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PENSION AND OTHER POST-EMPLOYMENT BENEFITS - Maturity (Details) - IDR (Rp) Rp in Billions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Post-employment health care benefit cost |  |
Disclosure of defined benefit plans [line items] |  |
Weighted average duration of DBO | 14 years 1 month 17 days | 15 years 1 month 20 days
Post-employment health care benefit cost | Within next 10 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | Rp 5,959 | Rp 5,649
Post-employment health care benefit cost | Within 10-20 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | 6,697 | 6,778
Post-employment health care benefit cost | Within 20-30 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | 5,117 | 5,575
Post-employment health care benefit cost | Within 30-40 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | 2,025 | 2,479
Post-employment health care benefit cost | Within 40-50 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | 259 | 398
Post-employment health care benefit cost | Within 50-60 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | Rp 1 | Rp 6
Other post-employment benefit cost |  |
Disclosure of defined benefit plans [line items] |  |
Weighted average duration of DBO | 4 years 10 months 17 days | 7 years 2 months 15 days
Other post-employment benefit cost | Within next 10 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | Rp 357 | Rp 417
Other post-employment benefit cost | Within 10-20 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | 121 | 102
Other post-employment benefit cost | Within 20-30 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | 92 | 78
Other post-employment benefit cost | Within 30-40 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | 5 | Rp 4
Periodic pension benefit cost | Telkomsel |  |
Disclosure of defined benefit plans [line items] |  |
Weighted average duration of DBO |  | 11 years
Periodic pension benefit cost | Telkomsel | Within next 10 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | 4,224 | Rp 3,795
Periodic pension benefit cost | Telkomsel | Within 10-20 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | 10,849 | 10,620
Periodic pension benefit cost | Telkomsel | Within 20-30 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | 8,385 | 8,203
Periodic pension benefit cost | Telkomsel | Within 30-40 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | Rp 901 | Rp 1,035
The company | Telkomsel |  |
Disclosure of defined benefit plans [line items] |  |
Weighted average duration of DBO | 10 years 3 months 18 days |
The company | Defined pension benefit obligation |  |
Disclosure of defined benefit plans [line items] |  |
Weighted average duration of DBO | 10 years 6 months | 10 years 5 months 23 days
The company | Defined pension benefit obligation | Within next 10 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | Rp 20,809 | Rp 18,913
The company | Defined pension benefit obligation | Within 10-20 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | 23,096 | 21,775
The company | Defined pension benefit obligation | Within 20-30 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | 21,308 | 19,869
The company | Defined pension benefit obligation | Within 30-40 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | 16,537 | 14,599
The company | Defined pension benefit obligation | Within 40-50 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | 3,965 | 3,278
The company | Defined pension benefit obligation | Within 50-60 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | 2,803 | 378
The company | Defined pension benefit obligation | Within 60-70 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | Rp 16 | Rp 23
The company | Additional pension benefit obligation |  |
Disclosure of defined benefit plans [line items] |  |
Weighted average duration of DBO | 10 years 6 months | 10 years 5 months 23 days
The company | Unfunded Pension |  |
Disclosure of defined benefit plans [line items] |  |
Weighted average duration of DBO | 5 years 9 months | 5 years 9 months 3 days
The company | Unfunded Pension | Within next 10 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | Rp 691 | Rp 1,061
The company | Unfunded Pension | Within 10-20 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | 92 | 94
The company | Unfunded Pension | Within 20-30 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | 85 | 77
The company | Unfunded Pension | Within 30-40 years |  |
Disclosure of defined benefit plans [line items] |  |
Estimated future benefit payments | Rp 17 | Rp 20

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