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OPERATING SEGMENT - Geographic information: Non-current operating assets (Details) - IDR (Rp)
Rp in Billions
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Geographic information:      
Non-current operating assets Rp 133,402 Rp 117,319 Rp 106,511
Indonesia      
Geographic information:      
Non-current operating assets 130,169 114,948 105,116
Foreign countries      
Geographic information:      
Non-current operating assets Rp 3,233 Rp 2,371 Rp 1,395