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v3.23.1

Lease - Summary of Right-of-Use Assets (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Increase |  | ₩ 12,486,698 |  | ₩ 12,638,471
Depreciation |  | (509,068) |  | (558,565)
Right-of-use assets |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | 4,059,397 |  | 4,542,166
Increase |  | 197,016 |  | 78,213
Depreciation |  | (509,068) |  | (558,565)
Decrease |  | (2,838) |  | (11,787)
Others |  | (33,382) |  | 9,370
Ending balance |  | 3,711,125 |  | 4,059,397
Right-of-use assets | Acquisition cost |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | 7,848,138 |  |
Ending balance |  | 5,992,724 |  | 7,848,138
Right-of-use assets | Accumulated depreciation |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | (3,788,741) |  |
Ending balance |  | (2,281,599) |  | (3,788,741)
Land |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | 652,795 |  | 706,579
Increase |  | 63,654 |  | 7,312
Depreciation |  | (41,260) |  | (57,231)
Decrease |  | 0 |  | 0
Others |  | (13,390) |  | (3,865)
Ending balance |  | 661,799 |  | 652,795
Land | Acquisition cost |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | 814,795 |  |
Ending balance |  | 886,076 |  | 814,795
Land | Accumulated depreciation |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | (162,000) |  |
Ending balance |  | (224,277) |  | (162,000)
Buildings |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | 62,884 |  | 47,222
Increase |  | 42,399 |  | 22,336
Depreciation |  | (30,243) |  | (25,780)
Decrease |  | (1,042) |  | (1,469)
Others |  | 858 |  | 20,575
Ending balance |  | 74,856 |  | 62,884
Buildings | Acquisition cost |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | 106,823 |  |
Ending balance |  | 135,290 |  | 106,823
Buildings | Accumulated depreciation |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | (43,939) |  |
Ending balance |  | (60,434) |  | (43,939)
Structures |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | 21,148 |  | 20,486
Increase |  | 4,256 |  | 2,198
Depreciation |  | (1,758) |  | (1,536)
Decrease |  | 0 |  | 0
Others |  | 319 |  | 0
Ending balance |  | 23,965 |  | 21,148
Structures | Acquisition cost |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | 26,374 |  |
Ending balance |  | 30,879 |  | 26,374
Structures | Accumulated depreciation |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | (5,226) |  |
Ending balance |  | (6,914) |  | (5,226)
Machinery |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | 565 |  | 695
Increase |  | 429 |  | 0
Depreciation |  | (159) |  | (130)
Decrease |  | 0 |  | 0
Others |  | 0 |  | 0
Ending balance |  | 835 |  | 565
Machinery | Acquisition cost |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | 1,308 |  |
Ending balance |  | 1,737 |  | 1,308
Machinery | Accumulated depreciation |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | (743) |  |
Ending balance |  | (902) |  | (743)
Ships |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | 3,029,219 |  | 3,437,363
Increase |  | 0 |  | 9,694
Depreciation |  | (393,677) |  | (411,291)
Decrease |  | 0 |  | 0
Others |  | (38,679) |  | (6,547)
Ending balance |  | 2,596,863 |  | 3,029,219
Ships | Acquisition cost |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | 4,217,735 |  |
Ending balance |  | 4,151,460 |  | 4,217,735
Ships | Accumulated depreciation |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | (1,188,516) |  |
Ending balance |  | (1,554,597) |  | (1,188,516)
Vehicles |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | 13,618 |  | 13,525
Increase |  | 13,475 |  | 9,583
Depreciation |  | (8,673) |  | (8,162)
Decrease |  | (962) |  | (7)
Others |  | (2,742) |  | (1,321)
Ending balance |  | 14,716 |  | 13,618
Vehicles | Acquisition cost |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | 30,375 |  |
Ending balance |  | 35,712 |  | 30,375
Vehicles | Accumulated depreciation |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | (16,757) |  |
Ending balance |  | (20,996) |  | (16,757)
Others |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance |  | 279,168 | [1] | 316,296
Increase |  | 72,803 |  | 27,090
Depreciation |  | (33,298) |  | (54,435)
Decrease |  | (834) |  | (10,311)
Others |  | 20,252 |  | 528
Ending balance | [1] | 338,091 |  | 279,168
Others | Acquisition cost |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance | [1] | 2,650,728 |  |
Ending balance | [1] | 751,570 |  | 2,650,728
Others | Accumulated depreciation |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance | [1] | (2,371,560) |  |
Ending balance | [1] | ₩ (413,479) |  | ₩ (2,371,560)
[1] | Including a power purchase agreement (“PPA”) with CGN Yulchon Generation Co., Ltd.

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- Definition The amount of depreciation of right-of-use assets. [Refer: Depreciation and amortisation expense; Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2022-03-24 -Paragraph 53 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2022-en-r&anchor=para_53_a&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of assets that represent a lessee's right to use an underlying asset for the lease term. Underlying asset is an asset that is the subject of a lease, for which the right to use that asset has been provided by a lessor to a lessee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2022-03-24 -Paragraph 53 -Subparagraph j -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2022-en-r&anchor=para_53_j&doctype=Standard -URIDate 2022-03-24 + Details
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