XML 60 R45.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Events after Reporting Period | 12 Months Ended
--- | ---
Dec. 31, 2017
Text block1 [abstract] |
Events after Reporting Period |
39. | Events after Reporting Period
Subsequent to the reporting period, public bonds issued are as follow:
|  | December 31, 2017 |
(in millions of Korean won) |  | Issue date |  |  | Carrying amount |  |  | Interest rate |  |  | Redemption date |
The 190-1st Public bond |  |  | 2018.01.30 |  |  |  | 110,000 |  |  |  | 2.55 | % |  |  | 2021.01.29 |
The 190-2nd Public bond |  |  | 2018.01.30 |  |  |  | 150,000 |  |  |  | 2.75 | % |  |  | 2023.01.30 |
The 190-3rd Public bond |  |  | 2018.01.30 |  |  |  | 170,000 |  |  |  | 2.95 | % |  |  | 2028.01.30 |
The 190-4th Public bond |  |  | 2018.01.30 |  |  |  | 70,000 |  |  |  | 2.93 | % |  |  | 2038.01.30 |
In accordance with a resolution of the board of directors on April 9, 2018, the Group decided to take over unmanned security business of SG Safety Corporation for the consideration of ￦28,000 million, with May 31, 2018 as the acquisition date. The Group has signed the acquisition contract on April 10, 2018.

X
- Definition The entire disclosure for events after the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 10 -IssueDate 2017-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=10&date=2017-03-01&anchor=sect_Disclosure&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Text block1 [abstract] + References No definition available. + Details
Name: | kt_TextBlock1Abstract
Namespace Prefix: | kt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration