XML 52 R40.htm IDEA: XBRL DOCUMENT
v3.19.1

Segment Information | 12 Months Ended
--- | ---
Dec. 31, 2018
Text block [abstract] |
Segment Information |
34. | Segment Information
The Group’s operating segments are as follows:
Details |  | Business service
Marketing/Customer |  | Mobile/fixed line telecommunication service and convergence business
Corporate customer business |  | B2B business and others
Finance |  | Credit card business and others
Satellite TV |  | Satellite TV business
Others |  | IT, facility security and global business, and others
Details of each segment for the years ended December 31, 2016, 2017 and 2018, are as follows:
|  | 2016 |
(In millions of Korean won) |  | Operating revenues |  |  | Operating income |  |  | Depreciation and Amortization |
Marketing/Customer |  | ￦ | 16,187,739 |  |  | ￦ | 1,093,377 |  |  | ￦ | 2,870,161 |
Finance |  |  | 3,577,549 |  |  |  | 208,566 |  |  |  | 28,868 |
Satellite TV |  |  | 668,945 |  |  |  | 79,987 |  |  |  | 98,895 |
Others |  |  | 6,308,203 |  |  |  | 40,047 |  |  |  | 339,429 |
|  |  | 26,742,436 |  |  |  | 1,421,977 |  |  |  | 3,337,353 |
Elimination |  |  | (3,578,234 | ) |  |  | (38,873 | ) |  |  | 7,913 |
Consolidated amount |  | ￦ | 23,164,202 |  |  | ￦ | 1,383,104 |  |  | ￦ | 3,345,266 |
|  | 2017 |
(In millions of Korean won) |  | Operating revenues |  |  | Operating Income (loss) |  |  | Depreciation and Amortization |
Marketing/Customer |  | ￦ | 16,242,552 |  |  | ￦ | 1,018,593 |  |  | ￦ | 2,895,930 |
Finance |  |  | 3,637,917 |  |  |  | 205,678 |  |  |  | 28,827 |
Satellite TV |  |  | 685,822 |  |  |  | 75,373 |  |  |  | 99,216 |
Others |  |  | 6,651,552 |  |  |  | (187,090 | ) |  |  | 332,153 |
|  |  | 27,217,843 |  |  |  | 1,112,554 |  |  |  | 3,356,126 |
Elimination |  |  | (3,670,914 | ) |  |  | (43,462 | ) |  |  | 8,376 |
Consolidated amount |  | ￦ | 23,546,929 |  |  | ￦ | 1,069,092 |  |  | ￦ | 3,364,502 |
|  | 2018 |
(In millions of Korean won) |  | Operating revenues |  |  | Operating Income (loss) |  |  | Depreciation and Amortization |
Marketing/Customer |  | ￦ | 14,061,629 |  |  | ￦ | 886,515 |  |  | ￦ | 2,293,809 |
Corporate customer business1 |  |  | 2,509,880 |  |  |  | 208,584 |  |  |  | 546,635 |
Finance |  |  | 3,560,417 |  |  |  | 145,463 |  |  |  | 22,504 |
Satellite TV |  |  | 690,821 |  |  |  | 66,735 |  |  |  | 98,310 |
Others |  |  | 6,349,546 |  |  |  | (154,130 | ) |  |  | 313,511 |
|  |  | 27,172,293 |  |  |  | 1,153,167 |  |  |  | 3,274,769 |
Elimination |  |  | (3,736,243 | ) |  |  | (52,307 | ) |  |  | 6,963 |
Consolidated amount |  | ￦ | 23,436,050 |  |  | ￦ | 1,100,860 |  |  | ￦ | 3,281,732 |
| 1 | The reporting segment of the current period has changed. However, the reporting segment of the prior period has not been restated to reflect the change.
Operating revenues for the year ended December 31, 2016, 2017 and 2018 and non-current assets as at December 31, 2017 and 2018 by geographical regions, are as follows:
(In millions of Korean won) |  | Operating revenues |  | Non-current assets1
Location |  | 2016 |  | 2017 |  | 2018 |  | 2017.12.31 |  | 2018.12.31
Domestic |  | ￦23,069,579 |  | ￦23,481,703 |  | ￦23,376,218 |  | ￦17,246,640 |  | ￦17,426,879
Overseas |  | 94,623 |  | 65,226 |  | 59,832 |  | 137,914 |  | 139,585
Total |  | ￦23,164,202 |  | ￦23,546,929 |  | ￦23,436,050 |  | ￦17,384,554 |  | ￦17,566,464
| 1 | Non-current assets include property, plant and equipment, intangible assets and investment properties.

X
- Definition The entire disclosure for operating segments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2018-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=8&date=2018-03-01&anchor=sect_Disclosure&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory
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