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Consolidated Statements of Comprehensive Income (Loss) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Statement of comprehensive income [abstract] |  |  |
Total revenue from external customers (Notes 2,4, 35, 45, 47) | ₩ 70,546,024 | ₩ 60,012,375 | ₩ 57,926,634
Sales of goods | 69,184,469 | 58,800,977 | 56,685,109
Sales of construction services (Note 20) | 646,953 | 754,998 | 812,175
Sales of services | 714,602 | 456,400 | 429,350
Cost of sales | (100,903,594) | (63,644,290) | (51,804,179)
Cost of sales (Notes 2,14,25,43 and 47) | (99,441,768) | (62,164,425) | (50,352,898)
Cost of sales of construction services | (941,254) | (898,963) | (1,009,430)
Cost of sales of services | (520,572) | (580,902) | (441,851)
Selling and administrative expenses (Notes 25,36,43 and 47) | (3,009,422) | (2,875,796) | (2,678,443)
Gross profit (loss) | (30,357,570) | (3,631,915) | 6,122,455
Other income (Note 28 and 37) | 1,095,489 | 1,034,133 | 1,036,448
Other expenses (Note 37) | (212,150) | (257,932) | (417,720)
Other gains (losses), net (Note 38) | 243,122 | 8,519 | 35,094
Operating profit (loss) (Note 4) | (32,240,531) | (5,722,991) | 4,097,834
Finance income (Notes 5,12 and 39) | 1,833,312 | 1,402,614 | 1,510,249
Finance expenses (Notes 5,12 and 40) | (4,746,791) | (3,245,777) | (2,896,443)
Gain on valuation of investments in associates and joint ventures | 1,393,486 | 775,588 | 398,972
Gain on disposal of investments in associates and joint ventures | 11,091 | 1,844 | 10,165
Loss on valuation of investments in associates and joint ventures | (55,193) | (218,532) | (119,848)
Loss on disposal of investments in associates and joint ventures | (1,675) | (64,119) | (16)
Loss on impairment of investments in associates and joint ventures | (5,174) | 0 | (1,556)
Loss on disposal of investments in subsidiaries | (32,144) | (197) | (6,610)
Profit (loss) related to associates, joint ventures and subsidiaries (Notes 4,16 and 17) | 1,310,391 | 494,584 | 281,107
Profit (loss) before income tax | (33,843,619) | (7,071,570) | 2,992,747
Income tax benefit (expense) (Note 41) | 9,414,511 | 1,855,989 | (899,064)
Profit (loss) for the year | (24,429,108) | (5,215,581) | 2,093,683
Other comprehensive income (loss), net of tax (Notes 5,12,25,31 and 34) | 1,246,869 | 599,614 | (219,841)
Items that will not be reclassified subsequently to profit or loss: |  |  |
Remeasurements of defined benefit liability (Notes 25 and 31) | 663,095 | 210,409 | (69,804)
Share of other comprehensive income of associates and joint ventures | 12,305 | 3,609 | 3,181
Net change in fair value of financial assets at fair value through other comprehensive income (loss) | 58,010 | 59,024 | (8,532)
Items that may be reclassified subsequently to profit or loss: |  |  |
Net change in the unrealized fair value of derivatives using cash flow hedge accounting (Notes 5, 12 and 34) | (24,415) | (15,778) | 64,561
Foreign currency translation of foreign operations (Note 34) | 28,387 | 41,189 | (76,442)
Share of other comprehensive income (loss) of associates and joint ventures | 509,487 | 301,161 | (132,805)
Total comprehensive income (loss) for the year | (23,182,239) | (4,615,967) | 1,873,842
Profit (loss) attributable to: |  |  |
Owners of the controlling company (Note 44) | (24,466,853) | (5,304,522) | 1,992,077
Non-controlling interests | 37,745 | 88,941 | 101,606
Profit (loss) for the year | (24,429,108) | (5,215,581) | 2,093,683
Total comprehensive income (loss) attributable to: |  |  |
Owners of the controlling company | (23,273,171) | (4,743,513) | 1,803,554
Non-controlling interests | 90,932 | 127,546 | 70,288
Total comprehensive income (loss) for the year | ₩ (23,182,239) | ₩ (4,615,967) | ₩ 1,873,842
Earnings (loss) per share (in won) ((Notes 2 and 44) |  |  |
Basic earnings (loss) per share | ₩ (38,112) | ₩ (8,263) | ₩ 3,102
Diluted earnings (loss) per share | ₩ (38,112) | ₩ (8,263) | ₩ 3,102

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