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CONTRACT COSTS (Details) Rp in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018 IDR (Rp)	Dec. 31, 2018 USD ($)	Dec. 31, 2018 IDR (Rp)	Dec. 31, 2017 IDR (Rp)
Movement of contract costs
Beginning balance	Rp 1,096,000
Amortisation during the year	(1,156,000)
Addition current year	1,304,000
Ending balance	1,244,000
Short term portion		$ (64)	Rp (924,000)
Long term portion		$ 22	320,000
Provision for impairment of contract costs			0	Rp 0
Cost to obtain contracts
Movement of contract costs
Beginning balance	193,000
Amortisation during the year	(62,000)
Addition current year	274,000
Ending balance	405,000
Short term portion			(85,000)
Long term portion			320,000
Cost to fulfill
Movement of contract costs
Beginning balance	903,000
Amortisation during the year	(1,094,000)
Addition current year	1,030,000
Ending balance	Rp 839,000
Short term portion			Rp (839,000)

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 2018-01-01
-Paragraph 128
-Subparagraph b
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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 2018-01-01
-Paragraph 128
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=15&date=2018-03-01&anchor=para_128_a&doctype=Standard
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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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No definition available.

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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.

+ Details

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X

- Definition

The amount of increase in contract cost.

+ References

No definition available.

+ Details

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X

- Definition

The amount of provision for the impairment of contract cost.

+ References

No definition available.

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