OPERATING SEGMENT - Geographic information: External Revenues (Details) $ in Millions, Rp in Billions	12 Months Ended
Dec. 31, 2017 USD ($)	Dec. 31, 2017 IDR (Rp)	Dec. 31, 2016 IDR (Rp)	Dec. 31, 2015 IDR (Rp)
Geographic information:
REVENUES	$ 9,453	Rp 128,256	Rp 116,333	Rp 102,470
Indonesia
Geographic information:
REVENUES		125,970	114,093	100,456
Foreign countries
Geographic information:
REVENUES		Rp 2,286	Rp 2,240	Rp 2,014

The amount of revenue arising from the rendering of telecommunication services. [Refer: Revenue]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2018-01-01
-Name IAS
-Number 18
-IssueDate 2017-01-01
-Paragraph 35
-Subparagraph b
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=18&date=2017-03-02&anchor=para_35_b_ii&doctype=Standard&book=B
-URIDate 2017-03-09

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_112_c&doctype=Standard
-URIDate 2017-03-09

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration