XML 183 R169.htm IDEA: XBRL DOCUMENT
v3.8.0.1

PENSION AND OTHER POST-EMPLOYMENT BENEFITS - Unfunded Pension - Components of pension benefit cost (Details) $ in Millions, Rp in Billions | 12 Months Ended
--- | ---
Dec. 31, 2017 USD ($) | Dec. 31, 2017 IDR (Rp) | Dec. 31, 2016 IDR (Rp) | Dec. 31, 2015 IDR (Rp)
Disclosure of defined benefit plans [line items] |  |  |  |
Net periodic pension benefit cost |  | Rp 2,080 | Rp 1,361 | Rp 759
Defined benefit plan actuarial gain (loss) - net of tax | $ 175 | 2,375 | 2,058 | (368)
Pension benefit cost |  |  |  |
Disclosure of defined benefit plans [line items] |  |  |  |
Net periodic pension benefit cost |  | 1,700 | 1,068 | 443
The company | Unfunded Pension |  |  |  |
Disclosure of defined benefit plans [line items] |  |  |  |
Service costs |  | 51 | 64 | 60
Net interest cost |  | 188 | 215 | 191
Net periodic pension benefit cost |  | 239 | 279 | 251
Experience adjustments |  | 19 | (9) | (30)
Changes in demographic assumptions |  |  | 30 | 50
Changes in financial assumptions |  | 81 | 98 | 167
Defined benefit plan actuarial gain (loss) - net of tax |  | Rp 100 | Rp 119 | Rp 187
Discount rate |  |  |  | 9.00%
The company | Unfunded Pension | Minimum |  |  |  |
Disclosure of defined benefit plans [line items] |  |  |  |
Discount rate | 6.00% | 6.00% | 7.75% |
Rate of compensation increases | 6.10% | 6.10% | 6.10% |
The company | Unfunded Pension | Maximum |  |  |  |
Disclosure of defined benefit plans [line items] |  |  |  |
Discount rate | 6.75% | 6.75% | 8.00% |
Rate of compensation increases | 8.00% | 8.00% | 8.00% |

X
- Definition The discount rate used as the significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2017-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2017-03-01&anchor=para_144&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_ActuarialAssumptionOfDiscountRates
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The expected rate of salary increases used as a significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit plans [member]; Defined benefit obligation, at present value; Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2017-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2017-03-01&anchor=para_144&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfDefinedBenefitPlansLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of other comprehensive income, net of tax, related to gains (losses) on remeasurements of defined benefit plans, which comprise actuarial gains and losses; the return on plan assets, excluding amounts included in net interest on the net defined benefit liability (asset); and any change in the effect of the asset ceiling, excluding amounts included in net interest on the net defined benefit liability (asset). [Refer: Other comprehensive income; Defined benefit plans [member]; Plan assets [member]; Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 91 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_91_a&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_7&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of post-employment benefit expense relating to defined benefit plans. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2017-01-01 -Paragraph 5 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2017-03-01&anchor=para_5&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_PostemploymentBenefitExpenseDefinedBenefitPlans
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of actuarial gain/(loss) arising from changes in demographic assumptions. + References No definition available. + Details
Name: | tlk_DefinedBenefitPlanActuarialGainLossArisingFromChangesInDemographicAssumptions
Namespace Prefix: | tlk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of actuarial (loss)/gain arising from changes in experience. + References No definition available. + Details
Name: | tlk_DefinedBenefitPlanActuarialGainLossArisingFromChangesInExperience
Namespace Prefix: | tlk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of actuarial (loss)/gain arising from changes in financial assumptions. + References No definition available. + Details
Name: | tlk_DefinedBenefitPlanActuarialGainLossArisingFromChangesInFinancialAssumptions
Namespace Prefix: | tlk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of interest expense recognized related to defined benefit plan. + References No definition available. + Details
Name: | tlk_DefinedBenefitPlansInterestExpense
Namespace Prefix: | tlk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of service cost expense recognized related to defined benefit plan. + References No definition available. + Details
Name: | tlk_IfrsDefinedBenefitPlanServiceCost
Namespace Prefix: | tlk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_DefinedBenefitPlansAxis=tlk_DefinedBenefitPensionPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConsolidatedEntitiesAxis=us-gaap_ParentCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_DefinedBenefitPlansAxis=tlk_UnfundedPensionPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |