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CONSOLIDATED STATEMENTS OF PROFIT OR LOSS AND OTHER COMPREHENSIVE INCOME (Parenthetical) - item | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Income Statement [Abstract] |  |  |
Number of Series B Shares in each American Depository Shares After Stock Split | 100 | 100 | 100

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- Definition Number of series B shares in each American Depository Shares after stock split. + References No definition available. + Details
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Namespace Prefix: | tlk_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration