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Basis of Preparation - Additional Information (Detail) $ in Millions | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2019 USD ($) $ / $ | Mar. 06, 2020 $ / $ | Jan. 01, 2019 | Dec. 31, 2017 / $
Disclosure of Detailed Information About Investment Property [line items] |  |  |  |
Exchange Rate | 18.8600 |  |  |
Increase decrease in foreign currency exchange rate | 7.00% |  |  |
Expense relating to leases of low-value assets for which recognition exemption has been used | $ | $ 5,000 |  |  |
Weighted average incremental borrowing rate |  |  | 9.17% |
Venezuela [member] |  |  |  |
Disclosure of Detailed Information About Investment Property [line items] |  |  |  |
Exchange Rate | / $ |  |  |  | 22,793
Foreign currency exchange [member] | Forecast [member] |  |  |  |
Disclosure of Detailed Information About Investment Property [line items] |  |  |  |
Exchange Rate |  | 20.1710 |  |

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- Definition The spot exchange rate at the end of the reporting period. Exchange rate is the ratio of exchange for two currencies. Spot exchange rate is the exchange rate for immediate delivery. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&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 weighted average lessee's incremental borrowing rate applied to lease liabilities recognised in the statement of financial position at the date of initial application of IFRS 16. The incremental borrowing rate is the rate of interest that a lessee would have to pay to borrow over a similar term, and with a similar security, the funds necessary to obtain an asset of a similar value to the right-of-use asset in a similar economic environment. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2019-01-01 -Paragraph C12 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_C12_a&doctype=Appendix&subtype=C -URIDate 2019-03-27 + Details
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