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LONG-TERM INVESTMENTS - Statements of financial position - Other Information (Details) Rp / shares in Units, $ in Millions, Rp in Billions |  |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 18, 2014 IDR (Rp) | Apr. 29, 2014 IDR (Rp) | Dec. 31, 2018 IDR (Rp) | Dec. 31, 2017 IDR (Rp) Rp / shares | Dec. 31, 2018 USD ($) | Dec. 31, 2018 IDR (Rp) Rp / shares | Dec. 31, 2016 IDR (Rp) | Dec. 31, 2013 | May 31, 2013 Rp / shares
LONG-TERM INVESTMENTS |  |  |  |  |  |  |  |  |
Price per share | Rp / shares |  |  |  |  |  |  |  |  | Rp 10,714
Assets |  |  |  | Rp 198,185 | $ 14,316 | Rp 205,900 |  |  |
Liabilities |  |  |  | Rp (86,354) | $ (6,181) | (88,894) |  |  |
Proportionate share of net assets percentage |  |  | 24.00% | 24.00% |  |  |  |  |
Carrying amount of long-term investment |  |  |  | Rp 1,839 |  | 1,953 | Rp 1,789 |  |
Indonusa |  |  |  |  |  |  |  |  |
LONG-TERM INVESTMENTS |  |  |  |  |  |  |  |  |
Percentage of ownership |  |  | 15.67% |  |  |  |  |  |
Indonusa |  |  |  |  |  |  |  |  |
LONG-TERM INVESTMENTS |  |  |  |  |  |  |  |  |
Increase of issued and fully paid capital |  | Rp 80 |  |  |  |  |  |  |
Metra | Indonusa |  |  |  |  |  |  |  |  |
LONG-TERM INVESTMENTS |  |  |  |  |  |  |  |  |
Percentage of ownership |  |  | 4.33% |  |  |  |  |  |
Tiphone |  |  |  |  |  |  |  |  |
LONG-TERM INVESTMENTS |  |  |  |  |  |  |  |  |
Percentage of ownership |  |  | 24.00% | 24.00% |  |  |  |  |
Purchase of interest in associates | Rp 1,395 |  |  |  |  |  |  |  |
Fair value of the investment |  |  |  | Rp 1,755 |  | Rp 1,649 |  |  |
Price per share | Rp / shares |  |  |  | Rp 1,000 |  | Rp 940 |  |  |
Assets |  |  |  | Rp 9,078 |  | Rp 8,507 |  |  |
Liabilities |  |  |  | (5,362) |  | (4,528) |  |  |
Equity (deficit) |  |  |  | 3,716 |  | 3,979 |  |  |
Group’s proportionate share of net assets (24.00% in 2017 and 2018) |  |  |  | 892 |  | 955 |  |  |
Goodwill |  |  |  | 647 |  | 647 |  |  |
Carrying amount of long-term investment |  |  |  | Rp 1,539 |  | 1,602 | 1,488 |  |
Percentage of ownership interest acquired | 25.00% |  |  |  |  |  |  |  |
Indonusa |  |  |  |  |  |  |  |  |
LONG-TERM INVESTMENTS |  |  |  |  |  |  |  |  |
Percentage of ownership |  |  | 20.00% | 20.00% |  |  |  |  |
Equity (deficit) |  |  |  | Rp (332) |  | (110) |  |  |
Carrying amount of long-term investment |  |  |  | Rp 221 |  | 210 | 221 |  |
Percentage of ownership interest sold |  |  |  |  |  |  |  | 80.00% |
Teltranet |  |  |  |  |  |  |  |  |
LONG-TERM INVESTMENTS |  |  |  |  |  |  |  |  |
Percentage of ownership |  |  | 51.00% | 51.00% |  |  |  |  |
Equity (deficit) |  |  |  | Rp 36 |  | (22) |  |  |
Carrying amount of long-term investment |  |  |  | 18 |  | 0 | Rp 38 |  |
Unrecognized share of losses |  |  | Rp 11 |  |  |  |  |  |
Others |  |  |  |  |  |  |  |  |
LONG-TERM INVESTMENTS |  |  |  |  |  |  |  |  |
Equity (deficit) |  |  |  | (1,810) |  | (1,703) |  |  |
Carrying amount of long-term investment |  |  |  | Rp 4 |  | 83 |  |  |
Cumulative unrecognized share of losses |  |  |  |  |  | Rp 263 |  |  |

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