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PROPERTY AND EQUIPMENT - Gain on disposal or sale of property and equipment (Details) - IDR (Rp)
Rp in Billions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
PROPERTY AND EQUIPMENT.      
Proceeds from sale of property and equipment Rp 1,367 Rp 765 Rp 733
Net book value (1,009) (152) (8)
Gain on disposal or sale of property and equipment Rp 358 Rp 613 Rp 725