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v3.23.1

Property, Plant and Equipment - Summary of Changes in Property, Plant and Equipment (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Changes in property and equipment [Line Items] |  |
Beginning balance | ₩ 173,134,638 | ₩ 168,710,600
Acquisitions | 12,486,698 | 12,638,471
Disposals | (756,967) | (613,515)
Depreciation | (12,304,766) | (11,774,945)
Impairment | 97,425 | (4,056)
Others | 5,208,280 | 4,178,083
Ending balance | 177,865,308 | 173,134,638
Acquisition cost |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 287,628,367 |
Ending balance | 301,417,289 | 287,628,367
Accumulated depreciation |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (113,125,414) |
Ending balance | (122,280,663) | (113,125,414)
Accumulated impairment losses |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (866,906) |
Ending balance | (756,064) | (866,906)
Government grants |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (501,409) |
Ending balance | (515,254) | (501,409)
Land |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 14,084,491 |
Ending balance | 14,243,532 | 14,084,491
Land | Carrying Amount Other than Government Grants [Member] |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 14,107,965 | 13,943,326
Acquisitions | 9,535 | 9,561
Disposals | (49,377) | (54,447)
Depreciation | 0 | 0
Impairment | 0 | 0
Others | 202,814 | 209,525
Ending balance | 14,270,937 | 14,107,965
Land | Acquisition cost |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 14,135,452 |
Ending balance | 14,298,409 | 14,135,452
Land | Accumulated depreciation |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 0 |
Ending balance | 0 | 0
Land | Accumulated impairment losses |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (27,487) |
Ending balance | (27,472) | (27,487)
Land | Government grants |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (23,474) | (23,475)
Acquisitions | 0 | 0
Disposals | 1 | 1
Depreciation | 0 | 0
Impairment | 0 | 0
Others | (3,932) | 0
Ending balance | (27,405) | (23,474)
Buildings |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 12,874,104 |
Ending balance | 13,241,763 | 12,874,104
Buildings | Carrying Amount Other than Government Grants [Member] |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 12,926,226 | 12,616,532
Acquisitions | 3,202 | 9,036
Disposals | (19,918) | (19,974)
Depreciation | (906,528) | (889,539)
Impairment | (449) | 0
Others | 1,289,667 | 1,210,171
Ending balance | 13,292,200 | 12,926,226
Buildings | Acquisition cost |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 22,974,569 |
Ending balance | 24,230,827 | 22,974,569
Buildings | Accumulated depreciation |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (10,041,270) |
Ending balance | (10,931,672) | (10,041,270)
Buildings | Accumulated impairment losses |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (7,073) |
Ending balance | (6,955) | (7,073)
Buildings | Government grants |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (52,122) | (57,231)
Acquisitions | 0 | 0
Disposals | 0 | 0
Depreciation | 5,360 | 5,174
Impairment | 0 | 0
Others | (3,675) | (65)
Ending balance | (50,437) | (52,122)
Structures |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 48,118,031 |
Ending balance | 50,283,627 | 48,118,031
Structures | Carrying Amount Other than Government Grants [Member] |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 48,290,052 | 46,258,855
Acquisitions | 217,450 | 630
Disposals | (277,308) | (319,287)
Depreciation | (2,677,395) | (2,582,488)
Impairment | (3,669) | (741)
Others | 4,900,105 | 4,933,083
Ending balance | 50,449,235 | 48,290,052
Structures | Acquisition cost |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 78,474,620 |
Ending balance | 83,055,890 | 78,474,620
Structures | Accumulated depreciation |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (30,171,363) |
Ending balance | (32,596,265) | (30,171,363)
Structures | Accumulated impairment losses |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (13,205) |
Ending balance | (10,390) | (13,205)
Structures | Government grants |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (172,021) | (180,009)
Acquisitions | 0 | 0
Disposals | 1,250 | 1,811
Depreciation | 9,568 | 9,517
Impairment | 0 | 0
Others | (4,405) | (3,340)
Ending balance | (165,608) | (172,021)
Machinery |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 51,615,300 |
Ending balance | 54,064,659 | 51,615,300
Machinery | Carrying Amount Other than Government Grants [Member] |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 51,755,382 | 50,038,787
Acquisitions | 248,932 | 268,126
Disposals | (188,924) | (135,803)
Depreciation | (5,748,407) | (5,759,425)
Impairment | (33,191) | 0
Others | 8,157,993 | 7,343,697
Ending balance | 54,191,785 | 51,755,382
Machinery | Acquisition cost |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 101,062,220 |
Ending balance | 108,749,243 | 101,062,220
Machinery | Accumulated depreciation |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (48,791,847) |
Ending balance | (54,015,594) | (48,791,847)
Machinery | Accumulated impairment losses |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (514,991) |
Ending balance | (541,864) | (514,991)
Machinery | Government grants |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (140,082) | (157,785)
Acquisitions | 0 | 0
Disposals | 405 | 531
Depreciation | 17,283 | 17,519
Impairment | 0 | 0
Others | (4,732) | (347)
Ending balance | (127,126) | (140,082)
Ships |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 177 |
Ending balance | 13,476 | 177
Ships | Carrying Amount Other than Government Grants [Member] |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 177 | 255
Acquisitions | 0 | 0
Disposals | 0 | 0
Depreciation | (1,053) | (103)
Impairment | 0 | 0
Others | 14,352 | 25
Ending balance | 13,476 | 177
Ships | Acquisition cost |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 2,068 |
Ending balance | 17,264 | 2,068
Ships | Accumulated depreciation |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (1,891) |
Ending balance | (3,788) | (1,891)
Ships | Accumulated impairment losses |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 0 |
Ending balance | 0 | 0
Ships | Government grants |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 0 |
Ending balance | 0 | 0
Vehicles |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 87,582 |
Ending balance | 85,642 | 87,582
Vehicles | Carrying Amount Other than Government Grants [Member] |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 89,257 | 78,983
Acquisitions | 1,813 | 4,807
Disposals | (88) | (4,298)
Depreciation | (41,907) | (37,980)
Impairment | 0 | 0
Others | 38,612 | 47,745
Ending balance | 87,687 | 89,257
Vehicles | Acquisition cost |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 371,207 |
Ending balance | 393,046 | 371,207
Vehicles | Accumulated depreciation |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (281,833) |
Ending balance | (305,242) | (281,833)
Vehicles | Accumulated impairment losses |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (117) |
Ending balance | (117) | (117)
Vehicles | Government grants |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (1,675) | (632)
Acquisitions | 0 | (26)
Disposals | 0 | 0
Depreciation | 663 | 460
Impairment | 0 | 0
Others | (1,033) | (1,477)
Ending balance | (2,045) | (1,675)
Equipment |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 397,034 |
Ending balance | 429,133 | 397,034
Equipment | Carrying Amount Other than Government Grants [Member] |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 397,183 | 407,843
Acquisitions | 79,369 | 54,875
Disposals | (183) | (667)
Depreciation | (205,908) | (184,007)
Impairment | (1) | 0
Others | 165,281 | 119,139
Ending balance | 435,741 | 397,183
Equipment | Acquisition cost |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 1,989,115 |
Ending balance | 2,168,348 | 1,989,115
Equipment | Accumulated depreciation |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (1,591,890) |
Ending balance | (1,732,564) | (1,591,890)
Equipment | Accumulated impairment losses |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (42) |
Ending balance | (43) | (42)
Equipment | Government grants |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (149) | (227)
Acquisitions | 0 | 0
Disposals | 0 | 0
Depreciation | 494 | 95
Impairment | 0 | 0
Others | (6,953) | (17)
Ending balance | (6,608) | (149)
Tools |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 183,001 |
Ending balance | 178,402 | 183,001
Tools | Carrying Amount Other than Government Grants [Member] |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 183,065 | 192,387
Acquisitions | 25,291 | 19,389
Disposals | (180) | (89)
Depreciation | (77,902) | (81,984)
Impairment | 0 | 0
Others | 48,227 | 53,362
Ending balance | 178,501 | 183,065
Tools | Acquisition cost |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 1,256,189 |
Ending balance | 1,306,509 | 1,256,189
Tools | Accumulated depreciation |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (1,073,086) |
Ending balance | (1,128,002) | (1,073,086)
Tools | Accumulated impairment losses |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (38) |
Ending balance | (6) | (38)
Tools | Government grants |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (64) | (239)
Acquisitions | 0 | 0
Disposals | 0 | 0
Depreciation | 32 | 209
Impairment | 0 | 0
Others | (67) | (34)
Ending balance | (99) | (64)
Construction in progress |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 30,044,272 |
Ending balance | 27,905,545 | 30,044,272
Construction in progress | Carrying Amount Other than Government Grants [Member] |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 30,156,094 | 30,964,938
Acquisitions | 11,671,907 | 12,183,430
Disposals | (197,293) | (66,965)
Depreciation | 0 | 0
Impairment | 134,735 | (3,315)
Others | (13,723,972) | (12,921,994)
Ending balance | 28,041,471 | 30,156,094
Construction in progress | Acquisition cost |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 30,313,624 |
Ending balance | 28,064,266 | 30,313,624
Construction in progress | Accumulated depreciation |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 0 |
Ending balance | 0 | 0
Construction in progress | Accumulated impairment losses |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (157,530) |
Ending balance | (22,795) | (157,530)
Construction in progress | Government grants |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (111,822) | (79,126)
Acquisitions | 23,155 | 5,027
Disposals | 17 | 0
Depreciation | 0 | 0
Impairment | 0 | 0
Others | (47,276) | (37,723)
Ending balance | (135,926) | (111,822)
Right-of-use assets |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 4,059,397 |
Ending balance | 3,711,125 | 4,059,397
Right-of-use assets | Carrying Amount Other than Government Grants [Member] |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 4,059,397 | 4,542,166
Acquisitions | 197,016 | 78,213
Disposals | (2,838) | (11,787)
Depreciation | (509,068) | (558,565)
Impairment | 0 | 0
Others | (33,382) | 9,370
Ending balance | 3,711,125 | 4,059,397
Right-of-use assets | Acquisition cost |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 7,848,138 |
Ending balance | 5,992,724 | 7,848,138
Right-of-use assets | Accumulated depreciation |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (3,788,741) |
Ending balance | (2,281,599) | (3,788,741)
Right-of-use assets | Accumulated impairment losses |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 0 |
Ending balance | 0 | 0
Right-of-use assets | Government grants |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 0 |
Ending balance | 0 | 0
Retirements, property, plant and equipment |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 8,925,388 |
Ending balance | 11,288,967 | 8,925,388
Retirements, property, plant and equipment | Carrying Amount Other than Government Grants [Member] |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 8,925,388 | 7,413,171
Acquisitions | 0 | 92
Disposals | 0 | (209)
Depreciation | (1,133,866) | (844,518)
Impairment | 0 | 0
Others | 3,497,445 | 2,356,852
Ending balance | 11,288,967 | 8,925,388
Retirements, property, plant and equipment | Acquisition cost |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 14,348,920 |
Ending balance | 17,620,603 | 14,348,920
Retirements, property, plant and equipment | Accumulated depreciation |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (5,277,109) |
Ending balance | (6,185,214) | (5,277,109)
Retirements, property, plant and equipment | Accumulated impairment losses |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (146,423) |
Ending balance | (146,422) | (146,423)
Retirements, property, plant and equipment | Government grants |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 0 |
Ending balance | 0 | 0
Other property, plant and equipment |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 2,745,861 |
Ending balance | 2,419,437 | 2,745,861
Other property, plant and equipment | Carrying Amount Other than Government Grants [Member] |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 2,745,861 | 2,752,081
Acquisitions | 9,028 | 5,311
Disposals | (22,531) | (2,332)
Depreciation | (1,036,132) | (869,310)
Impairment | 0 | 0
Others | 723,211 | 860,111
Ending balance | 2,419,437 | 2,745,861
Other property, plant and equipment | Acquisition cost |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 14,852,245 |
Ending balance | 15,520,160 | 14,852,245
Other property, plant and equipment | Accumulated depreciation |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | (12,106,384) |
Ending balance | (13,100,723) | (12,106,384)
Other property, plant and equipment | Accumulated impairment losses |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 0 |
Ending balance | 0 | 0
Other property, plant and equipment | Government grants |  |
Changes in property and equipment [Line Items] |  |
Beginning balance | 0 |
Ending balance | ₩ 0 | ₩ 0

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