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TREASURY STOCK - Movements in treasury stock (Details) - IDR (Rp) Rp in Billions |  | 12 Months Ended
--- | --- | ---
Apr. 27, 2018 | Dec. 31, 2018 | Dec. 31, 2017
Number of shares |  |  |
Beginning balance, Shares |  | 1,737,779,800 | 1,737,779,800
Sale of treasury stock, Shares | (1,737,779,800) | (1,737,779,800) |
Ending balance, Shares |  |  | 1,737,779,800
Treasury stock, Percentage |  |  |
Beginning balance, Percentage |  | 1.72% | 1.72%
Sale of treasury stock, Percentage |  | (1.72%) |
Ending balance, Percentage |  |  | 1.72%
Treasury stock, Value |  |  |
Beginning balance, Value |  | Rp 2,541 | Rp 2,541
Sale of treasury stock, Value | Rp (2,541) | Rp (2,541) |
Ending balance, Value |  |  | Rp 2,541

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