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RIGHT OF USE ASSETS - Carrying amounts (Details) $ in Millions, Rp in Billions |  | 12 Months Ended |
--- | --- | --- | ---
Jan. 01, 2019 IDR (Rp) | Dec. 31, 2019 IDR (Rp) | Dec. 31, 2018 IDR (Rp) | Dec. 31, 2019 USD ($) | Dec. 31, 2019 IDR (Rp)
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Short-term lease expense |  | Rp 5,294 |  |  |
Low-value asset leases expense |  | 65 |  |  |
Effect of adoption of new accounting standards |  |  | Rp 258 |  |
Right-of-use assets | Rp 23,296 |  |  | $ 1,505 | Rp 20,893
IFRS 16 |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Effect of adoption of new accounting standards | 23,296 |  |  |  |
Right-of-use assets |  |  |  |  | 20,893
Gross or Cost |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Additions to right-of-use assets |  | 2,892 |  |  |
Deductions |  | (664) |  |  |
Reclassification |  | (210) |  |  |
Right-of-use assets | 23,296 |  |  |  | 25,314
Gross or Cost | IFRS 16 |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Effect of adoption of new accounting standards | 23,296 |  |  |  |
Accumulated depreciation |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Additions to right-of-use assets |  | (4,688) |  |  |
Deductions |  | 198 |  |  |
Reclassification |  | 69 |  |  |
Right-of-use assets |  |  |  |  | (4,421)
Land rights | Gross or Cost |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Additions to right-of-use assets |  | 1,546 |  |  |
Reclassification |  | (6) |  |  |
Right-of-use assets | 4,131 |  |  |  | 5,671
Land rights | Gross or Cost | IFRS 16 |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Effect of adoption of new accounting standards | 4,131 |  |  |  |
Land rights | Accumulated depreciation |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Additions to right-of-use assets |  | (676) |  |  |
Right-of-use assets |  |  |  |  | (676)
Buildings | Gross or Cost |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Additions to right-of-use assets |  | 70 |  |  |
Reclassification |  | (17) |  |  |
Right-of-use assets | 786 |  |  |  | 839
Buildings | Gross or Cost | IFRS 16 |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Effect of adoption of new accounting standards | 786 |  |  |  |
Buildings | Accumulated depreciation |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Additions to right-of-use assets |  | (238) |  |  |
Reclassification |  | 1 |  |  |
Right-of-use assets |  |  |  |  | (237)
Transmission installation and equipment | Gross or Cost |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Additions to right-of-use assets |  | 732 |  |  |
Deductions |  | (576) |  |  |
Reclassification |  | (4) |  |  |
Right-of-use assets | 17,335 |  |  |  | 17,487
Transmission installation and equipment | Gross or Cost | IFRS 16 |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Effect of adoption of new accounting standards | 17,335 |  |  |  |
Transmission installation and equipment | Accumulated depreciation |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Additions to right-of-use assets |  | (3,466) |  |  |
Deductions |  | 137 |  |  |
Right-of-use assets |  |  |  |  | (3,329)
Power supply | Gross or Cost |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Additions to right-of-use assets |  | 316 |  |  |
Reclassification |  | (125) |  |  |
Right-of-use assets | 398 |  |  |  | 589
Power supply | Gross or Cost | IFRS 16 |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Effect of adoption of new accounting standards | 398 |  |  |  |
Power supply | Accumulated depreciation |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Additions to right-of-use assets |  | (86) |  |  |
Reclassification |  | 17 |  |  |
Right-of-use assets |  |  |  |  | (69)
Vehicles | Gross or Cost |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Additions to right-of-use assets |  | 188 |  |  |
Deductions |  | (84) |  |  |
Reclassification |  | (50) |  |  |
Right-of-use assets | 646 |  |  |  | 700
Vehicles | Gross or Cost | IFRS 16 |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Effect of adoption of new accounting standards | Rp 646 |  |  |  |
Vehicles | Accumulated depreciation |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Additions to right-of-use assets |  | (194) |  |  |
Deductions |  | 58 |  |  |
Reclassification |  | 25 |  |  |
Right-of-use assets |  |  |  |  | (111)
Others. | Gross or Cost |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Additions to right-of-use assets |  | 40 |  |  |
Deductions |  | (4) |  |  |
Reclassification |  | (8) |  |  |
Right-of-use assets |  |  |  |  | 28
Others. | Accumulated depreciation |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Additions to right-of-use assets |  | (28) |  |  |
Deductions |  | 3 |  |  |
Reclassification |  | Rp 26 |  |  |
Right-of-use assets |  |  |  |  | Rp 1
Minimum |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Lease term |  | 2 years |  |  |
Minimum | Buildings |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Lease term |  | 10 years |  |  |
Maximum |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Lease term |  | 15 years |  |  |
Maximum | Buildings |  |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |  |
Lease term |  | 50 years |  |  |

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- Definition The amount of additions to right-of-use assets. [Refer: Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2019-01-01 -Paragraph 53 -Subparagraph h -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_53_h&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of the expense relating to leases of low-value assets accounted for applying paragraph 6 of IFRS 16. This expense shall not include the expense relating to short-term leases of low-value assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2019-01-01 -Paragraph 53 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_53_d&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of the expense relating to short-term leases accounted for applying paragraph 6 of IFRS 16. This expense need not include the expense relating to leases with a lease term of one month or less. Short-term lease is a lease that, at the commencement date, has a lease term of 12 months or less. A lease that contains a purchase option is not a short-term lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2019-01-01 -Paragraph 53 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_53_c&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of assets that represent a lessee's right to use an underlying asset for the lease term. Underlying asset is an asset that is the subject of a lease, for which the right to use that asset has been provided by a lessor to a lessee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2019-01-01 -Paragraph 53 -Subparagraph j -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_53_j&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition the right of use assets net. + References No definition available. + Details
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