OPERATING SEGMENT - Reconciliation (Details) $ in Millions, Rp in Billions	12 Months Ended
Dec. 31, 2020 USD ($)	Dec. 31, 2020 IDR (Rp)	Dec. 31, 2019 IDR (Rp)	Dec. 31, 2018 IDR (Rp)
Segment results
Segment results	$ 3,128	Rp 43,958	Rp 43,994	Rp 38,533
Operating Segments
Segment results
Segment results		43,587	41,254	41,706
Adjustments and Eliminations
Segment results
Segment results		371	2,740	(3,173)
Operating loss of operating business		(627)	(599)	(798)
Other eliminations and adjustments		545	1,739	(2,063)
IFRS reconciliation		Rp 453	Rp 1,600	Rp (312)

The profit (loss) from operating activities of the entity. [Refer: Profit (loss)]

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 32
-IssueDate 2020-01-01
-Paragraph IE33
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=32&code=ifrs-tx-2020-en-r&anchor=para_IE33&doctype=Illustrative%20Examples
-URIDate 2020-01-01

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 85
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_85&doctype=Standard
-URIDate 2020-01-01

Name:	ifrs-full_ProfitLossFromOperatingActivities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration