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Employee Benefits - Summary of Movement in Reserve for Employee Termination Benefits (Detail) - TRY (₺) ₺ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Disclosure of defined benefit plans [abstract]
Employee termination benefits,beginning balance	₺ 120,755	₺ 74,435
Service cost	32,696	25,933
Remeasurements	3,738	34,532
Interest expense	13,877	8,361
Benefit payments	(21,617)	(22,506)
Employee termination benefits,ending balance	₺ 149,449	₺ 120,755

X

- Definition

The increase (decrease) in the net defined benefit liability (asset) resulting from employee service in the current period. [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2017-01-01
-Paragraph 141
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2017-03-01&anchor=para_141_a&doctype=Standard
-URIDate 2017-03-09

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
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X

- Definition

The increase (decrease) in the net defined benefit liability (asset) resulting from the passage of time. [Refer: Interest expense; Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2017-01-01
-Paragraph 141
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2017-03-01&anchor=para_141_b&doctype=Standard
-URIDate 2017-03-09

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Namespace Prefix:	ifrs-full_
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X

- Definition

The decrease (increase) in the net defined benefit liability (asset) resulting from payments from the plan. [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2017-01-01
-Paragraph 141
-Subparagraph g
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2017-03-01&anchor=para_141_g&doctype=Standard
-URIDate 2017-03-09

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Period Type:	duration

X

- Definition

Employee termination benefits.

+ References

No definition available.

+ Details

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Namespace Prefix:	tkc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Remeasurements of employee termination benefit losses.

+ References

No definition available.

+ Details

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Period Type:	duration