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v3.20.1

Selling and Administrative Expenses (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Expenses by nature [Line Items] |  |  |
Raw materials used | ₩ 17,084,029 | ₩ 19,537,928 | ₩ 15,924,707
Salaries | 4,609,976 | 4,236,623 | 4,214,974
Retirement benefits expense | 809,739 | 440,612 | 468,946
Welfare and benefit expense | 563,945 | 596,572 | 723,144
Insurance expense | 106,129 | 106,057 | 106,091
Depreciation | 10,966,756 | 9,898,386 | 9,652,219
Amortization of intangible assets | 156,915 | 118,938 | 113,672
Bad debt expense | (12,719) | 39,784 | 126,714
Commission | 1,011,710 | 1,189,284 | 1,143,435
Advertising expense | 44,305 | 40,313 | 125,436
Training expense | 24,077 | 20,373 | 21,389
Vehicle maintenance expense | 17,177 | 17,957 | 17,466
Publishing expense | 6,837 | 6,837 | 7,920
Business promotion expense | 7,019 | 6,645 | 8,673
Rent expense | 216,918 | 213,983 | 186,889
Telecommunication expense | 19,485 | 106,073 | 98,872
Transportation expense | 5,420 | 5,223 | 9,640
Taxes and dues | 540,350 | 486,741 | 486,038
Expendable supplies expense | 39,681 | 38,010 | 39,725
Water, light and heating expense | 44,245 | 47,269 | 40,695
Repairs and maintenance expense | 2,298,854 | 2,219,248 | 2,111,420
Ordinary development expense | 735,715 | 723,888 | 721,437
Travel expense | 84,233 | 81,427 | 85,673
Clothing expense | 16,908 | 14,476 | 13,395
Survey and analysis expense | 4,797 | 4,634 | 4,359
Membership fee | 13,699 | 12,606 | 9,604
Power purchase | 18,269,732 | 18,307,289 | 14,264,331
Disclosure - Other selling and administrative expenses |  |  |
Accommodation development expenses | 53,945 | 52,822 | 55,799
Miscellaneous wages | 39,794 | 32,447 | 32,300
Litigation and filing expenses | 21,768 | 12,853 | 11,881
Compensation for damages | (1,924) | 19,193 | 12,297
Outsourcing expenses | 3,293 | 3,036 | 2,647
Reward expenses | 2,858 | 2,713 | 2,786
Overseas market development expenses | 1,997 | 1,361 | 1,876
Others | 28,775 | 23,772 | 35,123
Others | 2,763,479 | 2,318,435 | 4,134,846
General and administrative expenses | 2,669,576 | 2,627,890 | 2,762,855
Cost of sales | 57,779,835 | 58,207,721 | 52,098,855
Total expenses, by nature | 60,449,411 | 60,835,611 | 54,861,710
Selling and administrative expense |  |  |
Expenses by nature [Line Items] |  |  |
Raw materials used | 0 | 0 | 0
Salaries | 775,204 | 757,819 | 735,383
Retirement benefits expense | 157,272 | 65,107 | 71,094
Welfare and benefit expense | 120,463 | 132,089 | 179,406
Insurance expense | 12,427 | 12,181 | 15,414
Depreciation | 232,510 | 214,499 | 190,245
Amortization of intangible assets | 76,547 | 54,153 | 44,990
Bad debt expense | (12,719) | 39,784 | 126,714
Commission | 632,849 | 714,096 | 673,740
Advertising expense | 34,453 | 30,894 | 114,519
Training expense | 7,174 | 6,277 | 7,027
Vehicle maintenance expense | 9,525 | 10,148 | 9,998
Publishing expense | 3,414 | 3,307 | 3,672
Business promotion expense | 3,038 | 2,785 | 3,700
Rent expense | 40,505 | 42,851 | 38,380
Telecommunication expense | 8,451 | 23,505 | 24,916
Transportation expense | 865 | 686 | 495
Taxes and dues | 58,666 | 46,424 | 48,395
Expendable supplies expense | 6,682 | 6,166 | 7,731
Water, light and heating expense | 11,867 | 12,629 | 10,545
Repairs and maintenance expense | 88,576 | 62,580 | 63,477
Ordinary development expense | 224,463 | 215,494 | 211,417
Travel expense | 15,652 | 14,363 | 16,658
Clothing expense | 9,369 | 10,108 | 8,410
Survey and analysis expense | 848 | 705 | 698
Membership fee | 969 | 1,043 | 1,122
Power purchase | 0 | 0 | 0
Disclosure - Other selling and administrative expenses |  |  |
Accommodation development expenses | 53,945 | 52,822 | 55,799
Miscellaneous wages | 39,794 | 32,447 | 32,300
Litigation and filing expenses | 21,768 | 12,853 | 11,881
Compensation for damages | (1,924) | 19,193 | 12,297
Outsourcing expenses | 3,293 | 3,036 | 2,647
Reward expenses | 2,858 | 2,713 | 2,786
Overseas market development expenses | 1,997 | 1,361 | 1,876
Others | 28,775 | 23,772 | 35,123
Others | 150,506 | 148,197 | 154,709
General and administrative expenses | 2,669,576 | 2,627,890 | 2,762,855
Total expenses, by nature | ₩ 2,669,576 | ₩ 2,627,890 | ₩ 2,762,855

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- Definition The amount of amortisation expense. Amortisation is the systematic allocation of depreciable amounts of intangible assets over their useful lives. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of costs relating to expenses directly or indirectly attributed to the goods or services sold, which may include, but are not limited to, costs previously included in the measurement of inventory that has now been sold, unallocated production overheads and abnormal amounts of production costs of inventories. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 99 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_99&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 103 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_103&doctype=Standard -URIDate 2019-03-27 + Details
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