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TAXATION - Details of the net income tax expense (Details) $ in Millions, Rp in Billions | 12 Months Ended
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Dec. 31, 2017 USD ($) | Dec. 31, 2017 IDR (Rp) | Dec. 31, 2016 IDR (Rp) | Dec. 31, 2015 IDR (Rp)
TAXATION |  |  |  |
Estimated taxable income (loss) of the Company |  | Rp (861) | Rp 1,703 | Rp 552
Total income tax expense – current | $ 837 | 11,357 | 10,738 | 8,365
Net income tax benefit - deferred | (103) | (1,399) | (1,721) | (342)
Net Income Tax Expense | $ 734 | 9,958 | 9,017 | 8,023
The company |  |  |  |
TAXATION |  |  |  |
Corporate income tax |  |  | 340 | 110
Final tax expense |  | 586 | 331 | 91
Total income tax expense – current |  | 586 | 671 | 201
Net income tax benefit - deferred |  | Rp (1,608) | Rp (844) | Rp (38)
Change in tax rate | 5.00% | 5.00% | 5.00% | 5.00%
Threshold percentage of interest owned by public | 40.00% | 40.00% |  |
Threshold number of persons owned shares | 300.00% | 300.00% |  |
Threshold percentage owned by each member | 5.00% | 5.00% |  |
Threshold period to meet prescribed criteria | 183 days | 183 days |  |
Applicable tax rate | 20.00% | 20.00% | 20.00% | 20.00%
The company | Realization of accrual (accrual) of expenses and inventory write-off (provision for inventory obsolescence) |  |  |  |
TAXATION |  |  |  |
Net income tax benefit - deferred |  | Rp 26 | Rp 142 | Rp (135)
The company | Amortization of (addition to) deferred installation fee |  |  |  |
TAXATION |  |  |  |
Net income tax benefit - deferred |  | 1 | (10) | 7
The company | Finance leases |  |  |  |
TAXATION |  |  |  |
Net income tax benefit - deferred |  | 0 | 68 | (47)
The company | Valuation of long-term investments |  |  |  |
TAXATION |  |  |  |
Net income tax benefit - deferred |  |  | (34) | (24)
The company | Depreciation and gain on disposal or sale of property and equipment |  |  |  |
TAXATION |  |  |  |
Net income tax benefit - deferred |  | (1,012) | (825) | 139
The company | Net periodic post-employment benefits costs and provision for employee benefits |  |  |  |
TAXATION |  |  |  |
Net income tax benefit - deferred |  | (235) | (214) | (28)
The company | Trade receivables write-off (provision for impairment of receivables) |  |  |  |
TAXATION |  |  |  |
Net income tax benefit - deferred |  | (206) | 41 | 41
The company | Fiscal loss |  |  |  |
TAXATION |  |  |  |
Net income tax benefit - deferred |  | (172) |  |
The company | Amortization of intangible assets, land rights and others |  |  |  |
TAXATION |  |  |  |
Net income tax benefit - deferred |  | (10) | (12) | 9
Subsidiaries |  |  |  |
TAXATION |  |  |  |
Corporate income tax |  | 10,766 | 10,053 | 8,144
Final tax expense |  | 5 | 14 | 20
Total income tax expense – current |  | 10,771 | 10,067 | 8,164
Net income tax benefit - deferred |  | Rp 209 | Rp (877) | Rp (304)
Applicable tax rate | 25.00% | 25.00% | 25.00% | 25.00%
Telkomsel |  |  |  |
TAXATION |  |  |  |
Net income tax benefit - deferred |  | Rp 25 | Rp (813) | Rp (255)
Telkomsel | Trade receivables write-off (provision for impairment of receivables) |  |  |  |
TAXATION |  |  |  |
Net income tax benefit - deferred |  | (41) | (5) | (9)
Telkomsel | Charges from leasing transactions |  |  |  |
TAXATION |  |  |  |
Net income tax benefit - deferred |  | 177 | 164 | 131
Telkomsel | License amortization |  |  |  |
TAXATION |  |  |  |
Net income tax benefit - deferred |  | 12 | (4) | (9)
Telkomsel | Accounts receivable - Government |  |  |  |
TAXATION |  |  |  |
Net income tax benefit - deferred |  |  |  | 0
Telkomsel | Provision for employee benefits |  |  |  |
TAXATION |  |  |  |
Net income tax benefit - deferred |  | (68) | (55) | (18)
Telkomsel | Depreciation of property and equipment |  |  |  |
TAXATION |  |  |  |
Net income tax benefit - deferred |  | (55) | (913) | (350)
Subsidiaries - others |  |  |  |
TAXATION |  |  |  |
Net income tax benefit - deferred |  | Rp 184 | Rp (64) | Rp (49)

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