XML 205 R194.htm IDEA: XBRL DOCUMENT
v3.22.1

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, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | ₩ 4,367 | ₩ (612) |
Consolidated statements of profit or loss | (229,545) | (72,124) | ₩ (199,527)
Other comprehensive income | 4,948 | 77,103 |
Ending | (220,230) | 4,367 | (612)
Deferred tax liabilities derivative assets [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | (843) |  |
Consolidated statements of profit or loss | (18,326) |  |
Other comprehensive income | (1,400) |  |
Ending | (20,569) | (843) |
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 | (181,564) | (108,191) |
Consolidated statements of profit or loss | (68,166) | (64,553) |
Other comprehensive income | 9,097 | (8,820) |
Ending | (240,663) | (181,564) | (108,191)
Deferred tax liabilities depreciation [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | (4,175) | (11,606) |
Consolidated statements of profit or loss | (84,413) | 7,431 |
Ending | (88,588) | (4,175) | (11,606)
Deferred tax liabilities advanced depreciation provision [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | (311,918) | (313,121) |
Consolidated statements of profit or loss | (27,087) | 1,203 |
Ending | (339,005) | (311,918) | (313,121)
Deferred tax liabilities deposits for severance benefits [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | (521,257) | (496,853) |
Consolidated statements of profit or loss | (17,340) | (26,419) |
Other comprehensive income | (331) | 2,015 |
Ending | (538,928) | (521,257) | (496,853)
Deferred tax liabilities accrued income [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | (1,753) | (1,541) |
Consolidated statements of profit or loss | 598 | (212) |
Ending | (1,155) | (1,753) | (1,541)
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 | (469,353) | (523,150) |
Consolidated statements of profit or loss | (132,256) | 53,797 |
Other comprehensive income | (178) |  |
Ending | (601,787) | (469,353) | (523,150)
Deferred tax derivative assets [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning |  | (10,898) |
Consolidated statements of profit or loss |  | 10,055 |
Ending |  |  | (10,898)
Deferred tax assets provision for impairment or trade receivables [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | 89,065 | 84,071 |
Consolidated statements of profit or loss | 5,343 | 4,994 |
Ending | 94,408 | 89,065 | 84,071
Deferred tax assets inventory valuation [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | (236) | 23 |
Consolidated statements of profit or loss | 236 | (259) |
Ending | 0 | (236) | 23
Deferred tax assets contribution for construction [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | 16,400 | 16,154 |
Consolidated statements of profit or loss | (1,376) | 246 |
Ending | 15,024 | 16,400 | 16,154
Deferred Tax Assets Provisions [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | 34,022 | 32,824 |
Consolidated statements of profit or loss | 951 | 1,198 |
Ending | 34,973 | 34,022 | 32,824
Deferred tax assets property, plant and equipment [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | 226,960 | 228,655 |
Consolidated statements of profit or loss | (1,139) | (1,695) |
Ending | 225,821 | 226,960 | 228,655
Deferred Tax assets assets retirement obligation [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | 28,133 | 29,016 |
Consolidated statements of profit or loss | 333 | (883) |
Ending | 28,466 | 28,133 | 29,016
Deferred tax assets withholding of facilities expenses [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | 5,747 | 6,183 |
Consolidated statements of profit or loss | (446) | (436) |
Ending | 5,301 | 5,747 | 6,183
Deferred tax assets deduction of installment receivables [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | 28 | 48 |
Consolidated statements of profit or loss | (7) | (20) |
Ending | 21 | 28 | 48
Deferred tax assets gain or loss foreign currency translation [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | 138 | 20,677 |
Consolidated statements of profit or loss | 18,417 | (20,539) |
Ending | 18,555 | 138 | 20,677
Deferred tax assets deferred revenue [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | 43,030 | 35,800 |
Consolidated statements of profit or loss | 18,287 | 7,230 |
Ending | 61,317 | 43,030 | 35,800
Deferred tax assets real-estate sales [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | 0 | 13,685 |
Consolidated statements of profit or loss |  | (13,685) |
Ending |  | 0 | 13,685
Other deferred tax assets [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | 585,587 | 708,437 |
Consolidated statements of profit or loss | 83,852 | (123,798) |
Other comprehensive income |  | 948 |
Ending | 669,439 | 585,587 | 708,437
Deferred tax assets [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | 1,891,262 | 1,905,480 |
Consolidated statements of profit or loss | 145,372 | (20,492) |
Other comprehensive income | (18,609) | 6,274 |
Ending | 2,018,025 | 1,891,262 | 1,905,480
Deferred tax assets defined benefit liabilities [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | 598,364 | 569,471 |
Consolidated statements of profit or loss | (8,663) | 13,707 |
Other comprehensive income | (18,365) | 15,186 |
Ending | 571,336 | 598,364 | 569,471
Deferred tax assets tax credit carry forwards [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | 144,931 | 128,245 |
Consolidated statements of profit or loss | (10,514) | 16,686 |
Ending | 134,417 | 144,931 | 128,245
Deferred tax liabilities contract assets [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | (166,544) | (53,750) |
Consolidated statements of profit or loss | (50,103) | (112,794) |
Ending | (216,647) | (166,544) | (53,750)
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 | (627) | (323) |
Consolidated statements of profit or loss | 291 | (304) |
Ending | (336) | (627) | (323)
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 | (30,623) | (103,837) |
Consolidated statements of profit or loss | (33,267) | (4,420) |
Other comprehensive income | 16,369 | 77,634 |
Ending | (47,521) | (30,623) | (103,837)
Deferred tax assets unsettled expenses [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | 136,078 | 160,436 |
Consolidated statements of profit or loss | 31,826 | (24,358) |
Ending | 167,904 | 136,078 | 160,436
Temporary differences [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | (140,564) | (128,857) |
Consolidated statements of profit or loss | (219,031) | (88,810) |
Other comprehensive income | 4,948 | 77,103 |
Ending | (354,647) | (140,564) | (128,857)
Deferred tax liabilities [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | (2,031,826) | (2,034,337) |
Consolidated statements of profit or loss | (364,403) | (68,318) |
Other comprehensive income | 23,557 | 70,829 |
Ending | (2,372,672) | (2,031,826) | (2,034,337)
Deferred Tax Liabilities Contract Cost [Member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | (342,965) | (410,863) |
Consolidated statements of profit or loss | 65,695 | 67,898 |
Ending | (277,270) | (342,965) | ₩ (410,863)
Deferred Tax Assets Derivative instrument [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | 30,482 |  |
Consolidated statements of profit or loss | 8,085 | 40,342 |
Other comprehensive income | (244) | (9,860) |
Ending | 38,323 | 30,482 |
Deferred Tax Assets Contract Assets [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Beginning | 97,464 |  |
Consolidated statements of profit or loss | (10,327) | 97,464 |
Ending | 87,137 | ₩ 97,464 |
Deferred tax Liabilities inventory valuation [Member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |  |
Consolidated statements of profit or loss | (29) |  |
Ending | ₩ (29) |  |

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