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LONG-TERM LOANS AND OTHER BORROWINGS - Other borrowings (Details) $ in Millions, Rp in Billions | Dec. 31, 2018 USD ($) | Dec. 31, 2018 IDR (Rp) | Dec. 31, 2017 IDR (Rp)
--- | --- | --- | ---
Disclosure of detailed information about borrowings [line items] |  |  |
Current maturities |  | Rp (6,296) | Rp (5,209)
Long-term portion | $ 2,347 | 33,743 | 27,974
PT Sarana Multi Infrastruktur |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Total loans and other borrowings |  | 2,250 | 1,300
Unamortized debt issuance cost |  | (6) | (5)
Total loans and other borrowings |  | 2,244 | 1,295
Current maturities |  | (294) | (99)
Long-term portion |  | Rp 1,950 | Rp 1,196

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