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Trade Receivables and Accrued Income - Additional Information (Detail) - TRY (₺) ₺ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Trade Receivables And Accrued Income [line items]
Letters of guarantee received	₺ 332,180	₺ 174,975
Handset Campaigns [Member]
Trade Receivables And Accrued Income [line items]
Non-current undue assigned contracted receivables	116,462	115,001
Trade receivables [member]
Trade Receivables And Accrued Income [line items]
Allowance for doubtful debts related to outstanding balances	620,247	728,830
Contracted receivables [member]
Trade Receivables And Accrued Income [line items]
Non-current undue assigned contracted receivables	₺ 148,159	₺ 115,001

X

- Definition

The amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2021-01-01
-Name IFRS
-Number 7
-IssueDate 2019-01-01
-Paragraph 16
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_16&doctype=Standard&book=b
-URIDate 2019-03-27

+ Details

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

X

- Definition

The amount of non-current receivables from contracts with customers. [Refer: Receivables from contracts with customers]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2019-01-01
-Paragraph 105
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2019-en-r&anchor=para_105&doctype=Standard
-URIDate 2019-03-27

+ Details

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

X

- Definition

The amount of letters of guarantee received with respect to the accounts and checks receivable.

+ References

No definition available.

+ Details

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

X

- Definition

Trade receivables and accrued income [line items]

+ References

No definition available.

+ Details

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

X

- Details

Name:	tkc_ProductAndService1Axis=tkc_HandsetCampaignsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=ifrs-full_TradeReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=tkc_ContractedReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: