XML 148 R11.htm IDEA: XBRL DOCUMENT
v3.20.1

CRITICAL JUDGMENTS, ESTIMATES, ASSUMPTIONS AND RISKS | 12 Months Ended
--- | ---
Dec. 31, 2019
Accounting Judgements and Estimates [Abstract] |
CRITICAL JUDGMENTS, ESTIMATES, ASSUMPTIONS AND RISKS | CRITICAL JUDGMENTS, ESTIMATES, ASSUMPTIONS AND RISKS Many of the amounts included in the consolidated balance sheet require management to make judgments and/or estimates. These judgments and estimates are continuously evaluated and are based on management’s experience and knowledge of the relevant facts and circumstances. Actual results may differ from the estimates. Information about such judgments and estimates is contained in the description of our accounting policies and/or other notes to the financial statements. The key areas where judgments, estimates and assumptions have been made are summarized below. Life of Mine (“LOM”) Plans and Reserves and Resources Estimates of the quantities of proven and probable mineral reserves and mineral resources form the basis for our LOM plans, which are used for a number of important business and accounting purposes, including: the calculation of depreciation expense; the capitalization of production phase stripping costs; and forecasting the timing of the payments related to the environmental rehabilitation provision. In addition, the underlying LOM plans are used in the impairment tests for goodwill and non-current assets. In certain cases, these LOM plans have made assumptions about our ability to obtain the necessary permits required to complete the planned activities. We estimate our ore reserves and mineral resources based on information compiled by qualified persons as defined in accordance with the Canadian Securities Administrators’ National Instrument 43-101 Standards of Disclosure for Mineral Projects requirements. To calculate our gold reserves, as at December 31, 2019 we have used a gold price assumption of $1,200 per ounce, consistent with the prior year. To calculate our measured, indicated, and inferred gold resources, as at December 31, 2019 we have used a gold price assumption of $1,500 per ounce, consistent with the prior year. Refer to notes 19 and 21. Inventory The measurement of inventory including the determination of its net realizable value, especially as it relates to ore in stockpiles, involves the use of estimates. Net realizable value is determined with reference to relevant market prices less applicable variable selling expenses. Estimation is also required in determining the tonnage, recoverable gold and copper contained therein, and in determining the remaining costs of completion to bring inventory into its saleable form. Judgment also exists in determining whether to recognize a provision for obsolescence on mine operating supplies, and estimates are required to determine salvage or scrap value of supplies. Estimates of recoverable gold or copper on the leach pads are calculated from the quantities of ore placed on the leach pads (measured tonnes added to the leach pads), the grade of ore placed on the leach pads (based on assay data) and a recovery percentage (based on ore type). Impairment and Reversal of Impairment for Non-Current Assets and Impairment of Goodwill Goodwill and non-current assets are tested for impairment if there is an indicator of impairment or reversal of impairment, and in the case of goodwill annually during the fourth quarter, for all of our operating segments. We consider both external and internal sources of information for indications that non-current assets and/or goodwill are impaired. External sources of information we consider include changes in the market, economic and legal environment in which the CGU operates that are not within its control and affect the recoverable amount of mining interests and goodwill. Internal sources of information we consider include the manner in which mining properties and plant and equipment are being used or are expected to be used and indications of economic performance of the assets. Calculating the FVLCD of CGUs for non-current asset and goodwill impairment tests requires management to make estimates and assumptions with respect to future production levels, operating, capital and closure costs in our LOM plans, future metal prices, foreign exchange rates, Net Asset Value (“NAV”) multiples, value of reserves outside LOM plans in relation to the assumptions related to comparable entities and the market values per ounce and per pound and discount rates. Changes in any of the assumptions or estimates used in determining the fair values could impact the impairment analysis. Refer to notes 2o, 2q and 21 for further information. Provisions for Environmental Rehabilitation Management assesses its provision for environmental rehabilitation on an annual basis or when new information becomes available. This assessment includes the estimation of the future rehabilitation costs, the timing of these expenditures, and the impact of changes in discount rates and foreign exchange rates. The actual future expenditures may differ from the amounts currently provided if the estimates made are significantly different than actual results or if there are significant changes in environmental and/or regulatory requirements in the future. Refer to notes 2u and 27 for further information. With respect to our U.S. properties, under the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (“CERCLA”) and its state law equivalents, present or past owners of a property may be held jointly and severally liable for cleanup costs or forced to undertake remedial actions in response to unpermitted releases of hazardous substances at such property, in addition to, among other potential consequences, potential liability to governmental entities for the cost of damages to natural resources, which may be substantial. These subject properties are referred to as “superfund” sites. In addition to properties that have previously been designated as such, there is a chance that our current or legacy operations not currently designated as superfund sites in the U.S. could also be so designated as a superfund site in the future, exposing Barrick to potential further liability under CERCLA. In 2017, the U.S. Environmental Protection Agency announced it is considering listing on the CERCLA National Priorities List a 322-square-mile site in the San Mateo basin in New Mexico (“San Mateo Site”) due to alleged surface and groundwater contamination from past uranium mining. The San Mateo Site includes legacy operations of our wholly-owned subsidiary Homestake Mining Company of California (“Homestake”). In the fourth quarter of 2019, Homestake entered into a voluntary Administrative Order on Consent obligating Homestake and two other potentially responsible companies to conduct a study of groundwater conditions in a portion of the San Mateo uranium mining district. The Company has made an accrual for the estimated cost of completing this work. Taxes Management is required to make estimations regarding the tax basis of assets and liabilities and related deferred income tax assets and liabilities, amounts recorded for uncertain tax positions, the measurement of income tax expense and indirect taxes such as royalties and export duties, and estimates of the timing of repatriation of earnings, which would impact the recognition of withholding taxes and taxes related to the outside basis on subsidiaries/associates. While these amounts represent management’s best estimate based on the laws and regulations that exist at the time of preparation, we operate in certain jurisdictions that have an increased degree of political and sovereign risk and while host governments have historically supported the development of natural resources by foreign companies, there is a risk that fiscal reform changes with respect to existing investments could unexpectedly impact the tax basis of assets and liabilities, and related deferred income tax assets and liabilities, and estimates of the timing of repatriation of earnings. This could necessitate future adjustments to tax income and expense already recorded. A number of these estimates require management to make estimates of future taxable profit, as well as the recoverability of indirect taxes, and if actual results are significantly different than our estimates, the ability to realize the deferred tax assets and indirect tax receivables recorded on our balance sheet could be impacted. Refer to notes 2j, 12 and 30 for further information. Contingencies Contingencies can be either possible assets or possible liabilities arising from past events which, by their nature, will only be resolved when one or more future events not wholly within our control occur or fail to occur. The assessment of such contingencies inherently involves the exercise of significant judgment and estimates of the outcome of future events. In assessing loss contingencies related to legal proceedings that are pending against us or unasserted claims that may result in such proceedings or regulatory or government actions that may negatively impact our business or operations, the Company with assistance from its legal counsel evaluates the perceived merits of any legal proceedings or unasserted claims or actions as well as the perceived merits of the nature and amount of relief sought or expected to be sought, when determining the amount, if any, to recognize as a contingent liability or assessing the impact on the carrying value of assets. Contingent assets are not recognized in the consolidated financial statements. Refer to note 36 for more information. Pascua-Lama The Pascua-Lama project received $424 million as at December 31, 2019 ($443 million as at December 31, 2018) in value added tax (“VAT”) refunds in Chile relating to the development of the Chilean side of the project. Under the current arrangement this amount must be repaid if the project does not evidence exports for an amount of $3,538 million within a term that expires on December 31, 2026, unless extended. Interest on this amount would accrue from the date of non-compliance. In addition, we have recorded $72 million in VAT recoverable in Argentina as at December 31, 2019 ($112 million as at December 31, 2018) relating to the development of the Argentinean side of the project. These amounts may not be fully recoverable if the project does not enter into production and are subject to foreign currency risk as the amounts are recoverable in Argentine pesos. Streaming Transactions The upfront cash deposit received from Royal Gold on the gold and silver streaming transaction for production linked to Barrick’s 60% interest in the Pueblo Viejo mine has been accounted for as deferred revenue since we have determined that it is not a derivative as it will be satisfied through the delivery of non-financial items (i.e., gold and silver) rather than cash or financial assets. It is our intention to settle the obligations under the streaming arrangement through our own production and if we were to fail to settle the obligations with Royal Gold through our own production, this would lead to the streaming arrangement becoming a derivative. This would cause a change to the accounting treatment, resulting in the revaluation of the fair value of the agreement through profit and loss on a recurring basis. Refer to note 29 for further details. The deferred revenue component of our streaming agreements is considered variable and is subject to retroactive adjustment when there is a change in the timing of the delivery of ounces or in the underlying production profile of the relevant mine. The impact of such a change in the timing or quantity of ounces to be delivered under a streaming agreement will result in retroactive adjustments to both the deferred revenue recognized and the accretion recorded prior to the date of the change. Refer to note 2f. There was a $22 million cumulative catch-up adjustment recorded in the fourth quarter of 2019 related to this streaming transaction as that is when the updated LOM was completed. Our silver sale agreement with Wheaton Precious Metals Corp. (“Wheaton”) requires us to deliver 25% of the life of mine silver production from the Pascua-Lama project once it is constructed and required delivery of 100% of our silver production from Lagunas Norte, Pierina and Veladero mines until March 31, 2018. The completion date for Pascua-Lama was originally December 31, 2015 but was subsequently extended to June 30, 2020. Per the terms of the amended silver purchase agreement, if the requirements of the completion guarantee have not been satisfied by June 30, 2020, the agreement may be terminated by Wheaton, in which case, they will be entitled to the return of the upfront consideration paid less credit for silver delivered up to the date of that event. The residual liability at December 31, 2019 is $253 million. In the fourth quarter of 2019, we completed a study of the Pascua-Lama project and concluded that we do not have a plan that meets our investment criteria under our current assumptions. As a result, the deferred revenue liability was derecognized, and a current liability was recognized for the cash liability payable to Wheaton of $253 million. This adjustment resulted in $628 million recorded in Other Income (refer to note 9) and recognizes the significant uncertainty with the timing and quantity of the delivery of any future silver production from Pascua-Lama. Zambian Tax Matters The mining taxes assessed to the Lumwana Mine have contradicted the Development Agreement that was finalized between Lumwana Mining Company Limited (“LMC”) and the Government of Zambia on December 16, 2005. In 2015, the Company began to take steps to preserve its rights under the Development Agreement and started to engage in formal discussions with the government to redress historical tax issues relating to the Development Agreement. On October 3, 2018, a deed of settlement was signed by the Government of Zambia and LMC. The deed provided that, within 30 days of the deed, LMC shall file tax returns for 2012 through 2017, and the government shall have the right to conduct and complete an audit of the returns. The audit of these tax returns by the Zambian tax authority was completed in the fourth quarter of 2019 and we recorded a $50 million asset reflecting the final settlement of this matter. We also released historical accruals related to customs duty and indirect taxes resulting in a total of $216 million recognized in Other Income in 2019 (refer to note 9). Business Combinations Business combinations are accounted for using the acquisition method of accounting. The determination of fair value often requires management to make estimates and assumptions with respect to future production levels, operating, capital and closure costs in our LOM plans, future metal prices, foreign exchange rates, Net Asset Value (“NAV”) multiples, value of reserves outside LOM plans in relation to the assumptions related to comparable entities and the market values per ounce and per pound and discount rates. The excess of the purchase price over the estimated fair value of the net assets acquired is then assigned to goodwill. Goodwill is assigned to individual CGUs based on the relative fair value and/or the CGUs that are expected to benefit from the synergies of the business combination. Refer to note 4 for further details on acquisitions. Other Notes to the Financial Statements
| Note
Acquisitions and Divestitures | 4 |
Segment information | 5 |
Revenue | 6 |
Cost of sales | 7 |
Exploration, evaluation and project expenses | 8 |
Other expense (income) | 9 |
Impairment (reversals) charges | 10 |
General and administrative expenses | 11 |
Income tax expense | 12 |
Earnings (loss) per share | 13 |
Finance costs, net | 14 |
Cash flow - other items | 15 |
Investments | 16 |
Inventories | 17 |
Accounts receivable and other current assets | 18 |
Property, plant and equipment | 19 |
Goodwill and other intangible assets | 20 |
Impairment and reversal of non-current assets | 21 |
Other assets | 22 |
Accounts payable | 23 |
Other current liabilities | 24 |
Financial instruments | 25 |
Fair value measurements | 26 |
Provisions | 27 |
Financial risk management | 28 |
Other non-current liabilities | 29 |
Deferred income taxes | 30 |
Capital stock | 31 |
Non-controlling interests | 32 |
Related party transactions | 33 |
Stock-based compensation | 34 |
Post-retirement benefits | 35 |
Contingencies | 36 |

X
- Definition Accounting Judgements and Estimates [Abstract] + References No definition available. + Details
Name: | abx_AccountingJudgementsandEstimatesAbstract
Namespace Prefix: | abx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of judgements that management has made in the process of applying the entity's accounting policies that have the most significant effect on amounts recognised in the financial statements along with information about the assumptions that the entity makes about the future, and other major sources of estimation uncertainty at the end of the reporting period, that have a significant risk of resulting in a material adjustment to the carrying amounts of assets and liabilities within the next year. [Refer: Carrying amount [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_10_e&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration