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CONTRACT COSTS (Details) Rp in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019 IDR (Rp)	Dec. 31, 2018 IDR (Rp)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 IDR (Rp)
Movement of contract costs
Beginning balance	Rp 1,244,000	Rp 1,096,000
Addition during the year	975,000	1,304,000
Amortisation during the year	(1,034,000)	(1,156,000)
Ending balance	1,185,000	1,244,000
Short term portion		(924,000)	$ (38)	Rp (534,000)
Long term portion		320,000	$ 47	651,000
Provision for impairment of contract costs		0		0
Cost to obtain contracts
Movement of contract costs
Beginning balance	405,000	193,000
Addition during the year	372,000	274,000
Amortisation during the year	(81,000)	(62,000)
Ending balance	696,000	405,000
Short term portion		(85,000)		(106,000)
Long term portion		320,000		590,000
Cost to fulfill
Movement of contract costs
Beginning balance	839,000	903,000
Addition during the year	603,000	1,030,000
Amortisation during the year	(953,000)	(1,094,000)
Ending balance	Rp 489,000	839,000
Short term portion		Rp (839,000)		(428,000)
Long term portion				Rp 61,000

X

- Definition

The amount of amortisation for assets recognised from the costs incurred to obtain or fulfil contracts with customers. [Refer: Assets recognised from costs to obtain or fulfil contracts with customers; Amortisation expense]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2019-01-01
-Paragraph 128
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2019-en-r&anchor=para_128_b&doctype=Standard
-URIDate 2019-03-27

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X

- Definition

The amount of assets recognised from the costs to obtain or fulfil contracts with customers. The costs to obtain a contract with a customer are the incremental costs of obtaining the contract that the entity would not have incurred if the contract had not been obtained. The costs to fulfil a contract with a customer are the costs that relate directly to a contract or to an anticipated contract that the entity can specifically identify.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2019-01-01
-Paragraph 128
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2019-en-r&anchor=para_128_a&doctype=Standard
-URIDate 2019-03-27

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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X

- Definition

The amount of current assets recognised from the costs to obtain or fulfil contracts with customers.

+ References

No definition available.

+ Details

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X

- Definition

The amount of non current assets recognised from the costs to obtain or fulfil contracts with customers.

+ References

No definition available.

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X

- Definition

The amount of increase in contract cost.

+ References

No definition available.

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X

- Definition

The amount of provision for the impairment of contract cost.

+ References

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