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CAPITAL MANAGEMENT - Debt to equity ratio (Details) $ in Millions, Rp in Billions | Dec. 31, 2018 USD ($) | Dec. 31, 2018 IDR (Rp) | Dec. 31, 2017 USD ($) | Dec. 31, 2017 IDR (Rp) | Dec. 31, 2016 IDR (Rp) | Dec. 31, 2015 IDR (Rp)
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CAPITAL MANAGEMENT |  |  |  |  |  |
Total interest bearing debts |  | Rp 44,082 |  | Rp 35,472 |  |
Less cash and cash equivalents | $ (1,212) | (17,435) | $ (1,747) | (25,145) | Rp (29,767) | Rp (28,117)
Net debt |  | 26,647 |  | 10,327 |  |
Total equity attributable to owners of the parent company |  | Rp 98,739 |  | Rp 92,467 |  |
Net debt-to-equity ratio (as a percent) | 26.99% | 26.99% | 11.17% | 11.17% |  |

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- Definition The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2018-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_45&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2018-01-01 -Paragraph B13 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_B13_a&doctype=Appendix&seq=2 -URIDate 2018-03-16 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 54 -Subparagraph i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_54_i&doctype=Standard -URIDate 2018-03-16 + Details
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