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v3.25.1

Operating Expenses - Summary of Operating Expenses (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Profit (loss) [abstract] |  |  |
Employee benefit cost | ₩ 5,628,058 | ₩ 4,556,832 | ₩ 4,495,885
Depreciation | 2,827,518 | 2,723,610 | 2,637,463
Depreciation of right-of-use assets | 410,925 | 402,737 | 396,214
Amortization of intangible assets | 639,268 | 683,784 | 622,202
Commissions | 1,403,381 | 1,264,729 | 1,295,434
Interconnection charges | 410,872 | 436,598 | 479,500
International interconnection fee | 138,807 | 140,433 | 186,253
Purchase of inventories | 3,526,723 | 3,595,345 | 3,656,040
Changes of inventories | (27,947) | (203,071) | (195,046)
Sales commission | 2,258,121 | 2,353,318 | 2,353,909
Service cost | 2,141,856 | 2,229,709 | 2,334,386
Utilities | 555,856 | 544,675 | 368,348
Taxes and dues | 265,305 | 250,651 | 276,962
Rent | 147,607 | 167,576 | 160,848
Insurance premium | 68,443 | 66,737 | 68,245
Installation fee | 164,969 | 174,238 | 150,140
Advertising expenses | 169,189 | 153,750 | 195,519
Allowance for bad debts | 151,486 | 150,549 | 115,358
Card service cost | 3,009,170 | 3,189,376 | 3,127,673
Loss on disposal of property and equipment | 90,373 | 72,710 | 81,415
Loss on disposal of intangible assets | 9,713 | 5,328 | 7,015
Loss on disposal of right-of-use assets | 2,578 | 2,115 | 2,348
Loss on disposal of investments in associates | 17 | 0 | 295
Losses On Disposals Of Investments1 | 7,998 | 0 | 0
Impairment loss on property and equipment | 7,183 | 7,871 | 16,094
Impairment loss on intangible assets | 239,312 | 236,206 | 30,965
Donations | 9,499 | 24,664 | 15,642
Other allowance for bad debts | 26,475 | 34,112 | 17,551
Others | 1,801,660 | 1,902,214 | 1,369,391
Total | ₩ 26,084,415 | ₩ 25,166,796 | ₩ 24,266,049

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- Definition The amount of expense arising from donations and subsidies. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The expense of all forms of consideration given by an entity in exchange for a service rendered by employees or for the termination of employment. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 102 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_102&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 99 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_99&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 104 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_104&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of expense relating to fees and commissions. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 85 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_85&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of impairment loss recognised in profit or loss for property, plant and equipment. [Refer: Impairment loss recognised in profit or loss; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -Clause v -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e_v&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 98 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_98_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of expense arising from purchased insurance. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The losses on the disposal of investments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 98 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_98_d&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of miscellaneous other operating expenses. [Refer: Other operating income (expense)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
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