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OTHER NON-CURRENT ASSETS - Lease agreement and deferred charges (Details) - IDR (Rp) Rp in Billions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
OTHER NON-CURRENT ASSETS
Total amortization of deferred charges	Rp 60	Rp 56	Rp 46

X

- Definition

n/a

+ References

No definition available.

+ Details

Name:	tlk_AdvancesAndOtherNonCurrentAssetsAbstract
Namespace Prefix:	tlk_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of amortization of deferred charges applied against earnings during the period.

+ References

No definition available.

+ Details

Name:	tlk_IfrsAmortizationOfDeferredCharges
Namespace Prefix:	tlk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration