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PENSION AND OTHER POST-EMPLOYMENT BENEFITS - Additional pension benefit obligation (Details) - Defined Contribution Other Benefit Program - IDR (Rp)
Rp in Thousands
Sep. 30, 2022
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of defined benefit plans [line items]        
Threshold fund adequacy ratio 102.00%      
Employer's contribution Rp 120      
Discount rate   7.00% 6.75% 7.25%