XML 45 R34.htm IDEA: XBRL DOCUMENT
v3.22.1

Operating Expenses | 12 Months Ended
--- | ---
Dec. 31, 2021
Text block [abstract] |
Operating Expenses |
28. | Operating Expenses
Operating expenses for the years ended December 31 , 2019 , 2020 and 2021 , are as follows:
(In millions of Korean won) |  | 2019 |  |  | 2020 |  |  | 2021 |  |
Salaries and wages |  | ￦ | 3,974,233 |  |  | ￦ | 4,123,680 |  |  | ￦ | 4,215,810 |  |
Depreciation |  |  | 2,530,252 |  |  |  | 2,605,128 |  |  |  | 2,605,594 |  |
Depreciation of right-of-use assets |  |  | 442,627 |  |  |  | 404,175 |  |  |  | 398,716 |  |
Amortization of intangible assets |  |  | 656,611 |  |  |  | 624,982 |  |  |  | 603,327 |  |
Commissions |  |  | 1,115,477 |  |  |  | 965,461 |  |  |  | 1,125,944 |  |
Interconnection charges |  |  | 534,025 |  |  |  | 500,081 |  |  |  | 507,567 |  |
International interconnection fee |  |  | 240,254 |  |  |  | 172,529 |  |  |  | 192,008 |  |
Purchase of inventories |  |  | 4,453,820 |  |  |  | 3,681,801 |  |  |  | 3,753,792 |  |
Changes of inventories |  |  | 282,957 |  |  |  | 257,041 |  |  |  | 20,491 |  |
Sales commission |  |  | 2,315,731 |  |  |  | 2,337,127 |  |  |  | 2,343,375 |  |
Service cost |  |  | 1,610,261 |  |  |  | 2,102,875 |  |  |  | 2,296,324 |  |
Utilities |  |  | 332,816 |  |  |  | 360,797 |  |  |  | 364,373 |  |
Taxes and dues |  |  | 277,742 |  |  |  | 283,197 |  |  |  | 268,651 |  |
Rent |  |  | 193,357 |  |  |  | 136,355 |  |  |  | 123,246 |  |
Insurance premium |  |  | 82,404 |  |  |  | 71,018 |  |  |  | 66,717 |  |
Installation fee |  |  | 155,178 |  |  |  | 132,117 |  |  |  | 154,542 |  |
Advertising expenses |  |  | 150,166 |  |  |  | 132,466 |  |  |  | 171,400 |  |
Research and development expenses |  |  | 165,028 |  |  |  | 156,940 |  |  |  | 168,969 |  |
Card service cost |  |  | 3,066,766 |  |  |  | 2,941,669 |  |  |  | 3,114,047 |  |
Loss on disposal of property and equipment |  |  | 71,233 |  |  |  | 75,879 |  |  |  | 71,417 |  |
Loss on disposal of intangible assets |  |  | 5,965 |  |  |  | 3,207 |  |  |  | 3,885 |  |
Loss on disposal of right-of-use assets |  |  | 4,502 |  |  |  | 7,844 |  |  |  | 11,457 |  |
Direct cost of government subsidies |  |  | 23,248 |  |  |  | 31,447 |  |  |  | 42,732 |  |
Loss on disposal of investments in subsidiaries |  |  | 7,586 |  |  |  | — |  |  |  | 13,727 |  |
Impairment loss on property and equipment |  |  | 43,260 |  |  |  | 79,775 |  |  |  | 2,115 |  |
Impairment loss on intangible assets |  |  | 61,899 |  |  |  | 211,637 |  |  |  | 3,747 |  |
Donations |  |  | 98,659 |  |  |  | 20,745 |  |  |  | 10,981 |  |
Other allowance for bad debts |  |  | 26,372 |  |  |  | 51,333 |  |  |  | 28,066 |  |
Others |  |  | 949,790 |  |  |  | 947,008 |  |  |  | 823,242 |  |
Total |  | ￦ | 23,872,219 |  |  | ￦ | 23,418,314 |  |  | ￦ | 23,506,262 |  |
Details of salaries and wages for the years ended December 31, 2019, 2020 and 2021, are as follows:
(In millions of Korean won) |  | 2019 |  |  | 2020 |  |  | 2021 |
Short-term employee benefits |  | ￦ | 3,663,337 |  |  | ￦ | 3,770,786 |  |  | ￦ | 3,837,359 |
Post-employment benefits(Defined benefit plan) |  |  | 240,310 |  |  |  | 239,102 |  |  |  | 236,831 |
Post-employment benefits(Defined contribution plan) |  |  | 57,170 |  |  |  | 61,912 |  |  |  | 71,068 |
Share-based payment |  |  | 6,398 |  |  |  | 28,604 |  |  |  | 47,415 |
Others |  |  | 7,018 |  |  |  | 23,276 |  |  |  | 23,137 |
Total |  | ￦ | 3,974,233 |  |  | ￦ | 4,123,680 |  |  | ￦ | 4,215,810 |

X
- Definition The disclosure of expenses. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_10_e&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_DisclosureOfExpensesExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Text block [abstract] + References No definition available. + Details
Name: | kt_TextBlockAbstract
Namespace Prefix: | kt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration