XML 149 R132.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Cash and Cash Equivalents - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Cash and cash equivalents1 [line items] |  |
Average maturity of time deposits | 32 days | 49 days
TL [member] |  |
Cash and cash equivalents1 [line items] |  |
Effective tax rate | 14.30% | 11.00%
USD [member] |  |
Cash and cash equivalents1 [line items] |  |
Effective tax rate | 5.80% | 3.60%
EUR [member] |  |
Cash and cash equivalents1 [line items] |  |
Effective tax rate | 2.20% | 2.00%

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- Definition The tax expense (income) divided by the accounting profit. [Refer: Accounting profit] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2017-01-01 -Paragraph 81 -Subparagraph c -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=12&date=2017-03-01&anchor=para_81_c_ii&doctype=Standard -URIDate 2017-03-09 + Details
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Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Average maturity of time deposits. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Cash and cash equivalents1 [line items]. + References No definition available. + Details
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Namespace Prefix: | tkc_
Data Type: | xbrli:stringItemType
Balance Type: | na
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |