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Expenses by Nature - Summary of Expenses by Cost of Sales (Parenthetical) (Detail) - TRY (₺) ₺ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Summary of expenses by nature cost of sales [abstract]
Depreciation and amortization expenses related to financial services	₺ 6,343	₺ 1,677

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- Definition

Depreciation and amortization expense related to financial services.

+ References

No definition available.

+ Details

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Namespace Prefix:	tkc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- Definition

Summary of expenses by nature cost of sales [abstract]

+ References

No definition available.

+ Details

Name:	tkc_SummaryOfExpensesByNatureCostOfSalesAbstract
Namespace Prefix:	tkc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration