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PENSION AND OTHER POST-EMPLOYMENT BENEFITS - Telkomsel (Details) - Telkomsel - IDR (Rp) Rp in Billions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2004
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Employer contributions | Rp 207 | Rp 125 |
Benefits paid by employer | (207) | (125) |
Pension benefit cost |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Employer contributions | 207 | 125 |
Pension benefit obligations at beginning of year | 1,541 | 1,839 |
Actuarial (gain) losses recognized in OCI | (614) | 583 |
Return on plan assets (excluding amount included in net interest expense) | 53 | (68) |
Benefits paid by employer | (207) | (125) |
Pension benefit obligations at end of year | 2,209 | 1,541 |
Pension benefit cost | Until 2004 |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Percentage of participating employees contribution |  |  | 5.00%
Pension benefit cost | Present value of the defined benefit obligations |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Pension benefit obligations at beginning of year | 2,734 | 2,928 |
Service costs | 187 | 213 |
Interest income | 224 | 203 |
Actuarial (gain) losses recognized in OCI | 614 | (583) |
Benefits paid | (21) | (27) |
Pension benefit obligations at end of year | 3,738 | 2,734 |
Pension benefit cost | Plan assets |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Employer contributions | (207) | (125) |
Pension benefit obligations at beginning of year | 1,193 | 1,089 |
Interest income | (97) | (74) |
Return on plan assets (excluding amount included in net interest expense) | 53 | (68) |
Benefits paid by employer | 207 | 125 |
Benefits paid | 21 | 27 |
Pension benefit obligations at end of year | Rp 1,529 | Rp 1,193 |

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- Definition The increase (decrease) in the net defined benefit liability (asset) resulting from employee service in the current period. [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 141 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_141_a&doctype=Standard -URIDate 2019-03-27 + Details
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- 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
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- Definition The increase (decrease) in the net defined benefit liability (asset) resulting from the passage of time. [Refer: Interest expense; Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 141 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_141_b&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of deficit or surplus in a defined benefit plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 140 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_140_a&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The decrease (increase) in the net defined benefit liability (asset) resulting from payments from the plan. [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 141 -Subparagraph g -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_141_g&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The decrease (increase) in the net defined benefit liability (asset) resulting from the return on plan assets, excluding amounts included in interest income or expense. The return on plans assets is interest, dividends and other revenue derived from the plan assets, together with realised and unrealised gains or losses on the plan assets, less any costs of managing plan assets and less any tax payable by the plan itself, other than tax included in the actuarial assumptions used to measure the present value of the defined benefit obligation. [Refer: Plan assets [member]; Net defined benefit liability (asset); Actuarial assumptions [member]; Interest expense (income), net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 141 -Subparagraph c -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_141_c_i&doctype=Standard -URIDate 2019-03-27 + Details
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