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PENSION AND OTHER POST-EMPLOYMENT BENEFITS - Unfunded Pension (Details) - IDR (Rp) Rp in Billions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disclosure of defined benefit plans [line items]
Pension benefit obligations at beginning of year	Rp 8,509	Rp 9,717
Service costs	657	504
Interest income	595	607
Benefits paid by employer	(1,639)	(719)
Pension benefit obligations at end of year	9,862	8,509
The company | Unfunded Pension
Disclosure of defined benefit plans [line items]
Employer's contribution	Rp 50	Rp 48
Pre retirement employees inactiveness period	6 months
Retirement age	56 years

X

- Definition

The retirement age used as a 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
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- Definition

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]]

+ References

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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

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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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

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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

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The amount of contribution to the plan by employer under defined contribution plan.

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