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Derivative Instruments and Accounting Hedges - CLF assets hedged (Details) $ in Thousands, $ in Millions | 12 Months Ended
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Dec. 31, 2018 USD ($) | Dec. 31, 2018 CLP ($) item | Dec. 31, 2017 CLP ($) item | Dec. 31, 2016 CLP ($)
CLF Assets hedged |  |  |  |
Accumulated amount of unrealized gain charged to equity, before tax | $ (44,612) | $ (30,943) | $ 14,979 | $ (50,481)
Cash flow hedge adjustment, net |  | (22,589) | 11,158 | (38,366)
Cash Flow hedge | Cash flow in CLF |  |  |  |
CLF Assets hedged |  |  |  |
Accumulated amount of unrealized gain charged to equity, before tax |  | 30,943 | 14,979 | 50,481
Cash flow hedge adjustment, net |  | (22,589) | 11,158 | (38,366)
Accumulated amount of unrealized gain charged to equity, after income tax |  | (31,983) | (9,394) | 20,552
Net effect in income of derivatives |  | $ 85,659 | $ 93,612 | $ 135,929
Number of hedges of net investments in foreign businesses | item |  | 0 | 0 |

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- Definition The gains (losses) recognised in other comprehensive income on cash flow hedges, before tax. [Refer: Cash flow hedges [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 91 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_91_b&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2021-01-01 -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 23 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-02&anchor=para_23_c&doctype=Standard&book=b -URIDate 2018-03-16 + Details
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- Definition The gains (losses) recognised in other comprehensive income on cash flow hedges, net of tax. [Refer: Cash flow hedges [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 24C -Subparagraph b -Clause i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_24C_b_i&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 24E -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_24E_a&doctype=Standard -URIDate 2018-03-16 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 91 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_91_a&doctype=Standard -URIDate 2018-03-16 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2021-01-01 -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 23 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-02&anchor=para_23_c&doctype=Standard&book=b -URIDate 2018-03-16 + Details
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