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LONG-TERM INVESTMENTS IN FINANCIAL INSTRUMENTS (Details) Rp / shares in Units, $ / shares in Units, $ in Millions, Rp in Billions |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
May 18, 2021 IDR (Rp) shares | Dec. 31, 2021 IDR (Rp) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 IDR (Rp) | Dec. 31, 2019 IDR (Rp) | Oct. 19, 2021 Rp / shares shares | Oct. 18, 2021 shares | May 18, 2021 USD ($) | Nov. 16, 2020 USD ($) $ / shares
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |
Foreign exchange impact |  | Rp 3,432 | $ 241 | Rp 129 | Rp 58 |  |  |  |
Financial assets |  | 63,793 |  | 38,948 |  |  |  |  |
Long-term investment in financial instruments |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |
Financial assets |  | 13,661 |  | 4,045 |  |  |  |  |
Long-term investment in financial instruments | FVTPL |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |
Financial assets |  | 13,643 |  | 4,025 |  |  |  |  |
Long-term investment in financial instruments | FVTOCI |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |
Financial assets |  | 18 |  | 20 |  |  |  |  |
Telkomsel |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |
Price per share | Rp / shares |  |  |  |  |  | Rp 375 |  |  |
Foreign exchange impact |  | 2,494 |  |  |  |  |  |  |
MDI |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |
Foreign exchange impact |  | 899 |  |  |  |  |  |  |
Convertible bonds | Long-term investment in financial instruments | FVTPL |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |
Financial assets |  | 681 |  | 2,339 |  |  |  |  |
Convertible bonds | Telkomsel | Shares Subscription Agreement [Member] |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |
Number of shares held as investment | shares |  |  |  |  |  | 23,722,133,875 | 89,125 |  |
Convertible bonds | Telkomsel | Converted Shares | Shares Subscription Agreement [Member] |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |
Number of shares subscribed | shares | 29,708 |  |  |  |  |  |  |  |
Financial assets | Rp 2,110 |  |  |  |  |  |  | $ 150 |
Convertible bonds | Telkomsel | Call Options Shares | Shares Subscription Agreement [Member] |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |
Long-term investments in associates | $ |  |  |  |  |  |  |  |  | $ 300
Number of shares subscribed | shares | 59,417 |  |  |  |  |  |  |  |
Financial assets | Rp 4,290 |  |  |  |  |  |  | $ 300 |
PT Aplikasi Karya Anak Bangsa ("AKAB") | Telkomsel |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |
Long-term investments in associates |  |  |  | 2,116 |  |  |  |  | $ 150
Investment in equity | Long-term investment in financial instruments | FVTPL |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |
Financial assets |  | 12,962 |  | 1,686 |  |  |  |  |
Investment in equity | Long-term investment in financial instruments | FVTOCI |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |
Financial assets |  | 18 |  | Rp 20 |  |  |  |  |
Investment in equity | MDI |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |
Long-term investments in associates |  | Rp 1,212 |  |  |  |  |  |  |
AKAB | Preference shares |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |
Price per share | $ / shares |  |  |  |  |  |  |  |  | $ 5,049

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