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SUPPLEMENTAL CASH FLOW INFORMATION (Details) - IDR (Rp) Rp in Billions | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
SUPPLEMENTAL CASH FLOW INFORMATION |  |  |
Acquisitions of property and equipment - Credited to trade payables | Rp 5,459 | Rp 4,275 | Rp 5,525
Acquisitions of property and equipment - Advance paid |  | 2,837 |
Acquisitions of property and equipment - Credited to obligations under finance leases |  | 201 | 518
Acquisitions of property and equipment - Interest capitalization | 99 | 270 | 328
Acquisitions of intangible assets: Credited to trade payables | Rp 684 | Rp 235 | Rp 846

X
- Definition The amount of advance paid for acquisitions of property and equipment. + References No definition available. + Details
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Namespace Prefix: | tlk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Not Available. + References No definition available. + Details
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Namespace Prefix: | tlk_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of non-cash acquisition of intangible assets transferred to trade payables. + References No definition available. + Details
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Namespace Prefix: | tlk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of non-cash acquisition of property and equipment related to interest capitalization. + References No definition available. + Details
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Namespace Prefix: | tlk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of non-cash acquisition of property and equipment transferred to obligations under finance leases. + References No definition available. + Details
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Namespace Prefix: | tlk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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X
- Definition The amount of non-cash acquisition of property and equipment transferred to trade payables. + References No definition available. + Details
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Namespace Prefix: | tlk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration