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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

Name:	tlk_NumberOfSeriesBSharesInEachAmericanDepositorySharesAfterStockSplit
Namespace Prefix:	tlk_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

Name:	us-gaap_IncomeStatementAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration