Barrick Gold (GOLD) 6-K 20 Feb 20 2019 FY Current report (foreign) Financial data

Document and Entity Information

Document and Entity Information	12 Months Ended
	Dec. 31, 2019
Document And Entity Information [Abstract]
Entity Registrant Name	BARRICK GOLD CORP
Entity Central Index Key	0000756894
Entity Current Reporting Status	Yes
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Document Type	6-K
Document Period End Date	Dec. 31, 2019
Amendment Flag	false

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Profit or loss [abstract]
Revenue (notes 5 and 6)	$ 9,717	$ 7,243
Costs and expenses
Cost of sales (notes 5 and 7)	6,911	5,220
General and administrative expenses (note 11)	212	265
Exploration, evaluation and project expenses (notes 5 and 8)	342	383
Impairment (reversals) charges (note 10)	(1,423)	900
Loss on currency translation	109	136
Closed mine rehabilitation (note 27b)	5	(13)
Income from equity investees (note 16)	(165)	(46)
Other (income) expense (note 9)	(3,100)	90
Income before finance items and income taxes	6,826	308
Finance costs, net (note 14)	(469)	(545)
Income (loss) before income taxes	6,357	(237)
Income tax expense (note 12)	(1,783)	(1,198)
Net income (loss)	4,574	(1,435)
Attributable to:
Equity holders of Barrick Gold Corporation	3,969	(1,545)
Non-controlling interests (note 32)	$ 605	$ 110
Earnings (loss) per share data attributable to the equity holders of Barrick Gold Corporation (note 13)
Net income, Basic (in USD per share)	$ 2.26	$ (1.32)
Net income, Diluted (in USD per share)	$ 2.26	$ (1.32)

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Statement of comprehensive income [abstract]
Net income (loss)	$ 4,574	$ (1,435)
Items that may be reclassified subsequently to profit or loss:
Unrealized gains (losses) on derivatives designated as cash flow hedges, net of tax $nil and ($12)	0	8
Realized (gains) losses on derivatives designated as cash flow hedges, net of tax $nil and $3	0	(2)
Currency translation adjustments, net of tax $nil and $nil	(6)	(9)
Items that will not be reclassified to profit or loss:
Actuarial gain (loss) on post-employment benefit obligations, net of tax ($3) and $nil	(6)	(2)
Net change on equity investments, net of tax $nil and $nil	48	16
Total other comprehensive income	36	11
Total comprehensive income (loss)	4,610	(1,424)
Attributable to:
Equity holders of Barrick Gold Corporation	4,005	(1,534)
Non-controlling interests	$ 605	$ 110

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Parentheticals) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Statement of comprehensive income [abstract]
Unrealized gains (losses) on derivatives designated as cash flow hedges, tax	$ 0	$ (12)
Realized (gains) losses on derivatives designated as cash flow hedges, tax	0	3
Currency translation adjustments, tax	0	0
Actuarial gain (loss) on post-employment benefit obligations, tax	(3)	0
Net unrealized change on equity investments, tax	$ 0	$ 0

Consolidated Statements of Cash

Consolidated Statements of Cash Flow - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
OPERATING ACTIVITIES
Net income (loss)	$ 4,574	$ (1,435)
Adjustments for the following items:
Depreciation	2,032	1,457
Finance costs (note 14)	500	560
Impairment (reversals) charges (note 10)	(1,423)	900
Income tax expense (note 12)	1,783	1,198
Loss on currency translation	109	136
Gain on sale of non-current assets (note 9)	(441)	(68)
Remeasurement of Turquoise Ridge to fair value (note 4)	(1,886)	0
Change in working capital (note 15)	(357)	(173)
Other operating activities (note 15)	(1,113)	(62)
Operating cash flows before interest and income taxes	3,778	2,513
Interest paid	(333)	(350)
Income taxes paid	(612)	(398)
Net cash provided by operating activities	2,833	1,765
INVESTING ACTIVITIES
Capital expenditures (note 5)	(1,701)	(1,400)
Sales proceeds	41	70
Divestitures (note 4)	750	0
Investment purchases	(4)	(159)
Cash acquired in merger (note 4)	751	0
Other investing activities (note 15)	213	(5)
Net cash provided by (used in) investing activities	50	(1,494)
FINANCING ACTIVITIES
Lease repayments	(28)	0
Debt repayments	(281)	(687)
Dividends (note 31)	(548)	(125)
Funding from non-controlling interests (note 32)	140	24
Disbursements to non-controlling interests (note 32)	(421)	(108)
Other inflows (outflows) of cash, classified as financing activities	(1)	(29)
Net cash used in financing activities	(1,139)	(925)
Effect of exchange rate changes on cash and equivalents	(1)	(9)
Net increase (decrease) in cash and equivalents	1,743	(663)
Cash and equivalents at beginning of year (note 25a)	1,571	2,234
Cash and equivalents at the end of year	$ 3,314	$ 1,571

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Current assets
Cash and equivalents (note 25a)	$ 3,314	$ 1,571
Accounts receivable (note 18)	363	248
Inventories (note 17)	2,289	1,852
Other current assets (note 18)	565	307
Total current assets (excluding assets classified as held-for-sale)	6,531	3,978
Assets classified as held-for-sale (note 4)	356	0
Total current assets	6,887	3,978
Non-current assets
Non-current portion of inventory (note 17)	2,300	1,696
Equity in investees (note 16)	4,527	1,234
Property, plant and equipment (note 19)	24,141	12,826
Intangible assets (note 20a)	226	227
Goodwill (note 20b)	4,769	1,176
Deferred income tax assets (note 30)	235	259
Other assets (note 22)	1,307	1,235
Total assets	44,392	22,631
Current liabilities
Accounts payable (note 23)	1,155	1,101
Debt (note 25b)	375	43
Current income tax liabilities	224	203
Other current liabilities (note 24)	622	321
Total current liabilities (excluding liabilities classified as held-for-sale)	2,376	1,668
Liabilities classified as held-for-sale (note 4)	0	0
Total current liabilities	2,376	1,668
Non-current liabilities
Debt (note 25b)	5,161	5,695
Provisions (note 27)	3,114	2,904
Deferred income tax liabilities (note 30)	3,091	1,236
Other liabilities (note 29)	823	1,743
Total liabilities	14,565	13,246
Equity
Capital stock (note 31)	29,231	20,883
Deficit	(9,722)	(13,453)
Accumulated other comprehensive loss	(122)	(158)
Other	2,045	321
Total equity attributable to Barrick Gold Corporation shareholders	21,432	7,593
Non-controlling interests (note 32)	8,395	1,792
Total equity	29,827	9,385
Contingencies and commitments (notes 2, 17, 19 and 36)
Total liabilities and equity	$ 44,392	$ 22,631

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity - USD ($) shares in Thousands, $ in Millions		Total	Capital stock	Retained earnings (deficit)	Accumulated other comprehensive income (loss)	[1]	Other	[2]	Total equity attributable to shareholders	Non-controlling interests	Randgold Corporation [Member]	Randgold Corporation [Member]Capital stock	Randgold Corporation [Member]Total equity attributable to shareholders	Randgold Corporation [Member]Non-controlling interests	Nevada Gold Mines	Nevada Gold MinesOther	[2]	Nevada Gold MinesTotal equity attributable to shareholders	Nevada Gold MinesNon-controlling interests	Acacia Mining PLC	Acacia Mining PLCCapital stock	Acacia Mining PLCOther	[2]	Acacia Mining PLCTotal equity attributable to shareholders	Acacia Mining PLCNon-controlling interests
Beginning balance (shares) (Previously stated [member]) at Dec. 31, 2017			1,166,577
Beginning balance (shares) at Dec. 31, 2017			1,166,577
Beginning balance (Previously stated [member]) at Dec. 31, 2017		$ 11,067	$ 20,893	$ (11,759)	$ (169)		$ 321		$ 9,286	$ 1,781
Beginning balance at Dec. 31, 2017		11,131	$ 20,893	(11,695)	(169)		321		9,350	1,781
Net income (loss)		(1,435)		(1,545)					(1,545)	110					$ 0
Total other comprehensive income		11		0	11				11						0
Total comprehensive income (loss)		(1,424)		(1,545)	11				(1,534)	110					0
Transactions with owners
Dividends (note 31)		(199)		(199)					(199)
Issued on exercise of stock options (shares)			20
Funding from non-controlling interests (note 32)		24								24					0					$ 0
Other decrease in non-controlling interests (note 32)		(123)								(123)					0					0
Dividend reinvestment plan (shares)			1,250
Dividend reinvestment plan (note 31)			$ 14	(14)
Other	[3]	(24)	$ (24)						(24)
Total transactions with owners (shares)			1,270
Total transactions with owners		(322)	$ (10)	(213)	0		0		(223)	(99)
Ending balance (shares) at Dec. 31, 2018			1,167,847
Ending balance at Dec. 31, 2018		9,385	$ 20,883	(13,453)	(158)		$ 321		7,593	1,792
Net income (loss)		4,574		3,969					3,969	605					739
Total other comprehensive income		36		0	36				36						0
Total comprehensive income (loss)		4,610		3,969	36				4,005	605					739
Transactions with owners
Dividends (note 31)		$ (218)		(218)					$ (218)
Increase (decrease) in number of shares outstanding												583,669									24,837
Increase (decrease) through acquisition of subsidiary, equity											$ 8,775	$ 7,903	$ 7,903	$ 872						(2)	$ 423	$ 70		$ 493	$ (495)
Increase (decrease) through change in equity of subsidiaries, equity															7,555	$ 1,645		$ 1,645	$ 5,910
Issued on exercise of stock options (shares)			131
Issued on exercise of stock options		2,000	2,000				0		2,000
Funding from non-controlling interests (note 32)		$ 140								140					90					0
Other decrease in non-controlling interests (note 32)		(429)								(429)					$ (236)					$ 0
Dividend reinvestment plan (shares)			1,443
Dividend reinvestment plan (note 31)		0	$ 20	(20)					$ 0	0
Share-based payments		9	$ 0				$ 9		9
Total transactions with owners (shares)			610,080
Total transactions with owners		15,832	$ 8,348	(238)	0		1,724		9,834	5,998
Ending balance (shares) at Dec. 31, 2019			1,777,927
Ending balance at Dec. 31, 2019		$ 29,827	$ 29,231	$ (9,722)	$ (122)		$ 2,045		$ 21,432	$ 8,395
[1]	Includes cumulative translation adjustments as at December 31, 2019: $88 million loss (December 31, 2018: $82 million loss).
[2]	Includes additional paid-in capital as at December 31, 2019: $2,007 million (December 31, 2018: $283 million).
[3]	Represents a reversal of a previously recognized deferred tax asset, which was originally recognized in capital stock.

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Equity (Parentheticals) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Equity	$ 29,827	$ 9,385
Cumulative translation adjustments
Equity	(88)	(82)
Additional paid-in capital
Equity	$ 2,007	$ 283

CORPORATE INFORMATION

CORPORATE INFORMATION	12 Months Ended
	Dec. 31, 2019
Corporate Information [Abstract]
CORPORATE INFORMATION	CORPORATE INFORMATION Barrick Gold Corporation (“Barrick”, “we” or the “Company”) is a corporation governed by the Business Corporations Act (British Columbia) . The Company’s corporate office is located at Brookfield Place, TD Canada Trust Tower, 161 Bay Street, Suite 3700, Toronto, Ontario, M5J 2S1. The Company’s registered office is 925 West Georgia Street, Suite 1600, Vancouver, British Columbia, V6C 3L2. We are principally engaged in the production and sale of gold and copper, as well as related activities such as exploration and mine development. We sell our gold and copper into the world market. We have ownership interests in producing gold mines that are located in Argentina, Canada, Côte d’Ivoire, the Democratic Republic of Congo, the Dominican Republic, Mali, Papua New Guinea, Tanzania and the United States. We have ownership interests in producing copper mines in Chile, Saudi Arabia and Zambia. We also have various projects located throughput the Americas and Africa. Refer to note 4 for information on acquisitions and divestments occurring during the 2019 year.

SIGNIFICANT ACCOUNTING POLICIES

SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2019
Significant Accounting Policies [Abstract]
SIGNIFICANT ACCOUNTING POLICIES	SIGNIFICANT ACCOUNTING POLICIES a) Statement of Compliance These consolidated financial statements have been prepared in accordance with International Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standards Board (“IASB”) under the historical cost convention, as modified by revaluation of derivative contracts and certain financial assets. Accounting policies are consistently applied to all years presented, unless otherwise stated. These consolidated financial statements were approved for issuance by the Board of Directors on February 12, 2020. b) Basis of Preparation Subsidiaries These consolidated financial statements include the accounts of Barrick and its subsidiaries. All intercompany balances, transactions, income and expenses, and profits or losses have been eliminated on consolidation. We consolidate subsidiaries where we have the ability to exercise control. Control of an investee is defined to exist when we are exposed to variable returns from our involvement with the investee and have the ability to affect those returns through our power over the investee. Specifically, we control an investee if, and only if, we have all of the following: power over the investee (i.e., existing rights that give us the current ability to direct the relevant activities of the investee); exposure, or rights, to variable returns from our involvement with the investee; and the ability to use our power over the investee to affect its returns. For non wholly-owned, controlled subsidiaries, the net assets attributable to outside equity shareholders are presented as “non-controlling interests” in the equity section of the consolidated balance sheet. Profit or loss for the period that is attributable to non-controlling interests is calculated based on the ownership of the minority shareholders in the subsidiary. Joint Arrangements A joint arrangement is defined as one over which two or more parties have joint control, which is the contractually agreed sharing of control over an arrangement. This exists only when the decisions about the relevant activities (being those that significantly affect the returns of the arrangement) require the unanimous consent of the parties sharing control. There are two types of joint arrangements: joint operations (“JO”) and joint ventures (“JV”). A JO is a joint arrangement whereby the parties that have joint control of the arrangement have rights to the assets and obligations for the liabilities, relating to the arrangement. In relation to our interests in joint operations, we recognize our share of any assets, liabilities, revenues and expenses of the JO. A JV is a joint arrangement whereby the parties that have joint control of the arrangement have rights to the net assets of the joint venture. Our investments in JVs are accounted for using the equity method. On acquisition, an equity method investment is initially recognized at cost. The carrying amount of equity method investments includes goodwill identified on acquisition, net of any accumulated impairment losses. The carrying amount is adjusted by our share of post-acquisition net income or loss; depreciation, amortization or impairment of the fair value adjustments made on the underlying balance sheet at the date of acquisition; dividends; cash contributions; and our share of post-acquisition movements in Other Comprehensive Income (“OCI”). If the carrying value in an equity method investment is reduced to zero, additional losses are not provided for, and a liability is not recognized, unless the Company has incurred legal or constructive obligations, or made payments on behalf of the equity method investment. Outlined below is information related to our joint arrangements and entities other than 100% owned Barrick subsidiaries at December 31, 2019 : Place of business Entity type Economic interest 1 Method 2 Nevada Gold Mines 3,4,5,6,7 United States Subsidiary 61.5% Consolidation Loulo-Gounkoto 3 Mali Subsidiary 80% Consolidation Tongon 3 Côte d’Ivoire Subsidiary 89.7% Consolidation Pueblo Viejo 3 Dominican Republic Subsidiary 60% Consolidation Norte Abierto Project Chile JO 50% Our share Donlin Gold Project United States JO 50% Our share Porgera Mine 8 Papua New Guinea JO 47.5% Our share Veladero Argentina JO 50% Our share Kibali 9 Democratic Republic of Congo JV 45% Equity Method Morila 9 Mali JV 40% Equity Method GNX 9,10 Chile JV 50% Equity Method Jabal Sayid 9 Saudi Arabia JV 50% Equity Method Kabanga Project 9,10 Tanzania JV 50% Equity Method Zaldívar 9 Chile JV 50% Equity Method 1 Unless otherwise noted, all of our joint arrangements are funded by contributions made by the parties sharing joint control in proportion to their economic interest. 2 For our JOs, we recognize our share of any assets, liabilities, revenues and expenses of the JO. 3 We consolidate our interests in Carlin, Cortez, Turquoise Ridge, Phoenix, Long Canyon, Loulo-Gounkoto, Tongon and Pueblo Viejo and record a non-controlling interest for the 38.5% , 38.5% , 38.5% , 38.5% , 38.5% , 20% , 10.3% and 40% , respectively, that we do not own. On September 17, 2019, Barrick acquired all of the shares of Acacia it did not own, bringing our ownership from 63.9% to 100% . When the Government of Tanzania’s 16% free-carried interest is made effective, which is expected to be as of January 1, 2020, our ownership will be brought down to 84% . 4 On July 1, 2019, Barrick’s Goldstrike (including 60% of South Arturo) and Newmont’s Carlin were contributed to Nevada Gold Mines, a joint venture with Newmont, and are now referred to as Carlin. This brought our ownership to 61.5% of Carlin (including 36.9% of South Arturo). 5 On July 1, 2019, Cortez was contributed to Nevada Gold Mines bringing our ownership down to 61.5% . 6 Barrick owned 75% of Turquoise Ridge through to the end of the second quarter of 2019, with our joint venture partner, Newmont, owning the remaining 25% . Turquoise Ridge was proportionately consolidated on the basis that the joint venture partners that have joint control have rights to the assets and obligations for the liabilities relating to the arrangement. On July 1, 2019, Barrick’s 75% interest in Turquoise Ridge and Newmont’s Twin Creeks and 25% interest in Turquoise Ridge were contributed to Nevada Gold Mines. This brought our ownership to 61.5% of Turquoise Ridge and Twin Creeks, now referred to as Turquoise Ridge. 7 Phoenix and Long Canyon were acquired as a result of the formation of Nevada Gold Mines on July 1, 2019, resulting in an ownership of 61.5% . 8 We have joint control given that decisions about relevant activities require unanimous consent of the parties to the joint operation. 9 Barrick has commitments of $324 million relating to its interest in the joint ventures. 10 These JVs are early stage exploration projects and, as such, do not have any significant assets, liabilities, income, contractual commitments or contingencies. c) Business Combinations On the acquisition of a business, the acquisition method of accounting is used, whereby the purchase consideration is allocated to the identifiable assets and liabilities on the basis of fair value at the date of acquisition. Provisional fair values allocated at a reporting date are finalized as soon as the relevant information is available, within a period not to exceed 12 months from the acquisition date with retroactive restatement of the impact of adjustments to those provisional fair values effective as at the acquisition date. Incremental costs related to acquisitions are expensed as incurred. When the cost of the acquisition exceeds the fair value of the identifiable net assets acquired, the difference is recorded as goodwill. If the fair value attributable to Barrick’s share of the identifiable net assets exceeds the cost of acquisition, the difference is recognized as a gain in the consolidated statement of income. Non-controlling interests represent the fair value of net assets in subsidiaries, as at the date of acquisition, that are not held by Barrick and are presented in the equity section of the consolidated balance sheet. d) Non-current Assets and Disposal Groups Held-for-Sale and Discontinued Operations Non-current assets and disposal groups are classified as assets held-for-sale (“HFS”) if it is highly probable that the value of these assets will be recovered primarily through sale rather than through continuing use. They are recorded at the lower of carrying amount and fair value less cost of disposal. Impairment losses on initial classification as HFS and subsequent gains and losses on remeasurement are recognized in the income statement. Once classified as HFS, property, plant and equipment are no longer amortized. The assets and liabilities are presented as HFS in the consolidated balance sheet when the sale is highly probable, the asset or disposal group is available for immediate sale in its present condition and management is committed to the sale, which should be expected to be completed within one year from the date of classification. A discontinued operation is a component of the Company that can be clearly distinguished from the rest of the Company and represents a major line of business or geographic area, and the value of this component is expected to be recovered primarily through sale rather than continuing use. Results of operations and any gain or loss from disposal are excluded from income before finance items and income taxes and are reported separately as income/loss from discontinued operations. e) Foreign Currency Translation The functional currency of the Company, for each subsidiary of the Company, and for joint arrangements and associates, is the currency of the primary economic environment in which it operates. The functional currency of all of our operations is the US dollar. We translate non-US dollar balances for these operations into US dollars as follows: • Property, plant and equipment (“PP&E”), intangible assets and equity method investments using the rates at the time of acquisition; • Fair value through other comprehensive income (“FVOCI”) equity investments using the closing exchange rate as at the balance sheet date with translation gains and losses permanently recorded in Other Comprehensive Income (“OCI”); • Deferred tax assets and liabilities using the closing exchange rate as at the balance sheet date with translation gains and losses recorded in income tax expense; • Other assets and liabilities using the closing exchange rate as at the balance sheet date with translation gains and losses recorded in other income/expense; and • Income and expenses using the average exchange rate for the period, except for expenses that relate to non-monetary assets and liabilities measured at historical rates, which are translated using the same historical rate as the associated non-monetary assets and liabilities. f) Revenue Recognition We record revenue when evidence exists that all of the following criteria are met: • The significant risks and rewards of ownership of the product have been transferred to the buyer; • Neither continuing managerial involvement to the degree usually associated with ownership, nor effective control over the goods sold, has been retained; • The amount of revenue can be reliably measured; • It is probable that the economic benefits associated with the sale will flow to us; and • The costs incurred or to be incurred in respect of the sale can be reliably measured. These conditions are generally satisfied when title passes to the customer. Gold Bullion Sales Gold bullion is sold primarily in the London spot market. The sale price is fixed on the date of sale based on the gold spot price. Generally, we record revenue from gold bullion sales at the time of physical delivery, which is also the date that title to the gold passes. Concentrate Sales Under the terms of concentrate sales contracts with independent smelting companies, gold and copper sales prices are provisionally set on a specified future date after shipment based on market prices. We record revenues under these contracts at the time of shipment, which is also when the risk and rewards of ownership pass to the smelting companies, using forward market gold and copper prices on the expected date that final sales prices will be determined. Variations between the price recorded at the shipment date and the actual final price set under the smelting contracts are caused by changes in market gold and copper prices, which result in the existence of an embedded derivative in accounts receivable. The embedded derivative is recorded at fair value each period until final settlement occurs, with changes in fair value classified as provisional price adjustments and included in revenue in the consolidated statement of income and presented separately in note 6 of these consolidated financial statements. Streaming Arrangements As the deferred revenue on streaming arrangements is considered variable consideration, an adjustment is made to the transaction price per unit each time there is a change in the underlying production profile of a mine (typically in the fourth quarter of each year). The change in the transaction price per unit results in a cumulative catch-up adjustment to revenue in the period in which the change is made, reflecting the new production profile expected to be delivered under the streaming agreement. A corresponding cumulative catch-up adjustment is made to accretion expense, reflecting the impact of the change in the deferred revenue balance. g) Exploration and Evaluation Exploration expenditures are the costs incurred in the initial search for mineral deposits with economic potential or in the process of obtaining more information about existing mineral deposits. Exploration expenditures typically include costs associated with prospecting, sampling, mapping, diamond drilling and other work involved in searching for ore. Evaluation expenditures are the costs incurred to establish the technical and commercial viability of developing mineral deposits identified through exploration activities or by acquisition. Evaluation expenditures include the cost of (i) establishing the volume and grade of deposits through drilling of core samples, trenching and sampling activities in an ore body that is classified as either a mineral resource or a proven and probable reserve; (ii) determining the optimal methods of extraction and metallurgical and treatment processes; (iii) studies related to surveying, transportation and infrastructure requirements; (iv) permitting activities; and (v) economic evaluations to determine whether development of the mineralized material is commercially justified, including scoping, prefeasibility and final feasibility studies. Exploration and evaluation expenditures are expensed as incurred unless management determines that probable future economic benefits will be generated as a result of the expenditures. Once the technical feasibility and commercial viability of a program or project has been demonstrated with a prefeasibility study, and we have recognized reserves in accordance with the Canadian Securities Administrators’ National Instrument 43-101, we account for future expenditures incurred in the development of that program or project in accordance with our policy for Property, Plant and Equipment, as described in note 2n. h) Production Stage A mine that is under construction is determined to enter the production stage when the project is in the location and condition necessary for it to be capable of operating in the manner intended by management. We use the following factors to assess whether these criteria have been met: (1) the level of capital expenditures compared to construction cost estimates; (2) the completion of a reasonable period of testing of mine plant and equipment; (3) the ability to produce minerals in saleable form (within specifications); and (4) the ability to sustain ongoing production of minerals. When a mine construction project moves into the production stage, the capitalization of certain mine construction costs ceases and costs are either capitalized to inventory or expensed, except for capitalizable costs related to property, plant and equipment additions or improvements, open pit stripping activities that provide a future benefit, underground mine development or expenditures that meet the criteria for capitalization in accordance with IAS 16 Property, Plant and Equipment. i) Earnings per Share Earnings per share is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding for the period. Diluted earnings per share reflects the potential dilution that could occur if additional common shares are assumed to be issued under securities that entitle their holders to obtain common shares in the future. For stock options, the number of additional shares for inclusion in diluted earnings per share calculations is determined using the treasury stock method. Under this method, stock options that have an exercise price less than the average market price of our common shares are assumed to be exercised and the proceeds are used to repurchase common shares at the average market price for the period. The incremental number of common shares issued under stock options and repurchased from proceeds is included in the calculation of diluted earnings per share. j) Taxation Current tax for each taxable entity is based on the local taxable income at the local statutory tax rate enacted or substantively enacted at the balance sheet date and includes adjustments to tax payable or recoverable in respect of previous periods. Deferred tax is recognized using the balance sheet method in respect of all temporary differences between the tax bases of assets and liabilities, and their carrying amounts for financial reporting purposes, except as indicated below. Deferred income tax liabilities are recognized for all taxable temporary differences, except: • Where the deferred income tax liability arises from the initial recognition of goodwill, or the initial recognition of an asset or liability in an acquisition that is not a business combination and, at the time of the acquisition, affects neither the accounting profit nor taxable profit or loss; and • In respect of taxable temporary differences associated with investments in subsidiaries and interests in joint arrangements, where the timing of the reversal of the temporary differences can be controlled and it is probable that the temporary differences will not reverse in the foreseeable future. Deferred income tax assets are recognized for all deductible temporary differences and the carry forward of unused tax assets and unused tax losses, to the extent that it is probable that taxable profit will be available against which the deductible temporary differences and the carry forward of unused tax assets and unused tax losses can be utilized, except: • Where the deferred income tax asset relating to the deductible temporary difference arises from the initial recognition of an asset or liability in an acquisition that is not a business combination and, at the time of the acquisition, affects neither the accounting profit nor taxable profit or loss; and • In respect of deductible temporary differences associated with investments in subsidiaries and interests in joint arrangements, deferred tax assets are recognized only to the extent that it is probable that the temporary differences will reverse in the foreseeable future and taxable profit will be available against which the temporary differences can be utilized. The carrying amount of deferred income tax assets is reviewed at each balance sheet date and reduced to the extent that it is no longer probable that sufficient taxable profit will be available to allow all or part of the deferred income tax asset to be utilized. To the extent that an asset not previously recognized fulfills the criteria for recognition, a deferred income tax asset is recorded. Deferred tax is measured on an undiscounted basis at the tax rates that are expected to apply in the periods in which the asset is realized or the liability is settled, based on tax rates and tax laws enacted or substantively enacted at the balance sheet date. Current and deferred tax relating to items recognized directly in equity are recognized in equity and not in the income statement. Royalties and Special Mining Taxes Income tax expense includes the cost of royalties and special mining taxes payable to governments that are calculated based on a percentage of taxable profit whereby taxable profit represents net income adjusted for certain items defined in the applicable legislation. Indirect Taxes Indirect tax recoverable is recorded at its undiscounted amount, and is disclosed as non-current if not expected to be recovered within twelve months. k) Other Investments Investments in publicly quoted equity securities that are neither subsidiaries nor associates are categorized as FVOCI pursuant to the irrevocable election available in IFRS 9 for these instruments. FVOCI equity investments (referred to as “other investments”) are recorded at fair value with all realized and unrealized gains and losses recorded permanently in OCI. l) Inventory Material extracted from our mines is classified as either ore or waste. Ore represents material that, at the time of extraction, we expect to process into a saleable form and sell at a profit. Raw materials are comprised of both ore in stockpiles and ore on leach pads as processing is required to extract benefit from the ore. Ore is accumulated in stockpiles that are subsequently processed into gold/copper in a saleable form. The recovery of gold and copper from certain oxide ores is achieved through the heap leaching process. Work in process represents gold/copper in the processing circuit that has not completed the production process, and is not yet in a saleable form. Finished goods inventory represents gold/copper in saleable form. Metal inventories are valued at the lower of cost and net realizable value. Cost is determined on a weighted average basis and includes all costs incurred, based on a normal production capacity, in bringing each product to its present location and condition. Cost of inventories comprises direct labor, materials and contractor expenses, including non-capitalized stripping costs; depreciation on PP&E including capitalized stripping costs; and an allocation of general and administrative costs. As ore is removed for processing, costs are removed based on the average cost per ounce/pound in the stockpile. Net realizable value is determined with reference to relevant market prices less applicable variable selling and processing costs. Mine operating supplies represent commodity consumables and other raw materials used in the production process, as well as spare parts and other maintenance supplies that are not classified as capital items. Provisions are recorded to reduce mine operating supplies to net realizable value, which is generally calculated by reference to its salvage or scrap value, when it is determined that the supplies are obsolete. Provisions are reversed to reflect subsequent recoveries in net realizable value where the inventory is still on hand. m) Royalties Certain of our properties are subject to royalty arrangements based on mineral production at the properties. The primary type of royalty is a net smelter return (NSR) royalty. Under this type of royalty we pay the holder an amount calculated as the royalty percentage multiplied by the value of gold production at market gold prices less third-party smelting, refining and transportation costs. Royalty expense is recorded on completion of the production or sales process in cost of sales. Other types of royalties include: • Net profits interest (NPI) royalty to other than a government, • Modified net smelter return (NSR) royalty, • Net smelter return sliding scale (NSRSS) royalty, • Gross proceeds sliding scale (GPSS) royalty, • Gross smelter return (GSR) royalty, • Net value (NV) royalty, • Land tenement (LT) royalty, and a • Gold revenue royalty. n) Property, Plant and Equipment Estimated useful lives of Major Asset Categories Buildings, plant and equipment 1 – 28 years Underground mobile equipment 5 - 7 years Light vehicles and other mobile equipment 1 - 7 years Furniture, computer and office equipment 1 - 7 years Buildings, Plant and Equipment At acquisition, we record buildings, plant and equipment at cost, including all expenditures incurred to prepare an asset for its intended use. These expenditures consist of: the purchase price; brokers’ commissions; and installation costs including architectural, design and engineering fees, legal fees, survey costs, site preparation costs, freight charges, transportation insurance costs, duties, testing and preparation charges. We capitalize costs that meet the asset recognition criteria. Costs incurred that do not extend the productive capacity or useful economic life of an asset are considered repairs and maintenance expense and are accounted for as a cost of the inventory produced in the period. Buildings, plant and equipment are depreciated on a straight-line basis over their expected useful life, which commences when the assets are considered available for use. Once buildings, plant and equipment are considered available for use they are measured at cost less accumulated depreciation and applicable impairment losses. Depreciation on equipment utilized in the development of assets, including open pit and underground mine development, is recapitalized as development costs attributable to the related asset. Mineral Properties Mineral properties consist of: the fair value attributable to mineral reserves and resources acquired in a business combination or asset acquisition; underground mine development costs; open pit mine development costs; capitalized exploration and evaluation costs; and capitalized interest. In addition, we incur project costs which are generally capitalized when the expenditures result in a future benefit. i) Acquired Mining Properties On acquisition of a mining property, we prepare an estimate of the fair value attributable to the proven and probable mineral reserves, mineral resources and exploration potential attributable to the property. The estimated fair value attributable to the mineral reserves and the portion of mineral resources considered to be probable of economic extraction at the time of the acquisition is depreciated on a units of production (“UOP”) basis whereby the denominator is the proven and probable reserves and the portion of mineral resources considered to be probable of economic extraction based on the current life of mine (“LOM”) plan that benefit from the development and are considered probable of economic extraction. The estimated fair value attributable to mineral resources that are not considered to be probable of economic extraction at the time of the acquisition is not subject to depreciation until the resources become probable of economic extraction in the future. The estimated fair value attributable to exploration licenses is recorded as an intangible asset and is not subject to depreciation until the property enters production. ii) Underground Mine Development Costs At our underground mines, we incur development costs to build new shafts, drifts and ramps that will enable us to physically access ore underground. The time over which we will continue to incur these costs depends on the mine life. These underground development costs are capitalized as incurred. Capitalized underground development costs are depreciated on a UOP basis, whereby the denominator is the estimated ounces/pounds of gold/copper in proven and probable reserves and the portion of resources considered probable of economic extraction based on the current LOM plan that benefit from the development and are considered probable of economic extraction. iii) Open Pit Mine Development Costs In open pit mining operations, it is necessary to remove overburden and other waste materials to access ore from which minerals can be extracted economically. The process of mining overburden and waste materials is referred to as stripping. Stripping costs incurred in order to provide initial access to the ore body (referred to as pre-production stripping) are capitalized as open pit mine development costs. Pre-production stripping costs are capitalized until an “other than de minimis” level of mineral is extracted, after which time such costs are either capitalized to inventory or, if it qualifies as an open pit stripping activity that provides a future benefit, to PP&E. We consider various relevant criteria to assess when an “other than de minimis” level of mineral is produced. Some of the criteria considered would include, but are not limited to, the following: (1) the amount of minerals mined versus total ounces in LOM ore; (2) the amount of ore tonnes mined versus total LOM expected ore tonnes mined; (3) the current stripping ratio versus the LOM strip ratio; and (4) the ore grade versus the LOM grade. Stripping costs incurred during the production stage of a pit are accounted for as costs of the inventory produced during the period that the stripping costs are incurred, unless these costs are expected to provide a future economic benefit to an identifiable component of the ore body. Components of the ore body are based on the distinct development phases identified by the mine planning engineers when determining the optimal development plan for the open pit. Production phase stripping costs generate a future economic benefit when the related stripping activity: (1) improves access to a component of the ore body to be mined in the future; (2) increases the fair value of the mine (or pit) as access to future mineral reserves becomes less costly; and (3) increases the productive capacity or extends the productive life of the mine (or pit). Production phase stripping costs that are expected to generate a future economic benefit are capitalized as open pit mine development costs. Capitalized open pit mine development costs are depreciated on a UOP basis whereby the denominator is the estimated ounces/pounds of gold/copper in proven and probable reserves and the portion of resources considered probable of economic extraction based on the current LOM plan that benefit from the development and are considered probable of economic extraction. Construction-in-Progress Assets under construction are capitalized as construction-in-progress until the asset is available for use. The cost of construction-in-progress comprises its purchase price and any costs directly attributable to bringing it into working condition for its intended use. Construction-in-progress amounts related to development projects are included in the carrying amount of the development project. Construction-in-progress amounts incurred at operating mines are presented as a separate asset within PP&E. Construction-in-progress also includes deposits on long lead items. Construction-in-progress is not depreciated. Depreciation commences once the asset is complete and available for use. Leasing Arrangements Leases are recognized as a right-of-use asset and a corresponding liability at the date at which the leased asset is available for use by the Company. Each lease payment is allocated between the liability and finance cost. The finance cost is charged to profit or loss over the lease period so as to produce a constant periodic rate of interest on the remaining balance of the liability for each period. The right-of-use asset is depreciated over the shorter of the asset's useful life and the lease term on a straight-line basis. Assets and liabilities arising from a lease are initially measured on a present value basis. Lease liabilities include the net present value of the following lease payments: • fixed payments (including in-substance fixed payments), less any lease incentives receivable; • variable lease payments that are based on an index or a rate; • amounts expected to be payable by the lessee under residual value guarantees; • the exercise price of a purchase option if the lessee is reasonably certain to exercise that option; and • payments of penalties for terminating the lease, if the lease term reflects the lessee exercising that option. The lease payments are discounted using the interest rate implicit in the lease. If that rate cannot be determined, the lessee’s incremental borrowing rate is used, being the rate that the lessee would have to pay to borrow the funds

CRITICAL JUDGMENTS, ESTIMATES,

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 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

ACQUISITIONS AND DIVESTITURES

ACQUISITIONS AND DIVESTITURES	12 Months Ended
	Dec. 31, 2019
Business Combinations and Discontinued Operations [Abstract]
ACQUISITIONS AND DIVESTITURES	ACQUISITIONS AND DIVESTITURES a) Massawa Project On December 10, 2019, Barrick announced that it and its Senegalese joint venture partner had reached an agreement to sell their aggregate 90% interest in the Massawa project (“Massawa”) in Senegal to Teranga Gold Corporation (“Teranga”) for total consideration of up to $430 million . The transaction is expected to close in the first quarter of 2020 and is subject to receipt of the Massawa exploitation license and residual exploration license from the Government of Senegal, certain other acknowledgments from the Government of Senegal and other customary closing conditions. As at December 31, 2019, all of the assets and liabilities of our interest in Massawa were classified as held-for-sale. The consideration consists of an up-front payment of $380 million , including a cash payment of approximately $300 million , Teranga common shares, plus a contingent payment of up to $50 million which is based upon the average gold price for the three year period immediately following closing. Barrick will receive 92.5% of the total purchase price for its interest in the Massawa project, with the balance to be received by Barrick’s local Senegalese partner. Barrick is providing $25 million of the $225 million syndicated debt financing secured by Teranga in connection with the transaction. On a pro forma basis, Barrick will hold 19,164,403 Teranga common shares, representing approximately 11.45% of Teranga’s issued and outstanding common shares on closing (calculated on a non-diluted basis). b) Kalgoorlie On November 28, 2019, we completed the sale of our 50% interest in the Kalgoorlie mine in Western Australia to Saracen Mineral Holdings Limited for total cash consideration of $750 million . The transaction resulted in a gain of $408 million for the year ended December 31, 2019. c) Acacia Mining plc On September 17, 2019, Barrick acquired all of the shares in Acacia Mining plc (“Acacia”) that we did not already own ( 36.1% ) through a share-for-share exchange of 0.168 Barrick shares and any Acacia Exploration Special Dividends for each ordinary share of Acacia. The Acacia Exploration Special Dividends and any deferred cash consideration dividends (if applicable) will be paid as a consequence of a sales process to realize value from the sale of certain Acacia exploration properties to be undertaken during the two-year period following closing. This transaction resulted in the issuance of 24,836,670 Barrick common shares or approximately 1% of Barrick’s share capital. The difference between the carrying value of the non-controlling interest and the September 16, 2019 closing price of Barrick's common shares issued was recorded in equity in the third quarter of 2019 in the amount of $70 million . Notwithstanding the completion of the Acacia transaction on September 17, 2019, we consolidated our interest in Acacia and recorded a non-controlling interest of 36.1% in the income statement for the entirety of the third quarter of 2019 as a matter of convenience. As at September 30, 2019, we derecognized the non-controlling interest on the balance sheet related to our former 63.9% ownership of Acacia to reflect our current 100% interest. On January 24, 2020, Barrick announced that the Company had ratified the creation of Twiga Minerals Corporation (“Twiga”) at a signing ceremony with the President of Tanzania, formalizing the establishment of a joint venture between Barrick and the Government of Tanzania (“GoT”) and resolution of all outstanding disputes between Barrick and the GoT , including the lifting of the previous concentrate export ban, effective immediately. The GoT will receive a free carried shareholding of 16% in each of the former Acacia mines (Bulyanhulu, Buzwagi and North Mara), and will receive its half of the economic benefits from taxes, royalties, clearing fees and participation in all cash distributions made by the mines and Twiga, after the recoupment of capital investments. Twiga will provide management services to the mines. Barrick and the GoT continue to fulfill their respective obligations to satisfy all conditions of the signed agreement, primarily with respect to the execution and delivery of formal termination documents for the settlement of all outstanding disputes between the two parties. Operating results are included at 100% from October 1, 2019 up until the GoT's 16% free-carried interest is made effective, which is expected to be January 1, 2020, and on an 84% basis thereafter. Refer to note 36 for further details on the agreement and impact on outstanding contingencies. d) Nevada Joint Venture On March 10, 2019, we entered into an implementation agreement with Newmont Mining Corporation, now Newmont Corporation, ("Newmont ") to create a joint venture combining our respective mining operations, assets, reserves and talent in Nevada, USA. This includes Barrick's Cortez, Goldstrike, Turquoise Ridge and Goldrush properties and Newmont's Carlin, Twin Creeks, Phoenix, Long Canyon and Lone Tree properties. Barrick is the operator of the joint venture and owns 61.5% , with Newmont owning the remaining 38.5% of the joint venture. On July 1, 2019, the transaction concluded establishing Nevada Gold Mines LLC ("Nevada Gold Mines"). Barrick, as the majority joint venture partner, has the right to appoint a majority of the board members and can therefore control decisions requiring majority approval including, but not limited to, LOM plans, budgets and capital projects. Therefore, we have determined that Barrick controls Nevada Gold Mines and began consolidating the operating results, cash flows and net assets from July 1, 2019 with a 38.5% non-controlling interest. We have determined that the transaction to acquire the Newmont mines represents a business combination with Barrick identified as the acquirer. We have undertaken a purchase price exercise to determine the fair value of the Newmont mines acquired and the fair value of the non-controlling interest of the Barrick mines contributed as consideration. The table below presents the final allocation of the purchase price to the assets and liabilities acquired. This allocation was completed in the fourth quarter of 2019. The $1,645 million difference between the carrying value and the fair value of the non-controlling interest in the Barrick mines contributed was recorded in equity in the third quarter of 2019. millions Fair value of non-controlling interest of Barrick mines contributed $ 3,897 Final fair value allocation of Newmont mines acquired Current assets $ 149 Inventory 970 Property, plant and equipment 3,534 Goodwill 2,520 Total assets $ 7,173 Current liabilities $ 119 Deferred income tax liabilities 268 Provisions 449 Total liabilities $ 836 Non-controlling interests 2,440 Net assets acquired $ 3,897 The Barrick mines in which we held 100% prior to the creation of Nevada Gold Mines (Cortez, Goldstrike and Goldrush) will continue to be accounted for at historical cost and continue to be consolidated with a non-controlling interest in these mines recorded as of July 1, 2019. Prior to July 1, 2019, our 75% interest in the Turquoise Ridge mine was accounted for as a joint operation and following its contribution to Nevada Gold Mines it has been consolidated with a non-controlling interest. It was determined that the contribution of our 75% share of the assets and liabilities of Turquoise Ridge to Nevada Gold Mines resulted in a requirement to remeasure our retained interest at fair value as Turquoise Ridge was previously accounted for as a joint operation and we now have control and consolidate. As a result, we recognized a gain of $ 1.9 billion in the third quarter of 2019. We primarily used a discounted cash flow model (being the net present value of expected future cash flows) to determine the fair value of the mining interests and used a replacement cost approach in determining the fair value of buildings, plant and equipment. Expected future cash flows are based on estimates of future gold prices inclusive of a $ 1,300 gold price and projected future revenues, estimated quantities of ore reserves and mineral resources, including expected conversions of resources to reserves, expected future production costs and capital expenditures based on the life of mine plans for the mines as at the acquisition date. Goodwill arose on the acquisition principally because of the following factors: 1) it combines high-quality gold reserves in one of the world’s most prolific gold districts, positioning the Company for sustainable growth; 2) the ability to optimize ore sources and production schedules across the joint venture; and 3) the recognition of a deferred tax liability for the difference between the assigned values and the tax bases of assets acquired and liabilities assumed at amounts that do not reflect fair value. The goodwill is not deductible for income tax purposes. Since July 1, 2019, the Newmont mines acquired contributed revenue of $1,184 million and net income of $322 million for the year ended December 31, 2019. If the acquisition had occurred on January 1, 2019, consolidated revenue and consolidated net income would have been $10,745 million and $4,500 million , respectively. Acquisition-related costs of approximately $30 million were expensed in 2019 and were presented as part of corporate development costs in exploration, evaluation & project expense. e) Randgold Resources Limited (“Randgold”) Merger On January 1, 2019, we acquired 100% of the issued and outstanding shares of Randgold Resources Limited (the “Merger”). Each Randgold shareholder received 6.1280 common shares of Barrick for each Randgold share, which resulted in the issuance of 583,669,178 Barrick common shares. After this share issuance, Barrick shareholders owned 66.7% , while former Randgold shareholders owned 33.3% , of the shares of the combined company. We have determined that this transaction represents a business combination with Barrick identified as the acquirer. Based on the December 31, 2018 closing share price of Barrick’s common shares, the total consideration of the acquisition was $ 7.9 billion. We began consolidating the operating results, cash flows and net assets of Randgold from January 1, 2019. Randgold was a publicly traded mining company with ownership interests in the following gold mines: Kibali in the Democratic Republic of Congo; Tongon in Côte d’Ivoire; Loulo-Gounkoto and Morila in Mali; and the Massawa project in Senegal. The table below presents the purchase cost and our allocation of the purchase price to the assets acquired and liabilities assumed. This allocation was finalized in the fourth quarter of 2019. millions Purchase Cost Fair value of equity shares issued $ 7,903 Fair value of restricted shares issued 6 Fair value of consideration $ 7,909 Final Fair Value at Acquisition Cash $ 751 Other current assets 319 Equity in investees 3,253 Property, plant and equipment 3,869 Other assets 230 Goodwill 1,672 Total assets $ 10,094 Current liabilities $ 539 Deferred income tax liabilities 688 Provisions 55 Debt 1 31 Total liabilities $ 1,313 Non-controlling interests 872 Net assets $ 7,909 1 Debt mainly relates to leases as a result of adopting IFRS16. In accordance with the acquisition method of accounting, the acquisition cost has been allocated to the underlying assets acquired and liabilities assumed, based primarily upon their estimated fair values at the date of acquisition. We primarily used a discounted cash flow model (being the net present value of expected future cash flows) to determine the fair value of the mining interests and used a replacement cost approach in determining the fair value of buildings, plant and equipment. Expected future cash flows are based on estimates of future gold prices and projected future revenues, estimated quantities of ore reserves and mineral resources, including expected conversions of resources to reserves, expected future production costs and capital expenditures based on the life of mine plans as at the acquisition date. The excess of acquisition cost over the net identifiable assets acquired represents goodwill. Goodwill arose on the acquisition principally because of the following factors: 1) it significantly strengthened Barrick’s position in the industry relative to high-quality gold reserves in many of the world’s most prolific gold districts, positioning the Company for sustainable growth; 2) it included the acquisition of a proven management team, with a shared vision and commitment to excellence, and a powerful financial base that will support sustainable investment in growth; and 3) the recognition of a deferred tax liability for the difference between the assigned values and the tax bases of assets acquired and liabilities assumed at amounts that do not reflect fair value. The goodwill is not deductible for income tax purposes. The fair value of accounts receivable was $193 million as at January 1, 2019, which was equivalent to the contractual amount. Prior to the Merger, Randgold had received various tax claims from the State of Mali in respect of its Mali operations, which totaled $267.7 million as at January 1, 2019. The total amount of the various tax claims, not including advances made in good faith to date, stood at $275 million as at December 31, 2019. During 2016, Randgold received payment demands in respect of certain of these disputed amounts, and consequently, from 2016 up to December 2018, Randgold paid tax advances to the State of Mali to support the resolution of the tax disputes; which, after offsetting other tax payments, resulted in a receiving being recorded of $41.1 million . As part of the purchase price allocation for the Merger, the fair value of this receivable was reduced to nil . In 2019, a further $60 million was paid as part of a settlement proposal to resolve outstanding assessments with respect to 2016 and prior year periods. This amount was recorded as a provision in the purchase price allocation. Refer to note 36 for further details. Since it has been consolidated from January 1, 2019, Randgold contributed revenue of $1,390 million and net income of $241 million for the year ended December 31, 2019. Acquisition-related costs of approximately $37 million were expensed in 2018 and were presented as part of corporate development costs in exploration, evaluation & project expense. f) Investment in Shandong Gold Mining On September 24, 2018, we entered into a mutual investment agreement with Shandong Gold Group Co., Ltd. (“Shandong Gold”), further strengthening Barrick’s partnership with one of China’s leading mining companies. Under the agreement, Shandong Gold was able to purchase up to $300 million of Barrick shares, and Barrick was able to invest an equivalent amount in shares of Shandong Gold Mining Co., Ltd., a publicly listed company controlled by Shandong Gold within a 12-month period. Shares were purchased on the open market and purchases made by Barrick were accounted for as other investments with changes in fair value recorded in OCI. As at December 31, 2019 , Barrick has purchased approximately $120 million of shares of Shandong Gold Mining Co., Ltd.

SEGMENT INFORMATION

SEGMENT INFORMATION	12 Months Ended
	Dec. 31, 2019
Operating Segments [Abstract]
SEGMENT INFORMATION	SEGMENT INFORMATION Starting in the first quarter of 2019, management reviews the operating results and assesses performance of our operations in Nevada at an individual minesite level; therefore our Cortez and Goldstrike minesites, previously presented as Barrick Nevada, have been presented separately. Barrick’s business is organized into nineteen minesites and two projects. Barrick’s CODM reviews the operating results, assesses performance and makes capital allocation decisions at the minesite, Company and/or project level. Upon completion of the Merger, Mark Bristow, as President and Chief Executive Officer, has assumed this role. Each individual minesite and the Pascua-Lama project are operating segments for financial reporting purposes. Following the Merger and the Nevada Gold Mines and Acacia transactions, we re-evaluated our reportable operating segments and no longer report on our interests in the following non-core properties: Lagunas Norte and Pascua-Lama. Our presentation of our reportable operating segments consists of nine gold mines (Carlin, Cortez, Turquoise Ridge, Pueblo Viejo, Loulo-Gounkoto, Kibali, Veladero, Porgera and North Mara). The remaining operating segments, including our remaining gold mines, copper mines and projects, have been grouped into an “other” category and will not be reported on individually. Segment performance is evaluated based on a number of measures including operating income before tax, production levels and unit production costs. Certain costs are managed on a consolidated basis and are therefore not reflected in segment income. Prior period figures have been restated to reflect this disaggregation. Consolidated Statements of Income Information Cost of Sales For the year ended December 31, 2019 Revenue Direct mining, royalties and community relations Depreciation Exploration, evaluation and project expenses Other expenses (income) 1 Segment income (loss) Carlin 2,3 $1,862 $998 $312 $17 $4 $531 Cortez 2 1,325 511 240 8 16 550 Turquoise Ridge 2,4 688 285 140 4 — 259 Pueblo Viejo 2 1,409 525 196 12 — 676 Loulo-Gounkoto 2 1,007 456 295 12 6 238 Kibali 505 207 196 3 (9 ) 108 Veladero 386 208 115 3 3 57 Porgera 403 242 42 2 4 113 North Mara 2 462 213 97 — 6 146 Other Mines 2 2,175 1,426 554 19 46 130 Reportable segment income $10,222 $5,071 $2,187 $80 $76 $2,808 Share of equity investee (505 ) (207 ) (196 ) (3 ) 9 (108 ) Segment income $9,717 $4,864 $1,991 $77 $85 $2,700 Consolidated Statements of Income Information Cost of Sales For the year ended December 31, 2018 Revenue Direct mining, royalties and community relations Depreciation Exploration, evaluation and project expenses Other expenses (income) 1 Segment income (loss) Carlin 2,3 $1,066 $624 $262 $19 ($5 ) $166 Cortez 2 1,589 442 386 16 19 726 Turquoise Ridge 2,4 331 178 28 — (1 ) 126 Pueblo Viejo 2 1,333 547 185 21 1 579 Loulo-Gounkoto 2 — — — — — — Kibali — — — — — — Veladero 366 189 121 2 1 53 Porgera 269 170 42 — 1 56 North Mara 2 423 202 62 — 12 147 Other Mines 2 1,866 1,401 334 14 69 48 Reportable segment income $7,243 $3,753 $1,420 $72 $97 $1,901 Share of equity investee — — — — — — Segment income $7,243 $3,753 $1,420 $72 $97 $1,901 1 Includes accretion expense, which is included with finance costs in the consolidated statements of income. For the year ended December 31, 2019 , accretion expense was $53 million ( 2018 : $53 million). 2 Includes non-controlling interest portion of revenues, cost of sales and segment income (loss) for the year ended December 31, 2019 , for Pueblo Viejo, $566 million, $286 million, $274 million ( 2018 : $535 million, $289 million, $237 million), Nevada Gold Mines, $1,049 million , $704 million , $329 million (2018:$ nil , $ nil , $ nil ), Tanzania mines, $169 million, $125 million, $31 million ( 2018 : $240 million, $163 million, $ 61 million), Loulo-Gounkoto $201 million , $150 million , $48 million ( 2018 : $ nil , $ nil , $ nil ) and Tongon $39 million , $41 million , $(2) million ( 2018 : $ nil , $ nil , $ nil ). 3 On July 1, 2019, Barrick's Goldstrike and Newmont's Carlin mines were contributed to Nevada Gold Mines and are now operated as one segment referred to as Carlin. As a result, the amounts presented represent Goldstrike (including South Arturo) up until June 30, 2019, and the combined results of Carlin (including Goldstrike) thereafter including non-controlling interest. Refer to note 4. 4 Barrick owned 75% of Turquoise Ridge up until June 30, 2019, with our joint venture partner, Newmont, owning the remaining 25% . Turquoise Ridge was accounted for as a joint operation and proportionately consolidated. On July 1, 2019, Barrick's 75% interest in Turquoise Ridge and Newmont's Twin Creeks and 25% interest in Turquoise Ridge were contributed to Nevada Gold Mines and are now operated as one segment referred to as Turquoise Ridge. The figures presented in this table are based on our 75% interest in Turquoise Ridge until June 30, 2019 and the combined results of Turquoise Ridge (including Twin Creeks) thereafter including non-controlling interest. Refer to note 4. Reconciliation of Segment Income to Income from Continuing Operations Before Income Taxes For the years ended December 31 2019 2018 Segment income $2,700 $1,901 Other cost of sales/amortization 1 (56 ) (47 ) Exploration, evaluation and project expenses not attributable to segments (265 ) (311 ) General and administrative expenses (212 ) (265 ) Other (expense) income not attributable to segments 3,132 (46 ) Impairment reversals (charges) 1,423 (900 ) Loss on currency translation (109 ) (136 ) Closed mine rehabilitation (5 ) 13 Income from equity investees 165 46 Finance costs, net (includes non-segment accretion) 2 (416 ) (492 ) Gain on non-hedge derivatives 3 — — Income (loss) before income taxes 4 $6,357 ($237 ) 1 Includes realized hedge losses of $ nil ( 2018 : $4 million losses ). 2 Includes debt extinguishment losses of $3 million ( 2018 : $29 million losses). 3 Includes unrealized non-hedge losses of $ nil ( 2018 : $1 million losses ). 4 Includes non-controlling interest portion of revenues, cost of sales and non-segment income (loss) for the year ended December 31, 2019 , for Tanzania, $ nil , $ nil , $(17) million (2018: $ nil , $1 million , $2 million ) and Nevada Gold Mines, $ nil , $6 million , $1 million (2018: $ nil , $ nil , $ nil ). Geographic Information Non-current assets Revenue 1 As at December 31, 2019 As at December 31, 2018 2019 2018 United States $16,514 $6,857 $4,190 $3,025 Mali 4,662 — 1,007 — Dominican Republic 4,303 3,468 1,409 1,334 Democratic Republic of Congo 3,218 — — — Chile 2,158 2,679 — — Zambia 1,705 735 393 502 Argentina 1,571 1,723 386 366 Tanzania 1,009 1,059 671 664 Canada 490 368 305 226 Côte d'Ivoire 424 — 384 — Saudi Arabia 368 408 — — Papua New Guinea 361 348 403 269 Peru 170 145 279 449 Australia — 396 290 408 Unallocated 552 467 — — Total $37,505 $18,653 $9,717 $7,243 1 Presented based on the location from which the product originated. Capital Expenditures Information Segment Capital Expenditures 1 As at December 31, 2019 As at December 31, 2018 Carlin $303 $195 Cortez 327 349 Turquoise Ridge 125 62 Pueblo Viejo 107 145 Loulo-Gounkoto 198 — Kibali 43 — Veladero 95 143 Porgera 50 62 North Mara 57 82 Other Mines 384 284 Reportable segment total $1,689 $1,322 Other items not allocated to segments 110 121 Total $1,799 $1,443 Share of equity investee (43 ) — Total $1,756 $1,443 1 Segment capital expenditures are presented for internal management reporting purposes on an accrual basis. Capital expenditures in the consolidated statements of cash flow are presented on a cash basis. In 2019 , cash expenditures were $1,701 million ( 2018 : $1,400 million) and the increase in accrued expenditures was $55 million ( 2018 : $43 million increase ).

REVENUE

REVENUE	12 Months Ended
	Dec. 31, 2019
Revenue [abstract]
REVENUE	REVENUE For the years ended December 31 2019 2018 Gold sales 1 Spot market sales $9,084 $6,575 Concentrate sales 101 25 Provisional pricing adjustments 1 — $9,186 $6,600 Copper sales 1 Copper concentrate sales $371 $549 Provisional pricing adjustments 22 (37 ) $393 $512 Other sales 2 $138 $131 Total $9,717 $7,243 1 Revenues include amounts transferred from OCI to earnings for commodity cash flow hedges. 2 Revenues from the sale of by-products from our gold and copper mines including silver revenue of $97 million (2018: $121 million ). Principal Products All of our gold mining operations produce gold in doré form, except Porgera and Phoenix, which produce both gold doré and gold concentrate. Gold doré is unrefined gold bullion bars usually consisting of 90% gold that is refined to pure gold bullion prior to sale to our customers. Concentrate is a processing product containing the valuable ore mineral from which most of the waste mineral has been eliminated. Our Lumwana and Phoenix mines produce a concentrate that primarily contains copper. Incidental revenues from the sale of by-products, primarily copper, silver and energy at our gold mines, are classified within other sales. Provisional Copper and Gold Sales We have provisionally priced sales for which price finalization, referenced to the relevant copper and gold index, is outstanding at the balance sheet date. Our exposure at December 31, 2019 to the impact of movements in market commodity prices for provisionally priced sales is set out in the following table: Volumes subject to final pricing Impact on net income before taxation of 10% movement in market price US$ As at December 31 2019 2018 2019 2018 Copper pounds 39 51 $11 $14 Gold ounces 15 — 2 — At December 31, 2019 , our provisionally priced copper sales subject to final settlement were recorded at average prices of $ 2.80 /lb ( 2018 : $2.71 /lb). At December 31, 2019 , our provisionally priced gold sales subject to final settlement were recorded at an average price of $1,524 /oz. The sensitivities in the above tables have been determined as the impact of a 10 % change in commodity prices at each reporting date, while holding all other variables, including foreign currency exchange rates, constant.

COST OF SALES

COST OF SALES	12 Months Ended
	Dec. 31, 2019
Analysis of income and expense [abstract]
COST OF SALES	COST OF SALES Gold Copper Other 4 Total For the years ended December 31 2019 2018 2019 2018 2019 2018 2019 2018 Direct mining cost 1,2,3 $4,274 $3,130 $224 $344 $6 $7 $4,504 $3,481 Depreciation 1,902 1,253 100 170 30 34 2,032 1,457 Royalty expense 308 196 34 39 — — 342 235 Community relations 30 42 3 5 — — 33 47 Total $6,514 $4,621 $361 $558 $36 $41 $6,911 $5,220 1 Direct mining cost related to gold and copper includes charges to reduce the cost of inventory to net realizable value of $ 26 million ( 2018 : $ 199 million). Refer to note 17. 2 Direct mining cost related to gold includes the costs of extracting by-products and export duties paid in Argentina. 3 Includes employee costs of $ 1,350 million ( 2018 : $ 1,001 million). 4 Other includes realized hedge gains and losses and corporate amortization.

EXPLORATION, EVALUATION AND PRO

EXPLORATION, EVALUATION AND PROJECT EXPENSES	12 Months Ended
	Dec. 31, 2019
Exploration For and Evaluation of Mineral Resources [Abstract]
EXPLORATION, EVALUATION AND PROJECT EXPENSES	EXPLORATION, EVALUATION AND PROJECT EXPENSES For the years ended December 31 2019 2018 Global exploration and evaluation 1 $143 $121 Advanced project costs: Pascua-Lama 49 77 Other 20 36 Corporate development 2 51 60 Business improvement and innovation 10 44 Minesite exploration and evaluation 1 69 45 Total exploration, evaluation and project expenses $342 $383 1 Approximates the impact on operating cash flow. 2 2019 includes $ 44 million in transaction costs related to the Nevada Gold Mines, Acacia and Kalgoorlie transactions. 2018 includes $ 37 million in transaction costs related to the merger with Randgold.

OTHER EXPENSE (INCOME)

OTHER EXPENSE (INCOME)	12 Months Ended
	Dec. 31, 2019
Other Operating Income (Expense) [Abstract]
OTHER EXPENSE (INCOME)	OTHER EXPENSE (INCOME) For the years ended December 31 2019 2018 Other Expense: Litigation 1 26 68 Write-offs 2 3 51 Bulyanhulu reduced operations program costs 3 24 29 Bank charges 16 22 Insurance payment to Porgera JV — 13 Acacia transaction costs 4 18 — Tanzania - other 11 11 Other 28 28 Total other expense $126 $222 Other Income: Gain on sale of long-lived assets 5 ($441 ) ($68 ) Remeasurement of Turquoise Ridge to fair value 6 (1,886 ) — Remeasurement of silver sale liability 7 (628 ) — Lumwana tax settlement 8 (216 ) — Peru tax disputes settlement (18 ) — Insurance proceeds related to Kalgoorlie — (24 ) Interest Income (20 ) (22 ) Other (17 ) (18 ) Total other income ($3,226 ) ($132 ) Total ($3,100 ) $90 1 2018 primarily consists of Tanzania legal fees, and a settlement dispute regarding a historical supplier contract acquired as part of the Equinox acquisition in 2011. 2 2018 primarily relates to a $ 43 million write-off of a Western Australia long-term stamp duty receivable. 3 Primarily relates to care and maintenance costs. 4 Incurred by Acacia Mining Plc. 5 2019 includes a gain of $408 million from the sale of Kalgoorlie (refer to note 4). 2018 includes a gain of $45 million from the sale of a royalty asset at Acacia. 6 Refer to note 4 for further details. 7 Refer to note 29 for further details. 8 Refer to note 3 for further details.

IMPAIRMENT REVERSALS

IMPAIRMENT REVERSALS	12 Months Ended
	Dec. 31, 2019
Impairment Of Assets [Abstract]
IMPAIRMENT (REVERSALS) CHARGES	IMPAIRMENT (REVERSALS) CHARGES For the years ended December 31 2019 2018 Impairment charges (reversals) of long-lived assets 1 ($1,423 ) $722 Impairment of intangibles 1 — 24 Impairment of goodwill 1 — 154 Total ($1,423 ) $900 1 Refer to note 21 for further details. IMPAIRMENT AND REVERSAL OF NON-CURRENT ASSETS Summary of impairments (reversals) For the year ended December 31, 2019 , we recorded net impairment reversals of $1,423 million ( 2018 : impairment losses of $746 million ) for non-current assets and impairment charges of $ nil ( 2018 : $154 million ) for goodwill, as summarized in the following table: For the years ended December 31 2019 2018 Lumwana ($947 ) $— Pueblo Viejo (865 ) — Pascua-Lama 296 (7 ) Cortez 57 9 Lagunas Norte 12 405 Golden Sunlight 9 — Veladero 3 246 Carlin 2 5 Equity method investments — 30 Acacia exploration sites — 24 Other 10 34 Total impairment (reversals) losses of long-lived assets ($1,423 ) $746 Veladero goodwill — 154 Total goodwill impairment losses $— $154 Total impairment (reversals) losses ($1,423 ) $900 2019 Indicators of Impairment/Reversal Fourth Quarter 2019 In the fourth quarter of 2019, as per our policy, we performed our annual goodwill impairment test and identified no impairments. Also in the fourth quarter, we reviewed the updated LOM plans for our other operating minesites for indicators of impairment or reversal. We noted an indicator of impairment at Pascua-Lama and an indicator of impairment reversal at Pueblo Viejo. Pascua-Lama 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 . It is our intention to update our geological understanding of the orebody and this process is expected to take a number of years to complete. We determined that this was an indicator of impairment and concluded that the carrying value of Pascua-Lama exceeded the FVLCD and we recorded a non-current asset impairment of $296 million , based on a FVLCD of $398 million . In a related matter, we have updated the Wheaton silver sale obligation due to the significant uncertainty with the timing and quantity of the delivery of any future silver production from Pascua-Lama. Refer to note 29 for further details. Pueblo Viejo The progression of our engineering and evaluation work on the process plant expansion and additional tailings facility at Pueblo Viejo represented an impairment reversal trigger in the fourth quarter. In conjunction with the increase in the long-term gold price assumption, this has resulted in an improvement in the life of mine cash flows for the mine site . We have also included an additional risk premium of 2% in the calculation of FVLCD given the expansion project has not been fully permitted nor approved for investment. Upon review of these changes and associated sensitivities, we concluded that the mine’s FVLCD exceeded its carrying value and we recorded a non-current asset impairment reversal of $ 865 million , which represents a full reversal of the non-current asset impairment recorded in 2015. Third Quarter 2019 Lumwana On September 28, 2018, as part of their 2019 budget, the Zambian government introduced changes to the current mining tax regime. The changes included an increase in royalty rates by 1.5% , the introduction of a 10% royalty on copper production if the copper price increases above a certain price, the imposition of a 5% import duty on copper concentrates, the non-deductibility of mineral royalties paid or payable for income tax purposes, and the replacement of the VAT with a non-refundable sales tax, although any outstanding VAT claims will be settled through the current refund mechanism. In the fourth quarter of 2018, the Zambian government finalized the changes to the current tax regime, which was effective January 1, 2019, with the exception of the changes to the non-refundable sales tax. In August 2019, the Zambian government alleviated this fiscal uncertainty by withdrawing the legislative Bill relating to the non-refundable sales tax and introduced a new Bill in September 2019 which contains measures to limit the claiming of VAT on certain items used by Lumwana. In addition to these external impacts, we have updated our LOM plan for Lumwana based on the significant reductions achieved in 2019 in unit mining costs and improvements in plant availability. This reduction in the cost base has allowed us to lower the cut-off grade which is expected to deliver a 5-year increase in the mine life of Lumwana. Finally, during the third quarter of 2019, we also updated our long-term copper price assumption to $3.00 per pound (previously $2.85 per pound). As a result of these indicators of impairment reversal, an assessment was undertaken and a partial non-current asset impairment reversal of $947 million was recognized in the third quarter of 2019, as we identified that Lumwana’s fair value less costs of disposal ("FVLCD") of $1.4 billion exceeded its carrying value. The key assumptions and estimates used in determining the FVLCD are long-term copper prices of $3.00 per pound and a weighted average cost of capital (“WACC”) of 10.4% . Nevada Gold Mines On July 1, 2019 we formed Nevada Gold Mines, a joint venture combining the respective mining operations, assets, reserves and talent from Barrick and Newmont in Nevada, USA. This includes Barrick's Cortez, Goldstrike, Turquoise Ridge and Goldrush properties and Newmont's Carlin, Twin Creeks, Phoenix, Long Canyon and Lone Tree properties. Through the purchase price allocation exercise, we identified various assets with fair values less than their carrying values. Although IFRS did not require us to remeasure the net assets of Goldstrike, Cortez and Goldrush to fair value, we identified indicators of impairment for certain land holdings and specific Cortez Hills Open Pit infrastructure assets and an impairment of $60 million was recorded in the third quarter of 2019. Refer to note 4 for further information. Second Quarter 2019 Acacia On May 21, 2019, Barrick met with the Directors and senior management of Acacia and presented a proposal to acquire all of the shares it did not already own in Acacia through a share for share exchange of 0.153 Barrick shares for each ordinary share of Acacia. The exchange ratio was based on the 20-day volume weighted average trading prices of Acacia and Barrick as at market close in London and New York on May 20, 2019 and implied a value for 100% of Acacia of $787 million . On July 19, 2019, we announced that the Boards of Barrick and Acacia reached an agreement on the terms of a recommended offer by Barrick for the 36.1% of Acacia that we did not own at that time. Under the terms of the agreement, the minority shareholders would exchange each Acacia share for 0.168 Barrick shares and would also be entitled to special dividends under certain conditions. The offer received shareholder approval in the third quarter of 2019 and the transaction closed on September 17, 2019. During the second quarter of 2019, Acacia updated its life of mine plans and subsequent to that, the Barrick technical team had an opportunity to conduct detailed due diligence on the updated life of mine plans for the Acacia assets and risk adjust the value of the assets. The value implied by Barrick's adjusted life of mine plans was deemed to be an indicator of impairment in the second quarter of 2019. An impairment assessment was undertaken in the second quarter and Barrick assessed the carrying value of the individual cash generating units within Acacia (Bulyanhulu, North Mara and Buzwagi) and determined that the carrying amounts were recoverable. Therefore, no impairment was recognized. The key assumptions and estimates used in determining the fair value less cost to dispose are short-term and long-term gold prices of $1,250 per ounce, NAV multiples of 1.0 - 1.1 and a WACC of 6.5% - 6.9% . Other assumptions include a 50% economic share of future economic benefits generated by the mines for the GoT, which includes taxes, royalties, tolls and 16% free carry interest in the mines. Management assumed the resumption of concentrate sales and exports commencing in Q3 2019 and the resumption of production from underground mining at Bulyanhulu in 2020. The WACC applied was lower than the 2018 and 2017 impairment tests for the Acacia CGUs, based on lower risk levels given the state of Barrick’s negotiations with the GoT at that time and the expectation that an agreement would be signed once the recommended offer to purchase the minority shareholdings of Acacia as described above had closed, and because the economic sharing of benefits had been modeled into the cash flows. 2018 Indicators of Impairment/Reversal Third and Fourth Quarter 2018 In the fourth quarter of 2018, as per our policy, we performed our annual goodwill impairment test and identified an impairment at our Veladero mine. Also in the fourth quarter, we reviewed the updated LOM plans for our other operating minesites for indicators of impairment or reversal. We noted an indicator of impairment at Acacia and at our Lagunas Norte and Lumwana mines and no indicators of impairment reversal. Veladero In the third quarter of 2018, the Argentine government re-established customs duties for all exports from Argentina. Effective for the period of September 2018 to December 31, 2020, exports of doré are subject to a 12% duty, capped at ARS 4.00 per USD exported. Based on our initial analysis performed in the third quarter of 2018, the re-establishment of the customs duties was not expected to have a significant adverse effect on the long-term fair value of the mine and the Company was engaged in ongoing discussions with the federal government to clarify the impact of the export duty on Veladero’s operations given the existing tax stability agreement As such, no indicator of impairment was identified in the third quarter of 2018. Upon the finalization of Veladero’s updated LOM plan in the fourth quarter of 2018, we observed a decrease in the mine’s cash flows reflecting a higher cost structure related to increasing government imposts (including new conditions associated with the heap leach permits that require the contribution of 1.5% of the mine’s revenues towards a trust commencing when Phase 6 of the leach pad begins production and the re-establishment of the export duties for all exports from Argentina effective September 2018), country risk and increasing energy costs. Upon performing our goodwill impairment test in the fourth quarter of 2018, we identified that the mine’s carrying value exceeded its FVLCD and we recorded a goodwill impairment of $154 million and a non-current asset impairment of $246 million, based upon a FVLCD of $674 million. Lagunas Norte In the third quarter of 2018, we updated a feasibility study for proposed projects relating to the processing of carbonaceous materials ("CMOP") and the treatment of refractory sulfide ore ("PMR") at Lagunas Norte in Peru. Based upon the findings of the feasibility study, it was determined not to proceed with the PMR project at that time. As a result, an impairment assessment was undertaken and a non-current asset impairment of $405 million was recognized in the third quarter of 2018, as we identified that Lagunas Norte's carrying value exceeded its FVLCD of $150 million . The key assumptions and estimates used in determining the FVLCD are short-term and long-term gold prices of $ 1,200 per ounce, NAV multiple of 1.1 - 1.2 and a weighted average cost of capital (“WACC”) of 3.8% . In the fourth quarter of 2018, we determined that the proposed project relating to CMOP at Lagunas Norte in Peru was not feasible in its current form and that more detailed studies and analysis are required before proceeding with the project. As such, a decision was made to not proceed with the CMOP project at this time and an inventory impairment of $166 million was recorded at December 31, 2018 to reduce the carrying value of the CMOP ounces in inventory to nil. The decision to not proceed with the CMOP project was considered an indicator of impairment at December 31, 2018 and an impairment assessment was performed using the fourth quarter 2018 gold price assumption of $1,250 per ounce. No further impairment was identified for the CGU as the carrying value of the mine subsequent to the inventory impairment was nil and no impairment reversal was identified as the mine’s FVLCD was negative. Lumwana On September 28, 2018, as part of their 2019 budget, the Zambian government introduced changes to the current mining tax regime. The changes included an increase in royalty rates by 1.5% , the introduction of a 10% royalty on copper production if the copper price increases above a certain price, the imposition of a 5% import duty on copper concentrates, the non-deductibility of mineral royalties paid or payable for income tax purposes, and the replacement of the VAT with a non-refundable sales tax, although any outstanding VAT claims will be settled through the current refund mechanism. The new mining tax regime had a proposed effective date of January 1, 2019; however, discussions were ongoing with the Zambian government in an effort to mitigate some of the impact prior to the proposed changes being enacted. However, based upon our initial analysis, it was our expectation that Lumwana would remain cash flow positive at current copper prices even if a positive outcome was not reached through the discussions with the government. Given the uncertainty over the final outcome of the tax changes and the need to assess the full impact to the life of mine plan once those tax changes were finalized, no indicator of impairment was identified in the third quarter of 2018. In the fourth quarter of 2018, the Zambian government finalized the changes to the current tax regime, which were expected to be effective January 1, 2019, with the exception of the changes to the non-refundable sales tax, which were expected to be finalized in the first quarter of 2019 and become effective April 1, 2019. The finalization of the changes to the mining tax regime was considered an indicator of impairment in the fourth quarter of 2018 and as such an impairment assessment was performed for Lumwana. Although the increase in the royalty rates negatively impacted the cash flows of the mine, this impact was largely offset by improvements in Lumwana’s cost structure arising primarily from the re-negotiation of contracts with suppliers under more favorable terms. As a result, no impairment was identified as the FVCLD exceeded the carrying value. We determined we would reassess the impact of the non-refundable sales tax on the mine’s cash flows once the outcome was finalized. Acacia In the fourth quarter of 2018, potential indicators of impairment were identified in relation to Acacia, specifically the ongoing uncertainty surrounding a potential resolution of the dispute between Acacia and the GoT, the revised Bulyanhulu business model, the updated geological models at North Mara and Bulyanhulu as well as the decline in Acacia’s market capitalization below its carrying value throughout 2018. As a result, an impairment assessment was undertaken in the fourth quarter, with no impairment loss identified. The assessment assumed the resumption of concentrate sales and of operations at Bulyanhulu will occur in the first quarter of 2020 and in late 2020, respectively, which is a further six month delay from the assumptions used in the impairment assessment carried out in the second quarter of 2018. The assessment also reflected the targeted outcome for a negotiated resolution in line with the proposed framework as reflected in the most recent LOM, and that VAT refunds will recommence and historic carried forward tax losses will continue to be available to offset against future taxable profits from January 1, 2020. Second Quarter 2018 Acacia In the second quarter of 2018, potential indicators of impairment were identified in relation to Acacia, specifically the ongoing uncertainty surrounding a potential resolution between Barrick and the GoT as well as the sustained decline in Acacia's market capitalization below its carrying value over the first half of 2018. As a result, an impairment assessment was undertaken in the second quarter, with no impairment loss identified. The assessment assumed that the resumption of concentrate sales and of operations at Bulyanhulu will occur in the second quarter of 2019 and in late 2019, respectively. The assessment also reflected the targeted outcome for a negotiated resolution in line with the proposed framework as reflected in the most recent LOM. The key assumptions and estimates used in determining the FVLCD are short– and long-term gold prices of $1,200 per ounce and a WACC of 11% , consistent with the rate used for the impairment assessment completed at December 31, 2017 in the calculation of FVLCD. FVLCD is most sensitive to changes in these key assumptions and to the timing of resolution of the export ban; therefore, a sensitivity analysis was performed based on a decrease in the long-term gold price of $100 per ounce and an increase in the WACC of 1% , and a further six-month delay in the resolution of the export ban. A $ 100 per ounce decrease in the long-term gold price would result in the recognition of a non-current asset impairment at Bulyanhulu of $98 million, net of tax. A 1% increase in the WACC and a further delay of six months in the resolution of the export ban would not result in the recognition of an impairment. However, should a negotiated resolution not eventuate, the recoverable value of Bulyanhulu may be further impacted, resulting in a review at such time. Subsequent to the second quarter close, OreCorp, which is Acacia's joint venture partner in the Nyanzaga project in Tanzania, executed its option under the earn-in agreement to increase its ownership in the project to 51% through a $3 million payment to Acacia. Furthermore, Acacia signed a conditional agreement to sell its remaining 49% interest in the project to OreCorp for $7 million and a net smelter royalty capped at $15 million based on future production. As a result of the agreement, and Acacia's commitment to a sale, Acacia expects to recover the value of the asset through sale and not value in use and as such has valued the asset at FVLCD of $10 million, resulting in the recognition of an impairment loss of $24 million in the second quarter of 2018. Kabanga In January 2018, new mining regulations relating to mineral rights were issued in Tanzania. These regulations canceled all retention licenses and declared that they no longer have legal effect and any previous holder, along with any third party, of a retention license would need to apply for a new prospecting or mining license for that area. Our 50% interest in the Kabanga project (a joint venture between Barrick and Glencore) was affected by these changes. While we have now submitted our application for a prospecting license, the operating environment for mining projects in Tanzania remains challenging and we have determined that our carrying amount for the project is not recoverable under the current circumstances. As such, we considered this an indicator of impairment, resulting in the recognition of a $30 million impairment in the second quarter of 2018, which is equal to the full carrying value of our equity method investment in the Kabanga JV. Key Assumptions The recoverable amount has been determined based on its estimated FVLCD, which has been determined to be greater than the VIU amounts. The key assumptions and estimates used in determining the FVLCD are related to commodity prices, discount rates, NAV multiples for gold assets, operating costs, exchange rates, capital expenditures, the LOM production profile, continued license to operate, evidence of value from current year disposals and for our projects the expected start of production. In addition, assumptions are related to observable market evaluation metrics, including identification of comparable entities, and associated market values per ounce and per pound of reserves and/or resources, as well as the valuation of resources beyond what is included in LOM plans. Gold For the gold segments where a recoverable amount was required to be determined, FVLCD was determined by calculating the net present value (“NPV”) of the future cash flows expected to be generated by the mines and projects within the segments (level 3 of the fair value hierarchy). The estimates of future cash flows were derived from the most recent LOM plans and, where the LOM plans exclude a material portion of total reserves and resources, we assign value to reserves and resources not considered in these models. Based on observable market or publicly available data, including forward prices and equity sell-side analyst forecasts, we make an assumption of future gold and silver prices to estimate future revenues. The future cash flows for each gold mine are discounted using a real WACC, which reflects specific market risk factors for each mine. Some gold companies trade at a market capitalization greater than the NPV of their expected cash flows. Market participants describe this as a “NAV multiple”, which represents the multiple applied to the NPV to arrive at the trading price. The NAV multiple is generally understood to take account of a variety of additional value factors such as the exploration potential of the mineral property, namely the ability to find and produce more metal than what is currently included in the LOM plan or reserve and resource estimates, and the benefit of gold price optionality. As a result, we applied a specific NAV multiple to the NPV of each CGU within each gold segment based on the NAV multiples observed in the market in recent periods and that we judged to be appropriate to the CGU. Pascua-Lama The FVLCD for Pascua-Lama was determined by considering observable market values for comparable assets expressed as dollar per ounce of measured and indicated resources (level 3 of the fair value hierarchy). In the absence of a LOM plan for Pascua-Lama, we used the market approach. The observable market values were adjusted, where appropriate, for country risk if the comparable asset was in a different country. Assumptions Our gold price assumption used in our fourth quarter 2019 impairment testing is $ 1,300 per ounce. Our gold price assumption used in our 2018 impairment testing was $ 1,250 per ounce. The increase in the gold price assumption from 2018 was not considered an indicator of impairment reversal as the increased price would not, in isolation, have resulted in the identification of an impairment reversal at our mines with reversible impairments. The other key assumptions used in our impairment testing, based on the CGUs tested in each year, are summarized in the table below: 2019 2018 Copper price per lb (long-term) $3.00 $2.85 WACC - gold (range) 3%-7% 4%-11% WACC - gold (avg) 4 % 7 % WACC - copper n/a 10 % NAV multiple - gold (avg) 1.2 1.05 LOM years - gold (avg) 19 15 Value per ounce of gold $20 - $30 n/a Value per ounce of silver $0.28 - $0.42 n/a Sensitivities Should there be a significant increase or decline in commodity prices, we would take actions to assess the implications on our life of mine plans, including the determination of reserves and resources, and the appropriate cost structure for the operating segments. The recoverable amount of the CGUs would be affected by these changes and also be impacted by other market factors such as changes in net asset value multiples and the value per ounce/pound of comparable market entities. We performed a sensitivity analysis on each CGU that was tested as part of the goodwill impairment test, as well as those CGUs which have had an impairment or impairment reversal in recent years. We flexed the gold and copper prices and the WACC, which are the most significant assumptions that impact the impairment calculations. We first assumed a +/- $100 per ounce change in our gold price assumptions or a +/- $0.25 per pound change in copper price assumptions, while holding all other assumptions constant. We then assumed a +/- 1% change in our WACC, independent from the change in gold or copper prices, while holding all other assumptions constant. These sensitivities help to determine the theoretical impairment losses or impairment reversals that would be recorded with these changes in gold or copper prices and WACC. If the gold price per ounce was decreased by $100 , a goodwill impairment of $529 million would be recognized for Loulo-Gounkoto and the fourth quarter 2019 impairment reversal at Pueblo Viejo would not be recognized. If the gold price was increased by $100 or the WACC was decreased by 1% , a full reversal of the $246 million non-current asset impairment at Veladero would be recognized. If the copper price per pound was decreased by $0.25 , the non-current asset impairment reversal recognized for Lumwana in the third quarter of 2019 would have been lower by $437 million , with a similar increase in the copper price per pound resulting in a increase in the impairment reversal by $437 million . In addition, for our Pascua-Lama project, we have determined our valuation based on a market approach. The key assumption that impacts the impairment calculations is the value per ounce of gold and per ounce of silver based on an analysis of comparable companies. We assumed a negative 10% change for the assumption of gold and silver value per ounce, while holding all other assumptions constant, and based on the results of the impairment testing performed in fourth quarter of 2019 for Pascua-Lama, the fair value of the CGU would have been reduced by approximately $40 million . We note that this sensitivity identifies the decrease in the value that, in isolation, would cause the carrying value of the CGU to exceed its recoverable amount. For Pascua-Lama, this value decrease is linear to the decrease in value per ounce. The carrying value of the CGUs that are most sensitive to changes in the key assumptions used in the FVLCD calculation are: As at December 31, 2019 Carrying Value Loulo-Gounkoto $4,198 Lumwana 1,307 Veladero 692 Bulyanhulu 579 Pascua-Lama 1 153 1 The carrying value of Pascua-Lama is presented net of the Wheaton streaming liability of $253 million (refer to note 29).

GENERAL AND ADMINISTRATIVE EXPE

GENERAL AND ADMINISTRATIVE EXPENSES	12 Months Ended
	Dec. 31, 2019
General and Administrative Expenses [Abstract]
GENERAL AND ADMINISTRATIVE EXPENSES	GENERAL AND ADMINISTRATIVE EXPENSES For the years ended December 31 2019 2018 Corporate administration 1 $185 $239 Operating segment administration 27 26 Total 2 $212 $265 1 Includes $ 18 million ( 2018 : $ 63 million) related to one-time severance payments. 2 Includes employee costs of $ 131 million ( 2018 : $ 156 million).

INCOME TAX EXPENSE

INCOME TAX EXPENSE	12 Months Ended
	Dec. 31, 2019
Income Tax [Abstract]
INCOME TAX EXPENSE	Current tax for each taxable entity is based on the local taxable income at the local statutory tax rate enacted or substantively enacted at the balance sheet date and includes adjustments to tax payable or recoverable in respect of previous periods. INCOME TAX EXPENSE For the years ended December 31 2019 2018 Tax on profit Current tax Charge for the year $685 $423 Adjustment in respect of prior years 25 45 $710 $468 Deferred tax Origination and reversal of temporary differences in the current year $1,112 $821 Adjustment in respect of prior years (39 ) (91 ) $1,073 $730 Income tax expense $1,783 $1,198 Tax expense related to continuing operations Current Canada $5 $— International 705 468 $710 $468 Deferred Canada $— $628 International 1,073 102 $1,073 $730 Income tax expense $1,783 $1,198 Reconciliation to Canadian Statutory Rate For the years ended December 31 2019 2018 At 26.5% statutory rate $1,684 ($63 ) Increase (decrease) due to: Allowances and special tax deductions 1 (129 ) (59 ) Impact of foreign tax rates 2 (264 ) (4 ) Expenses not tax deductible 78 74 Impairment charges not recognized in deferred tax assets 45 168 Goodwill impairment charges not tax deductible — 54 Net currency translation losses on deferred tax balances 43 41 Tax impact from pass-through entities and equity accounted investments (140 ) (15 ) Current year tax losses not recognized in deferred tax assets 8 100 Sale of 50% interest in Kalgoorlie 12 — De-recognition of deferred tax assets 4 814 United States adjustment to one-time toll charge — (49 ) Adjustments in respect of prior years (13 ) 3 Increase to income tax related contingent liabilities 21 — Impact of tax rate changes (35 ) — Dominican Republic tax audit — 42 United States withholding taxes 30 (107 ) Other withholding taxes 24 14 Mining taxes 412 184 Other items 3 1 Income tax expense $1,783 $1,198 1 We are able to claim certain allowances and tax deductions unique to extractive industries that result in a lower effective tax rate. 2 We operate in multiple foreign tax jurisdictions that have tax rates different than the Canadian statutory rate. Currency Translation Deferred tax balances are subject to remeasurement for changes in currency exchange rates each period. This is required in countries where tax is paid in local currency and accounts are prepared in local GAAP. The most significant balances are Argentine deferred tax liabilities. In 2019 and 2018 , tax expense of $75 million and $41 million , respectively, primarily arose from translation losses due to the weakening of the Argentine peso against the US dollar. These translation losses are included within deferred tax expense (recovery). In 2019, deferred tax balances for legacy Randgold assets in Mali and Côte d’Ivoire required remeasurement at year end. De-recognition of Deferred Tax Assets In the fourth quarter of 2018, we recorded a deferred tax expense of $673 million related to de-recognition of the deferred tax asset in Canada, and a deferred tax expense of $ 141 million related to de-recognition of the deferred tax asset in Peru. The de-recognition of the deferred tax asset in Canada follows the merger with Randgold and management’s focus on growing the business globally, particularly on assets outside of Canada. This required us to reassess the level of repatriated earnings expected in Canada, and Canadian income thereon to support the deferred tax asset. The de-recognition of the deferred tax asset does not constrain our ability to use Canadian carry forward tax losses against future income in Canada; however, we did not expect to be able to use these losses in the foreseeable future as a result of the change in strategy in the fourth quarter of 2018. The de-recognition of the deferred tax asset in Peru in the fourth quarter of 2018 follows management’s review of expected future earnings. The associated impairment of inventory at Lagunas Norte was also driven by the fourth quarter of 2018 change in our expected approach to financing future reclamation activities in Peru. Based on these reviews in Canada and Peru, it was determined that the realizability of these deferred tax assets was no longer probable. United States Withholding Taxes In the fourth quarter of 2018, primarily due to restructuring associated with the merger with Randgold, we concluded that going forward, we would reinvest our future undistributed earnings of our United States subsidiaries in the foreseeable future. As a result of our reassessment, we recorded a deferred tax recovery of $107 million. In 2019, we reassessed our intentions on the current and future undistributed earnings of our United States subsidiaries due to the formation of Nevada Gold Mines. Based on the free cash flow that we expect Nevada Gold Mines to generate, together with other factors, we concluded that it was no longer our intent to indefinitely reinvest our current and future undistributed earnings of our United States subsidiaries. Therefore in the fourth quarter of 2019, we recognized an increase in our income tax provisions in the amount of $30 million , representing withholding tax on undistributed United States earnings. Framework for former Acacia Mining Operations in Tanzania On October 20, 2019, Barrick announced that it had reached an agreement with the GoT to settle all disputes between the GoT and the mining companies formerly operated by Acacia but now managed by Barrick. The final agreements were submitted to the Tanzanian Attorney General for review and legalization. On January 24, 2020, Barrick announced that the Company had ratified the creation of Twiga at a signing ceremony with the President of Tanzania, formalizing the establishment of a joint venture between Barrick and the GoT and resolution of all outstanding disputes between Barrick and the GoT , including the lifting of the previous concentrate export ban, effective immediately The terms of the signed agreement are consistent with those previously announced, including the payment of $300 million to settle all outstanding tax and other disputes (the “Settlement Payment”); the lifting of the concentrate export ban; the sharing of future economic benefits from the mines on a 50 /50 basis; and a dispute resolution mechanism that provides for binding international arbitration. The 50 /50 division of economic benefits will be maintained through an annual true-up mechanism, which will not account for the Settlement Payment. The Settlement Payment will be paid in installments, with an initial payment of $100 million to the GoT following the resumption of mineral concentrate exports. Five subsequent annual payments of $40 million each will be made, starting on the first anniversary of the fulfillment of all conditions of the signed agreement, subject to certain cash flow conditions. A tax provision of $128 million had been recorded prior to December 31, 2016 in respect of tax disputes related to Acacia. Of this amount, $70 million was recorded in 2016. In the third quarter of 2017, an additional amount of $172 million was recorded as current tax expense. See note 36 for further information with respect to these matters. 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 resulting in a total of $ 216 million recognized in Other Income in 2019 (refer to note 9).

EARNINGS PER SHARE

EARNINGS PER SHARE	12 Months Ended
	Dec. 31, 2019
Earnings per share [abstract]
EARNINGS PER SHARE	EARNINGS (LOSS) PER SHARE For the years ended December 31 ($ millions, except shares in millions and per share amounts in dollars) 2019 2018 Basic Diluted Basic Diluted Net (loss) income $4,574 $4,574 ($1,435 ) ($1,435 ) Net income attributable to non-controlling interests (605 ) (605 ) (110 ) (110 ) Net (loss) income attributable to the equity holders of Barrick Gold Corporation $3,969 $3,969 ($1,545 ) ($1,545 ) Weighted average shares outstanding 1,758 1,758 1,167 1,167 Basic and diluted earnings (loss) per share data attributable to the equity holders of Barrick Gold Corporation $2.26 $2.26 ($1.32 ) ($1.32 )

FINANCE COSTS, NET

FINANCE COSTS, NET	12 Months Ended
	Dec. 31, 2019
Finance Costs [Abstract]
FINANCE COSTS, NET	FINANCE COSTS, NET For the years ended December 31 2019 2018 Interest 1 $435 $452 Amortization of debt issue costs 2 5 Amortization of discount (premium) (1 ) (1 ) Interest on lease liabilities 6 — Gain on interest rate hedges (6 ) (3 ) Interest capitalized 2 (14 ) (9 ) Accretion 75 87 Loss on debt extinguishment 3 3 29 Finance income (31 ) (15 ) Total $469 $545 1 Interest in the consolidated statements of cash flow is presented on a cash basis. In 2019 , cash interest paid was $333 million ( 2018 : $350 million). 2 For the year ended December 31, 2019 , the general capitalization rate was 6.30% ( 2018 : 6.10% ). 3 2018 loss arose from a make-whole repurchase of the outstanding principal on the 4.40% notes due 2021.

CASH FLOW _ OTHER ITEMS

CASH FLOW – OTHER ITEMS	12 Months Ended
	Dec. 31, 2019
Cash Flow Statement [Abstract]
CASH FLOW – OTHER ITEMS	CASH FLOW – OTHER ITEMS Operating Cash Flows - Other Items For the years ended December 31 2019 2018 Adjustments for non-cash income statement items: Stock-based compensation expense $71 $33 Income from investment in equity investees (note 16) (165 ) (46 ) Increase (decrease) in estimate of rehabilitation costs at closed mines 5 (13 ) Net inventory impairment charges (note 17) 26 199 Remeasurement of silver sale liability (note 29) (628 ) — Lumwana tax settlement (note 3) (216 ) — Change in other assets and liabilities (113 ) (169 ) Settlement of rehabilitation obligations (93 ) (66 ) Other operating activities ($1,113 ) ($62 ) Cash flow arising from changes in: Accounts receivable ($118 ) ($9 ) Inventory 9 (111 ) Other current assets (89 ) (109 ) Accounts payable (108 ) 19 Other current liabilities (51 ) 37 Change in working capital ($357 ) ($173 ) Investing Cash Flows – Other Items For the years ended December 31 2019 2018 Dividends received from equity method investments (note 16) $ 125 $ — Shareholder loan repayments from equity method investments 92 — Funding of equity method investments (note 16) (2 ) (5 ) Other (2 ) — Other investing activities $ 213 $ (5 )

INVESTMENTS

INVESTMENTS	12 Months Ended
	Dec. 31, 2019
Interests In Other Entities [Abstract]
INVESTMENTS	INVESTMENTS Equity Accounting Method Investment Continuity Kibali Jabal Sayid Zaldívar Other Total At January 1, 2018 $— $206 $975 $32 $1,213 Equity pick-up (loss) from equity investees — 39 14 (7 ) 46 Funds invested — — — 5 5 Impairment charges — — — (30 ) (30 ) At December 31, 2018 $— $245 $989 $— $1,234 Acquisitions 3,195 — — 58 3,253 Equity pick-up from equity investees 98 51 16 — 165 Funds invested — — — 2 2 Dividends paid (75 ) — (50 ) — (125 ) Shareholder loan repayment — — — (2 ) (2 ) At December 31, 2019 $3,218 $296 $955 $58 $4,527 Summarized Equity Investee Financial Information Kibali Jabal Sayid Zaldívar For the years ended December 31 2019 2018 2019 2018 2019 2018 Revenue $1,123 $— $315 $296 $685 $599 Cost of sales (excluding depreciation) 460 — 133 158 442 404 Depreciation 435 — 53 39 172 118 Finance expense — — 1 2 12 — Other expense (income) 18 — (2 ) 9 10 25 Income from continuing operations before tax $210 $— $130 $88 $49 $52 Income tax expense (16 ) — (27 ) (10 ) (17 ) (24 ) Income from continuing operations after tax $194 $— $103 $78 $32 $28 Total comprehensive income $194 $— $103 $78 $32 $28 Summarized Balance Sheet Kibali Jabal Sayid Zaldívar For the years ended December 31 2019 2018 2019 2018 2019 2018 Cash and equivalents $453 $— $43 $128 $139 $129 Other current assets 1 338 — 67 68 632 602 Total current assets $791 $— $110 $196 $771 $731 Non-current assets 4,623 — 464 482 1,823 1,927 Total assets $5,414 $— $574 $678 $2,594 $2,658 Current financial liabilities (excluding trade, other payables & provisions) $11 $— $— $48 $19 $18 Other current liabilities 35 — 63 41 99 85 Total current liabilities $46 $— $63 $89 $118 $103 Non-current financial liabilities (excluding trade, other payables & provisions) 44 — 150 331 11 12 Other non-current liabilities 648 — 14 14 536 546 Total non-current liabilities $692 $— $164 $345 $547 $558 Total liabilities $738 $— $227 $434 $665 $661 Net assets $4,676 $— $347 $244 $1,929 $1,997 1 Zaldívar other current assets include inventory of $ 543 million ( 2018 : $ 533 million). The information above reflects the amounts presented in the financial information of the joint venture adjusted for differences between IFRS and local GAAP. Reconciliation of Summarized Financial Information to Carrying Value Kibali Jabal Sayid 1 Zaldívar Opening net assets $— $244 $1,997 Acquisition 4,632 — — Income for the period 194 103 32 Dividend (150 ) — (100 ) Closing net assets, December 31 $4,676 $347 $1,929 Barrick's share of net assets 2,107 173 965 Equity earnings adjustment — — (10 ) Goodwill recognition 1,111 123 — Carrying value $3,218 $296 $955 1 A $75 million non-interest bearing shareholder loan due from the Jabal Sayid JV is presented as part of Other Assets (refer to note 22).

INVENTORIES INVENTORIES (Notes)

INVENTORIES INVENTORIES (Notes)	12 Months Ended
	Dec. 31, 2019
Disclosure of inventories [Abstract]
Disclosure of inventories [text block]	INVENTORIES Gold Copper As at December 31, 2019 As at December 31, 2018 As at December 31, 2019 As at December 31, 2018 Raw materials Ore in stockpiles $2,794 $2,106 $155 $151 Ore on leach pads 507 405 — — Mine operating supplies 617 496 52 66 Work in process 141 146 — — Finished products 220 176 103 2 $4,279 $3,329 $310 $219 Non-current ore in stockpiles 1 (2,300 ) (1,696 ) — — $1,979 $1,633 $310 $219 1 Ore that we do not expect to process in the next 12 months is classified within other long-term assets. Inventory Impairment Charges For the years ended December 31 2019 2018 Pierina $12 $4 Carlin 6 — Cortez 4 — Golden Sunlight 4 10 Lagunas Norte — 166 Lumwana — 18 Porgera — 1 Inventory impairment charges 1 $26 $199 1 Impairment charges in 2018 primarily relate to stockpiles at Lagunas Norte (refer to note 21). Ore in Stockpiles As at December 31, 2019 As at December 31, 2018 Gold Carlin $1,136 $841 Pueblo Viejo 649 603 Turquoise Ridge 258 13 Cortez 174 242 Loulo-Gounkoto 167 — North Mara 136 70 Lagunas Norte 73 49 Veladero 52 39 Buzwagi 47 83 Phoenix 39 — Porgera 33 37 Tongon 29 — Kalgoorlie — 125 Other 1 4 Copper Lumwana 155 151 $2,949 $2,257 Ore on Leach pads As at December 31, 2019 As at December 31, 2018 Gold Lagunas Norte $148 $168 Veladero 123 138 Carlin 64 — Cortez 50 81 Phoenix 44 — Long Canyon 43 — Turquoise Ridge 33 — Pierina 2 18 $507 $405 Purchase Commitments At December 31, 2019 , we had purchase obligations for supplies and consumables of approximately $1,681 million ( 2018 : $ 1,972 million).

ACCOUNTS RECEIVABLE AND OTHER C

ACCOUNTS RECEIVABLE AND OTHER CURRENT ASSETS	12 Months Ended
	Dec. 31, 2019
Subclassifications of assets, liabilities and equities [abstract]
ACCOUNTS RECEIVABLE AND OTHER CURRENT ASSETS	ACCOUNTS RECEIVABLE AND OTHER CURRENT ASSETS As at December 31, 2019 As at December 31, 2018 Accounts receivable Amounts due from concentrate sales $68 $76 Other receivables 295 172 $363 $248 Other current assets Derivative assets $1 $2 Goods and services taxes recoverable 1 302 182 Prepaid expenses 174 72 Other 2 88 51 $565 $307 1 Primarily includes VAT and fuel tax recoverables of $141 million in Mali, $61 million in Tanzania, $50 million in Zambia, $26 million in Argentina, and $10 million in the Dominican Republic ( Dec. 31, 2018 : $ nil , $67 million , $60 million , $22 million , and $12 million , respectively). 2 2019 balance includes $50 million asset reflecting the final settlement of Zambian tax matters. Refer to note 3 for further details.

PROPERTY, PLANT AND EQUIPMENT

PROPERTY, PLANT AND EQUIPMENT	12 Months Ended
	Dec. 31, 2019
Property, plant and equipment [abstract]
PROPERTY, PLANT AND EQUIPMENT	PROPERTY, PLANT AND EQUIPMENT Buildings, plant and equipment 1 Mining property costs subject to depreciation 2,4 Mining property costs not subject to depreciation 2,3 Total At January 1, 2019 Net of accumulated depreciation $3,600 $6,258 $2,968 $12,826 Additions 5,6 298 3,458 1,371 5,127 Capitalized interest — — 14 14 Acquisitions 8 3,473 2,270 1,660 7,403 Divestiture 9 (127 ) (106 ) (27 ) (260 ) Disposals (22 ) — — (22 ) Depreciation (1,107 ) (907 ) — (2,014 ) Impairment reversals (charges) 990 742 (309 ) 1,423 Transfers 7 648 573 (1,221 ) — Assets held for sale — — (356 ) (356 ) At December 31, 2019 $7,753 $12,288 $4,100 $24,141 At December 31, 2019 Cost $18,544 $27,268 $16,050 $61,862 Accumulated depreciation and impairments (10,791 ) (14,980 ) (11,950 ) (37,721 ) Net carrying amount – December 31, 2019 $7,753 $12,288 $4,100 $24,141 Buildings, plant and equipment 1 Mining property costs subject to depreciation 2,4 Mining property costs not subject to depreciation 2,3 Total At January 1, 2018 Cost $14,209 $20,938 $14,637 $49,784 Accumulated depreciation and impairments (9,996 ) (14,416 ) (11,566 ) (35,978 ) Net carrying amount – January 1, 2018 $4,213 $6,522 $3,071 $13,806 Additions 6 (21 ) 199 1,050 1,228 Capitalized interest — — 9 9 Disposals (7 ) — — (7 ) Depreciation (790 ) (772 ) — (1,562 ) Impairment reversals (charges) (394 ) (178 ) (76 ) (648 ) Transfers 7 599 487 (1,086 ) — At December 31, 2018 $3,600 $6,258 $2,968 $12,826 At December 31, 2018 Cost $14,750 $21,624 $14,610 $50,984 Accumulated depreciation and impairments (11,150 ) (15,366 ) (11,642 ) (38,158 ) Net carrying amount – December 31, 2018 $3,600 $6,258 $2,968 $12,826 1 Additions include $85 million of transitional adjustments for the recognition of leased right-of-use assets upon the Company’s adoption of IFRS 16 on January 1, 2019 (refer to note 2), as well as $ 49 million of right-of-use assets for lease arrangements entered into during the year ended December 31, 2019. Depreciation includes depreciation for leased right-of-use assets of $ 25 million for the year ended December 31, 2019 . The net carrying amount of leased right-of-use assets was $ 75 million as at December 31, 2019 . 2 Includes capitalized reserve acquisition costs, capitalized development costs and capitalized exploration and evaluation costs other than exploration license costs included in intangible assets. 3 Assets not subject to depreciation include construction-in-progress, projects and acquired mineral resources and exploration potential at operating minesites and development projects. 4 Assets subject to depreciation include the following items for production stage properties: acquired mineral reserves and resources, capitalized mine development costs, capitalized stripping and capitalized exploration and evaluation costs. 5 Additions include $3,422 million of remeasurement gain related to the change in ownership of Turquoise Ridge acquired though the Nevada Joint Venture. Refer to note 4 for further details. 6 Additions include revisions to the capitalized cost of closure and rehabilitation activities. 7 Primarily relates to long-lived assets that are transferred between categories within PP&E once they are placed into service. 8 Acquisitions include assets acquired as part of the Merger and the establishment of Nevada Gold Mines. Refer to note 4 for further details. 9 Relates to the sale of our 50% interest in Kalgoorlie. Refer to note 4 for further details. a) Mineral Property Costs Not Subject to Depreciation Carrying amount at Dec. 31, 2019 Carrying amount at Dec. 31, 2018 Construction-in-progress 1 $1,009 $786 Acquired mineral resources and exploration potential 1,504 124 Projects Pascua-Lama 754 1,245 Norte Abierto 649 639 Donlin Gold 184 174 $4,100 $2,968 1 Represents assets under construction at our operating minesites. b) Changes in Gold and Copper Mineral Life of Mine Plan As part of our annual business cycle, we prepare updated estimates of proven and probable gold and copper mineral reserves and the portion of resources considered probable of economic extraction for each mineral property. This forms the basis for our LOM plans. We prospectively revise calculations of amortization expense for property, plant and equipment amortized using the UOP method, where the denominator is our LOM ounces. The effect of changes in our LOM on amortization expense for 2019 was a $ 49 million decrease ( 2018 : $ 85 million decrease ). c) Capital Commitments In addition to entering into various operational commitments in the normal course of business, we had commitments of approximately $ 383 million at December 31, 2019 ( 2018 : $ 82 million) for construction activities at our sites and projects. d) Other Lease Disclosure The Company leases various buildings, plant and equipment as part of the normal course of operations. Lease terms are negotiated on an individual basis and contain a wide range of different terms and conditions. Refer to note 25 for the lease maturity analysis. Included in net income for 2019 are short-term payments and variable lease payments not included in the measurement of lease liabilities of $56 million and $97 million , respectively.

GOODWILL AND OTHER INTANGIBLE A

GOODWILL AND OTHER INTANGIBLE ASSETS	12 Months Ended
	Dec. 31, 2019
Goodwill and Other Intangible Assets [Abstract]
GOODWILL AND OTHER INTANGIBLE ASSETS	GOODWILL AND OTHER INTANGIBLE ASSETS a) Intangible Assets Water rights 1 Technology 2 Supply contracts 3 Exploration potential 4 Total Opening balance January 1, 2018 $71 $9 $11 $164 $255 Amortization and impairment losses 5 — (1 ) (3 ) (24 ) (28 ) Closing balance December 31, 2018 $71 $8 $8 $140 $227 Additions 1 — — — 1 Amortization — (1 ) (1 ) — (2 ) Closing balance December 31, 2019 $72 $7 $7 $140 $226 Cost $72 $17 $39 $298 $426 Accumulated amortization and impairment losses — (10 ) (32 ) (158 ) (200 ) Net carrying amount December 31, 2019 $72 $7 $7 $140 $226 1 Relates to water rights in South America, and will be amortized through cost of sales when we begin using these in the future. 2 The amount is amortized through cost of sales using the UOP method over LOM ounces of the Pueblo Viejo mine, with no assumed residual value. 3 Relates to a supply agreement with Michelin North America Inc. to secure a supply of tires and is amortized over the effective term of the contract through cost of sales. 4 Exploration potential consists of the estimated fair value attributable to exploration licenses acquired as a result of a business combination or asset acquisition. The carrying value of the licenses will be transferred to PP&E when the development of attributable mineral resources commences. 5 Exploration potential impairment losses in 2018 relate to the Nyanzaga project in Tanzania. b) Goodwill Closing balance December 31, 2018 Additions Disposals Closing balance December 31, 2019 Carlin $— $1,294 $— $1,294 Cortez 514 210 — 724 Turquoise Ridge 528 194 — 722 Phoenix — 119 — 119 Goldrush — 175 — 175 Hemlo 63 — — 63 Kalgoorlie 71 — (71 ) — Loulo-Gounkoto — 1,672 — 1,672 Total $1,176 $3,664 ($71 ) $4,769 On a total basis, the gross amount and accumulated impairment losses are as follows: Cost $12,211 Accumulated impairment losses December 31, 2019 (7,442 ) Net carrying amount December 31, 2019 $4,769

IMPAIRMENT AND REVERSAL OF NON-

IMPAIRMENT AND REVERSAL OF NON-CURRENT ASSETS	12 Months Ended
	Dec. 31, 2019
Impairment Of Assets [Abstract]
IMPAIRMENT AND REVERSAL OF NON-CURRENT ASSETS	IMPAIRMENT (REVERSALS) CHARGES For the years ended December 31 2019 2018 Impairment charges (reversals) of long-lived assets 1 ($1,423 ) $722 Impairment of intangibles 1 — 24 Impairment of goodwill 1 — 154 Total ($1,423 ) $900 1 Refer to note 21 for further details. IMPAIRMENT AND REVERSAL OF NON-CURRENT ASSETS Summary of impairments (reversals) For the year ended December 31, 2019 , we recorded net impairment reversals of $1,423 million ( 2018 : impairment losses of $746 million ) for non-current assets and impairment charges of $ nil ( 2018 : $154 million ) for goodwill, as summarized in the following table: For the years ended December 31 2019 2018 Lumwana ($947 ) $— Pueblo Viejo (865 ) — Pascua-Lama 296 (7 ) Cortez 57 9 Lagunas Norte 12 405 Golden Sunlight 9 — Veladero 3 246 Carlin 2 5 Equity method investments — 30 Acacia exploration sites — 24 Other 10 34 Total impairment (reversals) losses of long-lived assets ($1,423 ) $746 Veladero goodwill — 154 Total goodwill impairment losses $— $154 Total impairment (reversals) losses ($1,423 ) $900 2019 Indicators of Impairment/Reversal Fourth Quarter 2019 In the fourth quarter of 2019, as per our policy, we performed our annual goodwill impairment test and identified no impairments. Also in the fourth quarter, we reviewed the updated LOM plans for our other operating minesites for indicators of impairment or reversal. We noted an indicator of impairment at Pascua-Lama and an indicator of impairment reversal at Pueblo Viejo. Pascua-Lama 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 . It is our intention to update our geological understanding of the orebody and this process is expected to take a number of years to complete. We determined that this was an indicator of impairment and concluded that the carrying value of Pascua-Lama exceeded the FVLCD and we recorded a non-current asset impairment of $296 million , based on a FVLCD of $398 million . In a related matter, we have updated the Wheaton silver sale obligation due to the significant uncertainty with the timing and quantity of the delivery of any future silver production from Pascua-Lama. Refer to note 29 for further details. Pueblo Viejo The progression of our engineering and evaluation work on the process plant expansion and additional tailings facility at Pueblo Viejo represented an impairment reversal trigger in the fourth quarter. In conjunction with the increase in the long-term gold price assumption, this has resulted in an improvement in the life of mine cash flows for the mine site . We have also included an additional risk premium of 2% in the calculation of FVLCD given the expansion project has not been fully permitted nor approved for investment. Upon review of these changes and associated sensitivities, we concluded that the mine’s FVLCD exceeded its carrying value and we recorded a non-current asset impairment reversal of $ 865 million , which represents a full reversal of the non-current asset impairment recorded in 2015. Third Quarter 2019 Lumwana On September 28, 2018, as part of their 2019 budget, the Zambian government introduced changes to the current mining tax regime. The changes included an increase in royalty rates by 1.5% , the introduction of a 10% royalty on copper production if the copper price increases above a certain price, the imposition of a 5% import duty on copper concentrates, the non-deductibility of mineral royalties paid or payable for income tax purposes, and the replacement of the VAT with a non-refundable sales tax, although any outstanding VAT claims will be settled through the current refund mechanism. In the fourth quarter of 2018, the Zambian government finalized the changes to the current tax regime, which was effective January 1, 2019, with the exception of the changes to the non-refundable sales tax. In August 2019, the Zambian government alleviated this fiscal uncertainty by withdrawing the legislative Bill relating to the non-refundable sales tax and introduced a new Bill in September 2019 which contains measures to limit the claiming of VAT on certain items used by Lumwana. In addition to these external impacts, we have updated our LOM plan for Lumwana based on the significant reductions achieved in 2019 in unit mining costs and improvements in plant availability. This reduction in the cost base has allowed us to lower the cut-off grade which is expected to deliver a 5-year increase in the mine life of Lumwana. Finally, during the third quarter of 2019, we also updated our long-term copper price assumption to $3.00 per pound (previously $2.85 per pound). As a result of these indicators of impairment reversal, an assessment was undertaken and a partial non-current asset impairment reversal of $947 million was recognized in the third quarter of 2019, as we identified that Lumwana’s fair value less costs of disposal ("FVLCD") of $1.4 billion exceeded its carrying value. The key assumptions and estimates used in determining the FVLCD are long-term copper prices of $3.00 per pound and a weighted average cost of capital (“WACC”) of 10.4% . Nevada Gold Mines On July 1, 2019 we formed Nevada Gold Mines, a joint venture combining the respective mining operations, assets, reserves and talent from Barrick and Newmont in Nevada, USA. This includes Barrick's Cortez, Goldstrike, Turquoise Ridge and Goldrush properties and Newmont's Carlin, Twin Creeks, Phoenix, Long Canyon and Lone Tree properties. Through the purchase price allocation exercise, we identified various assets with fair values less than their carrying values. Although IFRS did not require us to remeasure the net assets of Goldstrike, Cortez and Goldrush to fair value, we identified indicators of impairment for certain land holdings and specific Cortez Hills Open Pit infrastructure assets and an impairment of $60 million was recorded in the third quarter of 2019. Refer to note 4 for further information. Second Quarter 2019 Acacia On May 21, 2019, Barrick met with the Directors and senior management of Acacia and presented a proposal to acquire all of the shares it did not already own in Acacia through a share for share exchange of 0.153 Barrick shares for each ordinary share of Acacia. The exchange ratio was based on the 20-day volume weighted average trading prices of Acacia and Barrick as at market close in London and New York on May 20, 2019 and implied a value for 100% of Acacia of $787 million . On July 19, 2019, we announced that the Boards of Barrick and Acacia reached an agreement on the terms of a recommended offer by Barrick for the 36.1% of Acacia that we did not own at that time. Under the terms of the agreement, the minority shareholders would exchange each Acacia share for 0.168 Barrick shares and would also be entitled to special dividends under certain conditions. The offer received shareholder approval in the third quarter of 2019 and the transaction closed on September 17, 2019. During the second quarter of 2019, Acacia updated its life of mine plans and subsequent to that, the Barrick technical team had an opportunity to conduct detailed due diligence on the updated life of mine plans for the Acacia assets and risk adjust the value of the assets. The value implied by Barrick's adjusted life of mine plans was deemed to be an indicator of impairment in the second quarter of 2019. An impairment assessment was undertaken in the second quarter and Barrick assessed the carrying value of the individual cash generating units within Acacia (Bulyanhulu, North Mara and Buzwagi) and determined that the carrying amounts were recoverable. Therefore, no impairment was recognized. The key assumptions and estimates used in determining the fair value less cost to dispose are short-term and long-term gold prices of $1,250 per ounce, NAV multiples of 1.0 - 1.1 and a WACC of 6.5% - 6.9% . Other assumptions include a 50% economic share of future economic benefits generated by the mines for the GoT, which includes taxes, royalties, tolls and 16% free carry interest in the mines. Management assumed the resumption of concentrate sales and exports commencing in Q3 2019 and the resumption of production from underground mining at Bulyanhulu in 2020. The WACC applied was lower than the 2018 and 2017 impairment tests for the Acacia CGUs, based on lower risk levels given the state of Barrick’s negotiations with the GoT at that time and the expectation that an agreement would be signed once the recommended offer to purchase the minority shareholdings of Acacia as described above had closed, and because the economic sharing of benefits had been modeled into the cash flows. 2018 Indicators of Impairment/Reversal Third and Fourth Quarter 2018 In the fourth quarter of 2018, as per our policy, we performed our annual goodwill impairment test and identified an impairment at our Veladero mine. Also in the fourth quarter, we reviewed the updated LOM plans for our other operating minesites for indicators of impairment or reversal. We noted an indicator of impairment at Acacia and at our Lagunas Norte and Lumwana mines and no indicators of impairment reversal. Veladero In the third quarter of 2018, the Argentine government re-established customs duties for all exports from Argentina. Effective for the period of September 2018 to December 31, 2020, exports of doré are subject to a 12% duty, capped at ARS 4.00 per USD exported. Based on our initial analysis performed in the third quarter of 2018, the re-establishment of the customs duties was not expected to have a significant adverse effect on the long-term fair value of the mine and the Company was engaged in ongoing discussions with the federal government to clarify the impact of the export duty on Veladero’s operations given the existing tax stability agreement As such, no indicator of impairment was identified in the third quarter of 2018. Upon the finalization of Veladero’s updated LOM plan in the fourth quarter of 2018, we observed a decrease in the mine’s cash flows reflecting a higher cost structure related to increasing government imposts (including new conditions associated with the heap leach permits that require the contribution of 1.5% of the mine’s revenues towards a trust commencing when Phase 6 of the leach pad begins production and the re-establishment of the export duties for all exports from Argentina effective September 2018), country risk and increasing energy costs. Upon performing our goodwill impairment test in the fourth quarter of 2018, we identified that the mine’s carrying value exceeded its FVLCD and we recorded a goodwill impairment of $154 million and a non-current asset impairment of $246 million, based upon a FVLCD of $674 million. Lagunas Norte In the third quarter of 2018, we updated a feasibility study for proposed projects relating to the processing of carbonaceous materials ("CMOP") and the treatment of refractory sulfide ore ("PMR") at Lagunas Norte in Peru. Based upon the findings of the feasibility study, it was determined not to proceed with the PMR project at that time. As a result, an impairment assessment was undertaken and a non-current asset impairment of $405 million was recognized in the third quarter of 2018, as we identified that Lagunas Norte's carrying value exceeded its FVLCD of $150 million . The key assumptions and estimates used in determining the FVLCD are short-term and long-term gold prices of $ 1,200 per ounce, NAV multiple of 1.1 - 1.2 and a weighted average cost of capital (“WACC”) of 3.8% . In the fourth quarter of 2018, we determined that the proposed project relating to CMOP at Lagunas Norte in Peru was not feasible in its current form and that more detailed studies and analysis are required before proceeding with the project. As such, a decision was made to not proceed with the CMOP project at this time and an inventory impairment of $166 million was recorded at December 31, 2018 to reduce the carrying value of the CMOP ounces in inventory to nil. The decision to not proceed with the CMOP project was considered an indicator of impairment at December 31, 2018 and an impairment assessment was performed using the fourth quarter 2018 gold price assumption of $1,250 per ounce. No further impairment was identified for the CGU as the carrying value of the mine subsequent to the inventory impairment was nil and no impairment reversal was identified as the mine’s FVLCD was negative. Lumwana On September 28, 2018, as part of their 2019 budget, the Zambian government introduced changes to the current mining tax regime. The changes included an increase in royalty rates by 1.5% , the introduction of a 10% royalty on copper production if the copper price increases above a certain price, the imposition of a 5% import duty on copper concentrates, the non-deductibility of mineral royalties paid or payable for income tax purposes, and the replacement of the VAT with a non-refundable sales tax, although any outstanding VAT claims will be settled through the current refund mechanism. The new mining tax regime had a proposed effective date of January 1, 2019; however, discussions were ongoing with the Zambian government in an effort to mitigate some of the impact prior to the proposed changes being enacted. However, based upon our initial analysis, it was our expectation that Lumwana would remain cash flow positive at current copper prices even if a positive outcome was not reached through the discussions with the government. Given the uncertainty over the final outcome of the tax changes and the need to assess the full impact to the life of mine plan once those tax changes were finalized, no indicator of impairment was identified in the third quarter of 2018. In the fourth quarter of 2018, the Zambian government finalized the changes to the current tax regime, which were expected to be effective January 1, 2019, with the exception of the changes to the non-refundable sales tax, which were expected to be finalized in the first quarter of 2019 and become effective April 1, 2019. The finalization of the changes to the mining tax regime was considered an indicator of impairment in the fourth quarter of 2018 and as such an impairment assessment was performed for Lumwana. Although the increase in the royalty rates negatively impacted the cash flows of the mine, this impact was largely offset by improvements in Lumwana’s cost structure arising primarily from the re-negotiation of contracts with suppliers under more favorable terms. As a result, no impairment was identified as the FVCLD exceeded the carrying value. We determined we would reassess the impact of the non-refundable sales tax on the mine’s cash flows once the outcome was finalized. Acacia In the fourth quarter of 2018, potential indicators of impairment were identified in relation to Acacia, specifically the ongoing uncertainty surrounding a potential resolution of the dispute between Acacia and the GoT, the revised Bulyanhulu business model, the updated geological models at North Mara and Bulyanhulu as well as the decline in Acacia’s market capitalization below its carrying value throughout 2018. As a result, an impairment assessment was undertaken in the fourth quarter, with no impairment loss identified. The assessment assumed the resumption of concentrate sales and of operations at Bulyanhulu will occur in the first quarter of 2020 and in late 2020, respectively, which is a further six month delay from the assumptions used in the impairment assessment carried out in the second quarter of 2018. The assessment also reflected the targeted outcome for a negotiated resolution in line with the proposed framework as reflected in the most recent LOM, and that VAT refunds will recommence and historic carried forward tax losses will continue to be available to offset against future taxable profits from January 1, 2020. Second Quarter 2018 Acacia In the second quarter of 2018, potential indicators of impairment were identified in relation to Acacia, specifically the ongoing uncertainty surrounding a potential resolution between Barrick and the GoT as well as the sustained decline in Acacia's market capitalization below its carrying value over the first half of 2018. As a result, an impairment assessment was undertaken in the second quarter, with no impairment loss identified. The assessment assumed that the resumption of concentrate sales and of operations at Bulyanhulu will occur in the second quarter of 2019 and in late 2019, respectively. The assessment also reflected the targeted outcome for a negotiated resolution in line with the proposed framework as reflected in the most recent LOM. The key assumptions and estimates used in determining the FVLCD are short– and long-term gold prices of $1,200 per ounce and a WACC of 11% , consistent with the rate used for the impairment assessment completed at December 31, 2017 in the calculation of FVLCD. FVLCD is most sensitive to changes in these key assumptions and to the timing of resolution of the export ban; therefore, a sensitivity analysis was performed based on a decrease in the long-term gold price of $100 per ounce and an increase in the WACC of 1% , and a further six-month delay in the resolution of the export ban. A $ 100 per ounce decrease in the long-term gold price would result in the recognition of a non-current asset impairment at Bulyanhulu of $98 million, net of tax. A 1% increase in the WACC and a further delay of six months in the resolution of the export ban would not result in the recognition of an impairment. However, should a negotiated resolution not eventuate, the recoverable value of Bulyanhulu may be further impacted, resulting in a review at such time. Subsequent to the second quarter close, OreCorp, which is Acacia's joint venture partner in the Nyanzaga project in Tanzania, executed its option under the earn-in agreement to increase its ownership in the project to 51% through a $3 million payment to Acacia. Furthermore, Acacia signed a conditional agreement to sell its remaining 49% interest in the project to OreCorp for $7 million and a net smelter royalty capped at $15 million based on future production. As a result of the agreement, and Acacia's commitment to a sale, Acacia expects to recover the value of the asset through sale and not value in use and as such has valued the asset at FVLCD of $10 million, resulting in the recognition of an impairment loss of $24 million in the second quarter of 2018. Kabanga In January 2018, new mining regulations relating to mineral rights were issued in Tanzania. These regulations canceled all retention licenses and declared that they no longer have legal effect and any previous holder, along with any third party, of a retention license would need to apply for a new prospecting or mining license for that area. Our 50% interest in the Kabanga project (a joint venture between Barrick and Glencore) was affected by these changes. While we have now submitted our application for a prospecting license, the operating environment for mining projects in Tanzania remains challenging and we have determined that our carrying amount for the project is not recoverable under the current circumstances. As such, we considered this an indicator of impairment, resulting in the recognition of a $30 million impairment in the second quarter of 2018, which is equal to the full carrying value of our equity method investment in the Kabanga JV. Key Assumptions The recoverable amount has been determined based on its estimated FVLCD, which has been determined to be greater than the VIU amounts. The key assumptions and estimates used in determining the FVLCD are related to commodity prices, discount rates, NAV multiples for gold assets, operating costs, exchange rates, capital expenditures, the LOM production profile, continued license to operate, evidence of value from current year disposals and for our projects the expected start of production. In addition, assumptions are related to observable market evaluation metrics, including identification of comparable entities, and associated market values per ounce and per pound of reserves and/or resources, as well as the valuation of resources beyond what is included in LOM plans. Gold For the gold segments where a recoverable amount was required to be determined, FVLCD was determined by calculating the net present value (“NPV”) of the future cash flows expected to be generated by the mines and projects within the segments (level 3 of the fair value hierarchy). The estimates of future cash flows were derived from the most recent LOM plans and, where the LOM plans exclude a material portion of total reserves and resources, we assign value to reserves and resources not considered in these models. Based on observable market or publicly available data, including forward prices and equity sell-side analyst forecasts, we make an assumption of future gold and silver prices to estimate future revenues. The future cash flows for each gold mine are discounted using a real WACC, which reflects specific market risk factors for each mine. Some gold companies trade at a market capitalization greater than the NPV of their expected cash flows. Market participants describe this as a “NAV multiple”, which represents the multiple applied to the NPV to arrive at the trading price. The NAV multiple is generally understood to take account of a variety of additional value factors such as the exploration potential of the mineral property, namely the ability to find and produce more metal than what is currently included in the LOM plan or reserve and resource estimates, and the benefit of gold price optionality. As a result, we applied a specific NAV multiple to the NPV of each CGU within each gold segment based on the NAV multiples observed in the market in recent periods and that we judged to be appropriate to the CGU. Pascua-Lama The FVLCD for Pascua-Lama was determined by considering observable market values for comparable assets expressed as dollar per ounce of measured and indicated resources (level 3 of the fair value hierarchy). In the absence of a LOM plan for Pascua-Lama, we used the market approach. The observable market values were adjusted, where appropriate, for country risk if the comparable asset was in a different country. Assumptions Our gold price assumption used in our fourth quarter 2019 impairment testing is $ 1,300 per ounce. Our gold price assumption used in our 2018 impairment testing was $ 1,250 per ounce. The increase in the gold price assumption from 2018 was not considered an indicator of impairment reversal as the increased price would not, in isolation, have resulted in the identification of an impairment reversal at our mines with reversible impairments. The other key assumptions used in our impairment testing, based on the CGUs tested in each year, are summarized in the table below: 2019 2018 Copper price per lb (long-term) $3.00 $2.85 WACC - gold (range) 3%-7% 4%-11% WACC - gold (avg) 4 % 7 % WACC - copper n/a 10 % NAV multiple - gold (avg) 1.2 1.05 LOM years - gold (avg) 19 15 Value per ounce of gold $20 - $30 n/a Value per ounce of silver $0.28 - $0.42 n/a Sensitivities Should there be a significant increase or decline in commodity prices, we would take actions to assess the implications on our life of mine plans, including the determination of reserves and resources, and the appropriate cost structure for the operating segments. The recoverable amount of the CGUs would be affected by these changes and also be impacted by other market factors such as changes in net asset value multiples and the value per ounce/pound of comparable market entities. We performed a sensitivity analysis on each CGU that was tested as part of the goodwill impairment test, as well as those CGUs which have had an impairment or impairment reversal in recent years. We flexed the gold and copper prices and the WACC, which are the most significant assumptions that impact the impairment calculations. We first assumed a +/- $100 per ounce change in our gold price assumptions or a +/- $0.25 per pound change in copper price assumptions, while holding all other assumptions constant. We then assumed a +/- 1% change in our WACC, independent from the change in gold or copper prices, while holding all other assumptions constant. These sensitivities help to determine the theoretical impairment losses or impairment reversals that would be recorded with these changes in gold or copper prices and WACC. If the gold price per ounce was decreased by $100 , a goodwill impairment of $529 million would be recognized for Loulo-Gounkoto and the fourth quarter 2019 impairment reversal at Pueblo Viejo would not be recognized. If the gold price was increased by $100 or the WACC was decreased by 1% , a full reversal of the $246 million non-current asset impairment at Veladero would be recognized. If the copper price per pound was decreased by $0.25 , the non-current asset impairment reversal recognized for Lumwana in the third quarter of 2019 would have been lower by $437 million , with a similar increase in the copper price per pound resulting in a increase in the impairment reversal by $437 million . In addition, for our Pascua-Lama project, we have determined our valuation based on a market approach. The key assumption that impacts the impairment calculations is the value per ounce of gold and per ounce of silver based on an analysis of comparable companies. We assumed a negative 10% change for the assumption of gold and silver value per ounce, while holding all other assumptions constant, and based on the results of the impairment testing performed in fourth quarter of 2019 for Pascua-Lama, the fair value of the CGU would have been reduced by approximately $40 million . We note that this sensitivity identifies the decrease in the value that, in isolation, would cause the carrying value of the CGU to exceed its recoverable amount. For Pascua-Lama, this value decrease is linear to the decrease in value per ounce. The carrying value of the CGUs that are most sensitive to changes in the key assumptions used in the FVLCD calculation are: As at December 31, 2019 Carrying Value Loulo-Gounkoto $4,198 Lumwana 1,307 Veladero 692 Bulyanhulu 579 Pascua-Lama 1 153 1 The carrying value of Pascua-Lama is presented net of the Wheaton streaming liability of $253 million (refer to note 29).

OTHER ASSETS

OTHER ASSETS	12 Months Ended
	Dec. 31, 2019
Subclassifications of assets, liabilities and equities [abstract]
OTHER ASSETS	OTHER ASSETS As at December 31, 2019 As at December 31, 2018 Goods and services taxes recoverable 1 $253 $271 Other investments 258 209 Notes receivable 2 202 285 Norte Abierto JV partner receivable 134 143 Restricted cash 3 162 121 Carlin prepaid royalty 115 — Prepayments 30 37 Derivative assets — 1 Other 153 168 $1,307 $1,235 1 Includes VAT and fuel tax receivables of $ 70 million in Argentina, $ 128 million in Tanzania and $ 53 million in Chile ( Dec. 31, 2018 : $ 110 million, $ 111 million and $ 50 million, respectively). 2 Primarily represents the interest bearing promissory note due from NovaGold and the non-interest bearing shareholder loan due from the Jabal Sayid JV as a result of the divestment of 50 percent interest in Jabal Sayid. 3 Primarily represents the cash balance at Pueblo Viejo that is contractually restricted in respect of disbursements for environmental rehabilitation that are expected to occur near the end of Pueblo Viejo’s mine life.

ACCOUNTS PAYABLE

ACCOUNTS PAYABLE	12 Months Ended
	Dec. 31, 2019
Subclassifications of assets, liabilities and equities [abstract]
ACCOUNTS PAYABLE	ACCOUNTS PAYABLE As at December 31, 2019 As at December 31, 2018 Accounts payable $715 $744 Accruals 440 357 $1,155 $1,101

OTHER CURRENT LIABILITIES

OTHER CURRENT LIABILITIES	12 Months Ended
	Dec. 31, 2019
Subclassifications of assets, liabilities and equities [abstract]
OTHER CURRENT LIABILITIES	OTHER CURRENT LIABILITIES As at December 31, 2019 As at December 31, 2018 Provision for environmental rehabilitation (note 27b) $156 $111 Deposit on Pascua-Lama silver sale agreement 1 253 — Deposit on Pueblo Viejo gold and silver streaming agreement 75 83 Share-based payments (note 34b) 48 30 Derivative liabilities — 3 Other 90 94 $622 $321 1 Reclassified from other non-current liabilities. Refer to note 29.

FINANCIAL INSTRUMENTS

FINANCIAL INSTRUMENTS	12 Months Ended
	Dec. 31, 2019
Financial Instruments [Abstract]
FINANCIAL INSTRUMENTS	FINANCIAL INSTRUMENTS Financial instruments include cash; evidence of ownership in an entity; or a contract that imposes an obligation on one party and conveys a right to a second entity to deliver/receive cash or another financial instrument. Information on certain types of financial instruments is included elsewhere in these consolidated financial statements as follows: accounts receivable (note 18); restricted share units (note 34b). a) Cash and Equivalents Cash and equivalents include cash, term deposits, treasury bills and money market investments with original maturities of less than 90 days. As at December 31, 2019 As at December 31, 2018 Cash deposits $2,571 $842 Term deposits 728 477 Money market investments 15 252 $3,314 $1,571 Of total cash and cash equivalents as of December 31, 2019 , $ nil ( 2018 : $ 383 million ) was held in subsidiaries which have regulatory regulations, contractual restrictions or operate in countries where exchange controls and other legal restrictions apply and are therefore not available for general use by the Company. b) Debt and Interest 1 Closing balance December 31, 2018 Proceeds Repayments Amortization and other 2 Closing balance December 31, 2019 5.7% notes 3,9 $842 $— $— $— $842 3.85%/5.25% notes 1,079 — — — 1,079 5.80% notes 4,9 395 — — — 395 6.35% notes 5,9 594 — — — 594 Other fixed rate notes 6,9 1,326 — (248 ) 2 1,080 Leases 7 19 — (28 ) 105 96 Other debt obligations 598 — (4 ) — 594 5.75% notes 8,9 842 — — — 842 Acacia credit facility 10 43 — (29 ) — 14 $5,738 $— ($309 ) $107 $5,536 Less: current portion 11 (43 ) — — — (375 ) $5,695 $— ($309 ) $107 $5,161 Closing balance December 31, 2017 Proceeds Repayments Amortization and other 2 Closing balance December 31, 2018 4.4%/5.7% notes 3,9 $1,468 $— ($629 ) $3 $842 3.85%/5.25% notes 1,079 — — — 1,079 5.80% notes 4,9 395 — — — 395 6.35% notes 5,9 593 — — 1 594 Other fixed rate notes 6,9 1,326 — — — 1,326 Leases 7 46 — (27 ) — 19 Other debt obligations 603 — (3 ) (2 ) 598 5.75% notes 8,9 842 — — — 842 Acacia credit facility 10 71 — (28 ) — 43 $6,423 $— ($687 ) $2 $5,738 Less: current portion 11 (59 ) — — — (43 ) $6,364 $— ($687 ) $2 $5,695 1 The agreements that govern our long-term debt each contain various provisions which are not summarized herein. These provisions allow Barrick, at its option, to redeem indebtedness prior to maturity at specified prices and also may permit redemption of debt by Barrick upon the occurrence of certain specified changes in tax legislation. 2 Amortization of debt premium/discount and increases (decreases) in capital leases. 3 Consists of $ 850 million ( 2018 : $ 850 million) of our wholly-owned subsidiary Barrick North America Finance LLC (“BNAF”) notes due 2041. 4 Consists of $ 400 million ( 2018 : $ 400 million) of 5.80 % notes which mature in 2034. 5 Consists of $ 600 million ( 2018 : $ 600 million) of 6.35 % notes which mature in 2036. 6 Consists of $ 1.1 billion ( 2018 : $ 1.3 billion) in conjunction with our wholly-owned subsidiary BNAF and our wholly-owned subsidiary Barrick (PD) Australia Finance Pty Ltd. (“BPDAF”). This consists of $ nil ( 2018 : $ 248 million) of BPDAF notes due 2020, $ 250 million ( 2018 : $ 250 million) of BNAF notes due 2038 and $ 850 million ( 2018 : $ 850 million) of BPDAF notes due 2039. 7 Consists primarily of leases at Nevada Gold Mines, $32 million , Loulo-Gounkoto, $ 32 million , Lumwana, $10 million , Pascua-Lama, $ 6 million and Porgera, $ 5 million ( 2018 : $ nil , $ nil , $3 million , $ 9 million and $ nil , respectively). 8 Consists of $850 million ( 2018 : $850 million ) in conjunction with our wholly-owned subsidiary BNAF. 9 We provide an unconditional and irrevocable guarantee on all BNAF, BPDAF, Barrick Gold Finance Company (“BGFC”), and Barrick (HMC) Mining (“BHMC”) notes and generally provide such guarantees on all BNAF, BPDAF, BGFC, and BHMC notes issued, which will rank equally with our other unsecured and unsubordinated obligations. 10 Consists of an export credit backed term loan facility. 11 The current portion of long-term debt consists of our 3.85 % notes ($ 336 million; 2018 : $ nil ), leases ($ 25 million; 2018 : $ 11 million) and Acacia credit facility ($ 14 million; 2018 : $ 28 million), and other debt obligations ($ nil ; 2018 : $ 4 million). 4.4% / 5.7% Notes In June 2011, BNAF issued an aggregate of $ 4.0 billion in debt securities consisting of $1.35 billion of 4.40% notes that mature in 2021 and $850 million of 5.70% notes that mature in 2041 issued by BNAF (collectively, the “BNAF Notes”). Barrick provides an unconditional and irrevocable guarantee of the BNAF Notes, which will rank equally with Barrick’s other unsecured and unsubordinated obligations. During 2016 , $ 721 million of the $ 1.35 billion of the 4.4% notes was repaid. During 2018, the remaining $629 million of the 4.4% notes was repaid. 3.85% and 5.25% Notes On April 3, 2012, we issued an aggregate of $2 billion in debt securities comprised of $1.25 billion of 3.85% notes that mature in 2022 and $750 million of 5.25% notes that mature in 2042. During 2015, $913 million of the 3.85% notes was repaid. On January 31, 2020, the remaining $337 million of the 3.85% notes was repaid. Other Fixed Rate Notes On October 16, 2009, we issued two tranches of debentures totaling $1.25 billion through our wholly-owned indirect subsidiary Barrick (PD) Australia Finance Pty Ltd. (“BPDAF”) consisting of $850 million of 30 -year notes with a coupon rate of 5.95% and $400 million of 10 -year notes with a coupon rate of 4.95% . We also provide an unconditional and irrevocable guarantee of these payments, which rank equally with our other unsecured and unsubordinated obligations. During 2016, $152 million of the $400 million of the 4.95% notes was repaid. During 2019, the remaining $248 million of the 4.95% notes was repaid. In September 2008, we issued an aggregate of $1.25 billion of notes through our wholly-owned indirect subsidiaries Barrick North America Finance LLC and Barrick Gold Financeco LLC (collectively, the “LLCs”) consisting of $250 million of 30 -year notes with a coupon rate of 7.5% . We also provide an unconditional and irrevocable guarantee of these payments, which rank equally with our other unsecured and unsubordinated obligations. 5.75% Notes On May 2, 2013, we issued an aggregate of $3 billion in notes through Barrick and our wholly-owned indirect subsidiary BNAF consisting of $850 million of 5.75% notes issued by BNAF that mature in 2043. $2 billion of the net proceeds from this offering was used to repay amounts outstanding under our revolving credit facility at that time. We provided an unconditional and irrevocable guarantee on the $850 million of 5.75% notes issued by BNAF, which will rank equally with our other unsecured and unsubordinated obligations. Amendment and Refinancing of the Credit Facility In November 2019, we amended and restated the credit and guarantee agreement (the “Credit Facility”) with certain Lenders, which requires such Lenders to make available to us a credit facility of $3.0 billion or the equivalent amount in Canadian dollars. The Credit Facility, which is unsecured, currently has an interest rate of London Interbank Offered Rate (“LIBOR”) plus 1.25% on drawn amounts, and a commitment rate of 0.15% on undrawn amounts and includes terms to replace LIBOR with a suitable replacement as that issue develops. As part of the amendment and restatement, the termination date of the Credit Facility was extended from January 2024 to January 2025. The Credit Facility is undrawn as at December 31, 2019 . Acacia Credit Facility In January 2013, Acacia concluded negotiations with a group of commercial banks for the provision of an export credit backed term loan facility (the “Facility”) for the amount of $142 million . The Facility was put in place to fund a substantial portion of the construction costs of the CIL circuit at the process plant at the Bulyanhulu Project. The Facility has a term of seven years and, when drawn, the spread over LIBOR will be 250 basis points. The Facility is repayable in equal installments over the term of the Facility, after a two -year repayment holiday period. At December 31, 2014 , the full value of the Facility was drawn. During 2015 , $14 million was repaid. During 2016 , $29 million was repaid. During 2017 , $28 million was repaid. During 2018, $28 million was repaid. During 2019, $29 million was repaid. In January 2020, the final installment of $14 million was paid. Interest 2019 2018 For the years ended December 31 Interest cost Effective rate 1 Interest cost Effective rate 1 4.4%/5.7% notes $49 5.74 % $63 5.25 % 3.85%/5.25% notes 53 4.87 % 53 4.87 % 5.80% notes 23 5.87 % 23 5.85 % 6.35% notes 38 6.41 % 39 6.41 % Other fixed rate notes 77 6.33 % 83 6.16 % Leases 6 7.14 % 2 6.18 % Other debt obligations 34 6.17 % 38 6.55 % 5.75% notes 49 5.79 % 49 5.79 % Acacia credit facility 3 3.36 % 5 3.59 % Deposits on Pascua-Lama silver sale agreement (note 29) 70 8.75 % 65 8.25 % Deposits on Pueblo Viejo gold and silver streaming agreement (note 29) 34 6.79 % 33 6.41 % $436 $453 Less: interest capitalized (14 ) (9 ) $422 $444 1 The effective rate includes the stated interest rate under the debt agreement, amortization of debt issue costs and debt discount/premium and the impact of interest rate contracts designated in a hedging relationship with debt. Scheduled Debt Repayments 1 Issuer Maturity Year 2020 2021 2022 2023 2024 2025 and thereafter Total 7.31% notes 2 BGC 2021 $— $7 $— $— $— $— $7 3.85% notes BGC 2022 — — 337 — — — 337 7.73% notes 2 BGC 2025 — — — — — 7 7 7.70% notes 2 BGC 2025 — — — — — 5 5 7.37% notes 2 BGC 2026 — — — — — 32 32 8.05% notes 2 BGC 2026 — — — — — 15 15 6.38% notes 2 BGC 2033 — — — — — 200 200 5.80% notes BGC 2034 — — — — — 200 200 5.80% notes BGFC 2034 — — — — — 200 200 6.45% notes 2 BGC 2035 — — — — — 300 300 6.35% notes BHMC 2036 — — — — — 600 600 7.50% notes 3 BNAF 2038 — — — — — 250 250 5.95% notes 3 BPDAF 2039 — — — — — 850 850 5.70% notes BNAF 2041 — — — — — 850 850 5.25% notes BGC 2042 — — — — — 750 750 5.75% notes BNAF 2043 — — — — — 850 850 Other debt obligations 2 — — — — — — — Acacia credit facility 14 — — — — — 14 $14 $7 $337 $— $— $5,109 $5,467 Minimum annual payments under leases $25 $15 $12 $8 $5 $32 $97 1 This table illustrates the contractual undiscounted cash flows, and may not agree with the amounts disclosed in the consolidated balance sheet. 2 Included in Other debt obligations in the Long-Term Debt table. 3 Included in Other fixed rate notes in the Long-Term Debt table. c) Derivative Instruments (“Derivatives”) In the normal course of business, our assets, liabilities and forecasted transactions, as reported in US dollars, are impacted by various market risks including, but not limited to: Item Impacted by ● Revenue ● Prices of gold, silver and copper ● Cost of sales o Consumption of diesel fuel, propane, natural gas, and electricity o Prices of diesel fuel, propane, natural gas, and electricity o Non-US dollar expenditures o Currency exchange rates - US dollar versus A$, ARS, C$, CLP, DOP, EUR, PGK, TZS, ZAR, XOF, and ZMW ● General and administration, exploration and evaluation costs ● Currency exchange rates - US dollar versus A$, ARS, C$, CLP, DOP, GBP, PGK, TZS, XOF, ZAR, and ZMW ● Capital expenditures o Non-US dollar capital expenditures o Currency exchange rates - US dollar versus A$, ARS, C$, CLP, DOP, EUR, GBP, PGK, XOF, and ZAR o Consumption of steel o Price of steel ● Interest earned on cash and equivalents ● US dollar interest rates ● Interest paid on fixed-rate borrowings ● US dollar interest rates The time frame and manner in which we manage those risks varies for each item based upon our assessment of the risk and available alternatives for mitigating risk. For these particular risks, we believe that derivatives are an appropriate way of managing the risk. We use derivatives as part of our risk management program to mitigate variability associated with changing market values related to the hedged item. Many of the derivatives we use meet the hedge effectiveness criteria and are designated in a hedge accounting relationship. Certain derivatives are designated as either hedges of the fair value of recognized assets or liabilities or of firm commitments (“fair value hedges”) or hedges of highly probable forecasted transactions (“cash flow hedges”), collectively known as “accounting hedges”. Hedges that are expected to be highly effective in achieving offsetting changes in fair value or cash flows are assessed on an ongoing basis to determine that they actually have been highly effective throughout the financial reporting periods for which they were designated. Some of the derivatives we use are effective in achieving our risk management objectives, but they do not meet the strict hedge accounting criteria. These derivatives are considered to be “non-hedge derivatives”. During 2019 , we did not enter into any US dollar interest rate contracts, currency contracts, commodity contracts, or metals contracts. We had no contracts outstanding at December 31, 2019 .

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	12 Months Ended
	Dec. 31, 2019
Fair Value Measurements [Abstract]
FAIR VALUE MEASUREMENTS	FAIR VALUE MEASUREMENTS Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The fair value hierarchy establishes three levels to classify the inputs to valuation techniques used to measure fair value. Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 inputs are quoted prices in markets that are not active, quoted prices for similar assets or liabilities in active markets, inputs other than quoted prices that are observable for the asset or liability (for example, interest rate and yield curves observable at commonly quoted intervals, forward pricing curves used to value currency and commodity contracts and volatility measurements used to value option contracts), or inputs that are derived principally from or corroborated by observable market data or other means. Level 3 inputs are unobservable (supported by little or no market activity). The fair value hierarchy gives the highest priority to Level 1 inputs and the lowest priority to Level 3 inputs. a) Assets and Liabilities Measured at Fair Value on a Recurring Basis Fair Value Measurements At December 31, 2019 Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Aggregate Fair Value (Level 1) (Level 2) (Level 3) Cash and equivalents $3,314 $— $— $3,314 Other investments 258 — — 258 Derivatives — 1 — 1 Receivables from provisional copper and gold sales — 68 — 68 $3,572 $69 $— $3,641 Fair Value Measurements At December 31, 2018 Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Aggregate Fair Value (Level 1) (Level 2) (Level 3) Cash and equivalents $1,571 $— $— $1,571 Other investments 209 — — 209 Derivatives — — — — Receivables from provisional copper and gold sales — 76 — 76 $1,780 $76 $— $1,856 b) Fair Values of Financial Assets and Liabilities At December 31, 2019 At December 31, 2018 Carrying amount Estimated fair value Carrying amount Estimated fair value Financial assets Other assets 1 $612 $612 $559 $559 Other investments 2 258 258 209 209 Derivative assets 1 1 3 3 $871 $871 $771 $771 Financial liabilities Debt 3 $5,536 $6,854 $5,738 $6,183 Derivative liabilities — — 3 3 Other liabilities 209 209 297 297 $5,745 $7,063 $6,038 $6,483 1 Includes restricted cash and amounts due from our partners. 2 Recorded at fair value. Quoted market prices are used to determine fair value. 3 Debt is generally recorded at amortized cost except for obligations that are designated in a fair-value hedge relationship, in which case the carrying amount is adjusted for changes in fair value of the hedging instrument in periods when a hedge relationship exists. The fair value of debt is primarily determined using quoted market prices. Balance includes both current and long-term portions of debt. We do not offset financial assets with financial liabilities. c) Assets Measured at Fair Value on a Non-Recurring Basis Quoted prices in active markets for identical assets Significant other observable inputs Significant unobservable inputs Aggregate fair value (Level 1) (Level 2) (Level 3) Property, plant and equipment 1 — — 130 130 1 Property, plant and equipment were written down by $ 389 million, which was included in earnings in this period. Valuation Techniques Cash Equivalents The fair value of our cash equivalents is classified within Level 1 of the fair value hierarchy because they are valued using quoted market prices in active markets. Our cash equivalents are comprised of U.S. Treasury bills and money market securities that are invested primarily in U.S. Treasury bills. Other Investments The fair value of other investments is determined based on the closing price of each security at the balance sheet date. The closing price is a quoted market price obtained from the exchange that is the principal active market for the particular security, and therefore other investments are classified within Level 1 of the fair value hierarchy. Derivative Instruments The fair value of derivative instruments is determined using either present value techniques or option pricing models that utilize a variety of inputs that are a combination of quoted prices and market-corroborated inputs. The fair value of all our derivative contracts includes an adjustment for credit risk. For counterparties in a net asset position, credit risk is based upon the observed credit default swap spread for each particular counterparty, as appropriate. For counterparties in a net liability position, credit risk is based upon Barrick’s observed credit default swap (“CDS”) spread. The fair value of US dollar interest rate and currency swap contracts is determined by discounting contracted cash flows using a discount rate derived from observed LIBOR and swap rate curves and credit default swap rates. In the case of currency contracts, we convert non-US dollar cash flows into US dollars using an exchange rate derived from currency swap curves and CDS rates. The fair value of commodity forward contracts is determined by discounting contractual cash flows using a discount rate derived from observed LIBOR and swap rate curves and CDS rates. Contractual cash flows are calculated using a forward pricing curve derived from observed forward prices for each commodity. Derivative instruments are classified within Level 2 of the fair value hierarchy. Receivables from Provisional Copper and Gold Sales The fair value of receivables arising from copper and gold sales contracts that contain provisional pricing mechanisms is determined using the appropriate quoted forward price from the exchange that is the principal active market for the particular metal. As such, these receivables, which meet the definition of an embedded derivative, are classified within Level 2 of the fair value hierarchy. Other Long-Term Assets The fair value of property, plant and equipment, goodwill, intangibles and other assets is determined primarily using an income approach based on unobservable cash flows and a market multiples approach where applicable, and as a result is classified within Level 3 of the fair value hierarchy. Refer to note 21 for disclosure of inputs used to develop these measures.

PROVISIONS

PROVISIONS	12 Months Ended
	Dec. 31, 2019
Other provisions [abstract]
PROVISIONS	PROVISIONS a) Provisions As at December 31, 2019 As at December 31, 2018 Environmental rehabilitation (“PER”) $2,922 $2,726 Post-retirement benefits 43 42 Share-based payments 26 26 Other employee benefits 19 22 Other 104 88 $3,114 $2,904 b) Environmental Rehabilitation 2019 2018 At January 1 $2,837 $3,096 PERs acquired (divested) during the year 425 — Closed Sites Impact of revisions to expected cash flows recorded in earnings (75 ) (30 ) Settlements Cash payments (72 ) (48 ) Settlement gains (3 ) (2 ) Accretion 18 13 Operating Sites PER revisions in the year (87 ) (247 ) Settlements Cash payments (21 ) (18 ) Settlement gains (1 ) (1 ) Accretion 57 74 At December 31 $3,078 $2,837 Current portion (note 24) (156 ) (111 ) $2,922 $2,726 The eventual settlement of substantially all PERs estimated is expected to take place between 2020 and 2059 . The total PER has decreased in the fourth quarter of 2019 by $511 million primarily due to changes in cost estimates at our Pascua-Lama, Carlin, Golden Sunlight and Cortez properties, combined with the divestment of Kalgoorlie. For the year ended December 31, 2019 , our PER balance increased by $241 million primarily due to the contribution of Newmont’s assets to Nevada Gold Mines on July 1, 2019, the acquisition of Randgold on January 1, 2019, and a decrease in the discount rate. These were partially offset by changes in cost estimates primarily at our Pascua-Lama, Pierina, Golden Sunlight, Lagunas Note and Pueblo Viejo properties, combined with the divestment of Kalgoorlie. A 1% increase in the discount rate would result in a decrease in PER by $357 million and a 1% decrease in the discount rate would result in an increase in PER by $207 million , while holding the other assumptions constant.

FINANCIAL RISK MANAGEMENT

FINANCIAL RISK MANAGEMENT	12 Months Ended
	Dec. 31, 2019
Financial Instruments [Abstract]
FINANCIAL RISK MANAGEMENT	FINANCIAL RISK MANAGEMENT Our financial instruments are comprised of financial liabilities and financial assets. Our principal financial liabilities, other than derivatives, comprise accounts payable and debt. The main purpose of these financial instruments is to manage short-term cash flow and raise funds for our capital expenditure program. Our principal financial assets, other than derivative instruments, are cash and equivalents and accounts receivable, which arise directly from our operations. In the normal course of business, we use derivative instruments to mitigate exposure to various financial risks. We manage our exposure to key financial risks in accordance with our financial risk management policy. The objective of the policy is to support the delivery of our financial targets while protecting future financial security. The main risks that could adversely affect our financial assets, liabilities or future cash flows are as follows: a. Market risk, including commodity price risk, foreign currency and interest rate risk; b. Credit risk; c. Liquidity risk; and d. Capital risk management. Management designs strategies for managing each of these risks, which are summarized below. Our senior management oversees the management of financial risks. Our senior management ensures that our financial risk-taking activities are governed by policies and procedures and that financial risks are identified, measured and managed in accordance with our policies and our risk appetite. All derivative activities for risk management purposes are carried out by the appropriate personnel. a) Market Risk Market risk is the risk that changes in market factors, such as commodity prices, foreign exchange rates or interest rates, will affect the value of our financial instruments. We manage market risk by either accepting it or mitigating it through the use of derivatives and other economic hedging strategies. Commodity Price Risk Gold and Copper We sell our gold and copper production in the world market. The market prices of gold and copper are the primary drivers of our profitability and ability to generate both operating and free cash flow. Our corporate treasury group implements hedging strategies on an opportunistic basis to protect us from downside price risk on our gold and copper production. We did not enter into any positions during the year and do not have any positions outstanding at December 31, 2019 . Our gold and copper production is subject to market prices. Fuel On average we consume 4 million barrels of diesel fuel annually across all our mines. Diesel fuel is refined from crude oil and is therefore subject to the same price volatility affecting crude oil prices. Therefore, volatility in crude oil prices has a significant direct and indirect impact on our production costs. To mitigate this volatility, we employ a strategy of using financial contracts to hedge our exposure to oil prices. Foreign Currency Risk The functional and reporting currency for all of our operating segments is the US dollar and we report our results using the US dollar. The majority of our operating and capital expenditures are denominated and settled in US dollars. We have exposure to the Australian dollar and Canadian dollar through a combination of mine operating costs and general and administrative costs; and to the Papua New Guinea kina, Peruvian sol, Chilean peso, Argentine peso, Dominican Republic peso, West African CFA franc, and Zambian kwacha through mine operating costs. Consequently, fluctuations in the US dollar exchange rate against these currencies increase the volatility of cost of sales, general and administrative costs and overall net earnings, when translated into US dollars. Interest Rate Risk Interest rate risk refers to the risk that the value of a financial instrument or cash flows associated with the instruments will fluctuate due to changes in market interest rates. Currently, our interest rate exposure mainly relates to interest receipts on our cash balances ($ 3.3 billion at the end of the year); the mark-to-market value of derivative instruments; and to the interest payments on our variable-rate debt ( $0.1 billion at December 31, 2019 ). The effect on net earnings and equity of a 1% change in the interest rate of our financial assets and liabilities as at December 31, 2019 is approximately $ 18 million ( 2018 : $16 million). b) Credit Risk Credit risk is the risk that a third party might fail to fulfill its performance obligations under the terms of a financial instrument. Credit risk arises from cash and equivalents, trade and other receivables as well as derivative assets. For cash and equivalents and trade and other receivables, credit risk exposure equals the carrying amount on the balance sheet, net of any overdraft positions. To mitigate our inherent exposure to credit risk we maintain policies to limit the concentration of credit risk, review counterparty creditworthiness on a monthly basis, and ensure liquidity of available funds. We also invest our cash and equivalents in highly rated financial institutions, primarily within the United States and other investment grade countries, which are countries rated BBB- or higher by S&P and include Canada, Chile, Australia and Peru. Furthermore, we sell our gold and copper production into the world market and to private customers with strong credit ratings. Historically, customer defaults have not had a significant impact on our operating results or financial position. For derivatives with a positive fair value, we are exposed to credit risk equal to the carrying value. When the fair value of a derivative is negative, we assume no credit risk. We mitigate credit risk on derivatives by: • Entering into derivatives with high credit-quality counterparties; • Limiting the amount of net exposure with each counterparty; and • Monitoring the financial condition of counterparties on a regular basis. The Company’s maximum exposure to credit risk at the reporting date is the carrying value of each of the financial assets disclosed as follows: As at December 31, 2019 As at December 31, 2018 Cash and equivalents $3,314 $1,571 Accounts receivable 363 248 Net derivative assets by counterparty — 2 $3,677 $1,821 c) Liquidity Risk Liquidity risk is the risk of loss from not having access to sufficient funds to meet both expected and unexpected cash demands. We manage our exposure to liquidity risk by maintaining cash reserves, access to undrawn credit facilities and access to public debt markets, by staggering the maturities of outstanding debt instruments to mitigate refinancing risk and by monitoring of forecasted and actual cash flows. Details of the undrawn credit facility are included in note 25. Our capital structure comprises a mix of debt and shareholders’ equity. As at December 31, 2019 , our total debt was $5.5 billion (debt net of cash and equivalents was $2.2 billion ) compared to total debt as at December 31, 2018 of $5.7 billion (debt net of cash and equivalents was $4.2 billion ). Our operating cash flow is dependent on the ability of our operations to deliver projected future cash flows. The market prices of gold, and to a lesser extent copper, are the primary drivers of our operating cash flow. Other options to enhance liquidity include further portfolio optimization and the creation of new joint ventures and partnerships; issuance of equity securities in the public markets or to private investors, which could be undertaken for liquidity enhancement and/or in connection with establishing a strategic partnership; issuance of long-term debt securities in the public markets or to private investors (Moody’s and S&P currently rate Barrick’s outstanding long-term debt as investment grade, with ratings of Baa2 and BBB, respectively); and drawing on the $3.0 billion available under our undrawn credit facility (subject to compliance with covenants and the making of certain representations and warranties, this facility is available for drawdown as a source of financing). The key financial covenant in the Credit Facility (undrawn as at December 31, 2019 ) requires Barrick to maintain a net debt to total capitalization ratio, as defined in the agreement, of 0.60 :1 or lower (Barrick’s net debt to total capitalization ratio was 0.07 :1 as at December 31, 2019 ). The following table outlines the expected maturity of our significant financial assets and liabilities into relevant maturity groupings based on the remaining period from the balance sheet date to the contractual maturity date. As the amounts presented in the table are the contractual undiscounted cash flows, these balances may not agree with the amounts disclosed in the balance sheet. As at December 31, 2019 (in $ millions) Less than 1 year 1 to 3 years 3 to 5 years Over 5 years Total Cash and equivalents $3,314 $— $— $— $3,314 Accounts receivable 363 — — — 363 Derivative assets — — — — — Trade and other payables 1,155 — — — 1,155 Debt 39 371 13 5,141 5,564 Derivative liabilities — — — — — Other liabilities 55 52 9 93 209 As at December 31, 2018 (in $ millions) Less than 1 year 1 to 3 years 3 to 5 years Over 5 years Total Cash and equivalents $1,571 $— $— $— $1,571 Accounts receivable 248 — — — 248 Derivative assets 2 1 — — 3 Trade and other payables 1,101 — — — 1,101 Debt 43 275 339 5,110 5,767 Derivative liabilities 3 — — — 3 Other liabilities 59 80 21 137 297 d) Capital Risk Management Our objective when managing capital is to provide value for shareholders by maintaining an optimal short-term and long-term capital structure in order to reduce the overall cost of capital while preserving our ability to continue as a going concern. Our capital management objectives are to safeguard our ability to support our operating requirements on an ongoing basis, continue the development and exploration of our mineral properties and support any expansion plans. Our objectives are also to ensure that we maintain a strong balance sheet and optimize the use of debt and equity to support our business and provide financial flexibility in order to maximize shareholder value. We define capital as total debt less cash and equivalents and it is managed by management subject to approved policies and limits by the Board of Directors. We have no significant financial covenants or capital requirements with our lenders or other parties other than what is discussed under liquidity risk in note 28c.

OTHER NON-CURRENT LIABILITIES

OTHER NON-CURRENT LIABILITIES	12 Months Ended
	Dec. 31, 2019
Subclassifications of assets, liabilities and equities [abstract]
OTHER NON-CURRENT LIABILITIES	OTHER NON-CURRENT LIABILITIES As at December 31, 2019 As at December 31, 2018 Deposit on Pascua-Lama silver sale agreement 1,2 $— $811 Deposit on Pueblo Viejo gold and silver streaming agreement 1 425 426 Long-term income tax payable 241 270 Derivative liabilities — — Provision for offsite remediation 52 57 Other 105 179 $823 $1,743 1 Revenues of $43 million were recognized in 2019 ( 2018 : $76 million ) through the draw-down of our streaming liabilities relating to contracts in place at Pueblo Viejo in 2019 and Pueblo Viejo and Pascua-Lama in 2018. 2 Reclassified to other current liabilities. Refer to note 24. Silver Sale Agreement Our silver sale agreement with Wheaton requires us to deliver 25 percent of the life of mine silver production from the Pascua-Lama project and required delivery of 100 percent of silver production from the Lagunas Norte, Pierina and Veladero mines until March 31, 2018. In return, we were entitled to an upfront cash payment of $625 million payable over three years from the date of the agreement, as well as ongoing payments in cash of the lesser of $3.90 (subject to an annual inflation adjustment of 1 percent starting three years after project completion at Pascua-Lama) and the prevailing market price for each ounce of silver delivered under the agreement. An imputed interest expense was being recorded on the liability at the rate implicit in the agreement. The liability plus imputed interest was amortized based on the difference between the effective contract price for silver and the amount of the ongoing cash payment per ounce of silver delivered under the agreement. 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. Gold and Silver Streaming Agreement On September 29, 2015, we closed a gold and silver streaming transaction with Royal Gold, Inc. (“Royal Gold”) for production linked to Barrick’s 60 percent interest in the Pueblo Viejo mine. Royal Gold made an upfront cash payment of $610 million and will continue to make cash payments for gold and silver delivered under the agreement. The $610 million upfront payment is not repayable and Barrick is obligated to deliver gold and silver based on Pueblo Viejo’s production. We have accounted for the upfront payment as deferred revenue and will recognize it in earnings, along with the ongoing cash payments, as the gold and silver is delivered to Royal Gold. We will also be recording accretion expense on the deferred revenue balance as the time value of the upfront deposit represents a significant component of the transaction. Under the terms of the agreement, Barrick will sell gold and silver to Royal Gold equivalent to: • 7.5 percent of Barrick’s interest in the gold produced at Pueblo Viejo until 990,000 ounces of gold have been delivered, and 3.75 percent thereafter. • 75 percent of Barrick’s interest in the silver produced at Pueblo Viejo until 50 million ounces have been delivered, and 37.5 percent thereafter. Silver will be delivered based on a fixed recovery rate of 70 percent . Silver above this recovery rate is not subject to the stream. Barrick will receive ongoing cash payments from Royal Gold equivalent to 30 percent of the prevailing spot prices for the first 550,000 ounces of gold and 23.1 million ounces of silver delivered. Thereafter payments will double to 60 percent of prevailing spot prices for each subsequent ounce of gold and silver delivered. Ongoing cash payments to Barrick are tied to prevailing spot prices rather than fixed in advance, maintaining exposure to higher gold and silver prices in the future.

DEFERRED INCOME TAXES

DEFERRED INCOME TAXES	12 Months Ended
	Dec. 31, 2019
Income Tax [Abstract]
DEFERRED INCOME TAXES	DEFERRED INCOME TAXES Recognition and Measurement We record deferred income tax assets and liabilities where temporary differences exist between the carrying amounts of assets and liabilities in our balance sheet and their tax bases. The measurement and recognition of deferred income tax assets and liabilities takes into account: substantively enacted rates that will apply when temporary differences reverse; interpretations of relevant tax legislation; estimates of the tax bases of assets and liabilities; and the deductibility of expenditures for income tax purposes. In addition, the measurement and recognition of deferred tax assets takes into account tax planning strategies. We recognize the effect of changes in our assessment of these estimates and factors when they occur. Changes in deferred income tax assets and liabilities are allocated between net income, other comprehensive income, equity and goodwill based on the source of the change. Current income taxes of $33 million have been provided on the undistributed earnings of certain foreign subsidiaries. Deferred income taxes have not been provided on the undistributed earnings of all other foreign subsidiaries for which we are able to control the timing of the remittance, and it is probable that there will be no remittance in the foreseeable future. These undistributed earnings amounted to $ 16,470 million as at December 31, 2019 . Sources of Deferred Income Tax Assets and Liabilities As at December 31, 2019 As at December 31, 2018 Deferred tax assets Tax loss carry forwards $511 $537 Alternative minimum tax (“AMT”) and other tax credits 28 37 Environmental rehabilitation 329 292 Post-retirement benefit obligations and other employee benefits 24 27 Accrued interest payable — 1 Other working capital 75 32 Other 11 12 $978 $938 Deferred tax liabilities Property, plant and equipment (3,263 ) (1,412 ) Inventory (545 ) (503 ) Accrued interest payable (26 ) — ($2,856 ) ($977 ) Classification: Non-current assets $235 $259 Non-current liabilities (3,091 ) (1,236 ) ($2,856 ) ($977 ) The deferred tax asset of $235 million includes $218 million expected to be realized in more than one year. The deferred tax liability of $3,091 million is expected to be realized in more than one year. Expiry Dates of Tax Losses 2020 2021 2022 2023 2024+ No expiry date Total Non-capital tax losses 1 Argentina $— $50 $— $— $— $— $50 Barbados — — — 440 1,252 — 1,692 Canada — — — — 2,371 — 2,371 Chile — — — — — 992 992 Tanzania — — — — — 1,566 1,566 Zambia 12 259 — — — — 271 Other — — — — — 694 694 $12 $309 $— $440 $3,623 $3,252 $7,636 1 Represents the gross amount of tax loss carry forwards translated at closing exchange rates at December 31, 2019 . The non-capital tax losses include $6,037 million of losses which are not recognized in deferred tax assets. Of these, $128 million expire in 2021 , $440 million expire in 2023 , $3,623 million expire in 2024 or later, and $1,846 million have no expiry date. Recognition of Deferred Tax Assets We recognize deferred tax assets taking into account the effects of local tax law. Deferred tax assets are fully recognized when we conclude that sufficient positive evidence exists to demonstrate that it is probable that a deferred tax asset will be realized. The main factors considered are: • Historic and expected future levels of taxable income; • Tax plans that affect whether tax assets can be realized; and • The nature, amount and expected timing of reversal of taxable temporary differences. Levels of future income are mainly affected by: market gold, copper and silver prices; forecasted future costs and expenses to produce gold and copper reserves; quantities of proven and probable gold and copper reserves; market interest rates; and foreign currency exchange rates. If these factors or other circumstances change, we record an adjustment to the recognition of deferred tax assets to reflect our latest assessment of the amount of deferred tax assets that is probable will be realized. A deferred tax asset totaling $ 53 million ( December 31, 2018 : $ 83 million) has been recorded in a foreign subsidiary. This deferred tax asset primarily arose from a realized loss on internal restructuring of subsidiary corporations. Projections of various sources of income support the conclusion that the realizability of this deferred tax asset is probable and consequently, we have fully recognized this deferred tax asset. In the fourth quarter of 2018, the deferred tax assets in Canada and Peru were derecognized. Refer to note 12 for further details. Deferred Tax Assets Not Recognized As at December 31, 2019 As at December 31, 2018 Argentina $103 $174 Australia 15 154 Barbados 17 40 Canada 1,097 1,087 Chile 1,074 1,028 Côte d'Ivoire 5 — Dominican Republic — — Mali 8 — Peru 329 310 Saudi Arabia 70 70 Tanzania 156 156 United States 1 — Zambia — 24 $2,875 $3,043 Deferred Tax Assets Not Recognized relate to: non-capital loss carry forwards of $ 1,058 million ( 2018 : $ 1,134 million), capital loss carry forwards with no expiry date of $ 331 million ( 2018 : $ 447 million), and other deductible temporary differences with no expiry date of $ 1,486 million ( 2018 : $ 1,462 million). Source of Changes in Deferred Tax Balances For the years ended December 31 2019 2018 Temporary differences Property, plant and equipment ($1,851 ) ($15 ) Environmental rehabilitation 37 (302 ) Tax loss carry forwards (27 ) (389 ) AMT credits (10 ) — Inventory (42 ) 5 Derivatives — (74 ) Other 14 (26 ) ($1,879 ) ($801 ) Intraperiod allocation to: Income from continuing operations before income taxes ($1,073 ) ($730 ) Allocation to PPA (799 ) — Sale of 50% interest in Kalgoorlie 12 — Income tax payable (16 ) (38 ) Equity — (24 ) Other comprehensive income (3 ) (9 ) ($1,879 ) ($801 ) Income Tax Related Contingent Liabilities 2019 2018 At January 1 $306 $306 Net additions based on uncertain tax positions related to prior years 21 — At December 31 1 $327 $306 1 If reversed, the total amount of $327 million would be recognized as a benefit to income taxes on the income statement, and therefore would impact the reported effective tax rate. Tax Years Still Under Examination Argentina 2010-2011, 2013-2019 Australia 2015-2019 Canada 2015-2019 Chile 2015-2019 Côte d'Ivoire 2018-2019 Democratic Republic of Congo 2019 Dominican Republic 2015-2019 Mali 2017-2019 Papua New Guinea 2006-2019 Peru 2013-2019 Saudi Arabia 2007-2019 Tanzania 2018-2019 United States 2019 Zambia 2018-2019

CAPITAL STOCK

CAPITAL STOCK	12 Months Ended
	Dec. 31, 2019
Capital Stock [Abstract]
CAPITAL STOCK	CAPITAL STOCK Authorized Capital Stock Our authorized capital stock is composed of an unlimited number of common shares (issued 1,777,926,611 common shares as at December 31, 2019 ). Our common shares have no par value. On January 1, 2019, we issued 583,669,178 common shares to Randgold shareholders as a result of the Merger. Refer to note 4 for further details. On September 17, 2019, we issued 24,836,670 common shares to the non-controlling shareholders of Acacia in exchange for their shares in Acacia. Refer to note 4 for further details. Dividends In 2019 , we declared dividends in US dollars totaling $218 million ( 2018 : $199 million ) and paid $548 million ( 2018 : $125 million ). The Company’s dividend reinvestment plan resulted in $20 million ( 2018 : $14 million ) reinvested into the Company.

NON-CONTROLLING INTERESTS

NON-CONTROLLING INTERESTS	12 Months Ended
	Dec. 31, 2019
Interests In Other Entities [Abstract]
NON-CONTROLLING INTERESTS	NON-CONTROLLING INTERESTS a) Non-Controlling Interests (“NCI”) Continuity Nevada Gold Mines Pueblo Viejo Acacia Loulo-Gounkoto Tongon Other Total NCI in subsidiary at December 31, 2019 38.5 % 40 % — % 20 % 10.3 % Various At January 1, 2018 $— $1,290 $480 $— $— $11 $1,781 Share of income (loss) — 89 22 — — (1 ) 110 Cash contributed — — — — — 24 24 Disbursements — (108 ) — — — (15 ) (123 ) At December 31, 2018 $— $1,271 $502 $— $— $19 $1,792 Acquisitions 1 5,910 — — 887 61 (76 ) 6,782 Share of income (loss) 275 311 (7 ) 30 (3 ) (1 ) 605 Cash contributed 90 — — — — 50 140 Decrease in non-controlling interest 1 — — (495 ) — — (495 ) Disbursements (236 ) (158 ) — (16 ) (11 ) (8 ) (429 ) At December 31, 2019 $6,039 $1,424 $— $901 $47 ($16 ) $8,395 1 Refer to note 4 for further details. b) Summarized Financial Information on Subsidiaries with Material Non-Controlling Interests Summarized Balance Sheets Nevada Gold Mines Pueblo Viejo Loulo-Gounkoto Tongon As at December 31, 2019 As at December 31, 2018 As at December 31, 2019 As at December 31, 2018 As at December 31, 2019 As at December 31, 2018 As at December 31, 2019 As at December 31, 2018 Current assets $10,977 $— $500 $520 $406 $— $158 $— Non-current assets 15,909 — 4,303 3,469 4,662 — 424 — Total assets $26,886 $— $4,803 $3,989 $5,068 $— $582 $— Current liabilities 466 — 428 720 234 — 59 — Non-current liabilities 1,217 — 932 402 634 — 106 — Total liabilities $1,683 $— $1,360 $1,122 $868 $— $165 $— Summarized Statements of Income Nevada Gold Mines 1 Pueblo Viejo Loulo-Gounkoto Tongon For the years ended December 31 2019 2018 2019 2018 2019 2018 2019 2018 Revenue $2,707 $— $1,409 $1,333 $1,007 $— $384 $— Income (loss) from continuing operations after tax 739 — 708 206 158 — (29 ) — Other comprehensive income (loss) — — — — — — — — Total comprehensive income (loss) $739 $— $708 $206 $158 $— ($29 ) $— Dividends paid to NCI $236 $— $158 $— $16 $— $11 $— Summarized Statements of Cash Flows Nevada Gold Mines 1 Pueblo Viejo Loulo-Gounkoto Tongon For the years ended December 31 2019 2018 2019 2018 2019 2018 2019 2018 Net cash provided by (used in) operating activities $1,296 $— $504 $272 $259 $— $129 $— Net cash used in investing activities (539 ) — (107 ) (144 ) (130 ) — 61 — Net cash used in financing activities (379 ) — (397 ) (108 ) (80 ) — (107 ) — Net increase (decrease) in cash and cash equivalents $378 $— $— $20 $49 $— $83 $— 1 Nevada Gold Mines was formed July 1, 2019 and therefore results are presented from July 1, 2019 onwards.

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	12 Months Ended
	Dec. 31, 2019
Related party transactions [abstract]
RELATED PARTY TRANSACTIONS	<div style="line-height:120%;text-align:justify;font-size:9pt;"><font style="font-family:Arial;font-size:9pt;font-weight:bold;"> RELATED PARTY TRANSACTIONS</font></div><div style="line-height:120%;text-align:justify;font-size:8pt;"><font style="font-family:Arial;font-size:8pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;font-size:9pt;"><font style="font-family:Arial;font-size:9pt;">The Company’s related parties include its subsidiaries, joint operations, joint ventures and key management personnel. During its normal course of operations, the Company enters into transactions with its related parties for goods and services. Transactions between the Company and its subsidiaries and joint operations, which are related parties of the Company, have been eliminated on consolidation and are not disclosed in this note.</font></div><div style="line-height:120%;text-align:justify;font-size:9pt;"><font style="font-family:Arial;font-size:9pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;font-size:9pt;"><font style="font-family:Arial;font-size:9pt;font-weight:bold;">Remuneration of Key Management Personnel</font></div><div style="line-height:120%;text-align:justify;font-size:9pt;"><font style="font-family:Arial;font-size:9pt;">Key management personnel include the members of the Board of Directors and the executive leadership team. Compensation for key management personnel (including Directors) was as follows:</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="7" rowspan="1"></td></tr><tr><td style="width:66%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:14%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:16%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:Arial;font-size:8pt;">For the years ended December 31</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:Arial;font-size:8pt;font-weight:bold;">2019</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:Arial;font-size:8pt;">2018</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="font-size:8pt;"><font style="font-family:Arial;font-size:8pt;">Salaries and short-term employee benefits</font><font style="font-family:Arial;font-size:8pt;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">1</sup></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:Arial;font-size:8pt;font-weight:bold;">$22</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:Arial;font-size:8pt;">$19</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="font-size:8pt;"><font style="font-family:Arial;font-size:8pt;">Post-employment benefits</font><font style="font-family:Arial;font-size:8pt;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">2</sup></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:Arial;font-size:8pt;font-weight:bold;">1</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:Arial;font-size:8pt;">3</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:Arial;font-size:8pt;">Termination Benefits</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:Arial;font-size:8pt;font-weight:bold;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:Arial;font-size:8pt;">1</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="font-size:8pt;"><font style="font-family:Arial;font-size:8pt;">Share-based payments and other</font><font style="font-family:Arial;font-size:8pt;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">3</sup></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:Arial;font-size:8pt;font-weight:bold;">28</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:Arial;font-size:8pt;">11</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:Arial;font-size:8pt;font-weight:bold;">$51</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:Arial;font-size:8pt;">$34</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div></div><div style="line-height:120%;padding-top:2px;text-align:justify;font-size:8pt;"><font style="font-family:Arial;font-size:8pt;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">1 </sup></font><font style="font-family:Arial;font-size:8pt;">Includes annual salary and annual short-term incentives/other bonuses earned in the year.</font></div><div style="line-height:120%;text-align:justify;font-size:8pt;"><font style="font-family:Arial;font-size:8pt;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">2</sup></font><font style="font-family:Arial;font-size:8pt;"> Represents Company contributions to retirement savings plans.</font></div><div style="line-height:120%;text-align:justify;font-size:8pt;"><font style="font-family:Arial;font-size:8pt;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">3</sup></font><font style="font-family:Arial;font-size:8pt;"> Relates to DSU, RSU, PRSU and LTIP grants and other compensation.</font></div></div>" id="sjs-B4">&lt;div style="font-family:Times New Roman;font-size:10pt;">&lt;div style="line-height:120%;text-align:justify;font-size:9pt;">&lt;font style="font-family:Arial;font-size:9pt;font-weight:bold;"> RELATED PARTY TRANSACTIONS&lt;/font>&lt;/div>&lt;div style="line-height:120%;text-align:justify;font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;">&lt;br clear="none"/>&lt;/font>&lt;/div>&lt;div style="line-height:120%;text-align:justify;font-size:9pt;">&lt;font style="font-family:Arial;font-size:9pt;">The Company&#8217;s related parties include its subsidiaries, joint operations, joint ventures and key management personnel. During its normal course of operations, the Company enters into transactions with its related parties for goods and services. Transactions between the Company and its subsidiaries and joint operations, which are related parties of the Company, have been eliminated on consolidation and are not disclosed in this note.&lt;/font>&lt;/div>&lt;div style="line-height:120%;text-align:justify;font-size:9pt;">&lt;font style="font-family:Arial;font-size:9pt;">&lt;br clear="none"/>&lt;/font>&lt;/div>&lt;div style="line-height:120%;text-align:justify;font-size:9pt;">&lt;font style="font-family:Arial;font-size:9pt;font-weight:bold;">Remuneration of Key Management Personnel&lt;/font>&lt;/div>&lt;div style="line-height:120%;text-align:justify;font-size:9pt;">&lt;font style="font-family:Arial;font-size:9pt;">Key management personnel include the members of the Board of Directors and the executive leadership team. Compensation for key management personnel (including Directors) was as follows:&lt;/font>&lt;/div>&lt;div style="line-height:120%;text-align:left;font-size:10pt;">&lt;div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;">&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;">&lt;tr>&lt;td colspan="7" rowspan="1">&lt;/td>&lt;/tr>&lt;tr>&lt;td style="width:66%;" rowspan="1" colspan="1">&lt;/td>&lt;td style="width:1%;" rowspan="1" colspan="1">&lt;/td>&lt;td style="width:14%;" rowspan="1" colspan="1">&lt;/td>&lt;td style="width:1%;" rowspan="1" colspan="1">&lt;/td>&lt;td style="width:1%;" rowspan="1" colspan="1">&lt;/td>&lt;td style="width:16%;" rowspan="1" colspan="1">&lt;/td>&lt;td style="width:1%;" rowspan="1" colspan="1">&lt;/td>&lt;/tr>&lt;tr>&lt;td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1">&lt;div style="text-align:left;font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;">For the years ended December 31&lt;/font>&lt;/div>&lt;/td>&lt;td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1">&lt;div style="text-align:right;font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;font-weight:bold;">2019&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1">&lt;div style="text-align:left;font-size:10pt;">&lt;font style="font-family:inherit;font-size:10pt;">&lt;br clear="none"/>&lt;/font>&lt;/div>&lt;/td>&lt;td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1">&lt;div style="text-align:right;font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;">2018&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1">&lt;div style="text-align:left;font-size:10pt;">&lt;font style="font-family:inherit;font-size:10pt;">&lt;br clear="none"/>&lt;/font>&lt;/div>&lt;/td>&lt;/tr>&lt;tr>&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1">&lt;div style="font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;">Salaries and short-term employee benefits&lt;/font>&lt;font style="font-family:Arial;font-size:8pt;">&lt;sup style="vertical-align:top;line-height:120%;font-size:5pt">1&lt;/sup>&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1">&lt;div style="text-align:left;font-size:10pt;">&lt;font style="font-family:inherit;font-size:10pt;">&lt;br clear="none"/>&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1">&lt;div style="text-align:right;font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;font-weight:bold;">$22&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1">&lt;div style="text-align:left;font-size:10pt;">&lt;font style="font-family:inherit;font-size:10pt;">&lt;br clear="none"/>&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1">&lt;div style="text-align:left;font-size:10pt;">&lt;font style="font-family:inherit;font-size:10pt;">&lt;br clear="none"/>&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1">&lt;div style="text-align:right;font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;">$19&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1">&lt;div style="text-align:left;font-size:10pt;">&lt;font style="font-family:inherit;font-size:10pt;">&lt;br clear="none"/>&lt;/font>&lt;/div>&lt;/td>&lt;/tr>&lt;tr>&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1">&lt;div style="font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;">Post-employment benefits&lt;/font>&lt;font style="font-family:Arial;font-size:8pt;">&lt;sup style="vertical-align:top;line-height:120%;font-size:5pt">2&lt;/sup>&lt;/font>&lt;/div>&lt;/td>&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1">&lt;div style="text-align:right;font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;font-weight:bold;">1&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1">&lt;div style="text-align:left;font-size:10pt;">&lt;font style="font-family:inherit;font-size:10pt;">&lt;br clear="none"/>&lt;/font>&lt;/div>&lt;/td>&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1">&lt;div style="text-align:right;font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;">3&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1">&lt;div style="text-align:left;font-size:10pt;">&lt;font style="font-family:inherit;font-size:10pt;">&lt;br clear="none"/>&lt;/font>&lt;/div>&lt;/td>&lt;/tr>&lt;tr>&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1">&lt;div style="text-align:left;font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;">Termination Benefits&lt;/font>&lt;/div>&lt;/td>&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1">&lt;div style="text-align:right;font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;font-weight:bold;">&#8212;&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1">&lt;div style="text-align:left;font-size:10pt;">&lt;font style="font-family:inherit;font-size:10pt;">&lt;br clear="none"/>&lt;/font>&lt;/div>&lt;/td>&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1">&lt;div style="text-align:right;font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;">1&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1">&lt;div style="text-align:left;font-size:10pt;">&lt;font style="font-family:inherit;font-size:10pt;">&lt;br clear="none"/>&lt;/font>&lt;/div>&lt;/td>&lt;/tr>&lt;tr>&lt;td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1">&lt;div style="font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;">Share-based payments and other&lt;/font>&lt;font style="font-family:Arial;font-size:8pt;">&lt;sup style="vertical-align:top;line-height:120%;font-size:5pt">3&lt;/sup>&lt;/font>&lt;/div>&lt;/td>&lt;td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1">&lt;div style="text-align:right;font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;font-weight:bold;">28&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1">&lt;div style="text-align:left;font-size:10pt;">&lt;font style="font-family:inherit;font-size:10pt;">&lt;br clear="none"/>&lt;/font>&lt;/div>&lt;/td>&lt;td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1">&lt;div style="text-align:right;font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;">11&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1">&lt;div style="text-align:left;font-size:10pt;">&lt;font style="font-family:inherit;font-size:10pt;">&lt;br clear="none"/>&lt;/font>&lt;/div>&lt;/td>&lt;/tr>&lt;tr>&lt;td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1">&lt;div style="overflow:hidden;font-size:10pt;">&lt;font style="font-family:inherit;font-size:10pt;">&#160;&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1">&lt;div style="text-align:left;font-size:10pt;">&lt;font style="font-family:inherit;font-size:10pt;">&lt;br clear="none"/>&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1">&lt;div style="text-align:right;font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;font-weight:bold;">$51&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1">&lt;div style="text-align:left;font-size:10pt;">&lt;font style="font-family:inherit;font-size:10pt;">&lt;br clear="none"/>&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1">&lt;div style="text-align:left;font-size:10pt;">&lt;font style="font-family:inherit;font-size:10pt;">&lt;br clear="none"/>&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1">&lt;div style="text-align:right;font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;">$34&lt;/font>&lt;/div>&lt;/td>&lt;td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1">&lt;div style="text-align:left;font-size:10pt;">&lt;font style="font-family:inherit;font-size:10pt;">&lt;br clear="none"/>&lt;/font>&lt;/div>&lt;/td>&lt;/tr>&lt;/table>&lt;/div>&lt;/div>&lt;div style="line-height:120%;padding-top:2px;text-align:justify;font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;">&lt;sup style="vertical-align:top;line-height:120%;font-size:5pt">1 &lt;/sup>&lt;/font>&lt;font style="font-family:Arial;font-size:8pt;">Includes annual salary and annual short-term incentives/other bonuses earned in the year.&lt;/font>&lt;/div>&lt;div style="line-height:120%;text-align:justify;font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;">&lt;sup style="vertical-align:top;line-height:120%;font-size:5pt">2&lt;/sup>&lt;/font>&lt;font style="font-family:Arial;font-size:8pt;"> Represents Company contributions to retirement savings plans.&lt;/font>&lt;/div>&lt;div style="line-height:120%;text-align:justify;font-size:8pt;">&lt;font style="font-family:Arial;font-size:8pt;">&lt;sup style="vertical-align:top;line-height:120%;font-size:5pt">3&lt;/sup>&lt;/font>&lt;font style="font-family:Arial;font-size:8pt;"> Relates to DSU, RSU, PRSU and LTIP grants and other compensation.&lt;/font>&lt;/div>&lt;/div>

STOCK-BASED COMPENSATION

STOCK-BASED COMPENSATION	12 Months Ended
	Dec. 31, 2019
Share-based Payment Arrangements [Abstract]
STOCK-BASED COMPENSATION	STOCK-BASED COMPENSATION a) Global Employee Share Plan (GESP) In 2016, Barrick launched a Global Employee Share Plan. This is a plan awarded to all eligible employees. During 2019 , Barrick contributed and expensed $ nil to this plan (2018: $12 million ). b) Restricted Share Units (RSUs) and Deferred Share Units (DSUs) Under our RSU plan, selected employees are granted RSUs where each RSU has a value equal to one Barrick common share. RSUs generally vest from two-and-a-half years to three years and are settled in cash upon vesting. Additional RSUs are credited to reflect dividends paid on Barrick common shares over the vesting period. Compensation expense for RSUs incorporates an expected forfeiture rate. The expected forfeiture rate is estimated based on historical forfeiture rates and expectations of future forfeiture rates. We make adjustments if the actual forfeiture rate differs from the expected rate. At December 31, 2019 , the weighted average remaining contractual life of RSUs was 0.74 years ( 2018 : 0.93 years). Compensation expense for RSUs was a $ 9 million charge to earnings in 2019 ( 2018 : $ 29 million) and is presented as a component of corporate administration and operating segment administration, consistent with the classification of other elements of compensation expense for those employees who had RSUs. Under our DSU plan, Directors must receive a specified portion of their basic annual retainer in the form of DSUs, with the option to elect to receive 100% of such retainer in DSUs. Officers may also elect to receive a portion or all of their incentive compensation in the form of DSUs. Each DSU has the same value as one Barrick common share. DSUs must be retained until the Director or officer leaves the Board or Barrick, at which time the cash value of the DSUs will be paid out. Additional DSUs are credited to reflect dividends paid on Barrick common shares. DSUs are recorded at fair value on the grant date and are adjusted for changes in fair value. The fair value of amounts granted each period together with changes in fair value are expensed. DSU and RSU Activity (Number of Units in Thousands) DSUs Fair value RSUs Fair value At January 1, 2018 725 $11.6 4,537 $37.7 Settled for cash (143 ) (1.9 ) (3,089 ) (34.6 ) Forfeited — — (731 ) (7.9 ) Granted 182 2.3 2,974 35.3 Credits for dividends — — 60 0.8 Change in value — (0.8 ) — 4.7 At December 31, 2018 764 $11.2 3,751 $36.0 Settled for cash (404 ) (6.5 ) (2,131 ) (30.7 ) Forfeited — — (1,157 ) (15.8 ) Granted 116 1.9 2,600 35.3 Credits for dividends — — 47 0.8 Change in value — 2.2 — 15.9 At December 31, 2019 476 $8.8 3,110 $41.5 c) Performance Granted Share Units (PGSUs) In 2014, Barrick launched a PGSU plan. Under this plan, selected employees are granted PGSUs, where each PGSU has a value equal to one Barrick common share. At December 31, 2019 , 3,867 thousand units had been granted at a fair value of $ 33 million ( 2018 : 3,024 thousand units at a fair value of $ 18 million). d) Employee Share Purchase Plan (ESPP) In 2008, Barrick launched an Employee Share Purchase Plan. This plan enabled Barrick employees to purchase Company shares through payroll deduction. During 2019, Barrick contributed and expensed $ nil to this plan (2018: $0.1 million ). This plan was replaced by the Barrick Share Purchase Plan in 2018. e) Barrick Share Purchase Plan (BSPP) In 2018, Barrick launched a Barrick Share Purchase Plan. This plan encourages Barrick employees to purchase Company shares by matching their contributions one to one up to an annual maximum. During 2019 , Barrick contributed and expensed $3 million to this plan ( 2018 : $2 million ). f) Long-Term Incentive Plan (LTIP) In 2019, Barrick assumed the Long-Term Incentive Plan as a result of the Merger. Under this plan, restricted shares are issued to selected employees subject to certain performance criteria. During 2019, Barrick expensed $9 million to this plan. g) Stock Options Under Barrick’s stock option plan, certain officers and key employees of the Company may purchase common shares at an exercise price that is equal to the closing share price on the day before the grant of the option. The grant date is the date when the details of the award, including the number of options granted by individual and the exercise price, are approved. Stock options vest evenly over four years, beginning in the year after granting. Options are exercisable over seven years. At December 31, 2019 , 0.3 million ( 2018 : 0.8 million) stock options were outstanding. Compensation expense for stock options was $ nil in 2019 ( 2018 : $ nil ), and is presented as a component of corporate administration and operating segment administration, consistent with the classification of other elements of compensation expense for those employees who had stock options. The recognition of compensation expense for stock options had no impact on earnings per share for 2019 and 2018 . Total intrinsic value relating to options exercised in 2019 was $1 million ( 2018 : $ nil ). Employee Stock Option Activity (Number of Shares in Millions) 2019 2018 Shares Average Price Shares Average Price C$ options At January 1 0.3 $13 0.3 $13 Exercised (0.1 ) 16 — 10 At December 31 0.2 $10 0.3 $13 US$ options At January 1 0.5 $37 0.7 $40 Forfeited — — (0.1 ) 34 Cancelled/expired (0.4 ) 39 (0.1 ) 49 At December 31 0.1 $32 0.5 $37 Stock Options Outstanding (Number of Shares in Millions) Outstanding Exercisable Range of exercise prices Shares Average price Average life (years) Intrinsic value 1 ($ millions) Shares Average price Intrinsic value 1 ($ millions) C$ options $9 - $17 0.2 $10 2.6 $2 0.2 $10 $2 US$ options $32 - $41 0.1 $32 0.1 $— 0.1 $32 $— 1 Based on the closing market share price on December 31, 2019 of C$ 24.12 and US$ 18.59 . As at December 31, 2019 , there was $ nil ( 2018 : $ nil ) of total unrecognized compensation cost relating to unvested stock options.

POST-RETIREMENT BENEFITS

POST-RETIREMENT BENEFITS	12 Months Ended
	Dec. 31, 2019
Employee Benefits [Abstract]
POST-RETIREMENT BENEFITS	POST-RETIREMENT BENEFITS Barrick operates various post-employment plans, including both defined benefit and defined contribution pension plans and other post-retirement plans. The table below outlines where the Company’s post-employment amounts and activity are included in the financial statements: For the years ended December 31 2019 2018 Balance sheet obligations for: Defined pension benefits $39 $36 Other post-retirement benefits 4 6 Liability in the balance sheet $43 $42 Income statement charge included income statement for: Defined pension benefits $1 $1 Other post-retirement benefits — — $1 $1 Measurements for: Defined pension benefits ($5 ) ($4 ) Other post-retirement benefits 2 — ($3 ) ($4 ) The amounts recognized in the balance sheet are determined as follows: For the years ended December 31 2019 2018 Present value of funded obligations $69 $57 Fair value of plan assets (76 ) (65 ) (Surplus) deficit of funded plans ($7 ) ($8 ) Present value of unfunded obligations 46 44 Total deficit of defined benefit pension plans $39 $36 Impact of minimum funding requirement/asset ceiling — — Liability in the balance sheet $39 $36 a) Defined Benefit Pension Plans We have qualified defined benefit pension plans that cover certain of our former United States and Canadian employees and provide benefits based on an employee’s years of service. The plans operate under similar regulatory frameworks and generally face similar risks. The majority of benefit payments are from trustee-administered funds; however, there are also a number of unfunded plans where the Company meets the benefit payment obligation as it falls due. Plan assets held in trust are governed by local regulations and practice in each country. Responsibility for governance of the plans - overseeing all aspects of the plans including investment decisions and contribution schedules - lies with the Company. We have set up pension committees to assist in the management of the plans and have also appointed experienced independent professional experts such as actuaries, custodians and trustees. The significant actuarial assumptions were as follows: As at December 31 Pension Plans 2019 Other Post-Retirement Benefits 2019 Pension Plans 2018 Other Post-Retirement Benefits 2018 Discount rate 2.50%-3.30% 3.35 % 3.75-4.65% 4.45 % b) Other Post-Retirement Benefits We provide post-retirement medical, dental, and life insurance benefits to certain employees in the US. All of these plans are unfunded. The weighted average duration of the defined benefit obligation is 9 years ( 2018 : 14 years). Less than a year Between 1-2 years Between 2-5 years Over 5 years Total Pension benefits $7 $7 $22 $139 $175 Other post-retirement benefits 1 1 2 5 9 At December 31, 2018 $8 $8 $24 $144 $184 Pension benefits 27 7 20 95 149 Other post-retirement benefits — — 1 3 4 At December 31, 2019 $27 $7 $21 $98 $153 c) Defined Contribution Pension Plans Certain employees take part in defined contribution employee benefit plans and we also have a retirement plan for certain officers of the Company. Our share of contributions to these plans, which is expensed in the year it is earned by the employee, was $ 41 million in 2019 ( 2018 : $ 35 million).

CONTINGENCIES

CONTINGENCIES	12 Months Ended
	Dec. 31, 2019
Contingent Liabilities [Abstract]
CONTINGENCIES	CONTINGENCIES Certain conditions may exist as of the date the financial statements are issued that may result in a loss to the Company, but which will only be resolved when one or more future events occur or fail to occur. The impact of any resulting loss from such matters affecting these financial statements and noted below may be material. Litigation and Claims In assessing loss contingencies related to legal proceedings that are pending against us or unasserted claims that may result in such proceedings, the Company with assistance from its legal counsel, evaluates the perceived merits of any legal proceedings or unasserted claims as well as the perceived merits of the amount of relief sought or expected to be sought. Proposed Canadian Shareholder Class Action (Veladero) On July 28, 2018, Peter Gradja, a purported shareholder of Barrick Gold Corporation, commenced a proposed class action against the Company in the Ontario Superior Court of Justice. The action seeks unspecified damages and other relief, purportedly on behalf of anyone who purchased Barrick shares during the period from February 15, 2017 to April 24, 2017 and held some or all of those shares at the close of trading on April 24, 2017. It was alleged that Barrick made false and misleading statements concerning production estimates and environmental risks at the Veladero mine. On April 11, 2019, Barrick received an offer from the plaintiff to dismiss the proposed class action lawsuit without costs. The Ontario Superior Court of Justice ordered the dismissal of the proposed class action lawsuit on August 19, 2019, and the matter is now closed. Proposed Canadian Securities Class Actions (Pascua-Lama) Between April and September 2014, eight proposed class actions were commenced against the Company in Canada in connection with the Pascua-Lama project. Four of the proceedings were commenced in Ontario, two were commenced in Alberta, one was commenced in Saskatchewan, and one was commenced in Quebec. The proceedings alleged that the Company made false and misleading statements to the investing public relating (among other things) to the capital costs of the Pascua-Lama project (the “Project”), the amount of time it would take before production commenced at the Project, and the environmental risks of the Project, as well as alleged internal control failures and certain accounting-related matters. The first Ontario and Alberta actions were commenced by Statements of Claim on April 15 and 17, 2014, respectively. The same law firm acted for the plaintiffs in these two proceedings, and the Statements of Claim were largely identical. Aaron Regent, Jamie Sokalsky and Ammar Al-Joundi were also named as defendants in the two actions. Both actions purported to be on behalf of anyone who, during the period from May 7, 2009 to May 23, 2013, purchased Barrick securities in Canada. Both actions sought $4.3 billion in general damages and $350 million in special damages for alleged misrepresentations in the Company’s public disclosure. The first Ontario action was subsequently consolidated with the fourth Ontario action, as discussed below. The first Alberta action was discontinued by plaintiffs’ counsel on June 26, 2015. The second Ontario action was commenced on April 24, 2014. Aaron Regent, Jamie Sokalsky, Ammar Al-Joundi and Peter Kinver were also named as defendants. Following a September 8, 2014 amendment to the Statement of Claim, this action purported to be on behalf of anyone who acquired Barrick securities during the period from October 29, 2010 to October 30, 2013, and sought $3 billion in damages for alleged misrepresentations in the Company’s public disclosure. The amended claim also reflected the addition of a law firm that previously acted as counsel in a third Ontario action, which was commenced by Notice of Action on April 28, 2014 and included similar allegations but was never served or pursued. As a result of the outcome of the carriage motion and appeals described below, the second Ontario action was subsequently stayed. The Quebec action was commenced on April 30, 2014. Aaron Regent, Jamie Sokalsky, Ammar Al-Joundi and Peter Kinver are also named as defendants. This action purports to be on behalf of any person who resides in Quebec and acquired Barrick securities during the period from May 7, 2009 to November 1, 2013. The action seeks unspecified damages for alleged misrepresentations in the Company’s public disclosure. The second Alberta action was commenced on May 23, 2014. Aaron Regent, Jamie Sokalsky, Ammar Al-Joundi and Peter Kinver were also named as defendants. This action purported to be on behalf of any person who acquired Barrick securities during the period from May 7, 2009 to November 1, 2013, and sought $6 billion in damages for alleged misrepresentations in the Company's public disclosure. The action was dismissed on consent on June 19, 2017. The Saskatchewan action was commenced by Statement of Claim on May 26, 2014. Aaron Regent, Jamie Sokalsky, Ammar Al-Joundi and Peter Kinver were also named as defendants. This action purported to be on behalf of any person who acquired Barrick securities during the period from May 7, 2009 to November 1, 2013, and sought $6 billion in damages for alleged misrepresentations in the Company's public disclosure. The action was discontinued by plaintiffs’ counsel on December 19, 2016. The fourth Ontario action was commenced on September 5, 2014. Aaron Regent, Jamie Sokalsky, Ammar Al-Joundi and Peter Kinver are also named as defendants. This action purports to be on behalf of any person who acquired Barrick securities during the period from May 7, 2009 to November 1, 2013 in Canada, and seeks $3 billion in damages plus an unspecified amount for alleged misrepresentations in the Company's public disclosure. The Statement of Claim was amended on October 20, 2014 to include two additional law firms, one of which was acting as counsel in the first Ontario action referred to above and the other of which no longer exists. In January 2018, plaintiffs’ counsel delivered a consolidated Statement of Claim in this action. The Statement of Claim was amended again in May 2018. In November 2014, an Ontario court heard a motion to determine which of the competing counsel groups would take the lead in the Ontario litigation. The court issued a decision in December 2014 in favor of the counsel group that commenced the first and fourth Ontario actions, which were then consolidated in a single action. The lower court’s decision was subsequently affirmed by the Divisional Court in May 2015 and the Court of Appeal for Ontario in July 2016 following appeals by the losing counsel group. The losing counsel group sought leave to appeal to the Supreme Court of Canada but later discontinued the application after reaching an agreement with the counsel group that commenced the first and fourth Ontario actions. The proposed representative plaintiffs in the Quebec and Ontario actions have brought motions seeking: (i) leave to proceed with statutory misrepresentation claims pursuant to provincial securities legislation; and (ii) orders certifying the actions as class actions. In August 2018, the Company and Aaron Regent, Jamie Sokalsky, Ammar Al-Joundi and Peter Kinver delivered their Statement of Defence in the Ontario action. In May 2019, the motion for leave to proceed with statutory misrepresentation claims and for class certification was heard in the Quebec action. Additional submissions were heard in December 2019. The Quebec court has reserved judgment in this matter. In July 2019, the motion for leave to proceed with statutory misrepresentation claims was heard in the Ontario action. In October 2019, the Ontario Superior Court of Justice dismissed all but one of those claims. The sole remaining statutory misrepresentation claim pertains to a statement concerning the water management system in Chile made by the Company in its Management's Discussion and Analysis for the second quarter of 2012. The Company has filed a motion in the Divisional Court for leave to appeal the decision to allow the sole remaining statutory misrepresentation claim to proceed. The Plaintiffs have also filed an appeal to the Court of Appeal for Ontario with respect to the claims that were dismissed. The motion for class certification in Ontario is scheduled to be heard in March 2020. The Company intends to vigorously defend all of the proposed Canadian securities class actions. No amounts have been recorded for any potential liability arising from any of the proposed class actions, as the Company cannot reasonably predict the outcome. Pascua-Lama – SMA Regulatory Sanctions In May 2013, Compañía Minera Nevada (“CMN”), Barrick’s Chilean subsidiary that holds the Chilean portion of the Project, received a Resolution (the “Original Resolution”) from Chile’s environmental regulator (the Superintendencia del Medio Ambiente, or “SMA”) that requires CMN to complete the water management system for the Project in accordance with the Project’s environmental permit before resuming construction activities in Chile. The Original Resolution also required CMN to pay an administrative fine of approximately $16 million for deviations from certain requirements of the Project’s Chilean environmental approval, including a series of reporting requirements and instances of non-compliance related to the Project’s water management system. CMN paid the administrative fine in May 2013. In June 2013, CMN began engineering studies to review the Project’s water management system in accordance with the Original Resolution. The studies were suspended in the second half of 2015 as a result of CMN’s decision to file a temporary and partial closure plan for the Project. The review of the Project’s water management system may require a new environmental approval and the construction of additional water management facilities. In June 2013, a group of local farmers and indigenous communities challenged the Original Resolution. The challenge, which was brought in the Environmental Court of Santiago, Chile (the “Environmental Court”), claimed that the fine was inadequate and requested more severe sanctions against CMN including the revocation of the Project’s environmental permit. The SMA presented its defense of the Original Resolution in July 2013. On August 2, 2013, CMN joined as a party to this proceeding and vigorously defended the Original Resolution. On March 3, 2014, the Environmental Court annulled the Original Resolution and remanded the matter back to the SMA for further consideration in accordance with its decision (the “Environmental Court Decision”). In particular, the Environmental Court ordered the SMA to issue a new administrative decision that recalculated the amount of the fine to be paid by CMN using a different methodology and addressed certain other errors it identified in the Original Resolution. The Environmental Court did not annul the portion of the Original Resolution that required the Company to halt construction on the Chilean side of the Project until the water management system is completed in accordance with the Project’s environmental permit. On December 30, 2014, the Chilean Supreme Court declined to consider CMN’s appeal of the Environmental Court Decision on procedural grounds. As a result of the Supreme Court’s ruling, on April 22, 2015, the SMA reopened the administrative proceeding against CMN in accordance with the Environmental Court Decision. On April 22, 2015, CMN was notified that the SMA had initiated a new administrative proceeding for alleged deviations from certain requirements of the Project’s environmental approval, including with respect to the Project’s environmental impact and a series of monitoring requirements. In May 2015, CMN submitted a compliance program to address certain of the allegations and presented its defense to the remainder of the alleged deviations. The SMA rejected CMN’s proposed compliance program on June 24, 2015, and denied CMN’s administrative appeal of that decision on July 31, 2015. On December 30, 2016, the Environmental Court rejected CMN’s appeal and CMN declined to challenge this decision. On June 8, 2016, the SMA consolidated the two administrative proceedings against CMN into a single proceeding encompassing both the reconsideration of the Original Resolution in accordance with the decision of the Environmental Court and the alleged deviations from the Project’s environmental approval notified by the SMA in April 2015. On January 17, 2018, CMN received the revised resolution (the “Revised Resolution”) from the SMA, in which the environmental regulator reduced the original administrative fine from approximately $16 million to $11.5 million and ordered the closure of existing surface facilities on the Chilean side of the Project in addition to certain monitoring activities. The Revised Resolution does not revoke the Project’s environmental approval. CMN filed an appeal of the Revised Resolution on February 3, 2018 with the First Environmental Court of Antofagasta (the “Antofagasta Environmental Court”). On October 12, 2018, the Antofagasta Environmental Court issued an administrative ruling ordering review of the significant sanctions ordered by the SMA. CMN was not a party to this process. In its ruling, the Antofagasta Environmental Court rejected four of the five closure orders contained in the Revised Resolution and remanded the related environmental infringements back to the SMA for further consideration. A new resolution from the SMA with respect to the sanctions for these four infringements could include a range of potential sanctions, including additional fines, as provided in the Chilean legislation. The Antofagasta Environmental Court upheld the SMA’s decision to order the closure of the Chilean side of the Project for the fifth infringement. As previously noted, CMN has appealed the Revised Resolution and this appeal remains in place. A hearing on the appeal was held on November 6, 2018, and CMN continues to evaluate all of its legal options. A decision of the Environmental Court on the remaining appeals is still pending. Following the issuance of the Revised Resolution, the Company reversed the estimated amount previously recorded for any additional proposed administrative fines in this matter. In addition, the Company reclassified Pascua-Lama’s proven and probable gold reserves as measured and indicated resources and recorded a pre-tax impairment of $429 million in the fourth quarter of 2017. No additional amounts have been recorded for any potential liability arising from the Antofagasta Environmental Court’s October 12, 2018 ruling and subsequent review by the SMA, as the Company cannot reasonably predict any potential losses and the SMA has not issued any additional proposed administrative fines. On March 14, 2019, the Chilean Supreme Court annulled the October 12, 2018 administrative decision of the Antofagasta Environmental Court on procedural grounds and remanded the case back to the Environmental Court for review by a different panel of judges. The Chilean Supreme Court did not review the merits of the Revised Resolution, which remains in effect. CMN’s appeal of the Revised Resolution remains pending before the new panel of judges ordered by the Chilean Supreme Court, which heard arguments on July 23, 2019. The Company intends to vigorously defend this matter. Pascua-Lama – Water Quality Review CMN initiated a review of the baseline water quality of the Rio Estrecho in August 2013 as required by a July 15, 2013 decision of the Court of Appeals of Copiapo, Chile. The purpose of the review was to establish whether the water quality baseline has changed since the Pascua-Lama project received its environmental approval in February 2006 and, if so, to require CMN to adopt the appropriate corrective measures. As a result of that study, CMN requested certain modifications to its environmental permit water quality requirements. On June 6, 2016, the responsible agency approved a partial amendment of the environmental permit to better reflect the water quality baseline from 2009. That approval was appealed by certain water users and indigenous residents of the Huasco Valley. On October 19, 2016, the Chilean Committee of Ministers for the Environment, which has jurisdiction over claims of this nature, voted to uphold the permit amendments. On January 27, 2017, the Environmental Court agreed to consider an appeal of the Chilean Committee’s decision brought by CMN and the water users and indigenous residents. A hearing took place on July 25, 2017. On December 12, 2017, the water users withdrew their appeal. The Environmental Court dismissed that appeal on January 5, 2018. On December 10, 2018, the Environmental Court rejected the remaining challenges and upheld the environmental permit amendment. On December 29, 2018, the indigenous residents appealed the Environmental Court’s decision to the Chilean Supreme Court. On February 19, 2019, the Chilean Supreme Court accepted the appeal by the indigenous residents of the Environmental Court's decision. The Chilean Supreme Court heard oral arguments on September 10 and 11, 2019. On January 6, 2020, the Chilean Supreme Court affirmed the Environmental Court’s decision, upholding the environmental permit amendment and recognizing the water quality baseline from 2005 to September 2009. The matter is now closed. Veladero – September 2015 Release of Cyanide-Bearing Process Solution San Juan Provincial Regulatory Sanction Proceeding On September 13, 2015, a valve on a leach pad pipeline at the Company’s Veladero mine in San Juan Province, Argentina failed, resulting in a release of cyanide-bearing process solution into a nearby waterway through a diversion channel gate that was open at the time of the incident. Minera Andina del Sol SRL (formerly, Minera Argentina Gold SRL) (“MAS”), Barrick’s Argentine subsidiary that operates the Veladero mine, notified regulatory authorities of the situation. Environmental monitoring was conducted by MAS and independent third parties following the incident. The Company believes this monitoring demonstrates that the incident posed no risk to human health at downstream communities. A temporary restriction on the addition of new cyanide to the mine’s processing circuit was lifted on September 24, 2015, and mine operations returned to normal. Monitoring and inspection of the mine site continued in accordance with a court order until November 28, 2018 when that order was rescinded. On October 9, 2015, the San Juan Provincial mining authority initiated an administrative sanction process against MAS for alleged violations of the mining code relating to the valve failure and release of cyanide-bearing process solution. On March 15, 2016, MAS was formally notified of the imposition of an administrative fine in connection with the solution release. On April 6, 2016, MAS sought reconsideration of certain aspects of the decision but paid the administrative fine of approximately $10 million (at the then-applicable Argentine peso to U.S. dollar exchange rate) while the request for reconsideration was pending. On July 11, 2017, the San Juan government rejected MAS’ administrative appeal of this decision. On September 5, 2017, the Company commenced a legal action to continue challenging certain aspects of the decision before the San Juan courts. MAS has implemented a remedial action plan at Veladero in response to the incident , as required by the San Juan Provincial mining authority. Criminal Matters Provincial Action On March 11, 2016, a San Juan Provincial Court laid criminal charges based on alleged negligence against nine current and former MAS employees in connection with the solution release (the “Provincial Action”). On August 15, 2017, the Court of Appeals confirmed the indictment against eight of the nine individuals that had been charged with alleged negligence in connection with the solution release. MAS is not a party to the Provincial Action. On August 23, 2018, the eight defendants in the Provincial Action were granted probation. The terms of the probation do not require the defendants to recognize any wrongdoing. If the defendants complied with good behavior and community service requirements for one year, the Provincial Action would be dismissed. All defendants have now completed the probationary period for community service and good behavior and requested dismissal of the charges in the Provincial Action. Federal Investigation A federal criminal investigation was initiated by a Buenos Aires federal court based on the alleged failure of certain current and former federal and provincial government officials and individual directors of MAS to prevent the 2015 solution release (the “Federal Investigation”). The federal judge overseeing the Federal Investigation admitted a local group in San Juan Province as a party. In March 2016, this group requested an injunction against the operations of the Veladero mine. The federal judge ordered technical studies to assess the solution release and its impact and appointed a committee to conduct a site visit, which occurred in late April 2016. On May 5, 2016, the National Supreme Court of Argentina limited the scope of the Federal Investigation to the potential criminal liability of the federal government officials, ruling that the Buenos Aires federal court does not have jurisdiction to investigate the solution release. As a result of this decision, the investigation into the incident continued to be conducted by the San Juan Provincial judge in the Provincial Action. On April 11, 2018, the federal judge indicted three former federal officials alleging breach of duty in connection with their actions and omissions related to the failure to maintain adequate environmental controls. After an appeal process, on July 10, 2018, the Court of Appeals confirmed the indictments. On October 16, 2018, the investigation into the alleged failure of three former federal government officials to maintain adequate environmental controls during 2015 was concluded and the case was sent to trial. On June 29, 2018, the federal judge ordered additional environmental studies to be conducted in communities downstream from the Veladero mine as part of the investigation into the alleged failure of three former federal government officials to maintain adequate environmental controls. On July 6, 2018, the Province of San Juan challenged this order on jurisdictional grounds. On August 9, 2018, the Federal Court ordered additional studies. One of the defendants appointed an expert to monitor the sampling and analysis required to perform such studies. The Federal Court rejected the jurisdictional challenge, which resulted in an appeal to the Federal Supreme Court on August 24, 2018 to adjudicate jurisdiction. To date, the studies have not been performed. Glaciers Investigation On October 17, 2016, a separate criminal investigation was initiated by the federal judge overseeing the Federal Investigation based on the alleged failure of federal government officials to regulate the Veladero mine under Argentina’s glacier legislation (the “Glacier Investigation”) (see “Argentine Glacier Legislation and Constitutional Litigation” below). On June 16, 2017, MAS submitted a motion to challenge the federal judge’s decision to assign this investigation to himself. MAS also requested to be admitted as a party to the proceeding in order to present evidence in support of MAS. On September 14, 2017, the Court of Appeals ordered the federal judge to consolidate the two investigations and allowed MAS to participate in the consolidated Federal Investigation. On November 21, 2017, the Court of Appeals clarified that MAS is not a party to the case and therefore did not have standing to seek the recusal of the federal judge. The Court recognized MAS’ right to continue to participate in the case without clarifying the scope of those rights. On November 27, 2017, the federal judge indicted four former federal government officials, alleging abuse of authority in connection with their actions and omissions related to the enforcement of Argentina’s national glacier legislation including the methodology used to complete the national inventory of glaciers, a portion of which was published on October 3, 2016, and also requiring the National Ministry of the Environment and Sustainable Development to determine if there has been any environmental damage to glaciers since the glacier law went into effect in light of his decision. On December 12, 2017, the National Ministry of the Environment and Sustainable Development clarified that it does not have jurisdiction to audit environmental damage to glaciers, as this is the responsibility of the Provincial authorities. On March 5, 2018, the Court of Appeals confirmed the indictment against the four former federal officials in relation to the Glacier Investigation. On August 6, 2018, the case related to the enforcement of the national glacier legislation was assigned to a federal trial judge. In total, six former federal officials were indicted under the Federal Investigation and the Glacier Investigation (one of whom has been indicted on two separate charges) and will face trial. In 2019, the former federal official indicted on separate charges under both the Federal Investigation and the Glacier Investigation passed away. As a result, the charges against him have been dropped. Oral arguments with respect to the charges for the remaining five former federal officials have been scheduled for February and March 2020, with a final decision expected by July 2020. No amounts have been recorded for any potential liability arising from these matters, as the Company cannot reasonably predict any potential losses. Veladero – September 2016 Release of Crushed Ore Saturated with Process Solution Temporary Suspension of Operations and Regulatory Infringement Proceeding On September 8, 2016, ice rolling down the slope of the leach pad at the Veladero mine damaged a pipe carrying process solution, causing some material to leave the leach pad. This material, primarily crushed ore saturated with process solution, was contained on the mine site and returned to the leach pad. Extensive water monitoring in the area conducted by MAS has confirmed that the incident did not result in any environmental impacts. A temporary suspension of operations at the Veladero mine was ordered by the San Juan Provincial mining authority and a San Juan Provincial court on September 15, 2016 and September 22, 2016, respectively, as a result of this incident. On October 4, 2016, following, among other matters, the completion of certain urgent works required by the San Juan Provincial mining authority and a judicial inspection of the mine, the San Juan Provincial court lifted the suspension of operations and ordered that mining activities be resumed. On September 14, 2016, the San Juan Provincial mining authority commenced an administrative proceeding in connection with this incident that included, in addition to the issue of the suspension order, an infringement proceeding against MAS. On December 2, 2016, the San Juan Provincial mining authority notified MAS of two charges under the infringement proceeding for alleged violations of the Mining Code. A new criminal judicial investigation has also been commenced by the Provincial prosecutor’s office in the same San Juan Provincial court that is hearing the Provincial Action. The court in this proceeding issued the orders suspending and resuming the operations at the Veladero mine described above. On September 14, 2017, the San Juan Provincial mining authority consolidated the administrative proceeding into a single proceeding against MAS encompassing both the September 2016 incident and the March 2017 incident described below (see “Veladero - March 2017 Release of Gold-bearing Process Solution” below). On December 27, 2017, MAS received notice of a resolution from the San Juan Provincial mining authority requiring payment of an administrative fine of approximately $5.6 million (calculated at the prevailing exchange rate on December 31, 2017) encompassing both the September 2016 incident and the March 2017 incident described below. On January 23, 2018, in accordance with local requirements, MAS paid the administrative fine and filed a request for reconsideration with the San Juan Provincial mining authority. On March 28, 2018, MAS was notified that the San Juan Provincial mining authority had rejected the request for reconsideration. A further appeal was filed on April 20, 2018 and will be heard and decided by the Governor of San Juan. Veladero – Cyanide Leaching Process Civil Action On December 15, 2016, MAS was served notice of a lawsuit by certain persons who claim to be living in Jachal, Argentina and to be affected by the Veladero mine and, in particular, the Valley Leach Facility (“VLF”). In the lawsuit, which was filed in the San Juan Provincial court, the plaintiffs have requested a court order that MAS cease leaching metals with cyanide solutions, mercury and other similar substances at the Veladero mine and replace that process with one that is free of hazardous substances, that MAS implement a closure and remediation plan for the VLF and surrounding areas, and create a committee to monitor this process. The lawsuit is proceeding as an ordinary civil action. MAS replied to the lawsuit on February 20, 2017. On March 31, 2017, the plaintiffs supplemented their original complaint to allege that the risk of environmental damage had increased as a result of the March 28, 2017 release of gold-bearing process solution incident described below (see “Veladero - March 2017 Release of Gold-bearing Process Solution” below) . The Company responded to the new allegations and intends to continue defending this matter vigorously. No amounts have been recorded for any potential liability or asset impairment under this matter, as the Company cannot reasonably predict the outcome. Veladero – March 2017 Release of Gold-bearing Process Solution Regulatory Infringement Proceeding and Temporary Suspension of Addition of Cyanide On March 28, 2017, the monitoring system at the Company’s Veladero mine detected a rupture of a pipe carrying gold-bearing process solution on the leach pad. This solution was contained within the operating site; no solution reached any diversion channels or watercourses. All affected soil was promptly excavated and placed on the leach pad. The Company notified regulatory authorities of the situation, and San Juan provincial authorities inspected the site on March 29, 2017. On March 29, 2017, the San Juan Provincial mining authority issued a violation notice against MAS in connection with the incident and ordered a temporary restriction on the addition of new cyanide to the leach pad until corrective actions on the system were completed. The mining authority lifted the suspension on June 15, 2017, following inspection of corrective actions. On March 30, 2017, the San Juan Mining Minister ordered the commencement of a regulatory infringement proceeding against MAS as well as a comprehensive evaluation of the mine’s operations to be conducted by representatives of the Company and the San Juan provincial authorities. The Company filed its defense to the regulatory infringement proceeding on April 5, 2017. On September 14, 2017, the San Juan Provincial mining authority consolidated this administrative proceeding into a single proceeding against MAS encompassing both the September 2016 incident described above and the March 2017 incident. On October 10, 2017, the San Juan Provincial mining authority notified MAS of two charges under the infringement proceeding for alleged violations of the Mining Code in connection with the March 2017 incident. On December 27, 2017, MAS received notice of a resolution from the San Juan Provincial mining authority requiring payment of an administrative fine of approximately $5.6 million (calculated at the prevailing exchange rate on December 31, 2017) encompassing both the September 2016 incident described above and the March 2017 incident. On January 23, 2018, in accordance with local requirements, MAS paid the administrative fine and filed a request for reconsideration with the San Juan Provincial mining authority. On March 28, 2018, MAS was notified that the San Juan Provincial mining authority had rejected the request for reconsideration. A further appeal will be heard and decided by the Governor of San Juan. Provincial Amparo Action On March 30, 2017, MAS was served notice of a

SIGNIFICANT ACCOUNTING POLICI_2

SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2019
Significant Accounting Policies [Abstract]
Statement of Compliance	Statement of Compliance These consolidated financial statements have been prepared in accordance with International Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standards Board (“IASB”) under the historical cost convention, as modified by revaluation of derivative contracts and certain financial assets. Accounting policies are consistently applied to all years presented, unless otherwise stated. These consolidated financial statements were approved for issuance by the Board of Directors on February 12, 2020.
Subsidiaries	Subsidiaries These consolidated financial statements include the accounts of Barrick and its subsidiaries. All intercompany balances, transactions, income and expenses, and profits or losses have been eliminated on consolidation. We consolidate subsidiaries where we have the ability to exercise control. Control of an investee is defined to exist when we are exposed to variable returns from our involvement with the investee and have the ability to affect those returns through our power over the investee. Specifically, we control an investee if, and only if, we have all of the following: power over the investee (i.e., existing rights that give us the current ability to direct the relevant activities of the investee); exposure, or rights, to variable returns from our involvement with the investee; and the ability to use our power over the investee to affect its returns. For non wholly-owned, controlled subsidiaries, the net assets attributable to outside equity shareholders are presented as “non-controlling interests” in the equity section of the consolidated balance sheet. Profit or loss for the period that is attributable to non-controlling interests is calculated based on the ownership of the minority shareholders in the subsidiary.
Joint Arrangements	Joint Arrangements A joint arrangement is defined as one over which two or more parties have joint control, which is the contractually agreed sharing of control over an arrangement. This exists only when the decisions about the relevant activities (being those that significantly affect the returns of the arrangement) require the unanimous consent of the parties sharing control. There are two types of joint arrangements: joint operations (“JO”) and joint ventures (“JV”). A JO is a joint arrangement whereby the parties that have joint control of the arrangement have rights to the assets and obligations for the liabilities, relating to the arrangement. In relation to our interests in joint operations, we recognize our share of any assets, liabilities, revenues and expenses of the JO. A JV is a joint arrangement whereby the parties that have joint control of the arrangement have rights to the net assets of the joint venture. Our investments in JVs are accounted for using the equity method. On acquisition, an equity method investment is initially recognized at cost. The carrying amount of equity method investments includes goodwill identified on acquisition, net of any accumulated impairment losses. The carrying amount is adjusted by our share of post-acquisition net income or loss; depreciation, amortization or impairment of the fair value adjustments made on the underlying balance sheet at the date of acquisition; dividends; cash contributions; and our share of post-acquisition movements in Other Comprehensive Income (“OCI”). If the carrying value in an equity method investment is reduced to zero, additional losses are not provided for, and a liability is not recognized, unless the Company has incurred legal or constructive obligations, or made payments on behalf of the equity method investment.
Business Combinations	Business Combinations On the acquisition of a business, the acquisition method of accounting is used, whereby the purchase consideration is allocated to the identifiable assets and liabilities on the basis of fair value at the date of acquisition. Provisional fair values allocated at a reporting date are finalized as soon as the relevant information is available, within a period not to exceed 12 months from the acquisition date with retroactive restatement of the impact of adjustments to those provisional fair values effective as at the acquisition date. Incremental costs related to acquisitions are expensed as incurred. When the cost of the acquisition exceeds the fair value of the identifiable net assets acquired, the difference is recorded as goodwill. If the fair value attributable to Barrick’s share of the identifiable net assets exceeds the cost of acquisition, the difference is recognized as a gain in the consolidated statement of income. Non-controlling interests represent the fair value of net assets in subsidiaries, as at the date of acquisition, that are not held by Barrick and are presented in the equity section of the consolidated balance sheet.
Non-current Assets and Disposal Groups Held-for-Sale and Discontinued Operations	d) Non-current Assets and Disposal Groups Held-for-Sale and Discontinued Operations Non-current assets and disposal groups are classified as assets held-for-sale (“HFS”) if it is highly probable that the value of these assets will be recovered primarily through sale rather than through continuing use. They are recorded at the lower of carrying amount and fair value less cost of disposal. Impairment losses on initial classification as HFS and subsequent gains and losses on remeasurement are recognized in the income statement. Once classified as HFS, property, plant and equipment are no longer amortized. The assets and liabilities are presented as HFS in the consolidated balance sheet when the sale is highly probable, the asset or disposal group is available for immediate sale in its present condition and management is committed to the sale, which should be expected to be completed within one year from the date of classification. A discontinued operation is a component of the Company that can be clearly distinguished from the rest of the Company and represents a major line of business or geographic area, and the value of this component is expected to be recovered primarily through sale rather than continuing use. Results of operations and any gain or loss from disposal are excluded from income before finance items and income taxes and are reported separately as income/loss from discontinued operations.
Foreign Currency Translation	Foreign Currency Translation The functional currency of the Company, for each subsidiary of the Company, and for joint arrangements and associates, is the currency of the primary economic environment in which it operates. The functional currency of all of our operations is the US dollar. We translate non-US dollar balances for these operations into US dollars as follows: • Property, plant and equipment (“PP&E”), intangible assets and equity method investments using the rates at the time of acquisition; • Fair value through other comprehensive income (“FVOCI”) equity investments using the closing exchange rate as at the balance sheet date with translation gains and losses permanently recorded in Other Comprehensive Income (“OCI”); • Deferred tax assets and liabilities using the closing exchange rate as at the balance sheet date with translation gains and losses recorded in income tax expense; • Other assets and liabilities using the closing exchange rate as at the balance sheet date with translation gains and losses recorded in other income/expense; and • Income and expenses using the average exchange rate for the period, except for expenses that relate to non-monetary assets and liabilities measured at historical rates, which are translated using the same historical rate as the associated non-monetary assets and liabilities.
Revenue Recognition	Revenue Recognition We record revenue when evidence exists that all of the following criteria are met: • The significant risks and rewards of ownership of the product have been transferred to the buyer; • Neither continuing managerial involvement to the degree usually associated with ownership, nor effective control over the goods sold, has been retained; • The amount of revenue can be reliably measured; • It is probable that the economic benefits associated with the sale will flow to us; and • The costs incurred or to be incurred in respect of the sale can be reliably measured. These conditions are generally satisfied when title passes to the customer. Gold Bullion Sales Gold bullion is sold primarily in the London spot market. The sale price is fixed on the date of sale based on the gold spot price. Generally, we record revenue from gold bullion sales at the time of physical delivery, which is also the date that title to the gold passes. Concentrate Sales Under the terms of concentrate sales contracts with independent smelting companies, gold and copper sales prices are provisionally set on a specified future date after shipment based on market prices. We record revenues under these contracts at the time of shipment, which is also when the risk and rewards of ownership pass to the smelting companies, using forward market gold and copper prices on the expected date that final sales prices will be determined. Variations between the price recorded at the shipment date and the actual final price set under the smelting contracts are caused by changes in market gold and copper prices, which result in the existence of an embedded derivative in accounts receivable. The embedded derivative is recorded at fair value each period until final settlement occurs, with changes in fair value classified as provisional price adjustments and included in revenue in the consolidated statement of income and presented separately in note 6 of these consolidated financial statements. Streaming Arrangements As the deferred revenue on streaming arrangements is considered variable consideration, an adjustment is made to the transaction price per unit each time there is a change in the underlying production profile of a mine (typically in the fourth quarter of each year). The change in the transaction price per unit results in a cumulative catch-up adjustment to revenue in the period in which the change is made, reflecting the new production profile expected to be delivered under the streaming agreement. A corresponding cumulative catch-up adjustment is made to accretion expense, reflecting the impact of the change in the deferred revenue balance.
Exploration and Evaluation	Exploration and Evaluation Exploration expenditures are the costs incurred in the initial search for mineral deposits with economic potential or in the process of obtaining more information about existing mineral deposits. Exploration expenditures typically include costs associated with prospecting, sampling, mapping, diamond drilling and other work involved in searching for ore. Evaluation expenditures are the costs incurred to establish the technical and commercial viability of developing mineral deposits identified through exploration activities or by acquisition. Evaluation expenditures include the cost of (i) establishing the volume and grade of deposits through drilling of core samples, trenching and sampling activities in an ore body that is classified as either a mineral resource or a proven and probable reserve; (ii) determining the optimal methods of extraction and metallurgical and treatment processes; (iii) studies related to surveying, transportation and infrastructure requirements; (iv) permitting activities; and (v) economic evaluations to determine whether development of the mineralized material is commercially justified, including scoping, prefeasibility and final feasibility studies. Exploration and evaluation expenditures are expensed as incurred unless management determines that probable future economic benefits will be generated as a result of the expenditures. Once the technical feasibility and commercial viability of a program or project has been demonstrated with a prefeasibility study, and we have recognized reserves in accordance with the Canadian Securities Administrators’ National Instrument 43-101, we account for future expenditures incurred in the development of that program or project in accordance with our policy for Property, Plant and Equipment, as described in note 2n.
Production Stage	Production Stage A mine that is under construction is determined to enter the production stage when the project is in the location and condition necessary for it to be capable of operating in the manner intended by management. We use the following factors to assess whether these criteria have been met: (1) the level of capital expenditures compared to construction cost estimates; (2) the completion of a reasonable period of testing of mine plant and equipment; (3) the ability to produce minerals in saleable form (within specifications); and (4) the ability to sustain ongoing production of minerals. When a mine construction project moves into the production stage, the capitalization of certain mine construction costs ceases and costs are either capitalized to inventory or expensed, except for capitalizable costs related to property, plant and equipment additions or improvements, open pit stripping activities that provide a future benefit, underground mine development or expenditures that meet the criteria for capitalization in accordance with IAS 16 Property, Plant and Equipment. Construction-in-Progress Assets under construction are capitalized as construction-in-progress until the asset is available for use. The cost of construction-in-progress comprises its purchase price and any costs directly attributable to bringing it into working condition for its intended use. Construction-in-progress amounts related to development projects are included in the carrying amount of the development project. Construction-in-progress amounts incurred at operating mines are presented as a separate asset within PP&E. Construction-in-progress also includes deposits on long lead items. Construction-in-progress is not depreciated. Depreciation commences once the asset is complete and available for use.
Earnings per Share	Earnings per Share Earnings per share is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding for the period. Diluted earnings per share reflects the potential dilution that could occur if additional common shares are assumed to be issued under securities that entitle their holders to obtain common shares in the future. For stock options, the number of additional shares for inclusion in diluted earnings per share calculations is determined using the treasury stock method. Under this method, stock options that have an exercise price less than the average market price of our common shares are assumed to be exercised and the proceeds are used to repurchase common shares at the average market price for the period. The incremental number of common shares issued under stock options and repurchased from proceeds is included in the calculation of diluted earnings per share.
Taxation	Taxation Current tax for each taxable entity is based on the local taxable income at the local statutory tax rate enacted or substantively enacted at the balance sheet date and includes adjustments to tax payable or recoverable in respect of previous periods. Deferred tax is recognized using the balance sheet method in respect of all temporary differences between the tax bases of assets and liabilities, and their carrying amounts for financial reporting purposes, except as indicated below. Deferred income tax liabilities are recognized for all taxable temporary differences, except: • Where the deferred income tax liability arises from the initial recognition of goodwill, or the initial recognition of an asset or liability in an acquisition that is not a business combination and, at the time of the acquisition, affects neither the accounting profit nor taxable profit or loss; and • In respect of taxable temporary differences associated with investments in subsidiaries and interests in joint arrangements, where the timing of the reversal of the temporary differences can be controlled and it is probable that the temporary differences will not reverse in the foreseeable future. Deferred income tax assets are recognized for all deductible temporary differences and the carry forward of unused tax assets and unused tax losses, to the extent that it is probable that taxable profit will be available against which the deductible temporary differences and the carry forward of unused tax assets and unused tax losses can be utilized, except: • Where the deferred income tax asset relating to the deductible temporary difference arises from the initial recognition of an asset or liability in an acquisition that is not a business combination and, at the time of the acquisition, affects neither the accounting profit nor taxable profit or loss; and • In respect of deductible temporary differences associated with investments in subsidiaries and interests in joint arrangements, deferred tax assets are recognized only to the extent that it is probable that the temporary differences will reverse in the foreseeable future and taxable profit will be available against which the temporary differences can be utilized. The carrying amount of deferred income tax assets is reviewed at each balance sheet date and reduced to the extent that it is no longer probable that sufficient taxable profit will be available to allow all or part of the deferred income tax asset to be utilized. To the extent that an asset not previously recognized fulfills the criteria for recognition, a deferred income tax asset is recorded. Deferred tax is measured on an undiscounted basis at the tax rates that are expected to apply in the periods in which the asset is realized or the liability is settled, based on tax rates and tax laws enacted or substantively enacted at the balance sheet date. Current and deferred tax relating to items recognized directly in equity are recognized in equity and not in the income statement. Royalties and Special Mining Taxes Income tax expense includes the cost of royalties and special mining taxes payable to governments that are calculated based on a percentage of taxable profit whereby taxable profit represents net income adjusted for certain items defined in the applicable legislation. Indirect Taxes Indirect tax recoverable is recorded at its undiscounted amount, and is disclosed as non-current if not expected to be recovered within twelve months.
Disclosure of income tax [text block]	Current tax for each taxable entity is based on the local taxable income at the local statutory tax rate enacted or substantively enacted at the balance sheet date and includes adjustments to tax payable or recoverable in respect of previous periods. INCOME TAX EXPENSE For the years ended December 31 2019 2018 Tax on profit Current tax Charge for the year $685 $423 Adjustment in respect of prior years 25 45 $710 $468 Deferred tax Origination and reversal of temporary differences in the current year $1,112 $821 Adjustment in respect of prior years (39 ) (91 ) $1,073 $730 Income tax expense $1,783 $1,198 Tax expense related to continuing operations Current Canada $5 $— International 705 468 $710 $468 Deferred Canada $— $628 International 1,073 102 $1,073 $730 Income tax expense $1,783 $1,198 Reconciliation to Canadian Statutory Rate For the years ended December 31 2019 2018 At 26.5% statutory rate $1,684 ($63 ) Increase (decrease) due to: Allowances and special tax deductions 1 (129 ) (59 ) Impact of foreign tax rates 2 (264 ) (4 ) Expenses not tax deductible 78 74 Impairment charges not recognized in deferred tax assets 45 168 Goodwill impairment charges not tax deductible — 54 Net currency translation losses on deferred tax balances 43 41 Tax impact from pass-through entities and equity accounted investments (140 ) (15 ) Current year tax losses not recognized in deferred tax assets 8 100 Sale of 50% interest in Kalgoorlie 12 — De-recognition of deferred tax assets 4 814 United States adjustment to one-time toll charge — (49 ) Adjustments in respect of prior years (13 ) 3 Increase to income tax related contingent liabilities 21 — Impact of tax rate changes (35 ) — Dominican Republic tax audit — 42 United States withholding taxes 30 (107 ) Other withholding taxes 24 14 Mining taxes 412 184 Other items 3 1 Income tax expense $1,783 $1,198 1 We are able to claim certain allowances and tax deductions unique to extractive industries that result in a lower effective tax rate. 2 We operate in multiple foreign tax jurisdictions that have tax rates different than the Canadian statutory rate. Currency Translation Deferred tax balances are subject to remeasurement for changes in currency exchange rates each period. This is required in countries where tax is paid in local currency and accounts are prepared in local GAAP. The most significant balances are Argentine deferred tax liabilities. In 2019 and 2018 , tax expense of $75 million and $41 million , respectively, primarily arose from translation losses due to the weakening of the Argentine peso against the US dollar. These translation losses are included within deferred tax expense (recovery). In 2019, deferred tax balances for legacy Randgold assets in Mali and Côte d’Ivoire required remeasurement at year end. De-recognition of Deferred Tax Assets In the fourth quarter of 2018, we recorded a deferred tax expense of $673 million related to de-recognition of the deferred tax asset in Canada, and a deferred tax expense of $ 141 million related to de-recognition of the deferred tax asset in Peru. The de-recognition of the deferred tax asset in Canada follows the merger with Randgold and management’s focus on growing the business globally, particularly on assets outside of Canada. This required us to reassess the level of repatriated earnings expected in Canada, and Canadian income thereon to support the deferred tax asset. The de-recognition of the deferred tax asset does not constrain our ability to use Canadian carry forward tax losses against future income in Canada; however, we did not expect to be able to use these losses in the foreseeable future as a result of the change in strategy in the fourth quarter of 2018. The de-recognition of the deferred tax asset in Peru in the fourth quarter of 2018 follows management’s review of expected future earnings. The associated impairment of inventory at Lagunas Norte was also driven by the fourth quarter of 2018 change in our expected approach to financing future reclamation activities in Peru. Based on these reviews in Canada and Peru, it was determined that the realizability of these deferred tax assets was no longer probable. United States Withholding Taxes In the fourth quarter of 2018, primarily due to restructuring associated with the merger with Randgold, we concluded that going forward, we would reinvest our future undistributed earnings of our United States subsidiaries in the foreseeable future. As a result of our reassessment, we recorded a deferred tax recovery of $107 million. In 2019, we reassessed our intentions on the current and future undistributed earnings of our United States subsidiaries due to the formation of Nevada Gold Mines. Based on the free cash flow that we expect Nevada Gold Mines to generate, together with other factors, we concluded that it was no longer our intent to indefinitely reinvest our current and future undistributed earnings of our United States subsidiaries. Therefore in the fourth quarter of 2019, we recognized an increase in our income tax provisions in the amount of $30 million , representing withholding tax on undistributed United States earnings. Framework for former Acacia Mining Operations in Tanzania On October 20, 2019, Barrick announced that it had reached an agreement with the GoT to settle all disputes between the GoT and the mining companies formerly operated by Acacia but now managed by Barrick. The final agreements were submitted to the Tanzanian Attorney General for review and legalization. On January 24, 2020, Barrick announced that the Company had ratified the creation of Twiga at a signing ceremony with the President of Tanzania, formalizing the establishment of a joint venture between Barrick and the GoT and resolution of all outstanding disputes between Barrick and the GoT , including the lifting of the previous concentrate export ban, effective immediately The terms of the signed agreement are consistent with those previously announced, including the payment of $300 million to settle all outstanding tax and other disputes (the “Settlement Payment”); the lifting of the concentrate export ban; the sharing of future economic benefits from the mines on a 50 /50 basis; and a dispute resolution mechanism that provides for binding international arbitration. The 50 /50 division of economic benefits will be maintained through an annual true-up mechanism, which will not account for the Settlement Payment. The Settlement Payment will be paid in installments, with an initial payment of $100 million to the GoT following the resumption of mineral concentrate exports. Five subsequent annual payments of $40 million each will be made, starting on the first anniversary of the fulfillment of all conditions of the signed agreement, subject to certain cash flow conditions. A tax provision of $128 million had been recorded prior to December 31, 2016 in respect of tax disputes related to Acacia. Of this amount, $70 million was recorded in 2016. In the third quarter of 2017, an additional amount of $172 million was recorded as current tax expense. See note 36 for further information with respect to these matters. 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 resulting in a total of $ 216 million recognized in Other Income in 2019 (refer to note 9).
Deferred Taxes	Deferred tax is recognized using the balance sheet method in respect of all temporary differences between the tax bases of assets and liabilities, and their carrying amounts for financial reporting purposes, except as indicated below. Deferred income tax liabilities are recognized for all taxable temporary differences, except: • Where the deferred income tax liability arises from the initial recognition of goodwill, or the initial recognition of an asset or liability in an acquisition that is not a business combination and, at the time of the acquisition, affects neither the accounting profit nor taxable profit or loss; and • In respect of taxable temporary differences associated with investments in subsidiaries and interests in joint arrangements, where the timing of the reversal of the temporary differences can be controlled and it is probable that the temporary differences will not reverse in the foreseeable future. Deferred income tax assets are recognized for all deductible temporary differences and the carry forward of unused tax assets and unused tax losses, to the extent that it is probable that taxable profit will be available against which the deductible temporary differences and the carry forward of unused tax assets and unused tax losses can be utilized, except: • Where the deferred income tax asset relating to the deductible temporary difference arises from the initial recognition of an asset or liability in an acquisition that is not a business combination and, at the time of the acquisition, affects neither the accounting profit nor taxable profit or loss; and • In respect of deductible temporary differences associated with investments in subsidiaries and interests in joint arrangements, deferred tax assets are recognized only to the extent that it is probable that the temporary differences will reverse in the foreseeable future and taxable profit will be available against which the temporary differences can be utilized. The carrying amount of deferred income tax assets is reviewed at each balance sheet date and reduced to the extent that it is no longer probable that sufficient taxable profit will be available to allow all or part of the deferred income tax asset to be utilized. To the extent that an asset not previously recognized fulfills the criteria for recognition, a deferred income tax asset is recorded. Deferred tax is measured on an undiscounted basis at the tax rates that are expected to apply in the periods in which the asset is realized or the liability is settled, based on tax rates and tax laws enacted or substantively enacted at the balance sheet date.
Indirect Taxes	Current and deferred tax relating to items recognized directly in equity are recognized in equity and not in the income statement. Royalties and Special Mining Taxes Income tax expense includes the cost of royalties and special mining taxes payable to governments that are calculated based on a percentage of taxable profit whereby taxable profit represents net income adjusted for certain items defined in the applicable legislation. Indirect Taxes Indirect tax recoverable is recorded at its undiscounted amount, and is disclosed as non-current if not expected to be recovered within twelve months.
Other Investments	Other Investments Investments in publicly quoted equity securities that are neither subsidiaries nor associates are categorized as FVOCI pursuant to the irrevocable election available in IFRS 9 for these instruments. FVOCI equity investments (referred to as “other investments”) are recorded at fair value with all realized and unrealized gains and losses recorded permanently in OCI.
Inventory	Inventory Material extracted from our mines is classified as either ore or waste. Ore represents material that, at the time of extraction, we expect to process into a saleable form and sell at a profit. Raw materials are comprised of both ore in stockpiles and ore on leach pads as processing is required to extract benefit from the ore. Ore is accumulated in stockpiles that are subsequently processed into gold/copper in a saleable form. The recovery of gold and copper from certain oxide ores is achieved through the heap leaching process. Work in process represents gold/copper in the processing circuit that has not completed the production process, and is not yet in a saleable form. Finished goods inventory represents gold/copper in saleable form. Metal inventories are valued at the lower of cost and net realizable value. Cost is determined on a weighted average basis and includes all costs incurred, based on a normal production capacity, in bringing each product to its present location and condition. Cost of inventories comprises direct labor, materials and contractor expenses, including non-capitalized stripping costs; depreciation on PP&E including capitalized stripping costs; and an allocation of general and administrative costs. As ore is removed for processing, costs are removed based on the average cost per ounce/pound in the stockpile. Net realizable value is determined with reference to relevant market prices less applicable variable selling and processing costs. Mine operating supplies represent commodity consumables and other raw materials used in the production process, as well as spare parts and other maintenance supplies that are not classified as capital items. Provisions are recorded to reduce mine operating supplies to net realizable value, which is generally calculated by reference to its salvage or scrap value, when it is determined that the supplies are obsolete. Provisions are reversed to reflect subsequent recoveries in net realizable value where the inventory is still on hand.
Royalties	Royalties Certain of our properties are subject to royalty arrangements based on mineral production at the properties. The primary type of royalty is a net smelter return (NSR) royalty. Under this type of royalty we pay the holder an amount calculated as the royalty percentage multiplied by the value of gold production at market gold prices less third-party smelting, refining and transportation costs. Royalty expense is recorded on completion of the production or sales process in cost of sales. Other types of royalties include: • Net profits interest (NPI) royalty to other than a government, • Modified net smelter return (NSR) royalty, • Net smelter return sliding scale (NSRSS) royalty, • Gross proceeds sliding scale (GPSS) royalty, • Gross smelter return (GSR) royalty, • Net value (NV) royalty, • Land tenement (LT) royalty, and a • Gold revenue royalty.
Property, Plant and Equipment	Property, Plant and Equipment Estimated useful lives of Major Asset Categories Buildings, plant and equipment 1 – 28 years Underground mobile equipment 5 - 7 years Light vehicles and other mobile equipment 1 - 7 years Furniture, computer and office equipment 1 - 7 years Buildings, Plant and Equipment At acquisition, we record buildings, plant and equipment at cost, including all expenditures incurred to prepare an asset for its intended use. These expenditures consist of: the purchase price; brokers’ commissions; and installation costs including architectural, design and engineering fees, legal fees, survey costs, site preparation costs, freight charges, transportation insurance costs, duties, testing and preparation charges. We capitalize costs that meet the asset recognition criteria. Costs incurred that do not extend the productive capacity or useful economic life of an asset are considered repairs and maintenance expense and are accounted for as a cost of the inventory produced in the period. Buildings, plant and equipment are depreciated on a straight-line basis over their expected useful life, which commences when the assets are considered available for use. Once buildings, plant and equipment are considered available for use they are measured at cost less accumulated depreciation and applicable impairment losses. Depreciation on equipment utilized in the development of assets, including open pit and underground mine development, is recapitalized as development costs attributable to the related asset.
Mineral Properties	Mineral Properties Mineral properties consist of: the fair value attributable to mineral reserves and resources acquired in a business combination or asset acquisition; underground mine development costs; open pit mine development costs; capitalized exploration and evaluation costs; and capitalized interest. In addition, we incur project costs which are generally capitalized when the expenditures result in a future benefit. i) Acquired Mining Properties On acquisition of a mining property, we prepare an estimate of the fair value attributable to the proven and probable mineral reserves, mineral resources and exploration potential attributable to the property. The estimated fair value attributable to the mineral reserves and the portion of mineral resources considered to be probable of economic extraction at the time of the acquisition is depreciated on a units of production (“UOP”) basis whereby the denominator is the proven and probable reserves and the portion of mineral resources considered to be probable of economic extraction based on the current life of mine (“LOM”) plan that benefit from the development and are considered probable of economic extraction. The estimated fair value attributable to mineral resources that are not considered to be probable of economic extraction at the time of the acquisition is not subject to depreciation until the resources become probable of economic extraction in the future. The estimated fair value attributable to exploration licenses is recorded as an intangible asset and is not subject to depreciation until the property enters production. ii) Underground Mine Development Costs At our underground mines, we incur development costs to build new shafts, drifts and ramps that will enable us to physically access ore underground. The time over which we will continue to incur these costs depends on the mine life. These underground development costs are capitalized as incurred. Capitalized underground development costs are depreciated on a UOP basis, whereby the denominator is the estimated ounces/pounds of gold/copper in proven and probable reserves and the portion of resources considered probable of economic extraction based on the current LOM plan that benefit from the development and are considered probable of economic extraction. iii) Open Pit Mine Development Costs In open pit mining operations, it is necessary to remove overburden and other waste materials to access ore from which minerals can be extracted economically. The process of mining overburden and waste materials is referred to as stripping. Stripping costs incurred in order to provide initial access to the ore body (referred to as pre-production stripping) are capitalized as open pit mine development costs. Pre-production stripping costs are capitalized until an “other than de minimis” level of mineral is extracted, after which time such costs are either capitalized to inventory or, if it qualifies as an open pit stripping activity that provides a future benefit, to PP&E. We consider various relevant criteria to assess when an “other than de minimis” level of mineral is produced. Some of the criteria considered would include, but are not limited to, the following: (1) the amount of minerals mined versus total ounces in LOM ore; (2) the amount of ore tonnes mined versus total LOM expected ore tonnes mined; (3) the current stripping ratio versus the LOM strip ratio; and (4) the ore grade versus the LOM grade. Stripping costs incurred during the production stage of a pit are accounted for as costs of the inventory produced during the period that the stripping costs are incurred, unless these costs are expected to provide a future economic benefit to an identifiable component of the ore body. Components of the ore body are based on the distinct development phases identified by the mine planning engineers when determining the optimal development plan for the open pit. Production phase stripping costs generate a future economic benefit when the related stripping activity: (1) improves access to a component of the ore body to be mined in the future; (2) increases the fair value of the mine (or pit) as access to future mineral reserves becomes less costly; and (3) increases the productive capacity or extends the productive life of the mine (or pit). Production phase stripping costs that are expected to generate a future economic benefit are capitalized as open pit mine development costs. Capitalized open pit mine development costs are depreciated on a UOP basis whereby the denominator is the estimated ounces/pounds of gold/copper in proven and probable reserves and the portion of resources considered probable of economic extraction based on the current LOM plan that benefit from the development and are considered probable of economic extraction.
Construction in Progress	Production Stage A mine that is under construction is determined to enter the production stage when the project is in the location and condition necessary for it to be capable of operating in the manner intended by management. We use the following factors to assess whether these criteria have been met: (1) the level of capital expenditures compared to construction cost estimates; (2) the completion of a reasonable period of testing of mine plant and equipment; (3) the ability to produce minerals in saleable form (within specifications); and (4) the ability to sustain ongoing production of minerals. When a mine construction project moves into the production stage, the capitalization of certain mine construction costs ceases and costs are either capitalized to inventory or expensed, except for capitalizable costs related to property, plant and equipment additions or improvements, open pit stripping activities that provide a future benefit, underground mine development or expenditures that meet the criteria for capitalization in accordance with IAS 16 Property, Plant and Equipment. Construction-in-Progress Assets under construction are capitalized as construction-in-progress until the asset is available for use. The cost of construction-in-progress comprises its purchase price and any costs directly attributable to bringing it into working condition for its intended use. Construction-in-progress amounts related to development projects are included in the carrying amount of the development project. Construction-in-progress amounts incurred at operating mines are presented as a separate asset within PP&E. Construction-in-progress also includes deposits on long lead items. Construction-in-progress is not depreciated. Depreciation commences once the asset is complete and available for use.
