The decrease (increase) in net defined benefit liability (asset) resulting from contributions to a defined benefit plan by the employer. [Refer: Net defined benefit liability (asset); Defined benefit plans [member]]

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The decrease (increase) in the net defined benefit liability (asset) resulting from contributions to a defined benefit plan by plan participants. [Refer: Net defined benefit liability (asset); Defined benefit plans [member]]

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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

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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.

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No definition available.

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- Definition

The amount of employer contributions to retirement benefit plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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The decrease (increase) in a net defined benefit liability (asset) resulting from the remeasurement of that net defined benefit liability (asset). [Refer: Net defined benefit liability (asset)]

+ References

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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
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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
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The decrease (increase) in the net defined benefit liability (asset) resulting from payments from the plan. [Refer: Net defined benefit liability (asset)]

+ References

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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

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- Definition

The amount of additional welfare benefits.

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No definition available.

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The effect on the net defined benefit liability (asset) of expenses related to defined benefit plans that the entity classifies as being administrative.

+ References

No definition available.

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The percentage of employees contribution to defined benefit plan.

+ References

No definition available.

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PENSION AND OTHER POST-EMPLOYMENT BENEFITS - Pension benefit cost (Details) - IDR (Rp) Rp in Billions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Mar. 01, 2003	Feb. 28, 2003
Disclosure of net defined benefit liability (asset) [line items]
Employer's contributions	Rp 205	Rp 233
Funded pension \| The company
Disclosure of net defined benefit liability (asset) [line items]
Percentage of participating employees contribution			18.00%	8.40%
Pension benefit obligations at beginning of year	(2,338)
Return on plan assets (excluding amount included in net interest expense)	201	(398)
Employer's contributions	205	233
Additional welfare benefits	80
Benefits paid by employer	(80)
Pension benefit obligations at end of year	(5,557)	(2,338)
Funded pension \| Present value of the defined benefit obligations \| The company
Disclosure of net defined benefit liability (asset) [line items]
Pension benefit obligations at beginning of year	22,061	20,121
Service costs	260	259
Interest income	1,544	1,599
Pension plan participants’ contributions	27	33
Actuarial losses recognized in OCI	2,741	1,514
Pension benefits paid	(1,530)	(1,465)
Additional welfare benefits	80
Benefits paid by employer	(80)
Pension benefit obligations at end of year	25,103	22,061
Funded pension \| Plan assets \| The company
Disclosure of net defined benefit liability (asset) [line items]
Pension benefit obligations at beginning of year	(19,723)	(19,064)
Interest income	(1,383)	(1,524)
Return on plan assets (excluding amount included in net interest expense)	(201)	398
Pension plan participants’ contributions	(27)	(32)
Pension benefits paid	1,530	1,465
Plan administration costs	(61)	(63)
Pension benefit obligations at end of year	Rp (19,546)	Rp (19,723)