XML 127 R112.htm IDEA: XBRL DOCUMENT v3.8.0.1

Property, Plant and Equipment - Summary of the Details of Property, Plant and Equipment Provided (Detail) - KRW (₩) ₩ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about property, plant and equipment [line items]
Related amount	₩ 6,683,662	₩ 8,120,791
Land and buildings [member]
Disclosure of detailed information about property, plant and equipment [line items]
Carrying amount	13,115	13,337
Secured amount	₩ 15,995	₩ 16,009
Related line item	Borrowings	Borrowings
Related amount	₩ 2,730	₩ 11,540
Secured party	Standard Chartered Bank Korea Development Bank	Standard Chartered Bank Korea Development Bank
Others [member]
Disclosure of detailed information about property, plant and equipment [line items]
Carrying amount	₩ 53,757	₩ 55,951
Secured amount	38,570	43,506
Related amount	₩ 16,071	₩ 25,379
Secured party	Shinhan Bank	Shinhan Bank

X

- Definition

The amount of outstanding funds that the entity is obligated to repay.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_55&doctype=Standard
-URIDate 2017-03-09

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X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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X

- Definition

The amount of property, plant and equipment pledged as security for liabilities. [Refer: Property, plant and equipment]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 16
-IssueDate 2017-01-01
-Paragraph 74
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_74_a&doctype=Standard
-URIDate 2017-03-09

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- Definition

Related amount description in property plant and equipment

+ References

No definition available.

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- Definition

Secured amount in property plan and equipment.

+ References

No definition available.

+ Details

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Namespace Prefix:	kt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Secured party.

+ References

No definition available.

+ Details

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X

- Details

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