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Loans and borrowings - Summary of Terms and Conditions of Outstanding Loans (Parenthetical) (Detail) - Dec. 31, 2017 ₺ in Thousands, € in Thousands, $ in Thousands	TRY (₺)	USD ($)	EUR (€)
Foreign Currency Loans [member] | Lifecell LLC [member]
Disclosure of detailed information about borrowings [line items]
Deposit amount	₺ 183,483	$ 17,100	€ 26,350

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

Name:	ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of blocked deposits held by the entity in connection with the loan utilized.

+ References

No definition available.

+ Details

Name:	tkc_BlockedDeposits
Namespace Prefix:	tkc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=tkc_ForeignCurrencyLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=tkc_LifecellLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: