XML 129 R117.htm IDEA: XBRL DOCUMENT v3.21.1

Assets Held for Sale - Summary of Assets Held for Sale (Detail) ₩ in Millions	Dec. 31, 2020 KRW (₩)
Noncurrent assets or disposal groups classified as held for sale or as held for distribution to owners [line items]
Non-current assets held for sale	₩ 1,198
Land [member]
Noncurrent assets or disposal groups classified as held for sale or as held for distribution to owners [line items]
Non-current assets held for sale	172
Buildings And Other [Member]
Noncurrent assets or disposal groups classified as held for sale or as held for distribution to owners [line items]
Non-current assets held for sale	₩ 1,026

X

- Definition

The amount of non-current assets or disposal groups classified as held for sale or as held for distribution to owners. [Refer: Non-current assets or disposal groups classified as held for distribution to owners; Non-current assets or disposal groups classified as held for sale]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 54
-Subparagraph j
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_54_j&doctype=Standard
-URIDate 2020-01-01

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Noncurrent assets or disposal groups classified as held for sale or as held for distribution to owners line items.

+ References

No definition available.

+ Details

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Namespace Prefix:	kt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=ifrs-full_LandMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=kt_BuildingsAndOtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: