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SIGNIFICANT EVENTS (Details) € in Millions, ¥ in Millions, SFr in Millions, $ in Millions, $ in Millions, $ in Millions | 12 Months Ended
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Dec. 31, 2018 CLP ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2018 EUR (€) | Dec. 31, 2018 JPY (¥) | Dec. 31, 2018 CHF (SFr) | Dec. 31, 2018 AUD ($) | Dec. 31, 2017 CLP ($)
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Notional amount | $ 241,467,084 |  |  |  |  |  | $ 177,224,139
Bonds [Member] | AUD |  |  |  |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Notional amount |  |  |  |  |  | $ 20,000,000 |
Bonds [Member] | AUD | AUD [Member] |  |  |  |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Currency | AUD | AUD | AUD | AUD | AUD | AUD |
Notional amount |  |  |  |  |  | $ 20,000,000 |
Term (annual) | P5Y | P5Y | P5Y | P5Y | P5Y | P5Y |
Issuance rate (annual) | 3.56% | 3.56% | 3.56% | 3.56% | 3.56% | 3.56% |
Issue date | Nov. 05, 2018 | Nov. 05, 2018 | Nov. 05, 2018 | Nov. 05, 2018 | Nov. 05, 2018 | Nov. 05, 2018 |
Maturity date | Nov. 13, 2023 | Nov. 13, 2023 | Nov. 13, 2023 | Nov. 13, 2023 | Nov. 13, 2023 | Nov. 13, 2023 |
Bonds [Member] | CHF |  |  |  |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Notional amount | SFr |  |  |  |  | SFr 115,000,000 |  |
Bonds [Member] | CHF | CHF [Member] |  |  |  |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Currency | CHF | CHF | CHF | CHF | CHF | CHF |
Notional amount | SFr |  |  |  |  | SFr 115,000,000 |  |
Term (annual) | P5Y | P5Y | P5Y | P5Y | P5Y | P5Y |
Issuance rate (annual) | 0.44% | 0.44% | 0.44% | 0.44% | 0.44% | 0.44% |
Issue date | Sep. 04, 2018 | Sep. 04, 2018 | Sep. 04, 2018 | Sep. 04, 2018 | Sep. 04, 2018 | Sep. 04, 2018 |
Maturity date | Dec. 21, 2023 | Dec. 21, 2023 | Dec. 21, 2023 | Dec. 21, 2023 | Dec. 21, 2023 | Dec. 21, 2023 |
Bonds [Member] | EUR |  |  |  |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Notional amount | € |  |  | € 66,000,000 |  |  |  |
Bonds [Member] | EUR | EUR [Member] |  |  |  |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Currency | EUR | EUR | EUR | EUR | EUR | EUR |
Notional amount | € |  |  | € 26,000,000 |  |  |  |
Term (annual) | P7Y | P7Y | P7Y | P7Y | P7Y | P7Y |
Issuance rate (annual) | 1.00% | 1.00% | 1.00% | 1.00% | 1.00% | 1.00% |
Issue date | May 04, 2018 | May 04, 2018 | May 04, 2018 | May 04, 2018 | May 04, 2018 | May 04, 2018 |
Maturity date | May 28, 2025 | May 28, 2025 | May 28, 2025 | May 28, 2025 | May 28, 2025 | May 28, 2025 |
Bonds [Member] | EUR | EUR 1 [Member] |  |  |  |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Currency | EUR | EUR | EUR | EUR | EUR | EUR |
Notional amount | € |  |  | € 40,000,000 |  |  |  |
Term (annual) | P12Y | P12Y | P12Y | P12Y | P12Y | P12Y |
Issuance rate (annual) | 1.78% | 1.78% | 1.78% | 1.78% | 1.78% | 1.78% |
Issue date | Jun. 08, 2018 | Jun. 08, 2018 | Jun. 08, 2018 | Jun. 08, 2018 | Jun. 08, 2018 | Jun. 08, 2018 |
Maturity date | Jun. 15, 2030 | Jun. 15, 2030 | Jun. 15, 2030 | Jun. 15, 2030 | Jun. 15, 2030 | Jun. 15, 2030 |
Bonds [Member] | JPY [Member] |  |  |  |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Notional amount | ¥ |  |  |  | ¥ 7,000,000,000 |  |  |
Bonds [Member] | JPY [Member] | JPY [Member] |  |  |  |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Currency | JPY | JPY | JPY | JPY | JPY | JPY |
Notional amount | ¥ |  |  |  | ¥ 4,000,000,000 |  |  |
Term (annual) | P10Y6M | P10Y6M | P10Y6M | P10Y6M | P10Y6M | P10Y6M |
Issuance rate (annual) | 0.65% | 0.65% | 0.65% | 0.65% | 0.65% | 0.65% |
Issue date | Jul. 05, 2018 | Jul. 05, 2018 | Jul. 05, 2018 | Jul. 05, 2018 | Jul. 05, 2018 | Jul. 05, 2018 |
Maturity date | Jan. 13, 2029 | Jan. 13, 2029 | Jan. 13, 2029 | Jan. 13, 2029 | Jan. 13, 2029 | Jan. 13, 2029 |
Bonds [Member] | JPY [Member] | JPY 1 [Member] |  |  |  |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Currency | JPY | JPY | JPY | JPY | JPY | JPY |
Notional amount | ¥ |  |  |  | ¥ 3,000,000,000 |  |  |
Term (annual) | P5Y | P5Y | P5Y | P5Y | P5Y | P5Y |
Issuance rate (annual) | 0.56% | 0.56% | 0.56% | 0.56% | 0.56% | 0.56% |
Issue date | Oct. 23, 2018 | Oct. 23, 2018 | Oct. 23, 2018 | Oct. 23, 2018 | Oct. 23, 2018 | Oct. 23, 2018 |
Maturity date | Oct. 23, 2023 | Oct. 23, 2023 | Oct. 23, 2023 | Oct. 23, 2023 | Oct. 23, 2023 | Oct. 23, 2023 |
Bonds [Member] | USD [Member] |  |  |  |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Notional amount |  | $ 70,000,000 |  |  |  |  |
Bonds [Member] | USD [Member] | USD [Member] |  |  |  |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Currency | USD | USD | USD | USD | USD | USD |
Notional amount |  | $ 50,000,000 |  |  |  |  |
Term (annual) | P10Y | P10Y | P10Y | P10Y | P10Y | P10Y |
Issuance rate (annual) | 3.69% | 3.69% | 3.69% | 3.69% | 3.69% | 3.69% |
Issue date | Oct. 02, 2018 | Oct. 02, 2018 | Oct. 02, 2018 | Oct. 02, 2018 | Oct. 02, 2018 | Oct. 02, 2018 |
Maturity date | Oct. 10, 2028 | Oct. 10, 2028 | Oct. 10, 2028 | Oct. 10, 2028 | Oct. 10, 2028 | Oct. 10, 2028 |
Bonds [Member] | USD [Member] | USD 1 [Member] |  |  |  |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Currency | USD | USD | USD | USD | USD | USD |
Notional amount |  | $ 20,000,000 |  |  |  |  |
Term (annual) | P2Y | P2Y | P2Y | P2Y | P2Y | P2Y |
Issuance rate (annual) | 4.17% | 4.17% | 4.17% | 4.17% | 4.17% | 4.17% |
Issue date | Nov. 05, 2018 | Nov. 05, 2018 | Nov. 05, 2018 | Nov. 05, 2018 | Nov. 05, 2018 | Nov. 05, 2018 |
Maturity date | Nov. 16, 2020 | Nov. 16, 2020 | Nov. 16, 2020 | Nov. 16, 2020 | Nov. 16, 2020 | Nov. 16, 2020 |

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