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LSA PROVISIONS (Details) $ in Millions, Rp in Billions	12 Months Ended
	Dec. 31, 2019 IDR (Rp)	Dec. 31, 2018 IDR (Rp)	Dec. 31, 2017 IDR (Rp)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 IDR (Rp)
LSA PROVISIONS
Long service award provisions		Rp 852		$ 77	Rp 1,066
Long service award expense	Rp 290	Rp 161	Rp 255

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- Definition

NA

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No definition available.

+ Details

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

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- Definition

The amount of expenses relating to long service awards.

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No definition available.

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

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- Definition

The amount of non-current provisions for long service awards.

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No definition available.

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Name:	tlk_NoncurrentLongServiceAwardProvisions
Namespace Prefix:	tlk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant