 50,000,000 24,930 80,000,000 209,376 46,000,009 GBP — 256 — 56 — — EUR 2 6 1 6 316 162 DZD 2 618 — — — — — CNY 1,954 171 457 161 458 491 UZS 3 121,053 — — — — — RWF 4 857 — 706 — 646 — THB 5 — — — — 535 — MMK 6 84 — 84 — — — TZS 7 — 2,876 6,919 — 1,019 — BWP 8 897 — 911 — 212 — HKD — — — 268 — 198 BDT 9 39,494 — 18,897 — — — PLN 10 26 — — — 26 — VND 11 467,272 — 271,563 — 242,370 — XAF 12 666 — 97,411 — 16,229 — SGD — — — — 6 284,000 1 Special Drawing Rights. 2 Algeria Dinar. 3 Uzbekistan Sum. 4 Rwanda Franc. 5 Thailand Bhat. 6 Myanmar Kyat. 7 Tanzanian Shilling. 8 Botswana Pula. 9 Bangladesh Taka. 10 Polish Zloty. 11 Vietnam Dong. 12 Central African Franc. (iii) Price risk As at December 31, 2018, 2019 and 2020, 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 shareholders’ equity would have been as follows: (In millions of Korean won) Fluctuation of price Income before tax Equity 2018.12.31 10% ₩ 12 ₩ 898 -10% (12 ) (898 ) 2019.12.31 10% ₩ 24 ₩ 613 -10% (24 ) (613 ) 2020.12.31 10% ₩ 2,811 ₩ 3,472 -10% (2,811 ) (3,472 ) The above analysis is based on the assumption that the equity index had increased/decreased by 10% with all other variables held constant and all the Group’s marketable equity instruments had moved according to the historical correlation with the index. Gain or loss on equity securities classified as financial assets at fair value through profit or loss and financial assets at fair value through other comprehensive income can increase or decrease equity. (iv) Cash flow and fair value interest rate risk The Group’s interest rate risk arises from liabilities in foreign currency such as foreign currency debentures. Debentures in foreign currency issued at variable rates expose the Group to cash flow interest rate risk which is partially offset by swap transactions. Debentures and borrowings issued at fixed rates expose the Group to fair value interest rate risk. The Group sets the policy and operates to minimize the uncertainty of the changes in interest rates and financial costs. As at December 31, 2018, 2019 and 2020, 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 Income before tax Shareholders’ equity 2018.12.31 + 100 bp ₩ 1,059 ₩ 9,689 - 100 bp (1,958 ) (10,237 ) 2019.12.31 + 100 bp ₩ 425 ₩ 14,764 - 100 bp (482 ) (19,280 ) 2020.12.31 + 100 bp ₩ 973 ₩ 18,584 - 100 bp (973 ) (19,377 ) The above analysis is a simple sensitivity analysis which assumes that all the variables other than market interest rates are held constant. Therefore, the analysis does not reflect any correlation between market interest rates and other variables, nor the management’s decision to decrease the risk. 2) Credit risk Credit risk is the risk of financial loss to the Group if a customer or counterparty to a financial instrument fails to meet its contractual obligations, and arises principally from the Group’s trade receivables from customers, debt securities and others. - Risk management Credit risk is managed on the Group basis with the purpose of minimizing financial loss. Credit risk arises from the normal transactions and investing activities, where clients or other party fails to discharge an obligation on contract conditions. To manage credit risk, the Group considers the counterparty’s credit based on the counterparty’s financial conditions, default history and other important factors. Credit risk arises from cash and cash equivalents, derivative financial instruments and deposits with banks and financial institutions, as well as outstanding receivables. To minimize such risk, only the financial institutions with strong credit ratings are accepted. The Group’s investments in debt instruments are considered to be low risk investments. The credit ratings of the investments are monitored for credit deterioration . - Security For some trade receivables, the Group may obtain security in the form of guarantees or letters of credit, etc. which can be called upon if the counterparty is in default under the terms of the agreement. - Impairment of financial assets The Group has four types of financial assets that are subject to the expected credit loss model: • trade receivables for sales of goods and provision of services, • contract assets relating to provision of services, • debt investments carried at fair value through other comprehensive income, and • other financial assets carried at amortized cost. While cash equivalents are also subject to the impairment requirement, the identified impairment loss was immaterial. The maximum exposure to credit risk of the Group’s financial instruments without considering value of collaterals as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 December 31, 2020 Cash and cash equivalents (except for cash on hand) ₩ 2,226,608 ₩ 2,625,581 Trade and other receivables Financial assets at amortized costs 5,784,228 5,034,621 Financial assets at fair value through other comprehensive income 1,256,266 1,118,619 Contract assets 557,041 586,438 Other financial assets Derivatives financial assets for hedging 58,576 7,684 Financial assets at fair value through profit or loss 541,657 680,453 Financial assets at fair value through other comprehensive income 7,086 6,570 Financial assets at amortized costs 441,804 671,068 Total ₩ 10,873,266 ₩ 10,731,034 (i) Trade receivables and contract assets The Group applies the simplified approach to measuring expected credit losses which uses a lifetime expected loss allowance for all trade receivables and contract assets. The Group measures the expected credit loss by considering the future irrecoverability rate of the remaining balance of trade receivables and other receivables at the end of the reporting period. Each trade receivables and other receivables are classified considering the credit risk characteristics and overdue periods in order to measure expected credit loss. The expected credit loss rate calculation is based on historical payment and credit loss information in relation to revenue for 36 months period up to December 31, 2020. Expected credit loss of 12 months was applied as the credit sales and other credit-related assets of BC Card Co., Ltd., a subsidiary of the Group, has been determined to have low credit risk. (ii) Cash equivalents (except for cash on hand) The Group is also exposed to credit risk in relation cash equivalents. The maximum exposure at the end of the reporting period is the carrying amount of these investments. (iii) Other financial assets at amortized costs Other financial assets at amortized cost include time deposits, other long-term financial instruments and others. All of the financial assets at amortized costs are considered to have low credit risk, and the loss allowance recognized during the period was, therefore, limited to 12 months expected losses. Management consider ‘low credit risk’ for other instruments when they have a low risk of default and the issuer has a strong capacity to meet its contractual cash flow obligations in the near term. (iv) Financial assets at fair value through other comprehensive income All of the debt investments at fair value through other comprehensive income are considered to have low credit risk, and the loss allowance recognized during the period was, therefore, limited to 12 months expected losses. Management consider ‘low credit risk’ for other instruments when they have a low risk of default and the issuer has a strong capacity to meet its contractual cash flow obligations in the near term. The maximum exposure at the end of the reporting period is the carrying amount of these investments. (v) Financial assets at fair value through profit or loss The Group is also exposed to credit risk in relation to financial assets that are measured at fair value through profit or loss. The maximum exposure at the end of the reporting period is the carrying amount of these investments. 3) Liquidity risk The Group manages its liquidity risk by liquidity strategy and plans. The Group considers the maturity of financial assets and financial liabilities and the estimated cash flows from operations. The table below analyzes the Group’s liabilities (including interest expenses) into relevant maturity groups based on the remaining period at the date of the end of each reporting period to the contractual maturity date. These amounts are contractual undiscounted cash flows and can differ from the amount in the consolidated financial statements. December 31, 2019 (In millions of Korean won) Less than 1 year 1-5 More than Total Trade and other payables ₩ 8,149,445 ₩ 805,241 ₩ 370,044 ₩ 9,324,730 Borrowings(including debentures) 1,304,936 4,417,639 2,493,637 8,216,212 Lease liabilities 397,609 688,518 221,255 1,307,382 Other non-derivative 1,749 175,764 18,962 196,475 Financial guarantee contracts 1 19,422 — — 19,422 Total ₩ 9,873,161 ₩ 6,087,162 ₩ 3,103,898 ₩ 19,064,221 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, 2020 (In millions of Korean won) Less than 1 year 1-5 More than Total Trade and other payables ₩ 6,587,796 ₩ 730,758 ₩ 258,255 ₩ 7,576,809 Borrowings(including debentures) 1,573,944 4,373,534 2,258,360 8,205,838 Lease liabilities 336,024 658,501 190,907 1,185,432 Other non-derivative 574 131,242 — 131,816 Financial guarantee contracts 1 22,422 — — 22,422 Total ₩ 8,520,760 ₩ 5,894,035 ₩ 2,707,522 ₩ 17,122,317 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. Cash outflow and inflow of derivatives settled gross or net are undiscounted contractual cash flow and can differ from the amount in the consolidated financial statements. December 31, 2018 (In millions of Korean won) Less than 1 year 1-5 More than Total Outflow ₩ 455,343 ₩ 1,466,915 ₩ 517,301 ₩ 2,439,559 Inflow 484,505 1,492,718 519,133 2,496,356 December 31, 2019 (In millions of Korean won) Less than 1 year 1-5 More than Total Outflow ₩ 650,497 ₩ 1,602,513 ₩ 507,947 ₩ 2,760,957 Inflow 684,720 1,648,746 524,483 2,857,949 December 31, 2020 (In millions of Korean won) Less than 1 year 1-5 More than Total Outflow ₩ 248,300 ₩ 2,179,046 ₩ 498,619 ₩ 2,925,965 Inflow 249,301 2,074,747 480,570 2,804,618 (2) Management of Capital Risk The Group’s objectives when managing capital are to safeguard the Group’s ability to continue as a going concern in order to provide returns for shareholders and benefits for other shareholders and to maintain an optimal capital structure to reduce the cost of capital. The Group’s capital structure consists of liabilities including borrowings, cash and cash equivalents, and shareholders’ equity. The treasury department monitors the Group’s capital structure and considers cost of capital and risks related each capital component. The debt-to-equity (In millions of Korean won) December 31, 2019 December 31, 2020 Total liabilities ₩ 19,491,530 ₩ 18,111,112 Total equity 15,140,684 15,551,433 Debt-to-equity 129 % 116 % 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 at December 31, 2019 and 2020, are as follows: (In millions of Korean won, %) December 31, 2019 December 31, 2020 Total borrowings ₩ 7,298,867 ₩ 7,316,298 Less: cash and cash equivalents (2,305,894 ) (2,634,624 ) Net debt 4,992,973 4,681,674 Total equity 15,140,684 15,551,433 Total capital 20,133,657 20,233,107 Gearing ratio 25 % 23 % (3) Offsetting Financial Assets and Financial Liabilities 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, 2019 Gross Gross Net amounts position Amounts not offset Net Financial Cash Trade receivables ₩ 66,487 ₩ (1 ) ₩ 66,486 ₩ (63,604 ) ₩ — ₩ 2,882 Other financial assets 18,571 (13 ) 18,558 (18,526 ) — 32 ₩ 85,058 ₩ (14 ) ₩ 85,044 ₩ (82,130 ) ₩ — ₩ 2,914 (In millions of Korean won) December 31, 2020 Gross Gross Net amounts position Amounts not offset Net Financial Cash Trade receivables ₩ 71,497 ₩ (1 ) ₩ 71,496 ₩ (67,421 ) ₩ — ₩ 4,075 Netting arrangements with reference to the offers of telecommunication facility interconnection, sharing data, and others among telecommunication companies. 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, 2019 Gross Gross offset Net amounts position Amounts not offset Net Financial Cash Trade payables ₩ 65,669 ₩ (13 ) ₩ 65,656 ₩ (63,628 ) ₩ — ₩ 2,028 Other financial liabilities 18,509 (1 ) 18,508 (18,502 ) — 6 ₩ 84,178 ₩ (14 ) ₩ 84,164 ₩ (82,130 ) ₩ — ₩ 2,034 (In millions of Korean won) December 31, 2020 Gross Gross offset Net amounts position Amounts not offset Net Financial Cash Trade payables ₩ 69,361 ₩ — ₩ 69,361 ₩ (67,421 ) ₩ — ₩ 1,940 Other financial liabilities 1 (1 ) — — — — ₩ 69,362 ₩ (1 ) ₩ 69,361 ₩ (67,421 ) ₩ — ₩ 1,940 Netting arrangements with reference to the offers of telecommunication facility interconnection, sharing data, and others among telecommunication companies. |
Fair Value
Fair Value | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Fair Value | 37. Fair Value 37.1 Fair Value of Financial Instruments by Categor y Carrying amount and fair value of financial instruments by category as at December 31, 2019 and 2020, are as follows: December 31, 2019 December 31, 2020 (In millions of Korean won) Carrying Fair value Carrying Fair value Financial assets Cash and cash equivalents ₩ 2,305,894 1 ₩ 2,634,624 1 Trade and other receivables Financial assets measured at amortized cost 2 5,748,459 1 4,976,423 1 Financial assets at fair value through other comprehensive income 1,256,266 1,256,266 1,118,619 1,118,619 Other financial assets Financial assets measured at amortized cost 441,804 1 671,068 1 Financial assets at fair value through profit or loss 632,324 632,324 809,919 809,919 Financial assets at fair value through other comprehensive income 557,342 557,342 258,516 258,516 Derivative financial assets for hedging 58,576 58,576 7,684 7,684 Total ₩ 11,000,665 ₩ 10,476,853 Financial liabilities Trade and other payables ₩ 8,679,698 1 ₩ 7,017,639 1 Borrowings 7,298,867 1 7,316,298 1 Other financial liabilities Financial liabilities at amortized cost 129,945 1 132,558 1 Financial liabilities at fair value through profit or loss 38 38 2,682 2,682 Derivative financial liabilities for hedging 20,096 20,096 127,929 127,929 Total ₩ 16,128,644 ₩ 14,597,106 1 The Group did not conduct fair value estimation since the book amount is a reasonable approximation of the fair value 2 With the application of IFRS 7, lease receivables are excluded from fair value disclosure. 37.2 Fair Value Hierarchy To provide an indication about the reliability of the inputs used in determining fair value, the Group classifies its financial instruments into the three levels prescribed under the accounting standards. Financial instruments that are measured at fair value are categorized by the fair value hierarchy, and the defined levels are as follows: • Level 1: The fair value of financial instruments traded in active markets is based on quoted market prices at the end of the reporting period. The quoted market price used for financial assets held by the Group is the current bid price. These instruments are included in level 1. • Level 2: The fair value of financial instruments that are not traded in an active market is determined using valuation techniques which maximize the use of observable market data and rely as little as possible on entity-specific estimates. If all significant inputs required to fair value an instrument are observable, the instrument is included in level 2. • Level 3: If one or more of the significant inputs is not based on observable market data, the instrument is included in level 3. Fair value hierarchy classifications of the financial assets and financial liabilities that are measured at fair value or its fair value is disclosed as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 Level 1 Level 2 Level 3 Total Assets Trade and other receivables Financial assets at fair value through other comprehensive income ₩ — ₩ 1,256,266 ₩ — ₩ 1,256,266 Other financial assets Financial assets at fair value through profit or loss 232 136,951 495,141 632,324 Financial assets at fair value through other comprehensive income 6,738 508,550 42,054 557,342 Derivative financial assets for hedging — 40,788 17,788 58,576 Disclosed fair value Investment properties — — 2,304,583 2,304,583 Total ₩ 6,970 ₩ 1,942,555 ₩ 2,859,566 ₩ 4,809,091 Liabilities Other financial liabilities Financial liabilities at fair value through profit or loss ₩ — ₩ 38 ₩ — ₩ 38 Derivative financial liabilities for hedging — 20,096 — 20,096 Total ₩ — ₩ 20,134 ₩ — ₩ 20,134 (In millions of Korean won) December 31, 2020 Level 1 Level 2 Level 3 Total Assets Trade and other receivables Financial assets at fair value through other comprehensive income ₩ — ₩ 1,118,619 ₩ — ₩ 1,118,619 Other financial assets Financial assets at fair value through profit or loss 46,449 330,961 432,509 809,919 Financial assets at fair value through other comprehensive income 5,606 202,121 50,789 258,516 Derivative financial assets for hedging — 7,684 — 7,684 Disclosed fair value Investment properties — — 2,645,482 2,645,482 Total ₩ 52,055 ₩ 1,659,385 ₩ 3,128,780 ₩ 4,840,220 Liabilities Other financial liabilities Financial liabilities at fair value through profit or loss ₩ — ₩ 45 ₩ 2,637 ₩ 2,682 Derivative financial liabilities for hedging — 123,735 4,194 127,929 Total ₩ — ₩ 123,780 ₩ 6,831 ₩ 130,611 37.3 Transfers Between Fair Value Hierarchy Levels of Recurring Fair Value Measurements There are no transfers between Level 1 and Level 2 of the fair value hierarchy for the recurring fair value measurements. Details of changes in Level 3 of the fair value hierarchy for the recurring fair value measurements as at December 31, 2019 and 2020, are as follows: 2019 Financial assets Financial liabilities (In millions of Korean won) Financial assets Financial assets Derivative Financial Beginning balance ₩ 163,600 ₩ 311,536 ₩ (10,183 ) ₩ 7,758 Purchases 584,671 6,081 — — Reclassification 225,873 (444,782 ) — — Disposal (485,419 ) (941 ) — (9,734 ) Amount recognized in profit or loss 1,2 6,416 — 14,462 1,976 Amount recognized in other comprehensive income 1 — 170,160 13,509 — Ending balance ₩ 495,141 ₩ 42,054 ₩ 17,788 ₩ — 1 Amount recognized in profit or loss and other comprehensive income with respect to derivative financial liabilities for hedging comprises loss on valuation of derivative instruments. 2 Amount recognized in profit or loss with respect to financial liabilities at fair value through profit or loss comprises loss on valuation of derivative instruments. 2020 Financial assets Financial liabilities (In millions of Korean won) Financial assets Financial assets Financial Derivative Beginning balance ₩ 495,141 ₩ 42,054 ₩ — ₩ (17,788 ) Purchases 374,259 13,142 2,798 — Reclassification 208 — — — Disposal (451,663 ) (571 ) — — Amount recognized in profit or loss 1,2 14,564 (428 ) (161 ) 29,345 Amount recognized in other comprehensive income 1 — (3,408 ) — (7,363 ) Ending balance ₩ 432,509 ₩ 50,789 ₩ 2,637 ₩ 4,194 1 Amount recognized in profit or loss and other comprehensive income with respect to derivative financial liabilities for hedging comprises loss on valuation of derivative instruments. 2 Amount recognized in profit or loss with respect to financial liabilities at fair value through profit or loss comprises loss on valuation of derivative instruments. 37.4 Valuation Technique and the Inputs Valuation techniques and inputs used in the recurring, non-recurring December 31, 2019 (In millions of Korean won) Fair value Level Valuation techniques Assets Trade and other receivables Financial assets at fair value through other comprehensive income ₩ 1,256,266 2 DCF Model Other financial assets Financial assets at fair value through profit or loss 632,092 2,3 DCF Model, Adjusted net asset model Financial assets at fair value through other comprehensive income 550,604 2,3 DCF Model, Comparable Company Analysis Derivative financial assets for hedging 58,576 2,3 Hull-White model, DCF Model Investment properties 2,304,583 3 DCF Model Liabilities Other financial liabilities Financial liabilities at fair value through profit or loss ₩ 38 2 DCF Model Derivative financial liabilities for hedging 20,096 2 DCF Model December 31, 2020 (In millions of Korean won) Fair value Level Valuation techniques Assets Trade and other receivables Financial assets at fair value through other comprehensive income ₩ 1,118,619 2 DCF Model Other financial assets Financial assets at fair value through profit or loss 763,470 2,3 DCF Model, Adjusted net asset model Financial assets at fair value through other comprehensive income 252,910 2,3 DCF Model, Comparable Company Analysis Derivative financial assets for hedging 7,684 2 DCF Model Investment properties 2,645,482 3 DCF Model Liabilities Other financial liabilities Financial liabilities at fair value through profit or loss ₩ 2,682 2,3 DCF Model, Binomial Option Pricing Derivative financial liabilities for hedging 127,929 2,3 Hull-White model, DCF Model 37.5 Valuation Processes for Fair Value Measurements Categorized Within Level 3 The Group uses external experts that perform the fair value measurements required for financial reporting purposes. External experts report directly to the chief financial officer (CFO), and discusses valuation processes and results with the CFO in line with the Group’s reporting dates. 37.6 Gains and losses on valuation at the transaction dat e In the case that the Group values derivative financial instruments using inputs not based on observable market data, and the fair value calculated by the said valuation technique differs from the transaction price, then the fair value of the financial instruments is recognized as the transaction price. The difference between the fair value at initial recognition and the transaction price is deferred and amortized using a straight-line method by maturity of the financial instruments. However, in the case that inputs of the valuation techniques become observable in markets, the remaining deferred difference is immediately recognized in full in profit for the year. In relation to this, details and changes of the total deferred difference for the years ended December 31, 2019 and 2020, are as follows: 2019 2020 (In millions of Korean won) Derivatives used Derivative held Derivatives used Derivative held I. Beginning balance ₩ 5,107 ₩ (2,824 ) ₩ 3,682 ₩ — II. New transactions — — — — III. Recognized at fair value through profit or loss (1,425 ) 2,824 (1,425 ) — IV. Ending balance (I+II+III) ₩ 3,682 ₩ — ₩ 2,257 ₩ — |
Interests in Unconsolidated Str
Interests in Unconsolidated Structured Entities | 12 Months Ended |
Dec. 31, 2020 | |
Investments accounted for using equity method [abstract] | |
Interests in Unconsolidated Structured Entities | 38. Interests in Unconsolidated Structured Entities Details of information about its interests in unconsolidated structured entities, which the Group does not have control over, including the nature, purpose and activities of the structured entity and how the structured entity is financed, are as follows: Classes of entities Nature, purpose, activities and others Real estate finance A structured entity incorporated for the purpose of real estate development is provided with funds by investors’ investments in equity and borrowings from financial institutions (including long-term and short-term loans and issuance of Asset Backed Commercial Paper (“ABCP”) due in three months), and based on these, the structured entity implements activities such as real estate acquisition, development and mortgage loans. The structured entity repays loan principals with funds incurred from instalment house sales after the completion of real estate development or with collection of the principal of mortgage loan. The remaining shares are distributed to investors. As at December 31, 2020, this entity is engaged in real estate finance structured entity, and generates revenues by receiving dividends from direct investments in or receiving interests on loans to the structured entity. Financial institutions, including the Entity, are provided with guarantees including joint guarantees or real estate collateral from investors and others. Consequently, the entity is a priority over other parties in the preservation of claim. However, when the credit rating of investors and others decreases or when the value of real estate decreases, the entity may be obliged to cover losses. PEF and investment funds Minority investors including managing members contribute to Private Equity Fund (“PEF”) and investment funds incorporated for the purpose of providing funds to the small, medium, or venture entities, and the managing member implements activities such as investments in equity or loans based on the contributions. As at December 31, 2020, the entity is engaged in PEF and investment funds structured entity, and after contributing to PEF and investment funds, the entity receives dividends for operating revenues from these contributions. The entity is provided with underlying assets of PEF and investment funds as collateral. However, when the value of the underlying assets decreases, the entity may be obliged to cover losses. Asset securitization The Group transfers accounts receivable for handset sales to its Special Purpose Company (“SPC”) for asset securitization. SPC issues the asset-backed securities with accounts receivable for handset sales as an underlying asset, and makes payment for the underlying asset acquired. Details of scale of unconsolidated structured entities and nature of the risks associated with an entity’s interests in unconsolidated structured entities as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 Real Estate PEF and Asset Total Total assets of unconsolidated structured entities ₩ 1,595,895 ₩ 4,060,992 ₩ 2,562,931 ₩ 8,219,818 Assets recognized in statement of financial position Other financial assets ₩ 15,816 ₩ 100,496 ₩ — ₩ 116,312 Joint ventures and associates 8,542 192,022 — 200,564 Total ₩ 24,358 ₩ 292,518 ₩ — ₩ 316,876 Maximum loss exposure 1 Investment assets ₩ 24,358 ₩ 292,518 ₩ — ₩ 316,876 Total ₩ 24,358 ₩ 292,518 ₩ — ₩ 316,876 1 It includes the investments recognized in the Group’s consolidated financial statements and the amounts which are probable to be determined when certain conditions are met by agreements including purchase agreements, credit granting and others. December 31, 2020 (In millions of Korean won) Real Estate PEF and Asset Total Total assets of unconsolidated structured entities ₩ 2,004,869 ₩ 4,380,534 ₩ 2,152,412 ₩ 8,537,815 Assets recognized in statement of financial position Other financial assets ₩ 29,874 ₩ 128,332 ₩ — ₩ 158,206 Joint ventures and associates 51,607 219,753 — 271,360 Total ₩ 81,481 ₩ 348,085 ₩ — ₩ 429,566 Maximum loss exposure 1 Investment assets ₩ 81,481 ₩ 348,085 ₩ — ₩ 429,566 Cash deficiency support — 29,130 — 29,130 Total ₩ 81,481 ₩ 377,215 ₩ — ₩ 458,696 1 It includes the investments recognized in the Group’s consolidated financial statements and the amounts which are probable to be determined when certain conditions are met by agreements including purchase agreements, credit granting and others. |
Information About Non-controlli
Information About Non-controlling Interests | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Information About Non-controlling Interests | 39. Information About Non-controlling 39.1 Changes in Accumulated Non-controlling Profit or loss allocated to non-controlling non-controlling (In millions of Korean won) December 31, 2018 Non- Accumulated non-controlling Profit or loss non-controlling Dividend paid to non- controlling Others Accumulated non-controlling KT Skylife Co., Ltd. 49.7 % ₩ 328,302 ₩ 23,405 ₩ (8,279 ) ₩ 30,722 ₩ 374,150 BC Card Co., Ltd. 30.5 % 339,067 28,418 (35,924 ) 13,986 345,547 KT Powertel Co., Ltd. 55.2 % 53,053 (3,058 ) — 2,870 52,865 KT Hitel Co.,Ltd. 32.9 % 53,146 454 — (1,264 ) 52,336 KT Telecop Co., Ltd. 13.2 % 103,468 59 — (170 ) 103,357 (In millions of Korean won) December 31, 2019 Non- Accumulated non-controlling Profit or loss non-controlling Dividend to non- Others Accumulated non-controlling KT Skylife Co., Ltd. 49.7 % ₩ 374,150 ₩ 10,029 ₩ (8,279 ) ₩ 6 ₩ 375,906 BC Card Co., Ltd. 30.5 % 345,547 37,795 (18,900 ) 53,033 417,475 KT Powertel Co., Ltd. 55.2 % 52,865 1,751 — (340 ) 54,276 KT Hitel Co., Ltd. 32.9 % 52,336 1,720 — 653 54,709 KT Telecop Co., Ltd. 13.2 % 103,357 (588 ) — (99,119 ) 3,650 (In millions of Korean won) December 31, 2020 Non- Accumulated non-controlling Profit or loss non-controlling Dividend non- Others Accumulated non-controlling KT Skylife Co., Ltd. 49.7 % ₩ 375,906 ₩ 22,171 ₩ (8,279 ) ₩ (898 ) ₩ 388,900 BC Card Co., Ltd. 30.5 % 417,475 9,899 (22,787 ) 7,239 411,826 KT Powertel Co., Ltd. 55.2 % 54,276 2,151 (478 ) (202 ) 55,747 KT Hitel Co., Ltd. 32.9 % 54,709 (1,840 ) — (2,563 ) 50,306 KT Telecop Co., Ltd. 13.2 % 3,650 152 — (208 ) 3,594 39.2 Summarized Financial Information on Subsidiaries The summarized financial information for each subsidiary with non-controlling Summarized consolidated statements of financial position as at December 31, 2018, 2019 and 2020, are as follows: December 31, 2018 (In millions of Korean won) KT Skylife BC Card Co., KT Powertel KT Hitel KT Telecop Co., Ltd. Non-controlling 49.7 % 30.5 % 55.2 % 32.9 % 13.2 % Current assets ₩ 301,739 ₩ 2,997,429 ₩ 84,785 ₩ 161,162 ₩ 52,367 Non-current 514,263 724,950 39,279 111,546 220,125 Current liabilities 112,411 2,520,050 27,187 63,231 85,648 Non-current 37,430 110,486 1,030 2,812 54,666 Equity 666,161 1,091,843 95,847 206,665 132,178 Operating revenue 694,059 3,551,715 65,620 279,117 328,262 Profit or loss for the year 52,010 70,889 (5,545 ) 657 166 Total comprehensive income (loss) 47,787 116,604 (5,792 ) 738 (1,517 ) Cash flows from operating activities 183,474 86,299 11,603 43,855 40,351 Cash flows from investing activities (139,846 ) 128,538 (2,580 ) (26,335 ) (76,969 ) Cash flows from financing activities (77,647 ) (117,561 ) — — 10,000 Net increase (decrease) in cash and cash equivalents (34,019 ) 97,276 9,023 17,520 (26,618 ) Cash and cash equivalents at beginning of year 65,747 177,826 6,626 21,647 32,326 Exchange differences — (13 ) — 19 — Cash and cash equivalents at end of year 31,728 275,089 15,649 39,186 5,708 December 31, 2019 (In millions of Korean won) KT Skylife BC Card Co., KT Powertel KT Hitel KT Telecop Co., Ltd. Non-controlling 49.7 % 30.5 % 55.2 % 32.9 % 13.2 % Current assets ₩ 459,077 ₩ 2,580,634 ₩ 86,465 ₩ 115,694 ₩ 55,908 Non-current 389,199 1,332,348 31,587 164,124 223,969 Current liabilities 123,506 2,452,219 17,757 62,378 64,218 Non-current 19,333 142,013 2,009 12,391 89,622 Equity 705,437 1,318,750 98,286 205,049 126,037 Operating revenue 704,996 3,553,008 62,846 323,065 332,063 Profit or loss for the year 56,008 115,885 3,085 1,426 (4,875 ) Total comprehensive income (loss) 55,936 289,122 2,469 (1,840 ) (6,558 ) Cash flows from operating activities 152,549 429,331 780 49,870 52,693 Cash flows from investing activities (101,594 ) (419,894 ) (9,525 ) (50,138 ) (44,393 ) Cash flows from financing activities (18,833 ) (5,744 ) (687 ) (1,860 ) (5,227 ) Net increase (decrease) in cash and cash equivalents 32,122 3,693 (9,432 ) (2,128 ) 3,073 Cash and cash equivalents at beginning of year 31,728 275,089 15,649 39,186 5,708 Exchange differences — 380 — (15 ) — Cash and cash equivalents at end of year 63,850 279,162 6,217 37,043 8,781 December 31, 2020 (In millions of Korean won) KT Skylife BC Card Co., KT Powertel KT Hitel KT Telecop Co., Ltd. Non-controlling 49.7 % 30.5 % 55.2 % 32.9 % 13.2 % Current assets ₩ 480,450 ₩ 1,785,914 ₩ 90,056 ₩ 140,948 ₩ 79,076 Non-current 439,026 1,298,484 29,638 148,001 239,380 Current liabilities 153,236 1,602,667 17,045 74,045 136,565 Non-current 21,803 176,083 1,788 18,554 57,172 Equity 744,437 1,305,648 100,861 196,350 124,719 Operating revenue 706,631 3,387,641 65,898 350,231 392,489 Profit or loss for the year 58,190 39,455 3,809 2,080 212 Total comprehensive income (loss) 55,647 61,796 3,442 (8,700 ) (1,319 ) Cash flows from operating activities 160,934 (119,163 ) 6,011 62,521 35,834 Cash flows from investing activities (105,293 ) 58,042 (3,353 ) (58,186 ) (57,976 ) Cash flows from financing activities (19,650 ) 22,790 (1,515 ) (1,856 ) 14,652 Net increase (decrease) in cash and cash equivalents 35,991 (38,331 ) 1,143 2,479 (7,490 ) Cash and cash equivalents at beginning of year 63,850 279,162 6,217 37,043 8,781 Exchange differences (7 ) (247 ) — (83 ) — Cash and cash equivalents at end of year 99,834 240,584 7,360 39,439 1,29 1 39.3 Transactions with Non-controlling The effect of changes in the ownership interest on the equity attributable to owners of the Group during 2018, 2019 and 2020 is summarized as follows: (In millions of Korean won) 2018 2019 2020 Carrying amount of non-controlling ₩ (194 ) ₩ (9,566 ) ₩ 1,750 Consideration paid to non-controlling 11,312 484 9,878 Excess of consideration paid recognized in parent’s equity ₩ 11,118 ₩ (9,082 ) ₩ 11,628 |
Business Combination
Business Combination | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Business Combination | 40. Business Combination On April 30, 2020, the Controlling Company acquired 1,400,000 shares (59.8%) of KT Engineering Co., Ltd. (formerly KT ENG Core) and 940,000 shares (40.2%) of KT Estate, a subsidiary of the Group, to cultivate an engineering company in the group through early normalization and termination of corporate rehabilitation of KT Engineering Co., Ltd. (formerly KT ENG Core). Through these transactions, KT Engineering Co., Ltd. (formerly KT ENG Core Co., Ltd.) was included as a subsidiary, and it was accounted for in accordance with IFRS 3 Business Combinations . As a result of applying the acquisition method, identifiable intangible assets of ₩ ₩ As of the acquisition date of control, the total consideration transferred, the recognized amount of assets acquired and liabilities acquired by major types, and calculation details of goodwill are as follows: (In millions of Korean won) Amount Total transfer cost (a) ₩ 46,800 Recognized amount of assets acquired and liabilities assumed (b) 1 46,393 Cash and cash equivalents 57,845 Trade and other receivable 95,814 Other financial assets 3,110 Other assets 14,021 Inventories 1,521 Property and equipment 3,128 Intangible assets 410 Trade and other payables (105,964 ) Other liabilities (4,815 ) Current income tax liabilities (3,664 ) Other provisions (13,745 ) Retirement benefit liabilities (1,268 ) Goodwill (a-b) ₩ 407 1 Assets acquired and liabilities acquired in accordance with IFRS 3 Business Combinations As at December 31, 2020, goodwill is subject to change as the underwriting results of fair value valuation of identifiable asset liabilities for allocation of consideration has not been confirmed. After the acquisition of control, operating income included in the consolidated statement before the removal of intercompany transactions is ₩ ₩ ₩ ₩ |
Changes in Accounting Policies
Changes in Accounting Policies - Determination of Lease Term Considering Economic Penalty | 12 Months Ended |
Dec. 31, 2020 | |
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Changes in Accounting Policies - Determination of Lease Term Considering Economic Penalty | 41. Changes in Accounting Policies – Determination of Lease Term Considering Economic Penalt y From January 1, 2020, the Group has changed its accounting policy by adopting accounting treatments in accordance with agenda decisions for ‘Lease Term and Useful Life of Leasehold Improvements’ issued by IFRS Interpretations Committee on December 16, 2019. The Group determines the lease term as the non-cancellable Accounting Policies, Changes in Accounting Estimates and Errors In relation to the changes in accounting policy, the adjusted amounts recognized in each line item in the consolidated financial statements are as follows: Consolidated Statements of Financial Position December 31, 2019 December 31, 2020 (In millions of Korean won) Previously Adjustment Adjusted Amount based Adjustment Amount based Current assets Prepaid expenses ₩ 76,036 ₩ (1,026 ) ₩ 75,010 ₩ 61,930 ₩ (2,119 ) ₩ 59,811 Non-current Right-of-use 788,497 479,832 1,268,329 585,034 632,145 1,217,179 Current liabilities Lease liabilities ₩ 355,833 ₩ 36,600 ₩ 392,433 ₩ 281,961 ₩ 63,263 ₩ 345,224 Non-current Lease liabilities 373,307 445,612 818,919 231,884 566,532 798,416 Total liabilities ₩ 729,140 ₩ 482,212 ₩ 1,211,352 ₩ 513,845 ₩ 629,795 ₩ 1,143,640 Net assets Retained earnings ₩ 11,594,322 ₩ (3,406 ) ₩ 11,590,916 ₩ 12,155,188 ₩ 232 ₩ 12,155,420 Total equity ₩ 11,594,322 ₩ (3,406 ) ₩ 11,590,916 ₩ 12,155,188 ₩ 232 ₩ 12,155,420 Consolidated Statements of Operations 2019 2020 (In millions of Korean won) Previously Adjustment Adjusted Amount Adjustment Amount Operating revenue ₩ 24,899,189 ₩ — ₩ 24,899,189 ₩ 24,434,851 ₩ 5,796 ₩ 24,440,647 Operating expenses 23,879,015 (6,796 ) 23,872,219 23,425,377 (7,063 ) 23,418,314 Finance income 424,395 — 424,395 498,614 — 498,614 Finance costs 421,931 10,202 432,133 498,161 9,222 507,383 Income tax expense 320,060 — 320,060 285,349 — 285,349 Profit for the year 699,274 (3,406 ) 695,868 742,619 3,637 746,256 Basic earnings per share 2,648 (14 ) 2,634 2,843 15 2,858 Diluted earnings per share 2,646 (14 ) 2,632 2,840 18 2,858 With the initial adoption of IFRS Lease , right-of-use assets and lease liabilities increased by ₩ million and ₩ million, respectively, as at January , . In consideration of the economic penalties to be incurred from the contractual obligations, changes in accounting policy in relation to lease term resulted in an additional increase to the beginning balance of right-of-use assets and lease liabilities, by the amount of ₩ million and ₩ million, respectively, for the year as at January , (Note . |
Events after Reporting Period
Events after Reporting Period | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Events after Reporting Period | 42. Events After Reporting Period The Group has issued the following bonds since the end of the reporting period . Type Issued date Face value (In millions Interest Redemption The 194-1st Jan. 27, 2021 ₩ 130,000 1.13 % Jan. 26, 2024 The 194-2nd Jan. 27, 2021 140,000 1.45 % Jan. 27, 2026 The 194-3rd Jan. 27, 2021 50,000 1.85 % Jan. 27, 2031 The 194-4th Jan. 27, 2021 80,000 1.98 % Jan. 25, 2041 |
Significant Accounting Polici_2
Significant Accounting Policies (Policies) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Basis of Preparation | 2.1 Basis of Preparation The consolidated financial statements of the Group have been prepared in accordance with International Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standards Board (“IASB”). The financial statements have been prepared on a historical cost basis, except for the following: • Certain financial assets and liabilities (including derivative instruments) – measured at fair value • Assets held-for-sale • Defined benefit pension plans – plan assets measured at fair value The preparation of the consolidated financial statements requires the use of certain critical accounting estimates. It also requires management to exercise judgment in the process of applying the Group’s accounting policies. The areas involving a higher degree of judgment or complexity, or areas where assumptions and estimates are significant to the consolidated financial statements are disclosed in Note 3. |
Changes in Accounting Policy and Disclosures | 2.2 Changes in Accounting Policy and Disclosures (1) New and amended standards adopted by the Group The Group has applied the following standards and amendments for the first time for their annual reporting period commencing January 1, 2020. - Amendments to IAS 1 Presentation of Financial Statements Accounting policies, changes in accounting estimates and errors – Definition of Material The amendments clarify the definition of material. Information is material if omitting, misstating or obscuring it could reasonably be expected to influence the decisions that the primary users of general-purpose financial statements make on the basis of those financial statements. The amendments do not have a significant impact on the consolidated financial statements. - Amendments to IFRS 3 Business Combination – Definition of a Business The amended definition of a business requires an acquisition to include an input and a substantive process that together significantly contribute to the ability to create outputs and the definition of output excludes the returns in the form of lower costs and other economic benefits. If substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or group of similar identifiable assets, an entity may elect to apply an optional concentration test that permits a simplified assessment of whether an acquired set of activities and assets is not a business. The amendments do not have a significant impact on the consolidated financial statements. - Amendments to IFRS 9 Financial Instruments Financial Instruments: Recognition and Measurement Financial Instruments: Disclosure – Interest Rate Benchmark Reform The amendments allow to apply the exceptions when forward-looking analysis is performed in relation the application of hedge accounting, while uncertainties arising from interest rate benchmark reform exist. The exceptions require the Group assumes that the interest rate benchmark, on which the hedged items and the hedging instruments are based on, is not altered as a result of interest rate benchmark reform, when determining whether the expected cash flows are highly probable, whether an economic relationship between the hedged item and the hedging instrument exists, and when assessing the hedging relationship is highly effective. The Group’s risk exposure, directly affected by the interest rate benchmark reform, is the variable rate borrowings of USD 519,598,989 and SGD 284,000,000 with maximum remaining maturity of four years. To hedge fluctuations in cash flows of borrowings resulting from the changes in USD LIBOR of 3 months and SGD SOR of 6 months—an interest rate benchmark, the Group entered into an interest rate swap contract for a nominal amount of USD 519,598,989 and SGD 284,000,000 and designated it as a hedging instrument of cash flow hedge. - Agenda Decision of the International Accounting Standards Interpretations Committee – Lease Period The IFRS Interpretations Committee (IFRS IC) announced on December 16, 2019 that all economic penalties resulting from the termination of a lease are taken into account when determining the enforceable period for ‘Lease Term and Useful Life of Leasehold Improvements’. The Group’s changes in accounting policy have been adopted retrospectively in accordance with IAS 8 Accounting Policies, Changes in Accounting Estimates and Errors (2) New standards and interpretations not yet adopted by the Group The following new accounting standards and interpretations have been published that are not mandatory for December 31, 2020 reporting periods and have not been early adopted by the Group. - Amendments to IFRS 16 Lease – Practical expedient for COVID-19—Related As a practical expedient, a lessee may elect not to assess whether a rent concession occurring as a direct consequence of the COVID-19 - Amendments to IFRS 9 Financial Instruments, Financial Instruments: Recognition and Measurement, Financial Instruments: Disclosure, Insurance Contracts Lease – Interest Rate Benchmark Reform In relation to interest rate benchmark reform, the amendments provide exceptions including adjust effective interest rate instead of book amounts when interest rate benchmark of financial instruments at amortized costs is replaced, and apply hedge accounting without discontinuance although the interest rate benchmark is replaced in hedging relationship. The amendments should be applied for annual periods beginning on or after January 1, 2021, and earlier application is permitted. The Group is in review for the impact of these amendments on the financial statements. - Amendments to IFRS 3 Business Combination – Reference to the Conceptual Framework The amendments update a reference of definition of assets and liabilities qualify for recognition in revised Conceptual Framework for Financial Reporting. However, the amendments add an exception for the recognition of liabilities and contingent liabilities within the scope of IAS 37 Provisions, Contingent Liabilities and Contingent Assets Levies - Amendments to IAS 16 Property, Plant and Equipment—Proceeds Before Intended Use The amendments prohibit an entity from deducting from the cost of an item of property, plant and equipment any proceeds from selling items produced while the entity is preparing the asset for its intended use. Instead, the entity will recognize the proceeds from selling such items, and the costs of producing those items, in profit or loss. The amendments should be applied for annual periods beginning on or after January 1, 2022, and earlier application is permitted. The Group is in review for the impact of these amendments on the financial statements. - Amendments to IAS 37 Provisions, Contingent Liabilities and Contingent Assets—Onerous Contracts: Cost of Fulfilling a Contract The amendments clarify that the direct costs of fulfilling a contract include both the incremental costs of fulfilling the contract and an allocation of other costs directly related to fulfilling contracts when assessing whether the contract is onerous. The amendments should be applied for annual periods beginning on or after January 1, 2022, and earlier application is permitted. The Group does not expect that these amendments have a significant impact on the financial statements. - Annual improvements to IFRS 2018-2020 Annual improvements of IFRS 2018-2020 Cycle should be applied for annual periods beginning on or after January 1, 2022, and earlier application is permitted. The Group does not expect that these amendments have a significant impact on the financial statements. • IFRS 1 First time Adoption of Korean International Financial Reporting Standards • IFRS 9 Financial Instruments • IFRS 16 Leases • IAS 41 Agricultur - Amendments to IAS 1 Presentation of Financial Statements—Classification of Liabilities as Current or Non-Current The amendments clarify that liabilities are classified as either current or non-current, |
Consolidation | 2.3 Consolidation The Group has prepared the consolidated financial statements in accordance with IFRS 10 Consolidated Financial Statements (1) Subsidiaries Subsidiaries are all entities (including special purpose entities (“SPEs”)) over which the Group has control. The Group controls an entity when the Group is exposed to, or has rights to, variable returns from its involvement with the entity and has the ability to affect those returns through its power to direct the activities of the entity. Subsidiaries are fully consolidated from the date on which control is transferred to the Group. They are deconsolidated from the date that control ceases. The acquisition method of accounting is used to account for business combinations by the Group. The consideration transferred is measured at the fair values of the assets transferred, and identifiable assets acquired and liabilities and contingent liabilities assumed in a business combination are measured initially at their fair values at the acquisition date. The Group recognizes any non-controlling acquisition-by-acquisition non-controlling non-controlling The excess of consideration transferred, amount of any non-controlling Intercompany transactions, balances and unrealized gains on transactions between group companies are eliminated. Unrealized losses are also eliminated unless the transaction provides evidence of an impairment of the transferred asset. Accounting policies of subsidiaries have been changed where necessary to ensure consistency with the policies adopted by the Group. (2) Changes in ownership interests in subsidiaries without change of control Any difference between the amount of the adjustment to non-controlling (3) Disposal of subsidiaries When the Group ceases to consolidate for a subsidiary because of a loss of control, any retained interest in the subsidiary is remeasured to its fair value with the change in carrying amount recognized in profit or loss. (4) Associates Associates are entities over which the Group has significant influence but does not possess control or joint control. Investments in associates are accounted for using the equity method of accounting, after initially being recognized at cost. Unrealized gains on transactions between the Group and its associates are eliminated to the extent of the Group’s interest in the associates. If the Group’s share of losses of an associate equals or exceeds its interest in the associate (including long-term interests that, in substance, form part of the Group’s net investment in the associate), the Group discontinues recognizing its share of further losses. After the Group’s interest is reduced to zero, additional losses are provided for, and a liability is recognized, only to the extent that the Group has incurred legal or constructive obligations or made payments on behalf of the associate. If there is an objective evidence of impairment for the investment in the associate, the Group recognizes the difference between the recoverable amount of the associate and its book amount as impairment loss. If an associate uses accounting policies other than those of the Group for transactions and events in similar circumstances, if necessary, adjustments shall be made to make the associate’s accounting policies conform to those of the Group when the associate’s financial statements are used by the Group in applying the equity method. (5) Joint arrangement A joint arrangement, wherein two or more parties have joint control, is classified as either a joint operation or a joint venture. A joint operator recognizes its direct right to the assets, liabilities, revenues and expenses of joint operations and its share of any jointly held or incurred assets, liabilities, revenues and expenses. A joint venture has rights to the net assets relating to the joint venture and accounts for that investment using the equity method. |
Segment Reporting | 2.4 Segment Reporting Information of each operating segment is reported in a manner consistent with the business segment reporting provided to the chief operating decision-maker (Note 34). The chief operating decision-maker is responsible for allocating resources and assessing performance of the operating segments. |
Foreign Currency Translation | 2.5 Foreign Currency Translation (1) Functional and presentation currency Items included in the financial statements of each of the Group’s entities are measured using the currency of the primary economic environment in which each entity operates (the “functional currency”). The consolidated financial statements are presented in Korean won, which is the Parent Company’s functional and presentation currency. (2) Transactions and balances Foreign currency transactions are translated into the functional currency using the exchange rates at the dates of the transactions. Foreign exchange gains and losses resulting from the settlement of such transactions and from the translation of monetary assets and liabilities denominated in foreign currencies at year end exchange rates are generally recognized in profit or loss. They are deferred in other comprehensive income if they relate to qualifying cash flow hedges and qualifying effective portion of net investment hedges, or are attributable to monetary part of the net investment in a foreign operation. Foreign exchange gains and losses that relate to borrowings are presented in the consolidated statements of operations, within finance costs. All other foreign exchange gains and losses are presented in the consolidated statements of operations within operating revenue or operating expenses. Non-monetary non-monetary non-monetary (3) Translation to the presentation currency The results and financial position of foreign operations that have a functional currency different from the presentation currency are translated into the presentation currency as follows: • assets and liabilities for each statement of financial position presented are translated at the closing rate at the end of the reporting period, • income and expenses for each consolidated statements of operations are translated at average exchange rates for the period, • equity is translated at the historical exchange rate, and • all resulting exchange differences are recognized in other comprehensive income. |
Cash and Cash Equivalents | 2.6 Cash and cash equivalents Cash and cash equivalents comprise cash balances, call deposits and investment securities with maturities of three months or less from the acquisition date that are easily convertible to cash and subject to an insignificant risk of changes in their fair value. |
Financial Assets | 2.7 Financial Assets The Group has applied IFRS 9 Financial Instruments, on January 1, 2018, the date of initial application. In accordance with the transitional provisions in IFRS 9, the Group recorded the cumulative effect as at the date of the initial application of the standards as an adjustment to the initial balance in the retained earnings. (1) Classification The Group classifies its financial assets in the following measurement categories: • those to be measured at fair value through profit or loss • those to be measured at fair value through other comprehensive income, and • those to be measured at amortized cost. The classification depends on the Group’s business model for managing the financial assets and the contractual terms of the cash flows. For financial assets measured at fair value, gains and losses will either be recorded in profit or loss or other comprehensive income. For investments in debt instruments, this will depend on the business model in which the investment is held. The Group reclassifies debt investments when, and only when its business model for managing those assets changes. For investments in equity instruments that are not held for trading, this will depend on whether the Group has made an irrevocable election at the time of initial recognition to account for the equity investment at fair value through other comprehensive income. Changes in fair value of the investments in equity instruments that are not accounted for as other comprehensive income are recognized in profit or loss. (2) Measurement At initial recognition, the Group measures a financial asset at its fair value plus, in the case of a financial asset not at fair value through profit or loss, transaction costs that are directly attributable to the acquisition of the financial asset. Transaction costs of financial assets carried at fair value through profit or loss are expensed in profit or loss. Hybrid (combined) contracts with embedded derivatives are considered in their entirety when determining whether their cash flows are solely payment of principal and interest. A. Debt instruments Subsequent measurement of debt instruments depends on the Group’s business model for managing the asset and the cash flow characteristics of the asset. The Group classifies its debt instruments into one of the following three measurement categories: • Amortized cost: Assets that are held for collection of contractual cash flows where those cash flows represent solely payments of principal and interest are measured at amortized cost. A gain or loss on a debt investment that is subsequently measured at amortized cost and is not part of a hedging relationship is recognized in profit or loss when the asset is derecognized or impaired. Interest income from these financial assets is included in ‘finance income’ using the effective interest rate method. • Fair value through other comprehensive income: Assets that are held for collection of contractual cash flows and for selling the financial assets, where the assets’ cash flows represent solely payments of principal and interest, are measured at fair value through other comprehensive income. Movements in the carrying amount are taken through other comprehensive income, except for the recognition of impairment loss (and reversal of impairment loss), interest income and foreign exchange gains and losses which are recognized in profit or loss. When the financial asset is derecognized, the cumulative gain or loss previously recognized in other comprehensive income is reclassified from equity to profit or loss. Interest income from these financial assets is included in ‘finance income’ using the effective interest rate method. Foreign exchange gains and losses are presented in ‘finance income or finance costs’ and impairment loss in ‘finance costs or operating expenses’. • Fair value through profit or loss: Assets that do not meet the criteria for amortized cost or fair value through other comprehensive income are measured at fair value through profit or loss. A gain or loss on a debt investment that is subsequently measured at fair value through profit or loss and is not part of a hedging relationship is recognized in profit or loss and presented net in the consolidated statements of operations within ‘finance income or finance costs’ in the period in which it arises. B. Equity instruments The Group subsequently measures all equity investments at fair value. Where the Group’s management has elected to present fair value gains and losses on equity investments in other comprehensive income, there is no subsequent reclassification of fair value gains and losses to profit or loss following the derecognition of the investment. Dividends from such investments continue to be recognized in profit or loss as ‘finance income’ when the Group’s right to receive payments is established. Changes in the fair value of financial assets at fair value through profit or loss are recognized in ‘finance income or finance costs’ in the consolidated statements of operations as applicable. Impairment loss (and reversal of impairment loss) on equity investments measured at fair value through other comprehensive income are not reported separately from other changes in fair value. (3) Impairment The Group assesses on a forward looking basis the expected credit losses associated with its debt instruments carried at amortized cost and fair value through other comprehensive income. The impairment methodology applied depends on whether there has been a significant increase in credit risk. For trade receivables and lease receivables, the Group applies the simplified approach, which requires expected lifetime credit losses to be recognized from initial recognition of the receivables. (4) Recognition and Derecognition Regular way purchases and sales of financial assets are recognized or derecognized on trade-date, the date on which the Group commits to purchase or sell the asset. Financial assets are derecognized when the rights to receive cash flows from the financial assets have expired or have been transferred and the Group has transferred substantially all the risks and rewards of ownership. If a transfer does not result in derecognition because the Group has retained substantially all the risks and rewards of ownership of the transferred asset, the Group continues to recognize the transferred asset in its entirety and recognizes a financial liability for the consideration received. (5) Offsetting of financial instruments Financial assets and liabilities are offset and the net amount reported in the statements of financial position where there is a legally enforceable right to offset the recognized amounts and there is an intention to settle on a net basis or realize the assets and settle the liability simultaneously. The legally enforceable right must not be contingent on future events and must be enforceable in the normal course of business and in the event of default, insolvency or bankruptcy of the Group or the counterparty. |
Derivative Instruments | 2.8 Derivative Instruments Derivatives are initially recognized at fair value on the date a derivative contract is entered into and are subsequently remeasured to their fair value at the end of each reporting period. The accounting for subsequent changes in fair value depends on whether the derivative is designated as a hedging instrument, and if so, the nature of the item being hedged. The Group has hedge relationships and designates certain derivatives as: • hedges of a particular risk associated with the cash flows of recognized assets and liabilities and highly probable forecast transactions (cash flow hedges) At inception of the hedge relationship, the Group documents the economic relationship between hedging instruments and hedged items including whether changes in the cash flows of the hedging instruments are expected to offset changes in the cash flows of hedged items. The fair values of derivative financial instruments designated in hedge relationships are disclosed in Note 37. The full fair value of a hedging derivative is classified as a non-current non-derivative non-derivative non-current The effective portion of changes in fair value of derivatives that are designated and qualify as cash flow hedges is recognized in the cash flow hedge reserve within equity, and the ineffective portion is recognized in ‘finance income (costs)’. Amounts of changes in fair value of effective hedging instruments accumulated in equity are recognized as ‘finance income (costs)’ for the periods when the corresponding transactions affect profit or loss. When a hedging instrument expires, or is sold, terminated, exercised, or when a hedge no longer meets the criteria for hedge accounting, any accumulated cash flow hedge reserve at that time remains in equity until the forecast transaction occurs, resulting in the recognition of a non-financial |
Trade Receivables | 2.9 Trade Receivable s Trade receivables are recognized initially at the amount of consideration that is unconditional, unless they contain significant financing components when they are recognized at fair value. Trade receivables are subsequently measured at amortized cost using the effective interest method, less loss allowance. See Note 6 for further information about the Group’s accounting for trade receivables and Note 2. 7 |
Inventories | 2.10 Inventories Inventories are stated at the lower of cost and net realizable value. Cost is determined using the moving average method, except for inventories in-tran s . |
Assets (or Disposal Group) Held-for-sale | 2.1 1 Assets (or Disposal Group) Held-for-sale Assets(or disposal group) are classified as assets held for sale when their carrying amount will be recovered principally through a sale transaction rather than through continued use and when a sale is considered highly probable. The assets are measured at the lower amount between their carrying amount and the fair value less selling costs. |
Property and Equipment | 2.1 2 Property and Equipment Property and equipment are stated at historical cost less accumulated depreciation and accumulated impairment losses. Historical cost includes expenditures that are directly attributable to the acquisition of the items. Depreciation of all property and equipment, except for land, is calculated using the straight-line method to allocate their cost, net of their residual values, over their estimated useful lives as follows: Estimated Useful Life Buildings 5 – 40 years Structures 5 – 40 years Machinery and equipment (Telecommunications equipment and others) 2 – 40 years Others Vehicles 4 – 6 years Tools 4 – 6 years Office equipment 2 – 6 years The depreciation method, residual values and useful lives of property and equipment are reviewed at the end of each reporting period and, if appropriate, accounted for as changes in accounting estimates. |
Investment Property | 2.13 Investment Property Investment property is a property held to earn rentals or for capital appreciation. An investment property is measured initially at its cost. After recognition as an asset, investment property is carried at cost less accumulated depreciation and impairment losses. Investment property, except for land, is depreciated using the straight-line method over their useful lives from 10 to 40 years. |
Intangible Assets | 2.14 Intangible Assets (1) Goodwill Goodwill is measured as explained in Note 2.3 (1) and goodwill arising from acquisition of subsidiaries and business are included in intangible assets. Goodwill is tested at least annually for impairment and carried at cost less accumulated impairment losses. Gains and losses on the disposal of subsidiaries and business include the carrying amount of goodwill relating to the subsidiaries and business sold. For the purpose of impairment testing, goodwill acquired in a business combination is allocated to each of the CGUs, or group of CGUs, that is expected to benefit from the synergies of the combination. Goodwill is monitored at the operating segment level. Goodwill impairment reviews are undertaken at least annually or more frequently if events or changes in circumstances indicate a potential impairment. The carrying amount of goodwill is compared to the recoverable amount, which is the higher of value in use and the fair value less costs to sell. Any impairment is recognized immediately as an expense and is not subsequently reversed. (2) Intangible assets except goodwill Intangible assets, except for goodwill, are initially recognized at its historical cost, and carried at cost less accumulated amortization and accumulated impairment losses. Membership rights (condominium membership and golf membership) that have an indefinite useful life are not subject to amortization because there is no foreseeable limit to the period over which the assets are expected to be utilized. The Group amortizes intangible assets with a limited useful life using the straight-line method over the following periods: Estimated Useful Life Development costs 5 – 6 years Software 4 – 6 years Frequency usage rights 5 – 10 years Others 1 1 – 50 years 1 Membership rights (condominium membership and golf membership) and broadcast license included in others are classified as intangible assets with indefinite useful life. |
Borrowing Costs | 2.15 Borrowing Costs General and specific borrowing costs that are directly attributable to the acquisition, construction or production of a qualifying asset are capitalized during the period of time that is required to complete and prepare the asset for its intended use or sale. Investment income earned on the temporary investment of specific borrowings pending their expenditure on qualifying assets is deducted from the borrowing costs eligible for capitalization. Other borrowing costs are expensed in the period in which they are incurred. |
Government Grants | 2.16 Government Grants Grants from the government are recognized at their fair value where there is a reasonable assurance that the grant will be received and the Group will comply with all attached conditions. Government grants related to assets are presented in the statement of financial position by setting up the grant as deferred income that is recognized in profit or loss on a systematic basis over the useful life of the asset. Grants related to income are presented as a credit in the consolidated statements of operations. |
Impairment of Non-Financial Assets | 2.17 Impairment of Non-Financial Goodwill and intangible assets with indefinite useful life are tested at least annually for impairment at the end of each reporting period. If certain assets are deemed to be impaired, their recoverable amount is estimated in order to determine the impairment loss. The Group estimates the recoverable amount for each asset, and in cases when the recoverable amount cannot be estimated for an asset, the recoverable amount of the cash generating unit to which the asset belongs is estimated. Corporate assets are allocated to individual cash generating units on a reasonable and consistent basis and if they cannot be allocated to individual cash generating units, they are allocated to the smallest group of cash generating units on a reasonable and consistent basis. An impairment loss is recognized for the amount by which the asset’s carrying amount exceeds its recoverable amount (higher of its fair value less costs of disposal and value in use). Impairment loss on non-financial |
Trade and other payables | 2.1 8 Trade and other payables These amounts represent liabilities for goods and services provided to the Group prior to the end of reporting period which are unpaid. Trade and other payables are presented as current liabilities, unless payment is not due within 12 months after the reporting period. They are recognized initially at their fair value and subsequently measured at amortized cost using the effective interest method. |
Financial Liabilities | 2.1 9 Financial Liabilities (1) Classification and measurement The Group’s financial liabilities measured at fair value through profit or loss are financial instruments held for trading. A financial liability is held for trading if it is incurred principally for the purpose of repurchasing in the near term. Derivatives that are not designated as hedging instruments or derivatives separated from financial instruments containing embedded derivatives are also categorized as held for trading. All non-derivative • Financial liabilities at fair value through profit or loss • Financial guarantee contract • Financial liabilities arising when the transfer of financial assets does not meet the elimination conditions Financial liabilities measured at amortized cost are displayed in the statement of financial position as ‘Trade and other payables’, ‘Borrowings’ and ‘Other financial liabilities’. Preferred shares that require mandatory redemption at a particular date are classified as liabilities. Interest expenses on these preferred shares using the effective interest method are recognized in the consolidated statements of operations as ‘finance costs’, together with interest expenses recognized from other financial liabilities. (2) Derecognition Financial liabilities are removed from the statement of financial position when they are extinguished; for example, when the obligation specified in the contract is discharged or cancelled or expired or when the terms of an existing financial liability are substantially modified. The difference between the carrying amount of a financial liability extinguished or transferred to another party and the consideration paid (including any non-cash |
Financial Guarantee Contracts | 2.20 Financial Guarantee Contracts Financial guarantee contracts are recognized as a financial liability at the time the guarantee is issued. The liability is initially measured at fair value, subsequently at the higher of following and recognized in the statement of financial position within ‘other financial liabilities’. • the amount determined in accordance with the expected credit loss model under IFRS 9 Financial Instruments • the amount initially recognized less, where appropriate, the cumulative amount of income recognized in accordance with IFRS 15 Revenue from Contracts with Customers |
Employee Benefits | 2. 21 Employee Benefits (1) Post-employment benefits The Group operates both defined contribution and defined benefit pension plans. A defined contribution plan is a pension plan under which the Group pays fixed contributions into a separate entity. The contributions are recognized as employee benefit expenses when an employee has rendered service. A defined benefit plan is a pension plan that is not a defined contribution plan. Generally, post-employment benefits are payable after the completion of employment, and the benefit amount depended on the employee’s age, periods of service or salary levels. The liability recognized in the statement of financial position in respect of defined benefit pension plans is the present value of the defined benefit obligation at the end of the reporting period less the fair value of plan assets. The defined benefit obligation is calculated at least annually by independent actuaries using the projected unit credit method. The present value of the defined benefit obligation is determined by discounting the estimated future cash outflows using interest rates of high-quality corporate bonds that are denominated in the currency in which the benefits will be paid, and that have terms approximating to the terms of the related obligation. Remeasurement gains and losses arising from experience adjustments and changes in actuarial assumptions are recognized in the period in which they occur, directly in other comprehensive income. Changes in the present value of the defined benefit obligation resulting from plan amendments or curtailments are recognized immediately in profit or loss as past service costs. (2) Termination benefits Termination benefits are payable when employment is terminated by the Group before the normal retirement date, or whenever an employee accepts voluntary redundancy in exchange for these benefits. The Group recognizes termination benefits at the earlier of the following dates: when the entity can no longer withdraw the offer of those benefits or when the entity recognizes costs for a restructuring. (3) Long-term employee benefits Certain entities within the Group provide long-term employee benefits that are entitled to employees with service period for ten years and above. The expected costs of these benefits are accrued over the period of employment using the same accounting methodology as used for defined benefit pension plans. The Group recognizes service cost, net interest on other long-term employee benefits and remeasurements as profit or loss for the year. These liabilities are valued at least annually by an independent qualified actuary. |
Share-based payments | 2.2 2 Share-based payments Equity-settled share-based payment is recognized at fair value of equity instruments granted, and employee benefit expense is recognized over the vesting period. At the end of each period, the Group revises its estimates of the number of options that are expected to vest based on the non-market |
Provisions | 2.2 3 Provisions Provisions for service warranties, recoveries, litigations and claims, and others are recognized when the Group presently hold legal or constructive obligation as a result of past events, and when it is probable that an outflow of resources will be required to settle the obligation and the amount can be reliably estimated. Provisions are measured at the present value of management’s best estimate of the expenditure required to settle the present obligation at the end of the reporting period, and the increase in the provision due to the passage of time is recognized as interest expense. |
Leases | 2.2 4 Leases As at January 1, 2019, with implementation of IFRS 16 Leases, the Group has changed accounting policy. The Group has adopted IFRS 16 modified retrospectively, as permitted under the specific transitional provisions in the standard, and recognized the cumulative impact of initially applying the standard as at January 1, 2019. As explained in “Note 2.2 (1)” above, the Group has changed its accounting policy for leases. The impact of the new accounting policies is disclosed in Note 41. (1) Lessee The Group leases various repeater server rack, offices, track facilities, machinery and cars. Contracts may contain both lease and non-lease non-lease non-lease Assets and liabilities arising from a lease are initially measured on a present value basis. Lease liabilities include the net present value of the following lease payments: • Fixed payments (including in-substance • Variable lease payment that are based on an index or a rate, initially measured using the index or rate as at the commencement date • Amounts expected to be payable by the Group (the lessee) under residual value guarantees • The exercise price of a purchase option if the Group (the lessee) is reasonably certain to exercise that option, and • Payments of penalties for terminating the lease, if the lease term reflects the Group (the lessee) exercising that option Lease liability measurement also include payments to be made in option periods if the lessee is reasonably certain in exercising an option to extend the lease. The Group determines the lease term as the non-cancellable The lease payments are discounted using the interest rate implicit in the lease. If that rate cannot be determined, the lessee’s incremental borrowing rate is used, which is the rate that the lessee would have to pay to borrow the funds necessary to obtain an asset of similar value in a similar economic environment with similar terms and conditions. The Group is exposed to potential future increases in variable lease payments based on an index or rate, which are not included in the lease liability until they take effect. When adjustments to lease payments based on an index or rate take effect, the lease liability is reassessed and adjusted against the right-of-use Each lease payment is allocated between the liability and finance cost. The finance cost is charged to profit or loss over the lease period in order to produce a constant periodic rate of interest on the remaining balance of the liability for each period. Right-of-use • amount of the initial measurement of lease liability • any lease payments made at or before the commencement date less any lease incentives received • any initial direct costs (leasehold deposits) • restoration costs, and • present value discount on leasehold deposit The right-of-use right-of-use Payments associated with short-term leases and leases of low-value Low-value (2) Lessor Lease income from operating leases where the Group is a lessor is recognized in income on a straight- line basis over the lease term. Initial direct costs incurred in obtaining an operating lease are added to the carrying amount of the underlying asset and recognized as expense over the lease term on the same basis as lease income. The respective leased assets are included in the statement of financial position based on their nature. |
Share Capital | 2. 25 Share Capital The Group classifies ordinary shares as equity. Where the Controlling Company purchases its own shares, the consideration paid, including any directly attributable incremental costs, is deducted from equity until the share are cancelled or reissued. When these treasury shares are reissued, any consideration received is including in equity attributable to the equity holders of the Controlling Company. |
Revenue Recognition | 2. 26 Revenue Recognition In May 2014, the IASB issued IFRS 15, which replaced IAS 18. This standard is applicable to years beginning on or after January 1, 2018. The Group adopted IFRS 15 modified retrospectively, with the cumulative effects of the initial application being recognized on the date of the initial application, on January 1, 2018. Accordingly, as provided for in this standard, the Group recorded the cumulative effect as at the date of the initial application of the standard as an adjustment to the initial balance in the retained earnings. In accordance with this transition method, the entity applied this pronouncement modified retrospectively only for contracts that are still in force as at the date of the initial application. (1) Identification of contracts The Group performed a comprehensive review of the commercial offers in force, in order to identify the principal contractual clauses and other contractual elements that may be significant regarding the adoption of the new accounting standard. (2) Identifying performance obligations With the application of IFRS 15, the Group identifies performance obligations with a customer such as Mobile and fixed-line service, Media and content services, financial services and sale of goods. Accordingly, the Group will recognize revenue when, or to the extent that, it satisfies the performance obligations by transferring the goods or services that were promised to the customer. Mobile and fixed-line service Telecommunication service revenues include mobile and fixed-line(e.g., fixed-line and VoIP telephone, broadband internet access services and data communication services). These services represent a series of distinct services that are considered a separate performance obligations. Service revenue is recognized when services are provided, based upon either usage (e.g., minutes of traffic/bytes of data processed) or period of time (e.g., monthly service fees). Media and content services Revenue from media and content services primarily consists of installation fees and basic monthly charges of IPTV and satellite TV services, as well as revenue from digital content distribution, digital music streaming and downloading. Media and contents services revenue are recognized when services are provided, based upon either usage or period of time. Financial services Financial services primarily include commissions for merchant fees paid by merchants to credit card companies for processing transactions. Revenue from the commission is recognized when the service obligation is performed. Sale of goods Revenue from sale of goods, primarily handsets related to our mobile services is recognized when a performance obligation is satisfied by transferring promised goods to customers. (3) Allocation the transaction price and Revenue recognition With the application of IFRS 15, the Group allocates the transaction price to each performance obligation identified in the contract based on a relative stand-alone selling prices of the goods or services being provided to the customer. The Group verified the existence of two main performance obligations: (i) telecommunication services; and (ii) selling handsets. To allocate the transaction price to each performance obligation on a relative stand-alone price basis, the Group determines the stand-alone selling price at contract inception of the distinct good or service underlying each performance obligation in the contract and allocate the transaction price in proportion to those stand-alone selling price. The standalone selling price is the price at which the Group would sell a promised good or service separately to the customer. The best evidence of a stand-alone selling price is the observable price of a good or service when the Group sells that good or service separately in similar circumstances and to similar customers. The Group recognizes the allocated amount as contract assets or contract liabilities, and amortizes it through the remaining period which is adjusted in operating profit. The adoption of the new revenue standard in some cases resulted in the early recognition of revenue from the sale of handsets, which are usually recognized upon the transfer of control to the customer, due to the allocation of discounts between the performance obligations arising from the sale of plans that include mobile services as well as handsets. The difference between the carrying value of sales of handsets, and the amount received from the customer is recorded as a contractual asset and/or liability at the beginning of the contract. Revenue from telecommunication services, in turn, will be recognized in the statement of income based on the allocation of the transaction price, and to the extent that services are being provided to customers in monthly basis. (4) Incremental contract acquisition costs The Group pays the commission fees to authorized dealers when new customer subscribe for telecommunication services. The incremental contract acquisition costs are those commission fees that the Group incurs to acquire a contract with a customer that it would not have incurred if the contract had not been acquired. According to IFRS 15, the Group recognizes as an asset the incremental contract acquisition costs and amortize it over the expected period of benefit. However, as a practical expedient, the Group may recognize the incremental contract acquisition costs as an expense when incurred if the amortization period of the asset is one year or less. |
Current and Deferred Income Tax | 2. 27 Current and Deferred Income Tax The tax expense for the period consists of current and deferred tax. Current and deferred tax is recognized in profit or loss, except to the extent that it relates to items recognized in other comprehensive income or directly in equity. In this case, the tax is also recognized in other comprehensive income or directly in equity, respectively. The tax expense is measured at the amount expected to be paid to the taxation authorities, using the tax rates (and tax laws) that have been enacted or substantively enacted by the end of the reporting period. Management periodically evaluates tax policies that are applied in tax returns in which applicable tax regulation is subject to interpretation. The Group recognizes current income tax on the basis of the amount expected to be paid to the tax authorities. Deferred income tax is provided in full, using the liability method, on temporary differences arising between the tax bases of assets and liabilities and their carrying amounts in the consolidated financial statements. However, deferred income tax is not accounted for if it arises from initial recognition of an asset or liability in a transaction other than a business combination that at the time of the transaction affects neither accounting nor taxable profit or loss. Deferred tax assets are recognized only if it is probable that future taxable amount will be available to utilize those temporary differences and losses. The Group recognizes a deferred tax liability for taxable temporary differences associated with investments in subsidiaries, associates, and interests in joint arrangements, except to the extent that the Group is able to control the timing of the reversal of the temporary difference and it is probable that the temporary difference will not reverse in the foreseeable future. In addition, The Group recognizes a deferred tax asset for all deductible temporary differences arising from such investments to the extent that it is probable the temporary difference will reverse in the foreseeable future and taxable profit will be available against which the temporary difference can be utilized. Deferred tax assets and liabilities are offset when there is a legally enforceable right to offset current tax assets and liabilities and when the deferred tax balances relate to the same taxation authority. Current tax assets and liabilities are offset when the Group has a legally enforceable right to offset and intends either to settle on a net basis, or to realize the assets and settle the liability simultaneously. The Group adopts the consolidated corporate tax return and calculates income tax expenses and income tax liabilities of the Group based on systematic and reasonable methods. |
Dividend | 2. 28 Dividend Dividend distribution to the Group’s shareholders is recognized as a liability in the consolidated financial statements in the period in which the dividends are approved by the Group’s shareholders. |
Approval of the Consolidated Financial Statements | 2.2 9 Approval of the Consolidated Financial Statements The consolidated financial statements for 2020 were approved for issuance by the Board of Directors on April 13, 2021. |
General Information (Tables)
General Information (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Consolidated Subsidiaries | The consolidated subsidiaries as at December 31, 2019 and 2020, are as follows: Controlling percentage 1 Subsidiary Type of business Location December 31, December 31, Closing month KT Powertel Co., Ltd. 2 Trunk Radio System (TRS) business Korea 44.8% 44.8% December KT Linkus Co., Ltd. Public telephone maintenance Korea 92.4% 92.4% December KT Submarine Co., Ltd. 2,4 Submarine cable construction and maintenance Korea 39.3% 39.3% December KT Telecop Co., Ltd. Security service Korea 86.8% 86.8% December KT Hitel Co., Ltd. Data communication Korea 67.1% 67.1% December KT Service Bukbu Co., Ltd. Opening services of fixed line Korea 67.3% 67.3% December KT Service Nambu Co., Ltd. Opening services of fixed line Korea 77.3% 77.3% December KT Commerce Inc. B2C, B2B service Korea 100.0% 100.0% December KT Strategic Investment Fund No.2 Investment fund Korea 100.0% 100.0% December KT Strategic Investment Fund No.3 Investment fund Korea 100.0% 100.0% December KT Strategic Investment Fund No.4 Investment fund Korea 100.0% 100.0% December KT Strategic Investment Fund No.5 Investment fund Korea 100.0% 100.0% December BC-VP Investment fund Korea 100.0% 100.0% December BC Card Co., Ltd. Credit card business Korea 69.5% 69.5% December VP Inc. Payment security service for credit card, others Korea 50.9% 50.9% December H&C Network Call centre for financial sectors Korea 100.0% 100.0% December BC Card China Co., Ltd. Software development and data processing China 100.0% 100.0% December INITECH Co., Ltd. 4 Internet banking ASP and security solutions Korea 58.2% 58.2% December Smartro Co., Ltd. VAN (Value Added Network) business Korea 64.5% 64.5% December KTDS Co., Ltd. 4 System integration and maintenance Korea 95.5% 95.5% December KT M Hows Co., Ltd. Mobile marketing Korea 90.0% 90.0% December KT M&S Co., Ltd. PCS distribution Korea 100.0% 100.0% December GENIE Music Corporation (KT Music Corporation) 2,4 Online music production and distribution Korea 36.0% 36.2% December KT MOS Bukbu Co., Ltd. 4 Telecommunication facility maintenance Korea 100.0% 100.0% December KT MOS Nambu Co., Ltd. 4 Telecommunication facility maintenance Korea 98.4% 98.4% December KT Skylife Co., Ltd. 4 Satellite broadcasting business Korea 50.3% 50.3% December Skylife TV Co., Ltd. TV contents provider Korea 92.6% 92.6% December KT Estate Inc. Residential building development and supply Korea 100.0% 100.0% December KT AMC Co., Ltd. Asset management and consulting services Korea 100.0% 100.0% December NEXR Co., Ltd. Cloud system implementation Korea 100.0% 100.0% December KTGDH Co., Ltd. (KTSB Data Service) Data centre development and related service Korea 100.0% 100.0% December KT Sat Co., Ltd. Satellite communication business Korea 100.0% 100.0% December Nasmedia Co., Ltd. 3,4 Solution provider and IPTV advertisement sales business Korea 44.0% 44.0% December KT Sports Co., Ltd. Management of sports group Korea 100.0% 100.0% December KT Music Contents Fund No.1 Music contents investment business Korea 80.0% 80.0% December KT Music Contents Fund No.2 Music contents investment business Korea 100.0% 100.0% December KT-Michigan Content investment business Korea 88.6% 88.6% December Autopion Co., Ltd. Information and communication service Korea 100.0% 100.0% December KTCS Corporation 2,4 Database and online information provider Korea 30.9% 31.9% December KTIS Corporation 2,4 Database and online information provider Korea 30.1% 30.8% December KT M Mobile Co., Ltd. Special category telecommunications operator and sales of communication device Korea 100.0% 100.0% December KT Investment Co., Ltd. Technology business finance Korea 100.0% 100.0% December Whowho&Company Co., Ltd. Software development and supply Korea 100.0% 100.0% December PlayD Co., Ltd. (N Search Marketing Co., Ltd.) Advertising agency Korea 100.0% 70.4% December Next Connect PFV Residential building development and supply Korea 100.0% 100.0% December KT Rwanda Networks Ltd. Network installation and management Rwanda 51.0% 51.0% December AOS Ltd. System integration and maintenance Rwanda 51.0% 51.0% December KT Belgium Foreign investment business Belgium 100.0% 100.0% December Korea Telecom Japan Co., Ltd. Foreign telecommunication business Japan 100.0% 100.0% December KBTO sp.z o.o. Electronic communication business Poland 97.2% 97.4% December Korea Telecom China Co., Ltd. Foreign telecommunication business China 100.0% 100.0% December KT Dutch B.V. Super iMax and East Telecom management Netherlands 100.0% 100.0% December East Telecom LLC Fixed line telecommunication business Uzbekistan 91.0% 91.6% December Korea Telecom America, Inc. Foreign telecommunication business USA 100.0% 100.0% December PT. BC Card Asia Pacific Software development and supply Indonesia 99.9% 99.9% December KT Hong Kong Telecommunications Co., Ltd. Fixed line communication business Hong Kong 100.0% 100.0% December Korea Telecom Singapore Pte. Ltd. Foreign investment business Singapore 100.0% 100.0% December Texnoprosistem LLC Fixed line internet business Uzbekistan 100.0% 100.0% December Nasmedia Thailand Co., Ltd. Internet advertising solution provider Thailand 99.9% 99.9% December KT Huimangjieum Manufacturing Korea 100.0% 100.0% December GE Premier 1st Corporate Restructuring Real Estate Investment Trust Co. Residential building investment and rent Korea 63.5% 68.1% December K-REALTY Residential building Korea 100.0% 88.6% December Storywiz Co., Ltd Content and software development and supply Korea — 100.0% December KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) Telecommunication facility construction and maintenance Korea — 100.0% December 1 Sum of the ownership interests owned by the Controlling Company and subsidiaries. 2 Although the Controlling Company owns less than 50% ownership in this entity, this entity is consolidated as the Controlling Company can exercise the majority voting rights in its decision-making process at all times considering the historical voting pattern at the shareholders’ meetings. 3 Although the Controlling Company owns less than 50% ownership in this entity, this entity is consolidated as the Controlling Company holds the majority of voting right based on an agreement with other investors. 4 The number of subsidiaries’ treasury stock is deducted from the total number of shares when calculating the controlling percentage ownership. Changes in scope of consolidation in 2020 are as follows: Changes Location Name of Subsidiary Reason Included Korea Storywiz Co., Ltd Newly established Korea KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) Transferred Excluded Uzbekistan Super iMax LLC Merged Indonesia PT. KT Indonesia Liquidated Belgium KT ORS Belgium Liquidated Summarized information for consolidated subsidiaries as at and for the years ended December 31, 2018, 2019 and 2020, is as follows: (In millions of Korean won) 2018 Total Total Operating Profit (loss) for the year KT Powertel Co., Ltd. ₩ 124,064 ₩ 28,217 ₩ 65,620 ₩ (5,545 ) KT Linkus Co., Ltd. 54,147 44,895 106,337 1,216 KT Submarine Co., Ltd. 130,715 27,530 61,652 (4,286 ) KT Telecop Co., Ltd. 272,492 140,314 328,262 166 KT Hitel Co., Ltd. 272,708 66,043 279,117 657 KT Service Bukbu Co., Ltd. 30,599 23,964 195,961 (31 ) KT Service Nambu Co., Ltd. 37,452 27,939 230,088 160 BC Card Co., Ltd. 1 3,722,379 2,630,536 3,551,715 70,889 H&C Network 1 245,841 63,188 297,470 (15,944 ) Nasmedia Co., Ltd. 1 303,112 161,164 106,805 20,596 KTDS Co., Ltd. 1 148,675 95,834 434,302 8,586 KT M Hows Co., Ltd. 60,197 42,386 26,673 3,691 KT M&S Co., Ltd. 228,073 207,740 791,652 11,408 GENIE Music Corporation (KT Music Corporation) 221,559 75,827 171,314 6,374 KT MOS Bukbu Co., Ltd. 14,121 10,571 16,543 (782 ) KT MOS Nambu Co., Ltd. 14,313 8,927 14,941 (2,418 ) KT Skylife Co., Ltd. 1 816,001 149,841 694,059 52,010 KT Estate Inc. 1 1,695,995 304,712 569,269 51,854 KTGDH Co., Ltd. (KTSB Data service) 8,632 523 4,627 (9,576 ) KT Sat Co., Ltd. 685,926 173,513 137,186 4,921 KT Sports Co., Ltd. 9,560 6,376 55,565 (154 ) KT Music Contents Fund No.1 14,092 1,035 559 294 KT Music Contents Fund No.2 7,629 281 150 (142 ) KT-Michigan 12,741 — 869 (670 ) Autopion Co., Ltd. 8,838 5,801 12,035 453 KT M mobile Co., Ltd. 146,334 35,335 172,674 (10,085 ) KT Investment Co., Ltd. 1 74,580 58,040 8,095 247 KTCS Corporation 1 350,280 188,561 1,019,787 11,401 KTIS Corporation 229,246 68,997 451,532 7,900 Next connect PFV 385,769 34,370 143 (12,449 ) Korea Telecom Japan Co., Ltd. 1 1,326 2,910 1,965 (126 ) Korea Telecom China Co., Ltd. 661 22 681 10 KT Dutch B.V. 31,693 41 191 105 Super iMax LLC 4,150 4,528 4,845 (424 ) East Telecom LLC 1 16,590 14,263 15,087 2,639 Korea Telecom America, Inc. 4,218 832 7,554 350 PT. KT Indonesia 8 — — — KT Rwanda Networks Ltd. 2 144,129 162,801 15,150 (29,238 ) KT Belgium 90,172 1 29 (43 ) KT ORS Belgium 6,709 5 — (46 ) KBTO sp.zo.o. 1,364 217 202 (3,771 ) AOS Ltd. 2 14,018 4,952 6,300 (680 ) KT Hongkong Telecommunications Co., Ltd. 3,616 2,143 9,990 351 1 These companies are the intermediate controlling companies of other subsidiaries and the above financial information is from their consolidated financial statements. 2 At the end of the reporting period, convertible preferred stock issued by subsidiaries is included in liabilities. (In millions of Korean won) 2019 Total Total Operating Profit (loss) for the year KT Powertel Co., Ltd. ₩ 118,052 ₩ 19,766 ₩ 62,846 ₩ 3,085 KT Linkus Co., Ltd. 70,494 62,088 97,892 (2,258 ) KT Submarine Co., Ltd. 120,947 18,452 55,244 486 KT Telecop Co., Ltd. 279,878 153,841 332,063 (4,875 ) KT Hitel Co., Ltd. 279,818 74,769 323,065 1,426 KT Service Bukbu Co., Ltd. 64,802 58,984 219,427 (445 ) KT Service Nambu Co., Ltd. 63,917 55,548 266,148 280 BC Card Co., Ltd. 1 3,912,982 2,594,232 3,553,008 115,885 H&C Network 1 282,016 68,401 320,701 (1,593 ) Nasmedia Co., Ltd. 1 356,236 203,105 117,550 22,484 KTDS Co., Ltd. 1 158,153 105,462 428,758 9,027 KT M Hows Co., Ltd. 74,326 50,638 33,443 6,771 KT M&S Co., Ltd. 248,142 215,777 813,498 12,732 GENIE Music Corporation (KT Music Corporation) 234,131 80,952 230,480 7,658 KT MOS Bukbu Co., Ltd. 33,376 28,841 63,761 353 KT MOS Nambu Co., Ltd. 34,258 26,722 67,300 3,099 KT Skylife Co., Ltd. 1 848,276 142,839 704,996 56,008 KT Estate Inc. 1 1,686,000 295,706 485,686 48,552 KTGDH Co., Ltd. (KTSB Data service) 10,437 1,628 3,977 344 KT Sat Co., Ltd. 651,195 127,523 168,376 16,497 KT Sports Co., Ltd. 15,603 8,333 55,241 (464 ) KT Music Contents Fund No.1 10,579 1,677 521 345 KT Music Contents Fund No.2 7,675 279 331 48 KT-Michigan 11,688 61 248 (1,113 ) Autopion Co., Ltd. 7,460 4,894 5,604 (302 ) KT M mobile Co., Ltd. 135,917 30,603 161,720 (5,580 ) KT Investment Co., Ltd. 1 73,463 56,212 13,375 847 KTCS Corporation 1 378,171 213,983 944,778 7,597 KTIS Corporation 305,798 137,524 454,561 9,205 Next connect PFV 385,412 24,275 1,590 (5,898 ) Korea Telecom Japan Co., Ltd. 1 1,851 2,858 2,891 651 Korea Telecom China Co., Ltd. 879 39 844 192 KT Dutch B.V. 31,003 50 — (242 ) Super iMax LLC 3,568 5,304 4,604 (631 ) East Telecom LLC 1 20,857 16,302 17,186 2,140 Korea Telecom America, Inc. 4,611 537 6,808 572 PT. KT Indonesia 8 — — — KT Rwanda Networks Ltd. 2 132,461 183,164 18,013 (31,662 ) KT Belgium 93,321 11 — (64 ) KT ORS Belgium 6,913 14 — (43 ) KBTO sp.zo.o. 1,767 245 519 (3,457 ) AOS Ltd. 2 12,337 3,993 6,982 (591 ) KT Hongkong Telecommunications Co., Ltd. 5,126 2,923 13,321 586 KT Huimangjieum 2,129 1,019 1,027 (390 ) GE Premier 1st Corporate Restructuring Real Estate Investment Trust Co. 6,285 1,139 176 70 K-REALTY 300 — — — 1 These companies are the intermediate controlling companies of other subsidiaries and the above financial information is from their consolidated financial statements. 2 At the end of the reporting period, convertible preferred stock issued by subsidiaries is included in liabilities. ( I 2020 Total Total Operating Profit (loss) for the year KT Powertel Co., Ltd. ₩ 119,694 ₩ 18,833 ₩ 65,897 ₩ 3,809 KT Linkus Co., Ltd. 58,372 54,022 84,519 (3,212 ) KT Submarine Co., Ltd. 116,813 14,032 110,201 1,197 KT Telecop Co., Ltd. 318,456 193,737 392,489 212 KT Hitel Co., Ltd. 288,949 92,599 350,231 2,080 KT Service Bukbu Co., Ltd. 60,825 56,554 217,451 (871 ) KT Service Nambu Co., Ltd. 58,182 51,460 264,776 (456 ) BC Card Co., Ltd. 1 3,084,398 1,778,751 3,387,640 39,455 H&C Network 1 269,651 61,365 322,690 2,413 Nasmedia Co., Ltd. 1 422,039 221,371 113,136 23,134 KTDS Co., Ltd. 1 183,297 133,129 499,990 10,635 KT M Hows Co., Ltd. 104,704 76,315 44,860 6,935 KT M&S Co., Ltd. 231,260 197,306 661,533 (485 ) GENIE Music Corporation (KT Music Corporation) 250,538 88,488 247,237 9,472 KT MOS Bukbu Co., Ltd. 32,167 26,070 67,975 1,473 KT MOS Nambu Co., Ltd. 33,765 24,947 71,259 1,639 KT Skylife Co., Ltd. 1 919,476 175,039 706,631 58,190 KT Estate Inc. 1 1,689,601 325,429 365,335 14,370 KTGDH Co., Ltd. (KTSB Data Service) 11,003 1,669 4,282 538 KT Sat Co., Ltd. 630,740 92,791 173,693 14,753 KT Sports Co., Ltd. 26,572 14,940 46,608 (2,516 ) KT Music Contents Fund No.1 4,844 1,525 243 84 KT Music Contents Fund No.2 15,021 285 169 (116 ) KT-Michigan 10,382 175 111 (1,420 ) Autopion Co., Ltd. 4,903 4,961 6,174 (2,459 ) KT M Mobile Co., Ltd. 129,011 27,281 163,472 (3,617 ) KT Investment Co., Ltd. 1 115,627 93,695 47,801 4,680 KTCS Corporation 1 384,919 215,175 933,006 11,323 KTIS Corporation 294,289 126,894 454,172 7,387 Next Connect PFV 394,268 37,271 26 (7,101 ) Korea Telecom Japan Co., Ltd. 1 2,694 2,622 1,853 1 Korea Telecom China Co., Ltd. 381 21 618 (492 ) KT Dutch B.V. 1 29,585 10,109 26,782 6,061 Korea Telecom America, Inc. 4,498 125 6,808 712 KT Rwanda Networks Ltd. 2 114,768 191,781 17,870 (34,610 ) KT Belgium 87,608 — (81 ) (81 ) KBTO sp.z o.o. 438 117 490 (2,823 ) AOS Ltd. 2 11,812 3,875 5,719 296 KT Hong Kong Telecommunications Co., Ltd. 6,159 2,800 16,386 1,308 KT Huimangjieum 3,720 2,787 5,239 (13 ) GE Premier 1st Corporate Restructuring Real Estate Investment Trust Co. 5,703 1,165 333 83 Storywiz Co., Ltd 21,594 10,065 19,209 (1,954 ) KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) 138,220 102,963 346,040 (8,461 ) 1 These companies are the intermediate controlling companies of other subsidiaries and the above financial information is from their consolidated financial statements. 2 At the end of the reporting period, convertible preferred stock issued by subsidiaries is included in liabilities. |
Significant Accounting Polici_3
Significant Accounting Policies (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Estimated Useful Lives of Property, Plant and Equipment | Depreciation of all property and equipment, except for land, is calculated using the straight-line method to allocate their cost, net of their residual values, over their estimated useful lives as follows: Estimated Useful Life Buildings 5 – 40 years Structures 5 – 40 years Machinery and equipment (Telecommunications equipment and others) 2 – 40 years Others Vehicles 4 – 6 years Tools 4 – 6 years Office equipment 2 – 6 years |
Summary of Amortization of Intangible Assets With Limited Useful Life | The Group amortizes intangible assets with a limited useful life using the straight-line method over the following periods: Estimated Useful Life Development costs 5 – 6 years Software 4 – 6 years Frequency usage rights 5 – 10 years Others 1 1 – 50 years 1 Membership rights (condominium membership and golf membership) and broadcast license included in others are classified as intangible assets with indefinite useful life. |
Financial Instruments by Cate_2
Financial Instruments by Category (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Financial Instruments by Category | Financial instruments by category as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 Financial assets Financial assets at cost Financial Financial Derivatives Total Cash and cash equivalents ₩ 2,305,894 ₩ — ₩ — ₩ — ₩ 2,305,894 Trade and other receivables 1 5,748,459 — 1,256,266 — 7,004,725 Other financial assets 441,804 632,324 557,342 58,576 1,690,046 1 Lease receivables and others which are not applied to financial instruments by category are excluded. (In millions of Korean won) December 31, 2019 Financial liabilities Financial Financial Derivatives Total Trade and other payables ₩ 8,679,698 ₩ — ₩ — ₩ 8,679,698 Borrowings 7,298,867 — — 7,298,867 Other financial liabilities 129,945 38 20,096 150,079 (In millions of Korean won) December 31, 2020 Financial assets Financial Financial Financial Derivatives Total Cash and cash equivalents ₩ 2,634,624 ₩ — ₩ — ₩ — ₩ 2,634,624 Trade and other receivables 1 4,976,423 — 1,118,619 — 6,095,042 Other financial assets 671,068 809,919 258,516 7,684 1,747,187 1 Lease receivables and others which are not applied to financial instruments by category are excluded. (In millions of Korean won) December 31, 2020 Financial liabilities Financial Financial liabilities Derivatives Total Trade and other payables ₩ 7,017,639 ₩ — ₩ — ₩ 7,017,639 Borrowings 7,316,298 — — 7,316,298 Other financial liabilities 132,558 2,682 127,929 263,169 |
Summary of Gains or Losses Arising From Financial Instruments by Category | Gains or losses arising from financial instruments by category for the years ended December 31, 2018, 2019 and 2020, are as follows: (In millions of Korean won) 2018 2019 2020 Financial assets at amortized cost Interest income 1,5 ₩ 93,233 ₩ 79,838 ₩ 55,742 Gain(loss) on foreign currency transaction 4 19,396 32,293 (19,244 ) Loss on foreign currency translation 4 (2,901 ) (474 ) (3,895 ) Gain(loss) on disposal 44 (43 ) 138 Loss on valuation (110,544 ) (59,947 ) (140,474 ) Financial assets at fair value through profit or loss Interest income 1 9,194 5,634 6,548 Dividend income 6 1,207 1,096 4,379 Gain on valuation 7 10,768 4,334 59,044 Gain on disposal 1,713 5,115 (329 ) Loss on foreign currency transaction 4 — — (38 ) Loss on foreign currency translation 4 — (27 ) — Financial assets at fair value through other comprehensive income Interest income 1 163,390 217,355 227,736 Dividend income 6 1,704 2,312 56 Impairment loss (2,416 ) (304 ) — Loss on disposal (13,818 ) (11,247 ) (8,152 ) Other comprehensive income for the year 2 43,811 167,152 41,997 Derivative assets used for hedging Gain on transaction 7,272 6,332 6,050 Gain(loss) on valuation 22,065 56,537 (2,707 ) Other comprehensive income(loss) for the year 2 20,078 46,806 (2,373 ) Reclassified to profit or loss from other comprehensive income for the year 2,3 (15,891 ) (39,604 ) 3,645 Financial liabilities at fair value through profit or loss Gain on disposal — 2,664 799 Gain(loss) on valuation (2,708 ) (1,936 ) 119 Derivative liabilities used for hedging Gain on transactions 20,678 — 1,141 Gain(loss) on valuation 42,195 4,949 (161,003 ) Other comprehensive income for the year 2 (2,810 ) 20,742 (81,671 ) Reclassified to profit or loss from other comprehensive income for the year 2,3 (28,388 ) (5,080 ) 107,786 Financial liabilities at amortized cost Interest expense 1,5 (296,894 ) (223,974 ) (220,945 ) Loss on repayment (15 ) — — Loss on foreign currency transaction 4 (30,956 ) (20,958 ) (10,717 ) Gain(loss) on foreign currency translation 4 (66,050 ) (75,502 ) 141,849 Total ₩ (116,643 ) ₩ 214,063 ₩ 5,481 1 BC Card, a subsidiary of the Group, recognized interest income and expense as operating revenue and expense, respectively. Related interest income recognized as operating revenue is ₩ ₩ ₩ ₩ ₩ ₩ 2 The amounts directly reflected in equity after adjustments of deferred income tax. 3 During the year, certain derivatives of the Group were settled and the related gain or loss on valuation of cash flow hedge in other comprehensive income was reclassified to profit or loss for the year. 4 BC Card Co., Ltd., a subsidiary of the Group recognized foreign currency translation/transaction gain and loss and as operating income and expenses. In relation to this, foreign currency translation gain and loss recognized as operating revenue and expense amount to ₩ ₩ ₩ ₩ ₩ ₩ 5 Interest income (interest expense) from lease receivables (lease liabilities) is excluded as it is not subject to classification of financial instruments (Note 21). 6 BC Card Co., Ltd., a subsidiary of the Group, recognized dividend income as operating revenue. Related dividend income recognized as operating revenue is ₩ ₩ ₩ 7 KT Investment Co., Ltd., etc., subsidiaries of the Group, recognized financial instruments measured at fair value through profit or loss as operating income and expenses. In relation to this, valuation gain and loss recognized as operating revenue and expense amount to ₩ 40,822 million (2018: ₩ (-) 5 million, 2019: ₩ 15,429 million), for the year ended December 31, 2020. |
Cash and Cash Equivalents (Tabl
Cash and Cash Equivalents (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Restricted Cash and Cash Equivalents | Restricted cash and cash equivalents as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, December 31, Description Bank deposits ₩ ₩ Deposit restricted for government project and others |
Trade and Other Receivables (Ta
Trade and Other Receivables (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Trade and Other Receivables | Trade and other receivables as at December 31, 2019 and 2020, are as follows: December 31, 2019 (In millions of Korean won) Total Provision Present value Carrying amount Current assets Trade receivables ₩ 3,451,107 ₩ (291,202 ) ₩ (9,510 ) ₩ 3,150,395 Other receivables 2,787,144 (78,572 ) (271 ) 2,708,301 ₩ 6,238,251 ₩ (369,774 ) ₩ (9,781 ) ₩ 5,858,696 Non-current Trade receivables ₩ 874,860 ₩ (4,117 ) ₩ (43,597 ) ₩ 827,146 Other receivables 382,468 (5,108 ) (22,708 ) 354,652 ₩ 1,257,328 ₩ (9,225 ) ₩ (66,305 ) ₩ 1,181,798 December 31, 2020 (In millions of Korean won) Total Provision Present value Carrying amount Current assets Trade receivables ₩ 3,388,099 ₩ (322,992 ) ₩ (8,977 ) ₩ 3,056,130 Other receivables 1,948,108 (101,619 ) (148 ) 1,846,341 ₩ 5,336,207 ₩ (424,611 ) ₩ (9,125 ) ₩ 4,902,471 Non-current Trade receivables ₩ 892,992 ₩ (4,323 ) ₩ (34,716 ) ₩ 853,953 Other receivables 513,926 (102,985 ) (14,125 ) 396,816 ₩ 1,406,918 ₩ (107,308 ) ₩ (48,841 ) ₩ 1,250,769 |
Summary of Changes in Provision for Impairment | Details of changes in provision for impairment for the years ended December 31, 2019 and 2020, are as follows: 2019 2020 (In millions of Korean won) Trade Other Trade Other Beginning balance ₩ 359,924 ₩ 93,822 ₩ 295,319 ₩ 83,680 Provision 24,596 35,597 89,097 50,860 Reversal — (475 ) — (890 ) Written-off (90,513 ) (44,108 ) (60,598 ) (25,067 ) Change in consolidation scope — — 3,211 87,614 Others 1,312 (1,156 ) 286 8,407 Ending balance ₩ 295,319 ₩ 83,680 ₩ 327,315 ₩ 204,604 |
Summary of Other Receivables | Details of other receivables as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, December 31, Loans ₩ 84,148 ₩ 116,082 Receivables 1 2,540,315 1,699,608 Accrued income 8,630 6,901 Refundable deposits 352,293 350,180 Loans receivable 105,961 150,527 Finance lease receivables 39,726 64,047 Others 15,560 60,416 Less: Provision for impairment (83,680 ) (204,604 ) ₩ 3,062,953 ₩ 2,243,157 1 Settlement receivables of BC Card Co., Ltd., a subsidiary of the Group, of ₩ ₩ |
Other Financial Assets and Li_2
Other Financial Assets and Liabilities (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Other Financial Assets and Liabilities | Details of other financial assets and liabilities as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 December 31, 2020 Other financial assets Financial assets at amortized cost 1 ₩ 441,804 ₩ 671,068 Financial assets at fair value through profit or loss 1,2,3 632,324 809,919 Financial assets at fair value through other comprehensive income 1,3 557,342 258,516 Derivative used for hedging 58,576 7,684 Less: Non-current (821,658 ) (544,347 ) Current ₩ 868,388 ₩ 1,202,840 Other financial liabilities Financial liabilities at amortized cost ₩ 129,945 ₩ 132,558 Financial liabilities at fair value through profit or loss 38 2,682 Derivatives used for hedging 20,096 127,929 Less: Non-current (149,136 ) (260,676 ) Current ₩ 943 ₩ 2,493 1 As at December 31, 2020, the Group’s other financial assets amounting to ₩ ₩ 2 As at December 31, 2020, MMW (Money Market Wrap) and MMT (Money Market Trust) amounting to ₩ ₩ 3 As at December 31, 2020, the Group provided investments in Korea Software Financial Cooperative amounting to ₩ ₩ |
Summary of Financial Assets at Fair Value Through Profit or Loss | Details of financial assets at fair value through profit or loss as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 December 31, 2020 Equity Instruments (Listed) ₩ 232 ₩ 46,449 Equity Instruments (Unlisted) 90,357 83,017 Debt securities 541,657 680,453 Derivatives held for trading 78 — Total 632,324 809,919 Less: non-current (219,026 ) (276,109 ) Current ₩ 413,298 ₩ 533,810 |
Summary of Financial Assets at Fair Value Through Other Comprehensive Income | Details of financial assets at fair value through other comprehensive income as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 December 31, 2020 Equity Instruments (Listed) ₩ 6,738 ₩ 6,216 Equity Instruments (Unlisted) 543,518 245,730 Debt securities 7,086 6,570 Total 557,342 258,516 Less: non-current (556,147 ) (258,516 ) Current ₩ 1,195 ₩ — |
Summary of Derivative Financial Assets and Liabilities | Derivatives used for hedg ing December 31, 2019 December 31, 2020 (In millions of Korean won) Assets Liabilities Assets Liabilities Interest rate swap 1 ₩ — ₩ 1,464 ₩ — ₩ 1,078 Currency swap 2 55,569 18,632 7,684 126,189 Currency forwards 3 3,007 — — 662 Total 58,576 20,096 7,684 127,929 Less: non-current (28,304 ) (19,177 ) (2,111 ) (126,408 ) Current ₩ 30,272 ₩ 919 ₩ 5,573 ₩ 1,521 1 The interest rate swap contract is to hedge the risk of variability in future fair value of the borrowings. 2 The currency swap contract is to hedge the risk of variability in cash flow from the borrowings. In applying the cash flow hedge accounting, the Group hedges its exposures to cash flow fluctuation until September 7, 2034. 3 The currency forward contract is to hedge the risk of variability in cash flow from transactions in foreign currencies due to changes in foreign exchange rate. The full value of a hedging derivative is classified as a non-current |
Summary of Valuation Gains and Losses on Derivatives Contracts | The valuation gains and losses on the derivatives contracts for the years ended December 31, 2018, 2019 and 2020, are as follows: (In millions of 2018 2019 2020 Type of Valuation gain Valuation loss Other comprehensive income 1 Valuation gain Valuation loss Other comprehensive income 1 Valuation gain Valuation Loss Other comprehensive income 1 Interest rate swap ₩ 192 ₩ — ₩ (488) ₩ — ₩ 45 ₩ (963) ₩ — ₩ — ₩ (567) Currency swap 58,912 2,045 22,139 72,417 15,784 87,626 — 161,661 (113,175 ) Currency forwards 7,201 — — 4,858 — 4,858 — 2,049 — Total ₩ 66,305 ₩ 2,045 ₩ 21,651 ₩ 77,275 ₩ 15,829 ₩ 91,521 ₩ — ₩ 163,710 ₩ (113,742) 1 The amounts before adjustments of deferred income tax directly reflected in equity and allocation to the non-controlling The ineffective portion recognized in profit or loss on the cash flow hedge is valuation loss of ₩ ₩ ₩ |
Summary of Financial Liabilities at Fair Value Through Profit or Loss | Details of financial liabilities at fair value through profit or loss as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 December 31, 2020 Financial liabilities at fair value through profit or loss Derivative liabilities held for trading ₩ 38 ₩ 45 Conversion Rights and Redemption Rights — 2,637 Total ₩ 38 ₩ 2,682 |
Summary of Valuation Gain and Loss on Financial Liabilities at Fair Value Through Profit or Loss | The valuation gain and loss on financial liabilities at fair value through profit or loss for the years ended December 31, 2018, 2019 and 2020, are as follows: 2018 2019 2020 (In millions of Korean won) Valuation gain Valuation loss Valuation gain Valuation loss Valuation gain Valuation loss Derivative liabilities held for trading ₩ — ₩ 2,707 ₩ 78 ₩ 2,014 ₩ 10 ₩ 53 Conversion Rights and Redemption Rights — — — — 162 — Total ₩ — ₩ 2,707 ₩ 78 ₩ 2,014 ₩ 172 ₩ 53 |
Summary of Hedging instruments | (i) Hedging instruments (In millions of Korean won and thousands of foreign currencies) 2019 Book value of hedging Changes in fair Currency Foreign Contract Assets Liabilities USD 1,574,068 ₩ 1,788,831 ₩ 30,175 ₩ 10,692 ₩ 49,480 JPY 80,000,000 827,292 28,401 9,404 15,396 Total ₩ 2,616,123 ₩ 58,576 ₩ 20,096 ₩ 64,876 (In millions of Korean won and thousands of 2020 Book value of hedging Changes in fair Currency Foreign Contract Assets Liabilities USD 1,768,912 ₩ 2,037,568 ₩ 2,111 ₩ 100,623 ₩ (136,852 ) JPY 46,000,000 488,924 5,573 13,839 (4,065 ) SGD 284,000 245,208 — 13,467 (13,611 ) Total ₩ 2,771,700 ₩ 7,684 ₩ 127,929 ₩ (154,528 ) |
Summary of Hedged items | (ii) Hedged item (In millions of Korean won) 2019 2020 Currency Book value of hedged Changes in fair Cash flow 1 Book value of hedged Changes in fair Cash flow 1 USD ₩ 1,822,477 ₩ (45,855 ) ₩ (5,214 ) ₩ 1,924,576 ₩ 133,978 ₩ 19,641 JPY 850,776 (14,841 ) (2,395 ) 484,960 4,228 (2,569 ) SGD — — — 233,510 13,611 2,707 Total ₩ 2,673,253 ₩ (60,696 ) ₩ (7,609 ) ₩ 2,643,046 ₩ 151,817 ₩ 19,779 1 The amounts after adjustments of deferred income tax directly reflected in equity. |
Inventories (Tables)
Inventories (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
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 Valuation 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 |
Other Assets and Liabilities (T
Other Assets and Liabilities (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Other Assets and Liabilities | Other assets and liabilities as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 December 31, 2020 Other assets Advance payments ₩ 179,475 ₩ 168,302 Prepaid expenses 84,768 66,578 Contract cost 1 1,849,243 1,804,948 Contract assets 1 557,041 586,438 Others 14,243 18,747 Less: Non-current (685,488 ) (768,661 ) Current ₩ 1,999,282 ₩ 1,876,352 Other liabilities Advances received 1 ₩ 333,342 ₩ 328,491 Withholdings 99,844 105,415 Unearned revenue 1 65,228 29,593 Lease liabilities 1,211,352 1,143,640 Contract liabilities 1 365,610 384,133 Others 23,298 21,597 Less: Non-current (1,030,117 ) (909,570 ) Current ₩ 1,068,557 ₩ 1,103,299 1 The amounts include adjustments arising from adoption of IFRS 15 (Note 26). |
Assets Held for Sale (Tables)
Assets Held for Sale (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Assets Held for Sale | Details of assets held for sale are as follows: (In millions of Korean won) Amount Land ₩ 172 Buildings and Other 1,026 Total ₩ 1,198 |
Property and Equipment (Tables)
Property and Equipment (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Changes in Property and Equipment | Changes in property and equipment for the years ended December 31, 2019 and 2020, are as follows: 2019 (In millions of Korean won) Land Buildings Machinery Others Construction- in-progress Total Acquisition cost ₩ 1,281,319 ₩ 3,873,074 ₩ 36,327,007 ₩ 1,981,646 ₩ 826,583 ₩ 44,289,629 Less: Accumulated depreciation (including accumulated impairment loss and others) (132 ) (1,865,389 ) (27,851,991 ) (1,503,265 ) (595 ) (31,221,372 ) Beginning, net 1,281,187 2,007,685 8,475,016 478,381 825,988 13,068,257 Changes in accounting policy 1 — (149 ) (12,947 ) (196,932 ) — (210,028 ) Acquisition and capital expenditure 338 4,523 205,359 64,072 3,419,136 3,693,428 Disposal and termination (1,352 ) (4,213 ) (76,457 ) (4,109 ) (1,362 ) (87,493 ) Depreciation — (134,350 ) (2,278,286 ) (89,940 ) — (2,502,576 ) Impairment — (32 ) (41,450 ) (1,751 ) (27 ) (43,260 ) Transfer in (out) 126,066 270,980 2,742,671 16,218 (3,217,044 ) (61,109 ) Transfer to investment properties (33,254 ) (8,081 ) — — — (41,335 ) Transfer to assets held-for-sale (89,330 ) (1,121 ) — — — (90,451 ) Others (21,474 ) 26,822 79,345 1,596 (26,423 ) 59,866 Ending, net ₩ 1,262,181 ₩ 2,162,064 ₩ 9,093,251 ₩ 267,535 ₩ 1,000,268 ₩ 13,785,299 Acquisition cost ₩ 1,262,313 ₩ 4,125,229 ₩ 37,654,635 ₩ 1,612,108 ₩ 1,001,171 ₩ 45,655,456 Less: Accumulated depreciation (including accumulated impairment loss and others) (132 ) (1,963,165 ) (28,561,384 ) (1,344,573 ) (903 ) (31,870,157 ) 1 With the application of IFRS 16, property and equipment were reclassified to right-of-use 2020 (In millions of Korean won) Land Buildings Machinery Others Construction- in-progress Total Acquisition cost ₩ 1,262,313 ₩ 4,125,229 ₩ 37,654,635 ₩ 1,612,108 ₩ 1,001,171 ₩ 45,655,456 Less: Accumulated depreciation (including accumulated impairment loss and others) (132 ) (1,963,165 ) (28,561,384 ) (1,344,573 ) (903 ) (31,870,157 ) Beginning, net 1,262,181 2,162,064 9,093,251 267,535 1,000,268 13,785,299 Acquisition and capital expenditure 25,156 7,249 112,085 47,669 2,959,690 3,151,849 Disposal and termination (1,756 ) (3,367 ) (69,401 ) (3,385 ) (1,027 ) (78,936 ) Depreciation — (135,646 ) (2,343,965 ) (91,164 ) — (2,570,775 ) Impairment — (36 ) (35,271 ) (44,468 ) — (79,775 ) Transfer in (out) 53,238 283,937 2,489,138 28,024 (2,899,197 ) (44,860 ) Transfer to investment properties 6,792 (8,848 ) — — — (2,056 ) Changes in scope of consolidation 56 494 225 43 — 818 Others (11,040 ) 2,175 68,921 1,398 (16,899 ) 44,555 Ending, net ₩ 1,334,627 ₩ 2,308,022 ₩ 9,314,983 ₩ 205,652 ₩ 1,042,835 ₩ 14,206,119 Acquisition cost ₩ 1,334,759 ₩ 4,402,691 ₩ 39,182,265 ₩ 1,619,822 ₩ 1,046,795 ₩ 47,586,332 Less: Accumulated depreciation (including accumulated impairment loss and others) (132 ) (2,094,669 ) (29,867,282 ) (1,414,170 ) (3,960 ) (33,380,213 ) |
Summary of the Details of Property and Equipment Provided | Details of property and equipment provided as collateral as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 Carrying Secured Related line Related Secured party Land and Buildings ₩ 17,097 ₩ 18,705 Borrowings ₩ 4,347 Industrial Bank , K Bank, Inc. Others ₩ 45,851 ₩ 41,681 Borrowings ₩ 3,473 Shinhan (In millions of Korean won) December 31, 2020 Carrying Secured Related line Related Secured party Land and Buildings ₩ 11,644 ₩ 15,502 Borrowings ₩ 3,072 Industrial Korea Bank ₩ 4,142 ₩ 249 Deposits ₩ 249 K Bank, Inc. |
Investment Properties (Tables)
Investment Properties (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Investment Properties | Changes in investment properties for the years ended December 31, 2019 and 2020, are as follows: (In millions of Korean won) 2019 Land Buildings Construction- in-progress Total Acquisition cost ₩ 350,417 ₩ 1,168,379 ₩ 121 ₩ 1,518,917 Less: Accumulated depreciation (1,569 ) (426,264 ) — (427,833 ) Beginning, net ₩ 348,848 ₩ 742,115 ₩ 121 ₩ 1,091,084 Changes in accounting policy 1 — 46,666 — 46,666 Acquisition 148,511 103,774 1,781 254,066 Disposal and termination (285 ) (1,408 ) — (1,693 ) Depreciation — (65,178 ) — (65,178 ) Transfer from property and equipment 33,254 8,081 — 41,335 Transfer and others 23,268 (2,118 ) — 21,150 Ending, net ₩ 553,596 ₩ 831,932 ₩ 1,902 ₩ 1,387,430 Acquisition cost ₩ 555,164 ₩ 1,323,518 ₩ 1,902 ₩ 1,880,584 Less: Accumulated depreciation (including accumulated impairment loss and others) (1,568 ) (491,586 ) — (493,154 ) 1 With the application of IFRS 16, right-of-use-assets (In millions of Korean won) 2020 Land Buildings Construction- in-progress Total Acquisition cost ₩ 555,164 ₩ 1,323,518 ₩ 1,902 ₩ 1,880,584 Less: Accumulated depreciation (1,568 ) (491,586 ) — (493,154 ) Beginning, net ₩ 553,596 ₩ 831,932 ₩ 1,902 ₩ 1,387,430 Acquisition 11,723 7,096 34,243 53,062 Disposal and termination (1,536 ) (243 ) — (1,779 ) Depreciation — (64,531 ) — (64,531 ) Transfer from property and equipment (6,792 ) 8,848 — 2,056 Transfer and others (18,656 ) 469 10,402 (7,785 ) Ending, net ₩ 538,335 ₩ 783,571 ₩ 46,547 ₩ 1,368,453 Acquisition cost ₩ 539,903 ₩ 1,341,326 ₩ 46,547 ₩ 1,927,776 Less: Accumulated depreciation (including accumulated impairment loss and others) (1,568 ) (557,755 ) — (559,323 ) |
Summary of Investment Properties Provided as Collateral | Details of investment properties provided as collateral as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 Carrying Secured Related Related Land and Buildings ₩ 854,874 ₩ 62,896 Deposits ₩ 56,831 Land and Buildings ₩ 1,915 ₩ 3,044 Borrowings ₩ 1,903 (In millions of Korean won) December 31, 2020 Carrying Secured Related Related Land and Buildings ₩ 790,414 ₩ 62,968 Deposits ₩ 56,247 Land and Buildings ₩ 2,861 ₩ 3,434 Borrowings ₩ 2,928 |
Intangible Assets (Tables)
Intangible Assets (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Intangible Assets | Changes in intangible assets for the years ended December 31, 2019 and 2020, are as follows: 2019 (In millions of Korean won) Goodwill Development Software Frequency usage rights Others Total Acquisition cost 542,074 1,680,372 947,312 3,641,231 1,253,281 8,064,270 Less: Accumulated amortization (including accumulated impairment loss and others) (306,016 ) (1,345,262 ) (781,368 ) (1,484,731 ) (739,769 ) (4,657,146 ) Beginning, net ₩ 236,058 ₩ 335,110 ₩ 65,944 ₩ 2,156,500 ₩ 513,512 ₩ 3,407,124 Changes in accounting policy 1 — — — — (26,207 ) (26,207 ) Acquisition and capital expenditure — 47,903 30,965 — 99,826 178,694 Disposal and termination — (3,019 ) (1,267 ) (284 ) (11,109 ) (15,679 ) Amortization — (115,839 ) (68,222 ) (399,382 ) (77,262 ) (660,705 ) Impairment (605 ) (1,333 ) (1,807 ) (3,035 ) (55,118 ) (61,898 ) Others 117 9,812 11,768 142 (9,131 ) 12,708 Ending, net ₩ 235,570 ₩ 272,634 ₩ 137,381 ₩ 1,753,941 ₩ 434,511 ₩ 2,834,037 Acquisition cost 541,596 1,661,372 978,139 3,622,327 1,193,048 7,996,482 Less: Accumulated amortization (including accumulated impairment loss and others) (306,026 ) (1,388,738 ) (840,758 ) (1,868,386 ) (758,537 ) (5,162,445 ) 1 With the application of IFRS 16, intangible assets were reclassified to right-of-use 2020 (In millions of Korean won) Goodwill Development Software Frequency usage rights Others 1 Total Acquisition cost 541,596 1,661,372 978,139 3,622,327 1,193,048 7,996,482 Less: Accumulated amortization (including accumulated impairment loss and others) (306,026 ) (1,388,738 ) (840,758 ) (1,868,386 ) (758,537 ) (5,162,445 ) Beginning, net ₩ 235,570 ₩ 272,634 ₩ 137,381 ₩ 1,753,941 ₩ 434,511 ₩ 2,834,037 Acquisition and capital expenditure — 26,990 37,077 — 101,563 165,630 Disposal and termination — (1,849 ) (105 ) — (11,866 ) (13,820 ) Amortization — (104,938 ) (54,191 ) (399,348 ) (69,677 ) (628,154 ) Impairment — — (1,776 ) (193,194 ) (16,667 ) (211,637 ) Changes in scope of consolidation — 575 77 — 3,690 4,342 Others (5,485 ) 87,587 27,537 (736 ) (98,043 ) 10,860 Ending, net ₩ 230,085 ₩ 280,999 ₩ 146,000 ₩ 1,160,663 ₩ 343,511 ₩ 2,161,258 Acquisition cost 536,093 1,767,422 1,053,980 3,373,095 1,167,735 7,898,325 Less: Accumulated amortization (including accumulated impairment loss and others) (306,008 ) (1,486,423 ) (907,980 ) (2,212,432 ) (824,224 ) (5,737,067 ) 1 The carrying amount of membership rights and others, excluding goodwill, with indefinite useful life not subject to amortization is ₩ ₩ |
Summary of Goodwill Allocated to Each Cash-Generation Unit | As at December 31, 2020, goodwill allocated to each cash-generating unit is as follows: (In millions of Korean won) Operating Segment Cash generating Unit Amount ICT 6 Mobile services 1 ₩ 65,057 Finance BC Card Co., Ltd. 2 41,234 Others GENIE Music Corporation (KT Music Corporation) 3 50,214 PlayD Co., Ltd. (N SEARCH MARKETING Co., Ltd.) 4 42,745 KT Telecop Co., Ltd. 5 15,418 KT MOS Bukbu Co., Ltd and others 15,417 Total ₩ 230,085 1 The recoverable amounts of mobile services business are calculated based on value-in 2 The recoverable amounts of BC Card Co., Ltd. are calculated based on value-in 3 The recoverable amount of GENIE Music Corporation (KT Music Corporation) is calculated based on fair value less cost to sell. 4 The recoverable amount of PlayD Co., Ltd. (N SEARCH MARKETING Co., Ltd.) is calculated based on fair value less cost to sell. 5 The recoverable amounts of KT Telecop Co., Ltd. are calculated based on value-in 6 The Group performed its impairment assessment for long-lived assets attributed to the Information and Communication Technology (“ICT”) reporting segment, which includes the Cash-Generating Units of Mobile, Fixed line, and Corporate Services (the “CGUs”). The Group compared the carrying value of each CGU to the estimated recoverable amount. The recoverable amounts of ICT reporting segment are calculated based on value-in |
Investments in Associates and_2
Investments in Associates and Joint Ventures (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Details of Associates | Details of associates as at December 31, 2019 and 2020, are as follows: Percentage of ownership (%) Location Closing month 2019 2020 Korea Information & Technology Fund 33.3 % 33.3 % Korea December 31, 2019, KT-IBKC 1 50.0 % 50.0 % Korea December 31, 2019, KT-CKP 49.7 % — Korea December 31, 2019, K Bank Inc. 10.0 % 34.0 % Korea December 31, 2019, Hyundai Robotics Co., Ltd. 2 — 10.0 % Korea December 31, 2019, 1 At the end of the reporting period, although the Group owns 50% ownership, the equity method of accounting has been applied as the Group, which is a limited partner of the investment fund, because the Group cannot participate in determining the operating and financial policies. 2 At the end of the reporting period, although the Group has less than 20% ownership in ordinary share, this entity is included in investments in associates as the Group has a significant influence in determining the operating and financial policies. |
Summary of Changes in Investments in Associates and Joint Ventures | Changes in investments in associates and joint ventures for the years ended December 31, 2019 and 2020, are as follows: 2019 (In millions of Korean won) Beginning Acquisition (Disposal) Share of net profit 1 Others Ending Korea Information & Technology Fund ₩ 148,255 ₩ — ₩ 17,956 ₩ (2,236 ) ₩ 163,975 KT-SB 4,470 (4,470 ) — — — KT-IBKC 9,961 3,750 389 — 14,100 KT-CKP 281 (174 ) 27 — 134 K Bank Inc. 52,655 21,782 (28,865 ) (414 ) 45,158 Others 1 56,785 (7,867 ) 7,241 (11,866 ) 44,293 ₩ 272,407 ₩ 13,021 ₩ (3,252 ) ₩ (14,516 ) ₩ 267,660 2020 (In millions of Korean won) Beginning Acquisition (Disposal) Share of net profit 1 Others Ending Korea Information & Technology Fund ₩ 163,975 ₩ — ₩ 12,205 ₩ (6,025 ) ₩ 170,155 KT-IBKC 14,100 — 2,090 — 16,190 KT-CKP 134 (134 ) — — — K Bank Inc. 45,158 195,011 (30,209 ) (1,688 ) 208,272 Hyundai Robotics Co., Ltd. — 50,000 (64 ) 1,000 50,936 Others 1 44,293 28,400 34,298 5,337 112,328 ₩ 267,660 ₩ 273,277 ₩ 18,320 ₩ (1,376 ) ₩ 557,881 1 KT investment Co., Ltd., a subsidiary of the Group, recognized its share in net profit from associates and joint ventures as operating revenue and expense. These include its share in net gain from associates and joint ventures of ₩ ₩ ₩ |
Summary of Financial Information of Associates and Joint Ventures | Summarized financial information of associates and joint ventures as at and for the years ended December 31, 2019 and 2020, is as follows: (In millions of Korean won) December 31, 2019 Current Non-current assets Current Non-current liabilities Korea Information & Technology Fund ₩ 113,233 ₩ 378,691 ₩ — ₩ — KT-IBKC 28,200 — — — KT-CKP 3 267 — — K Bank Inc. 2,480,065 78,566 2,350,375 3,784 (In millions of Korean won) December 31, 2020 Current Non-current assets Current Non-current liabilities Korea Information & Technology Fund ₩ 107,652 ₩ 402,812 ₩ — ₩ — KT-IBKC Future Investment Fund 1 32,379 — — — K Bank Inc. 4,255,620 74,193 3,752,838 88,155 Hyundai Robotics Co., Ltd. 315,886 125,619 80,615 59,324 (In millions of Korean won) 2019 Operating Profit (loss) Other Total Dividends Korea Information & Technology Fund ₩ 70,577 ₩ 53,867 ₩ 6,132 ₩ 59,999 ₩ 4,280 KT-IBKC Future Investment Fund 1 1,694 779 — 779 — KT-CKP New Media Investment Fund 56 55 — 55 — K Bank Inc. 92,720 (100,773 ) (23 ) (100,796 ) — (In millions of Korean won) 2020 Operating Profit (loss) Other Total Dividends Korea Information & Technology Fund ₩ 54,473 ₩ 36,615 ₩ 9,647 ₩ 46,262 ₩ 9,241 KT-IBKC 6,551 4,179 — 4,179 — K Bank Inc. 80,301 (105,374 ) (1,126 ) (106,500 ) — Hyundai Robotics Co., Ltd. 195,311 (642 ) 11,573 10,931 — |
Summary of Reconciliation of Carrying Amount of Interests in the Associates and Joint Ventures | Details of a reconciliation of the summarized financial information to the carrying amount of interests in the associates and joint ventures as at and for the years end December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 Net assets (a) Percentage of Share in (c)=(a)x(b) Intercompany Book (c)+(d) Korea Information & Technology Fund ₩ 491,924 33.30 % ₩ 163,975 ₩ — ₩ 163,975 KT-IBKC Future Investment Fund 1 28,200 50.00 % 14,100 — 14,100 KT-CKP 270 49.70 % 134 — 134 K Bank Inc. 1 204,472 10.00 % 45,158 — 45,158 1 12.1% of non-voting (In millions of Korean won) December 31, 2020 Net assets (a) Percentage of Share in net (c)=(a)x(b) Intercompany Book amount (c)+(d) Korea Information & Technology Fund ₩ 510,464 33.30 % ₩ 170,155 ₩ — ₩ 170,155 KT-IBKC 32,379 50.00 % 16,190 — 16,190 K Bank Inc. 1 488,819 34.00 % 166,198 42,074 208,272 Hyundai Robotics Co., Ltd. 301,566 10.00 % 30,157 20,779 50,936 1 12.1% of non-voting |
Trade and Other Payables (Table
Trade and Other Payables (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Trade and Other Payables | Details of trade and other payables as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, December 31, Current liabilities Trade payables ₩ 1,304,795 ₩ 1,239,717 Other payables 6,292,683 4,970,382 Total ₩ 7,597,478 ₩ 6,210,099 Non-current Trade payables ₩ 1,733 ₩ 1,528 Other payables 1,080,487 806,012 Total ₩ 1,082,220 ₩ 807,540 |
Summary of Other Payables | Details of other payables as at December 31, 2019 and 2020 are as follows: (In millions of Korean won) December 31, December 31, Non-trade 1 ₩ 5,275,224 ₩ 3,841,227 Accrued expenses 987,624 933,978 Operating deposits 910,045 803,904 Others 200,277 197,285 Less: non-current (1,080,487 ) (806,012 ) Current ₩ 6,292,683 ₩ 4,970,382 1 Settlement payables of BC Card Co., Ltd., a subsidiary of the Group, of ₩ ₩ |
Borrowings (Tables)
Borrowings (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Borrowings | Debentures (In millions of Korean won and thousands of foreign currencies) December 31, 2019 December 31, 2020 Type Maturity Annual interest Foreign Korean Foreign Korean MTNP notes 1 Sept. 7, 2034 6.50% USD 100,000 ₩ 115,780 USD 100,000 ₩ 108,800 MTNP notes July 18, 2026 2.50% USD 400,000 463,120 USD 400,000 435,200 MTNP notes Aug. 7, 2022 2.63% USD 400,000 463,120 USD 400,000 435,200 FR notes Aug. 20, 2020 — USD 200,000 231,560 — — FR notes 2 Aug. 20, 2023 LIBOR(3M)+0.900% USD 100,000 115,780 USD 100,000 108,800 MTNP notes July 6, 2020 — JPY 4,000,000 42,539 — — MTNP notes July 6, 2021 0.38% JPY 16,000,000 170,155 JPY 16,000,000 168,682 MTNP notes Nov. 13, 2020 — JPY 30,000,000 319,041 — — MTNP notes July 19, 2022 0.22% JPY 29,600,000 314,787 JPY 29,600,000 312,061 MTNP notes July 19, 2024 0.33% JPY 400,000 4,254 JPY 400,000 4,217 FR notes 2 Nov. 1, 2024 LIBOR(3M)+0.980% USD 350,000 405,230 USD 350,000 380,800 FR notes 2 June 19, 2023 SOR(6M)+0.500% — — SGD 284,000 233,510 MTNP notes Sept. 1, 2025 1.00% — — USD 400,000 435,200 The 180-2rd Apr. 26, 2021 4.71% — 380,000 — 380,000 The 181-3rd Aug. 26, 2021 4.09% — 250,000 — 250,000 The 182-2nd Oct. 28, 2021 4.31% — 100,000 — 100,000 The 183-2nd Dec. 22, 2021 4.09% — 90,000 — 90,000 The 183-3rd Dec. 22, 2031 4.27% — 160,000 — 160,000 The 184-2nd Apr. 10, 2023 2.95% — 190,000 — 190,000 The 184-3rd Apr. 10, 2033 3.17% — 100,000 — 100,000 The 185-2nd Sept. 16, 2020 — — 300,000 — — The 186-3rd June 26, 2024 3.42% — 110,000 — 110,000 The 186-4th June 26, 2024 3.70% — 100,000 — 100,000 The 187-3rd Sept. 2, 2024 3.31% — 170,000 — 170,000 The 187-4th Sept. 2, 2034 3.55% — 100,000 — 100,000 The 188-1st Jan. 29, 2020 — — 160,000 — — The 188-2nd Jan. 29, 2025 2.45% — 240,000 — 240,000 The 188-3rd Jan. 29, 2035 2.71% — 50,000 — 50,000 The 189-2nd Jan. 28, 2021 1.95% — 130,000 — 130,000 The 189-3rd Jan. 28, 2026 2.20% — 100,000 — 100,000 The 189-4th Jan. 28, 2036 2.35% — 70,000 — 70,000 The 190-1st Jan. 29, 2021 2.55% — 110,000 — 110,000 The 190-2nd Jan. 30, 2023 2.75% — 150,000 — 150,000 The 190-3rd Jan. 30, 2028 2.95% — 170,000 — 170,000 The 190-4th Jan. 30, 2038 2.93% — 70,000 — 70,000 The 191-1st Jan. 14, 2022 2.05% — 220,000 — 220,000 The 191-2nd Jan. 15, 2024 2.09% — 80,000 — 80,000 The 191-3rd Jan. 15, 2029 2.16% — 110,000 — 110,000 The 191-4th Jan. 14, 2039 2.21% — 90,000 — 90,000 The 192-1st Oct. 11, 2022 1.55% — 340,000 — 340,000 The 192-2nd Oct. 11, 2024 1.58% — 100,000 — 100,000 The 192-3rd Oct. 11, 2029 1.62% — 50,000 — 50,000 The 192-4th Oct. 11, 2039 1.67% — 110,000 — 110,000 The 193-1st June 16, 2023 1.17% — — — 150,000 The 193-2nd June 17, 2025 1.43% — — — 70,000 The 193-3rd June 17, 2030 1.61% — — — 20,000 The 193-4th June 15, 2040 1.71% — — — 60,000 The 148th Won-denominated June 23, 2023 1.51% — — — 100,000 Subtotal 7,045,366 6,962,470 Less: Current portion (1,052,032 ) (1,228,283 ) Discount on bonds (20,780 ) (19,847 ) Total ₩ 5,972,554 ₩ 5,714,340 1 As at December 31, 2020, the Controlling Company has outstanding notes in the amount of USD 100 million with fixed interest rates under Medium Term Note Program (“MTNP”) registered in the Singapore Stock Exchange, which allowed issuance of notes of up to USD 2,000 million. However, the MTN Program has been suspended since 2007. 2 Libor (3M) and SOR (6M) are approximately 0.238% and 0.185%, respectively as at December 31, 2020. |
Summary of Korean Won and Foreign Currency Borrowings | Convertible bonds (In millions of Korean won and thousands of foreign currencies) December 31, 2019 Type Issuance date Maturity Annual interest rate December 31, December 31, The 1st CB(Private) 1,2 Jun. 5, 2020 Jun. 5, 2025 0.00 % ₩ — ₩ 8,000 Redemption premium — 2,267 Bond discount issuance — (4,644 ) Subtotal ₩ — ₩ 5,623 Current portion ₩ — ₩ — Total ₩ — ₩ 5,623 1 Common shares of Storywiz are subject to conversion (appraisal period: June 5, 2021~ May 4, 2025). 2 Nominal interest rate and maturity yield is approximately 0% and 5% and will be settled on maturity |
Summary of Short-term Borrowings | Short-term borrowings (In millions of Korean won) December 31, December 31, Type Financial institution Annual interest rates Operational NongHyup Bank 1.740% ~ 2.360% ₩ 15,000 ₩ 40,189 Shinhan Bank 2.460% ~ 2.960% 57,500 22,500 Shinhan Bank CD91+1.431% — 10,000 Woori Bank 3.57% — 1,900 Korea Development Bank 3.34% 10,000 10,000 SooHyup Bank — 1,000 — Industrial Bank of Korea 1.74% — 200 Hana Bank 4.20% — 11,000 Total ₩ 83,500 ₩ 95,789 |
Summary of Long-term Borrowings | Long-term borrowings (In millions of Korean won and thousands of foreign currencies) December 31, 2019 December 31, 2020 Financial institution Type Annual interest rates Foreign currency Korean won Foreign currency Korean won Export-Import Bank of Korea Inter-Korean Cooperation Fund 1 1.50% — ₩ 3,454 — ₩ 2,961 Industrial Bank of Korea General loans 2.98% — 6,000 — 6,000 Shinhan Bank General loans 1.94% — 5,000 — 5,000 Facility loans 2 LIBOR(3M)+1.340% USD 25,918 30,008 USD 25,918 28,199 General loans 2 LIBOR(3M)+1.650% USD 3,000 3,473 USD 8,910 9,694 General loans 2 LIBOR(3M)+2.130% — — USD 25,000 27,200 CA-CIB Long-term CP 1.26% — — — 100,000 NongHyup Bank Facility loans 2.00% — 79 — 54 Korea Development Bank General loans 3.02% — 10,000 — 10,000 General loans 3.31% — 30,000 — 30,000 Others Kookmin Bank and other 2 LIBOR(3M)+1.850% USD 87,940 101,816 USD 48,855 53,155 — — 950 — — Subtotal ₩ 190,780 ₩ 272,263 Less: Current portion ₩ (50,192) ₩ (94,042) Total ₩ 140,588 ₩ 178,221 1 The above Inter-Korean Cooperation Fund is repayable in installments over 13 years after a seven-year grace period. 2 LIBOR(3M) is approximately 0.238% as at December 31, 2020. |
Summary of Repayment of Borrowings Including the Current Liabilities | Repayment schedule of the Group’s borrowings including the portion of current liabilities as at December 31, 2020 is as follows: (In millions of Korean won) Debentures Borrowings Total In local In foreign Sub- total In local In foreign Sub- total Jan 1, 2021 ~ Dec 31, 2021 ₩ 1,060,000 ₩ 168,682 ₩ 1,228,682 ₩ 147,307 ₩ 42,524 ₩ 189,831 ₩ 1,418,513 Jan 1, 2022 ~ Dec 31, 2022 560,000 747,261 1,307,261 518 38,830 39,348 1,346,609 Jan 1, 2023 ~ Dec 31, 2023 590,000 342,310 932,310 100,500 36,894 137,394 1,069,704 Jan 1, 2024 ~ Dec 31, 2024 460,000 385,017 845,017 493 — 493 845,510 After Jan. 1, 2025 1,678,000 979,200 2,657,200 986 — 986 2,658,186 ₩ 4,348,000 ₩ 2,622,470 ₩ 6,970,470 ₩ 249,804 ₩ 118,248 ₩ 368,052 ₩ 7,338,522 |
Provisions (Tables)
Provisions (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Changes in Provisions | Changes in provisions for the years ended December 31, 2019 and 2020, are as follows: 2019 (In millions of Korean won) Litigation Restoration cost Others Total Beginning balance ₩ 58,760 ₩ 118,828 ₩ 104,288 ₩ 281,876 Increase (Transfer) 42,684 6,591 17,328 66,603 Usage (35,640 ) (5,394 ) (15,851 ) (56,885 ) Reversal (1,563 ) (6,736 ) (29,133 ) (37,432 ) Ending balance ₩ 64,241 ₩ 113,289 ₩ 76,632 ₩ 254,162 Current ₩ 64,241 ₩ 37,906 ₩ 73,465 ₩ 175,612 Non-current — 75,383 3,167 78,550 2020 (In millions of Korean won) Litigation Restoration cost Others Total Beginning balance ₩ 64,241 ₩ 113,289 ₩ 76,632 ₩ 254,162 Increase (Transfer) 17,064 (1,933 ) 17,873 33,004 Usage (3,948 ) (2,990 ) (2,266 ) (9,204 ) Reversal (857 ) (3,023 ) (23,212 ) (27,092 ) Changes in scope of consolidation — 424 898 1,322 Ending balance ₩ 76,500 ₩ 105,767 ₩ 69,925 ₩ 252,192 Current ₩ 76,500 ₩ 22,343 ₩ 67,147 ₩ 165,990 Non-current — 83,424 2,778 86,202 |
Net Defined Benefit Liabiliti_2
Net Defined Benefit Liabilities (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Statement [LineItems] | |
Summary of Amount Recognized in the Statements of Financial Position and Defined Benefit Obligations | The amounts recognized in the statements of financial position are determined as follows: (In millions of Korean won) December 31, 2019 December 31, 2020 Present value of defined benefit obligations ₩ 2,427,351 ₩ 2,556,712 Fair value of plan assets (2,069,710 ) (2,189,375 ) Liabilities ₩ 365,663 ₩ 378,087 Assets in the statement of financial position ₩ 8,022 ₩ 10,750 |
Summary of Changes in the Defined Benefit Obligations | Changes in the defined benefit obligations for the years ended December 31, 2019 and 2020, are as follows: (In millions of Korean won) 2019 2020 Beginning ₩ 2,201,876 ₩ 2,427,351 Current service cost 243,598 248,047 Interest expense 47,403 45,083 Benefit paid (100,663 ) (258,866 ) Changes due to settlements of plan 910 1,075 Remeasurements: Actuarial gains and losses arising from changes in demographic assumptions 39 5,191 Actuarial gains and losses arising from changes in financial assumptions 11,773 17,077 Actuarial gains and losses arising from experience adjustments 19,465 57,703 Changes in scope of consolidation 2,950 14,051 Ending ₩ 2,427,351 ₩ 2,556,712 Changes in the fair value of plan assets for the years ended December 31, 2019 and 2020, are as follows: (In millions of Korean won) 2019 2020 Beginning ₩ 1,643,046 ₩ 2,069,710 Interest income 35,386 38,590 Remeasurements: Return on plan assets (excluding amounts included in interest income) (2,537 ) 2,589 Benefits paid (87,119 ) (213,953 ) Employer contributions 476,916 284,243 Changes in scope of consolidation 4,018 8,196 Ending ₩ 2,069,710 ₩ 2,189,375 |
Summary of Amounts Recognized in the Operating expenses of the Consolidated Statements of Operations | Amounts recognized in the ‘Operating expenses’ of the consolidated statements of operations for the years ended December 31, 2018, 2019 and 2020, are as follows: (In millions of Korean won) 2018 2019 2020 Current service cost ₩ 225,667 ₩ 243,598 ₩ 248,047 Net Interest cost 10,458 12,017 6,494 Past service cost 9,801 910 1,075 Transfer out (13,881 ) (16,215 ) (16,514 ) Total expenses ₩ 232,045 ₩ 240,310 ₩ 239,102 |
Summary of Principal Actuarial Assumptions | Principal actuarial assumptions used are as follows: December 31, December 31, December 31, Discount rate 2.32 % 1.97 % 1.93 % Future salary increase 5.08 % 4.92 % 4.88 % |
Summary of Expected Maturity Analysis of Undiscounted Pension Benefits | The expected maturity analysis of undiscounted pension benefits as at December 31, 2020, is as follows: (In millions of Korean won) Less than 1 year Between Between 2-5 Over 5 years Total Pension benefits ₩ 232,550 ₩ 271,366 ₩ 794,840 ₩ 2,284,517 ₩ 3,583,273 |
Defined benefit obligations [member] | |
Statement [LineItems] | |
Summary of Sensitivity of the Defined Benefit Obligations | The sensitivity of the defined benefit obligations as at December 31, 2020, to changes in the principal assumptions is: (In percentage, in millions of Korean won) Effect on defined benefit obligation Changes in Increase in Decrease in Discount rate 0.5% point ₩ ₩ 93,254 Salary growth rate 0.5% point 85,344 (79,970 ) |
Commitments and Contingencies (
Commitments and Contingencies (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary Of Major Commitments With Local Financial Institutions | As at December 31, 2020, major commitments with local financial institutions are as follows: (In millions of Korean won and Financial institution Currency Limit Used Bank overdraft Kookmin Bank and others KRW 1,502,000 — Inter-Korean Cooperation Fund Export-Import Bank of Korea KRW 37,700 2,714 Insurance for Economic Cooperation project Export-Import Bank of Korea KRW 3,240 1,732 Collateralized loan on electronic accounts receivable-trade Kookmin Bank and others KRW 522,849 23,475 Plus electronic notes payable Industrial Bank of Korea KRW 50,000 331 Loans for working capital Korea Development Bank and others KRW 243,593 152,243 Facility loans Shinhan Bank and others KRW 100,123 55 Kookmin Bank and others USD 212,000 48,855 Derivatives transaction limit Korea Development Bank KRW 100,000 22,027 Woori Bank and others USD 69,054 44,616 Total KRW 2,559,505 202,577 USD 281,054 93,471 |
Summary of Guarantees Received from Financial Institutions | As at December 31, 2020, guarantees received from financial institutions are as follows: (In millions of Korean won and Financial institution Currency Limit Performance guarantee Seoul Guarantee Insurance and others KRW 208,386 Performance guarantee Korea Development Bank and others USD 8,569 Guarantee for import letters of credit Industrial Bank of Korea and others USD 5,000 Guarantee for payment in won currency Shinhan Bank and others KRW 70,962 Refund guarantee for advances received Korea Development Bank USD 8,536 Guarantee for payment in foreign currency KEB Hana Bank and others USD 40,840 Comprehensive credit line KEB Hana Bank and others KRW 41,100 Comprehensive credit line KEB Hana Bank and others USD 8,700 Bid guarantee KEB Hana Bank USD 400 Bid guarantee Korea Software Financial KRW 80,246 Performance guarantee /warranty guarantee KRW 393,019 Guarantee for advance payments/others KRW 388,656 Warranty guarantee Seoul Guarantee Insurance KRW 1,305 Performance guarantee KRW 9,690 Guarantees for licensing KRW 7,748 Guarantees for depositions KRW 3,792 Merchant business guarantee insurance KRW 237 Total KRW 1,205,141 USD 72,045 |
Summary Of Guarantees Provided By The Group For Third Parties | As at December 31, 2020, guarantees provided by the Group to a third party, are as follows: (In millions of Korean won) Subject to payment Creditor Limit Used Period KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) 1 Gasan Solar Power Plant Inc. Shinhan Bank 4,700 1,371 Jan. 08, 2025 KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) 1 SPP Inc. Suhyup Bank 3,250 932 Feb. 16, 2024 KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) 1 Korea Cell Inc. Suhyup Bank 3,250 880 Feb. 16, 2024 KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) 1 San-Ya Association Corporation Suhyup Bank 3,250 888 Feb. 16, 2024 KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) 1 Ciocanesti Korea Co., Ltd. NH Investment & 7,600 7,600 Jun. 8, 2017 KT Hitel Co., Ltd. Shinhan Bank Cash payers 700 — Apr. 17, 2020 ~ Apr. 16, 2021 Nasmedia Co., Ltd. Stockholders Association Members Korea Securities 5,654 2,735 — 1 According to the above payment guarantee, KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.), a subsidiary of the Group, will have an obligation of repayment if the principal borrower does not repay the borrowing. |
Leases (Tables)
Leases (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
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Summary of balance sheet information about leases for lessee | The consolidated statement of financial position shows the following amounts relating to leases: (In millions of Korean won) December 31, December 31, Right-of-use Property and building ₩ 1,020,619 ₩ 1,073,207 Machinery and track facilities 140,296 42,127 Others 107,414 101,845 Total ₩ 1,268,329 ₩ 1,217,179 Investment property (buildings) 50,010 19,456 (In millions of Korean won) December 31, December 31, Lease liabilities 1 Current ₩ 392,433 ₩ 345,224 Non-Current 818,919 798,416 Total ₩ 1,211,352 ₩ 1,143,640 1 Included in the line items ‘Other current liabilities and other non-current |
Summary of statement of profit or loss information about leases for lessee | The consolidated statements of profit or loss show the following amounts relating to leases: (In millions of Korean won) December 31, December 31, Depreciation of Right-of-use Property and building ₩ 300,773 ₩ 290,168 Machinery and track facilities 89,452 58,419 Others 52,402 55,588 Total ₩ 442,627 ₩ 404,175 Depreciation of Investment Properties ₩ 21,809 ₩ 19,113 Interest expense relating to lease liabilities 55,001 44,091 Expense relating to short-term leases 14,718 10,998 Expense relating to leases of low-value 26,575 25,894 Expense relating to variable lease payments not included in lease liabilities 5,993 8,096 |
Share Capital (Tables)
Share Capital (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
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Summary of Share Capital | As at December 31, 2019 and 2020, the Group’s number of authorized shares is one billion. December 31, 2019 December 31, 2020 Number of issued shares Par value per share (Korean won) Ordinary (in millions of Korean won) Number of issued Par value per share (Korean won) Ordinary (in millions of Korean won) Ordinary shares 1 261,111,808 ₩ ₩ 261,111,808 ₩ ₩ 1 The Group retired 51,787,959 treasury shares against retained earnings. Therefore, the ordinary shares amount differs from the amount resulting from multiplying the number of shares issued. |
Retained Earnings (Tables)
Retained Earnings (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
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Summary of Retained Earnings | Details of retained earnings as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, December 31, Legal reserve 1 ₩ 782,249 ₩ 782,249 Voluntary reserves 2 4,651,362 4,651,362 Unappropriated retained earnings 6,157,305 6,721,809 Total ₩ 11,590,916 ₩ 12,155,420 1 The Commercial Code of the Republic of Korea requires the Controlling Company to appropriate, as a legal reserve, an amount equal to a minimum of 10% of cash dividends paid until such reserve equals 50% of its issued share capital. The reserve is not available for the payment of cash dividends, but may be transferred to share capital with the approval of the Controlling Company’s Board of Directors or used to reduce accumulated deficit, if any, with the ratification of the Controlling Company’s majority shareholders. 2 The provision of research and development of human resources is separately accumulated with tax reserve fund during earned surplus disposal by Tax Reduction and Exemption Control Act of Korea. Reversal of this provision can be paid out as dividends according to related tax law. |
Accumulated Other Comprehensi_2
Accumulated Other Comprehensive Income and Other Components of Equity (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
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Summary of Accumulated Other Comprehensive Income | As at December 31, 2019 and 2020, the details of the Controlling Company’s accumulated other comprehensive income are as follows: (In millions of Korean won) December 31, December 31, Changes in investments in associates and joint ventures ₩ 1,556 ₩ 16,257 Loss on derivatives valuation (7,624 ) 19,809 Gain on valuation of financial assets at fair value through other comprehensive income 211,573 61,438 Exchange differences on translation for foreign operations (10,571 ) (11,453 ) Total ₩ 194,934 ₩ 86,051 |
Summary of Changes in Accumulated Other Comprehensive Income | Changes in accumulated other comprehensive income for the years ended December 31, 2019 and 2020, are as follows: 2019 (In millions of Korean won) Beginning Increase/ decrease Reclassification to gain or loss Ending Changes in investments in associates and joint ventures ₩ (871 ) ₩ 2,427 ₩ — ₩ 1,556 Gain or loss on derivatives valuation (30,474 ) 67,534 (44,684 ) (7,624 ) Gain on valuation of financial assets at fair value through other comprehensive income 96,704 114,869 — 211,573 Exchange differences on translation for foreign operations (15,201 ) 4,630 — (10,571 ) Total ₩ 50,158 ₩ 189,460 ₩ (44,684 ) ₩ 194,934 (In millions of Korean won) 2020 Beginning Increase/ decrease Reclassification to gain or loss Ending Changes in investments in associates and joint ventures ₩ 1,556 ₩ 14,701 ₩ — ₩ 16,257 Gain or loss on derivatives valuation (7,624 ) (83,998 ) 111,431 19,809 Gain on valuation of financial assets at fair value through other comprehensive income 211,573 (150,135 ) — 61,438 Exchange differences on translation for foreign operations (10,571 ) (882 ) — (11,453 ) Total ₩ 194,934 ₩ ) ₩ 111,431 ₩ 86,051 |
Summary of Other Components of Equity | The Group’s other components of equity as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, December 31, Treasury stock 1 ₩ ₩ Gain or loss on disposal of treasury stock 2 1,229 (17,579 ) Share-based payments 7,769 5,901 Others 3 (353,243 ) (340,882 ) Total ₩ ) ₩ ) 1 During the year ended December 31, 2020, the Group acquired 4,550,000 treasury shares and granted 1,150,580 treasury shares as share-based payment. 2 The amount directly reflected in equity is ₩7,288 million (2019: ₩603 million) for the year ended December 31, 2020. 3 Profit or loss incurred from transactions with non-controlling |
Summary of Treasury Stock | As at December 31, 2019 and 2020 December 31, December 31, Number of shares (in shares) 15,870,258 19,269,678 Amounts (In millions of Korean won) ₩ 825,838 ₩ 882,224 |
Share-based Payments (Tables)
Share-based Payments (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Details of Share-Based Payments | Details of share-based payments as at December 31, 2020, are as follows: (In share) 14th grant Grant date June 16, 2020 Grantee CEOs, internal directors, external directors, executives Vesting conditions Service condition: 1 year Non-market Fair value per option (in Korean won) ₩ Total compensation costs (in Korean won) ₩ Estimated exercise date (exercise date) During 2021 Valuation method Fair value method (In share) Employee wage negotiation Grant date September 21, 2020 Grantee All employees Vesting conditions Current employees as of September 21, 2020 Fair value per option (in Korean won) ₩ Total compensation costs (in Korean won) ₩ Estimated exercise date (exercise date) December 22, 2020 Valuation method Fair value method |
Summary of Changes in the Number of Stock Options and the Weighted-Average Exercise Price | Changes in the number of stock options and the weighted-average exercise price as at December 31, 2019 and 2020, are as follows: 2019 Beginning Grant Expired Exercised 1 Ending Number of 12th grant 353,325 — 256,543 96,782 — — 13th grant — 372,023 — — 372,023 — Total 353,325 372,023 256,543 96,782 372,023 — 2020 Beginning Grant Expired Exercised 1 Ending Number of 13th grant 372,023 — 241,548 130,475 — — 14th grant — 398,856 — — 398,856 — Employee wage negotiation — 1,020,105 — 1,020,105 — — Total 372,023 1,418,961 241,548 1,150,580 398,856 — 1 The weighted average price of ordinary shares at the time of exercise in 2020 was ₩ ₩ |
Revenue from Contracts with C_2
Revenue from Contracts with Customers and Relevant Contract Assets and Liabilities (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
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Detail Explanation of Revenue in the consolidated Statement of operations | The Group has recognized the following amounts relating to revenue in the Consolidated Statements of Operations: (In millions of Korean won) 2018 2019 2020 Revenue from contracts with customers ₩ 23,012,257 ₩ 24,441,122 ₩ 23,895,631 Revenue from other sources 423,793 458,067 545,016 Total revenue ₩ 23,436,050 ₩ 24,899,189 ₩ 24,440,647 |
Detail Explanation of Operating Revenue | Operating revenues for the years ended December 31, 2018, 2019 and 2020 are as follows: (In millions of Korean won) 2018 2019 2020 Mobile services ₩ 6,827,685 ₩ 6,795,124 ₩ 6,805,218 Fixed-line services 4,869,253 4,866,698 4,827,015 Fixed-line and VoIP telephone services 1,708,319 1,578,546 1,463,553 Broadband Internet access services 2,112,763 2,177,447 2,256,188 Data communication services 1,048,171 1,110,705 1,107,274 Media and content 2,261,808 2,516,256 2,637,691 Financial services 3,444,917 3,641,655 3,493,920 Sale of goods 3,288,911 4,194,168 3,593,127 Others 2,743,476 2,885,288 3,083,676 Total ₩ 23,436,050 ₩ 24,899,189 ₩ 24,440,647 |
Detail Analysis of Contract with Customer Assets and Liabilities | The contract assets and liabilities recognized in relation to the revenues from contracts with customers are as follows: (In millions of Korean won) December 31, December 31, Contract assets 1 ₩ 655,329 ₩ 672,672 Contract liabilities 1 413,442 413,707 Deferred revenue 2 ₩ 92,557 ₩ 89,694 1 The Group recognized contract assets of ₩ ₩ ₩ ₩ 2 Deferred revenue recognized relating to government grant is excluded. |
Detail Analysis of Contract Costs Recognized as Assets | The contract costs recognized as assets are as follows: (In millions of Korean won) December 31, December 31, Incremental cost of contract establishment ₩ 1,764,009 ₩ 1,726,191 Cost of Contract performance 85,234 78,757 |
Detail of Revenue Arising from Carried-Forward Contract Liabilities | The recognized revenue arising from carried-forward contract liabilities from prior year is as follows: (In millions of Korean won) 2018 2019 2020 Revenue recognized that was included in the contract liability balance at the beginning of the year Allocation of the transaction price ₩ 183,905 ₩ 266,478 ₩ 251,975 Deferred revenue of joining/installment fee 39,975 44,032 42,685 Others 1,536 — — Total ₩ 225,416 ₩ 310,510 ₩ 294,660 |
Operating Expenses (Tables)
Operating Expenses (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
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Summary of Operating Expenses | Operating expenses for the years ended December 31, 2018, 2019 and 2020, are as follows: (In millions of Korean won) 2018 2019 2020 Salaries and wages ₩ 3,845,842 ₩ 3,974,233 ₩ 4,123,680 Depreciation 2,674,205 2,530,252 2,605,128 Depreciation of right-of-use — 442,629 404,175 Amortization of intangible assets 607,527 656,611 624,982 Commissions 1,080,168 1,115,477 965,461 Interconnection charges 579,613 534,025 500,081 International interconnection fee 226,627 240,254 172,529 Purchase of inventories 4,414,094 4,453,820 3,681,801 Changes of inventories (432,607 ) 282,957 257,041 Sales commission 1,942,841 2,315,731 2,337,127 Service cost 1,540,869 1,610,261 2,102,875 Utilities 323,411 332,816 360,797 Taxes and dues 285,131 277,742 283,197 Rent 460,377 193,357 136,355 Insurance premium 73,654 82,404 71,018 Installation fee 143,669 155,178 132,117 Advertising expenses 157,675 150,166 132,466 Research and development expenses 176,758 165,028 156,940 Card service cost 3,112,618 3,066,766 2,941,669 Others 1,122,718 1,292,512 1,428,875 Total ₩ 22,335,190 ₩ 23,872,219 ₩ 23,418,314 |
Summary of Details of Salaries and Wages | Details of salaries and wages for the years ended December 31, 2018, 2019 and 2020, are as follows: (In millions of Korean won) 2018 2019 2020 Short-term employee benefits ₩ 3,505,214 ₩ 3,663,337 ₩ 3,770,786 Post-employment benefits(Defined benefit plan) 232,045 240,310 239,102 Post-employment benefits(Defined contribution plan) 48,210 57,170 61,912 Share-based payment 8,439 6,398 28,604 Others 51,934 7,018 23,276 Total ₩ 3,845,842 ₩ 3,974,233 ₩ 4,123,680 |
Financial Income and Costs (Tab
Financial Income and Costs (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Details of Financial Income | Details of financial income for the years ended December 31, 2018, 2019 and 2020, are as follows: (In millions of Korean won) 2018 2019 2020 Interest income ₩ 244,796 ₩ 282,704 ₩ 270,571 Gain on foreign currency transactions 17,175 24,596 17,493 Gain on foreign currency translation 3,691 17,979 164,351 Gain on settlement of derivatives 27,950 9,016 9,397 Gain on valuation of derivatives 66,305 77,353 172 Others 14,326 12,747 36,630 Total ₩ 374,243 ₩ 424,395 ₩ 498,614 |
Summary of Details of Financial Costs | Details of financial costs for the years ended December 31, 2018, 2019 and 2020, are as follows: (In millions of Korean won) 2018 2019 2020 Interest expenses ₩ 296,874 ₩ 278,427 ₩ 263,579 Loss on foreign currency transactions 49,156 30,267 27,805 Loss on foreign currency translation 72,642 93,977 26,340 Loss on settlement of derivatives — 20 1,406 Loss on valuation of derivatives 2,045 15,867 163,763 Loss on disposal of trade receivables 13,818 11,298 8,152 Others 1,124 2,277 16,338 Total ₩ 435,659 ₩ 432,133 ₩ 507,383 |
Deferred Income Tax and incom_2
Deferred Income Tax and income Tax Expense (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Analysis of Deferred Tax Assets and Deferred Tax Liabilities | The analysis of deferred tax assets and deferred tax liabilities as at December 31, 2019 and 2020, is as follows: (In millions of Korean won) December 31, December 31, Deferred tax assets Deferred tax assets to be recovered within 12 months ₩ 419,889 ₩ 404,434 Deferred tax assets to be recovered after more than 12 months 1,613,836 1,631,759 Deferred tax assets before offsetting 2,033,725 2,036,193 Deferred tax liabilities Deferred tax liability to be recovered within 12 months (538,578 ) (637,317 ) Deferred tax liability to be recovered after more than 12 months (1,495,759 ) (1,394,509 ) Deferred tax liabilities before offsetting (2,034,337 ) (2,031,826 ) Deferred tax assets after offsetting ₩ 424,856 ₩ 433,698 Deferred tax liabilities after offsetting ₩ 425,468 ₩ 429,331 |
Summary of Gross Movements on the Deferred Income Tax Account | The gross movements on the deferred income tax account for the years ended December 31, 2019 and 2020, are calculated as follows: (In millions of Korean won) 2019 2020 Beginning ₩ 260,584 ₩ (612 ) Changes to the statement of operations (199,527 ) (72,124 ) Changes to other comprehensive loss (income) (61,669 ) 77,103 Ending ₩ (612 ) ₩ 4,367 |
Summary of Movement in Deferred Income Tax Assets and Liabilities | The movement in deferred income tax assets and liabilities during the year, without taking into consideration the offsetting of balances within the same tax jurisdiction, is as follows: (In millions of Korean won) 2019 Beginning Consolidated Other Ending Deferred tax liabilities Derivative instruments — (10,250 ) (648 ) (10,898 ) Investment in subsidiaries, associates, and joint ventures (93,604 ) (14,622 ) 35 (108,191 ) Depreciation (424 ) (11,182 ) — (11,606 ) Advanced depreciation provision (313,184 ) 63 — (313,121 ) Deposits for severance benefits (398,982 ) (99,126 ) 1,255 (496,853 ) Accrued income (1,558 ) 17 — (1,541 ) Reserve for technology and human resource development (204 ) — — (204 ) Contract cost (369,916 ) (40,947 ) — (410,863 ) Contract assets (11,505 ) (42,245 ) — (53,750 ) Financial assets at fair value through profit or loss (661 ) 338 — (323 ) Financial assets at fair value through other comprehensive income (41,798 ) (3,556 ) (58,483 ) (103,837 ) Others (284,255 ) (238,725 ) (170 ) (523,150 ) Total (1,516,091 ) (460,235 ) (58,011 ) (2,034,337 ) Deferred tax assets Derivative instruments 8,341 (850 ) (7,491 ) — Provision for impairment or trade receivables 99,887 (15,816 ) — 84,071 Inventory valuation 121 (98 ) — 23 Contribution for construction 16,800 (646 ) — 16,154 Unsettled expenses 127,897 32,539 — 160,436 Provisions 36,178 (3,354 ) — 32,824 Property and equipment 230,278 (1,623 ) — 228,655 Defined benefit liabilities 513,842 48,847 6,782 569,471 Withholding of facilities expenses 6,609 (426 ) — 6,183 Deduction of installment receivables 42 6 — 48 Assets retirement obligation 24,532 4,484 — 29,016 Gain or loss foreign currency translation 10,672 10,005 — 20,677 Deferred revenue 39,641 (3,841 ) — 35,800 Real-estate sales 21,728 (8,043 ) — 13,685 Others 537,209 174,177 (2,949 ) 708,437 Total 1,673,777 235,361 (3,658 ) 1,905,480 Temporary difference, net 157,686 (224,874 ) (61,669 ) (128,857 ) Tax credit carryforwards 102,898 25,347 — 128,245 Total net balance 260,584 (199,527 ) (61,669 ) (612 ) (In millions of Korean won) 2020 Beginning Consolidated Other Ending Deferred tax liabilities Derivative instruments (10,898 ) 10,055 — (843 ) Investment in subsidiaries, associates, and joint ventures (108,191 ) (64,553 ) (8,820 ) (181,564 ) Depreciation (11,606 ) 7,431 — (4,175 ) Advanced depreciation provision (313,121 ) 1,203 — (311,918 ) Deposits for severance benefits (496,853 ) (26,419 ) 2,015 (521,257 ) Accrued income (1,541 ) (212 ) — (1,753 ) Reserve for technology and human resource development (204 ) — — (204 ) Contract cost (410,863 ) 67,898 — (342,965 ) Contract assets (53,750 ) (112,794 ) — (166,544 ) Financial assets at fair value through profit or loss (323 ) (304 ) — (627 ) Financial assets at fair value through other comprehensive income (103,837 ) (4,420 ) 77,634 (30,623 ) Others (523,150 ) 53,797 — (469,353 ) Total (2,034,337 ) (68,318 ) 70,829 (2,031,826 ) Deferred tax assets Derivative instruments — 40,342 (9,860 ) 30,482 Provision for impairment or trade receivables 84,071 4,994 — 89,065 Inventory valuation 23 (259 ) — (236 ) Contribution for construction 16,154 246 — 16,400 Unsettled expenses 160,436 (24,358 ) — 136,078 Provisions 32,824 1,198 — 34,022 Property and equipment 228,655 (1,695 ) — 226,960 Defined benefit liabilities 569,471 13,707 15,186 598,364 Withholding of facilities expenses 6,183 (436 ) — 5,747 Deduction of installment receivables 48 (20 ) — 28 Assets retirement obligation 29,016 (883 ) — 28,133 Gain or loss foreign currency translation 20,677 (20,539 ) — 138 Deferred revenue 35,800 7,230 — 43,030 Contract assets — 97,464 — 97,464 Real-estate sales 13,685 (13,685 ) — — Others 708,437 (123,798 ) 948 585,587 Total 1,905,480 (20,492 ) 6,274 1,891,262 Temporary difference, net (128,857 ) (88,810 ) 77,103 (140,564 ) Tax credit carryforwards 128,245 16,686 — 144,931 Total net balance (612 ) (72,124 ) 77,103 4,367 |
Summary of Tax Impacts Recognized Directly To Equity | The tax impacts recognized directly to equity as at December 31, 2018, 2019, and 2020, are as follows: 2018 2019 2020 (In millions of Korean won) Before recognition Tax effect After Before recognition Tax effect After Before recognition Tax effect After Gain on valuation of financial assets at fair value through other comprehensive income 59,384 (15,573 ) 43,811 225,635 (58,483 ) 167,152 54,969 (12,972 ) 41,997 Gain (loss) on valuation of hedge instruments (36,756 ) 9,745 (27,011 ) 31,003 (8,139 ) 22,864 37,247 (9,860 ) 27,387 Remeasurements of net defined benefit liabilities (116,324 ) 42,813 (73,511 ) (33,814 ) 8,037 (25,777 ) (77,382 ) 17,201 (60,181 ) Share of gain(loss) of associates and joint ventures, and others (1,036 ) 179 (857 ) 4,493 (1,327 ) 3,166 25,538 (8,820 ) 16,718 Exchange differences on translation for foreign operations 3,989 (1,049 ) 2,940 6,692 (1,759 ) 4,933 (3,614 ) 948 (2,666 ) Total ₩ (90,743 ) ₩ 36,115 ₩ (54,628 ) ₩ 234,009 ₩ (61,671 ) ₩ 172,338 ₩ 36,758 ₩ (13,503 ) ₩ 23,255 |
Summary of Details of Income Tax Expense | Details of income tax expense for the years ended December 31, 2018, 2019 and 2020, are calculated as follows: (In millions of Korean won) 2018 2019 2020 Current income tax expense ₩ 329,581 ₩ 120,533 ₩ 213,225 Impact of change in deferred taxes (15,016 ) 199,527 72,124 Income tax expense ₩ 314,565 ₩ 320,060 ₩ 285,349 |
Summary of Tax on the Group's Profit Before Tax | The tax on the Group’s profit before tax differs from the theoretical amount that would arise using the weighted average tax rate applicable to profits of the entities as follows: (In millions of Korean won) 2018 2019 2020 Profit before income tax expense ₩ 1,033,977 ₩ 1,015,928 ₩ 1,031,605 Statutory income tax expense ₩ 273,982 ₩ 269,018 ₩ 273,329 Tax effect Income not taxable for taxation purposes (85,322 ) (1,265 ) (24,657 ) Non-deductible expenses 18,126 19,543 31,741 Tax credit (20,319 ) (39,190 ) (47,056 ) Additional payment of income taxes 11,439 3,832 429 Tax effect and adjustment on consolidation Goodwill impairment 137 159 — Eliminated dividend income form subsidiaries 31,966 21,917 20,682 Changes of out-side 618 13,539 38,552 Investment in-kind 82,820 — — Intangible Asset impairment and amortization — 14,052 3,790 Reversal expenses of contract cost assets — 11,213 (6,643 ) Others 1,118 7,242 (4,818 ) Income tax expense ₩ 314,565 ₩ 320,060 ₩ 285,349 |
Summary of deferred tax assets and liabilities that are not recognized | Details of deferred tax assets and liabilities that are not recognized as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) 2019 2020 Deductible temporary differences Investment in subsidiaries, associates, and joint ventures ₩ 610,351 ₩ 583,890 Unused tax loss 31,257 28,115 Unused Tax credit — 2,654 Others 32,494 64,760 Total ₩ 674,102 ₩ 679,419 Taxable temporary differences Investment in subsidiaries, associates, and joint ventures ₩ 141,664 ₩ 132,848 Others 10,372 9,568 Total ₩ 152,036 ₩ 142,416 |
Summary of expected period of expiry for unused tax losses not recognized in deferred tax assets | The expected period of expiry for unused tax losses not recognized in deferred tax assets as at December 31, 2019 and 2020, is as follows: (In millions of Korean won) 2019 2020 2021 ₩ 18,582 ₩ 2,140 2022 2,140 80,649 2023 80,649 5,848 2024 5,848 4,867 2025 4,867 2,847 2026 9,390 9,709 2027 7,888 8,389 2028 10,064 8,426 2029 2,030 2,579 2030 617 2,339 Total ₩ 142,075 ₩ 127,793 |
Earnings per Share (Tables)
Earnings per Share (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Basic and Diluted Earnings per Share From Operations | Basic earnings per share from operations for the years ended December 31, 2018, 2019 and 2020, is calculated as follows: 2018 2019 2020 Profit attributable to ordinary shares (In millions of Korean won) ₩ 645,571 ₩ 645,703 ₩ 700,889 Weighted average number of ordinary shares outstanding (In number of shares) 245,049,466 245,171,283 245,207,307 Basic earnings per share (In Korean won) 2,634 2,634 2,858 Diluted earnings per share from operations is calculated by adjusting the weighted average number of ordinary shares outstanding to assume conversion of all dilutive potential ordinary shares. The Controlling Company has dilutive potential ordinary shares from convertible preferred stocks, stock options and other share-based payments. Diluted earnings per share from operations for the years ended December 31, 2018, 2019 and 2020 is calculated as follows: 2018 2019 2020 Profit attributable to ordinary shares (In millions of Korean won) ₩ 645,571 ₩ 645,703 ₩ 700,889 Adjustment to net income attributable to ordinary shares (In millions of Korean won) — (157 ) — Diluted profit attributable to ordinary shares (In millions of Korean won) 645,571 645,546 700,889 Number of dilutive potential ordinary shares outstanding (In number of shares) 1,163 70,267 69,598 Weighted average number of ordinary shares outstanding (In number of shares) 245,050,629 245,241,550 245,276,905 Diluted earnings per share (In Korean won) 2,634 2,632 2,858 |
Cash Generated from Operations
Cash Generated from Operations (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Cash Flows from Operating Activities | Cash flows from operating activities for the years ended December 31, 2018, 2019 and 2020, are as follows: (In millions of Korean won) 2018 2019 2020 1. Profit for the year ₩ 719,412 ₩ 695,868 ₩ 746,256 2. Adjustments to reconcile net income Income tax expense 314,565 320,060 285,349 Interest income (265,817 ) (303,722 ) (291,425 ) Interest expense 296,894 278,975 265,035 Dividends income (2,910 ) (3,408 ) (4,442 ) Depreciation 2,735,413 2,567,754 2,635,307 Amortization of intangible assets 629,526 660,705 628,154 Depreciation of right-of-use — 433,199 404,174 Provision for severance benefits 245,926 256,525 255,615 Impairment losses on trade receivables 113,064 60,193 139,957 Share of net profit or loss of associates and joint ventures 5,912 3,252 (18,041 ) Loss(gain) on disposal of associates and joint ventures (3,737 ) 30 111 Loss(gain) on disposal of right-of-use — 1,556 2,047 Impairment losses on assets held for sale — 7,586 — Loss on disposal of property and equipment and investment in properties 68,688 49,284 55,590 Loss(gain) on disposal of intangible assets (4,256 ) (1,248 ) 246 Loss on impairment of intangible assets 12,997 61,899 211,636 Loss(gain) on foreign currency translation 68,952 75,998 (138,011 ) Loss(gain) on valuation and settlement of derivatives, net (92,210 ) (70,482 ) 155,600 Loss(gain) on disposal of financial assets at fair value through profit or loss (1,712 ) (5,115 ) 329 Gain on valuation of financial assets at fair value through profit or loss (10,768 ) (4,335 ) (59,044 ) Loss(gain) on disposal of financial assets at amortized cost (44 ) 43 (138 ) Others (55,969 ) 143,500 127,949 3. Changes in operating assets and liabilities Decrease(increase) in trade receivables (81,217 ) (433,292 ) 66,462 Decrease(Increase) in other receivables 356,643 (79,130 ) 685,209 Decrease(increase) in other current assets (123,258 ) 984 9,089 Decrease(increase) in other non-current 19,556 (178,180 ) (86,039 ) Decrease(increase) in inventories (480,543 ) 240,488 288,507 Increase(decrease) in trade payables (167,841 ) 44,354 (135,760 ) Decrease in other payables (448,301 ) (102,375 ) (1,232,646 ) Increase in other current liabilities 291,548 43,384 127,076 Increase(decrease) in other non-current 144,072 (199,547 ) (56,319 ) Decrease(Increase) in provisions 85,946 (12,164 ) 2,264 Decrease(Increase) in deferred revenue 48,201 641 (1,948 ) Increase in plan assets (53,301 ) (375,499 ) (136,336 ) Payment of severance benefits (153,209 ) (119,716 ) (186,520 ) 4. Cash generated from operations (1+2+3) ₩ 4,212,222 ₩ 4,058,065 ₩ 4,745,293 |
Summary of Significant Transactions not Affecting Cash Flows | Significant transactions not affecting cash flows for the years ended December 31, 2018, 2019 and 2020, are as follows: (In millions of Korean won) 2018 2019 2020 Reclassification of the current portion of borrowings ₩ 1,149,599 ₩ 1,030,056 ₩ 1,229,359 Reclassification of construction-in-progress 1,988,014 2,698,146 3,011,519 Reclassification of accounts payable from property and equipment 122,185 685,859 22,052 Reclassification of accounts payable from intangible assets 584,595 (356,911 ) (345,675 ) Reclassification of payable from defined benefit liability (31,838 ) (19,053 ) 72,346 Reclassification of payable from plan assets (9,497 ) (14,298 ) 66,046 |
Changes in Liabilities Arisin_2
Changes in Liabilities Arising from Financing Activities (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Changes in Liabilities Arising from Financial Activities | Changes in liabilities arising from financing activities, liabilities related to cashflow to be classified as future financing activities, for the years ended December 31, 2019 and 2020, are as follows: (In millions of 2019 Beginning Cash Non-cash Ending Changes in 1 Newly Exchange Fair Value Others Borrowing ₩ 6,648,294 ₩ 574,175 ₩ — ₩ — ₩ 64,398 ₩ — ₩ 12,000 ₩ 7,298,867 Lease liabilities 163,858 (485,444 ) 771,410 774,906 — — (13,379 ) 1,211,351 Derivative liabilities 65,067 (9,734 ) — — (4,234 ) (20,058 ) (10,945 ) 20,096 Derivative assets (29,843 ) 33,635 — — (53,729 ) (11,398 ) 2,759 (58,576 ) Total ₩ 6,847,376 ₩ 112,632 ₩ 771,410 ₩ 774,906 ₩ 6,435 ₩ (31,456 ) ₩ (9,565 ) ₩ 8,471,738 1 For information on the financial impacts due to change in accounting policy, see Note 41. (In millions of 2020 Beginning Cash Non-cash Ending Newly Exchange Fair Value Change in Others Borrowing ₩ 7,298,867 ₩ 167,867 ₩ 17,523 ₩ (157,985 ) ₩ — ₩ — ₩ (9,974 ) ₩ 7,316,298 Lease liabilities 1,211,351 (447,784 ) 473,477 (3 ) 40 3,564 (97,005 ) 1,143,640 — (13,674 ) 13,674 — — — — — Derivative liabilities 20,096 (943 ) 2,798 142,511 (23,669 ) — (10,220 ) 130,573 Derivative assets (58,576 ) 34,933 — 2,870 (3,456 ) — 16,623 (7,606 ) Total ₩ 8,471,738 ₩ (259,601 ) ₩ 507,472 ₩ (12,607 ) ₩ (27,085 ) ₩ 3,564 ₩ (100,576 ) ₩ 8,582,905 |
Segment Information (Tables)
Segment Information (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Segment Information | Details of each segment for the years ended December 31, 2018, 2019 and 2020, are as follows: 2018 (In millions of Korean won) Operating revenues Operating Income Depreciation and Amortization 1 ICT ₩ 17,724,320 ₩ 933,191 ₩ 2,917,163 Finance 3,771,681 148,440 22,580 Satellite TV 690,821 66,735 98,310 Others 5,159,459 53,316 236,715 27,346,281 1,201,682 3,274,768 Elimination (3,910,231 ) (100,822 ) 6,964 Consolidated amount ₩ 23,436,050 ₩ 1,100,860 ₩ 3,281,732 1 Sum of the amortization of tangible assets, intangible assets, investment properties, and right-of-use 2019 (In millions of Korean won) Operating revenues Operating Income Depreciation and Amortization 1 ICT ₩ 18,527,631 ₩ 634,046 ₩ 3,229,159 Finance 3,795,185 158,235 27,852 Satellite TV 694,637 69,357 94,992 Others 5,845,973 218,402 357,294 28,863,426 1,080,040 3,709,297 Elimination (3,964,237 ) (53,070 ) (79,805 ) Consolidated amount ₩ 24,899,189 ₩ 1,026,970 ₩ 3,629,492 1 Sum of the amortization of tangible assets, intangible assets, investment properties, and right-of-use 2020 (In millions of Korean won) Operating revenues Operating Income Depreciation and Amortization 1,2 ICT ₩ 18,275,765 ₩ 809,741 ₩ 3,233,878 Finance 3,686,430 85,008 53,098 Satellite TV 706,631 71,345 84,931 Others 5,944,093 209,078 346,215 28,612,919 1,175,172 3,718,122 Elimination (4,172,272 ) (152,839 ) (83,838 ) Consolidated amount ₩ 24,440,647 ₩ 1,022,333 ₩ 3,634,284 1 Sum of the amortization of tangible assets, intangible assets, investment properties, and right-of-use 2 Property and equipment and intangible assets associated with ICT reporting segment are ₩ |
Summary of Operating Revenues and Non Current Assets by Geographical Regions | Operating revenues for the years ended December 31, 2018, 2019 and 2020 and non-current (In millions of Korean won) Operating revenues Non-current 1 Location 2018 2019 2020 2019.12.31 2020.12.31 Domestic ₩ 23,376,218 ₩ 24,832,068 ₩ 24,368,729 ₩ 19,198,416 ₩ 18,934,766 Overseas 59,832 67,121 71,918 76,679 18,243 Total ₩ 23,436,050 ₩ 24,899,189 ₩ 24,440,647 ₩ 19,275,095 ₩ 18,953,009 1 Non-current right-of-use |
Related Party Transactions (Tab
Related Party Transactions (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Related Parties Outstanding Balances of Receivables and Payables | Outstanding balances of receivables and payables in relations to transactions with related parties as at December 31, 2019 and 2020, are as follows: December 31, 2019 Receivables Payables (In millions of Korean won) Trade Other Other Lease Associates and joint ventures K- CR-REITs ₩ 608 ₩ 23,100 ₩ — ₩ 57,907 K Bank, Inc. 583 13,664 557 — Others 434 1,177 711 — Total ₩ 1,625 ₩ 37,941 ₩ 1,268 ₩ 57,907 December 31, 2020 Receivables Payables (In millions of Korean won) Trade Other Other Lease Associates and joint ventures K- CR-REITs ₩ 457 ₩ 16,200 ₩ — ₩ 20,857 K Bank, Inc. 775 32,964 891 — Others 72 1,147 858 — Total ₩ 1,304 ₩ 50,311 ₩ 1,749 ₩ 20,857 |
Summary of Significant Transactions With Related Parties | Significant transactions with related parties for the years ended December 31, 2018, 2019 and 2020, are as follows: 2018 (In millions of Korean won) Sales Purchases 1 Dividend income Associates and joint ventures K- CR-REITs ₩ ₩ ₩ MOS GS Co., Ltd. 2 493 12,023 8 MOS Daegu Co., Ltd. 2 229 8,775 8 MOS Chungcheong Co., Ltd. 2 540 9,159 8 MOS Gangnam Co., Ltd. 2 333 11,549 10 MOS GB Co., Ltd. 2 1,378 16,519 12 MOS BS Co., Ltd. 2 324 11,193 10 MOS Honam Co., Ltd. 2 331 10,499 10 K Bank, Inc. 15,705 7,004 — NgeneBio 3 3 — — Others 2,888 9,547 2,148 Total ₩ ₩ ₩ 1 The amounts include acquisition of primarily property and equipment. 2 It is the amount before excluded from consolidation during the year. 3 It is the amount before excluded from associates during the year 2019 (In millions of Korean won) Sales Purchases 1 Associates and joint ventures K- CR-REITs ₩ 1,302 ₩ — K Bank, Inc. 17,815 8,524 Others 1,498 10,531 Others K-REALTY CR-REIT 1 2,801 — Total ₩ 23,416 ₩ 19,055 1 The amounts include acquisition of property and equipment and others. December 31, 2019 (In millions of Korean won) Acquisition Acquisition of right-of-use Interest Dividend Associates and joint ventures K- CR-REITs ₩ — ₩ 776 ₩ 2,225 ₩ 10,928 Korea Information & Technology Investment Fund (KIF Investment Fund) — — — 4,280 Others — — — 146 Total ₩ — ₩ 776 ₩ 2,225 ₩ 15,354 2020 (In millions of Korean won) Sales Purchases 1 Associates and joint ventures K- CR-REITs ₩ 2,298 ₩ — Korea Information & Technology Investment Fund (KIF Investment Fund) — — K Bank, Inc. 15,658 8,227 Others 809 10,272 Total ₩ 18,765 ₩ 18,499 1 December 31, 2020 (In millions of Korean won) Interest Interest Dividend Associates and joint ventures K- CR-REITs ₩ ₩ ₩ Korea Information & Technology Investment Fund (KIF Investment Fund) — — 9,241 K Bank, Inc. 14 — — Others — — 43 Total ₩ 14 ₩ 917 ₩ 17,345 |
Summary of Key Management Compensation | Key management compensation for the years ended December 31, 2018, 2019 and 2020, consists of: (In millions of Korean won) 2018 2019 2020 Salaries and other short-term benefits ₩ 2,762 ₩ 2,955 ₩ 2,086 Post-employment benefits 751 321 390 Stock-based compensation 878 891 5,613 Total ₩ 4,391 ₩ 4,167 ₩ 8,089 |
Summary of Fund Transactions With Related Parties | Fund transactions with related parties for the years ended December 31, 2018, 2019 and 2020, are as follows: 2018 (In millions of Korean won) Equity Associates and joint ventures PHI Healthcare Inc. (HooH Healthcare Inc.) ₩ 1,000 KT-CKP (1,229 ) PT. Mitra Transaksi Indonesia 1 1,567 Gyeonggi-KT Yoojin Superman Fund 1,000 KT-DSC start-up (1,800 ) KT-IBKC (1,050 ) Korea Electronic Vehicle Charging Service 168 K Bank, Inc. 26,725 GE Premier 1st Corporate Restructuring Real Estate Investment Trust Company (3,423 ) JB Emerging Market Specialty Investment Private Equity Trust No.1 3,960 K-REALTY — Korea Information & Technology Investment Fund — MOS GS Co., Ltd. 2 (147 ) MOS Daegu Co., Ltd. 2 (147 ) MOS Chungcheong Co., Ltd. 2 (153 ) MOS Gangnam Co., Ltd. 2 (180 ) MOS GB Co., Ltd. 2 (203 ) MOS BS Co., Ltd. 2 (183 ) MOS Honam Co., Ltd. 2 (206 ) Daiwon Broadcasting Co., Ltd. — Boston Global Film & Contents Fund L.P. (986 ) Gyeonggi-KT Green Growth Fund — Total ₩ 24,713 1 It is the amount before reclassification to assets held for sale . 2 It is the amount before included in consolidation during the year. December 31, 2019 Borrowing transaction 1 Equity contributions (In millions of Korean won) Borrowing 2 Repayment KT-IBKC ₩ — ₩ — ₩ 3,750 KT Philippines co. Ltd. — — 99 Virtua Realm Sendirian Berhad — — 550 K-REALTY — 30,385 — K Bank, Inc — — 21,782 KIF Investment Fund — — — Daiwon Broadcasting Co.,Ltd. — — — JB Emerging Market Specialty Investment Private Equity Trust No.1 — — — Gyeonggi-KT Yoojin Superman Fund — — 1,000 KT-CKP — — (174 ) KT-DSC start-up — — (1,800 ) KT-Smart — — 2,800 KT-SB — — (2,404 ) Total ₩ — ₩ 30,385 ₩ 25,603 1 Borrowing transactions include lease transactions. 2 Conversion effect from the adoption of IFRS 16 Lease December 31, 2020 Borrowing transaction 1 Equity contributions (In millions of Korean won) Borrowing Repayment K- CR-REITs ₩ — ₩ 20,304 ₩ — Studio Discovery Co. Ltd. — — 3,000 KT Young Entrepreneurs DNA Investment Fund — — 3,600 KT-Smart — — 2,800 KT-CKP — — (109 ) K Bank Inc. — — 195,011 Gyeonggi-KT Yoojin Superman Fund — — 1,000 Hyundai Robotics Co. Ltd. — — 50,000 Total ₩ — ₩ 20,304 ₩ 255,302 1 Borrowing transactions include lease transactions. As at December 31, 2020, there is no collateral or payment guarantee provided to or from related parties. |
Financial Risk Management (Tabl
Financial Risk Management (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
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 at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 December 31, 2020 Cash and cash equivalents (except for cash on hand) ₩ 2,226,608 ₩ 2,625,581 Trade and other receivables Financial assets at amortized costs 5,784,228 5,034,621 Financial assets at fair value through other comprehensive income 1,256,266 1,118,619 Contract assets 557,041 586,438 Other financial assets Derivatives financial assets for hedging 58,576 7,684 Financial assets at fair value through profit or loss 541,657 680,453 Financial assets at fair value through other comprehensive income 7,086 6,570 Financial assets at amortized costs 441,804 671,068 Total ₩ 10,873,266 ₩ 10,731,034 |
Summary of Contractual Undiscounted Cash Flows | The table below analyzes the Group’s liabilities (including interest expenses) into relevant maturity groups based on the remaining period at the date of the end of each reporting period to the contractual maturity date. These amounts are contractual undiscounted cash flows and can differ from the amount in the consolidated financial statements. December 31, 2019 (In millions of Korean won) Less than 1 year 1-5 More than Total Trade and other payables ₩ 8,149,445 ₩ 805,241 ₩ 370,044 ₩ 9,324,730 Borrowings(including debentures) 1,304,936 4,417,639 2,493,637 8,216,212 Lease liabilities 397,609 688,518 221,255 1,307,382 Other non-derivative 1,749 175,764 18,962 196,475 Financial guarantee contracts 1 19,422 — — 19,422 Total ₩ 9,873,161 ₩ 6,087,162 ₩ 3,103,898 ₩ 19,064,221 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, 2020 (In millions of Korean won) Less than 1 year 1-5 More than Total Trade and other payables ₩ 6,587,796 ₩ 730,758 ₩ 258,255 ₩ 7,576,809 Borrowings(including debentures) 1,573,944 4,373,534 2,258,360 8,205,838 Lease liabilities 336,024 658,501 190,907 1,185,432 Other non-derivative 574 131,242 — 131,816 Financial guarantee contracts 1 22,422 — — 22,422 Total ₩ 8,520,760 ₩ 5,894,035 ₩ 2,707,522 ₩ 17,122,317 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 | Cash outflow and inflow of derivatives settled gross or net are undiscounted contractual cash flow and can differ from the amount in the consolidated financial statements. December 31, 2018 (In millions of Korean won) Less than 1 year 1-5 More than Total Outflow ₩ 455,343 ₩ 1,466,915 ₩ 517,301 ₩ 2,439,559 Inflow 484,505 1,492,718 519,133 2,496,356 December 31, 2019 (In millions of Korean won) Less than 1 year 1-5 More than Total Outflow ₩ 650,497 ₩ 1,602,513 ₩ 507,947 ₩ 2,760,957 Inflow 684,720 1,648,746 524,483 2,857,949 December 31, 2020 (In millions of Korean won) Less than 1 year 1-5 More than Total Outflow ₩ 248,300 ₩ 2,179,046 ₩ 498,619 ₩ 2,925,965 Inflow 249,301 2,074,747 480,570 2,804,618 |
Summary of Debt-to-equity Ratios | The debt-to-equity (In millions of Korean won) December 31, 2019 December 31, 2020 Total liabilities ₩ 19,491,530 ₩ 18,111,112 Total equity 15,140,684 15,551,433 Debt-to-equity 129 % 116 % |
Summary of Gearing Ratios | The gearing ratios as at December 31, 2019 and 2020, are as follows: (In millions of Korean won, %) December 31, 2019 December 31, 2020 Total borrowings ₩ 7,298,867 ₩ 7,316,298 Less: cash and cash equivalents (2,305,894 ) (2,634,624 ) Net debt 4,992,973 4,681,674 Total equity 15,140,684 15,551,433 Total capital 20,133,657 20,233,107 Gearing ratio 25 % 23 % |
Summary of Group's Recognized Financial Assets Subject to Enforceable Master Netting Arrangements or Similar Agreements | 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, 2019 Gross Gross Net amounts position Amounts not offset Net Financial Cash Trade receivables ₩ 66,487 ₩ (1 ) ₩ 66,486 ₩ (63,604 ) ₩ — ₩ 2,882 Other financial assets 18,571 (13 ) 18,558 (18,526 ) — 32 ₩ 85,058 ₩ (14 ) ₩ 85,044 ₩ (82,130 ) ₩ — ₩ 2,914 (In millions of Korean won) December 31, 2020 Gross Gross Net amounts position Amounts not offset Net Financial Cash Trade receivables ₩ 71,497 ₩ (1 ) ₩ 71,496 ₩ (67,421 ) ₩ — ₩ 4,075 |
Summary of Group's Recognized Financial Liabilities Subject to Enforceable Master Netting Arrangements or Similar Agreements | 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, 2019 Gross Gross offset Net amounts position Amounts not offset Net Financial Cash Trade payables ₩ 65,669 ₩ (13 ) ₩ 65,656 ₩ (63,628 ) ₩ — ₩ 2,028 Other financial liabilities 18,509 (1 ) 18,508 (18,502 ) — 6 ₩ 84,178 ₩ (14 ) ₩ 84,164 ₩ (82,130 ) ₩ — ₩ 2,034 (In millions of Korean won) December 31, 2020 Gross Gross offset Net amounts position Amounts not offset Net Financial Cash Trade payables ₩ 69,361 ₩ — ₩ 69,361 ₩ (67,421 ) ₩ — ₩ 1,940 Other financial liabilities 1 (1 ) — — — — ₩ 69,362 ₩ (1 ) ₩ 69,361 ₩ (67,421 ) ₩ — ₩ 1,940 |
Currency risk [Member] | |
Statement [LineItems] | |
Summary of Exposures to Risks, Effects on Profit before Income Tax and Shareholders' Equity | As at December 31, 2018, 2019 and 2020, if the foreign exchange rate had strengthened/weakened by 10% with all other variables held constant, the effects on profit before inc o (In millions of Ko r Fluctuation of Income before tax 1 Shareholders’ equity 2018.12.31 10 % ₩ 7,212 ₩ 10,196 -10 % (12,413 ) (9,625 ) 2019.12.31 10 % ₩ 45,149 ₩ 52,092 -10 % (45,149 ) (52,092 ) 2020.12.31 10 % ₩ 25,220 ₩ 36,961 -10 % (25,220 ) (36,961 ) |
Summary of Details of Financial Assets and Liabilities in Foreign Currencies | Details of financial assets and liabilit i (In thousands of foreign currencies) 2018 2019 2020 Financial Financial Financial Financial Financial Financial US D 528,539 1,893,849 645,941 1,830,764 400,046 1,937,935 SDR 1 267 730 255 729 255 728 JPY 66,078 50,000,000 24,930 80,000,000 209,376 46,000,009 GBP — 256 — 56 — — EUR 2 6 1 6 316 162 DZD 2 618 — — — — — CNY 1,954 171 457 161 458 491 UZS 3 121,053 — — — — — RWF 4 857 — 706 — 646 — THB 5 — — — — 535 — MMK 6 84 — 84 — — — TZS 7 — 2,876 6,919 — 1,019 — BWP 8 897 — 911 — 212 — HKD — — — 268 — 198 BDT 9 39,494 — 18,897 — — — PLN 10 26 — — — 26 — VND 11 467,272 — 271,563 — 242,370 — XAF 12 666 — 97,411 — 16,229 — SGD — — — — 6 284,000 1 Special Drawing Rights. 2 Algeria Dinar. 3 Uzbekistan Sum. 4 Rwanda Franc. 5 Thailand Bhat. 6 Myanmar Kyat. 7 Tanzanian Shilling. 8 Botswana Pula. 9 Bangladesh Taka. 10 Polish Zloty. 11 Vietnam Dong. 12 Central African Franc. |
Equity price risk [Member] | |
Statement [LineItems] | |
Summary of Exposures to Risks, Effects on Profit before Income Tax and Shareholders' Equity | As at December 31, 2018, 2019 and 2020, 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 shareholders’ equity would have been as follows: (In millions of Korean won) Fluctuation of price Income before tax Equity 2018.12.31 10% ₩ 12 ₩ 898 -10% (12 ) (898 ) 2019.12.31 10% ₩ 24 ₩ 613 -10% (24 ) (613 ) 2020.12.31 10% ₩ 2,811 ₩ 3,472 -10% (2,811 ) (3,472 ) |
Interest rate risk [Member] | |
Statement [LineItems] | |
Summary of Exposures to Risks, Effects on Profit before Income Tax and Shareholders' Equity | As at December 31, 2018, 2019 and 2020, 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 Income before tax Shareholders’ equity 2018.12.31 + 100 bp ₩ 1,059 ₩ 9,689 - 100 bp (1,958 ) (10,237 ) 2019.12.31 + 100 bp ₩ 425 ₩ 14,764 - 100 bp (482 ) (19,280 ) 2020.12.31 + 100 bp ₩ 973 ₩ 18,584 - 100 bp (973 ) (19,377 ) |
Fair Value (Tables)
Fair Value (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Carrying Amount and Fair Value of Financial Instruments by Category | Carrying amount and fair value of financial instruments by category as at December 31, 2019 and 2020, are as follows: December 31, 2019 December 31, 2020 (In millions of Korean won) Carrying Fair value Carrying Fair value Financial assets Cash and cash equivalents ₩ 2,305,894 1 ₩ 2,634,624 1 Trade and other receivables Financial assets measured at amortized cost 2 5,748,459 1 4,976,423 1 Financial assets at fair value through other comprehensive income 1,256,266 1,256,266 1,118,619 1,118,619 Other financial assets Financial assets measured at amortized cost 441,804 1 671,068 1 Financial assets at fair value through profit or loss 632,324 632,324 809,919 809,919 Financial assets at fair value through other comprehensive income 557,342 557,342 258,516 258,516 Derivative financial assets for hedging 58,576 58,576 7,684 7,684 Total ₩ 11,000,665 ₩ 10,476,853 Financial liabilities Trade and other payables ₩ 8,679,698 1 ₩ 7,017,639 1 Borrowings 7,298,867 1 7,316,298 1 Other financial liabilities Financial liabilities at amortized cost 129,945 1 132,558 1 Financial liabilities at fair value through profit or loss 38 38 2,682 2,682 Derivative financial liabilities for hedging 20,096 20,096 127,929 127,929 Total ₩ 16,128,644 ₩ 14,597,106 1 The Group did not conduct fair value estimation since the book amount is a reasonable approximation of the fair value 2 With the application of IFRS 7, lease receivables are excluded from fair value disclosure. |
Summary of Fair Value Hierarchy Classifications of Financial Assets and Financial Liabilities That are Measured at Fair Value | Fair value hierarchy classifications of the financial assets and financial liabilities that are measured at fair value or its fair value is disclosed as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 Level 1 Level 2 Level 3 Total Assets Trade and other receivables Financial assets at fair value through other comprehensive income ₩ — ₩ 1,256,266 ₩ — ₩ 1,256,266 Other financial assets Financial assets at fair value through profit or loss 232 136,951 495,141 632,324 Financial assets at fair value through other comprehensive income 6,738 508,550 42,054 557,342 Derivative financial assets for hedging — 40,788 17,788 58,576 Disclosed fair value Investment properties — — 2,304,583 2,304,583 Total ₩ 6,970 ₩ 1,942,555 ₩ 2,859,566 ₩ 4,809,091 Liabilities Other financial liabilities Financial liabilities at fair value through profit or loss ₩ — ₩ 38 ₩ — ₩ 38 Derivative financial liabilities for hedging — 20,096 — 20,096 Total ₩ — ₩ 20,134 ₩ — ₩ 20,134 (In millions of Korean won) December 31, 2020 Level 1 Level 2 Level 3 Total Assets Trade and other receivables Financial assets at fair value through other comprehensive income ₩ — ₩ 1,118,619 ₩ — ₩ 1,118,619 Other financial assets Financial assets at fair value through profit or loss 46,449 330,961 432,509 809,919 Financial assets at fair value through other comprehensive income 5,606 202,121 50,789 258,516 Derivative financial assets for hedging — 7,684 — 7,684 Disclosed fair value Investment properties — — 2,645,482 2,645,482 Total ₩ 52,055 ₩ 1,659,385 ₩ 3,128,780 ₩ 4,840,220 Liabilities Other financial liabilities Financial liabilities at fair value through profit or loss ₩ — ₩ 45 ₩ 2,637 ₩ 2,682 Derivative financial liabilities for hedging — 123,735 4,194 127,929 Total ₩ — ₩ 123,780 ₩ 6,831 ₩ 130,611 |
Summary of Changes in Level 3 of Fair Value Hierarchy for Recurring Fair Value Measurements | Details of changes in Level 3 of the fair value hierarchy for the recurring fair value measurements as at December 31, 2019 and 2020, are as follows: 2019 Financial assets Financial liabilities (In millions of Korean won) Financial assets Financial assets Derivative Financial Beginning balance ₩ 163,600 ₩ 311,536 ₩ (10,183 ) ₩ 7,758 Purchases 584,671 6,081 — — Reclassification 225,873 (444,782 ) — — Disposal (485,419 ) (941 ) — (9,734 ) Amount recognized in profit or loss 1,2 6,416 — 14,462 1,976 Amount recognized in other comprehensive income 1 — 170,160 13,509 — Ending balance ₩ 495,141 ₩ 42,054 ₩ 17,788 ₩ — 1 Amount recognized in profit or loss and other comprehensive income with respect to derivative financial liabilities for hedging comprises loss on valuation of derivative instruments. 2 Amount recognized in profit or loss with respect to financial liabilities at fair value through profit or loss comprises loss on valuation of derivative instruments. 2020 Financial assets Financial liabilities (In millions of Korean won) Financial assets Financial assets Financial Derivative Beginning balance ₩ 495,141 ₩ 42,054 ₩ — ₩ (17,788 ) Purchases 374,259 13,142 2,798 — Reclassification 208 — — — Disposal (451,663 ) (571 ) — — Amount recognized in profit or loss 1,2 14,564 (428 ) (161 ) 29,345 Amount recognized in other comprehensive income 1 — (3,408 ) — (7,363 ) Ending balance ₩ 432,509 ₩ 50,789 ₩ 2,637 ₩ 4,194 1 Amount recognized in profit or loss and other comprehensive income with respect to derivative financial liabilities for hedging comprises loss on valuation of derivative instruments. 2 Amount recognized in profit or loss with respect to financial liabilities at fair value through profit or loss comprises loss on valuation of derivative instruments. |
Summary of Valuation Techniques and Inputs | Valuation techniques and inputs used in the recurring, non-recurring December 31, 2019 (In millions of Korean won) Fair value Level Valuation techniques Assets Trade and other receivables Financial assets at fair value through other comprehensive income ₩ 1,256,266 2 DCF Model Other financial assets Financial assets at fair value through profit or loss 632,092 2,3 DCF Model, Adjusted net asset model Financial assets at fair value through other comprehensive income 550,604 2,3 DCF Model, Comparable Company Analysis Derivative financial assets for hedging 58,576 2,3 Hull-White model, DCF Model Investment properties 2,304,583 3 DCF Model Liabilities Other financial liabilities Financial liabilities at fair value through profit or loss ₩ 38 2 DCF Model Derivative financial liabilities for hedging 20,096 2 DCF Model December 31, 2020 (In millions of Korean won) Fair value Level Valuation techniques Assets Trade and other receivables Financial assets at fair value through other comprehensive income ₩ 1,118,619 2 DCF Model Other financial assets Financial assets at fair value through profit or loss 763,470 2,3 DCF Model, Adjusted net asset model Financial assets at fair value through other comprehensive income 252,910 2,3 DCF Model, Comparable Company Analysis Derivative financial assets for hedging 7,684 2 DCF Model Investment properties 2,645,482 3 DCF Model Liabilities Other financial liabilities Financial liabilities at fair value through profit or loss ₩ 2,682 2,3 DCF Model, Binomial Option Pricing Derivative financial liabilities for hedging 127,929 2,3 Hull-White model, DCF Model |
Summary of Details and Changes of Total Deferred Difference | In relation to this, details and changes of the total deferred difference for the years ended December 31, 2019 and 2020, are as follows: 2019 2020 (In millions of Korean won) Derivatives used Derivative held Derivatives used Derivative held I. Beginning balance ₩ 5,107 ₩ (2,824 ) ₩ 3,682 ₩ — II. New transactions — — — — III. Recognized at fair value through profit or loss (1,425 ) 2,824 (1,425 ) — IV. Ending balance (I+II+III) ₩ 3,682 ₩ — ₩ 2,257 ₩ — |
Interests in Unconsolidated S_2
Interests in Unconsolidated Structured Entities (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Investments accounted for using equity method [abstract] | |
Summary of Unconsolidated Structured Entities and Nature of Risks | Details of scale of unconsolidated structured entities and nature of the risks associated with an entity’s interests in unconsolidated structured entities as at December 31, 2019 and 2020, are as follows: (In millions of Korean won) December 31, 2019 Real Estate PEF and Asset Total Total assets of unconsolidated structured entities ₩ 1,595,895 ₩ 4,060,992 ₩ 2,562,931 ₩ 8,219,818 Assets recognized in statement of financial position Other financial assets ₩ 15,816 ₩ 100,496 ₩ — ₩ 116,312 Joint ventures and associates 8,542 192,022 — 200,564 Total ₩ 24,358 ₩ 292,518 ₩ — ₩ 316,876 Maximum loss exposure 1 Investment assets ₩ 24,358 ₩ 292,518 ₩ — ₩ 316,876 Total ₩ 24,358 ₩ 292,518 ₩ — ₩ 316,876 1 It includes the investments recognized in the Group’s consolidated financial statements and the amounts which are probable to be determined when certain conditions are met by agreements including purchase agreements, credit granting and others. December 31, 2020 (In millions of Korean won) Real Estate PEF and Asset Total Total assets of unconsolidated structured entities ₩ 2,004,869 ₩ 4,380,534 ₩ 2,152,412 ₩ 8,537,815 Assets recognized in statement of financial position Other financial assets ₩ 29,874 ₩ 128,332 ₩ — ₩ 158,206 Joint ventures and associates 51,607 219,753 — 271,360 Total ₩ 81,481 ₩ 348,085 ₩ — ₩ 429,566 Maximum loss exposure 1 Investment assets ₩ 81,481 ₩ 348,085 ₩ — ₩ 429,566 Cash deficiency support — 29,130 — 29,130 Total ₩ 81,481 ₩ 377,215 ₩ — ₩ 458,696 1 It includes the investments recognized in the Group’s consolidated financial statements and the amounts which are probable to be determined when certain conditions are met by agreements including purchase agreements, credit granting and others. |
Information About Non-control_2
Information About Non-controlling Interests (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Changes in Accumulated Non-controlling Interests | Profit or loss allocated to non-controlling non-controlling (In millions of Korean won) December 31, 2018 Non- Accumulated non-controlling Profit or loss non-controlling Dividend paid to non- controlling Others Accumulated non-controlling KT Skylife Co., Ltd. 49.7 % ₩ 328,302 ₩ 23,405 ₩ (8,279 ) ₩ 30,722 ₩ 374,150 BC Card Co., Ltd. 30.5 % 339,067 28,418 (35,924 ) 13,986 345,547 KT Powertel Co., Ltd. 55.2 % 53,053 (3,058 ) — 2,870 52,865 KT Hitel Co.,Ltd. 32.9 % 53,146 454 — (1,264 ) 52,336 KT Telecop Co., Ltd. 13.2 % 103,468 59 — (170 ) 103,357 (In millions of Korean won) December 31, 2019 Non- Accumulated non-controlling Profit or loss non-controlling Dividend to non- Others Accumulated non-controlling KT Skylife Co., Ltd. 49.7 % ₩ 374,150 ₩ 10,029 ₩ (8,279 ) ₩ 6 ₩ 375,906 BC Card Co., Ltd. 30.5 % 345,547 37,795 (18,900 ) 53,033 417,475 KT Powertel Co., Ltd. 55.2 % 52,865 1,751 — (340 ) 54,276 KT Hitel Co., Ltd. 32.9 % 52,336 1,720 — 653 54,709 KT Telecop Co., Ltd. 13.2 % 103,357 (588 ) — (99,119 ) 3,650 (In millions of Korean won) December 31, 2020 Non- Accumulated non-controlling Profit or loss non-controlling Dividend non- Others Accumulated non-controlling KT Skylife Co., Ltd. 49.7 % ₩ 375,906 ₩ 22,171 ₩ (8,279 ) ₩ (898 ) ₩ 388,900 BC Card Co., Ltd. 30.5 % 417,475 9,899 (22,787 ) 7,239 411,826 KT Powertel Co., Ltd. 55.2 % 54,276 2,151 (478 ) (202 ) 55,747 KT Hitel Co., Ltd. 32.9 % 54,709 (1,840 ) — (2,563 ) 50,306 KT Telecop Co., Ltd. 13.2 % 3,650 152 — (208 ) 3,594 |
Summary of Financial Information on Subsidiaries | Summarized consolidated statements of financial position as at December 31, 2018, 2019 and 2020, are as follows: December 31, 2018 (In millions of Korean won) KT Skylife BC Card Co., KT Powertel KT Hitel KT Telecop Co., Ltd. Non-controlling 49.7 % 30.5 % 55.2 % 32.9 % 13.2 % Current assets ₩ 301,739 ₩ 2,997,429 ₩ 84,785 ₩ 161,162 ₩ 52,367 Non-current 514,263 724,950 39,279 111,546 220,125 Current liabilities 112,411 2,520,050 27,187 63,231 85,648 Non-current 37,430 110,486 1,030 2,812 54,666 Equity 666,161 1,091,843 95,847 206,665 132,178 Operating revenue 694,059 3,551,715 65,620 279,117 328,262 Profit or loss for the year 52,010 70,889 (5,545 ) 657 166 Total comprehensive income (loss) 47,787 116,604 (5,792 ) 738 (1,517 ) Cash flows from operating activities 183,474 86,299 11,603 43,855 40,351 Cash flows from investing activities (139,846 ) 128,538 (2,580 ) (26,335 ) (76,969 ) Cash flows from financing activities (77,647 ) (117,561 ) — — 10,000 Net increase (decrease) in cash and cash equivalents (34,019 ) 97,276 9,023 17,520 (26,618 ) Cash and cash equivalents at beginning of year 65,747 177,826 6,626 21,647 32,326 Exchange differences — (13 ) — 19 — Cash and cash equivalents at end of year 31,728 275,089 15,649 39,186 5,708 December 31, 2019 (In millions of Korean won) KT Skylife BC Card Co., KT Powertel KT Hitel KT Telecop Co., Ltd. Non-controlling 49.7 % 30.5 % 55.2 % 32.9 % 13.2 % Current assets ₩ 459,077 ₩ 2,580,634 ₩ 86,465 ₩ 115,694 ₩ 55,908 Non-current 389,199 1,332,348 31,587 164,124 223,969 Current liabilities 123,506 2,452,219 17,757 62,378 64,218 Non-current 19,333 142,013 2,009 12,391 89,622 Equity 705,437 1,318,750 98,286 205,049 126,037 Operating revenue 704,996 3,553,008 62,846 323,065 332,063 Profit or loss for the year 56,008 115,885 3,085 1,426 (4,875 ) Total comprehensive income (loss) 55,936 289,122 2,469 (1,840 ) (6,558 ) Cash flows from operating activities 152,549 429,331 780 49,870 52,693 Cash flows from investing activities (101,594 ) (419,894 ) (9,525 ) (50,138 ) (44,393 ) Cash flows from financing activities (18,833 ) (5,744 ) (687 ) (1,860 ) (5,227 ) Net increase (decrease) in cash and cash equivalents 32,122 3,693 (9,432 ) (2,128 ) 3,073 Cash and cash equivalents at beginning of year 31,728 275,089 15,649 39,186 5,708 Exchange differences — 380 — (15 ) — Cash and cash equivalents at end of year 63,850 279,162 6,217 37,043 8,781 December 31, 2020 (In millions of Korean won) KT Skylife BC Card Co., KT Powertel KT Hitel KT Telecop Co., Ltd. Non-controlling 49.7 % 30.5 % 55.2 % 32.9 % 13.2 % Current assets ₩ 480,450 ₩ 1,785,914 ₩ 90,056 ₩ 140,948 ₩ 79,076 Non-current 439,026 1,298,484 29,638 148,001 239,380 Current liabilities 153,236 1,602,667 17,045 74,045 136,565 Non-current 21,803 176,083 1,788 18,554 57,172 Equity 744,437 1,305,648 100,861 196,350 124,719 Operating revenue 706,631 3,387,641 65,898 350,231 392,489 Profit or loss for the year 58,190 39,455 3,809 2,080 212 Total comprehensive income (loss) 55,647 61,796 3,442 (8,700 ) (1,319 ) Cash flows from operating activities 160,934 (119,163 ) 6,011 62,521 35,834 Cash flows from investing activities (105,293 ) 58,042 (3,353 ) (58,186 ) (57,976 ) Cash flows from financing activities (19,650 ) 22,790 (1,515 ) (1,856 ) 14,652 Net increase (decrease) in cash and cash equivalents 35,991 (38,331 ) 1,143 2,479 (7,490 ) Cash and cash equivalents at beginning of year 63,850 279,162 6,217 37,043 8,781 Exchange differences (7 ) (247 ) — (83 ) — Cash and cash equivalents at end of year 99,834 240,584 7,360 39,439 1,29 1 |
Summary of Changes in Ownership Interest on the Equity Attributable to Owners | The effect of changes in the ownership interest on the equity attributable to owners of the Group during 2018, 2019 and 2020 is summarized as follows: (In millions of Korean won) 2018 2019 2020 Carrying amount of non-controlling ₩ (194 ) ₩ (9,566 ) ₩ 1,750 Consideration paid to non-controlling 11,312 484 9,878 Excess of consideration paid recognized in parent’s equity ₩ 11,118 ₩ (9,082 ) ₩ 11,628 |
Business Combination (Tables)
Business Combination (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Business Combination | As of the acquisition date of control, the total consideration transferred, the recognized amount of assets acquired and liabilities acquired by major types, and calculation details of goodwill are as follows: (In millions of Korean won) Amount Total transfer cost (a) ₩ 46,800 Recognized amount of assets acquired and liabilities assumed (b) 1 46,393 Cash and cash equivalents 57,845 Trade and other receivable 95,814 Other financial assets 3,110 Other assets 14,021 Inventories 1,521 Property and equipment 3,128 Intangible assets 410 Trade and other payables (105,964 ) Other liabilities (4,815 ) Current income tax liabilities (3,664 ) Other provisions (13,745 ) Retirement benefit liabilities (1,268 ) Goodwill (a-b) ₩ 407 1 Assets acquired and liabilities acquired in accordance with IFRS 3 Business Combinations |
Changes in Accounting Policie_2
Changes in Accounting Policies - Determination of Lease Term Considering Economic Penalty (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Disclosure Of Detailed Information About Impact On Consolidated Financial Statements Due to Application of Accounting Policy Explanatory | In relation to the changes in accounting policy, the adjusted amounts recognized in each line item in the consolidated financial statements are as follows: Consolidated Statements of Financial Position December 31, 2019 December 31, 2020 (In millions of Korean won) Previously Adjustment Adjusted Amount based Adjustment Amount based Current assets Prepaid expenses ₩ 76,036 ₩ (1,026 ) ₩ 75,010 ₩ 61,930 ₩ (2,119 ) ₩ 59,811 Non-current Right-of-use 788,497 479,832 1,268,329 585,034 632,145 1,217,179 Current liabilities Lease liabilities ₩ 355,833 ₩ 36,600 ₩ 392,433 ₩ 281,961 ₩ 63,263 ₩ 345,224 Non-current Lease liabilities 373,307 445,612 818,919 231,884 566,532 798,416 Total liabilities ₩ 729,140 ₩ 482,212 ₩ 1,211,352 ₩ 513,845 ₩ 629,795 ₩ 1,143,640 Net assets Retained earnings ₩ 11,594,322 ₩ (3,406 ) ₩ 11,590,916 ₩ 12,155,188 ₩ 232 ₩ 12,155,420 Total equity ₩ 11,594,322 ₩ (3,406 ) ₩ 11,590,916 ₩ 12,155,188 ₩ 232 ₩ 12,155,420 Consolidated Statements of Operations 2019 2020 (In millions of Korean won) Previously Adjustment Adjusted Amount Adjustment Amount Operating revenue ₩ 24,899,189 ₩ — ₩ 24,899,189 ₩ 24,434,851 ₩ 5,796 ₩ 24,440,647 Operating expenses 23,879,015 (6,796 ) 23,872,219 23,425,377 (7,063 ) 23,418,314 Finance income 424,395 — 424,395 498,614 — 498,614 Finance costs 421,931 10,202 432,133 498,161 9,222 507,383 Income tax expense 320,060 — 320,060 285,349 — 285,349 Profit for the year 699,274 (3,406 ) 695,868 742,619 3,637 746,256 Basic earnings per share 2,648 (14 ) 2,634 2,843 15 2,858 Diluted earnings per share 2,646 (14 ) 2,632 2,840 18 2,858 |
Events after Reporting Period (
Events after Reporting Period (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Text block [abstract] | |
Summary of Public Bonds Issued After Reporting Period | The Group has issued the following bonds since the end of the reporting period . Type Issued date Face value (In millions Interest Redemption The 194-1st Jan. 27, 2021 ₩ 130,000 1.13 % Jan. 26, 2024 The 194-2nd Jan. 27, 2021 140,000 1.45 % Jan. 27, 2026 The 194-3rd Jan. 27, 2021 50,000 1.85 % Jan. 27, 2031 The 194-4th Jan. 27, 2021 80,000 1.98 % Jan. 25, 2041 |
General Information - Additiona
General Information - Additional Information (Detail) - shares | Jul. 02, 2001 | May 09, 1999 |
Disclosure of general information [line items] | ||
Number of additional shares issued | 55,502,161 | 24,282,195 |
Government Owned shares [member] | ||
Disclosure of general information [line items] | ||
Number of additional shares issued | 20,813,311 |
General Information - Summary o
General Information - Summary of Consolidated Subsidiaries (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of subsidiaries [line items] | |||
Total assets | ₩ 33,662,545 | ₩ 34,632,214 | |
Total liabilities | 18,111,112 | 19,491,530 | |
Operating revenues | 24,440,647 | 24,899,189 | ₩ 23,436,050 |
Profit (loss) for the year | ₩ 746,256 | ₩ 695,868 | ₩ 719,412 |
KT Powertel Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Powertel Co., Ltd. | KT Powertel Co., Ltd. | KT Powertel Co., Ltd. |
Total assets | ₩ 119,694 | ₩ 118,052 | ₩ 124,064 |
Type of Business | Trunk Radio System (TRS) business | ||
Total liabilities | ₩ 18,833 | 19,766 | 28,217 |
Location | Korea | ||
Operating revenues | ₩ 65,897 | ₩ 62,846 | 65,620 |
Controlling percentage ownership | 44.80% | 44.80% | |
Profit (loss) for the year | ₩ 3,809 | ₩ 3,085 | ₩ (5,545) |
Closing month | December | ||
KT Linkus Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Linkus Co., Ltd. | KT Linkus Co., Ltd. | KT Linkus Co., Ltd |
Total assets | ₩ 58,372 | ₩ 70,494 | ₩ 54,147 |
Type of Business | Public telephone maintenance | ||
Total liabilities | ₩ 54,022 | 62,088 | 44,895 |
Location | Korea | ||
Operating revenues | ₩ 84,519 | ₩ 97,892 | 106,337 |
Controlling percentage ownership | 92.40% | 92.40% | |
Profit (loss) for the year | ₩ (3,212) | ₩ (2,258) | ₩ 1,216 |
Closing month | December | ||
KT Submarine Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Submarine Co., Ltd. | KT Submarine Co., Ltd. | KT Submarine Co., Ltd. |
Total assets | ₩ 116,813 | ₩ 120,947 | ₩ 130,715 |
Type of Business | Submarine cable construction and maintenance | ||
Total liabilities | ₩ 14,032 | 18,452 | 27,530 |
Location | Korea | ||
Operating revenues | ₩ 110,201 | ₩ 55,244 | 61,652 |
Controlling percentage ownership | 39.30% | 39.30% | |
Profit (loss) for the year | ₩ 1,197 | ₩ 486 | ₩ (4,286) |
Closing month | December | ||
KT Telecop Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Telecop Co., Ltd. | KT Telecop Co., Ltd. | KT Telecop Co., Ltd. |
Total assets | ₩ 318,456 | ₩ 279,878 | ₩ 272,492 |
Type of Business | Security service | ||
Total liabilities | ₩ 193,737 | 153,841 | 140,314 |
Location | Korea | ||
Operating revenues | ₩ 392,489 | ₩ 332,063 | 328,262 |
Controlling percentage ownership | 86.80% | 86.80% | |
Profit (loss) for the year | ₩ 212 | ₩ (4,875) | ₩ 166 |
Closing month | December | ||
KT Hitel Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Hitel Co., Ltd. | KT Hitel Co., Ltd. | KT Hitel Co., Ltd. |
Total assets | ₩ 288,949 | ₩ 279,818 | ₩ 272,708 |
Type of Business | Data communication | ||
Total liabilities | ₩ 92,599 | 74,769 | 66,043 |
Location | Korea | ||
Operating revenues | ₩ 350,231 | ₩ 323,065 | 279,117 |
Controlling percentage ownership | 67.10% | 67.10% | |
Profit (loss) for the year | ₩ 2,080 | ₩ 1,426 | ₩ 657 |
Closing month | December | ||
KT service bukbu Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Service Bukbu Co., Ltd. | KT Service Bukbu Co., Ltd. | KT Service Bukbu Co., Ltd. |
Total assets | ₩ 60,825 | ₩ 64,802 | ₩ 30,599 |
Type of Business | Opening services of fixed line | ||
Total liabilities | ₩ 56,554 | 58,984 | 23,964 |
Location | Korea | ||
Operating revenues | ₩ 217,451 | ₩ 219,427 | 195,961 |
Controlling percentage ownership | 67.30% | 67.30% | |
Profit (loss) for the year | ₩ (871) | ₩ (445) | ₩ (31) |
Closing month | December | ||
KT service nambu Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Service Nambu Co., Ltd. | KT Service Nambu Co., Ltd. | KT Service Nambu Co., Ltd. |
Total assets | ₩ 58,182 | ₩ 63,917 | ₩ 37,452 |
Type of Business | Opening services of fixed line | ||
Total liabilities | ₩ 51,460 | 55,548 | 27,939 |
Location | Korea | ||
Operating revenues | ₩ 264,776 | ₩ 266,148 | 230,088 |
Controlling percentage ownership | 77.30% | 77.30% | |
Profit (loss) for the year | ₩ (456) | ₩ 280 | ₩ 160 |
Closing month | December | ||
KT Commerce Inc. [Member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Commerce Inc. | ||
Type of Business | B2C, B2B service | ||
Location | Korea | ||
Controlling percentage ownership | 100.00% | 100.00% | |
Closing month | December | ||
KT Strategic Investment Fund No.2 [Member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Strategic Investment Fund No.2 | ||
Type of Business | Investment fund | ||
Location | Korea | ||
Controlling percentage ownership | 100.00% | 100.00% | |
Closing month | December | ||
KT Strategic Investment Fund No.3 [Member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Strategic Investment Fund No.3 | ||
Type of Business | Investment fund | ||
Location | Korea | ||
Controlling percentage ownership | 100.00% | 100.00% | |
Closing month | December | ||
KT Strategic Investment Fund No.4 [Member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Strategic Investment Fund No.4 | ||
Type of Business | Investment fund | ||
Location | Korea | ||
Controlling percentage ownership | 100.00% | 100.00% | |
Closing month | December | ||
KT Strategic Investment Fund No.5 [Member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Strategic Investment Fund No.5 | ||
Type of Business | Investment fund | ||
Location | Korea | ||
Controlling percentage ownership | 100.00% | 100.00% | |
Closing month | December | ||
BCVP Strategic Investment Fund Number One [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | BC-VP Strategic Investment Fund No.1 | ||
Type of Business | Investment fund | ||
Location | Korea | ||
Controlling percentage ownership | 100.00% | 100.00% | |
Closing month | December | ||
BC Card Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | BC Card Co., Ltd. | BC Card Co., Ltd. | BC Card Co., Ltd.1 |
Total assets | ₩ 3,084,398 | ₩ 3,912,982 | ₩ 3,722,379 |
Type of Business | Credit card business | ||
Total liabilities | ₩ 1,778,751 | 2,594,232 | 2,630,536 |
Location | Korea | ||
Operating revenues | ₩ 3,387,640 | ₩ 3,553,008 | 3,551,715 |
Controlling percentage ownership | 69.50% | 69.50% | |
Profit (loss) for the year | ₩ 39,455 | ₩ 115,885 | ₩ 70,889 |
Closing month | December | ||
VP Inc. [Member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | VP Inc. | ||
Type of Business | Payment security service for credit card, others | ||
Location | Korea | ||
Controlling percentage ownership | 50.90% | 50.90% | |
Closing month | December | ||
H&C Network [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | H&C Network | H&C Network | H&C Network |
Total assets | ₩ 269,651 | ₩ 282,016 | ₩ 245,841 |
Type of Business | Call centre for financial sectors | ||
Total liabilities | ₩ 61,365 | 68,401 | 63,188 |
Location | Korea | ||
Operating revenues | ₩ 322,690 | ₩ 320,701 | 297,470 |
Controlling percentage ownership | 100.00% | 100.00% | |
Profit (loss) for the year | ₩ 2,413 | ₩ (1,593) | ₩ (15,944) |
Closing month | December | ||
BC Card China Co., Ltd. [Member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | BC Card China Co., Ltd. | ||
Type of Business | Software development and data processing | ||
Location | China | ||
Controlling percentage ownership | 100.00% | 100.00% | |
Closing month | December | ||
INITECH Co., Ltd. [Member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | INITECH Co., Ltd. | ||
Type of Business | Internet banking ASP and security solutions | ||
Location | Korea | ||
Controlling percentage ownership | 58.20% | 58.20% | |
Closing month | December | ||
Smartro Co., Ltd. [Member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | Smartro Co., Ltd. | ||
Type of Business | VAN (Value Added Network) business | ||
Location | Korea | ||
Controlling percentage ownership | 64.50% | 64.50% | |
Closing month | December | ||
KTDS Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KTDS Co., Ltd. | KTDS Co., Ltd. | KTDS Co., Ltd |
Total assets | ₩ 183,297 | ₩ 158,153 | ₩ 148,675 |
Type of Business | System integration and maintenance | ||
Total liabilities | ₩ 133,129 | 105,462 | 95,834 |
Location | Korea | ||
Operating revenues | ₩ 499,990 | ₩ 428,758 | 434,302 |
Controlling percentage ownership | 95.50% | 95.50% | |
Profit (loss) for the year | ₩ 10,635 | ₩ 9,027 | ₩ 8,586 |
Closing month | December | ||
KT M Hows Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT M Hows Co., Ltd. | KT M Hows Co., Ltd. | KT M Hows Co., Ltd. |
Total assets | ₩ 104,704 | ₩ 74,326 | ₩ 60,197 |
Type of Business | Mobile marketing | ||
Total liabilities | ₩ 76,315 | 50,638 | 42,386 |
Location | Korea | ||
Operating revenues | ₩ 44,860 | ₩ 33,443 | 26,673 |
Controlling percentage ownership | 90.00% | 90.00% | |
Profit (loss) for the year | ₩ 6,935 | ₩ 6,771 | ₩ 3,691 |
Closing month | December | ||
KT M&S Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT M&S Co., Ltd. | KT M&S Co., Ltd. | KT M&S Co., Ltd. |
Total assets | ₩ 231,260 | ₩ 248,142 | ₩ 228,073 |
Type of Business | PCS distribution | ||
Total liabilities | ₩ 197,306 | 215,777 | 207,740 |
Location | Korea | ||
Operating revenues | ₩ 661,533 | ₩ 813,498 | 791,652 |
Controlling percentage ownership | 100.00% | 100.00% | |
Profit (loss) for the year | ₩ (485) | ₩ 12,732 | ₩ 11,408 |
Closing month | December | ||
GENIE Music Corporation K T Music Corporation [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | GENIE Music Corporation (KT Music Corporation) | GENIE Music Corporation (KT Music Corporation) | GENIE Music Corporation (KT Music Corporation) |
Total assets | ₩ 250,538 | ₩ 234,131 | ₩ 221,559 |
Type of Business | Online music production and distribution | ||
Total liabilities | ₩ 88,488 | 80,952 | 75,827 |
Location | Korea | ||
Operating revenues | ₩ 247,237 | ₩ 230,480 | 171,314 |
Controlling percentage ownership | 36.20% | 36.00% | |
Profit (loss) for the year | ₩ 9,472 | ₩ 7,658 | ₩ 6,374 |
Closing month | December | ||
KT MOS Bukbu Co.,Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT MOS Bukbu Co., Ltd. | KT MOS Bukbu Co., Ltd. | KT MOS Bukbu Co., Ltd. |
Total assets | ₩ 32,167 | ₩ 33,376 | ₩ 14,121 |
Type of Business | Telecommunication facility maintenance | ||
Total liabilities | ₩ 26,070 | 28,841 | 10,571 |
Location | Korea | ||
Operating revenues | ₩ 67,975 | ₩ 63,761 | 16,543 |
Controlling percentage ownership | 100.00% | 100.00% | |
Profit (loss) for the year | ₩ 1,473 | ₩ 353 | ₩ (782) |
Closing month | December | ||
KTMOS Nambu Co.,Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT MOS Nambu Co., Ltd. | KT MOS Nambu Co., Ltd. | KT MOS Nambu Co., Ltd. |
Total assets | ₩ 33,765 | ₩ 34,258 | ₩ 14,313 |
Type of Business | Telecommunication facility maintenance | ||
Total liabilities | ₩ 24,947 | 26,722 | 8,927 |
Location | Korea | ||
Operating revenues | ₩ 71,259 | ₩ 67,300 | 14,941 |
Controlling percentage ownership | 98.40% | 98.40% | |
Profit (loss) for the year | ₩ 1,639 | ₩ 3,099 | ₩ (2,418) |
Closing month | December | ||
KT Skylife Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Skylife Co., Ltd. | KT Skylife Co., Ltd. | KT Skylife Co., Ltd.1 |
Total assets | ₩ 919,476 | ₩ 848,276 | ₩ 816,001 |
Type of Business | Satellite broadcasting business | ||
Total liabilities | ₩ 175,039 | 142,839 | 149,841 |
Location | Korea | ||
Operating revenues | ₩ 706,631 | ₩ 704,996 | 694,059 |
Controlling percentage ownership | 50.30% | 50.30% | |
Profit (loss) for the year | ₩ 58,190 | ₩ 56,008 | ₩ 52,010 |
Closing month | December | ||
Skylife TV Co., Ltd. [Member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | Skylife TV Co., Ltd. | ||
Type of Business | TV contents provider | ||
Location | Korea | ||
Controlling percentage ownership | 92.60% | 92.60% | |
Closing month | December | ||
KT Estate Inc. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Estate Inc. | KT Estate Inc. | KT Estate Inc.1 |
Total assets | ₩ 1,689,601 | ₩ 1,686,000 | ₩ 1,695,995 |
Type of Business | Residential building development and supply | ||
Total liabilities | ₩ 325,429 | 295,706 | 304,712 |
Location | Korea | ||
Operating revenues | ₩ 365,335 | ₩ 485,686 | 569,269 |
Controlling percentage ownership | 100.00% | 100.00% | |
Profit (loss) for the year | ₩ 14,370 | ₩ 48,552 | ₩ 51,854 |
Closing month | December | ||
KT AMC Co., Ltd. [Member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT AMC Co., Ltd. | ||
Type of Business | Asset management and consulting services | ||
Location | Korea | ||
Controlling percentage ownership | 100.00% | 100.00% | |
Closing month | December | ||
NEXR Co., Ltd. [Member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | NEXR Co., Ltd. | ||
Type of Business | Cloud system implementation | ||
Location | Korea | ||
Controlling percentage ownership | 100.00% | 100.00% | |
Closing month | December | ||
KTGDH Co., Ltd. (KTSB Data service) [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KTGDH Co., Ltd. (KTSB Data Service) | KTGDH Co., Ltd. (KTSB Data service) | KTGDH Co., Ltd. (KTSB Data service) |
Total assets | ₩ 11,003 | ₩ 10,437 | ₩ 8,632 |
Type of Business | Data centre development and related service | ||
Total liabilities | ₩ 1,669 | 1,628 | 523 |
Location | Korea | ||
Operating revenues | ₩ 4,282 | ₩ 3,977 | 4,627 |
Controlling percentage ownership | 100.00% | 100.00% | |
Profit (loss) for the year | ₩ 538 | ₩ 344 | ₩ (9,576) |
Closing month | December | ||
KT Sat Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Sat Co., Ltd. | KT Sat Co., Ltd. | KT Sat Co., Ltd. |
Total assets | ₩ 630,740 | ₩ 651,195 | ₩ 685,926 |
Type of Business | Satellite communication business | ||
Total liabilities | ₩ 92,791 | 127,523 | 173,513 |
Location | Korea | ||
Operating revenues | ₩ 173,693 | ₩ 168,376 | 137,186 |
Controlling percentage ownership | 100.00% | 100.00% | |
Profit (loss) for the year | ₩ 14,753 | ₩ 16,497 | ₩ 4,921 |
Closing month | December | ||
Nasmedia Co Ltd [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | Nasmedia Co., Ltd. | Nasmedia Co., Ltd. | Nasmedia Co., Ltd. |
Total assets | ₩ 422,039 | ₩ 356,236 | ₩ 303,112 |
Type of Business | Solution provider and IPTV advertisement sales business | ||
Total liabilities | ₩ 221,371 | 203,105 | 161,164 |
Location | Korea | ||
Operating revenues | ₩ 113,136 | ₩ 117,550 | 106,805 |
Controlling percentage ownership | 44.00% | 44.00% | |
Profit (loss) for the year | ₩ 23,134 | ₩ 22,484 | 20,596 |
Closing month | December | ||
KT sports [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Sports Co., Ltd. | KT Sports Co., Ltd. | |
Total assets | 9,560 | ||
Type of Business | Management of sports group | ||
Total liabilities | 6,376 | ||
Operating revenues | 55,565 | ||
Profit (loss) for the year | ₩ (154) | ||
KT Sports Co Ltd [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Sports Co., Ltd. | KT Sports Co., Ltd. | |
Total assets | ₩ 26,572 | ₩ 15,603 | |
Total liabilities | ₩ 14,940 | 8,333 | |
Location | Korea | ||
Operating revenues | ₩ 46,608 | ₩ 55,241 | |
Controlling percentage ownership | 100.00% | 100.00% | |
Profit (loss) for the year | ₩ (2,516) | ₩ (464) | |
Closing month | December | ||
KT music contents fund no.1 [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Music Contents Fund No.1 | KT Music Contents Fund No.1 | KT Music Contents Fund No.1 |
Total assets | ₩ 4,844 | ₩ 10,579 | ₩ 14,092 |
Type of Business | Music contents investment business | ||
Total liabilities | ₩ 1,525 | 1,677 | 1,035 |
Location | Korea | ||
Operating revenues | ₩ 243 | ₩ 521 | 559 |
Controlling percentage ownership | 80.00% | 80.00% | |
Profit (loss) for the year | ₩ 84 | ₩ 345 | ₩ 294 |
Closing month | December | ||
K T Music Contents Fund No.2 [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Music Contents Fund No.2 | KT Music Contents Fund No.2 | KT Music Contents Fund No.2 |
Total assets | ₩ 15,021 | ₩ 7,675 | ₩ 7,629 |
Type of Business | Music contents investment business | ||
Total liabilities | ₩ 285 | 279 | 281 |
Location | Korea | ||
Operating revenues | ₩ 169 | ₩ 331 | 150 |
Controlling percentage ownership | 100.00% | 100.00% | |
Profit (loss) for the year | ₩ (116) | ₩ 48 | ₩ (142) |
Closing month | December | ||
KT-Michigan global content fund [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT-Michigan Global Contents Fund | KT-Michigan Global Content Fund | KT-Michigan Global Content Fund |
Total assets | ₩ 10,382 | ₩ 11,688 | ₩ 12,741 |
Type of Business | Content investment business | ||
Total liabilities | ₩ 175 | 61 | 0 |
Location | Korea | ||
Operating revenues | ₩ 111 | ₩ 248 | 869 |
Controlling percentage ownership | 88.60% | 88.60% | |
Profit (loss) for the year | ₩ (1,420) | ₩ (1,113) | ₩ (670) |
Closing month | December | ||
Autopion Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | Autopion Co., Ltd. | Autopion Co., Ltd. | Autopion Co., Ltd. |
Total assets | ₩ 4,903 | ₩ 7,460 | ₩ 8,838 |
Type of Business | Information and communication service | ||
Total liabilities | ₩ 4,961 | 4,894 | 5,801 |
Location | Korea | ||
Operating revenues | ₩ 6,174 | ₩ 5,604 | 12,035 |
Controlling percentage ownership | 100.00% | 100.00% | |
Profit (loss) for the year | ₩ (2,459) | ₩ (302) | ₩ 453 |
Closing month | December | ||
KTCS Corporation [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KTCS Corporation | KTCS Corporation | KTCS Corporation |
Total assets | ₩ 384,919 | ₩ 378,171 | ₩ 350,280 |
Type of Business | Database and online information provider | ||
Total liabilities | ₩ 215,175 | 213,983 | 188,561 |
Location | Korea | ||
Operating revenues | ₩ 933,006 | ₩ 944,778 | 1,019,787 |
Controlling percentage ownership | 31.90% | 30.90% | |
Profit (loss) for the year | ₩ 11,323 | ₩ 7,597 | ₩ 11,401 |
Closing month | December | ||
KTIS Corporation [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KTIS Corporation | KTIS Corporation | KTIS Corporation |
Total assets | ₩ 294,289 | ₩ 305,798 | ₩ 229,246 |
Type of Business | Database and online information provider | ||
Total liabilities | ₩ 126,894 | 137,524 | 68,997 |
Location | Korea | ||
Operating revenues | ₩ 454,172 | ₩ 454,561 | 451,532 |
Controlling percentage ownership | 30.80% | 30.10% | |
Profit (loss) for the year | ₩ 7,387 | ₩ 9,205 | ₩ 7,900 |
Closing month | December | ||
KT M mobile Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT M Mobile Co., Ltd. | KT M mobile Co., Ltd. | KT M mobile Co., Ltd. |
Total assets | ₩ 129,011 | ₩ 135,917 | ₩ 146,334 |
Type of Business | Special category telecommunications operator and sales of communication device | ||
Total liabilities | ₩ 27,281 | 30,603 | 35,335 |
Location | Korea | ||
Operating revenues | ₩ 163,472 | ₩ 161,720 | 172,674 |
Controlling percentage ownership | 100.00% | 100.00% | |
Profit (loss) for the year | ₩ (3,617) | ₩ (5,580) | ₩ (10,085) |
Closing month | December | ||
KT Investment Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Investment Co., Ltd. | KT Investment Co., Ltd. | KT Investment Co., Ltd. |
Total assets | ₩ 115,627 | ₩ 73,463 | ₩ 74,580 |
Type of Business | Technology business finance | ||
Total liabilities | ₩ 93,695 | 56,212 | 58,040 |
Location | Korea | ||
Operating revenues | ₩ 47,801 | ₩ 13,375 | 8,095 |
Controlling percentage ownership | 100.00% | 100.00% | |
Profit (loss) for the year | ₩ 4,680 | ₩ 847 | ₩ 247 |
Closing month | December | ||
Whowho&Company Co., Ltd. [Member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | Whowho&Company Co., Ltd. | ||
Type of Business | Software development and supply | ||
Location | Korea | ||
Controlling percentage ownership | 100.00% | 100.00% | |
Closing month | December | ||
PlayD Co., Ltd. (N Search Marketing Co., Ltd.) [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | PlayD Co., Ltd. (N Search Marketing Co., Ltd.) | ||
Type of Business | Advertising agency | ||
Location | Korea | ||
Controlling percentage ownership | 70.40% | 100.00% | |
Closing month | December | ||
Next Connect PFV [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | Next Connect PFV | Next connect PFV | Next connect PFV |
Total assets | ₩ 394,268 | ₩ 385,412 | ₩ 385,769 |
Type of Business | Residential building development and supply | ||
Total liabilities | ₩ 37,271 | 24,275 | 34,370 |
Location | Korea | ||
Operating revenues | ₩ 26 | ₩ 1,590 | 143 |
Controlling percentage ownership | 100.00% | 100.00% | |
Profit (loss) for the year | ₩ (7,101) | ₩ (5,898) | ₩ (12,449) |
Closing month | December | ||
KT Rwanda Networks Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Rwanda Networks Ltd. | KT Rwanda Networks Ltd. | KT Rwanda Networks Ltd. |
Total assets | ₩ 114,768 | ₩ 132,461 | ₩ 144,129 |
Type of Business | Network installation and management | ||
Total liabilities | ₩ 191,781 | 183,164 | 162,801 |
Location | Rwanda | ||
Operating revenues | ₩ 17,870 | ₩ 18,013 | 15,150 |
Controlling percentage ownership | 51.00% | 51.00% | |
Profit (loss) for the year | ₩ (34,610) | ₩ (31,662) | ₩ (29,238) |
Closing month | December | ||
AOS Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | AOS Ltd. | AOS Ltd. | AOS Ltd. |
Total assets | ₩ 11,812 | ₩ 12,337 | ₩ 14,018 |
Type of Business | System integration and maintenance | ||
Total liabilities | ₩ 3,875 | 3,993 | 4,952 |
Location | Rwanda | ||
Operating revenues | ₩ 5,719 | ₩ 6,982 | 6,300 |
Controlling percentage ownership | 51.00% | 51.00% | |
Profit (loss) for the year | ₩ 296 | ₩ (591) | ₩ (680) |
Closing month | December | ||
KT Belgium [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Belgium | KT Belgium | KT Belgium |
Total assets | ₩ 87,608 | ₩ 93,321 | ₩ 90,172 |
Type of Business | Foreign investment business | ||
Total liabilities | 11 | 1 | |
Location | Belgium | ||
Operating revenues | ₩ (81) | 29 | |
Controlling percentage ownership | 100.00% | 100.00% | |
Profit (loss) for the year | ₩ (81) | ₩ (64) | ₩ (43) |
Closing month | December | ||
KT ORS Belgium [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT ORS Belgium | KT ORS Belgium | |
Total assets | ₩ 6,913 | ₩ 6,709 | |
Total liabilities | 14 | 5 | |
Profit (loss) for the year | ₩ (43) | ₩ (46) | |
Korea Telecom Japan Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | Korea Telecom Japan Co., Ltd. | Korea Telecom Japan Co., Ltd. | Korea Telecom Japan Co., Ltd. |
Total assets | ₩ 2,694 | ₩ 1,851 | ₩ 1,326 |
Type of Business | Foreign telecommunication business | ||
Total liabilities | ₩ 2,622 | 2,858 | 2,910 |
Location | Japan | ||
Operating revenues | ₩ 1,853 | ₩ 2,891 | 1,965 |
Controlling percentage ownership | 100.00% | 100.00% | |
Profit (loss) for the year | ₩ 1 | ₩ 651 | ₩ (126) |
Closing month | December | ||
KBTO sp.zo.o. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KBTO sp.z o.o. | KBTO sp.zo.o. | KBTO sp.zo.o. |
Total assets | ₩ 438 | ₩ 1,767 | ₩ 1,364 |
Type of Business | Electronic communication business | ||
Total liabilities | ₩ 117 | 245 | 217 |
Location | Poland | ||
Operating revenues | ₩ 490 | ₩ 519 | 202 |
Controlling percentage ownership | 97.40% | 97.20% | |
Profit (loss) for the year | ₩ (2,823) | ₩ (3,457) | ₩ (3,771) |
Closing month | December | ||
Korea Telecom China Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | Korea Telecom China Co., Ltd. | Korea Telecom China Co., Ltd. | Korea Telecom China Co., Ltd. |
Total assets | ₩ 381 | ₩ 879 | ₩ 661 |
Type of Business | Foreign telecommunication business | ||
Total liabilities | ₩ 21 | 39 | 22 |
Location | China | ||
Operating revenues | ₩ 618 | ₩ 844 | 681 |
Controlling percentage ownership | 100.00% | 100.00% | |
Profit (loss) for the year | ₩ (492) | ₩ 192 | ₩ 10 |
Closing month | December | ||
KT Dutch B.V. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Dutch B.V. | KT Dutch B.V. | KT Dutch B.V. |
Total assets | ₩ 29,585 | ₩ 31,003 | ₩ 31,693 |
Type of Business | Super iMax and East Telecom management | ||
Total liabilities | ₩ 10,109 | 50 | 41 |
Location | Netherlands | ||
Operating revenues | ₩ 26,782 | 191 | |
Controlling percentage ownership | 100.00% | 100.00% | |
Profit (loss) for the year | ₩ 6,061 | ₩ (242) | ₩ 105 |
Closing month | December | ||
Super iMax LLC [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | Super iMax LLC | Super iMax LLC | |
Total assets | ₩ 3,568 | ₩ 4,150 | |
Total liabilities | 5,304 | 4,528 | |
Operating revenues | 4,604 | 4,845 | |
Profit (loss) for the year | ₩ (631) | ₩ (424) | |
East Telecom LLC [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | East Telecom LLC | East Telecom LLC | East Telecom LLC1 |
Total assets | ₩ 20,857 | ₩ 16,590 | |
Type of Business | Fixed line telecommunication business | ||
Total liabilities | 16,302 | 14,263 | |
Location | Uzbekistan | ||
Operating revenues | ₩ 17,186 | 15,087 | |
Controlling percentage ownership | 91.60% | 91.00% | |
Profit (loss) for the year | ₩ 2,140 | ₩ 2,639 | |
Closing month | December | ||
Korea Telecom America, Inc. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | Korea Telecom America, Inc. | Korea Telecom America, Inc. | Korea Telecom America, Inc. |
Total assets | ₩ 4,498 | ₩ 4,611 | ₩ 4,218 |
Type of Business | Foreign telecommunication business | ||
Total liabilities | ₩ 125 | 537 | 832 |
Location | USA | ||
Operating revenues | ₩ 6,808 | ₩ 6,808 | 7,554 |
Controlling percentage ownership | 100.00% | 100.00% | |
Profit (loss) for the year | ₩ 712 | ₩ 572 | ₩ 350 |
Closing month | December | ||
PT. KT Indonesia [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | PT. KT Indonesia | PT. KT Indonesia | |
Total assets | ₩ 8 | ₩ 8 | |
PT BC card Asia Pacific [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | PT. BC Card Asia Pacific | ||
Type of Business | Software development and supply | ||
Location | Indonesia | ||
Controlling percentage ownership | 99.90% | 99.90% | |
Closing month | December | ||
KT Hongkong Telecommunications Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Hong Kong Telecommunications Co., Ltd. | KT Hongkong Telecommunications Co., Ltd. | KT Hongkong Telecommunications Co., Ltd. |
Total assets | ₩ 6,159 | ₩ 5,126 | ₩ 3,616 |
Type of Business | Fixed line communication business | ||
Total liabilities | ₩ 2,800 | 2,923 | 2,143 |
Location | Hong Kong | ||
Operating revenues | ₩ 16,386 | ₩ 13,321 | 9,990 |
Controlling percentage ownership | 100.00% | 100.00% | |
Profit (loss) for the year | ₩ 1,308 | ₩ 586 | ₩ 351 |
Closing month | December | ||
Korea Telecom Singapore Pte.Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | Korea Telecom Singapore Pte. Ltd. | ||
Type of Business | Foreign investment business | ||
Location | Singapore | ||
Controlling percentage ownership | 100.00% | 100.00% | |
Closing month | December | ||
Texnoprosistem LLP [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | Texnoprosistem LLC | ||
Type of Business | Fixed line internet business | ||
Location | Uzbekistan | ||
Controlling percentage ownership | 100.00% | 100.00% | |
Closing month | December | ||
Nasmedia Thailand Co Ltd [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | Nasmedia Thailand Co., Ltd. | ||
Type of Business | Internet advertising solution provider | ||
Location | Thailand | ||
Controlling percentage ownership | 99.90% | 99.90% | |
Closing month | December | ||
KT Huimangjieum [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Huimangjieum | KT Huimangjieum | |
Total assets | ₩ 3,720 | ₩ 2,129 | |
Type of Business | Manufacturing | ||
Total liabilities | ₩ 2,787 | 1,019 | |
Location | Korea | ||
Operating revenues | ₩ 5,239 | ₩ 1,027 | |
Controlling percentage ownership | 100.00% | 100.00% | |
Profit (loss) for the year | ₩ (13) | ₩ (390) | |
Closing month | December | ||
GE Premier 1st Corporate Restructuring Real Estate Investment Trust Co. [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | GE Premier 1st Corporate Restructuring Real Estate Investment Trust Co. | GE Premier 1st Corporate Restructuring Real Estate Investment Trust Co. | |
Total assets | ₩ 5,703 | ₩ 6,285 | |
Type of Business | Residential building investment and rent | ||
Total liabilities | ₩ 1,165 | 1,139 | |
Location | Korea | ||
Operating revenues | ₩ 333 | ₩ 176 | |
Controlling percentage ownership | 68.10% | 63.50% | |
Profit (loss) for the year | ₩ 83 | ₩ 70 | |
Closing month | December | ||
K-REALTY RENTAL HOUSING REIT 3 [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | K-REALTY RENTAL HOUSING REIT 3 | K-REALTY RENTAL HOUSING REIT 3 | |
Total assets | ₩ 300 | ||
Type of Business | Residential building | ||
Location | Korea | ||
Controlling percentage ownership | 88.60% | 100.00% | |
Closing month | December | ||
GENIE Music Corporation(KT Music Corporation) [member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | GENIE Music Corporation (KT Music Corporation) | ||
Storywiz Co Ltd [Member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | Storywiz Co., Ltd | ||
Total assets | ₩ 21,594 | ||
Type of Business | Content and software development and supply | ||
Total liabilities | ₩ 10,065 | ||
Location | Korea | ||
Operating revenues | ₩ 19,209 | ||
Controlling percentage ownership | 100.00% | ||
Profit (loss) for the year | ₩ (1,954) | ||
Closing month | December | ||
KT Engineering Co Ltd KT ENGCORE Co Ltd [Member] | |||
Disclosure of subsidiaries [line items] | |||
Subsidiary | KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) | ||
Total assets | ₩ 138,220 | ||
Type of Business | Telecommunication facility construction and maintenance | ||
Total liabilities | ₩ 102,963 | ||
Location | Korea | ||
Operating revenues | ₩ 346,040 | ||
Controlling percentage ownership | 100.00% | ||
Profit (loss) for the year | ₩ (8,461) | ||
Closing month | December |
Significant Accounting Polici_4
Significant Accounting Policies - Additional Information (Detail) ₩ in Millions | 12 Months Ended | |||
Dec. 31, 2020KRW (₩) | Dec. 31, 2020SGD ($) | Dec. 31, 2020USD ($) | Dec. 31, 2019KRW (₩) | |
Disclosure of significant accounting policies [line items] | ||||
Borrowing | ₩ 7,316,298 | $ 284,000,000 | $ 519,598,989 | ₩ 7,298,867 |
Notional amount | $ 284,000,000 | $ 519,598,989 | ||
Derecognition of financial liabilities, percent | 10.00% | |||
Bottom of range [member] | ||||
Disclosure of significant accounting policies [line items] | ||||
Useful lives of investment property, excluding land depreciated cost model | 10 years | |||
Top of range [member] | ||||
Disclosure of significant accounting policies [line items] | ||||
Useful lives of investment property, excluding land depreciated cost model | 40 years |
Significant Accounting Polici_5
Significant Accounting Policies - Summary of Estimated Useful Lives of Property, Plant and Equipment (Detail) | 12 Months Ended |
Dec. 31, 2020 | |
Buildings [member] | Bottom of range [member] | |
Disclosure of detailed information about property, plant and equipment [line items] | |
Estimated Useful Life | 5 years |
Buildings [member] | Top of range [member] | |
Disclosure of detailed information about property, plant and equipment [line items] | |
Estimated Useful Life | 40 years |
Structures [member] | Bottom of range [member] | |
Disclosure of detailed information about property, plant and equipment [line items] | |
Estimated Useful Life | 5 years |
Structures [member] | Top of range [member] | |
Disclosure of detailed information about property, plant and equipment [line items] | |
Estimated Useful Life | 40 years |
Machinery and equipment (Telecommunications equipment and others) [member] | Bottom of range [member] | |
Disclosure of detailed information about property, plant and equipment [line items] | |
Estimated Useful Life | 2 years |
Machinery and equipment (Telecommunications equipment and others) [member] | Top of range [member] | |
Disclosure of detailed information about property, plant and equipment [line items] | |
Estimated Useful Life | 40 years |
Vehicles [member] | Bottom of range [member] | |
Disclosure of detailed information about property, plant and equipment [line items] | |
Estimated Useful Life | 4 years |
Vehicles [member] | Top of range [member] | |
Disclosure of detailed information about property, plant and equipment [line items] | |
Estimated Useful Life | 6 years |
Tools [member] | Bottom of range [member] | |
Disclosure of detailed information about property, plant and equipment [line items] | |
Estimated Useful Life | 4 years |
Tools [member] | Top of range [member] | |
Disclosure of detailed information about property, plant and equipment [line items] | |
Estimated Useful Life | 6 years |
Office equipment [member] | Bottom of range [member] | |
Disclosure of detailed information about property, plant and equipment [line items] | |
Estimated Useful Life | 2 years |
Office equipment [member] | Top of range [member] | |
Disclosure of detailed information about property, plant and equipment [line items] | |
Estimated Useful Life | 6 years |
Significant Accounting Polici_6
Significant Accounting Policies - Summary of Amortization of Intangible Assets With Limited Useful Life (Detail) | 12 Months Ended |
Dec. 31, 2020 | |
Disclosure of detailed information about intangible assets [line items] | |
Estimated Useful Life | 3 years |
Development costs [member] | Bottom of range [member] | |
Disclosure of detailed information about intangible assets [line items] | |
Estimated Useful Life | 5 years |
Development costs [member] | Top of range [member] | |
Disclosure of detailed information about intangible assets [line items] | |
Estimated Useful Life | 6 years |
Software [member] | Bottom of range [member] | |
Disclosure of detailed information about intangible assets [line items] | |
Estimated Useful Life | 4 years |
Software [member] | Top of range [member] | |
Disclosure of detailed information about intangible assets [line items] | |
Estimated Useful Life | 6 years |
Frequency usage rights [member] | Bottom of range [member] | |
Disclosure of detailed information about intangible assets [line items] | |
Estimated Useful Life | 5 years |
Frequency usage rights [member] | Top of range [member] | |
Disclosure of detailed information about intangible assets [line items] | |
Estimated Useful Life | 10 years |
Others [member] | Bottom of range [member] | |
Disclosure of detailed information about intangible assets [line items] | |
Estimated Useful Life | 1 year |
Others [member] | Top of range [member] | |
Disclosure of detailed information about intangible assets [line items] | |
Estimated Useful Life | 50 years |
Financial Instruments by Cate_3
Financial Instruments by Category - Summary of Financial Instruments by Category (Detail) ₩ in Millions | Dec. 31, 2020KRW (₩) | Dec. 31, 2020SGD ($) | Dec. 31, 2020USD ($) | Dec. 31, 2019KRW (₩) | Dec. 31, 2018KRW (₩) | Dec. 31, 2017KRW (₩) |
Disclosure of detailed information about financial instruments [line items] | ||||||
Trade and other payables | ₩ 7,017,639 | ₩ 8,679,698 | ||||
Borrowings | 7,316,298 | $ 284,000,000 | $ 519,598,989 | 7,298,867 | ||
Other financial liabilities | 263,169 | 150,079 | ||||
Cash and cash equivalents | 2,634,624 | 2,305,894 | ₩ 2,703,422 | ₩ 1,928,182 | ||
Trade and other receivables | 6,095,042 | 7,004,725 | ||||
Other financial assets | 1,747,187 | 1,690,046 | ||||
Loans and receivables [member] | ||||||
Disclosure of detailed information about financial instruments [line items] | ||||||
Cash and cash equivalents | 2,634,624 | 2,305,894 | ||||
Trade and other receivables | 4,976,423 | 5,748,459 | ||||
Other financial assets | 671,068 | 441,804 | ||||
Financial assets at fair value through profit or loss [member] | ||||||
Disclosure of detailed information about financial instruments [line items] | ||||||
Other financial assets | 809,919 | 632,324 | ||||
Derivative used for hedge [member] | ||||||
Disclosure of detailed information about financial instruments [line items] | ||||||
Other financial liabilities | 127,929 | 20,096 | ||||
Other financial assets | 7,684 | 58,576 | ||||
Financial liabilities designated as at fair value through profit or loss [member] | ||||||
Disclosure of detailed information about financial instruments [line items] | ||||||
Other financial liabilities | 2,682 | 38 | ||||
Financial liabilities at amortized cost [member] | ||||||
Disclosure of detailed information about financial instruments [line items] | ||||||
Trade and other payables | 7,017,639 | 8,679,698 | ||||
Borrowings | 7,316,298 | 7,298,867 | ||||
Other financial liabilities | 132,558 | 129,945 | ||||
Financial assets at fair value through other comprehensive income [member] | ||||||
Disclosure of detailed information about financial instruments [line items] | ||||||
Trade and other receivables | 1,118,619 | 1,256,266 | ||||
Other financial assets | ₩ 258,516 | ₩ 557,342 |
Financial Instruments by Cate_4
Financial Instruments by Category - Summary of Gains or Losses Arising From Financial Instruments by Category (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of detailed information about financial instruments [line items] | |||
Interest income | ₩ 270,571 | ₩ 282,704 | ₩ 244,796 |
Interest expense | (263,579) | (278,427) | (296,874) |
Total | 214,063 | (116,643) | |
Gain (loss) on valuation | 40,822 | 15,429 | (5) |
Other comprehensive income (loss) for the year | 23,255 | 172,338 | (54,628) |
Reclassified to profit or loss from other comprehensive income for the year | 111,431 | (44,684) | |
Financial liabilities designated as at fair value through profit or loss [member] | |||
Disclosure of detailed information about financial instruments [line items] | |||
Gain (loss) on disposal | 799 | 2,664 | |
Gain (loss) on valuation | 119 | ||
Derivatives used for hedging [member] | |||
Disclosure of detailed information about financial instruments [line items] | |||
Gain on transactions | 1,141 | 20,678 | |
Gain (loss) on valuation | (161,003) | 4,949 | 42,195 |
Other comprehensive income (loss) for the year | (81,671) | 20,742 | (2,810) |
Reclassified to profit or loss from other comprehensive income for the year | 107,786 | (5,080) | (28,388) |
Financial liabilities at amortized cost [member] | |||
Disclosure of detailed information about financial instruments [line items] | |||
Interest expense | (220,945) | (223,974) | (296,894) |
Loss on repayment | (15) | ||
Gain (loss) foreign currency transaction | (10,717) | (20,958) | (30,956) |
Gain (loss) on foreign currency translation | 141,849 | (75,502) | (66,050) |
Total | 5,481 | ||
Financial assets at amortized cost [member] | |||
Disclosure of detailed information about financial instruments [line items] | |||
Interest income | 55,742 | 79,838 | 93,233 |
Gain (loss) foreign currency transaction | (19,244) | 32,293 | 19,396 |
Gain (loss) on foreign currency translation | (3,895) | (474) | (2,901) |
Gain (loss) on disposal | 138 | (43) | 44 |
Gain (loss) on valuation | (140,474) | (59,947) | (110,544) |
Financial assets at fair value through profit or loss [member] | |||
Disclosure of detailed information about financial instruments [line items] | |||
Interest income | 6,548 | 5,634 | 9,194 |
Dividend income | 4,379 | 1,096 | 1,207 |
Gain (loss) foreign currency transaction | (38) | (27) | |
Gain (loss) on disposal | (329) | 5,115 | 1,713 |
Gain (loss) on valuation | 59,044 | 4,334 | 10,768 |
Financial assets at fair value through other comprehensive income [member] | |||
Disclosure of detailed information about financial instruments [line items] | |||
Interest income | 227,736 | 217,355 | 163,390 |
Dividend income | 56 | 2,312 | 1,704 |
Gain (loss) on disposal | (8,152) | (11,247) | (13,818) |
Impairment loss | (304) | (2,416) | |
Other comprehensive income (loss) for the year | 41,997 | 167,152 | 43,811 |
Derivative financial liabilities [member] | |||
Disclosure of detailed information about financial instruments [line items] | |||
Gain on transactions | 6,050 | 6,332 | 7,272 |
Gain (loss) on valuation | (2,707) | 56,537 | 22,065 |
Other comprehensive income (loss) for the year | (2,373) | 46,806 | 20,078 |
Reclassified to profit or loss from other comprehensive income for the year | ₩ 3,645 | (39,604) | (15,891) |
Held-to-maturity financial assets [member] | |||
Disclosure of detailed information about financial instruments [line items] | |||
Gain (loss) on valuation | ₩ (1,936) | ₩ (2,708) |
Financial Instruments by Cate_5
Financial Instruments by Category - Summary of Gains or Losses Arising From Financial Instruments by Category (Parenthetical) (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of detailed information about financial instruments [line items] | |||
Interest income recognized as operating revenue | ₩ 270,571 | ₩ 282,704 | ₩ 244,796 |
Interest expense recognized as operating expense | 263,579 | 278,427 | 296,874 |
Profit and loss from foreign currency transaction | 17,493 | 24,596 | 17,175 |
Gain (loss) on valuation | 40,822 | 15,429 | (5) |
BC Card Co., Ltd. [member] | |||
Disclosure of detailed information about financial instruments [line items] | |||
Interest income recognized as operating revenue | 21,018 | 21,021 | 20,854 |
Interest expense recognized as operating expense | 548 | 21 | 1,456 |
Profit and loss from foreign currency transaction | 17,006 | 20,422 | 19,687 |
Operating expenses from foreign currency translation | 5 | 0 | 56 |
Dividend income | ₩ 2,250 | ₩ 1,598 | ₩ 2,059 |
Cash and Cash Equivalents to Re
Cash and Cash Equivalents to Restricted Cash - Summary of Restricted Cash and Cash Equivalents (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Cash and cash equivalents [abstract] | ||
Deposit restricted for governmental project and others | ₩ 28,414 | ₩ 21,290 |
Trade and Other Receivables - S
Trade and Other Receivables - Summary of Trade and Other Receivables (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Disclosure of financial assets [line items] | ||
Trade receivables | ₩ 3,056,130 | ₩ 3,150,395 |
Other receivables | 1,846,341 | 2,708,301 |
Trade and other receivables, net | 4,902,471 | 5,858,696 |
Trade receivables | 853,953 | 827,146 |
Other receivables | 396,816 | 354,652 |
Trade and other receivables, net | 1,250,769 | 1,181,798 |
Gross carrying amount [member] | ||
Disclosure of financial assets [line items] | ||
Trade receivables | 3,388,099 | 3,451,107 |
Other receivables | 1,948,108 | 2,787,144 |
Trade and other receivables, net | 5,336,207 | 6,238,251 |
Trade receivables | 892,992 | 874,860 |
Other receivables | 513,926 | 382,468 |
Trade and other receivables, net | 1,406,918 | 1,257,328 |
Accumulated depreciation, amortisation and impairment [member] | ||
Disclosure of financial assets [line items] | ||
Trade receivables | (322,992) | (291,202) |
Other receivables | (101,619) | (78,572) |
Trade and other receivables, net | (424,611) | (369,774) |
Trade receivables | (4,323) | (4,117) |
Other receivables | (102,985) | (5,108) |
Trade and other receivables, net | (107,308) | (9,225) |
Present value discount [member] | ||
Disclosure of financial assets [line items] | ||
Trade receivables | (8,977) | (9,510) |
Other receivables | (148) | (271) |
Trade and other receivables, net | (9,125) | (9,781) |
Trade receivables | (34,716) | (43,597) |
Other receivables | (14,125) | (22,708) |
Trade and other receivables, net | ₩ (48,841) | ₩ (66,305) |
Trade and Other Receivables -_2
Trade and Other Receivables - Summary of Changes in Summary of Changes in Provision for Impairment (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Trade receivables [member] | ||
Disclosure of financial assets [line items] | ||
Beginning balance | ₩ 295,319 | ₩ 359,924 |
Provision | 89,097 | 24,596 |
Write-off or transfer out | (60,598) | (90,513) |
Changes in the scope of consolidation | 3,211 | |
Others | 286 | 1,312 |
Ending balance | 327,315 | 295,319 |
Other receivables [member] | ||
Disclosure of financial assets [line items] | ||
Beginning balance | 83,680 | 93,822 |
Provision | 50,860 | 35,597 |
Reversal | (890) | (475) |
Write-off or transfer out | (25,067) | (44,108) |
Changes in the scope of consolidation | 87,614 | |
Others | 8,407 | (1,156) |
Ending balance | ₩ 204,604 | ₩ 83,680 |
Trade and Other Receivables -_3
Trade and Other Receivables - Summary of Other Receivables (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 |
Disclosure of financial assets [line items] | |||
Receivables | ₩ 6,095,042 | ₩ 7,004,725 | |
Other receivables [member] | |||
Disclosure of financial assets [line items] | |||
Loans | 116,082 | 84,148 | |
Receivables | 1,699,608 | 2,540,315 | |
Accrued income | 6,901 | 8,630 | |
Refundable deposits | 350,180 | 352,293 | |
Loans receivable | 150,527 | 105,961 | |
Finance lease receivables | 64,047 | 39,726 | |
Others | 60,416 | 15,560 | |
Less Provision for impairment | (204,604) | (83,680) | ₩ (93,822) |
Other receivables | ₩ 2,243,157 | ₩ 3,062,953 |
Trade and Other Receivables -_4
Trade and Other Receivables - Summary of Other Receivables (Parenthetical) (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
BC Card Co., Ltd. [member] | ||
Disclosure of financial assets [line items] | ||
Settlement receivable included in other receivables | ₩ 986,384 | ₩ 1,786,610 |
Other Financial Assets and Li_3
Other Financial Assets and Liabilities - Summary of Other Financial Assets and Liabilities (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Other financial assets | ||
Financial assets at amortized cost | ₩ 671,068 | ₩ 441,804 |
Financial assets at fair value through profit or loss | 809,919 | 632,324 |
Financial assets at fair value through other comprehensive income | 258,516 | 557,342 |
Derivative used for hedging | 7,684 | 58,576 |
Less: Non-current | 544,347 | 821,658 |
Current | 1,202,840 | 868,388 |
Other financial liabilities | ||
Financial liabilities at amortized cost | 132,558 | 129,945 |
Financial liabilities at fair value through profit or loss | 2,682 | 38 |
Derivatives used for hedging | 127,929 | 20,096 |
Less: Non-current | (260,676) | (149,136) |
Current Other financial assets | ₩ 2,493 | ₩ 943 |
Other Financial Assets and Li_4
Other Financial Assets and Liabilities - Summary of Other Financial Assets and Liabilities (Parenthetical) (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of detailed information about financial instruments [line items] | ||
Other financial assets | ₩ 1,747,187 | ₩ 1,690,046 |
Korea software financial cooperative [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Available-for-sale financial assets investment amount | 5,491 | 1,849 |
Ustream Inc. [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Proceeds from the disposal of Subsidiary | 104,442 | 91,445 |
Money Market Wrap and Money Market Trust [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Other financial assets | ₩ 509,068 | ₩ 406,062 |
Other Financial Assets and Li_5
Other Financial Assets and Liabilities - Summary of Financial Assets at Fair Value Through Profit or Loss (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Disclosure of financial assets [line items] | ||
Equity Instruments | ₩ 809,919 | ₩ 632,324 |
Less: non-current | (276,109) | (219,026) |
Current | 533,810 | 413,298 |
Equity Instruments Listed [member] | ||
Disclosure of financial assets [line items] | ||
Equity Instruments | 46,449 | 232 |
Equity Instruments Unlisted [member] | ||
Disclosure of financial assets [line items] | ||
Equity Instruments | 83,017 | 90,357 |
Debt securities [member] | ||
Disclosure of financial assets [line items] | ||
Equity Instruments | ₩ 680,453 | 541,657 |
Derivatives held for trading [member] | ||
Disclosure of financial assets [line items] | ||
Equity Instruments | ₩ 78 |
Other Financial Assets and Li_6
Other Financial Assets and Liabilities - Additional Information (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of detailed information about financial instruments [line items] | |||
Ineffective portion recognized in profit or loss cash flow hedge valuation gain | ₩ 2,711 | ₩ 4,181 | ₩ 263 |
Reclassified as accumulated other comprehensive income after tax | 265,087 | ||
Retained earnings of attributable to owners | 12,155,420 | 11,590,916 | |
Disposal of investments in associates and joint ventures | 24 | ₩ 16,930 | ₩ 7,832 |
Equity Instruments Listed [member] | |||
Disclosure of detailed information about financial instruments [line items] | |||
Retained earnings of attributable to owners | 184,330 | ||
Disposal of investments in associates and joint ventures | ₩ 350,777 |
Other Financial Assets and Li_7
Other Financial Assets and Liabilities - Summary of Financial Assets at Fair Value Through Other Comprehensive Income (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Financial assets at fair value through other comprehensive income [line items] | ||
Equity Instruments | ₩ 258,516 | ₩ 557,342 |
Less: non-current | (258,516) | (556,147) |
Current | ||
Equity Instruments Listed [member] | ||
Financial assets at fair value through other comprehensive income [line items] | ||
Equity Instruments | 6,216 | 6,738 |
Equity Instruments Unlisted [member] | ||
Financial assets at fair value through other comprehensive income [line items] | ||
Equity Instruments | 245,730 | 543,518 |
Debt securities [member] | ||
Financial assets at fair value through other comprehensive income [line items] | ||
Equity Instruments | ₩ 6,570 | ₩ 7,086 |
Other Financial Assets and Li_8
Other Financial Assets and Liabilities - Summary of Derivative Financial Assets and Liabilities (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Disclosure of detailed information about financial instruments [line items] | ||
Assets, Total | ₩ 7,684 | ₩ 58,576 |
Less: Assets, non-current | (2,111) | (28,304) |
Assets, Current | 5,573 | 30,272 |
Liabilities, Total | 127,929 | 20,096 |
Less: Liabilities, non-current | (126,408) | (19,177) |
Liabilities, Current | 1,521 | 919 |
Interest rate swap [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Liabilities, Total | 1,078 | 1,464 |
Currency swap [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Assets, Total | 7,684 | 55,569 |
Liabilities, Total | 126,189 | 18,632 |
Currency forwards [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Assets, Total | ₩ 3,007 | |
Liabilities, Total | ₩ 662 |
Other Financial Assets and Li_9
Other Financial Assets and Liabilities - Summary of Valuation Gains and Losses on Derivatives Contracts (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of detailed information about financial instruments [line items] | |||
Valuation gain | ₩ 77,275 | ₩ 66,305 | |
Valuation loss | ₩ 163,710 | 15,829 | 2,045 |
Other comprehensive income | (113,742) | 91,521 | 21,651 |
Interest rate swap [member] | |||
Disclosure of detailed information about financial instruments [line items] | |||
Valuation gain | 192 | ||
Valuation loss | 45 | ||
Other comprehensive income | (567) | (963) | (488) |
Currency swap [member] | |||
Disclosure of detailed information about financial instruments [line items] | |||
Valuation gain | 72,417 | 58,912 | |
Valuation loss | 161,661 | 15,784 | 2,045 |
Other comprehensive income | (113,175) | 87,626 | 22,139 |
Currency forwards [member] | |||
Disclosure of detailed information about financial instruments [line items] | |||
Valuation gain | 4,858 | ₩ 7,201 | |
Valuation loss | ₩ 2,049 | ||
Other comprehensive income | ₩ 4,858 |
Other Financial Assets and L_10
Other Financial Assets and Liabilities - Summary of Hedged items (Detail) - Derivatives [member] - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of detailed information about hedged items [line items] | ||
Book value of hedged items | ₩ 2,643,046 | ₩ 2,673,253 |
Changes in fair value to calculate the ineffective portion of hedges | 151,817 | (60,696) |
Cash flow hedge reserves | 19,779 | (7,609) |
USD | ||
Disclosure of detailed information about hedged items [line items] | ||
Book value of hedged items | 1,924,576 | 1,822,477 |
Changes in fair value to calculate the ineffective portion of hedges | 133,978 | (45,855) |
Cash flow hedge reserves | 19,641 | (5,214) |
JPY | ||
Disclosure of detailed information about hedged items [line items] | ||
Book value of hedged items | 484,960 | 850,776 |
Changes in fair value to calculate the ineffective portion of hedges | 4,228 | (14,841) |
Cash flow hedge reserves | (2,569) | ₩ (2,395) |
SGD | ||
Disclosure of detailed information about hedged items [line items] | ||
Book value of hedged items | 233,510 | |
Changes in fair value to calculate the ineffective portion of hedges | 13,611 | |
Cash flow hedge reserves | ₩ 2,707 |
Other Financial Assets and L_11
Other Financial Assets and Liabilities - Summary of Hedging instruments (Detail) - Derivatives [member] - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of detailed information about hedging instruments [line items] | ||
Contract amount | ₩ 2,771,700 | ₩ 2,616,123 |
Assets | 7,684 | 58,576 |
Liabilities | 127,929 | 20,096 |
Changes in fair value to calculate the ineffective portion of hedges | (154,528) | 64,876 |
USD | ||
Disclosure of detailed information about hedging instruments [line items] | ||
Foreign currency | 1,768,912 | 1,574,068 |
Contract amount | 2,037,568 | 1,788,831 |
Assets | 2,111 | 30,175 |
Liabilities | 100,623 | 10,692 |
Changes in fair value to calculate the ineffective portion of hedges | (136,852) | 49,480 |
JPY | ||
Disclosure of detailed information about hedging instruments [line items] | ||
Foreign currency | 46,000,000 | 80,000,000 |
Contract amount | 488,924 | 827,292 |
Assets | 5,573 | 28,401 |
Liabilities | 13,839 | 9,404 |
Changes in fair value to calculate the ineffective portion of hedges | (4,065) | ₩ 15,396 |
SGD | ||
Disclosure of detailed information about hedging instruments [line items] | ||
Foreign currency | 284,000 | |
Contract amount | 245,208 | |
Liabilities | 13,467 | |
Changes in fair value to calculate the ineffective portion of hedges | ₩ (13,611) |
Other Financial Assets and L_12
Other Financial Assets and Liabilities - Summary of Financial Liabilities at Fair Value Through Profit or Loss (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Financial liabilities at fair value through profit or loss | ||
Derivative liabilities held for trading | ₩ 45 | ₩ 38 |
Conversion Rights and Redemption Rights | 2,637 | |
Total | ₩ 2,682 | ₩ 38 |
Other Financial Assets and L_13
Other Financial Assets and Liabilities - Summary of Valuation Gain and Loss on Financial Liabilities at Fair Value Through Profit or Loss (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 |
Disclosure of financial liabilities [line items] | |||
Derivative liabilities held for trading | ₩ 45 | ₩ 38 | |
Conversion Rights and Redemption Rights | 2,637 | ||
Total | 2,682 | 38 | |
Valuation gain on financial liabilities [member] | |||
Disclosure of financial liabilities [line items] | |||
Derivative liabilities held for trading | 10 | 78 | |
Conversion Rights and Redemption Rights | 162 | ||
Total | 172 | 78 | |
Valuation loss on financial liabilities [member] | |||
Disclosure of financial liabilities [line items] | |||
Derivative liabilities held for trading | 53 | 2,014 | ₩ 2,707 |
Total | ₩ 53 | ₩ 2,014 | ₩ 2,707 |
Inventories - Summary of Invent
Inventories - Summary of Inventories Net (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Disclosure of inventories [line items] | ||
Inventories | ₩ 534,636 | ₩ 791,677 |
Merchandise [member] | ||
Disclosure of inventories [line items] | ||
Inventories | 517,632 | 661,253 |
Others [member] | ||
Disclosure of inventories [line items] | ||
Inventories | 17,004 | 130,424 |
Gross carrying amount [member] | ||
Disclosure of inventories [line items] | ||
Inventories | 667,860 | 936,115 |
Gross carrying amount [member] | Merchandise [member] | ||
Disclosure of inventories [line items] | ||
Inventories | 650,856 | 805,691 |
Gross carrying amount [member] | Others [member] | ||
Disclosure of inventories [line items] | ||
Inventories | 17,004 | 130,424 |
Valuation allowance [member] | ||
Disclosure of inventories [line items] | ||
Inventories | (133,224) | (144,438) |
Valuation allowance [member] | Merchandise [member] | ||
Disclosure of inventories [line items] | ||
Inventories | ₩ (133,224) | ₩ (144,438) |
Inventories - Additional Inform
Inventories - Additional Information (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Classes of current inventories [abstract] | |||
Inventories recognised as expense | ₩ 3,938,842 | ₩ 3,905,630 | ₩ 3,926,199 |
Valuation loss and reversal of valuation loss | ₩ 11,214 | ₩ 30,857 | ₩ 55,288 |
Other Assets and Liabilities -
Other Assets and Liabilities - Summary of Other Assets and Liabilities (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 | |
Other assets | |||
Advance payments | ₩ 168,302 | ₩ 179,475 | |
Prepaid expenses | 66,578 | 84,768 | |
Contract Cost | [1] | 1,804,948 | 1,849,243 |
Contract assets | [1] | 586,438 | 557,041 |
Others | 18,747 | 14,243 | |
Less: Non-current | (768,661) | (685,488) | |
Current | 1,876,352 | 1,999,282 | |
Other liabilities | |||
Advances received | 328,491 | 333,342 | |
Withholdings | 105,415 | 99,844 | |
Unearned revenue | 29,593 | 65,228 | |
Lease liabilities | 1,143,640 | 1,211,352 | |
Contract liabilities | [1] | 384,133 | 365,610 |
Others | 21,597 | 23,298 | |
Less: Non-current | (909,570) | (1,030,117) | |
Current | ₩ 1,103,299 | ₩ 1,068,557 | |
[1] | The amounts include adjustments arising from adoption of IFRS 15 (Note 26). |
Assets Held for Sale - Addition
Assets Held for Sale - Additional Information (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure Of Assets Held For Sale [Line Items] | |||
Proceeds from Assets held for Sale | ₩ 83,241 | ₩ 28,834 | ₩ 9,842 |
Non-current assets held for sale [member] | |||
Disclosure Of Assets Held For Sale [Line Items] | |||
Impairment loss | 0 | ||
Proceeds from Assets held for Sale | ₩ 82,865 |
Assets Held for Sale - Summary
Assets Held for Sale - Summary of Assets Held for Sale (Detail) ₩ in Millions | Dec. 31, 2020KRW (₩) |
Noncurrent assets or disposal groups classified as held for sale or as held for distribution to owners [line items] | |
Non-current assets held for sale | ₩ 1,198 |
Land [member] | |
Noncurrent assets or disposal groups classified as held for sale or as held for distribution to owners [line items] | |
Non-current assets held for sale | 172 |
Buildings And Other [Member] | |
Noncurrent assets or disposal groups classified as held for sale or as held for distribution to owners [line items] | |
Non-current assets held for sale | ₩ 1,026 |
Property and Equipment - Summar
Property and Equipment - Summary of Changes in Property and Equipment (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of detailed information about property, plant and equipment [line items] | ||
Beginning, net | ₩ 13,785,299 | ₩ 13,068,257 |
Changes in accounting policy | (210,028) | |
Acquisition and capital expenditure | 3,151,849 | 3,693,428 |
Disposal and termination | (78,936) | (87,493) |
Depreciation | (2,570,775) | (2,502,576) |
Impairment | (79,775) | (43,260) |
Transfer in (out) | (44,860) | (61,109) |
Transfer to investment properties | (2,056) | (41,335) |
Transfer assets held-for-sale | (90,451) | |
Changes in scope of consolidation | 818 | |
Others | 44,555 | 59,866 |
Ending, net | 14,206,119 | 13,785,299 |
Gross carrying amount [member] | ||
Disclosure of detailed information about property, plant and equipment [line items] | ||
Beginning, net | 45,655,456 | 44,289,629 |
Ending, net | 47,586,332 | 45,655,456 |
Accumulated depreciation, amortisation and impairment [member] | ||
Disclosure of detailed information about property, plant and equipment [line items] | ||
Beginning, net | (31,870,157) | (31,221,372) |
Ending, net | (33,380,213) | (31,870,157) |
Land [member] | ||
Disclosure of detailed information about property, plant and equipment [line items] | ||
Beginning, net | 1,262,181 | 1,281,187 |
Acquisition and capital expenditure | 25,156 | 338 |
Disposal and termination | (1,756) | (1,352) |
Transfer in (out) | 53,238 | 126,066 |
Transfer to investment properties | 6,792 | (33,254) |
Transfer assets held-for-sale | (89,330) | |
Changes in scope of consolidation | 56 | |
Others | (11,040) | (21,474) |
Ending, net | 1,334,627 | 1,262,181 |
Land [member] | Gross carrying amount [member] | ||
Disclosure of detailed information about property, plant and equipment [line items] | ||
Beginning, net | 1,262,313 | 1,281,319 |
Ending, net | 1,334,759 | 1,262,313 |
Land [member] | Accumulated depreciation, amortisation and impairment [member] | ||
Disclosure of detailed information about property, plant and equipment [line items] | ||
Beginning, net | (132) | (132) |
Ending, net | (132) | (132) |
Buildings and structures [member] | ||
Disclosure of detailed information about property, plant and equipment [line items] | ||
Beginning, net | 2,162,064 | 2,007,685 |
Changes in accounting policy | (149) | |
Acquisition and capital expenditure | 7,249 | 4,523 |
Disposal and termination | (3,367) | (4,213) |
Depreciation | (135,646) | (134,350) |
Impairment | (36) | (32) |
Transfer in (out) | 283,937 | 270,980 |
Transfer to investment properties | (8,848) | (8,081) |
Transfer assets held-for-sale | (1,121) | |
Changes in scope of consolidation | 494 | |
Others | 2,175 | 26,822 |
Ending, net | 2,308,022 | 2,162,064 |
Buildings and structures [member] | Gross carrying amount [member] | ||
Disclosure of detailed information about property, plant and equipment [line items] | ||
Beginning, net | 4,125,229 | 3,873,074 |
Ending, net | 4,402,691 | 4,125,229 |
Buildings and structures [member] | Accumulated depreciation, amortisation and impairment [member] | ||
Disclosure of detailed information about property, plant and equipment [line items] | ||
Beginning, net | (1,963,165) | (1,865,389) |
Ending, net | (2,094,669) | (1,963,165) |
Machinery and equipment1 [member] | ||
Disclosure of detailed information about property, plant and equipment [line items] | ||
Beginning, net | 9,093,251 | 8,475,016 |
Changes in accounting policy | (12,947) | |
Acquisition and capital expenditure | 112,085 | 205,359 |
Disposal and termination | (69,401) | (76,457) |
Depreciation | (2,343,965) | (2,278,286) |
Impairment | (35,271) | (41,450) |
Transfer in (out) | 2,489,138 | 2,742,671 |
Changes in scope of consolidation | 225 | |
Others | 68,921 | 79,345 |
Ending, net | 9,314,983 | 9,093,251 |
Machinery and equipment1 [member] | Gross carrying amount [member] | ||
Disclosure of detailed information about property, plant and equipment [line items] | ||
Beginning, net | 37,654,635 | 36,327,007 |
Ending, net | 39,182,265 | 37,654,635 |
Machinery and equipment1 [member] | Accumulated depreciation, amortisation and impairment [member] | ||
Disclosure of detailed information about property, plant and equipment [line items] | ||
Beginning, net | (28,561,384) | (27,851,991) |
Ending, net | (29,867,282) | (28,561,384) |
Others [member] | ||
Disclosure of detailed information about property, plant and equipment [line items] | ||
Beginning, net | 267,535 | 478,381 |
Changes in accounting policy | (196,932) | |
Acquisition and capital expenditure | 47,669 | 64,072 |
Disposal and termination | (3,385) | (4,109) |
Depreciation | (91,164) | (89,940) |
Impairment | (44,468) | (1,751) |
Transfer in (out) | 28,024 | 16,218 |
Transfer to investment properties | 0 | |
Changes in scope of consolidation | 43 | |
Others | 1,398 | 1,596 |
Ending, net | 205,652 | 267,535 |
Others [member] | Gross carrying amount [member] | ||
Disclosure of detailed information about property, plant and equipment [line items] | ||
Beginning, net | 1,612,108 | 1,981,646 |
Ending, net | 1,619,822 | 1,612,108 |
Others [member] | Accumulated depreciation, amortisation and impairment [member] | ||
Disclosure of detailed information about property, plant and equipment [line items] | ||
Beginning, net | (1,344,573) | (1,503,265) |
Ending, net | (1,414,170) | (1,344,573) |
Construction-in-progress [member] | ||
Disclosure of detailed information about property, plant and equipment [line items] | ||
Beginning, net | 1,000,268 | 825,988 |
Acquisition and capital expenditure | 2,959,690 | 3,419,136 |
Disposal and termination | (1,027) | (1,362) |
Impairment | 0 | (27) |
Transfer in (out) | (2,899,197) | (3,217,044) |
Others | (16,899) | (26,423) |
Ending, net | 1,042,835 | 1,000,268 |
Construction-in-progress [member] | Gross carrying amount [member] | ||
Disclosure of detailed information about property, plant and equipment [line items] | ||
Beginning, net | 1,001,171 | 826,583 |
Ending, net | 1,046,795 | 1,001,171 |
Construction-in-progress [member] | Accumulated depreciation, amortisation and impairment [member] | ||
Disclosure of detailed information about property, plant and equipment [line items] | ||
Beginning, net | (903) | (595) |
Ending, net | ₩ (3,960) | ₩ (903) |
Property and Equipment - Summ_2
Property and Equipment - Summary of the Details of Property and Equipment Provided (Detail) ₩ in Millions | 12 Months Ended | |||
Dec. 31, 2020KRW (₩) | Dec. 31, 2019KRW (₩) | Dec. 31, 2020SGD ($) | Dec. 31, 2020USD ($) | |
Disclosure of detailed information about property, plant and equipment [line items] | ||||
Related amount | ₩ 7,316,298 | ₩ 7,298,867 | $ 284,000,000 | $ 519,598,989 |
Land and buildings [member] | ||||
Disclosure of detailed information about property, plant and equipment [line items] | ||||
Carrying amount | 11,644 | 17,097 | ||
Secured amount | ₩ 15,502 | ₩ 18,705 | ||
Related line item | Borrowings | Borrowings | ||
Related amount | ₩ 3,072 | ₩ 4,347 | ||
Secured party | Industrial Bank of Korea, Korea Development Bank | Industrial Bank of Korea, Korea Development Bank , K Bank, Inc. | ||
Others [member] | ||||
Disclosure of detailed information about property, plant and equipment [line items] | ||||
Carrying amount | ₩ 4,142 | ₩ 45,851 | ||
Secured amount | ₩ 249 | ₩ 41,681 | ||
Related line item | Deposits | Borrowings | ||
Related amount | ₩ 249 | ₩ 3,473 | ||
Secured party | K Bank, Inc. | Shinhan Bank |
Property and Equipment - Additi
Property and Equipment - Additional Information (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of detailed information about property, plant and equipment [line items] | ||
Borrowing cost capitalized | ₩ 8,452 | ₩ 6,360 |
Interest rate of capitalized borrowing cost | 2.36% | 2.63% |
Investment Properties - Summary
Investment Properties - Summary of Investment Properties (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of detailed information about investment property [line items] | ||
Beginning balance | ₩ 1,387,430 | ₩ 1,091,084 |
Changes in accounting policy | 46,666 | |
Acquisition | 53,062 | 254,066 |
Disposal and termination | (1,779) | (1,693) |
Depreciation | (64,531) | (65,178) |
Transfer from (to) property and equipment | 2,056 | 41,335 |
Transfer and others | (7,785) | 21,150 |
Ending balance | 1,368,453 | 1,387,430 |
Gross carrying amount [member] | ||
Disclosure of detailed information about investment property [line items] | ||
Beginning balance | 1,880,584 | 1,518,917 |
Ending balance | 1,927,776 | 1,880,584 |
Accumulated depreciation and amortisation [member] | ||
Disclosure of detailed information about investment property [line items] | ||
Beginning balance | (493,154) | (427,833) |
Ending balance | (559,323) | (493,154) |
Land [member] | ||
Disclosure of detailed information about investment property [line items] | ||
Beginning balance | 553,596 | 348,848 |
Acquisition | 11,723 | 148,511 |
Disposal and termination | (1,536) | (285) |
Transfer from (to) property and equipment | (6,792) | 33,254 |
Transfer and others | (18,656) | 23,268 |
Ending balance | 538,335 | 553,596 |
Land [member] | Gross carrying amount [member] | ||
Disclosure of detailed information about investment property [line items] | ||
Beginning balance | 555,164 | 350,417 |
Ending balance | 539,903 | 555,164 |
Land [member] | Accumulated depreciation and amortisation [member] | ||
Disclosure of detailed information about investment property [line items] | ||
Beginning balance | (1,568) | (1,569) |
Ending balance | (1,568) | (1,568) |
Buildings [member] | ||
Disclosure of detailed information about investment property [line items] | ||
Beginning balance | 831,932 | 742,115 |
Changes in accounting policy | 46,666 | |
Acquisition | 7,096 | 103,774 |
Disposal and termination | (243) | (1,408) |
Depreciation | (64,531) | (65,178) |
Transfer from (to) property and equipment | 8,848 | 8,081 |
Transfer and others | 469 | (2,118) |
Ending balance | 783,571 | 831,932 |
Buildings [member] | Gross carrying amount [member] | ||
Disclosure of detailed information about investment property [line items] | ||
Beginning balance | 1,323,518 | 1,168,379 |
Ending balance | 1,341,326 | 1,323,518 |
Buildings [member] | Accumulated depreciation and amortisation [member] | ||
Disclosure of detailed information about investment property [line items] | ||
Beginning balance | (491,586) | (426,264) |
Ending balance | (557,755) | (491,586) |
Investment property, construction-in-progress [Member] | ||
Disclosure of detailed information about investment property [line items] | ||
Beginning balance | 1,902 | 121 |
Acquisition | 34,243 | 1,781 |
Transfer and others | 10,402 | |
Ending balance | 46,547 | 1,902 |
Investment property, construction-in-progress [Member] | Gross carrying amount [member] | ||
Disclosure of detailed information about investment property [line items] | ||
Beginning balance | 1,902 | 121 |
Ending balance | ₩ 46,547 | ₩ 1,902 |
Investment Properties - Additio
Investment Properties - Additional Information (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of detailed information about investment property [line items] | ||
Fair value of investment properties | ₩ 2,645,482 | ₩ 2,304,583 |
Rental income from investment properties | 203,763 | ₩ 198,636 |
Future minimum lease fee | 221,932 | |
Less than 1 year [member] | ||
Disclosure of detailed information about investment property [line items] | ||
Future minimum lease fee | 50,769 | |
1-5 years [member] | ||
Disclosure of detailed information about investment property [line items] | ||
Future minimum lease fee | 92,728 | |
More than 5 years [member] | ||
Disclosure of detailed information about investment property [line items] | ||
Future minimum lease fee | ₩ 78,435 |
Investment Properties - Summa_2
Investment Properties - Summary of Investment Properties Provided as Collateral (Detail) - Land and buildings [member] - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Deposits 1 [member] | ||
Disclosure of detailed information about investment property [line items] | ||
Carrying amount | ₩ 790,414 | ₩ 854,874 |
Secured amount | ₩ 62,968 | ₩ 62,896 |
Related account | Deposits | Deposits |
Related amount | ₩ 56,247 | ₩ 56,831 |
Borrowings [member] | ||
Disclosure of detailed information about investment property [line items] | ||
Carrying amount | 2,861 | 1,915 |
Secured amount | ₩ 3,434 | ₩ 3,044 |
Related account | Borrowings | Borrowings |
Related amount | ₩ 2,928 | ₩ 1,903 |
Intangible Assets - Summary of
Intangible Assets - Summary of Intangible Assets (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of detailed information about intangible assets [line items] | |||
Beginning, net | ₩ 2,834,037 | ₩ 3,407,124 | |
Changes in accounting policy | (26,207) | ||
Acquisition and capital expenditure | 165,630 | 178,694 | |
Disposal and termination | (13,820) | (15,679) | |
Amortization | (628,154) | (660,705) | ₩ (629,526) |
Impairment | (211,637) | (61,898) | |
Changes in scope of consolidation | 4,342 | ||
Others | 10,860 | 12,708 | |
Ending, net | 2,161,258 | 2,834,037 | 3,407,124 |
Gross carrying amount [member] | |||
Disclosure of detailed information about intangible assets [line items] | |||
Beginning, net | 7,996,482 | 8,064,270 | |
Ending, net | 7,898,325 | 7,996,482 | 8,064,270 |
Accumulated depreciation and amortisation [member] | |||
Disclosure of detailed information about intangible assets [line items] | |||
Beginning, net | (5,162,445) | (4,657,146) | |
Ending, net | (5,737,067) | (5,162,445) | (4,657,146) |
Goodwill [member] | |||
Disclosure of detailed information about intangible assets [line items] | |||
Beginning, net | 235,570 | 236,058 | |
Impairment | (605) | ||
Others | (5,485) | 117 | |
Ending, net | 230,085 | 235,570 | 236,058 |
Goodwill [member] | Gross carrying amount [member] | |||
Disclosure of detailed information about intangible assets [line items] | |||
Beginning, net | 541,596 | 542,074 | |
Ending, net | 536,093 | 541,596 | 542,074 |
Goodwill [member] | Accumulated depreciation and amortisation [member] | |||
Disclosure of detailed information about intangible assets [line items] | |||
Beginning, net | (306,026) | (306,016) | |
Ending, net | (306,008) | (306,026) | (306,016) |
Development costs [member] | |||
Disclosure of detailed information about intangible assets [line items] | |||
Beginning, net | 272,634 | 335,110 | |
Acquisition and capital expenditure | 26,990 | 47,903 | |
Disposal and termination | (1,849) | (3,019) | |
Amortization | (104,938) | (115,839) | |
Impairment | (1,333) | ||
Changes in scope of consolidation | 575 | ||
Others | 87,587 | 9,812 | |
Ending, net | 280,999 | 272,634 | 335,110 |
Development costs [member] | Gross carrying amount [member] | |||
Disclosure of detailed information about intangible assets [line items] | |||
Beginning, net | 1,661,372 | 1,680,372 | |
Ending, net | 1,767,422 | 1,661,372 | 1,680,372 |
Development costs [member] | Accumulated depreciation and amortisation [member] | |||
Disclosure of detailed information about intangible assets [line items] | |||
Beginning, net | (1,388,738) | (1,345,262) | |
Ending, net | (1,486,423) | (1,388,738) | (1,345,262) |
Software [member] | |||
Disclosure of detailed information about intangible assets [line items] | |||
Beginning, net | 137,381 | 65,944 | |
Acquisition and capital expenditure | 37,077 | 30,965 | |
Disposal and termination | (105) | (1,267) | |
Amortization | (54,191) | (68,222) | |
Impairment | (1,776) | (1,807) | |
Changes in scope of consolidation | 77 | ||
Others | 27,537 | 11,768 | |
Ending, net | 146,000 | 137,381 | 65,944 |
Software [member] | Gross carrying amount [member] | |||
Disclosure of detailed information about intangible assets [line items] | |||
Beginning, net | 978,139 | 947,312 | |
Ending, net | 1,053,980 | 978,139 | 947,312 |
Software [member] | Accumulated depreciation and amortisation [member] | |||
Disclosure of detailed information about intangible assets [line items] | |||
Beginning, net | (840,758) | (781,368) | |
Ending, net | (907,980) | (840,758) | (781,368) |
Frequency usage rights [member] | |||
Disclosure of detailed information about intangible assets [line items] | |||
Beginning, net | 1,753,941 | 2,156,500 | |
Disposal and termination | 0 | (284) | |
Amortization | (399,348) | (399,382) | |
Impairment | (193,194) | (3,035) | |
Others | (736) | 142 | |
Ending, net | 1,160,663 | 1,753,941 | 2,156,500 |
Frequency usage rights [member] | Gross carrying amount [member] | |||
Disclosure of detailed information about intangible assets [line items] | |||
Beginning, net | 3,622,327 | 3,641,231 | |
Ending, net | 3,373,095 | 3,622,327 | 3,641,231 |
Frequency usage rights [member] | Accumulated depreciation and amortisation [member] | |||
Disclosure of detailed information about intangible assets [line items] | |||
Beginning, net | (1,868,386) | (1,484,731) | |
Ending, net | (2,212,432) | (1,868,386) | (1,484,731) |
Others [member] | |||
Disclosure of detailed information about intangible assets [line items] | |||
Beginning, net | 434,511 | 513,512 | |
Changes in accounting policy | (26,207) | ||
Acquisition and capital expenditure | 101,563 | 99,826 | |
Disposal and termination | (11,866) | (11,109) | |
Amortization | (69,677) | (77,262) | |
Impairment | (16,667) | (55,118) | |
Changes in scope of consolidation | 3,690 | ||
Others | (98,043) | (9,131) | |
Ending, net | 343,511 | 434,511 | 513,512 |
Others [member] | Gross carrying amount [member] | |||
Disclosure of detailed information about intangible assets [line items] | |||
Beginning, net | 1,193,048 | 1,253,281 | |
Ending, net | 1,167,735 | 1,193,048 | 1,253,281 |
Others [member] | Accumulated depreciation and amortisation [member] | |||
Disclosure of detailed information about intangible assets [line items] | |||
Beginning, net | (758,537) | (739,769) | |
Ending, net | ₩ (824,224) | ₩ (758,537) | ₩ (739,769) |
Intangible Assets - Summary o_2
Intangible Assets - Summary of Intangible Assets (Parenthetical) (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Disclosure of detailed information about intangible assets [abstract] | ||
Indefinite useful life | ₩ 221,099 | ₩ 203,240 |
Intangible Assets - Additional
Intangible Assets - Additional Information (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of detailed information about intangible assets [line items] | ||
Acquisition cost | ₩ 201,461 | |
Remaining useful life of Frequency usage rights | 3 years | |
Carrying amount of the 28 gegahertz frequency usage [member] | ||
Disclosure of detailed information about intangible assets [line items] | ||
Impairment loss | ₩ 190,929 | |
KT Skylife Co Ltd [member] | Intangible assets with indefinite useful life [member] | ||
Disclosure of detailed information about intangible assets [line items] | ||
Impairment loss | ₩ 0 | |
Individual assets or cash-generating units [member] | ||
Disclosure of detailed information about intangible assets [line items] | ||
Impairment loss | ₩ 38,519 | |
Discount rate | 7.30% |
Intangible Assets - Summary o_3
Intangible Assets - Summary of Goodwill Allocated to Each Cash-Generation Unit (Detail) ₩ in Millions | Dec. 31, 2020KRW (₩) |
Disclosure of detailed information about intangible assets [line items] | |
Goodwill | ₩ 230,085 |
Mobile services [member] | ICT [member] | |
Disclosure of detailed information about intangible assets [line items] | |
Goodwill | 65,057 |
BC Card Co., Ltd. [member] | Finance [member] | |
Disclosure of detailed information about intangible assets [line items] | |
Goodwill | 41,234 |
GENIE Music Corporation K T Music Corporation [member] | Others [member] | |
Disclosure of detailed information about intangible assets [line items] | |
Goodwill | 50,214 |
PlayD Co., Ltd. (N Search Marketing Co., Ltd.) [member] | Others [member] | |
Disclosure of detailed information about intangible assets [line items] | |
Goodwill | 42,745 |
KT Telecop Co., Ltd. [member] | Others [member] | |
Disclosure of detailed information about intangible assets [line items] | |
Goodwill | 15,418 |
KT MOS Bukbu Co Ltd and others [member] | Others [member] | |
Disclosure of detailed information about intangible assets [line items] | |
Goodwill | ₩ 15,417 |
Intangible Assets - Summary o_4
Intangible Assets - Summary of Goodwill Allocated to Each Cash-Generation Unit (Parenthetical) (Detail) - KRW (₩) | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of detailed information about intangible assets [line items] | ||
Terminal growth rate | 0.00% | |
Expected revenue growth rate | (1.25%) | |
Mobile services [member] | ICT [member] | ||
Disclosure of detailed information about intangible assets [line items] | ||
Terminal growth rate | 0.00% | |
Discount rate | 7.43% | |
Impairment loss on goodwill | ₩ 0 | ₩ 0 |
Description of calculation of recoverable amount | The Group performed its impairment assessment for long-lived assets attributed to the Information and Communication Technology (“ICT”) reporting segment, which includes the Cash-Generating Units of Mobile, Fixed line, and Corporate Services (the “CGUs”). The Group compared the carrying value of each CGU to the estimated recoverable amount. The recoverable amounts of ICT reporting segment are calculated based on value-in use calculations. These calculations use discounted cash flow projections for the next five years based on financial budgets. A terminal growth rate of 0.0% was applied for the cash flows expected to be incurred after five years. This growth rate does not exceed the average growth rate of the industry which the cash-generating unit belongs in. The Group estimated its revenue growth rate 0.42% ~ 3.84% based on past performance and its expectation of future market changes. In addition, management estimated the cash flow based on past performance and its expectation of market growth, and the discount rate 6.21%. Accordingly, the Group did not recognize an impairment loss on ICT reporting segment for the years ended December 31, 2018, 2019 and 2020. | |
Mobile services [member] | Bottom of range [member] | ICT [member] | ||
Disclosure of detailed information about intangible assets [line items] | ||
Expected revenue growth rate | 0.22% | |
Mobile services [member] | Top of range [member] | ICT [member] | ||
Disclosure of detailed information about intangible assets [line items] | ||
Expected revenue growth rate | 4.93% | |
Marketing [member] | Mobile services [member] | ||
Disclosure of detailed information about intangible assets [line items] | ||
Terminal growth rate | 0.00% | |
Expected revenue growth rate | 0.22% | |
Discount rate | 7.43% | |
Impairment loss on goodwill | ₩ 0 | 0 |
Description of calculation of recoverable amount | The recoverable amounts of mobile business are calculated based on value-in use calculations. These calculations use discounted cash flow projections for the next five years based on financial budgets. A terminal growth rate of 0.0% was applied for the cash flows expected to be incurred after five years. This growth rate does not exceed the average growth rate of the industry which the cash-generating unit belongs in. The Group estimated its revenue growth rate 0.42% based on past performance and its expectation of future market changes. In addition, management estimated the cash flow based on past performance and its expectation of market growth, and the discount rates 6.21% used reflected specific risks relating to the relevant CGU. As a result of the impairment test, the Group concluded that the carrying amount of CGU does not exceed the recoverable amount. Accordingly, the Group did not recognize an impairment loss on goodwill on mobile business for the years ended December 31, 2018, 2019 and 2020. | |
Finance [member] | ||
Disclosure of detailed information about intangible assets [line items] | ||
Description of calculation of recoverable amount | The recoverable amounts of BC Card Co., Ltd. are calculated based on value-in use calculations. These calculations use discounted cash flow projections for the next five years based on financial budgets. A terminal growth rate of 0.0% was applied for the cash flows expected to be incurred after five years. This growth rate does not exceed the average growth rate of the industry which the cash-generating unit belongs in. The Group estimated its revenue growth rate 0.92% based on past performance and its expectation of future market changes. In addition, management estimated the cash flow based on past performance and its expectation of market growth, and the discount rates 7.75% used reflected specific risks relating to the relevant CGU. As a result of the impairment test, the Group concluded that the carrying amount of CGU does not exceed the recoverable amount. Accordingly, the Group did not recognize an impairment loss on goodwill on BC Card Co., Ltd. for the years ended December 31, 2018, 2019 and 2020. | |
Finance [member] | BC Card Co., Ltd. [member] | ||
Disclosure of detailed information about intangible assets [line items] | ||
Terminal growth rate | 0.00% | |
Expected revenue growth rate | 0.92% | |
Discount rate | 7.75% | |
Impairment loss on goodwill | ₩ 0 | 0 |
Others [member] | KT Telecop Co., Ltd. [member] | ||
Disclosure of detailed information about intangible assets [line items] | ||
Terminal growth rate | 1.00% | |
Expected revenue growth rate | 9.30% | |
Discount rate | 9.78% | |
Impairment loss on goodwill | ₩ 0 | ₩ 0 |
Description of calculation of recoverable amount | The recoverable amounts of KT Telecop Co., Ltd. are calculated based on value-in use calculations. These calculations use discounted cash flow projections for the next five years based on financial budgets. A terminal growth rate of 1.0% was applied for the cash flows expected to be incurred after five years. This growth rate does not exceed the average growth rate of the industry which the cash-generating unit belongs in. The Group estimated its revenue growth rate 9.30% based on past performance and its expectation of future market changes. In addition, management estimated the cash flow based on past performance and its expectation of market growth, and the discount rates 9.78% used reflected specific risks relating to the relevant CGUs. As a result of the impairment test, the Group concluded that the carrying amount of CGU does not exceed the recoverable amount. Accordingly, the Group did not recognize an impairment loss on goodwill on KT Telecop Co., Ltd. for the years ended December 31, 2018, 2019 and 2020. |
Investments in Associates and_3
Investments in Associates and Joint Ventures - Summary of Details of Associates (Detail) | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Korea Information & Technology Fund [member] | ||
Disclosure of associates [line items] | ||
Percentage of ownership | 33.30% | 33.30% |
Location | Korea | |
Date of financial statements | December 31 | December 31 |
KT-IBKC future investment fund [member] | ||
Disclosure of associates [line items] | ||
Percentage of ownership | 50.00% | 50.00% |
Location | Korea | |
Date of financial statements | December 31 | December 31 |
KT-CKP New Media Investment Fund [member] | ||
Disclosure of associates [line items] | ||
Percentage of ownership | 49.70% | |
Location | Korea | |
Date of financial statements | December 31 | December 31 |
K Bank Inc. [member] | ||
Disclosure of associates [line items] | ||
Percentage of ownership | 34.00% | 10.00% |
Location | Korea | |
Date of financial statements | December 31 | December 31 |
Hyundai Robotics Co., Ltd. [member] | ||
Disclosure of associates [line items] | ||
Percentage of ownership | 10.00% | |
Location | Korea | |
Date of financial statements | December 31 | December 31 |
Investments in Associates and_4
Investments in Associates and Joint Ventures - Summary of Changes in Investments in Associates and Joint Ventures (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure Of Associates And Joint Ventures [Line Items] | ||
Beginning | ₩ 267,660 | ₩ 272,407 |
Acquisition (Disposal) | 273,277 | 13,021 |
Share of net profit from associates and joint ventures | 18,320 | (3,252) |
Others | (1,376) | (14,516) |
Ending | 557,881 | 267,660 |
Korea Information & Technology Fund [member] | ||
Disclosure Of Associates And Joint Ventures [Line Items] | ||
Beginning | 163,975 | 148,255 |
Share of net profit from associates and joint ventures | 12,205 | 17,956 |
Others | (6,025) | (2,236) |
Ending | 170,155 | 163,975 |
KT-SB Venture Investment Fund [member] | ||
Disclosure Of Associates And Joint Ventures [Line Items] | ||
Beginning | 4,470 | |
Acquisition (Disposal) | (4,470) | |
KT-CKP New Media Investment Fund [member] | ||
Disclosure Of Associates And Joint Ventures [Line Items] | ||
Beginning | 134 | 281 |
Acquisition (Disposal) | (134) | (174) |
Share of net profit from associates and joint ventures | 27 | |
Ending | 134 | |
Hyundai Robotics Co., Ltd. [member] | ||
Disclosure Of Associates And Joint Ventures [Line Items] | ||
Acquisition (Disposal) | 50,000 | |
Share of net profit from associates and joint ventures | (64) | |
Others | 1,000 | |
Ending | 50,936 | |
Others [Member] | ||
Disclosure Of Associates And Joint Ventures [Line Items] | ||
Beginning | 44,293 | 56,785 |
Acquisition (Disposal) | 28,400 | (7,867) |
Share of net profit from associates and joint ventures | 34,298 | 7,241 |
Others | 5,337 | (11,866) |
Ending | 112,328 | 44,293 |
KT-IBKC future investment fund [member] | ||
Disclosure Of Associates And Joint Ventures [Line Items] | ||
Beginning | 14,100 | 9,961 |
Acquisition (Disposal) | 3,750 | |
Share of net profit from associates and joint ventures | 2,090 | 389 |
Ending | 16,190 | 14,100 |
K Bank Inc. [member] | ||
Disclosure Of Associates And Joint Ventures [Line Items] | ||
Beginning | 45,158 | 52,655 |
Acquisition (Disposal) | 195,011 | 21,782 |
Share of net profit from associates and joint ventures | (30,209) | (28,865) |
Others | (1,688) | (414) |
Ending | ₩ 208,272 | ₩ 45,158 |
Investments in Associates and_5
Investments in Associates and Joint Ventures - Summary of Changes in Investments in Associates and Joint Ventures (Parenthetical) (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure Of Associates And Joint Ventures [Line Items] | |||
Share gain from associates and joint ventures | ₩ 18,041 | ₩ (3,304) | ₩ (5,467) |
KT Investment Co., Ltd. [member] | |||
Disclosure Of Associates And Joint Ventures [Line Items] | |||
Share gain from associates and joint ventures | ₩ 279 | ₩ 52 | ₩ 445 |
Investments in Associates and_6
Investments in Associates and Joint Ventures - Summary of Financial Information of Associates and Joint Ventures (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure Of Associates And Joint Ventures [Line Items] | |||
Current assets | ₩ 11,154,180 | ₩ 11,975,659 | |
Non-current assets | 22,508,365 | 22,656,555 | |
Current liabilities | 9,192,472 | 10,148,054 | |
Non-current liabilities | 8,918,640 | 9,343,476 | |
Operating revenue | 24,440,647 | 24,899,189 | ₩ 23,436,050 |
Profit (loss) for the year | 746,256 | 695,868 | 719,412 |
Other comprehensive income(loss) | 23,255 | 172,338 | (54,628) |
Total comprehensive income(loss) | 769,511 | 868,206 | ₩ 664,784 |
Korea Information & Technology Fund [member] | |||
Disclosure Of Associates And Joint Ventures [Line Items] | |||
Current assets | 107,652 | 113,233 | |
Non-current assets | 402,812 | 378,691 | |
Operating revenue | 54,473 | 70,577 | |
Profit (loss) for the year | 36,615 | 53,867 | |
Other comprehensive income(loss) | 9,647 | 6,132 | |
Total comprehensive income(loss) | 46,262 | 59,999 | |
Dividends received from associates | 9,241 | 4,280 | |
KT-IBKC future investment fund [member] | |||
Disclosure Of Associates And Joint Ventures [Line Items] | |||
Current assets | 32,379 | 28,200 | |
Operating revenue | 6,551 | 1,694 | |
Profit (loss) for the year | 4,179 | 779 | |
Total comprehensive income(loss) | 4,179 | 779 | |
KT-CKP New Media Investment Fund [member] | |||
Disclosure Of Associates And Joint Ventures [Line Items] | |||
Current assets | 3 | ||
Non-current assets | 267 | ||
Operating revenue | 56 | ||
Profit (loss) for the year | 55 | ||
Total comprehensive income(loss) | 55 | ||
K Bank Inc. [member] | |||
Disclosure Of Associates And Joint Ventures [Line Items] | |||
Current assets | 4,255,620 | 2,480,065 | |
Non-current assets | 74,193 | 78,566 | |
Current liabilities | 3,752,838 | 2,350,375 | |
Non-current liabilities | 88,155 | 3,784 | |
Operating revenue | 80,301 | 92,720 | |
Profit (loss) for the year | (105,374) | (100,773) | |
Other comprehensive income(loss) | (1,126) | (23) | |
Total comprehensive income(loss) | (106,500) | ₩ (100,796) | |
Hyundai Robotics Co., Ltd. [member] | |||
Disclosure Of Associates And Joint Ventures [Line Items] | |||
Current assets | 315,886 | ||
Non-current assets | 125,619 | ||
Current liabilities | 80,615 | ||
Non-current liabilities | 59,324 | ||
Operating revenue | 195,311 | ||
Profit (loss) for the year | (642) | ||
Other comprehensive income(loss) | 11,573 | ||
Total comprehensive income(loss) | ₩ 10,931 |
Investments in Associates and_7
Investments in Associates and Joint Ventures - Summary of Reconciliation of Carrying Amount of Interests in the Associates and Joint Ventures (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure Of Associates And Joint Ventures [Line Items] | ||
Book amount | ₩ 557,881 | ₩ 267,660 |
K Bank Inc. [member] | ||
Disclosure Of Associates And Joint Ventures [Line Items] | ||
Net assets | ₩ 488,819 | ₩ 204,472 |
Percentage of ownership | 34.00% | 10.00% |
Share in net assets | ₩ 166,198 | ₩ 45,158 |
Intercompany transaction and others | 42,074 | |
Book amount | 208,272 | 45,158 |
Korea Information & Technology Fund [member] | ||
Disclosure Of Associates And Joint Ventures [Line Items] | ||
Net assets | ₩ 510,464 | ₩ 491,924 |
Percentage of ownership | 33.30% | 33.30% |
Share in net assets | ₩ 170,155 | ₩ 163,975 |
Book amount | 170,155 | 163,975 |
KT-IBKC future investment fund [member] | ||
Disclosure Of Associates And Joint Ventures [Line Items] | ||
Net assets | ₩ 32,379 | ₩ 28,200 |
Percentage of ownership | 50.00% | 50.00% |
Share in net assets | ₩ 16,190 | ₩ 14,100 |
Book amount | 16,190 | 14,100 |
KT-CKP New Media Investment Fund [member] | ||
Disclosure Of Associates And Joint Ventures [Line Items] | ||
Net assets | ₩ 270 | |
Percentage of ownership | 49.70% | |
Share in net assets | ₩ 134 | |
Book amount | ₩ 134 | |
Hyundai Robotics Co., Ltd. [member] | ||
Disclosure Of Associates And Joint Ventures [Line Items] | ||
Net assets | ₩ 301,566 | |
Percentage of ownership | 10.00% | |
Share in net assets | ₩ 30,157 | |
Intercompany transaction and others | 20,779 | |
Book amount | ₩ 50,936 |
Investments in Associates and_8
Investments in Associates and Joint Ventures - Summary of Reconciliation of Carrying Amount of Interests in the Associates and Joint Ventures (Parenthetical) (Detail) | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
K Bank Inc. [member] | ||
Disclosure Of Associates And Joint Ventures [Line Items] | ||
Percentage of non-voting convertible stock are excluded | 12.10% | 12.10% |
Investments in Associates and_9
Investments in Associates and Joint Ventures - Additional Information (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of associates [abstract] | ||
Loss from associates and joint ventures not recognized | ₩ 992 | ₩ 6,124 |
Accumulated comprehensive loss of associates and joint ventures not recognized | ₩ 8,228 | ₩ 12,599 |
Trade and Other Payables - Summ
Trade and Other Payables - Summary of Trade and Other Payables (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Current liabilities | ||
Trade payables | ₩ 1,239,717 | ₩ 1,304,795 |
Other payables | 4,970,382 | 6,292,683 |
Total | 6,210,099 | 7,597,478 |
Non-current liabilities | ||
Trade payables | 1,528 | 1,733 |
Other payables | 806,012 | 1,080,487 |
Total | ₩ 807,540 | ₩ 1,082,220 |
Trade and Other Payables - Su_2
Trade and Other Payables - Summary of Other Payables (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Trade and other payables [abstract] | ||
Non-trade payables | ₩ 3,841,227 | ₩ 5,275,224 |
Accrued expenses | 933,978 | 987,624 |
Operating deposits | 803,904 | 910,045 |
Others | 197,285 | 200,277 |
Less: non-current | (806,012) | (1,080,487) |
Current | ₩ 4,970,382 | ₩ 6,292,683 |
Trade and Other Payables - Su_3
Trade and Other Payables - Summary of Other Payables (Parenthetical) (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Trade and other payables [abstract] | ||
Settlement payables related to credit card transaction | ₩ 1,007,171 | ₩ 1,824,068 |
Borrowings - Summary of Borrowi
Borrowings - Summary of Borrowings (Detail) ¥ in Thousands, ₩ in Millions | 12 Months Ended | ||||||
Dec. 31, 2020KRW (₩) | Dec. 31, 2020SGD ($) | Dec. 31, 2020USD ($) | Dec. 31, 2020JPY (¥) | Dec. 31, 2019KRW (₩) | Dec. 31, 2019USD ($) | Dec. 31, 2019JPY (¥) | |
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Jun. 5, 2025 | ||||||
Annual interest rates | 0.00% | 0.00% | 0.00% | 0.00% | |||
Less: Current portion | ₩ (1,418,114) | ₩ (1,185,725) | |||||
Borrowings | 7,316,298 | $ 284,000,000 | $ 519,598,989 | 7,298,867 | |||
Gross carrying amount [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | ₩ 7,338,522 | ||||||
Gross carrying amount [member] | Sept. 07, 2034 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Sept. 7, 2034 | ||||||
Annual interest rates | 6.50% | 6.50% | 6.50% | 6.50% | |||
Annual interest rates description | LIBOR(3M)+0.900 | ||||||
Annual interest rates adjustment rate | 0.90% | 0.90% | 0.90% | 0.90% | |||
Gross carrying amount [member] | July 18, 2026 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | July 18, 2026 | ||||||
Annual interest rates | 2.50% | 2.50% | 2.50% | 2.50% | |||
Gross carrying amount [member] | Aug 07, 2022 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Aug. 7, 2022 | ||||||
Annual interest rates | 2.63% | 2.63% | 2.63% | 2.63% | |||
Gross carrying amount [member] | Aug. 20, 2023 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Aug. 20, 2023 | ||||||
Gross carrying amount [member] | Aug. 20, 2020 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Aug. 20, 2020 | ||||||
Gross carrying amount [member] | Nov 01, 2024 [memebr] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Nov. 1, 2024 | ||||||
Annual interest rates description | LIBOR(3M)+0.980 | ||||||
Annual interest rates adjustment rate | 0.98% | 0.98% | 0.98% | 0.98% | |||
Gross carrying amount [member] | June 19, 2023 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | June 19, 2023 | ||||||
Annual interest rates description | SOR(6M)+0.500 | ||||||
Annual interest rates adjustment rate | 0.50% | 0.50% | 0.50% | 0.50% | |||
Gross carrying amount [member] | Sept. 1, 2025 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Sept. 1, 2025 | ||||||
Annual interest rates | 1.00% | 1.00% | 1.00% | 1.00% | |||
Gross carrying amount [member] | July 06, 2020 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | July 6, 2020 | ||||||
Gross carrying amount [member] | July 06, 2021 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | July 6, 2021 | ||||||
Annual interest rates | 0.38% | 0.38% | 0.38% | 0.38% | |||
Gross carrying amount [member] | Nov 13, 2020 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Nov. 13, 2020 | ||||||
Gross carrying amount [member] | July 19, 2022 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | July 19, 2022 | ||||||
Annual interest rates | 0.22% | 0.22% | 0.22% | 0.22% | |||
Gross carrying amount [member] | July 19, 2024 [memeber] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | July 19, 2024 | ||||||
Annual interest rates | 0.33% | 0.33% | 0.33% | 0.33% | |||
Gross carrying amount [member] | Apr. 26, 2021 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Apr. 26, 2021 | ||||||
Annual interest rates | 4.71% | 4.71% | 4.71% | 4.71% | |||
Gross carrying amount [member] | Aug. 26, 2021 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Aug. 26, 2021 | ||||||
Annual interest rates | 4.09% | 4.09% | 4.09% | 4.09% | |||
Gross carrying amount [member] | Oct. 28, 2021 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Oct. 28, 2021 | ||||||
Annual interest rates | 4.31% | 4.31% | 4.31% | 4.31% | |||
Gross carrying amount [member] | Dec. 22, 2021 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Dec. 22, 2021 | ||||||
Annual interest rates | 4.09% | 4.09% | 4.09% | 4.09% | |||
Gross carrying amount [member] | Dec. 22, 2031 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Dec. 22, 2031 | ||||||
Annual interest rates | 4.27% | 4.27% | 4.27% | 4.27% | |||
Gross carrying amount [member] | Apr. 10, 2023 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Apr. 10, 2023 | ||||||
Annual interest rates | 2.95% | 2.95% | 2.95% | 2.95% | |||
Gross carrying amount [member] | Apr. 10, 2033 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Apr. 10, 2033 | ||||||
Annual interest rates | 3.17% | 3.17% | 3.17% | 3.17% | |||
Gross carrying amount [member] | Sept. 16, 2020 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Sept. 16, 2020 | ||||||
Gross carrying amount [member] | June 26, 2024 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | June 26, 2024 | ||||||
Annual interest rates | 3.42% | 3.42% | 3.42% | 3.42% | |||
Gross carrying amount [member] | June 26, 2034 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | June 26, 2024 | ||||||
Annual interest rates | 3.70% | 3.70% | 3.70% | 3.70% | |||
Gross carrying amount [member] | Sept. 02, 2024 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Sept. 2, 2024 | ||||||
Annual interest rates | 3.31% | 3.31% | 3.31% | 3.31% | |||
Gross carrying amount [member] | Sept. 02, 2034 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Sept. 2, 2034 | ||||||
Annual interest rates | 3.55% | 3.55% | 3.55% | 3.55% | |||
Gross carrying amount [member] | Jan. 29, 2020 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Jan. 29, 2020 | ||||||
Gross carrying amount [member] | Jan. 29, 2025 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Jan. 29, 2025 | ||||||
Annual interest rates | 2.45% | 2.45% | 2.45% | 2.45% | |||
Gross carrying amount [member] | Jan. 29, 2035 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Jan. 29, 2035 | ||||||
Annual interest rates | 2.71% | 2.71% | 2.71% | 2.71% | |||
Gross carrying amount [member] | Jan. 28, 2021 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Jan. 28, 2021 | ||||||
Annual interest rates | 1.95% | 1.95% | 1.95% | 1.95% | |||
Gross carrying amount [member] | Jan. 28, 2026 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Jan. 28, 2026 | ||||||
Annual interest rates | 2.20% | 2.20% | 2.20% | 2.20% | |||
Gross carrying amount [member] | Jan. 28, 2036 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Jan. 28, 2036 | ||||||
Annual interest rates | 2.35% | 2.35% | 2.35% | 2.35% | |||
Gross carrying amount [member] | Jan. 29, 2021 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Jan. 29, 2021 | ||||||
Annual interest rates | 2.55% | 2.55% | 2.55% | 2.55% | |||
Gross carrying amount [member] | Jan. 30, 2023 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Jan. 30, 2023 | ||||||
Annual interest rates | 2.75% | 2.75% | 2.75% | 2.75% | |||
Gross carrying amount [member] | Jan. 30, 2028 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Jan. 30, 2028 | ||||||
Annual interest rates | 2.95% | 2.95% | 2.95% | 2.95% | |||
Gross carrying amount [member] | Jan. 30, 2038 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Jan. 30, 2038 | ||||||
Annual interest rates | 2.93% | 2.93% | 2.93% | 2.93% | |||
Gross carrying amount [member] | Jan, 14, 2022 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Jan. 14, 2022 | ||||||
Annual interest rates | 2.05% | 2.05% | 2.05% | 2.05% | |||
Gross carrying amount [member] | Jan, 15, 2024 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Jan. 15, 2024 | ||||||
Annual interest rates | 2.09% | 2.09% | 2.09% | 2.09% | |||
Gross carrying amount [member] | Jan, 15, 2029 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Jan. 15, 2029 | ||||||
Annual interest rates | 2.16% | 2.16% | 2.16% | 2.16% | |||
Gross carrying amount [member] | Jan, 14, 2039 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Jan. 14, 2039 | ||||||
Annual interest rates | 2.21% | 2.21% | 2.21% | 2.21% | |||
Gross carrying amount [member] | Oct, 11, 2022 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Oct. 11, 2022 | ||||||
Annual interest rates | 1.55% | 1.55% | 1.55% | 1.55% | |||
Gross carrying amount [member] | Oct, 11, 2024 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Oct. 11, 2024 | ||||||
Annual interest rates | 1.58% | 1.58% | 1.58% | 1.58% | |||
Gross carrying amount [member] | Oct, 11, 2029 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Oct. 11, 2029 | ||||||
Annual interest rates | 1.62% | 1.62% | 1.62% | 1.62% | |||
Gross carrying amount [member] | Oct, 11, 2039 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | Oct. 11, 2039 | ||||||
Annual interest rates | 1.67% | 1.67% | 1.67% | 1.67% | |||
Gross carrying amount [member] | June 16, 2023 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | June 16, 2023 | ||||||
Annual interest rates | 1.17% | 1.17% | 1.17% | 1.17% | |||
Gross carrying amount [member] | June 17, 2025 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | June 17, 2025 | ||||||
Annual interest rates | 1.43% | 1.43% | 1.43% | 1.43% | |||
Gross carrying amount [member] | June 17, 2030 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | June 17, 2030 | ||||||
Annual interest rates | 1.61% | 1.61% | 1.61% | 1.61% | |||
Gross carrying amount [member] | June 15, 2040 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | June 15, 2040 | ||||||
Annual interest rates | 1.71% | 1.71% | 1.71% | 1.71% | |||
Gross carrying amount [member] | June 23, 2023 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Maturity | June 23, 2023 | ||||||
Annual interest rates | 1.51% | 1.51% | 1.51% | 1.51% | |||
Debentures [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Less: Current portion | ₩ (1,228,283) | (1,052,032) | |||||
Discount on bonds | (19,847) | (20,780) | |||||
Borrowings | 5,714,340 | 5,972,554 | |||||
Debentures [member] | Gross carrying amount [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 6,962,470 | 7,045,366 | |||||
Debentures [member] | Gross carrying amount [member] | Sept. 07, 2034 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 108,800 | $ 100,000,000 | 115,780 | $ 100,000,000 | |||
Debentures [member] | Gross carrying amount [member] | July 18, 2026 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 435,200 | 400,000,000 | 463,120 | 400,000,000 | |||
Debentures [member] | Gross carrying amount [member] | Aug 07, 2022 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 435,200 | 400,000,000 | 463,120 | 400,000,000 | |||
Debentures [member] | Gross carrying amount [member] | Aug. 20, 2023 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 108,800 | 100,000,000 | 115,780 | 100,000,000 | |||
Debentures [member] | Gross carrying amount [member] | Aug. 20, 2020 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 231,560 | 200,000,000 | |||||
Debentures [member] | Gross carrying amount [member] | Nov 01, 2024 [memebr] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 380,800 | 350,000,000 | 405,230 | $ 350,000,000 | |||
Debentures [member] | Gross carrying amount [member] | June 19, 2023 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 233,510 | $ 284,000,000 | |||||
Debentures [member] | Gross carrying amount [member] | Sept. 1, 2025 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 435,200 | $ 400,000,000 | |||||
Debentures [member] | Gross carrying amount [member] | July 06, 2020 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 42,539 | ¥ 4,000,000 | |||||
Debentures [member] | Gross carrying amount [member] | July 06, 2021 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 168,682 | ¥ 16,000,000 | 170,155 | 16,000,000 | |||
Debentures [member] | Gross carrying amount [member] | Nov 13, 2020 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 319,041 | 30,000,000 | |||||
Debentures [member] | Gross carrying amount [member] | July 19, 2022 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 312,061 | 29,600,000 | 314,787 | 29,600,000 | |||
Debentures [member] | Gross carrying amount [member] | July 19, 2024 [memeber] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 4,217 | ¥ 400,000 | 4,254 | ¥ 400,000 | |||
Debentures [member] | Gross carrying amount [member] | Apr. 26, 2021 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 380,000 | 380,000 | |||||
Debentures [member] | Gross carrying amount [member] | Aug. 26, 2021 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 250,000 | 250,000 | |||||
Debentures [member] | Gross carrying amount [member] | Oct. 28, 2021 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 100,000 | 100,000 | |||||
Debentures [member] | Gross carrying amount [member] | Dec. 22, 2021 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 90,000 | 90,000 | |||||
Debentures [member] | Gross carrying amount [member] | Dec. 22, 2031 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 160,000 | 160,000 | |||||
Debentures [member] | Gross carrying amount [member] | Apr. 10, 2023 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 190,000 | 190,000 | |||||
Debentures [member] | Gross carrying amount [member] | Apr. 10, 2033 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 100,000 | 100,000 | |||||
Debentures [member] | Gross carrying amount [member] | Sept. 16, 2020 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 300,000 | ||||||
Debentures [member] | Gross carrying amount [member] | June 26, 2024 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 110,000 | 110,000 | |||||
Debentures [member] | Gross carrying amount [member] | June 26, 2034 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 100,000 | 100,000 | |||||
Debentures [member] | Gross carrying amount [member] | Sept. 02, 2024 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 170,000 | 170,000 | |||||
Debentures [member] | Gross carrying amount [member] | Sept. 02, 2034 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 100,000 | 100,000 | |||||
Debentures [member] | Gross carrying amount [member] | Jan. 29, 2020 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 160,000 | ||||||
Debentures [member] | Gross carrying amount [member] | Jan. 29, 2025 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 240,000 | 240,000 | |||||
Debentures [member] | Gross carrying amount [member] | Jan. 29, 2035 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 50,000 | 50,000 | |||||
Debentures [member] | Gross carrying amount [member] | Jan. 28, 2021 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 130,000 | 130,000 | |||||
Debentures [member] | Gross carrying amount [member] | Jan. 28, 2026 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 100,000 | 100,000 | |||||
Debentures [member] | Gross carrying amount [member] | Jan. 28, 2036 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 70,000 | 70,000 | |||||
Debentures [member] | Gross carrying amount [member] | Jan. 29, 2021 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 110,000 | 110,000 | |||||
Debentures [member] | Gross carrying amount [member] | Jan. 30, 2023 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 150,000 | 150,000 | |||||
Debentures [member] | Gross carrying amount [member] | Jan. 30, 2028 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 170,000 | 170,000 | |||||
Debentures [member] | Gross carrying amount [member] | Jan. 30, 2038 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 70,000 | 70,000 | |||||
Debentures [member] | Gross carrying amount [member] | Jan, 14, 2022 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 220,000 | 220,000 | |||||
Debentures [member] | Gross carrying amount [member] | Jan, 15, 2024 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 80,000 | 80,000 | |||||
Debentures [member] | Gross carrying amount [member] | Jan, 15, 2029 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 110,000 | 110,000 | |||||
Debentures [member] | Gross carrying amount [member] | Jan, 14, 2039 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 90,000 | 90,000 | |||||
Debentures [member] | Gross carrying amount [member] | Oct, 11, 2022 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 340,000 | 340,000 | |||||
Debentures [member] | Gross carrying amount [member] | Oct, 11, 2024 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 100,000 | 100,000 | |||||
Debentures [member] | Gross carrying amount [member] | Oct, 11, 2029 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 50,000 | 50,000 | |||||
Debentures [member] | Gross carrying amount [member] | Oct, 11, 2039 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 110,000 | ₩ 110,000 | |||||
Debentures [member] | Gross carrying amount [member] | June 16, 2023 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 150,000 | ||||||
Debentures [member] | Gross carrying amount [member] | June 17, 2025 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 70,000 | ||||||
Debentures [member] | Gross carrying amount [member] | June 17, 2030 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 20,000 | ||||||
Debentures [member] | Gross carrying amount [member] | June 15, 2040 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | 60,000 | ||||||
Debentures [member] | Gross carrying amount [member] | June 23, 2023 [member] | |||||||
Disclosure of detailed information about borrowings [line items] | |||||||
Borrowings | ₩ 100,000 |
Borrowings - Summary of Borro_2
Borrowings - Summary of Borrowings (Parenthetical) (Detail) ₩ in Millions | Dec. 31, 2020KRW (₩) | Dec. 31, 2020SGD ($) | Dec. 31, 2020USD ($) | Dec. 31, 2019KRW (₩) |
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | ₩ 7,316,298 | $ 284,000,000 | $ 519,598,989 | ₩ 7,298,867 |
Libor rate | 0.238% | 0.238% | 0.238% | |
SOR rate | 0.185% | 0.185% | 0.185% | |
Medium Term Note Programme [member] | Fixed interest rate [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | $ 100,000,000 | |||
Medium Term Note Programme [member] | Top of range [member] | Fixed interest rate [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | $ 2,000,000,000 |
Borrowings - Summary of Korean
Borrowings - Summary of Korean Won and Foreign Currency Borrowings (Detail) ₩ in Millions | 12 Months Ended | |||
Dec. 31, 2020KRW (₩) | Dec. 31, 2020SGD ($) | Dec. 31, 2020USD ($) | Dec. 31, 2019KRW (₩) | |
Disclosure of detailed information about borrowings [line items] | ||||
Maturity | Jun. 5, 2025 | |||
Annual interest rates | 0.00% | 0.00% | 0.00% | |
Borrowings | ₩ 7,316,298 | $ 284,000,000 | $ 519,598,989 | ₩ 7,298,867 |
The 1st CB(Private) Jun. 5, 2020 [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 5,623 | |||
Redemption premium | 2,267 | |||
Bond discount issuance | (4,644) | |||
The 1st CB(Private) Jun. 5, 2020 [member] | The 1st CB(Private) Jun. 5, 2025 [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | ₩ 8,000 |
Borrowings - Summary of Korea_2
Borrowings - Summary of Korean Won and Foreign Currency Borrowings (Parenthetical) (Detail) | 12 Months Ended |
Dec. 31, 2020 | |
Disclosure of detailed information about borrowings [line items] | |
Interest rate | 0.00% |
Maturity yield | 5.00% |
Storywiz Co Ltd [Member] | |
Disclosure of detailed information about borrowings [line items] | |
Appraisal period of common stock conversion to debt | (appraisal period: June 5, 2021~ May 4, 2025) |
Borrowings - Summary of Short-t
Borrowings - Summary of Short-term Borrowing (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of detailed information about borrowings [line items] | ||
Annual interest rates | 0.00% | |
Short-term borrowings | ₩ 95,789 | ₩ 83,500 |
NongHyup Bank [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Short-term borrowings | 40,189 | 15,000 |
Shinhan Bank [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Short-term borrowings | 22,500 | 57,500 |
Korea Development Bank [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Short-term borrowings | 10,000 | 10,000 |
SooHyup Bank [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Short-term borrowings | ₩ 1,000 | |
Woori Bank [Member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Short-term borrowings | 1,900 | |
Industrial Bank Of Korea [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Short-term borrowings | 200 | |
Hana Bank [Member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Short-term borrowings | ₩ 11,000 | |
Short-term borrowings [member] | NongHyup Bank [member] | Bottom of range [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Annual interest rates | 1.74% | |
Short-term borrowings [member] | NongHyup Bank [member] | Top of range [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Annual interest rates | 2.36% | |
Short-term borrowings [member] | Shinhan Bank [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Annual interest rates | 1.431% | |
Annual interest rates description | CD91+1.431% | |
Short-term borrowings [member] | Shinhan Bank [member] | Bottom of range [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Annual interest rates | 2.46% | |
Short-term borrowings [member] | Shinhan Bank [member] | Top of range [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Annual interest rates | 2.96% | |
Short-term borrowings [member] | Korea Development Bank [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Annual interest rates | 3.34% | |
Short-term borrowings [member] | Woori Bank [Member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Annual interest rates | 3.57% | |
Short-term borrowings [member] | Industrial Bank Of Korea [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Annual interest rates | 1.74% | |
Short-term borrowings [member] | Hana Bank [Member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Annual interest rates | 4.20% |
Borrowings - Summary of Long-te
Borrowings - Summary of Long-term Borrowings (Detail) ₩ in Millions | 12 Months Ended | ||||
Dec. 31, 2020KRW (₩) | Dec. 31, 2020SGD ($) | Dec. 31, 2020USD ($) | Dec. 31, 2019KRW (₩) | Dec. 31, 2019USD ($) | |
Disclosure of detailed information about borrowings [line items] | |||||
Annual interest rates | 0.00% | 0.00% | 0.00% | ||
Borrowings | ₩ 7,316,298 | $ 284,000,000 | $ 519,598,989 | ₩ 7,298,867 | |
Total | 5,898,184 | 6,113,142 | |||
Shinhan Bank [member] | Facility loans [member] | |||||
Disclosure of detailed information about borrowings [line items] | |||||
Borrowings | 25,918,000 | 30,008 | $ 25,918,000 | ||
Shinhan Bank [member] | Kookmin Bank and other [member] | |||||
Disclosure of detailed information about borrowings [line items] | |||||
Borrowings | $ | 87,940,000 | ||||
NongHyup Bank [member] | Facility loans [member] | |||||
Disclosure of detailed information about borrowings [line items] | |||||
Borrowings | 79 | ||||
Other Financial Instruments [member] | Kookmin Bank and other [member] | |||||
Disclosure of detailed information about borrowings [line items] | |||||
Borrowings | $ 48,855,000 | 950 | |||
Long-term borrowings [member] | |||||
Disclosure of detailed information about borrowings [line items] | |||||
Borrowings | 272,263 | 190,780 | |||
Less: Current portion | (94,042) | (50,192) | |||
Total | 178,221 | 140,588 | |||
Long-term borrowings [member] | General loans [member] | |||||
Disclosure of detailed information about borrowings [line items] | |||||
Borrowings | ₩ 30,000 | 30,000 | |||
Long-term borrowings [member] | Export-Import Bank of Korea [member] | Inter-Korean Cooperation Fund [member] | |||||
Disclosure of detailed information about borrowings [line items] | |||||
Annual interest rates | 1.50% | 1.50% | 1.50% | ||
Borrowings | ₩ 2,961 | 3,454 | |||
Long-term borrowings [member] | Industrial Bank of Korea [member] | General loans [member] | |||||
Disclosure of detailed information about borrowings [line items] | |||||
Annual interest rates | 2.98% | 2.98% | 2.98% | ||
Borrowings | ₩ 6,000 | 6,000 | |||
Long-term borrowings [member] | Shinhan Bank [member] | General loans [member] | |||||
Disclosure of detailed information about borrowings [line items] | |||||
Annual interest rates | 1.94% | 1.94% | 1.94% | ||
Borrowings | ₩ 5,000 | 5,000 | |||
Long-term borrowings [member] | Shinhan Bank [member] | General Loans 1 [member] | |||||
Disclosure of detailed information about borrowings [line items] | |||||
Annual interest rates description | LIBOR(3M)+1.650 | ||||
Annual interest rates adjustment rate | 1.65% | 1.65% | 1.65% | ||
Borrowings | ₩ 9,694 | $ 8,910,000 | 3,473 | $ 3,000,000 | |
Long-term borrowings [member] | Shinhan Bank [member] | General Loans 2 [member] | |||||
Disclosure of detailed information about borrowings [line items] | |||||
Annual interest rates description | LIBOR(3M)+2.130 | ||||
Annual interest rates adjustment rate | 2.13% | 2.13% | 2.13% | ||
Borrowings | ₩ 27,200 | $ 25,000,000 | |||
Long-term borrowings [member] | Shinhan Bank [member] | Facility loans [member] | |||||
Disclosure of detailed information about borrowings [line items] | |||||
Annual interest rates description | LIBOR(3M)+1.340 | ||||
Annual interest rates adjustment rate | 1.34% | 1.34% | 1.34% | ||
Borrowings | ₩ 28,199 | ||||
Long-term borrowings [member] | CA-CIB [member] | Long-term CP [member] | |||||
Disclosure of detailed information about borrowings [line items] | |||||
Annual interest rates | 1.26% | 1.26% | 1.26% | ||
Borrowings | ₩ 100,000 | ||||
Long-term borrowings [member] | NongHyup Bank [member] | General loans [member] | |||||
Disclosure of detailed information about borrowings [line items] | |||||
Borrowings | ₩ 54 | ||||
Long-term borrowings [member] | NongHyup Bank [member] | Facility loans [member] | |||||
Disclosure of detailed information about borrowings [line items] | |||||
Annual interest rates | 2.00% | 2.00% | 2.00% | ||
Long-term borrowings [member] | Korea Development Bank [member] | General loans [member] | |||||
Disclosure of detailed information about borrowings [line items] | |||||
Annual interest rates | 3.02% | 3.02% | 3.02% | ||
Borrowings | ₩ 10,000 | 10,000 | |||
Long-term borrowings [member] | Korea Development Bank [member] | General Loans 1 [member] | |||||
Disclosure of detailed information about borrowings [line items] | |||||
Annual interest rates | 3.31% | 3.31% | 3.31% | ||
Long-term borrowings [member] | Other Financial Instruments [member] | Redeemable convertible preferred stock [member] | |||||
Disclosure of detailed information about borrowings [line items] | |||||
Borrowings | ₩ 53,155 | ₩ 101,816 | |||
Long-term borrowings [member] | Other Financial Instruments [member] | Kookmin Bank and other [member] | |||||
Disclosure of detailed information about borrowings [line items] | |||||
Annual interest rates description | LIBOR(3M)+1.850 | ||||
Annual interest rates adjustment rate | 1.85% | 1.85% | 1.85% |
Borrowings - Summary of Long-_2
Borrowings - Summary of Long-term Borrowings (Parenthetical) (Detail) | 12 Months Ended |
Dec. 31, 2020 | |
Inter-Korean Cooperation Fund [member] | |
Disclosure of detailed information about borrowings [line items] | |
Long term debt repayment | The above Inter-Korean Cooperation Fund is repayable in installments over 13 years after a seven-year grace period. |
Vessel facility loans [member] | Shinhan Bank [member] | |
Disclosure of detailed information about borrowings [line items] | |
LIBOR rate | 0.238% |
Vessel facility loans [member] | Kookmin Bank [member] | |
Disclosure of detailed information about borrowings [line items] | |
LIBOR rate | 0.238% |
Borrowings - Summary of Repayme
Borrowings - Summary of Repayment of Borrowings Including the Current Liabilities (Detail) ₩ in Millions | Dec. 31, 2020KRW (₩) | Dec. 31, 2020SGD ($) | Dec. 31, 2020USD ($) | Dec. 31, 2019KRW (₩) |
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | ₩ 7,316,298 | $ 284,000,000 | $ 519,598,989 | ₩ 7,298,867 |
Debentures [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 5,714,340 | 5,972,554 | ||
Long-term borrowings [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 272,263 | 190,780 | ||
Gross carrying amount [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 7,338,522 | |||
Gross carrying amount [member] | Debentures [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 6,962,470 | ₩ 7,045,366 | ||
Gross carrying amount [member] | Debentures [member] | In local currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 4,348,000 | |||
Gross carrying amount [member] | Debentures [member] | In foreign currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 2,622,470 | |||
Gross carrying amount [member] | Long-term borrowings [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 368,052 | |||
Gross carrying amount [member] | Long-term borrowings [member] | In local currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 249,804 | |||
Gross carrying amount [member] | Long-term borrowings [member] | In foreign currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 118,248 | |||
Gross carrying amount [member] | Jan 1, 2020 - Dec 31, 2020 [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 1,418,513 | |||
Gross carrying amount [member] | Jan 1, 2020 - Dec 31, 2020 [member] | Debentures [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 1,228,682 | |||
Gross carrying amount [member] | Jan 1, 2020 - Dec 31, 2020 [member] | Debentures [member] | In local currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 1,060,000 | |||
Gross carrying amount [member] | Jan 1, 2020 - Dec 31, 2020 [member] | Debentures [member] | In foreign currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 168,682 | |||
Gross carrying amount [member] | Jan 1, 2020 - Dec 31, 2020 [member] | Long-term borrowings [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 189,831 | |||
Gross carrying amount [member] | Jan 1, 2020 - Dec 31, 2020 [member] | Long-term borrowings [member] | In local currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 147,307 | |||
Gross carrying amount [member] | Jan 1, 2020 - Dec 31, 2020 [member] | Long-term borrowings [member] | In foreign currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 42,524 | |||
Gross carrying amount [member] | Jan 1, 2021 - Dec 31, 2021 [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 1,346,609 | |||
Gross carrying amount [member] | Jan 1, 2021 - Dec 31, 2021 [member] | Debentures [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 1,307,261 | |||
Gross carrying amount [member] | Jan 1, 2021 - Dec 31, 2021 [member] | Debentures [member] | In local currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 560,000 | |||
Gross carrying amount [member] | Jan 1, 2021 - Dec 31, 2021 [member] | Debentures [member] | In foreign currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 747,261 | |||
Gross carrying amount [member] | Jan 1, 2021 - Dec 31, 2021 [member] | Long-term borrowings [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 39,348 | |||
Gross carrying amount [member] | Jan 1, 2021 - Dec 31, 2021 [member] | Long-term borrowings [member] | In local currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 518 | |||
Gross carrying amount [member] | Jan 1, 2021 - Dec 31, 2021 [member] | Long-term borrowings [member] | In foreign currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 38,830 | |||
Gross carrying amount [member] | Jan 1, 2022 - Dec 31, 2022 [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 1,069,704 | |||
Gross carrying amount [member] | Jan 1, 2022 - Dec 31, 2022 [member] | Debentures [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 932,310 | |||
Gross carrying amount [member] | Jan 1, 2022 - Dec 31, 2022 [member] | Debentures [member] | In local currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 590,000 | |||
Gross carrying amount [member] | Jan 1, 2022 - Dec 31, 2022 [member] | Debentures [member] | In foreign currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 342,310 | |||
Gross carrying amount [member] | Jan 1, 2022 - Dec 31, 2022 [member] | Long-term borrowings [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 137,394 | |||
Gross carrying amount [member] | Jan 1, 2022 - Dec 31, 2022 [member] | Long-term borrowings [member] | In local currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 100,500 | |||
Gross carrying amount [member] | Jan 1, 2022 - Dec 31, 2022 [member] | Long-term borrowings [member] | In foreign currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 36,894 | |||
Gross carrying amount [member] | Jan 1, 2023 - Dec 31, 2023 [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 845,510 | |||
Gross carrying amount [member] | Jan 1, 2023 - Dec 31, 2023 [member] | Debentures [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 845,017 | |||
Gross carrying amount [member] | Jan 1, 2023 - Dec 31, 2023 [member] | Debentures [member] | In local currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 460,000 | |||
Gross carrying amount [member] | Jan 1, 2023 - Dec 31, 2023 [member] | Debentures [member] | In foreign currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 385,017 | |||
Gross carrying amount [member] | Jan 1, 2023 - Dec 31, 2023 [member] | Long-term borrowings [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 493 | |||
Gross carrying amount [member] | Jan 1, 2023 - Dec 31, 2023 [member] | Long-term borrowings [member] | In local currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 493 | |||
Gross carrying amount [member] | After 2024 [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 2,658,186 | |||
Gross carrying amount [member] | After 2024 [member] | Debentures [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 2,657,200 | |||
Gross carrying amount [member] | After 2024 [member] | Debentures [member] | In local currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 1,678,000 | |||
Gross carrying amount [member] | After 2024 [member] | Debentures [member] | In foreign currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 979,200 | |||
Gross carrying amount [member] | After 2024 [member] | Long-term borrowings [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | 986 | |||
Gross carrying amount [member] | After 2024 [member] | Long-term borrowings [member] | In local currency [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Borrowings | ₩ 986 |
Provisions - Summary of Changes
Provisions - Summary of Changes in Provisions (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of other provisions [line items] | ||
Beginning balance | ₩ 254,162 | ₩ 281,876 |
Increase (Transfer) | 33,004 | 66,603 |
Usage | (9,204) | (56,885) |
Reversal | (27,092) | (37,432) |
Change in scope of consolidation | 1,322 | |
Ending balance | 252,192 | 254,162 |
Current | 165,990 | 175,612 |
Non-current | 86,202 | 78,550 |
Litigation [member] | ||
Disclosure of other provisions [line items] | ||
Beginning balance | 64,241 | 58,760 |
Increase (Transfer) | 17,064 | 42,684 |
Usage | (3,948) | (35,640) |
Reversal | (857) | (1,563) |
Ending balance | 76,500 | 64,241 |
Current | 76,500 | 64,241 |
Restoration cost [member] | ||
Disclosure of other provisions [line items] | ||
Beginning balance | 113,289 | 118,828 |
Increase (Transfer) | (1,933) | 6,591 |
Usage | (2,990) | (5,394) |
Reversal | (3,023) | (6,736) |
Change in scope of consolidation | 424 | |
Ending balance | 105,767 | 113,289 |
Current | 22,343 | 37,906 |
Non-current | 83,424 | 75,383 |
Others [member] | ||
Disclosure of other provisions [line items] | ||
Beginning balance | 76,632 | 104,288 |
Increase (Transfer) | 17,873 | 17,328 |
Usage | (2,266) | (15,851) |
Reversal | (23,212) | (29,133) |
Change in scope of consolidation | 898 | |
Ending balance | 69,925 | 76,632 |
Current | 67,147 | 73,465 |
Non-current | ₩ 2,778 | ₩ 3,167 |
Net Defined Benefit Liabiliti_3
Net Defined Benefit Liabilities - Summary of Amount Recognized in the Statements of Financial Position (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Disclosure of net defined benefit liability (asset) [abstract] | ||
Present value of defined benefit obligations | ₩ 2,556,712 | ₩ 2,427,351 |
Fair value of plan assets | (2,189,375) | (2,069,710) |
Liabilities | 378,087 | 365,663 |
Assets in the statement of financial position | ₩ 10,750 | ₩ 8,022 |
Net Defined Benefit Liabiliti_4
Net Defined Benefit Liabilities - Summary of Changes in the Defined Benefit Obligations (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of net defined benefit liability (asset) [Line Items] | |||
Current service cost | ₩ (248,047) | ₩ (243,598) | ₩ (225,667) |
Interest expense | 6,494 | 12,017 | 10,458 |
Present value of defined benefit obligation [member] | |||
Disclosure of net defined benefit liability (asset) [Line Items] | |||
Beginning balance | 2,427,351 | 2,201,876 | |
Current service cost | 248,047 | 243,598 | |
Interest expense | 45,083 | 47,403 | |
Benefit paid | (258,866) | (100,663) | |
Changes due to settlements of plan | 1,075 | 910 | |
Remeasurements: | |||
Actuarial gains and losses arising from changes in demographic assumptions | 5,191 | 39 | |
Actuarial gains and losses arising from changes in financial assumptions | 17,077 | 11,773 | |
Actuarial gains and losses arising from experience adjustments | 57,703 | 19,465 | |
Changes in scope of consolidation | 14,051 | 2,950 | |
Ending balance | ₩ 2,556,712 | ₩ 2,427,351 | ₩ 2,201,876 |
Net Defined Benefit Liabiliti_5
Net Defined Benefit Liabilities - Summary of Changes in the Fair Value of Plan Assets (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of net defined benefit liability (asset) [Line Items] | |||
Interest income | ₩ 6,494 | ₩ 12,017 | ₩ 10,458 |
Plan assets [member] | |||
Disclosure of net defined benefit liability (asset) [Line Items] | |||
Beginning | 2,069,710 | 1,643,046 | |
Interest income | 38,590 | 35,386 | |
Remeasurements: | |||
Return on plan assets (excluding amounts included in interest income) | 2,589 | (2,537) | |
Benefits paid | (213,953) | (87,119) | |
Employer contributions | 284,243 | 476,916 | |
Changes in scope of consolidation | 8,196 | 4,018 | |
Ending | ₩ 2,189,375 | ₩ 2,069,710 | ₩ 1,643,046 |
Net Defined Benefit Liabiliti_6
Net Defined Benefit Liabilities - Summary of Amounts Recognized the Operating Expenses in the Consolidated Statements of Operations (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Changes in net defined benefit liability (asset) [abstract] | |||
Current service cost | ₩ 248,047 | ₩ 243,598 | ₩ 225,667 |
Net Interest cost | 6,494 | 12,017 | 10,458 |
Past service cost | 1,075 | 910 | 9,801 |
Transfer out | (16,514) | (16,215) | (13,881) |
Total expenses | ₩ 239,102 | ₩ 240,310 | ₩ 232,045 |
Net Defined Benefit Liabiliti_7
Net Defined Benefit Liabilities - Summary of Principal Actuarial Assumptions (Detail) | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 |
Disclosure of defined benefit plans [line items] | |||
Discount rate | 1.93% | 1.97% | 2.32% |
Future salary increase | 4.88% | 4.92% | 5.08% |
Net Defined Benefit Liabiliti_8
Net Defined Benefit Liabilities - Summary of Sensitivity of the Defined Benefit Obligations (Detail) ₩ in Millions | Dec. 31, 2020KRW (₩) |
Discount rate [member] | |
Disclosure of sensitivity analysis for actuarial assumptions [Line items] | |
Percentage changes in assumption | 0.50% |
Effect on defined benefit obligation, increase in assumption | ₩ (86,288) |
Effect on defined benefit obligation, decrease in assumption | ₩ 93,254 |
Salary growth rate [member] | |
Disclosure of sensitivity analysis for actuarial assumptions [Line items] | |
Percentage changes in assumption | 0.50% |
Effect on defined benefit obligation, increase in assumption | ₩ 85,344 |
Effect on defined benefit obligation, decrease in assumption | ₩ (79,970) |
Net Defined Benefit Liabiliti_9
Net Defined Benefit Liabilities - Additional Information (Detail) ₩ in Millions | 12 Months Ended |
Dec. 31, 2020KRW (₩) | |
Disclosure of net defined benefit liability (asset) [Line Items] | |
Expected contributions to post-employment benefit plans | ₩ 355,481 |
Weighted average duration of the defined benefit obligations | 6 years 8 months 12 days |
Net Defined Benefit Liabilit_10
Net Defined Benefit Liabilities - Summary of Expected Maturity Analysis of Undiscounted Pension Benefits (Detail) ₩ in Millions | Dec. 31, 2020KRW (₩) |
Disclosure of net defined benefit liability (asset) [Line Items] | |
Pension benefits | ₩ 3,583,273 |
Less than 1 year [member] | |
Disclosure of net defined benefit liability (asset) [Line Items] | |
Pension benefits | 232,550 |
Between 1-2 years [member] | |
Disclosure of net defined benefit liability (asset) [Line Items] | |
Pension benefits | 271,366 |
Between 2-5 years [member] | |
Disclosure of net defined benefit liability (asset) [Line Items] | |
Pension benefits | 794,840 |
More than 5 years [member] | |
Disclosure of net defined benefit liability (asset) [Line Items] | |
Pension benefits | ₩ 2,284,517 |
Defined Contribution Plan - Add
Defined Contribution Plan - Additional Information (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Classes of employee benefits expense [abstract] | |||
Defined Contribution plan recognized expenses | ₩ 61,912 | ₩ 57,170 | ₩ 48,210 |
Commitments and Contingencies -
Commitments and Contingencies - Summary of Major Commitments with Local Financial Institutions (Detail) - Dec. 31, 2020 $ in Thousands, ₩ in Millions | KRW (₩) | USD ($) |
Disclosure of detailed information about borrowings [line items] | ||
Limit | ₩ 2,559,505 | $ 281,054 |
Used amount | 202,577 | 93,471 |
Bank overdraft [member] | Kookmin Bank and others [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Limit | 1,502,000 | |
Used amount | 0 | |
Inter-Korean Cooperation Fund [member] | Export-Import Bank of Korea [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Limit | 37,700 | |
Used amount | 2,714 | |
Insurance for Economic Cooperation project [Member] | Export-Import Bank of Korea [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Limit | 3,240 | |
Used amount | 1,732 | |
Collateralised loans on electronic receivable-trade [member] | Shinhan Bank and others [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Limit | 522,849 | |
Used amount | 23,475 | |
Plus electronic notes payable [member] | Industrial Bank of Korea [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Limit | 50,000 | |
Used amount | 331 | |
Loans for working capital [member] | Korea Development Bank and others [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Limit | 243,593 | |
Used amount | 152,243 | |
Facility loans [member] | Kookmin Bank and others [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Limit | $ | 212,000 | |
Used amount | $ | 48,855 | |
Facility loans [member] | Shinhan Bank and others [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Limit | 100,123 | |
Used amount | 55 | |
Derivatives transaction limit [member] | Korea Development Bank [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Limit | 100,000 | |
Used amount | ₩ 22,027 | |
Derivatives transaction limit [member] | Woori Bank and others [Member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Limit | $ | 69,054 | |
Used amount | $ | $ 44,616 |
Commitments and Contingencies_2
Commitments and Contingencies - Summary of Guarantees Received from Financial Institutions (Detail) - Dec. 31, 2020 $ in Thousands, ₩ in Millions | KRW (₩) | USD ($) |
Disclosure of detailed information about borrowings [line items] | ||
Guarantees limit | ₩ 1,205,141 | $ 72,045 |
Performance guarantee [member] | Seoul Guarantee Insurance and others [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Guarantees limit | 208,386 | |
Performance guarantee [member] | Korea Development Bank and others [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Guarantees limit | $ | 8,569 | |
Performance guarantee [member] | Seoul guarantee insurance [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Guarantees limit | 9,690 | |
Guarantee for import letters of credit [member] | Industrial Bank of Korea and others [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Guarantees limit | $ | 5,000 | |
Guarantee for payment in foreign currency [member] | KEB Hana Bank and others [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Guarantees limit | $ | 40,840 | |
Comprehensive credit line [member] | KEB Hana Bank and others [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Guarantees limit | 41,100 | 8,700 |
Bid guarantee [member] | KEB Hana Bank [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Guarantees limit | $ | 400 | |
Bid guarantee [member] | Korea Software Financial Cooperative and others [Member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Guarantees limit | 80,246 | |
Performance guarantee/Warrant guarantee [member] | Korea Software Financial Cooperative and others [Member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Guarantees limit | 393,019 | |
Guarantee for advance payments/others [member] | Korea Software Financial Cooperative and others [Member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Guarantees limit | 388,656 | |
Guarantees for licensing [member] | Seoul guarantee insurance [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Guarantees limit | 7,748 | |
Warranty guarantee [member] | Seoul guarantee insurance [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Guarantees limit | 1,305 | |
Merchant business guarantee insurance [member] | Seoul guarantee insurance [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Guarantees limit | 237 | |
Guarantee for payment in won currency [Member] | Shinhan Bank and others [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Guarantees limit | 70,962 | |
Refund guarantee for advances received [Member] | Korea Development Bank [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Guarantees limit | $ | $ 8,536 | |
Guarantees for depositions [Member] | Seoul guarantee insurance [member] | ||
Disclosure of detailed information about borrowings [line items] | ||
Guarantees limit | ₩ 3,792 |
Commitments and Contingencies_3
Commitments and Contingencies - Summary of Guarantees Provided by the Group for Third Parties (Detail) ₩ in Millions | 12 Months Ended | |||
Dec. 31, 2020KRW (₩) | Dec. 31, 2020SGD ($) | Dec. 31, 2020USD ($) | Dec. 31, 2019KRW (₩) | |
Disclosure of detailed information about borrowings [line items] | ||||
Used amount | ₩ 7,316,298 | $ 284,000,000 | $ 519,598,989 | ₩ 7,298,867 |
Maturity | Jun. 5, 2025 | |||
KT Engineering Co Ltd KT ENGCORE Co Ltd [Member] | Shinhan Bank [member] | Guarantees [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Subject to payment guarantees | Gasan Solar Power Plant Inc. | |||
Limit | ₩ 4,700 | |||
Used amount | ₩ 1,371 | |||
Maturity | Jan. 08, 2025 | |||
KT Engineering Co Ltd KT ENGCORE Co Ltd [Member] | Suhyup Bank [Member] | Guarantees [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Subject to payment guarantees | SPP Inc. | |||
Limit | ₩ 3,250 | |||
Used amount | ₩ 932 | |||
Maturity | Feb. 16, 2024 | |||
KT Engineering Co Ltd KT ENGCORE Co Ltd [Member] | Suhyup Bank One [Member] | Guarantees [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Subject to payment guarantees | Korea Cell Inc. | |||
Limit | ₩ 3,250 | |||
Used amount | ₩ 880 | |||
Maturity | Feb. 16, 2024 | |||
KT Engineering Co Ltd KT ENGCORE Co Ltd [Member] | Suhyup Bank Two [Member] | Guarantees [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Subject to payment guarantees | San-Ya Agricultural Association Corporation | |||
Limit | ₩ 3,250 | |||
Used amount | ₩ 888 | |||
Maturity | Feb. 16, 2024 | |||
KT Engineering Co Ltd KT ENGCORE Co Ltd [Member] | NH Investment Securities CoLtd [Member] | Guarantees [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Subject to payment guarantees | Ciocanesti Korea Co., Ltd. | |||
Limit | ₩ 7,600 | |||
Used amount | ₩ 7,600 | |||
Maturity | Jun. 8, 2017 | |||
KT Hitel Co., Ltd. [member] | Cash payers [member] | Guarantees [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Subject to payment guarantees | Shinhan Bank | |||
Limit | ₩ 700 | |||
Nasmedia Co Ltd [member] | Korea Securities Finance Corp [Member] | Guarantees [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Subject to payment guarantees | Stockholders Association Members | |||
Limit | ₩ 5,654 | |||
Used amount | ₩ 2,735 | |||
Bottom of range [member] | KT Hitel Co., Ltd. [member] | Cash payers [member] | Guarantees [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Maturity | Apr. 17, 2020 | |||
Top of range [member] | KT Hitel Co., Ltd. [member] | Cash payers [member] | Guarantees [member] | ||||
Disclosure of detailed information about borrowings [line items] | ||||
Maturity | Apr. 16, 2021 |
Commitments and Contingencies_4
Commitments and Contingencies - Additional Information (Detail) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020KRW (₩)Lawsuits | Dec. 31, 2019KRW (₩) | |
Commitments and contingencies [abstract] | ||
Severally liable for reimbursement | ₩ 1,618 | |
Number of lawsuits | Lawsuits | 195 | |
Litigation settlement claim amount | ₩ 110,409 | ₩ 214,877 |
Litigation provision | ₩ 76,500 | 62,241 |
New town development consortium percentage of ownership interest | 2.50% | |
Contract amount not yet recognized as liabilities | ₩ 596,983 | ₩ 851,798 |
Leases - Summary of balance she
Leases - Summary of balance sheet information about leases for lessee (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 |
Disclosure of balance sheet information about leases for lessee [Line Items] | |||
Right-of-use assets | ₩ 1,217,179 | ₩ 1,268,329 | |
Investment property | 1,368,453 | 1,387,430 | ₩ 1,091,084 |
Lease liabilities | |||
Current | 392,433 | ||
Non-Current | 818,919 | ||
Lease liability recognized | 1,143,640 | 1,211,352 | |
Previously stated [member] | |||
Disclosure of balance sheet information about leases for lessee [Line Items] | |||
Right-of-use assets | 585,034 | 788,497 | |
Investment property | 19,456 | ||
Lease liabilities | |||
Current | 281,961 | 355,833 | |
Non-Current | 798,416 | 373,307 | |
Lease liability recognized | 1,143,640 | ||
Property and building [member] | |||
Disclosure of balance sheet information about leases for lessee [Line Items] | |||
Right-of-use assets | 1,020,619 | ||
Property and building [member] | Previously stated [member] | |||
Disclosure of balance sheet information about leases for lessee [Line Items] | |||
Right-of-use assets | 1,073,207 | ||
Machinery and track facilities [member] | |||
Disclosure of balance sheet information about leases for lessee [Line Items] | |||
Right-of-use assets | 140,296 | ||
Machinery and track facilities [member] | Previously stated [member] | |||
Disclosure of balance sheet information about leases for lessee [Line Items] | |||
Right-of-use assets | 42,127 | ||
Other [member] | |||
Disclosure of balance sheet information about leases for lessee [Line Items] | |||
Right-of-use assets | ₩ 107,414 | ||
Other [member] | Previously stated [member] | |||
Disclosure of balance sheet information about leases for lessee [Line Items] | |||
Right-of-use assets | ₩ 101,845 |
Leases - Summary of statement o
Leases - Summary of statement of profit or loss information about leases for lessee (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of statement of profit or loss information about leases for lessee [Line Items] | ||
Depreciation of Right-of-use assets | ₩ 404,175 | ₩ 442,629 |
Depreciation of Investment Properties | 19,113 | 21,809 |
Interest expense relating to lease liabilities | 44,091 | 55,001 |
Expense relating to short-term leases | 10,998 | 14,718 |
Expense relating to leases of low-value assets that are not short-term leases | 25,894 | 26,575 |
Expense relating to variable lease payments not included in lease liabilities | 8,096 | 5,993 |
Property and building [member] | ||
Disclosure of statement of profit or loss information about leases for lessee [Line Items] | ||
Depreciation of Right-of-use assets | 290,168 | 300,773 |
Machinery and track facilities [member] | ||
Disclosure of statement of profit or loss information about leases for lessee [Line Items] | ||
Depreciation of Right-of-use assets | 58,419 | 89,452 |
Other [member] | ||
Disclosure of statement of profit or loss information about leases for lessee [Line Items] | ||
Depreciation of Right-of-use assets | ₩ 55,588 | ₩ 52,402 |
Leases - Additional Information
Leases - Additional Information (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure Of Arrangement Involving Legal Form Of Lease [Abstract] | ||
Cash outflow for leases | ₩ 492,772 | ₩ 532,730 |
Increase decrease in right of use assets | ₩ 404,293 |
Share Capital - Summary of Shar
Share Capital - Summary of Share Capital (Detail) - KRW (₩) ₩ / shares in Units, ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Disclosure of classes of share capital [Line Items] | ||
Ordinary Shares | ₩ 1,564,499 | ₩ 1,564,499 |
Ordinary shares [member] | ||
Disclosure of classes of share capital [Line Items] | ||
Number of issued shares | 261,111,808 | 261,111,808 |
Par value per share | ₩ 5,000 | ₩ 5,000 |
Ordinary Shares | ₩ 1,564,499 | ₩ 1,564,499 |
Share Capital - Summary of Sh_2
Share Capital - Summary of Share Capital (Parenthetical) (Detail) - shares | Dec. 31, 2020 | Dec. 31, 2019 |
Disclosure of classes of share capital [abstract] | ||
Treasury shares | 51,787,959 | 51,787,959 |
Retained Earnings - Summary of
Retained Earnings - Summary of Retained Earnings (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Miscellaneous equity [abstract] | ||
Legal reserve | ₩ 782,249 | ₩ 782,249 |
Voluntary reserves | 4,651,362 | 4,651,362 |
Unappropriated retained earnings | 6,721,809 | 6,157,305 |
Total | ₩ 12,155,420 | ₩ 11,590,916 |
Retained Earnings - Summary o_2
Retained Earnings - Summary of Retained Earnings (Parenthetical) (Detail) | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Miscellaneous equity [abstract] | ||
Minimum percentage of cash dividend declared appropriation to legal reserve | 10.00% | 10.00% |
Percentage of legal reserve equal to capital stock issued | 50.00% | 50.00% |
Accumulated Other Comprehensi_3
Accumulated Other Comprehensive Income and Other Components of Equity - Summary of Accumulated Other Comprehensive Income (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 |
Total accumulated other comprehensive income | ₩ 86,051 | ₩ 194,934 | ₩ 50,158 |
Changes in investments in associates and joint ventures [member] | |||
Total accumulated other comprehensive income | 16,257 | 1,556 | (871) |
Loss on derivatives valuation [member] | |||
Total accumulated other comprehensive income | 19,809 | (7,624) | |
Gain on valuation of financial assets at fair value through other comprehensive income [member] | |||
Total accumulated other comprehensive income | 61,438 | 211,573 | 96,704 |
Exchange differences on translation for foreign operations [member] | |||
Total accumulated other comprehensive income | ₩ (11,453) | ₩ (10,571) | ₩ (15,201) |
Accumulated Other Comprehensi_4
Accumulated Other Comprehensive Income and Other Components of Equity - Summary of Changes in Accumulated Other Comprehensive Income (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Beginning | ₩ 194,934 | ₩ 50,158 |
Increase /decrease | (220,314) | 189,460 |
Reclassified to gain or loss | 111,431 | (44,684) |
Ending | 86,051 | 194,934 |
Changes in investments in associates and joint ventures [member] | ||
Beginning | 1,556 | (871) |
Increase /decrease | 14,701 | 2,427 |
Ending | 16,257 | 1,556 |
Gain or Loss on derivatives valuation [member] | ||
Beginning | (7,624) | (30,474) |
Increase /decrease | (83,998) | 67,534 |
Reclassified to gain or loss | 111,431 | (44,684) |
Ending | 19,809 | (7,624) |
Gain on valuation of financial assets at fair value through other comprehensive income [member] | ||
Beginning | 211,573 | 96,704 |
Increase /decrease | (150,135) | 114,869 |
Ending | 61,438 | 211,573 |
Exchange differences on translation for foreign operations [member] | ||
Beginning | (10,571) | (15,201) |
Increase /decrease | (882) | 4,630 |
Ending | ₩ (11,453) | ₩ (10,571) |
Accumulated Other Comprehensi_5
Accumulated Other Comprehensive Income and Other Components of Equity - Summary of Other Components of Equity (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Miscellaneous equity [abstract] | ||
Treasury stock | ₩ (882,224) | ₩ (825,838) |
Gain or loss on disposal of treasury stock | (17,579) | 1,229 |
Share-based payments | 5,901 | 7,769 |
Others | (340,882) | (353,243) |
Total | ₩ (1,234,784) | ₩ (1,170,083) |
Accumulated Other Comprehensi_6
Accumulated Other Comprehensive Income and Other Components of Equity - Summary of Other Components of Equity (Parenthetical) (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Miscellaneous equity [abstract] | ||
Number Of treasury shares reissued | 1,150,580 | |
Number of treasury shares acquired | 4,550,000 | |
Treasury shares, Amount directly reflected in equity | ₩ 7,288 | ₩ 603 |
Accumulated Other Comprehensi_7
Accumulated Other Comprehensive Income and Other Components of Equity - Summary of Treasury Stock (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Miscellaneous equity [abstract] | ||
Number of shares (in shares) | 19,269,678 | 15,870,258 |
Amounts (In millions of Korean won) | ₩ 882,224 | ₩ 825,838 |
Share-based Payments - Summary
Share-based Payments - Summary of Details of Share-based Payments (Detail) | 12 Months Ended |
Dec. 31, 2020KRW (₩) | |
Disclosure of terms and conditions of share-based payment arrangement [line items] | |
Grant date | 14th grant June 16, 2020 |
Vesting conditions | Service condition: 1 year Non-market performance condition: achievement of performance |
Fair value per option | ₩ 22,700 |
Total compensation costs | ₩ 5,187,000,000 |
Employee wage negotiation [Member] | |
Disclosure of terms and conditions of share-based payment arrangement [line items] | |
Grant date | Employee wage negotiation September 21, 2020 |
Vesting conditions | All employees Current employees as of September 21, 2020 |
Fair value per option | ₩ 22,950 |
Total compensation costs | ₩ 23,317,000,000 |
Share-based Payments - Summar_2
Share-based Payments - Summary of Changes in the Number of Stock Options and the Weighted-Average Exercise Price (Detail) | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||
Beginning | 372,023 | 353,325 |
Granted | 1,418,961 | 372,023 |
Expired | 241,548 | 256,543 |
Exercised | 1,150,580 | 96,782 |
Ending | 398,856 | 372,023 |
12th grant [member] | ||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||
Beginning | 353,325 | |
Expired | 256,543 | |
Exercised | 96,782 | |
13th grant [member] | ||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||
Beginning | 372,023 | |
Granted | 372,023 | |
Expired | 241,548 | |
Exercised | 130,475 | |
Ending | 372,023 | |
14Th grant [Member] | ||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||
Granted | 398,856 | |
Ending | 398,856 | |
Employee wage negotiation [Member] | ||
Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||
Granted | 1,020,105 | |
Exercised | 1,020,105 |
Share-based Payments - Summar_3
Share-based Payments - Summary of Changes in the Number of Stock Options and the Weighted-Average Exercise Price (Parenthetical) (Detail) - ₩ / shares | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of terms and conditions of share-based payment arrangement [abstract] | ||
Weighted average exercise price of share options exercised | ₩ 25,486 | ₩ 27,482 |
Revenue from Contracts with C_3
Revenue from Contracts with Customers and Relevant Contract Assets and Liabilities - Detail Explanation of Revenue in the Consolidated Statement of operations (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of disaggregation of revenue from contracts with customers [abstract] | |||
Revenue from contracts with customers | ₩ 23,895,631 | ₩ 24,441,122 | ₩ 23,012,257 |
Revenue from other sources | 545,016 | 458,067 | 423,793 |
Operating revenue | ₩ 24,440,647 | ₩ 24,899,189 | ₩ 23,436,050 |
Revenue from Contracts with C_4
Revenue from Contracts with Customers and Relevant Contract Assets and Liabilities - Detail explanation of Operating revenue (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of disaggregation of revenue from contracts with customers [abstract] | |||
Mobile services | ₩ 6,805,218 | ₩ 6,795,124 | ₩ 6,827,685 |
Fixed-line services: | 4,827,015 | 4,866,698 | 4,869,253 |
Fixed-line and VoIP telephone services | 1,463,553 | 1,578,546 | 1,708,319 |
Broadband Internet access services | 2,256,188 | 2,177,447 | 2,112,763 |
Data communication services | 1,107,274 | 1,110,705 | 1,048,171 |
Media and content | 2,637,691 | 2,516,256 | 2,261,808 |
Financial services | 3,493,920 | 3,641,655 | 3,444,917 |
Sale of goods | 3,593,127 | 4,194,168 | 3,288,911 |
Others | 3,083,676 | 2,885,288 | 2,743,476 |
Operating revenue | ₩ 24,440,647 | ₩ 24,899,189 | ₩ 23,436,050 |
Revenue from Contracts with C_5
Revenue from Contracts with Customers and Relevant Contract Assets and Liabilities - Detail Analysis of Contract with Customer Assets and Liabilities (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of revenue from contracts with customers [line items] | |||
Contract assets | [1] | ₩ 586,438 | ₩ 557,041 |
Contract liabilities | [1] | 384,133 | 365,610 |
Deferred revenue | 29,593 | 65,228 | |
Revenue from contracts with customers [member] | |||
Disclosure of revenue from contracts with customers [line items] | |||
Contract assets | 672,672 | 655,329 | |
Contract liabilities | 413,707 | 413,442 | |
Deferred revenue | ₩ 89,694 | ₩ 92,557 | |
[1] | The amounts include adjustments arising from adoption of IFRS 15 (Note 26). |
Revenue from Contracts with C_6
Revenue from Contracts with Customers and Relevant Contract Assets and Liabilities - Detail Analysis of Contract with Customer Assets and Liabilities (Parenthetical) (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of revenue from contracts with customers [line items] | |||
Contract assets | [1] | ₩ 586,438 | ₩ 557,041 |
Contract liabilities | [1] | 384,133 | 365,610 |
long term construction contract [Member] | |||
Disclosure of revenue from contracts with customers [line items] | |||
Contract assets | 86,234 | 98,288 | |
Contract liabilities | ₩ 29,574 | ₩ 47,832 | |
[1] | The amounts include adjustments arising from adoption of IFRS 15 (Note 26). |
Revenue from Contracts with C_7
Revenue from Contracts with Customers and Relevant Contract Assets and Liabilities - Detail Analysis of Contract Costs Recognized as Assets (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Incremental cost of contract establishment [Member] | ||
Statement [Line Items] | ||
Incremental cost of contract establishment | ₩ 1,726,191 | ₩ 1,764,009 |
Cost of Contract performance [Member] | ||
Statement [Line Items] | ||
Incremental cost of contract establishment | ₩ 78,757 | ₩ 85,234 |
Revenue from Contracts with C_8
Revenue from Contracts with Customers and Relevant Contract Assets and Liabilities - Additional Information (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of disaggregation of revenue from contracts with customers [abstract] | ||
Operating expenses | ₩ 1,831,638 | ₩ 1,681,039 |
Revenue from Contracts with C_9
Revenue from Contracts with Customers and Relevant Contract Assets and Liabilities - Detail of Revenue Arising from Carried-Forward Contract Liabilities (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of disaggregation of revenue from contracts with customers [abstract] | |||
Allocation of the transaction price | ₩ 251,975 | ₩ 266,478 | ₩ 183,905 |
Deferred revenue of joining/installment fee | 42,685 | 44,032 | 39,975 |
Others | 1,536 | ||
Total | ₩ 294,660 | ₩ 310,510 | ₩ 225,416 |
Operating Expenses - Summary of
Operating Expenses - Summary of Operating Expenses (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Profit (loss) [abstract] | |||
Salaries and wages | ₩ 4,123,680 | ₩ 3,974,233 | ₩ 3,845,842 |
Depreciation | 2,605,128 | 2,530,252 | 2,674,205 |
Depreciation of right-of-use assets | 404,175 | 442,629 | |
Amortization of intangible assets | 624,982 | 656,611 | 607,527 |
Commissions | 965,461 | 1,115,477 | 1,080,168 |
Interconnection charges | 500,081 | 534,025 | 579,613 |
International interconnection fee | 172,529 | 240,254 | 226,627 |
Purchase of inventories | 3,681,801 | 4,453,820 | 4,414,094 |
Changes of inventories | 257,041 | 282,957 | (432,607) |
Sales commission | 2,337,127 | 2,315,731 | 1,942,841 |
Service cost | 2,102,875 | 1,610,261 | 1,540,869 |
Utilities | 360,797 | 332,816 | 323,411 |
Taxes and dues | 283,197 | 277,742 | 285,131 |
Rent | 136,355 | 193,357 | 460,377 |
Insurance premium | 71,018 | 82,404 | 73,654 |
Installation fee | 132,117 | 155,178 | 143,669 |
Advertising expenses | 132,466 | 150,166 | 157,675 |
Research and development expenses | 156,940 | 165,028 | 176,758 |
Card service cost | 2,941,669 | 3,066,766 | 3,112,618 |
Others | 1,428,875 | 1,292,512 | 1,122,718 |
Total | ₩ 23,418,314 | ₩ 23,872,219 | ₩ 22,335,190 |
Operating Expenses - Summary _2
Operating Expenses - Summary of Details of Employee Benefits (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Profit (loss) [abstract] | |||
Short-term employee benefits | ₩ 3,770,786 | ₩ 3,663,337 | ₩ 3,505,214 |
Post-employment benefits (Defined benefit plan) | 239,102 | 240,310 | 232,045 |
Post-employment benefits (Defined contribution plan) | 61,912 | 57,170 | 48,210 |
Share-based payment | 28,604 | 6,398 | 8,439 |
Others | 23,276 | 7,018 | 51,934 |
Total | ₩ 4,123,680 | ₩ 3,974,233 | ₩ 3,845,842 |
Financial Income and Costs - Su
Financial Income and Costs - Summary of Details of Financial Income (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Profit (loss) [abstract] | |||
Interest income | ₩ 270,571 | ₩ 282,704 | ₩ 244,796 |
Gain on foreign currency transactions | 17,493 | 24,596 | 17,175 |
Gain on foreign currency translation | 164,351 | 17,979 | 3,691 |
Gain on settlement of derivatives | 9,397 | 9,016 | 27,950 |
Gain on valuation of derivatives | 172 | 77,353 | 66,305 |
Others | 36,630 | 12,747 | 14,326 |
Total | ₩ 498,614 | ₩ 424,395 | ₩ 374,243 |
Financial Income and Costs - _2
Financial Income and Costs - Summary of Details of Financial Expense (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure Of Finance Income [line items] | |||
Interest expenses | ₩ 263,579 | ₩ 278,427 | ₩ 296,874 |
Loss on foreign currency transactions | 27,805 | 30,267 | 49,156 |
Loss on foreign currency translation | 26,340 | 93,977 | 72,642 |
Loss on settlement of derivatives | 1,406 | 20 | |
Loss on valuation of derivatives | 163,763 | 15,867 | 2,045 |
Others | 16,338 | 2,277 | 1,124 |
Total | 507,383 | 432,133 | 435,659 |
Loans and receivables [member] | |||
Disclosure Of Finance Income [line items] | |||
Loss on disposal of trade receivables | ₩ 8,152 | ₩ 11,298 | ₩ 13,818 |
Deferred Income Tax and Incom_3
Deferred Income Tax and Income Tax Expense - Summary of Analysis of Deferred Tax Assets and Deferred Tax Liabilities (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
Deferred income tax assets | ₩ 433,698 | ₩ 424,856 |
Deferred income tax liabilities | (429,331) | (425,468) |
Gross carrying amount [member] | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
Deferred income tax assets | 2,036,193 | 2,033,725 |
Deferred income tax liabilities | (2,031,826) | (2,034,337) |
Gross carrying amount [member] | Less than 1 year [member] | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
Deferred income tax assets | 404,434 | 419,889 |
Deferred income tax liabilities | (637,317) | (538,578) |
Gross carrying amount [member] | Over 12 months [member] | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
Deferred income tax assets | 1,631,759 | 1,613,836 |
Deferred income tax liabilities | ₩ (1,394,509) | ₩ (1,495,759) |
Deferred Income Tax and Incom_4
Deferred Income Tax and Income Tax Expense - Summary of Gross Movements on the Deferred Income Tax Account (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Deferred tax assets and liabilities [abstract] | |||
Beginning | ₩ (612) | ₩ 260,584 | |
Changes to the statement of operations | (72,124) | (199,527) | ₩ 15,016 |
Changes to other comprehensive loss (income) | 77,103 | (61,669) | 36,115 |
Ending | ₩ 4,367 | ₩ (612) | ₩ 260,584 |
Deferred Income Tax and Incom_5
Deferred Income Tax and Income Tax Expense - Summary of Movement in Deferred Income Tax Assets and Liabilities (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | ₩ (612) | ₩ 260,584 | |
Consolidated statements of operations | (72,124) | (199,527) | ₩ 15,016 |
Other comprehensive income | 77,103 | (61,669) | |
Ending | 4,367 | (612) | 260,584 |
Deferred tax liabilities derivative assets [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | (10,898) | ||
Consolidated statements of operations | 10,055 | (10,250) | |
Other comprehensive income | (648) | ||
Ending | (843) | (10,898) | |
Deferred tax liabilities investment in subsidiaries associates and joint ventures [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | (108,191) | (93,604) | |
Consolidated statements of operations | (64,553) | (14,622) | |
Other comprehensive income | (8,820) | 35 | |
Ending | (181,564) | (108,191) | (93,604) |
Deferred tax liabilities depreciation [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | (11,606) | (424) | |
Consolidated statements of operations | 7,431 | (11,182) | |
Ending | (4,175) | (11,606) | (424) |
Deferred tax liabilities advanced depreciation provision [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | (313,121) | (313,184) | |
Consolidated statements of operations | 1,203 | 63 | |
Ending | (311,918) | (313,121) | (313,184) |
Deferred tax liabilities deposits for severance benefits [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | (496,853) | (398,982) | |
Consolidated statements of operations | (26,419) | (99,126) | |
Other comprehensive income | 2,015 | 1,255 | |
Ending | (521,257) | (496,853) | (398,982) |
Deferred tax liabilities accrued income [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | (1,541) | (1,558) | |
Consolidated statements of operations | (212) | 17 | |
Ending | (1,753) | (1,541) | (1,558) |
Deferred tax liabilities reserve for technology and human resource development [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | (204) | (204) | |
Ending | (204) | (204) | (204) |
Other deferred tax liabilities [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | (523,150) | (284,255) | |
Consolidated statements of operations | 53,797 | (238,725) | |
Other comprehensive income | 0 | (170) | |
Ending | (469,353) | (523,150) | (284,255) |
Deferred tax derivative assets [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | 8,341 | ||
Consolidated statements of operations | (850) | ||
Other comprehensive income | (7,491) | ||
Ending | 8,341 | ||
Deferred tax assets provision for impairment or trade receivables [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | 84,071 | 99,887 | |
Consolidated statements of operations | 4,994 | (15,816) | |
Ending | 89,065 | 84,071 | 99,887 |
Deferred tax assets inventory valuation [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | 23 | 121 | |
Consolidated statements of operations | (259) | (98) | |
Ending | (236) | 23 | 121 |
Deferred tax assets contribution for construction [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | 16,154 | 16,800 | |
Consolidated statements of operations | 246 | (646) | |
Ending | 16,400 | 16,154 | 16,800 |
Deferred Tax Assets Provisions [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | 32,824 | 36,178 | |
Consolidated statements of operations | 1,198 | (3,354) | |
Ending | 34,022 | 32,824 | 36,178 |
Deferred tax assets property, plant and equipment [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | 228,655 | 230,278 | |
Consolidated statements of operations | (1,695) | (1,623) | |
Ending | 226,960 | 228,655 | 230,278 |
Deferred Tax assets assets retirement obligation [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | 29,016 | 24,532 | |
Consolidated statements of operations | (883) | 4,484 | |
Ending | 28,133 | 29,016 | 24,532 |
Deferred tax assets withholding of facilities expenses [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | 6,183 | 6,609 | |
Consolidated statements of operations | (436) | (426) | |
Ending | 5,747 | 6,183 | 6,609 |
Deferred tax assets deduction of installment receivables [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | 48 | 42 | |
Consolidated statements of operations | (20) | 6 | |
Ending | 28 | 48 | 42 |
Deferred tax assets gain or loss foreign currency translation [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | 20,677 | 10,672 | |
Consolidated statements of operations | (20,539) | 10,005 | |
Ending | 138 | 20,677 | 10,672 |
Deferred tax assets deferred revenue [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | 35,800 | 39,641 | |
Consolidated statements of operations | 7,230 | (3,841) | |
Ending | 43,030 | 35,800 | 39,641 |
Deferred tax assets real-estate sales [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | 13,685 | 21,728 | |
Consolidated statements of operations | (13,685) | (8,043) | |
Ending | 13,685 | 21,728 | |
Other deferred tax assets [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | 708,437 | 537,209 | |
Consolidated statements of operations | (123,798) | 174,177 | |
Other comprehensive income | 948 | (2,949) | |
Ending | 585,587 | 708,437 | 537,209 |
Deferred tax assets [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | 1,905,480 | 1,673,777 | |
Consolidated statements of operations | (20,492) | 235,361 | |
Other comprehensive income | 6,274 | (3,658) | |
Ending | 1,891,262 | 1,905,480 | 1,673,777 |
Deferred tax assets defined benefit liabilities [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | 569,471 | 513,842 | |
Consolidated statements of operations | 13,707 | 48,847 | |
Other comprehensive income | 15,186 | 6,782 | |
Ending | 598,364 | 569,471 | 513,842 |
Deferred tax assets tax credit carry forwards [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | 128,245 | 102,898 | |
Consolidated statements of operations | 16,686 | 25,347 | |
Ending | 144,931 | 128,245 | 102,898 |
Deferred tax liabilities contract assets [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | (53,750) | (11,505) | |
Consolidated statements of operations | (112,794) | (42,245) | |
Ending | (166,544) | (53,750) | (11,505) |
Deferred tax liabilities financial assets at fair value through profit or loss [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | (323) | (661) | |
Consolidated statements of operations | (304) | 338 | |
Ending | (627) | (323) | (661) |
Deferred tax liabilities Financial assets at fair value through other comprehensive income [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | (103,837) | (41,798) | |
Consolidated statements of operations | (4,420) | (3,556) | |
Other comprehensive income | 77,634 | (58,483) | |
Ending | (30,623) | (103,837) | (41,798) |
Deferred tax assets unsettled expenses [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | 160,436 | 127,897 | |
Consolidated statements of operations | (24,358) | 32,539 | |
Ending | 136,078 | 160,436 | 127,897 |
Temporary differences [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | (128,857) | 157,686 | |
Consolidated statements of operations | (88,810) | (224,874) | |
Other comprehensive income | 77,103 | (61,669) | |
Ending | (140,564) | (128,857) | 157,686 |
Deferred tax liabilities [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | (2,034,337) | (1,516,091) | |
Consolidated statements of operations | (68,318) | (460,235) | |
Other comprehensive income | 70,829 | (58,011) | |
Ending | (2,031,826) | (2,034,337) | (1,516,091) |
Deferred Tax Liabilities Contract Cost [Member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Beginning | (410,863) | (369,916) | |
Consolidated statements of operations | 67,898 | (40,947) | |
Ending | (342,965) | ₩ (410,863) | ₩ (369,916) |
Deferred Tax Assets Derivative instrument [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Consolidated statements of operations | 40,342 | ||
Other comprehensive income | (9,860) | ||
Ending | 30,482 | ||
Deferred Tax Assets Contract Assets [member] | |||
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | |||
Consolidated statements of operations | 97,464 | ||
Ending | ₩ 97,464 |
Deferred Income Tax and Incom_6
Deferred Income Tax and Income Tax Expense - Summary of Tax Impacts Recognized Directly To Equity (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Deferred tax assets and liabilities [abstract] | |||
Gain on valuation of financial assets at fair value through other comprehensive income, Before recognition | ₩ 54,969 | ₩ 225,635 | ₩ 59,384 |
Gain (loss) on valuation of hedge instruments (loss)liabilities, Before recognition | 37,247 | 31,003 | (36,756) |
Remeasurements of net defined benefit liabilities, Before recognition | (77,382) | (33,814) | (116,324) |
Share of Gain (loss) of associates and joint ventures, and others, Before recognition | 25,538 | 4,493 | (1,036) |
Exchange differences on translation for foreign operations, Before recognition | (3,614) | 6,692 | 3,989 |
Total, Before recognition | 36,758 | 234,009 | (90,743) |
Gain on valuation of financial assets at fair value through other comprehensive income, Tax effect | (12,972) | (58,483) | (15,573) |
Gain (loss) on valuation of hedge instruments (loss)liabilities, Tax effect | (9,860) | (8,139) | 9,745 |
Remeasurements of net defined benefit liabilities, Tax effect | 17,201 | 8,037 | 42,813 |
Share of Gain (loss) of associates and joint ventures, and others, Tax effect | (8,820) | (1,327) | 179 |
Exchange differences on translation for foreign operations, Tax effect | 948 | (1,759) | (1,049) |
Total, Tax effect | 77,103 | (61,669) | 36,115 |
Gain on valuation of financial assets at fair value through other comprehensive income, After recognition | 41,997 | 167,152 | 43,811 |
Gain (loss) on valuation of hedge instruments (loss)liabilities, After recognition | 27,387 | 22,864 | (27,011) |
Remeasurements of net defined benefit liabilities, After recognition | (60,181) | (25,777) | (73,511) |
Share of Gain (loss) of associates and joint ventures, and others, After recognition | 16,718 | 3,166 | (857) |
Exchange differences on translation for foreign operations, After recognition | (2,666) | 4,933 | 2,940 |
Total other comprehensive income (loss) | ₩ 23,255 | ₩ 172,338 | ₩ (54,628) |
Deferred Income Tax and Incom_7
Deferred Income Tax and Income Tax Expense - Summary of Details of Income Tax Expense (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Deferred tax assets and liabilities [abstract] | |||
Current income tax expense | ₩ 213,225 | ₩ 120,533 | ₩ 329,581 |
Impact of change in deferred taxes | 72,124 | 199,527 | (15,016) |
Income tax expense | ₩ 285,349 | ₩ 320,060 | ₩ 314,565 |
Deferred Income Tax and Incom_8
Deferred Income Tax and Income Tax Expense - Summary of Tax on the Group's Profit Before Tax (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Deferred tax assets and liabilities [abstract] | |||
Profit before income tax expense | ₩ 1,031,605 | ₩ 1,015,928 | ₩ 1,033,977 |
Statutory income tax expense | 273,329 | 269,018 | 273,982 |
Tax effect | |||
Income not taxable for taxation purposes | (24,657) | (1,265) | (85,322) |
Non-deductible expenses | 31,741 | 19,543 | 18,126 |
Tax credit | (47,056) | (39,190) | (20,319) |
Additional payment of income taxes | 429 | 3,832 | 11,439 |
Tax effect and adjustment on consolidation | |||
Goodwill impairment | 159 | 137 | |
Eliminated dividend income form subsidiaries | 20,682 | 21,917 | 31,966 |
Changes of out-side tax effect | 38,552 | 13,539 | 618 |
Tax effect of investment in kind | 82,820 | ||
Intangible Asset impairment and amortization | 3,790 | 14,052 | |
Reversal expenses of contract cost assets | (6,643) | 11,213 | |
Others | (4,818) | 7,242 | 1,118 |
Income tax expense | ₩ 285,349 | ₩ 320,060 | ₩ 314,565 |
Deferred Income Tax and Incom_9
Deferred Income Tax and Income Tax Expense - Summary of expected period of expiry for unused tax losses not recognized in deferred tax assets (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||
Unused tax losses for which no deferred tax asset recognised | ₩ 127,793 | ₩ 142,075 |
2021 | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||
Unused tax losses for which no deferred tax asset recognised | 2,140 | 18,582 |
2022 | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||
Unused tax losses for which no deferred tax asset recognised | 80,649 | 2,140 |
2023 | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||
Unused tax losses for which no deferred tax asset recognised | 5,848 | 80,649 |
2024 | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||
Unused tax losses for which no deferred tax asset recognised | 4,867 | 5,848 |
2025 | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||
Unused tax losses for which no deferred tax asset recognised | 2,847 | 4,867 |
2026 | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||
Unused tax losses for which no deferred tax asset recognised | 9,709 | 9,390 |
2027 | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||
Unused tax losses for which no deferred tax asset recognised | 8,389 | 7,888 |
2028 | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||
Unused tax losses for which no deferred tax asset recognised | 8,426 | 10,064 |
2029 | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||
Unused tax losses for which no deferred tax asset recognised | 2,579 | 2,030 |
2030 | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||
Unused tax losses for which no deferred tax asset recognised | ₩ 2,339 | ₩ 617 |
Deferred Income Tax and Inco_10
Deferred Income Tax and Income Tax Expense - Summary of deferred tax assets and liabilities that are not recognized (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||
Deductible Temporary Differences For Which No Deferred Tax Asset and Liabiities Is Recognised | ₩ 679,419 | ₩ 674,102 |
Taxable Temporary Differences For Which No Deferred Tax Asset and Liabilities Is Recognised | 142,416 | 152,036 |
Investment in subsidiaries, associates, and joint ventures | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||
Deductible Temporary Differences For Which No Deferred Tax Asset and Liabiities Is Recognised | 583,890 | 610,351 |
Taxable Temporary Differences For Which No Deferred Tax Asset and Liabilities Is Recognised | 132,848 | 141,664 |
Unused tax loss | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||
Deductible Temporary Differences For Which No Deferred Tax Asset and Liabiities Is Recognised | 28,115 | 31,257 |
Unused Tax credit | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||
Deductible Temporary Differences For Which No Deferred Tax Asset and Liabiities Is Recognised | 2,654 | |
Others | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||
Deductible Temporary Differences For Which No Deferred Tax Asset and Liabiities Is Recognised | 64,760 | 32,494 |
Others | ||
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||
Taxable Temporary Differences For Which No Deferred Tax Asset and Liabilities Is Recognised | ₩ 9,568 | ₩ 10,372 |
Earnings per Share - Summary of
Earnings per Share - Summary of Basic and Diluted Earnings per Share from Operations (Detail) - KRW (₩) ₩ / shares in Units, ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Basic earnings per share [abstract] | |||
Profit (loss) attributable to ordinary shares | ₩ 700,889 | ₩ 645,703 | ₩ 645,571 |
Weighted average number of ordinary shares outstanding | 245,207,307 | 245,171,283 | 245,049,466 |
Basic earnings per share (In Korean won) | ₩ 2,858 | ₩ 2,634 | ₩ 2,634 |
Profit attributable to ordinary shares (In millions of Korean won) | ₩ 700,889 | ₩ 645,703 | ₩ 645,571 |
Adjustment to net income attributable to ordinary shares (In millions of Korean won) | (157) | ||
Diluted profit attributable to ordinary shares (In millions of Korean won) | ₩ 700,889 | ₩ 645,546 | ₩ 645,571 |
Number of dilutive potential ordinary shares outstanding | 69,598 | 70,267 | 1,163 |
Weighted average number of ordinary shares outstanding | 245,276,905 | 245,241,550 | 245,050,629 |
Diluted earnings per share (In Korean won) | ₩ 2,858 | ₩ 2,632 | ₩ 2,634 |
Dividend - Additional Informati
Dividend - Additional Information (Detail) - KRW (₩) ₩ / shares in Units, ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of Dividends [abstract] | |||
Dividends paid | ₩ 269,766 | ₩ 269,659 | ₩ 245,097 |
Dividends paid per share | ₩ 1,100 | ₩ 1,100 | ₩ 1,000 |
Dividends declared | ₩ 326,487 | ||
Dividends declared per share | ₩ 1,350 |
Cash Generated from Operation_2
Cash Generated from Operations - Summary of Cash Flows from Operating Activities (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Cash flows from (used in) operating activities [abstract] | |||
Profit for the year | ₩ 746,256 | ₩ 695,868 | ₩ 719,412 |
Adjustments to reconcile net income | |||
Income tax expense | 285,349 | 320,060 | 314,565 |
Interest income | (291,425) | (303,722) | (265,817) |
Interest expense | 265,035 | 278,975 | 296,894 |
Dividends income | (4,442) | (3,408) | (2,910) |
Depreciation | 2,635,307 | 2,567,754 | 2,735,413 |
Amortization of intangible assets | 628,154 | 660,705 | 629,526 |
Depreciation of right-of-use assets | 404,175 | 442,629 | |
Provision for severance benefits | 255,615 | 256,525 | 245,926 |
Impairment losses on trade receivables | 139,957 | 60,193 | 113,064 |
Share of net profit or loss of associates and joint ventures | (18,041) | 3,252 | 5,912 |
Loss(gain) on disposal of associates and joint ventures | 111 | 30 | (3,737) |
Loss(gain) on disposal of right-of-use assets | 2,047 | 1,556 | |
Impairment losses on assets held for sale | 7,586 | ||
Loss on disposal of property and equipment and investment in properties | 55,590 | 49,284 | 68,688 |
Loss(gain) on disposal of intangible assets | 246 | (1,248) | (4,256) |
Loss on impairment of intangible assets | 211,636 | 61,899 | 12,997 |
Loss(gain) on foreign currency translation | (138,011) | 75,998 | 68,952 |
Loss(gain) on valuation and settlement of derivatives, net | 155,600 | (70,482) | (92,210) |
Loss(gain) on disposal of financial assets at fair value through profit or loss | 329 | (5,115) | (1,712) |
Gain on valuation of financial assets at fair value through profit or loss | (59,044) | (4,335) | (10,768) |
Loss(gain) on disposal of financial assets at amortized cost | (138) | 43 | (44) |
Others | 127,949 | 143,500 | (55,969) |
Changes in operating assets and liabilities | |||
Decrease(increase) in trade receivables | 66,462 | (433,292) | (81,217) |
Decrease(increase) in other receivables | 685,209 | (79,130) | 356,643 |
Decrease(increase) in other current assets | 9,089 | 984 | (123,258) |
Decrease(increase) in other non-current assets | (86,039) | (178,180) | 19,556 |
Decrease(increase) in inventories | 288,507 | 240,488 | (480,543) |
Increase(decrease) in trade payables | (135,760) | 44,354 | (167,841) |
Decrease in other payables | (1,232,646) | (102,375) | (448,301) |
Increase in other current liabilities | 127,076 | 43,384 | 291,548 |
Increase(decrease) in other non-current liabilities | (56,319) | (199,547) | 144,072 |
Decrease(Increase) in provisions | 2,264 | (12,164) | 85,946 |
Decrease(Increase) in deferred revenue | (1,948) | 641 | 48,201 |
Increase in plan assets | (136,336) | (375,499) | (53,301) |
Payment of severance benefits | (186,520) | (119,716) | (153,209) |
Cash generated from operations (1+2+3) | ₩ 4,745,293 | ₩ 4,058,065 | ₩ 4,212,222 |
Cash Generated from Operation_3
Cash Generated from Operations - Summary of Significant Transactions not Affecting Cash Flows (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Cash flows from (used in) operating activities [abstract] | |||
Reclassification of the current portion of borrowings | ₩ 1,229,359 | ₩ 1,030,056 | ₩ 1,149,599 |
Reclassification of construction-in-progress to property and equipment | 3,011,519 | 2,698,146 | 1,988,014 |
Reclassification of accounts payable from property and equipment | 22,052 | 685,859 | 122,185 |
Reclassification of accounts payable from intangible assets | (345,675) | (356,911) | 584,595 |
Reclassification of payable from defined benefit liability | 72,346 | (19,053) | (31,838) |
Reclassification of payable from plan assets | ₩ 66,046 | ₩ (14,298) | ₩ (9,497) |
Changes in Liabilities Arisin_3
Changes in Liabilities Arising from Financing Activities - Summary of Changes in Liabilities Arising from Financial Activities (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of reconciliation of liabilities arising from financing activities [line items] | ||
Beginning | ₩ 8,471,738 | ₩ 6,847,376 |
Cash flows | (259,601) | 112,632 |
Changes in Accounting Policy | 771,410 | |
Newly acquired | 507,472 | 774,906 |
Exchange difference | (12,607) | 6,435 |
Fair value change | (27,085) | (31,456) |
Change in Consolidation Scope | 3,564 | |
Other changes | (100,576) | (9,565) |
Ending | 8,582,905 | 8,471,738 |
Borrowings [member] | ||
Disclosure of reconciliation of liabilities arising from financing activities [line items] | ||
Beginning | 7,298,867 | 6,648,294 |
Cash flows | 167,867 | 574,175 |
Newly acquired | 17,523 | |
Exchange difference | (157,985) | 64,398 |
Other changes | (9,974) | 12,000 |
Ending | 7,316,298 | 7,298,867 |
Financial lease liabilities [member] | ||
Disclosure of reconciliation of liabilities arising from financing activities [line items] | ||
Beginning | 1,211,351 | 163,858 |
Cash flows | (447,784) | (485,444) |
Changes in Accounting Policy | 771,410 | |
Newly acquired | 473,477 | 774,906 |
Exchange difference | (3) | |
Fair value change | 40 | |
Change in Consolidation Scope | 3,564 | |
Other changes | (97,005) | (13,379) |
Ending | 1,143,640 | 1,211,351 |
Lease liabilities [member] | ||
Disclosure of reconciliation of liabilities arising from financing activities [line items] | ||
Cash flows | (13,674) | |
Newly acquired | 13,674 | |
Derivative assets [member] | ||
Disclosure of reconciliation of liabilities arising from financing activities [line items] | ||
Beginning | (58,576) | (29,843) |
Cash flows | 34,933 | 33,635 |
Exchange difference | 2,870 | (53,729) |
Fair value change | (3,456) | (11,398) |
Other changes | 16,623 | 2,759 |
Ending | (7,606) | (58,576) |
Derivative liabilities [member] | ||
Disclosure of reconciliation of liabilities arising from financing activities [line items] | ||
Beginning | 20,096 | 65,067 |
Cash flows | (943) | (9,734) |
Newly acquired | 2,798 | |
Exchange difference | 142,511 | (4,234) |
Fair value change | (23,669) | (20,058) |
Other changes | (10,220) | (10,945) |
Ending | ₩ 130,573 | ₩ 20,096 |
Segment Information - Summary o
Segment Information - Summary of Segment Information (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of operating segments [Line Items] | |||
Operating revenues | ₩ 24,440,647 | ₩ 24,899,189 | ₩ 23,436,050 |
Operating income (loss) | 1,022,333 | 1,026,970 | 1,100,860 |
Depreciation and Amortization | 3,634,284 | 3,629,492 | 3,281,732 |
Operating segments [member] | |||
Disclosure of operating segments [Line Items] | |||
Operating revenues | 28,612,919 | 28,863,426 | 27,346,281 |
Operating income (loss) | 1,175,172 | 1,080,040 | 1,201,682 |
Depreciation and Amortization | 3,718,122 | 3,709,297 | 3,274,768 |
Operating segments [member] | ICT [member] | |||
Disclosure of operating segments [Line Items] | |||
Operating revenues | 18,275,765 | 18,527,631 | 17,724,320 |
Operating income (loss) | 809,741 | 634,046 | 933,191 |
Depreciation and Amortization | 3,233,878 | 3,229,159 | 2,917,163 |
Operating segments [member] | Finance [member] | |||
Disclosure of operating segments [Line Items] | |||
Operating revenues | 3,686,430 | 3,795,185 | 3,771,681 |
Operating income (loss) | 85,008 | 158,235 | 148,440 |
Depreciation and Amortization | 53,098 | 27,852 | 22,580 |
Operating segments [member] | Satellite TV [member] | |||
Disclosure of operating segments [Line Items] | |||
Operating revenues | 706,631 | 694,637 | 690,821 |
Operating income (loss) | 71,345 | 69,357 | 66,735 |
Depreciation and Amortization | 84,931 | 94,992 | 98,310 |
Operating segments [member] | Others [member] | |||
Disclosure of operating segments [Line Items] | |||
Operating revenues | 5,944,093 | 5,845,973 | 5,159,459 |
Operating income (loss) | 209,078 | 218,402 | 53,316 |
Depreciation and Amortization | 346,215 | 357,294 | 236,715 |
Elimination [member] | |||
Disclosure of operating segments [Line Items] | |||
Operating revenues | (4,172,272) | (3,964,237) | (3,910,231) |
Operating income (loss) | (152,839) | (53,070) | (100,822) |
Depreciation and Amortization | ₩ (83,838) | ₩ (79,805) | ₩ 6,964 |
Segment Information - Summary_2
Segment Information - Summary of Segment Information (Parenthetical) (Detail) ₩ in Millions | Dec. 31, 2020KRW (₩) |
ICT [member] | |
Disclosure of operating segments [line items] | |
Property and equipment and intangible assets | ₩ 13,583,173 |
Segment Information - Summary_3
Segment Information - Summary of Operating Revenues and Non Current Assets by Geographical Regions (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of geographical areas [Line Items] | |||
Operating revenues | ₩ 24,440,647 | ₩ 24,899,189 | ₩ 23,436,050 |
Non-current assets | 18,953,009 | 19,275,095 | |
Domestic [member] | |||
Disclosure of geographical areas [Line Items] | |||
Operating revenues | 24,368,729 | 24,832,068 | 23,376,218 |
Non-current assets | 18,934,766 | 19,198,416 | |
Overseas [member] | |||
Disclosure of geographical areas [Line Items] | |||
Operating revenues | 71,918 | 67,121 | ₩ 59,832 |
Non-current assets | ₩ 18,243 | ₩ 76,679 |
Related Party Transactions - Su
Related Party Transactions - Summary of Related Parties Outstanding Balances of Receivables and Payables (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 |
Disclosure of transactions between related parties [line items] | |||
Dividend Income | ₩ 11,146 | ||
Payables | ₩ 20,857 | ₩ 57,907 | |
K-Realty CR-REITs No.1 [member] | |||
Disclosure of transactions between related parties [line items] | |||
Dividend Income | 8,932 | ||
Others [member] | |||
Disclosure of transactions between related parties [line items] | |||
Dividend Income | ₩ 2,148 | ||
Trade receivables [member] | |||
Disclosure of transactions between related parties [line items] | |||
Dividend Income | 1,304 | 1,625 | |
Trade receivables [member] | K-Realty CR-REITs No.1 [member] | |||
Disclosure of transactions between related parties [line items] | |||
Dividend Income | 457 | 608 | |
Trade receivables [member] | K Bank Inc. [member] | |||
Disclosure of transactions between related parties [line items] | |||
Dividend Income | 775 | 583 | |
Trade receivables [member] | Others [member] | |||
Disclosure of transactions between related parties [line items] | |||
Dividend Income | 72 | 434 | |
Loans and receivables [member] | |||
Disclosure of transactions between related parties [line items] | |||
Dividend Income | 50,311 | 37,941 | |
Loans and receivables [member] | K-Realty CR-REITs No.1 [member] | |||
Disclosure of transactions between related parties [line items] | |||
Dividend Income | 16,200 | 23,100 | |
Loans and receivables [member] | K Bank Inc. [member] | |||
Disclosure of transactions between related parties [line items] | |||
Dividend Income | 32,964 | 13,664 | |
Loans and receivables [member] | Others [member] | |||
Disclosure of transactions between related parties [line items] | |||
Dividend Income | 1,147 | 1,177 | |
Other payables [member] | |||
Disclosure of transactions between related parties [line items] | |||
Payables | 1,749 | 1,268 | |
Other payables [member] | K-Realty CR-REITs No.1 [member] | |||
Disclosure of transactions between related parties [line items] | |||
Payables | 20,857 | 57,907 | |
Other payables [member] | K Bank Inc. [member] | |||
Disclosure of transactions between related parties [line items] | |||
Payables | 891 | 557 | |
Other payables [member] | Others [member] | |||
Disclosure of transactions between related parties [line items] | |||
Payables | ₩ 858 | ₩ 711 |
Related Party Transactions - _2
Related Party Transactions - Summary of Significant Transactions with Related Parties (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of transactions between related parties [line items] | |||
Sales | ₩ 18,765 | ₩ 23,416 | ₩ 24,312 |
Purchases | 18,499 | 19,055 | 128,252 |
Dividend Income | 11,146 | ||
K-Realty CR-REITs No.1 [member] | |||
Disclosure of transactions between related parties [line items] | |||
Sales | 2,298 | 1,302 | 2,088 |
Purchases | 31,984 | ||
Dividend Income | 8,932 | ||
MOS GS Co., Ltd. [member] | |||
Disclosure of transactions between related parties [line items] | |||
Sales | 493 | ||
Purchases | 12,023 | ||
Dividend Income | 8 | ||
MOS Daegu Co., Ltd. [member] | |||
Disclosure of transactions between related parties [line items] | |||
Sales | 229 | ||
Purchases | 8,775 | ||
Dividend Income | 8 | ||
MOS Chungcheong Co., Ltd. [member] | |||
Disclosure of transactions between related parties [line items] | |||
Sales | 540 | ||
Purchases | 9,159 | ||
Dividend Income | 8 | ||
MOS Gangnam Co., Ltd. [member] | |||
Disclosure of transactions between related parties [line items] | |||
Sales | 333 | ||
Purchases | 11,549 | ||
Dividend Income | 10 | ||
MOS GB Co., Ltd. [member] | |||
Disclosure of transactions between related parties [line items] | |||
Sales | 1,378 | ||
Purchases | 16,519 | ||
Dividend Income | 12 | ||
MOS BS Co., Ltd. [member] | |||
Disclosure of transactions between related parties [line items] | |||
Sales | 324 | ||
Purchases | 11,193 | ||
Dividend Income | 10 | ||
MOS Honam Co., Ltd. [member] | |||
Disclosure of transactions between related parties [line items] | |||
Sales | 331 | ||
Purchases | 10,499 | ||
Dividend Income | 10 | ||
Others [member] | |||
Disclosure of transactions between related parties [line items] | |||
Sales | 809 | 2,888 | |
Purchases | 10,272 | 9,547 | |
Dividend Income | 2,148 | ||
K Bank Inc. [member] | |||
Disclosure of transactions between related parties [line items] | |||
Sales | 15,658 | 17,815 | 15,705 |
Purchases | ₩ 8,227 | 8,524 | 7,004 |
NgeneBio [member] | |||
Disclosure of transactions between related parties [line items] | |||
Sales | 1,498 | ₩ 3 | |
Purchases | 10,531 | ||
K-Realty CR-REITs No.10 [member] | |||
Disclosure of transactions between related parties [line items] | |||
Sales | ₩ 2,801 |
Related Party Transactions - _3
Related Party Transactions - Summary of Key Management Compensation (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of transactions between related parties [abstract] | |||
Salaries and other short-term benefits | ₩ 2,086 | ₩ 2,955 | ₩ 2,762 |
Post-employment benefits | 390 | 321 | 751 |
Stock-based compensation | 5,613 | 891 | 878 |
Total | ₩ 8,089 | ₩ 4,167 | ₩ 4,391 |
Related Party Transactions - _4
Related Party Transactions - Summary of Transactions Prior Liquidation (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 |
Statement [Line Items] | |||
Dividend Income | ₩ 11,146 | ||
Payables | ₩ 20,857 | ₩ 57,907 | |
K-Realty CR-REITs No.1 [member] | |||
Statement [Line Items] | |||
Dividend Income | 8,932 | ||
Others [member] | |||
Statement [Line Items] | |||
Dividend Income | ₩ 2,148 | ||
Acquisition of right of use assets [member] | |||
Statement [Line Items] | |||
Dividend Income | 776 | ||
Acquisition of right of use assets [member] | K-Realty CR-REITs No.1 [member] | |||
Statement [Line Items] | |||
Dividend Income | 776 | ||
Finance costs [member] | K-Realty CR-REITs No.1 [member] | |||
Statement [Line Items] | |||
Payables | 2,225 | ||
Interest Expense [member] | |||
Statement [Line Items] | |||
Payables | 917 | 2,225 | |
Interest Expense [member] | K-Realty CR-REITs No.1 [member] | |||
Statement [Line Items] | |||
Payables | 917 | ||
Dividend Income [member] | |||
Statement [Line Items] | |||
Payables | 17,345 | 15,354 | |
Dividend Income [member] | K-Realty CR-REITs No.1 [member] | |||
Statement [Line Items] | |||
Payables | 8,061 | 10,928 | |
Dividend Income [member] | Others [member] | |||
Statement [Line Items] | |||
Payables | 43 | 146 | |
Dividend Income [member] | Korea Information & Technology Investment Fund (KIF Investment Fund) [member] | |||
Statement [Line Items] | |||
Payables | 9,241 | ₩ 4,280 | |
Interest income [member] | |||
Statement [Line Items] | |||
Dividend Income | 14 | ||
Interest income [member] | K Bank Inc. [member] | |||
Statement [Line Items] | |||
Dividend Income | ₩ 14 |
Related Party Transactions - _5
Related Party Transactions - Summary of Fund Transactions with Related Parties (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | ₩ 255,302 | ₩ 25,603 | ₩ 24,713 |
Repayment | 20,304 | 30,385 | |
PT. Mitra Transaksi Indonesia [member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | 1,567 | ||
KT-IBKC future investment fund [member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | 3,750 | (1,050) | |
Korea Electronic Vehicle Charging Service [Member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | 168 | ||
Gyeonggi-KT Yoojin Superman Fund [member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | 1,000 | 1,000 | 1,000 |
K-REALTY CR REIT [member] | |||
Disclosure of transactions between related parties [line items] | |||
Repayment | 30,385 | ||
K Bank Inc. [member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | 195,011 | 21,782 | 26,725 |
MOS GS Co., Ltd. [member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | (147) | ||
MOS Daegu Co., Ltd. [member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | (147) | ||
MOS Chungcheong Co., Ltd. [member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | (153) | ||
MOS Gangnam Co., Ltd. [member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | (180) | ||
MOS GB Co., Ltd. [member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | (203) | ||
MOS BS Co., Ltd. [member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | (183) | ||
MOS Honam Co., Ltd. [member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | (206) | ||
PHI Healthcare Inc [member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | 1,000 | ||
KT-CKP New Media Investment Fund [member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | (109) | (174) | (1,229) |
KT-DSC creative economy youth start-up investment fund [member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | (1,800) | (1,800) | |
GE Premier 1st Corporate Restructuring Real Estate Investment Trust Company [member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | (3,423) | ||
JB Emerging Market Specialty Investment Private Equity Trust No one[member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | 3,960 | ||
Boston Global Film Contents Fund Lp [member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | ₩ (986) | ||
KT Philippines co. Ltd. {member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | 99 | ||
Virtua Realm Sendirian Berhad [member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | 550 | ||
KT-Smart Factory Investment Fund [member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | 2,800 | 2,800 | |
KT-SB Venture Investment Fund [member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | ₩ (2,404) | ||
Studio Discovery Co Ltd [Member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | 3,000 | ||
KT Young Entrepreneurs DNA Investment Fund [Member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | 3,600 | ||
Hyundai Robotics Co Ltd [Member] | |||
Disclosure of transactions between related parties [line items] | |||
Equity contributions in cash | 50,000 | ||
K-Realty CR-REITs No.1 [member] | |||
Disclosure of transactions between related parties [line items] | |||
Repayment | ₩ 20,304 |
Financial Risk Management - Sum
Financial Risk Management - Summary of Exposures to Risks, Effects on Profit before Income Tax and Shareholders' Equity (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
10% strengthening in foreign exchange rate [member] | |||
Disclosure of detailed information about financial instruments [line items] | |||
Fluctuation of foreign exchange rate | 10.00% | 10.00% | 10.00% |
Income before tax | ₩ 25,220 | ₩ 45,149 | ₩ 7,212 |
Shareholders' equity | ₩ 36,961 | ₩ 52,092 | ₩ 10,196 |
10% weakening in foreign exchange rate [member] | |||
Disclosure of detailed information about financial instruments [line items] | |||
Fluctuation of foreign exchange rate | 10.00% | 10.00% | 10.00% |
Income before tax | ₩ (25,220) | ₩ (45,149) | ₩ (12,413) |
Shareholders' equity | ₩ (36,961) | ₩ (52,092) | ₩ (9,625) |
Ten percentage increase in market equity price [member] | |||
Disclosure of detailed information about financial instruments [line items] | |||
Fluctuation of price | 10.00% | 10.00% | 10.00% |
Income before tax | ₩ 2,811 | ₩ 24 | ₩ 12 |
Shareholders' equity | ₩ 3,472 | ₩ 613 | ₩ 898 |
10% decrease in market equity price [member] | |||
Disclosure of detailed information about financial instruments [line items] | |||
Fluctuation of price | 10.00% | 10.00% | 10.00% |
Income before tax | ₩ (2,811) | ₩ (24) | ₩ (12) |
Shareholders' equity | ₩ (3,472) | ₩ (613) | ₩ (898) |
100 basis point increase in market interest rate [Member] | |||
Disclosure of detailed information about financial instruments [line items] | |||
Fluctuation of interest rate | 1.00% | 1.00% | 1.00% |
Income before tax | ₩ 973 | ₩ 425 | ₩ 1,059 |
Shareholders' equity | ₩ 18,584 | ₩ 14,764 | ₩ 9,689 |
100 basis point decrease in market interest rate [Member] | |||
Disclosure of detailed information about financial instruments [line items] | |||
Fluctuation of interest rate | 1.00% | 1.00% | 1.00% |
Income before tax | ₩ (973) | ₩ (482) | ₩ (1,958) |
Shareholders' equity | ₩ (19,377) | ₩ (19,280) | ₩ (10,237) |
Financial Risk Management - S_2
Financial Risk Management - Summary of Details of Financial Assets and Liabilities in Foreign Currencies (Detail) € in Thousands, ₫ in Thousands, ฿ in Thousands, ৳ in Thousands, دج in Thousands, ¥ in Thousands, ¥ in Thousands, £ in Thousands, zł in Thousands, Tsh in Thousands, P in Thousands, K in Thousands, FRw in Thousands, $ in Thousands, $ in Thousands, $ in Thousands, in Thousands, in Thousands, in Thousands, ₩ in Millions | Dec. 31, 2020KRW (₩) | Dec. 31, 2020TZS (Tsh) | Dec. 31, 2020XAF ( ) | Dec. 31, 2020SGD ($) | Dec. 31, 2020USD ($) | Dec. 31, 2020XDR ( ) | Dec. 31, 2020JPY (¥) | Dec. 31, 2020EUR (€) | Dec. 31, 2020PLN (zł) | Dec. 31, 2020VND (₫) | Dec. 31, 2020CNY (¥) | Dec. 31, 2020RWF (FRw) | Dec. 31, 2020THB (฿) | Dec. 31, 2020BWP (P) | Dec. 31, 2020HKD ($) | Dec. 31, 2019KRW (₩) | Dec. 31, 2019TZS (Tsh) | Dec. 31, 2019XAF ( ) | Dec. 31, 2019USD ($) | Dec. 31, 2019XDR ( ) | Dec. 31, 2019JPY (¥) | Dec. 31, 2019EUR (€) | Dec. 31, 2019BDT (৳) | Dec. 31, 2019VND (₫) | Dec. 31, 2019CNY (¥) | Dec. 31, 2019RWF (FRw) | Dec. 31, 2019MMK (K) | Dec. 31, 2019BWP (P) | Dec. 31, 2019HKD ($) | Dec. 31, 2019GBP (£) | Dec. 31, 2018TZS (Tsh) | Dec. 31, 2018XAF ( ) | Dec. 31, 2018USD ($) | Dec. 31, 2018XDR ( ) | Dec. 31, 2018JPY (¥) | Dec. 31, 2018EUR (€) | Dec. 31, 2018BDT (৳) | Dec. 31, 2018PLN (zł) | Dec. 31, 2018VND (₫) | Dec. 31, 2018DZD (دج) | Dec. 31, 2018CNY (¥) | Dec. 31, 2018UZS ( ) | Dec. 31, 2018RWF (FRw) | Dec. 31, 2018MMK (K) | Dec. 31, 2018BWP (P) | Dec. 31, 2018GBP (£) |
Disclosure of detailed information about financial instruments [line items] | ||||||||||||||||||||||||||||||||||||||||||||||
Financial assets | ₩ 10,476,853 | ₩ 11,000,665 | ||||||||||||||||||||||||||||||||||||||||||||
Financial liabilities | ₩ 14,597,106 | ₩ 16,128,644 | ||||||||||||||||||||||||||||||||||||||||||||
Currency risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||
Disclosure of detailed information about financial instruments [line items] | ||||||||||||||||||||||||||||||||||||||||||||||
Financial assets | Tsh 1,019 | 16,229 | $ 6 | $ 400,046 | 255 | ¥ 209,376 | € 316 | zł 26 | ₫ 242,370 | ¥ 458 | FRw 646 | ฿ 535 | P 212 | Tsh 6,919 | 97,411 | $ 645,941 | 255 | ¥ 24,930 | € 1 | ৳ 18,897 | ₫ 271,563 | ¥ 457 | FRw 706 | K 84 | P 911 | 666 | $ 528,539 | 267 | ¥ 66,078 | € 2 | ৳ 39,494 | zł 26 | ₫ 467,272 | دج 618 | ¥ 1,954 | 121,053 | FRw 857 | K 84 | P 897 | |||||||
Financial liabilities | $ 284,000 | $ 1,937,935 | 728 | ¥ 46,000,009 | € 162 | ¥ 491 | $ 198 | $ 1,830,764 | 729 | ¥ 80,000,000 | € 6 | ¥ 161 | $ 268 | £ 56 | Tsh 2,876 | $ 1,893,849 | 730 | ¥ 50,000,000 | € 6 | ¥ 171 | £ 256 |
Financial Risk Management - S_3
Financial Risk Management - Summary of Maximum Exposure to Credit Risk (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Disclosure of detailed information about financial instruments [line items] | ||
Maximum exposure to credit risk | ₩ 10,731,034 | ₩ 10,873,266 |
Cash and cash equivalents (except for cash on hand) [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Maximum exposure to credit risk | 2,625,581 | 2,226,608 |
Financial assets at amortized costs [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Maximum exposure to credit risk | 5,034,621 | 5,784,228 |
Financial assets at fair value through other comprehensive income [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Maximum exposure to credit risk | 1,118,619 | 1,256,266 |
Contract assets [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Maximum exposure to credit risk | 586,438 | 557,041 |
Derivatives financial assets for hedging [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Maximum exposure to credit risk | 7,684 | 58,576 |
Financial assets at fair value through profit or loss [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Maximum exposure to credit risk | 680,453 | 541,657 |
Other financial assets at fair value through other comprehensive income [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Maximum exposure to credit risk | 6,570 | 7,086 |
Other financial assets at amortized costs [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Maximum exposure to credit risk | ₩ 671,068 | ₩ 441,804 |
Financial Risk Management - S_4
Financial Risk Management - Summary of Contractual Undiscounted Cash Flows (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Trade and other payables | ₩ 7,576,809 | ₩ 9,324,730 |
Borrowings(including debentures) | 8,205,838 | 8,216,212 |
Lease liabilities | 1,143,640 | 1,211,352 |
Other non-derivative financial liabilities | 131,816 | 196,475 |
Financial guarantee contracts | 22,422 | 19,422 |
Total | 17,122,317 | 19,064,221 |
Less than 1 year [member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Trade and other payables | 6,587,796 | 8,149,445 |
Borrowings(including debentures) | 1,573,944 | 1,304,936 |
Lease liabilities | 336,024 | 397,609 |
Other non-derivative financial liabilities | 574 | 1,749 |
Financial guarantee contracts | 22,422 | 19,422 |
Total | 8,520,760 | 9,873,161 |
1-5 years [member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Trade and other payables | 730,758 | 805,241 |
Borrowings(including debentures) | 4,373,534 | 4,417,639 |
Lease liabilities | 658,501 | 688,518 |
Other non-derivative financial liabilities | 131,242 | 175,764 |
Financial guarantee contracts | ||
Total | 5,894,035 | 6,087,162 |
More than 5 years [member] | ||
Disclosure of maturity analysis for non-derivative financial liabilities [Line Items] | ||
Trade and other payables | 258,255 | 370,044 |
Borrowings(including debentures) | 2,258,360 | 2,493,637 |
Lease liabilities | 190,907 | 221,255 |
Other non-derivative financial liabilities | 18,962 | |
Financial guarantee contracts | ||
Total | ₩ 2,707,522 | ₩ 3,103,898 |
Financial Risk Management - S_5
Financial Risk Management - Summary of Cash Outflow and Inflow of Derivatives Settled Gross or Net are Undiscounted Contractual Cash Flow (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 |
Disclosure of maturity analysis for derivative financial liabilities [Line Items] | |||
Outflow | ₩ 2,925,965 | ₩ 2,760,957 | ₩ 2,439,559 |
Inflow | 2,804,618 | 2,857,949 | 2,496,356 |
Less than 1 year [member] | |||
Disclosure of maturity analysis for derivative financial liabilities [Line Items] | |||
Outflow | 248,300 | 650,497 | 455,343 |
Inflow | 249,301 | 684,720 | 484,505 |
1-5 years [member] | |||
Disclosure of maturity analysis for derivative financial liabilities [Line Items] | |||
Outflow | 2,179,046 | 1,602,513 | 1,466,915 |
Inflow | 2,074,747 | 1,648,746 | 1,492,718 |
More than 5 years [member] | |||
Disclosure of maturity analysis for derivative financial liabilities [Line Items] | |||
Outflow | 498,619 | 507,947 | 517,301 |
Inflow | ₩ 480,570 | ₩ 524,483 | ₩ 519,133 |
Financial Risk Management - S_6
Financial Risk Management - Summary of Debt-to-equity Ratios (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | |
Disclosure of detailed information about financial instruments [abstract] | ||||
Total liabilities | ₩ 18,111,112 | ₩ 19,491,530 | ||
Total equity | ₩ 15,551,433 | ₩ 15,140,684 | ₩ 14,658,490 | ₩ 13,183,354 |
Debt-to-equity ratio | 116.00% | 129.00% |
Financial Risk Management - S_7
Financial Risk Management - Summary of Gearing Ratios (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | |
Disclosure of detailed information about financial instruments [abstract] | ||||
Total borrowings | ₩ 7,316,298 | ₩ 7,298,867 | ||
Less: cash and cash equivalents | (2,634,624) | (2,305,894) | ₩ (2,703,422) | ₩ (1,928,182) |
Net debt | 4,681,674 | 4,992,973 | ||
Total equity | 15,551,433 | 15,140,684 | ₩ 14,658,490 | ₩ 13,183,354 |
Total capital | ₩ 20,233,107 | ₩ 20,133,657 | ||
Gearing ratio | 23.00% | 25.00% |
Financial Risk Management - S_8
Financial Risk Management - Summary of Group's Recognized Financial Assets Subject to Enforceable Master Netting Arrangements or Similar Agreements (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Disclosure of offsetting of financial assets [line items] | ||
Gross assets | ₩ 85,058 | |
Gross liabilities offset | (14) | |
Net amounts presented in the statement of financial position | 85,044 | |
Amounts not offset, Financial instruments | (82,130) | |
Amounts not offset, Cash collateral | 0 | |
Net amount | 2,914 | |
Trade receivables [member] | ||
Disclosure of offsetting of financial assets [line items] | ||
Gross assets | ₩ 71,497 | 66,487 |
Gross liabilities offset | (1) | (1) |
Net amounts presented in the statement of financial position | 71,496 | 66,486 |
Amounts not offset, Financial instruments | (67,421) | (63,604) |
Amounts not offset, Cash collateral | 0 | 0 |
Net amount | ₩ 4,075 | 2,882 |
Other Financial Assets1 [member] | ||
Disclosure of offsetting of financial assets [line items] | ||
Gross assets | 18,571 | |
Gross liabilities offset | (13) | |
Net amounts presented in the statement of financial position | 18,558 | |
Amounts not offset, Financial instruments | (18,526) | |
Amounts not offset, Cash collateral | 0 | |
Net amount | ₩ 32 |
Financial Risk Management - S_9
Financial Risk Management - Summary of Group's Recognized Financial Liabilities Subject to Enforceable Master Netting Arrangements or Similar Agreements (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Disclosure of offsetting of financial liabilities [Line Items] | ||
Gross liabilities | ₩ 69,362 | ₩ 84,178 |
Gross assets offset | (1) | (14) |
Net amounts presented in the statement of financial position | 69,361 | 84,164 |
Amounts not offset, Financial instruments | (67,421) | (82,130) |
Amounts not offset, Cash collateral | 0 | 0 |
Net amount | 1,940 | 2,034 |
Trade payables [member] | ||
Disclosure of offsetting of financial liabilities [Line Items] | ||
Gross liabilities | 69,361 | 65,669 |
Gross assets offset | (13) | |
Net amounts presented in the statement of financial position | 69,361 | 65,656 |
Amounts not offset, Financial instruments | (67,421) | (63,628) |
Amounts not offset, Cash collateral | 0 | 0 |
Net amount | 1,940 | 2,028 |
Other [member] | ||
Disclosure of offsetting of financial liabilities [Line Items] | ||
Gross liabilities | 1 | 18,509 |
Gross assets offset | (1) | (1) |
Net amounts presented in the statement of financial position | 18,508 | |
Amounts not offset, Financial instruments | (18,502) | |
Amounts not offset, Cash collateral | ₩ 0 | 0 |
Net amount | ₩ 6 |
Fair Value - Summary of Carryin
Fair Value - Summary of Carrying Amount and Fair Value of Financial Instruments by Category (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Disclosure of detailed information about financial instruments [line items] | ||
Financial assets | ₩ 10,476,853 | ₩ 11,000,665 |
Financial liabilities | 14,597,106 | 16,128,644 |
Trade and other payables [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial liabilities | 7,017,639 | 8,679,698 |
Borrowings [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial liabilities | 7,316,298 | 7,298,867 |
Financial Liabilities At Amortized Costs [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial liabilities | 132,558 | 129,945 |
Financial liabilities designated as at fair value through profit or loss [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial liabilities | 2,682 | 38 |
Derivative financial liabilities for hedging [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial liabilities | 127,929 | 20,096 |
Cash and cash equivalents [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial assets | 2,634,624 | 2,305,894 |
Financial assets at amortized costs [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial assets | 4,976,423 | 5,748,459 |
Financial assets at fair value through other comprehensive income [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial assets | 1,118,619 | 1,256,266 |
Other financial assets at amortized costs [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial assets | 671,068 | 441,804 |
Financial assets at fair value through profit or loss [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial assets | 809,919 | 632,324 |
Other financial assets at fair value through other comprehensive income [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial assets | 258,516 | 557,342 |
Derivatives financial assets for hedging [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial assets | 7,684 | 58,576 |
Fair value [member] | Trade and other payables [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial liabilities | 1 | 1 |
Fair value [member] | Borrowings [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial liabilities | 1 | 1 |
Fair value [member] | Financial Liabilities At Amortized Costs [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial liabilities | 1 | 1 |
Fair value [member] | Financial liabilities designated as at fair value through profit or loss [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial liabilities | 2,682 | 38 |
Fair value [member] | Derivative financial liabilities for hedging [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial liabilities | 127,929 | 20,096 |
Fair value [member] | Cash and cash equivalents [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial assets | 1 | 1 |
Fair value [member] | Financial assets at amortized costs [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial assets | 1 | 1 |
Fair value [member] | Financial assets at fair value through other comprehensive income [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial assets | 1,118,619 | 1,256,266 |
Fair value [member] | Other financial assets at amortized costs [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial assets | 1 | 1 |
Fair value [member] | Financial assets at fair value through profit or loss [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial assets | 809,919 | 632,324 |
Fair value [member] | Other financial assets at fair value through other comprehensive income [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial assets | 258,516 | 557,342 |
Fair value [member] | Derivatives financial assets for hedging [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Financial assets | ₩ 7,684 | ₩ 58,576 |
Fair Value - Summary of Fair Va
Fair Value - Summary of Fair Value Non of Financial Instruments (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | ₩ 4,840,220 | ₩ 4,809,091 |
Non financial liabilities | 130,611 | 20,134 |
Level 1 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 52,055 | 6,970 |
Non financial liabilities | 0 | |
Level 2 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 1,659,385 | 1,942,555 |
Non financial liabilities | 123,780 | 20,134 |
Level 3 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 3,128,780 | 2,859,566 |
Non financial liabilities | 6,831 | 0 |
Financial assets at fair value through other comprehensive income [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 1,118,619 | 1,256,266 |
Financial assets at fair value through other comprehensive income [member] | Level 1 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 0 | |
Financial assets at fair value through other comprehensive income [member] | Level 2 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 1,118,619 | 1,256,266 |
Financial assets at fair value through other comprehensive income [member] | Level 3 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 0 | |
Financial assets at fair value through profit or loss [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 809,919 | 632,324 |
Financial assets at fair value through profit or loss [member] | Level 1 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 46,449 | 232 |
Non financial liabilities | 0 | |
Financial assets at fair value through profit or loss [member] | Level 2 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 330,961 | 136,951 |
Financial assets at fair value through profit or loss [member] | Level 3 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 432,509 | 495,141 |
Non financial liabilities | 0 | |
Other financial assets at fair value through other comprehensive income [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 258,516 | 557,342 |
Other financial assets at fair value through other comprehensive income [member] | Level 1 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 5,606 | 6,738 |
Other financial assets at fair value through other comprehensive income [member] | Level 2 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 202,121 | 508,550 |
Other financial assets at fair value through other comprehensive income [member] | Level 3 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 50,789 | 42,054 |
Derivative financial assets for hedging [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 7,684 | 58,576 |
Derivative financial assets for hedging [member] | Level 2 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 7,684 | 40,788 |
Derivative financial assets for hedging [member] | Level 3 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 17,788 | |
Investment Properties [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 2,645,482 | 2,304,583 |
Investment Properties [member] | Level 1 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 0 | |
Investment Properties [member] | Level 2 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 0 | |
Investment Properties [member] | Level 3 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 2,645,482 | 2,304,583 |
Other financial liabilities at fair value through profit or loss [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial liabilities | 2,682 | 38 |
Other financial liabilities at fair value through profit or loss [member] | Level 2 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial liabilities | 45 | 38 |
Other financial liabilities at fair value through profit or loss [member] | Level 3 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial liabilities | 2,637 | |
Derivative financial liabilities for hedging [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial liabilities | 127,929 | 20,096 |
Derivative financial liabilities for hedging [member] | Level 1 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial assets | 0 | |
Non financial liabilities | 0 | |
Derivative financial liabilities for hedging [member] | Level 2 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial liabilities | 123,735 | 20,096 |
Derivative financial liabilities for hedging [member] | Level 3 [Member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Non financial liabilities | ₩ 4,194 | ₩ 0 |
Fair Value - Summary of Changes
Fair Value - Summary of Changes in Level 3 of Fair Value Hierarchy for Recurring Fair Value Measurements (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of detailed information about financial instruments [line items] | ||
Beginning balance | ₩ 11,000,665 | |
Ending balance | 10,476,853 | ₩ 11,000,665 |
Beginning balance | 16,128,644 | |
Ending balance | 14,597,106 | 16,128,644 |
Financial assets at fair value through profit or loss [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Beginning balance | 632,324 | |
Ending balance | 809,919 | 632,324 |
Level 3 [Member] | Financial assets at fair value through profit or loss [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Disposal | (9,734) | |
Recurring fair value measurement [Member] | Level 3 [Member] | Financial assets at fair value through profit or loss [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Beginning balance | 495,141 | |
Purchases | 374,259 | |
Reclassification | 208 | |
Disposal | (451,663) | (485,419) |
Amount recognized in profit or loss | 14,564 | |
Ending balance | 432,509 | 495,141 |
Recurring fair value measurement [Member] | Level 3 [Member] | Derivative financial liabilities [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Beginning balance | 17,788 | (10,183) |
Amount recognized in profit or loss | 14,462 | |
Amount recognized in other comprehensive income | 13,509 | |
Ending balance | 17,788 | |
Beginning balance | (17,788) | |
Amount recognized in profit or loss | 29,345 | |
Amount recognized in other comprehensive income | (7,363) | |
Ending balance | 4,194 | (17,788) |
Recurring fair value measurement [Member] | Level 3 [Member] | Financial liabilities designated as at fair value through profit or loss [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Beginning balance | 7,758 | |
Amount recognized in profit or loss | (161) | 1,976 |
Recurring fair value measurement [Member] | Level 3 [Member] | Financial assets at fair value through profit or loss [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Beginning balance | 495,141 | 163,600 |
Purchases | 584,671 | |
Reclassification | 225,873 | |
Amount recognized in profit or loss | 6,416 | |
Ending balance | 495,141 | |
Purchases | 2,798 | |
Ending balance | 2,637 | |
Recurring fair value measurement [Member] | Level 3 [Member] | Financial assets at fair value through other comprehensive income [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Beginning balance | 42,054 | 311,536 |
Purchases | 13,142 | 6,081 |
Reclassification | (444,782) | |
Disposal | (571) | (941) |
Amount recognized in profit or loss | (428) | |
Amount recognized in other comprehensive income | (3,408) | 170,160 |
Ending balance | ₩ 50,789 | ₩ 42,054 |
Fair Value - Summary of Valuati
Fair Value - Summary of Valuation Techniques and Inputs (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Assets | |||
Financial assets at fair value through other comprehensive income | ₩ 258,516 | ₩ 557,342 | |
Other financial assets | |||
Financial assets at fair value through profit or loss | 809,919 | 632,324 | |
Derivative financial assets for hedging | 7,684 | 58,576 | |
Investment properties | 1,368,453 | 1,387,430 | ₩ 1,091,084 |
Other financial liabilities | |||
Financial liabilities at fair value through profit or loss | 2,682 | 38 | |
Derivative financial liabilities for hedging | 127,929 | 20,096 | |
Level 2 [Member] | |||
Other financial assets | |||
Derivative financial assets for hedging | ₩ 7,684 | ₩ 58,576 | |
Other financial liabilities | |||
Valuation techniques | DCF Model | ||
Valuation techniques | DCF Model | ||
Level 2 [Member] | Financial assets at fair value through profit or loss [member] | |||
Other financial liabilities | |||
Valuation techniques | DCF Model | ||
Level 2 [Member] | Financial assets at fair value through other comprehensive income [member] | |||
Other financial liabilities | |||
Valuation techniques | DCF Model | DCF Model | |
Level 2 [Member] | Financial assets at fair value through other comprehensive income [member] | Trades and other receivables [member] | |||
Assets | |||
Financial assets at fair value through other comprehensive income | ₩ 1,118,619 | ₩ 1,256,266 | |
Level 2, 3 [Member] | |||
Other financial liabilities | |||
Derivative financial liabilities for hedging | ₩ 127,929 | 20,096 | |
Valuation techniques | Hull-White model, DCF Model | ||
Level 2, 3 [Member] | Financial assets at fair value through profit or loss [member] | |||
Other financial assets | |||
Financial assets at fair value through profit or loss | ₩ 763,470 | ₩ 632,092 | |
Other financial liabilities | |||
Valuation techniques | DCF Model, Adjusted net asset model | DCF Model, Adjusted net asset model | |
Valuation techniques | DCF Model, Binomial Option Pricing | ||
Level 2, 3 [Member] | Financial assets at fair value through other comprehensive income [member] | |||
Assets | |||
Financial assets at fair value through other comprehensive income | ₩ 252,910 | ₩ 550,604 | |
Other financial liabilities | |||
Valuation techniques | DCF Model, Comparable Company Analysis | DCF Model, Comparable Company Analysis | |
Level 3 [Member] | |||
Other financial assets | |||
Investment properties | ₩ 2,645,482 | ₩ 2,304,583 | |
Other financial liabilities | |||
Valuation techniques | DCF Model | DCF Model | |
Level 3 [Member] | Financial assets at fair value through profit or loss [member] | |||
Other financial liabilities | |||
Financial liabilities at fair value through profit or loss | ₩ 2,682 | ₩ 38 |
Fair Value - Summary of Details
Fair Value - Summary of Details and Changes of Total Deferred Difference (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of detailed information about financial instruments [line items] | ||
Beginning balance | ₩ 11,000,665 | |
Recognized at fair value through profit or loss | (809,919) | ₩ (632,324) |
Ending balance | 10,476,853 | 11,000,665 |
Beginning balance | 16,128,644 | |
Recognized at fair value through profit or loss | 2,682 | 38 |
Ending balance | 14,597,106 | 16,128,644 |
Derivatives held for trading [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Beginning balance | 0 | (2,824) |
New transactions | 0 | 0 |
Recognized at fair value through profit or loss | 0 | 2,824 |
Ending balance | 0 | 0 |
Derivatives used for hedging [member] | ||
Disclosure of detailed information about financial instruments [line items] | ||
Beginning balance | 3,682 | 5,107 |
New transactions | 0 | 0 |
Recognized at fair value through profit or loss | (1,425) | |
Ending balance | ₩ 2,257 | ₩ 3,682 |
Interests in Unconsolidated S_3
Interests in Unconsolidated Structured Entities - Summary of Unconsolidated Structured Entities and Nature of Risks (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Disclosure of unconsolidated structured entities [line items] | ||
Other financial assets | ₩ 1,747,187 | ₩ 1,690,046 |
Joint ventures and associates | 557,881 | 267,660 |
Real Estate Finance [member] | ||
Disclosure of unconsolidated structured entities [line items] | ||
Total assets of unconsolidated structured entities | 2,004,869 | 1,595,895 |
Other financial assets | 29,874 | 15,816 |
Joint ventures and associates | 51,607 | 8,542 |
Total | 81,481 | 24,358 |
Maximum loss exposure Investment assets | 81,481 | 24,358 |
PEF &Investment Fund [member] | ||
Disclosure of unconsolidated structured entities [line items] | ||
Total assets of unconsolidated structured entities | 4,380,534 | 4,060,992 |
Other financial assets | 128,332 | 100,496 |
Joint ventures and associates | 219,753 | 192,022 |
Total | 348,085 | 292,518 |
Maximum loss exposure Investment assets | 348,085 | 292,518 |
Cash deficiency support | 29,130 | |
Asset Securitization [member] | ||
Disclosure of unconsolidated structured entities [line items] | ||
Total assets of unconsolidated structured entities | 2,152,412 | 2,562,931 |
Unconsolidated structured entities [member] | ||
Disclosure of unconsolidated structured entities [line items] | ||
Total assets of unconsolidated structured entities | 8,537,815 | 8,219,818 |
Other financial assets | 158,206 | 116,312 |
Joint ventures and associates | 271,360 | 200,564 |
Total | 429,566 | 316,876 |
Maximum loss exposure Investment assets | 429,566 | ₩ 316,876 |
Cash deficiency support | ₩ 29,130 |
Information About Non-control_3
Information About Non-controlling Interests - Summary of Changes in Accumulated Non-controlling Interests (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of subsidiaries [line items] | |||
Accumulated non-controlling interests at the beginning of the year | ₩ 1,520,160 | ||
Profit or loss allocated to non-controlling interests | 45,367 | ₩ 50,165 | ₩ 73,841 |
Accumulated non-controlling interests at the end of the year | ₩ 1,539,989 | ₩ 1,520,160 | |
KT Skylife Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Non-controlling Interests rate(%) | 49.70% | 49.70% | 49.70% |
Accumulated non-controlling interests at the beginning of the year | ₩ 375,906 | ₩ 374,150 | ₩ 328,302 |
Profit or loss allocated to non-controlling interests | 22,171 | 10,029 | 23,405 |
Dividend paid to non-controlling interests | (8,279) | (8,279) | (8,279) |
Others | (898) | 6 | 30,722 |
Accumulated non-controlling interests at the end of the year | ₩ 388,900 | ₩ 375,906 | ₩ 374,150 |
BC Card Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Non-controlling Interests rate(%) | 30.50% | 30.50% | 30.50% |
Accumulated non-controlling interests at the beginning of the year | ₩ 417,475 | ₩ 345,547 | ₩ 339,067 |
Profit or loss allocated to non-controlling interests | 9,899 | 37,795 | 28,418 |
Dividend paid to non-controlling interests | (22,787) | (18,900) | (35,924) |
Others | 7,239 | 53,033 | 13,986 |
Accumulated non-controlling interests at the end of the year | ₩ 411,826 | ₩ 417,475 | ₩ 345,547 |
KT Powertel Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Non-controlling Interests rate(%) | 55.20% | 55.20% | 55.20% |
Accumulated non-controlling interests at the beginning of the year | ₩ 54,276 | ₩ 52,865 | ₩ 53,053 |
Profit or loss allocated to non-controlling interests | 2,151 | 1,751 | (3,058) |
Dividend paid to non-controlling interests | (478) | ||
Others | (202) | (340) | 2,870 |
Accumulated non-controlling interests at the end of the year | ₩ 55,747 | ₩ 54,276 | ₩ 52,865 |
KT Hitel Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Non-controlling Interests rate(%) | 32.90% | 32.90% | 32.90% |
Accumulated non-controlling interests at the beginning of the year | ₩ 54,709 | ₩ 52,336 | ₩ 53,146 |
Profit or loss allocated to non-controlling interests | (1,840) | 1,720 | 454 |
Others | (2,563) | 653 | (1,264) |
Accumulated non-controlling interests at the end of the year | ₩ 50,306 | ₩ 54,709 | ₩ 52,336 |
KT Telecop Co., Ltd. [member] | |||
Disclosure of subsidiaries [line items] | |||
Non-controlling Interests rate(%) | 13.20% | 13.20% | 13.20% |
Accumulated non-controlling interests at the beginning of the year | ₩ 3,650 | ₩ 103,357 | ₩ 103,468 |
Profit or loss allocated to non-controlling interests | 152 | (588) | 59 |
Others | (208) | (99,119) | (170) |
Accumulated non-controlling interests at the end of the year | ₩ 3,594 | ₩ 3,650 | ₩ 103,357 |
Information About Non-control_4
Information About Non-controlling Interests - Summary of Financial Information on Subsidiaries (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | |
Disclosure of subsidiaries [line items] | ||||
Current assets | ₩ 11,154,180 | ₩ 11,975,659 | ||
Non-current assets | 22,508,365 | 22,656,555 | ||
Current liabilities | 9,192,472 | 10,148,054 | ||
Non-current liabilities | 8,918,640 | 9,343,476 | ||
Equity | 15,551,433 | 15,140,684 | ₩ 14,658,490 | ₩ 13,183,354 |
Operating revenue | 24,440,647 | 24,899,189 | 23,436,050 | |
Profit or loss for the year | 746,256 | 695,868 | 719,412 | |
Total comprehensive income (loss) | 769,511 | 868,206 | 664,784 | |
Cash flows from operating activities | 4,739,827 | 3,745,173 | 4,010,464 | |
Cash flows from investing activities | (3,761,470) | (3,887,472) | (2,704,130) | |
Cash flows from financing activities | (647,585) | (249,748) | (531,675) | |
Net (decrease)/increase in cash and cash equivalents | 328,730 | (397,528) | 775,240 | |
Cash and cash equivalents at beginning of year | 2,305,894 | 2,703,422 | 1,928,182 | |
Exchange differences | (2,042) | (5,481) | 581 | |
Cash and cash equivalents at end of year | ₩ 2,634,624 | ₩ 2,305,894 | ₩ 2,703,422 | |
KT Skylife Co., Ltd. [member] | ||||
Disclosure of subsidiaries [line items] | ||||
Non-controlling Interests rate (%) | 49.70% | 49.70% | 49.70% | |
Current assets | ₩ 480,450 | ₩ 459,077 | ₩ 301,739 | |
Non-current assets | 439,026 | 389,199 | 514,263 | |
Current liabilities | 153,236 | 123,506 | 112,411 | |
Non-current liabilities | 21,803 | 19,333 | 37,430 | |
Equity | 744,437 | 705,437 | 666,161 | |
Operating revenue | 706,631 | 704,996 | 694,059 | |
Profit or loss for the year | 58,190 | 56,008 | 52,010 | |
Total comprehensive income (loss) | 55,647 | 55,936 | 47,787 | |
Cash flows from operating activities | 160,934 | 152,549 | 183,474 | |
Cash flows from investing activities | (105,293) | (101,594) | (139,846) | |
Cash flows from financing activities | (19,650) | (18,833) | (77,647) | |
Net (decrease)/increase in cash and cash equivalents | 35,991 | 32,122 | (34,019) | |
Cash and cash equivalents at beginning of year | 63,850 | 31,728 | 65,747 | |
Exchange differences | (7) | 0 | ||
Cash and cash equivalents at end of year | ₩ 99,834 | ₩ 63,850 | ₩ 31,728 | |
BC Card Co., Ltd. [member] | ||||
Disclosure of subsidiaries [line items] | ||||
Non-controlling Interests rate (%) | 30.50% | 30.50% | 30.50% | |
Current assets | ₩ 1,785,914 | ₩ 2,580,634 | ₩ 2,997,429 | |
Non-current assets | 1,298,484 | 1,332,348 | 724,950 | |
Current liabilities | 1,602,667 | 2,452,219 | 2,520,050 | |
Non-current liabilities | 176,083 | 142,013 | 110,486 | |
Equity | 1,305,648 | 1,318,750 | 1,091,843 | |
Operating revenue | 3,387,640 | 3,553,008 | 3,551,715 | |
Profit or loss for the year | 39,455 | 115,885 | 70,889 | |
Total comprehensive income (loss) | 61,796 | 289,122 | 116,604 | |
Cash flows from operating activities | (119,163) | 429,331 | 86,299 | |
Cash flows from investing activities | 58,042 | (419,894) | 128,538 | |
Cash flows from financing activities | 22,790 | (5,744) | (117,561) | |
Net (decrease)/increase in cash and cash equivalents | (38,331) | 3,693 | 97,276 | |
Cash and cash equivalents at beginning of year | 279,162 | 275,089 | 177,826 | |
Exchange differences | (247) | 380 | (13) | |
Cash and cash equivalents at end of year | ₩ 240,584 | ₩ 279,162 | ₩ 275,089 | |
KT Powertel Co., Ltd. [member] | ||||
Disclosure of subsidiaries [line items] | ||||
Non-controlling Interests rate (%) | 55.20% | 55.20% | 55.20% | |
Current assets | ₩ 90,056 | ₩ 86,465 | ₩ 84,785 | |
Non-current assets | 29,638 | 31,587 | 39,279 | |
Current liabilities | 17,045 | 17,757 | 27,187 | |
Non-current liabilities | 1,788 | 2,009 | 1,030 | |
Equity | 100,861 | 98,286 | 95,847 | |
Operating revenue | 65,897 | 62,846 | 65,620 | |
Profit or loss for the year | 3,809 | 3,085 | (5,545) | |
Total comprehensive income (loss) | 3,442 | 2,469 | (5,792) | |
Cash flows from operating activities | 6,011 | 780 | 11,603 | |
Cash flows from investing activities | (3,353) | (9,525) | (2,580) | |
Cash flows from financing activities | (1,515) | (687) | ||
Net (decrease)/increase in cash and cash equivalents | 1,143 | (9,432) | 9,023 | |
Cash and cash equivalents at beginning of year | 6,217 | 15,649 | 6,626 | |
Exchange differences | 0 | 0 | ||
Cash and cash equivalents at end of year | ₩ 7,360 | ₩ 6,217 | ₩ 15,649 | |
KT Hitel Co., Ltd. [member] | ||||
Disclosure of subsidiaries [line items] | ||||
Non-controlling Interests rate (%) | 32.90% | 32.90% | 32.90% | |
Current assets | ₩ 140,948 | ₩ 115,694 | ₩ 161,162 | |
Non-current assets | 148,001 | 164,124 | 111,546 | |
Current liabilities | 74,045 | 62,378 | 63,231 | |
Non-current liabilities | 18,554 | 12,391 | 2,812 | |
Equity | 196,350 | 205,049 | 206,665 | |
Operating revenue | 350,231 | 323,065 | 279,117 | |
Profit or loss for the year | 2,080 | 1,426 | 657 | |
Total comprehensive income (loss) | (8,700) | (1,840) | 738 | |
Cash flows from operating activities | 62,521 | 49,870 | 43,855 | |
Cash flows from investing activities | (58,186) | (50,138) | (26,335) | |
Cash flows from financing activities | (1,856) | (1,860) | ||
Net (decrease)/increase in cash and cash equivalents | 2,479 | (2,128) | 17,520 | |
Cash and cash equivalents at beginning of year | 37,043 | 39,186 | 21,647 | |
Exchange differences | (83) | (15) | 19 | |
Cash and cash equivalents at end of year | ₩ 39,439 | ₩ 37,043 | ₩ 39,186 | |
KT Telecop Co., Ltd. [member] | ||||
Disclosure of subsidiaries [line items] | ||||
Non-controlling Interests rate (%) | 13.20% | 13.20% | 13.20% | |
Current assets | ₩ 79,076 | ₩ 55,908 | ₩ 52,367 | |
Non-current assets | 239,380 | 223,969 | 220,125 | |
Current liabilities | 136,565 | 64,218 | 85,648 | |
Non-current liabilities | 57,172 | 89,622 | 54,666 | |
Equity | 124,719 | 126,037 | 132,178 | |
Operating revenue | 392,489 | 332,063 | 328,262 | |
Profit or loss for the year | 212 | (4,875) | 166 | |
Total comprehensive income (loss) | (1,319) | (6,558) | (1,517) | |
Cash flows from operating activities | 35,834 | 52,693 | 40,351 | |
Cash flows from investing activities | (57,976) | (44,393) | (76,969) | |
Cash flows from financing activities | 14,652 | (5,227) | 10,000 | |
Net (decrease)/increase in cash and cash equivalents | (7,490) | 3,073 | (26,618) | |
Cash and cash equivalents at beginning of year | 8,781 | 5,708 | 32,326 | |
Exchange differences | 0 | 0 | ||
Cash and cash equivalents at end of year | ₩ 1,291 | ₩ 8,781 | ₩ 5,708 |
Information About Non-control_5
Information About Non-controlling Interests - Summary of Changes in Ownership Interest on the Equity Attributable to Owners (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | ||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
Disclosure of subsidiaries [abstract] | |||
Carrying amount of non-controlling interests acquired | ₩ 1,750 | ₩ (9,566) | ₩ (194) |
Consideration paid to non-controlling interests | 9,878 | 484 | 11,312 |
Excess of consideration paid recognized in parent's equity | ₩ 11,628 | ₩ (9,082) | ₩ 11,118 |
Business Combination - Addition
Business Combination - Additional Information (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Apr. 30, 2020 | |
Disclosure of detailed information about business combination [Line Items] | ||
identifiable intangible assets generated | ₩ 410 | |
Goodwill generated | 407 | |
operating income of combined entity | 250,380 | |
net loss of combined entity | 1,948 | |
operating income | 387,697 | |
net loss | 8,461 | |
KT Engineering Co Ltd [Member] | ||
Disclosure of detailed information about business combination [Line Items] | ||
Number of shares acquired | 1,400,000 | |
Percentage of ownership interest | 59.80% | |
KT Estate [Member] | ||
Disclosure of detailed information about business combination [Line Items] | ||
Number of shares acquired | 940,000 | |
Percentage of ownership interest | 40.20% | |
Business combinations [member] | ||
Disclosure of detailed information about business combination [Line Items] | ||
identifiable intangible assets generated | 3 | |
Goodwill generated | ₩ 407 |
Business Combination - Schedule
Business Combination - Schedule of Fair Value of Assets and Liabilities Recognized as a Result of Acquisition at Acquisition Date (Detail) ₩ in Millions | Dec. 31, 2020KRW (₩) |
Disclosure of detailed information about business combination [Line Items] | |
Total transfer cost (a) | ₩ 46,800 |
Recognized amount of assets acquired and liabilities assumed (b) | 46,393 |
Cash and cash equivalents | 57,845 |
Trade and other receivables | 95,814 |
Other financial assets | 3,110 |
Other assets | 14,021 |
Inventories | 1,521 |
Property and equipment | 3,128 |
Intangible assets | 410 |
Trade and other payables | (105,964) |
Other liabilities | (4,815) |
Current income tax liabilities | (3,664) |
Other provisions | (13,745) |
Retirement benefit liabilities | (1,268) |
Goodwill | ₩ 407 |
Changes in Accounting Policie_3
Changes in Accounting Policies - Determination of Lease Term Considering Economic Penalty - Summary of Impact on Consolidated Financial Statements Due to Application of accounting policy (Detail) - KRW (₩) ₩ / shares in Units, ₩ in Millions | 12 Months Ended | |||
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | |
Current assets | ||||
Prepaid expenses | ₩ 66,578 | ₩ 84,768 | ||
Non-current assets | ||||
Right-of-use assets | 1,217,179 | 1,268,329 | ||
Current liabilities | ||||
Lease liabilities | 392,433 | |||
Non-current liabilities | ||||
Lease liabilities | 818,919 | |||
Total liabilities | 18,111,112 | 19,491,530 | ||
Retained earnings | 12,155,420 | 11,590,916 | ||
Total equity | 15,551,433 | 15,140,684 | ₩ 14,658,490 | ₩ 13,183,354 |
Operating revenue | 24,440,647 | 24,899,189 | 23,436,050 | |
Operating expenses | 23,418,314 | 23,872,219 | 22,335,190 | |
Finance income | 498,614 | 424,395 | 374,243 | |
Financial costs | 507,383 | 432,133 | 435,659 | |
Income tax expense | 285,349 | 320,060 | 314,565 | |
Profit for the year | ₩ 746,256 | ₩ 695,868 | ₩ 719,412 | |
Basic earnings per share | ₩ 2,858 | ₩ 2,634 | ₩ 2,634 | |
Diluted earnings per share | ₩ 2,858 | ₩ 2,632 | ₩ 2,634 | |
Adjustment on Accounting policy | ||||
Current assets | ||||
Prepaid expenses | ₩ (2,119) | ₩ (1,026) | ||
Non-current assets | ||||
Right-of-use assets | 632,145 | 479,832 | ||
Current liabilities | ||||
Lease liabilities | 63,263 | 36,600 | ||
Non-current liabilities | ||||
Lease liabilities | 566,532 | 445,612 | ||
Total liabilities | 629,795 | 482,212 | ||
Retained earnings | 232 | (3,406) | ||
Total equity | 232 | (3,406) | ||
Operating revenue | 5,796 | |||
Operating expenses | (7,063) | (6,796) | ||
Financial costs | 9,222 | 10,202 | ||
Profit for the year | ₩ 3,637 | ₩ (3,406) | ||
Basic earnings per share | ₩ 15 | ₩ (14) | ||
Diluted earnings per share | ₩ 18 | ₩ (14) | ||
Previously stated [member] | ||||
Current assets | ||||
Prepaid expenses | ₩ 61,930 | ₩ 76,036 | ||
Non-current assets | ||||
Right-of-use assets | 585,034 | 788,497 | ||
Current liabilities | ||||
Lease liabilities | 281,961 | 355,833 | ||
Non-current liabilities | ||||
Lease liabilities | 798,416 | 373,307 | ||
Total liabilities | 513,845 | 729,140 | ||
Retained earnings | 12,155,188 | 11,594,322 | ||
Total equity | 12,155,188 | 11,594,322 | ||
Operating revenue | 24,434,851 | 24,899,189 | ||
Operating expenses | 23,425,377 | 23,879,015 | ||
Finance income | 498,614 | 424,395 | ||
Financial costs | 498,161 | 421,931 | ||
Income tax expense | 285,349 | 320,060 | ||
Profit for the year | ₩ 742,619 | ₩ 699,274 | ||
Basic earnings per share | ₩ 2,843 | ₩ 2,648 | ||
Diluted earnings per share | ₩ 2,840 | ₩ 2,646 | ||
Adjustment on Accounting policy | ||||
Current assets | ||||
Prepaid expenses | ₩ 59,811 | ₩ 75,010 | ||
Non-current assets | ||||
Right-of-use assets | 1,217,179 | 1,268,329 | ||
Current liabilities | ||||
Lease liabilities | 345,224 | 392,433 | ||
Non-current liabilities | ||||
Lease liabilities | 798,416 | 818,919 | ||
Total liabilities | 1,143,640 | 1,211,352 | ||
Retained earnings | 12,155,420 | 11,590,916 | ||
Total equity | 12,155,420 | 11,590,916 | ||
Operating revenue | 24,440,647 | 24,899,189 | ||
Operating expenses | 23,418,314 | 23,872,219 | ||
Finance income | 498,614 | 424,395 | ||
Financial costs | 507,383 | 432,133 | ||
Income tax expense | 285,349 | 320,060 | ||
Profit for the year | ₩ 746,256 | ₩ 695,868 | ||
Basic earnings per share | ₩ 2,858 | ₩ 2,634 | ||
Diluted earnings per share | ₩ 2,858 | ₩ 2,632 |
Changes in Accounting Policie_4
Changes in Accounting Policies - Determination of Lease Term Considering Economic Penalty - Additional Information (Detail) ₩ in Millions | Jan. 01, 2019KRW (₩) |
Increase (decrease) due to changes in accounting policy [member] | |
Disclosure of reclassifications or changes in presentation [line items] | |
Increase (decrease) through changes in accounting policy, right of use assets | ₩ 128,035 |
Increase (decrease) through changes in accounting policy, lease liabilities | 128,035 |
IFRS 16 [Member] | |
Disclosure of reclassifications or changes in presentation [line items] | |
Increase (decrease) through changes in accounting policy, right of use assets | 899,783 |
Increase (decrease) through changes in accounting policy, lease liabilities | ₩ 643,375 |
Events after Reporting Period -
Events after Reporting Period - Summary of Public Bonds Issued After Reporting Period (Detail) ₩ in Millions | 12 Months Ended |
Dec. 31, 2020KRW (₩) | |
Disclosure of non-adjusting events after reporting period [line items] | |
Interest rate | 0.00% |
Redemption date | Jun. 5, 2025 |
Gross carrying amount [member] | The 194-1st Public bond, January Twenty six, twenty twenty four [member] | |
Disclosure of non-adjusting events after reporting period [line items] | |
Issue date | Jan. 27, 2021 |
Carrying amount | ₩ 130,000 |
Interest rate | 1.13% |
Redemption date | Jan. 26, 2024 |
Gross carrying amount [member] | The 194-2nd Public bond, January twenty seven, twenty twenty six [member] | |
Disclosure of non-adjusting events after reporting period [line items] | |
Issue date | Jan. 27, 2021 |
Carrying amount | ₩ 140,000 |
Interest rate | 1.45% |
Redemption date | Jan. 27, 2026 |
Gross carrying amount [member] | The194-3rd Public bond, January twenty seven, twenty thirty one [member] | |
Disclosure of non-adjusting events after reporting period [line items] | |
Issue date | Jan. 27, 2021 |
Carrying amount | ₩ 50,000 |
Interest rate | 1.85% |
Redemption date | Jan. 27, 2031 |
Gross carrying amount [member] | The194-4th Public bond, January twenty five, twenty forty one [member] | |
Disclosure of non-adjusting events after reporting period [line items] | |
Issue date | Jan. 27, 2021 |
Carrying amount | ₩ 80,000 |
Interest rate | 1.98% |
Redemption date | Jan. 25, 2041 |