Leasing Arrangements	Leasing Arrangements Leases are recognized as a right-of-use asset and a corresponding liability at the date at which the leased asset is available for use by the Company. Each lease payment is allocated between the liability and finance cost. The finance cost is charged to profit or loss over the lease period so as to produce a constant periodic rate of interest on the remaining balance of the liability for each period. The right-of-use asset is depreciated over the shorter of the asset's useful life and the lease term on a straight-line basis. Assets and liabilities arising from a lease are initially measured on a present value basis. Lease liabilities include the net present value of the following lease payments: • fixed payments (including in-substance fixed payments), less any lease incentives receivable; • variable lease payments that are based on an index or a rate; • amounts expected to be payable by the lessee under residual value guarantees; • the exercise price of a purchase option if the lessee is reasonably certain to exercise that option; and • payments of penalties for terminating the lease, if the lease term reflects the lessee exercising that option. The lease payments are discounted using the interest rate implicit in the lease. If that rate cannot be determined, the lessee’s incremental borrowing rate is used, being the rate that the lessee would have to pay to borrow the funds necessary to obtain an asset of similar value in a similar economic environment with similar terms and conditions. Right-of-use assets are measured at cost comprising the following: • the amount of the initial measurement of the lease liability; • any lease payments made at or before the commencement date less any lease incentives received; • any initial direct costs; and • restoration costs.
Capitalized Interest	Capitalized Interest We capitalize interest costs for qualifying assets. Qualifying assets are assets that require a significant amount of time to prepare for their intended use, including projects that are in the exploration and evaluation, development or construction stages. Qualifying assets also include significant expansion projects at our operating mines. Capitalized interest costs are considered an element of the cost of the qualifying asset which is determined based on gross expenditures incurred on an asset. Capitalization ceases when the asset is substantially complete or if active development is suspended or ceases. Where the funds used to finance a qualifying asset form part of general borrowings, the amount capitalized is calculated using a weighted average of rates applicable to the relevant borrowings during the period. Where funds borrowed are directly attributable to a qualifying asset, the amount capitalized represents the borrowing costs specific to those borrowings. Where surplus funds available out of money borrowed specifically to finance a project are temporarily invested, the total capitalized interest is reduced by income generated from short-term investments of such funds.
Insurance	Insurance We record losses relating to insurable events as they occur. Proceeds receivable from insurance coverage are recorded at such time as receipt is receivable or virtually certain and the amount receivable is fixed or determinable. For business interruption insurance the amount recoverable is only recognized when receipt is virtually certain, as supported by notification of a minimum or proposed settlement amount from the insurance adjuster.
Impairment (and Reversals of Impairment) of Non-Current Assets	Impairment (and Reversals of Impairment) of Non-Current Assets We review and test the carrying amounts of PP&E and intangible assets with finite lives when an indicator of impairment is considered to exist. Impairment assessments on PP&E and intangible assets are conducted at the level of the cash generating unit (“CGU”), which is the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and includes most liabilities specific to the CGU. For operating mines and projects, the individual mine/project represents a CGU for impairment testing. The recoverable amount of a CGU is the higher of Value in Use (“VIU”) and Fair Value Less Costs of Disposal (“FVLCD”). We have determined that the FVLCD is greater than the VIU amounts and is therefore used as the recoverable amount for impairment testing purposes. An impairment loss is recognized for any excess of the carrying amount of a CGU over its recoverable amount where both the recoverable amount and carrying value include the associated other assets and liabilities, including taxes where applicable, of the CGU. Where it is not appropriate to allocate the loss to a separate asset, an impairment loss related to a CGU is allocated to the carrying amount of the assets of the CGU on a pro rata basis based on the carrying amount of its non-monetary assets. Impairment Reversal An assessment is made at each reporting date to determine whether there is an indication that previously recognized impairment losses may no longer exist or may have decreased. A previously recognized impairment loss is reversed only if there has been a change in the assumptions used to determine the CGU’s recoverable amount since the last impairment loss was recognized. This reversal is recognized in the consolidated statements of income and is limited to the carrying value that would have been determined, net of any depreciation where applicable, had no impairment charge been recognized in prior years. When an impairment reversal is undertaken, the recoverable amount is assessed by reference to the higher of VIU and FVLCD. We have determined that the FVLCD is greater than the VIU amounts and is therefore used as the recoverable amount for impairment testing purposes.
Intangible Assets	Intangible Assets Intangible assets acquired by way of an asset acquisition or business combination are recognized if the asset is separable or arises from contractual or legal rights and the fair value can be measured reliably on initial recognition. On acquisition of a mineral property in the exploration stage, we prepare an estimate of the fair value attributable to the exploration licenses acquired, including the fair value attributable to mineral resources, if any, of that property. The fair value of the exploration license is recorded as an intangible asset (acquired exploration potential) as at the date of acquisition. When an exploration stage property moves into development, the acquired exploration potential attributable to that property is transferred to mining interests within PP&E. We also have water rights associated with our mineral properties. Upon acquisition, they are measured at initial cost and are depreciated when they are being used. They are also subject to impairment testing when an indicator of impairment is considered to exist.
Goodwill	Goodwill Under the acquisition method of accounting, the costs of business combinations are allocated to the assets acquired and liabilities assumed based on the estimated fair value at the date of acquisition. The excess of the fair value of consideration paid over the fair value of the identifiable net assets acquired is recorded as goodwill. Goodwill is not amortized; instead it is tested for impairment in the fourth quarter and also when there is an indicator of impairment. At the date of acquisition, goodwill is assigned to the CGU or group of CGUs that is expected to benefit from the synergies of the business combination. For the purposes of impairment testing, goodwill is allocated to the Company’s operating segments, which are our individual minesites, and corresponds to the level at which goodwill is internally monitored by the Chief Operating Decision Maker (“CODM”). The recoverable amount of an operating segment is the higher of VIU and FVLCD. A goodwill impairment is recognized for any excess of the carrying amount of the operating segment over its recoverable amount. Goodwill impairment charges are not reversible.
Debt	Debt Debt is recognized initially at fair value, net of financing costs incurred, and subsequently measured at amortized cost. Any difference between the amounts originally received and the redemption value of the debt is recognized in the consolidated statements of income over the period to maturity using the effective interest method.
Derivative Instruments and Hedge Accounting	Derivative Instruments and Hedge Accounting Derivative Instruments Derivative instruments are recorded at fair value on the consolidated balance sheet, classified based on contractual maturity. Derivative instruments are classified as either hedges of the fair value of recognized assets or liabilities or of firm commitments (“fair value hedges”), hedges of highly probable forecasted transactions (“cash flow hedges”) or non-hedge derivatives. Derivatives designated as either a fair value or cash flow hedge that are expected to be highly effective in achieving offsetting changes in fair value or cash flows are assessed on an ongoing basis to determine that they actually have been highly effective throughout the financial reporting periods for which they were designated. Derivative assets and derivative liabilities are shown separately in the balance sheet unless there is a legal right to offset and intent to settle on a net basis. Fair Value Hedges Changes in the fair value of derivatives that are designated and qualify as fair value hedges are recorded in the consolidated statements of income, together with any changes in the fair value of the hedged asset or liability or firm commitment that is attributable to the hedged risk. Cash Flow Hedges The effective portion of changes in the fair value of derivatives that are designated and qualify as cash flow hedges is recognized in equity. The gain or loss relating to the ineffective portion is recognized in the consolidated statements of income. Amounts accumulated in equity are transferred to the consolidated statements of income in the period when the forecasted transaction impacts earnings. When the forecasted transaction that is hedged results in the recognition of a non-financial asset or a non-financial liability, the gains and losses previously deferred in equity are transferred from equity and included in the measurement of the initial carrying amount of the asset or liability. When a derivative designated as a cash flow hedge expires or is sold and the forecasted transaction is still expected to occur, any cumulative gain or loss relating to the derivative that is recorded in equity at that time remains in equity and is recognized in the consolidated statements of income when the forecasted transaction occurs. When a forecasted transaction is no longer expected to occur, the cumulative gain or loss that was recorded in equity is immediately transferred to the consolidated statements of income. Non-Hedge Derivatives Derivative instruments that do not qualify as either fair value or cash flow hedges are recorded at their fair value at the balance sheet date, with changes in fair value recognized in the consolidated statements of income.
Embedded Derivatives	Embedded Derivatives Derivatives embedded in other financial instruments or executory contracts are accounted for as separate derivatives when their risks and characteristics are not closely related to their host financial instrument or contract. In some cases, the embedded derivatives may be designated as hedges and are accounted for as described above.
Environmental Rehabilitation Provision	Environmental Rehabilitation Provision Mining, extraction and processing activities normally give rise to obligations for environmental rehabilitation. Rehabilitation work can include facility decommissioning and dismantling; removal or treatment of waste materials; site and land rehabilitation, including compliance with and monitoring of environmental regulations; security and other site-related costs required to perform the rehabilitation work; and operation of equipment designed to reduce or eliminate environmental effects. The extent of work required and the associated costs are dependent on the requirements of relevant authorities and our environmental policies. Routine operating costs that may impact the ultimate closure and rehabilitation activities, such as waste material handling conducted as an integral part of a mining or production process, are not included in the provision. Abnormal costs arising from unforeseen circumstances, such as the contamination caused by unplanned discharges, are recognized as an expense and liability when the event that gives rise to an obligation occurs and reliable estimates of the required rehabilitation costs can be made. Provisions for the cost of each rehabilitation program are normally recognized at the time that an environmental disturbance occurs or a new legal or constructive obligation is determined. When the extent of disturbance increases over the life of an operation, the provision is increased accordingly. The major parts of the carrying amount of provisions relate to closure/rehabilitation of tailings facilities, heap leach pads and waste dumps; demolition of buildings/mine facilities; ongoing water treatment; and ongoing care and maintenance and security of closed mines. Costs included in the provision encompass all closure and rehabilitation activity expected to occur progressively over the life of the operation at the time of closure and post-closure in connection with disturbances as at the reporting date. Estimated costs included in the determination of the provision reflect the risks and probabilities of alternative estimates of cash flows required to settle the obligation at each particular operation. The expected rehabilitation costs are estimated based on the cost of external contractors performing the work or the cost of performing the work internally depending on management’s intention. The timing of the actual rehabilitation expenditure is dependent upon a number of factors such as the life and nature of the asset, the operating license conditions and the environment in which the mine operates. Expenditures may occur before and after closure and can continue for an extended period of time depending on rehabilitation requirements. Rehabilitation provisions are measured at the expected value of future cash flows, which exclude the effect of inflation, discounted to their present value using a current US dollar real risk-free pre-tax discount rate. The unwinding of the discount, referred to as accretion expense, is included in finance costs and results in an increase in the amount of the provision. Provisions are updated each reporting period for changes to expected cash flows and for the effect of changes in the discount rate, and the change in estimate is added or deducted from the related asset and depreciated over the expected economic life of the operation to which it relates. Significant judgments and estimates are involved in forming expectations of future activities, the amount and timing of the associated cash flows and the period over which we estimate those cash flows. Those expectations are formed based on existing environmental and regulatory requirements or, if more stringent, our environmental policies which give rise to a constructive obligation. When provisions for closure and rehabilitation are initially recognized, the corresponding cost is capitalized as an asset, representing part of the cost of acquiring the future economic benefits of the operation. The capitalized cost of closure and rehabilitation activities is recognized in PP&E and depreciated over the expected economic life of the operation to which it relates. Adjustments to the estimated amount and timing of future closure and rehabilitation cash flows are a normal occurrence in light of the significant judgments and estimates involved. The principal factors that can cause expected cash flows to change are: the construction of new processing facilities; changes in the quantities of material in reserves and resources with a corresponding change in the life of mine plan; changing ore characteristics that impact required environmental protection measures and related costs; changes in water quality that impact the extent of water treatment required; changes in discount rates; changes in foreign exchange rates; changes in Barrick’s closure policies; and changes in laws and regulations governing the protection of the environment. Rehabilitation provisions are adjusted as a result of changes in estimates and assumptions. Those adjustments are accounted for as a change in the corresponding cost of the related assets, including the related mineral property, except where a reduction in the provision is greater than the remaining net book value of the related assets, in which case the value is reduced to nil and the remaining adjustment is recognized in the consolidated statements of income. In the case of closed sites, changes in estimates and assumptions are recognized immediately in the consolidated statements of income. For an operating mine, the adjusted carrying amount of the related asset is depreciated prospectively. Adjustments also result in changes to future finance costs.
Litigation and Other Provisions	Litigation and Other Provisions Provisions are recognized when a present obligation exists (legal or constructive), as a result of a past event, for which it is probable that an outflow of resources will be required to settle the obligation, and a reliable estimate can be made of the amount of the obligation. Provisions are discounted to their present value using a current US dollar real risk-free pre-tax discount rate and the accretion expense is included in finance costs. Certain conditions may exist as of the date the financial statements are issued, which may result in a loss to the Company, but which will only be resolved when one or more future events occur or fail to occur. In assessing loss contingencies related to legal proceedings that are pending against us or unasserted claims that may result in such proceedings, the Company with assistance from its legal counsel evaluates the perceived merits of any legal proceedings or unasserted claims as well as the perceived merits of the amount of relief sought or expected to be sought. If the assessment of a contingency suggests that a loss is probable, and the amount can be reliably estimated, then a loss is recorded. When a contingent loss is not probable but is reasonably possible, or is probable but the amount of loss cannot be reliably estimated, then details of the contingent loss are disclosed. Loss contingencies considered remote are generally not disclosed unless they involve guarantees, in which case we disclose the nature of the guarantee. Legal fees incurred in connection with pending legal proceedings are expensed as incurred. Contingent gains are only recognized when the inflow of economic benefits is virtually certain.
Stock-Based Compensation	Stock-Based Compensation We recognize the expense related to these plans over the vesting period, beginning once the grant has been approved and announced to the beneficiaries. Cash-settled awards are measured at fair value initially using the market value of the underlying shares on the day preceding the date of the grant of the award and are required to be remeasured to fair value at each reporting date until settlement. The cost is then recorded over the vesting period of the award. This expense, and any changes in the fair value of the award, is recorded to the same expense category as the award recipient’s payroll costs. The cost of a cash-settled award is recorded within liabilities until settled. Barrick offers cash-settled (Restricted Share Units (“RSU”), Deferred Share Units (“DSU”), Performance Restricted Share Units (“PRSU”) and Performance Granted Share Units (“PGSU”)) awards to certain employees, officers and directors of the Company. Equity-settled awards are measured at fair value, using the Lattice model for stock options, with market related inputs as of the date of the grant. The cost is recorded over the vesting period of the award to the same expense category as the award recipient’s payroll costs (i.e., cost of sales or general and administrative) and the corresponding entry is recorded in equity. Equity-settled awards are not remeasured subsequent to the initial grant date. Barrick offers equity-settled (Employee Stock Option Plan (“ESOP”), Global Employee Share Plan (“GESP”), Long-Term Incentive Plan “LTIP”) and Barrick Share Purchase Plan (“BSPP”)) awards to certain employees, officers and directors of the Company. We use the accelerated method (also referred to as ‘graded’ vesting) for attributing stock option expense over the vesting period. Stock option expense incorporates an expected forfeiture rate. The expected forfeiture rate is estimated based on historical forfeiture rates and expectations of future forfeiture rates. We make adjustments if the actual forfeiture rate differs from the expected rate. Employee Stock Option Plan Under Barrick’s ESOP, certain officers and key employees of the Corporation may purchase common shares at an exercise price that is equal to the closing share price on the day before the grant of the option. The grant date is the date when the details of the award, including the number of options granted to the individual and the exercise price, are approved. Stock options vest equally over four years, beginning in the year after granting. The ESOP arrangement has graded vesting terms, and therefore multiple vesting periods must be valued and accounted for separately over their respective vesting periods. The compensation expense of the instruments issued for each grant under the ESOP is calculated using the Lattice model. The compensation expense is adjusted by the estimated forfeiture rate which is estimated based on historical forfeiture rates and expectations of future forfeiture rates. We make adjustments if the actual forfeiture rate differs from the expected rate. Restricted Share Units Under our RSU plan, selected employees are granted RSUs where each RSU has a value equal to one Barrick common share. RSUs generally vest within three years and upon vesting the employee will receive either cash or common shares purchased on the open market, depending on the terms of the grant. Additional RSUs are credited to reflect dividends paid on Barrick common shares over the vesting period. A liability for RSUs is measured at fair value on the grant date and is subsequently adjusted for changes in fair value. The liability is recognized on a straight-line basis over the vesting period, with a corresponding charge to compensation expense, as a component of corporate administration and operating segment administration. Compensation expenses for RSUs incorporate an estimate for expected forfeiture rates based on which the fair value is adjusted. Deferred Share Units Under our DSU plan, Directors must receive at least 63.6% of their basic annual retainer in the form of DSUs or cash to purchase common shares that cannot be sold, transferred or otherwise disposed of until the Director leaves the Board. Each DSU has the same value as one Barrick common share. DSUs must be retained until the Director leaves the Board, at which time the cash value of the DSUs is paid out. Additional DSUs are credited to reflect dividends paid on Barrick common shares. The initial fair value of the liability is calculated as of the grant date and is recognized immediately. Subsequently, at each reporting date and on settlement, the liability is remeasured, with any change in fair value recorded as compensation expense in the period. Officers may also elect to receive a portion or all of their incentive compensation in the form of DSUs. We also allow granting of DSUs to other officers and employees at the discretion of the Board Compensation Committee. Performance Restricted Share Units Under our PRSU plan, selected employees are granted PRSUs, where each PRSU has a value equal to one Barrick common share. PRSUs vest at the end of a three -year period and are settled in cash on the third anniversary of the grant date. Additional PRSUs are credited to reflect dividends paid on Barrick common shares over the vesting period. Vesting, and therefore the liability, is based on the achievement of performance goals and the target settlement ranges from 0% to 200% of the original grant of units. The value of a PRSU reflects the value of a Barrick common share and the number of share units issued is adjusted for its relative performance against certain competitors and other internal financial performance measures. Therefore, the fair value of the PRSUs is determined with reference to the closing stock price at each remeasurement date. The initial fair value of the liability is calculated as of the grant date and is recognized within compensation expense using the straight-line method over the vesting period. Subsequently, at each reporting date and on settlement, the liability is remeasured, with any changes in fair value recorded as compensation expense. The fair value is adjusted for the revised estimated forfeiture rate. Performance Granted Share Units Under our PGSU plan, selected employees are granted PGSUs, where each PGSU has a value equal to one Barrick common share. Annual PGSU awards are determined based on a multiple ranging from one to six times base salary (depending on position and level of responsibility) multiplied by a performance factor. The number of PGSUs granted to a plan participant is determined by dividing the dollar value of the award by the closing price of Barrick common shares on the day prior to the grant, or if the grant date occurs during a blackout period, by the greater of (i) the closing price of Barrick common shares on the day prior to the grant date and (ii) the closing price of Barrick Common Shares on the first day following the expiration of the blackout. For all PGSUs that were outstanding as at December 31, 2019, upon vesting the after-tax value of the award is used to purchase common shares and generally these shares cannot be sold until the employee retires or leaves Barrick. These PGSUs vest at the end of the third year from the date of the grant. The initial fair value of the liability is calculated as of the grant date and is recognized within compensation expense using the straight-line method over the vesting period. Subsequently, at each reporting date and on settlement, the liability is remeasured, with any changes in fair value recorded as compensation expense. Long-Term Incentive Plan (Employees) Under our LTIP plan, restricted shares are issued to selected employees, subject to a satisfactory performance level being achieved during the 12 month period prior to the exercise date of each tranche of shares as well as a number of company related performance criteria. All employees to whom restricted shares have been granted are expected to meet this level of performance. The performance period is up to three years where the employee must remain in employment for the shares to vest. There are no market based vesting conditions on the share awards. Long-Term Incentive Plan (Executive Directors) The LTIP is subject to three performance conditions: relative total shareholder return compared to the Euromoney Global Gold Index, total cash cost per ounce and reserve replacement ratio. No dividends are attributable during the vesting period. Barrick Share Purchase Plan Under our BSPP plan, certain Barrick employees can purchase Company shares through payroll deduction. Each year, employees may contribute 1% - 10% of their combined base salary and annual short-term incentive, and Barrick will match 100% of the contribution, up to a maximum of C $5,000 or US $4,000 per year. Both Barrick and the employee make the contributions with the funds being transferred to a custodian who purchases Barrick Common Shares in the open market. Shares purchased with employee and Barrick contributions have no vesting requirement. Barrick recognizes the expense when Barrick contributions are made and has no ongoing liability. Global Employee Share Plan Under our GESP plan, Barrick employees are awarded Company Common Shares. These shares vest immediately, but must be held until the employee ceases to be employed by the Company. Barrick recognizes the expense when the award is announced and has no ongoing liability.
Post-Retirement Benefits	Post-Retirement Benefits Defined Contribution Pension Plans Certain employees take part in defined contribution employee benefit plans whereby we contribute up to a certain percentage of the employee’s annual salary. We also have a retirement plan for certain officers of Barrick under which we contribute 15% of the officer’s annual salary and annual short-term incentive. The contributions are recognized as compensation expense as incurred. The Company has no further payment obligations once the contributions have been paid. Defined Benefit Pension Plans We have qualified defined benefit pension plans that cover certain former United States and Canadian employees and provide benefits based on employees’ years of service. Our policy is to fund the amounts necessary on an actuarial basis to provide enough assets to meet the benefits payable to plan members. Independent trustees administer assets of the plans, which are invested mainly in fixed-income and equity securities. As well as the qualified plans, we have non-qualified defined benefit pension plans covering certain employees and former directors of Barrick. No funding is done on these plans and contributions for future years are required to be equal to benefit payments. Actuarial gains and losses arising from experience adjustments and changes in actuarial assumptions are charged or credited to equity in OCI in the period in which they arise. Our valuations are carried out using the projected unit credit method. We record the difference between the fair value of the plan assets and the present value of the plan obligations as an asset or liability on the consolidated balance sheets. Pension Plan Assets and Liabilities Pension plan assets, which consist primarily of fixed-income and equity securities, are valued using current market quotations. Plan obligations and the annual pension expense are determined on an actuarial basis and are affected by numerous assumptions and estimates including the market value of plan assets, estimates of the expected return on plan assets, discount rates, future wage increases and other assumptions. The discount rate and life expectancy are the assumptions that generally have the most significant impact on our pension cost and obligation. Other Post-Retirement Benefits We provide post-retirement medical, dental, and life insurance benefits to certain employees. Actuarial gains and losses resulting from variances between actual results and economic estimates or actuarial assumptions are recorded in OCI.
Disclosure of voluntary change in accounting policy [text block]	y) New Accounting Standards Effective in 2019 IFRS 16 Leases We have adopted the requirements of IFRS 16 Leases (“IFRS 16”) as of January 1, 2019. IFRS 16 specifies how to recognize, measure, present and disclose leases. The standard provides a single lessee accounting model, requiring lessees to recognize assets and liabilities for all major leases where a lessee has the right to control the use of an identified asset. We elected to apply IFRS 16 using the modified retrospective approach and therefore the comparative information has not been restated and continues to be reported under IAS 17 Leases and IFRIC 4: Determining Whether an Arrangement Contains a Lease. The details of accounting policy changes and the quantitative impact of these changes are described below. In the previous year, the Company only recognized lease assets and lease liabilities in relation to leases that were classified as ‘finance leases’ under IAS 17. The assets were presented in property, plant and equipment and the liabilities as part of the Company’s borrowings. From January 1, 2019, leases are recognized as a right-of-use asset and a corresponding liability at the date at which the leased asset is available for use by the Company. Assets and liabilities arising from a lease are initially measured on a present value basis. Lease liabilities include the net present value of the following lease payments: • fixed payments (including in-substance fixed payments), less any lease incentives receivable; • variable lease payments that are based on an index or a rate; • amounts expected to be payable by the lessee under residual value guarantees; • the exercise price of a purchase option if the lessee is reasonably certain to exercise that option; and • payments of penalties for terminating the lease, if the lease term reflects the lessee exercising that option. The lease payments are discounted using the interest rate implicit in the lease. If that rate cannot be determined, the lessee’s incremental borrowing rate is used, being the rate that the lessee would have to pay to borrow the funds necessary to obtain an asset of similar value in a similar economic environment with similar terms and conditions. Right-of-use assets are measured at cost comprising the following: • the amount of the initial measurement of lease liability; • any lease payments made at or before the commencement date less any lease incentives received; • any initial direct costs; and • restoration costs. The finance cost is charged to profit or loss over the lease period so as to produce a constant periodic rate of interest on the remaining balance of the liability for each period. The right-of-use asset is depreciated over the shorter of the asset's useful life and the lease term on a straight-line basis. Payments associated with short-term leases and leases of low-value assets are recognized on a straight-line basis as an expense in profit or loss. Short-term leases are leases with a lease term of 12 months or less. Low-value assets are generally comprised of IT equipment and small items of office furniture. Impact on consolidated financial statements On adoption of IFRS 16, we recognized lease liabilities in relation to leases which had previously been classified as operating leases . These liabilities were measured at the present value of the remaining lease payments, discounted using the weighted average incremental borrowing rate as of January 1, 2019 of 5.83% . For leases previously classified as finance leases the entity recognized the carrying amount of the lease asset and lease liability immediately before transition as the carrying amount of the right-of-use asset and the lease liability at the date of initial application. The measurement principles of IFRS 16 are applied after the date of initial application. The following table reconciles the Company’s operating lease obligations as at December 31, 2018 as previously disclosed in the Company’s 2018 Annual Financial Statements, to the lease obligations recognized on initial application of IFRS 16 at January 1, 2019: Barrick operating lease commitments disclosed as at December 31, 2018 $ 167 Add: embedded service contracts not previously assessed as a lease 38 (Less): contracts reassessed as service agreements (130 ) (Less): short-term leases recognized on a straight-line basis as expense (6 ) (Less): low-value leases recognized on a straight-line basis as expense (1 ) (Less): discounting using the lessee’s incremental borrowing rate of at January 1, 2019 (4 ) Discounted leases recognized as at January 1, 2019 $ 64 Add: finance lease liabilities recognized as at December 31, 2018 19 Add: leases acquired as part of the merger with Randgold on January 1, 2019 28 Discounted lease liability recognized as at January 1, 2019 $ 111 Of which are: Current lease liabilities 37 Non-current lease liabilities $ 74 The recognized right-of-use assets relate to the following types of assets: December 31, 2019 January 1, 2019 Buildings, Plant & Equipment $ 63 $ 69 Underground mobile equipment 7 7 Light vehicles and other mobile equipment 5 9 Total right-of-use assets $ 75 $ 85 Right-of-use assets were measured at the amount equal to the lease liability, except for onerous contracts. The change in accounting policy affected the following items in the balance sheet on January 1, 2019: • property, plant and equipment - increase by $85 million • deferred income tax assets - $ nil . • debt - increase by $92 million There was no net impact on deficit on January 1, 2019. Consolidated net income decreased by $3 million for the year ended December 31, 2019 as a result of the adoption of IFRS 16. Additions to the right-of-use assets during the year ended December 31, 2019 were $49 million . Practical expedients applied In applying IFRS 16 for the first time, we have used the following practical expedients permitted by the standard: • the accounting for operating leases with a remaining lease term of less than 12 months as at January 1, 2019 as short-term leases; • the exclusion of initial direct costs for the measurement of the right-of-use asset at the date of initial application; • the adjustment of the right-of-use assets at the date of initial application by the amount of any provision for onerous contracts recognized immediately before the date of initial application; and • to not separate non-lease components from lease components, and instead account for each lease component and any associated non-lease components as a single lease component.
New Accounting Standards Issued But Not Yet Effective	z) New Accounting Standards Issued But Not Yet Effective Certain new accounting standards and interpretations have been published that are not mandatory for the current period and have not been early adopted. These standards are not expected to have a material impact on Barrick in the current or future reporting periods.

SIGNIFICANT ACCOUNTING POLICI_3

SIGNIFICANT ACCOUNTING POLICIES (Tables)	12 Months Ended
	Dec. 31, 2019
Significant Accounting Policies [Abstract]
Subsidiaries other than 100% owned Barrick subsidiaries	Outlined below is information related to our joint arrangements and entities other than 100% owned Barrick subsidiaries at December 31, 2019 : Place of business Entity type Economic interest 1 Method 2 Nevada Gold Mines 3,4,5,6,7 United States Subsidiary 61.5% Consolidation Loulo-Gounkoto 3 Mali Subsidiary 80% Consolidation Tongon 3 Côte d’Ivoire Subsidiary 89.7% Consolidation Pueblo Viejo 3 Dominican Republic Subsidiary 60% Consolidation Norte Abierto Project Chile JO 50% Our share Donlin Gold Project United States JO 50% Our share Porgera Mine 8 Papua New Guinea JO 47.5% Our share Veladero Argentina JO 50% Our share Kibali 9 Democratic Republic of Congo JV 45% Equity Method Morila 9 Mali JV 40% Equity Method GNX 9,10 Chile JV 50% Equity Method Jabal Sayid 9 Saudi Arabia JV 50% Equity Method Kabanga Project 9,10 Tanzania JV 50% Equity Method Zaldívar 9 Chile JV 50% Equity Method 1 Unless otherwise noted, all of our joint arrangements are funded by contributions made by the parties sharing joint control in proportion to their economic interest. 2 For our JOs, we recognize our share of any assets, liabilities, revenues and expenses of the JO. 3 We consolidate our interests in Carlin, Cortez, Turquoise Ridge, Phoenix, Long Canyon, Loulo-Gounkoto, Tongon and Pueblo Viejo and record a non-controlling interest for the 38.5% , 38.5% , 38.5% , 38.5% , 38.5% , 20% , 10.3% and 40% , respectively, that we do not own. On September 17, 2019, Barrick acquired all of the shares of Acacia it did not own, bringing our ownership from 63.9% to 100% . When the Government of Tanzania’s 16% free-carried interest is made effective, which is expected to be as of January 1, 2020, our ownership will be brought down to 84% . 4 On July 1, 2019, Barrick’s Goldstrike (including 60% of South Arturo) and Newmont’s Carlin were contributed to Nevada Gold Mines, a joint venture with Newmont, and are now referred to as Carlin. This brought our ownership to 61.5% of Carlin (including 36.9% of South Arturo). 5 On July 1, 2019, Cortez was contributed to Nevada Gold Mines bringing our ownership down to 61.5% . 6 Barrick owned 75% of Turquoise Ridge through to the end of the second quarter of 2019, with our joint venture partner, Newmont, owning the remaining 25% . Turquoise Ridge was proportionately consolidated on the basis that the joint venture partners that have joint control have rights to the assets and obligations for the liabilities relating to the arrangement. On July 1, 2019, Barrick’s 75% interest in Turquoise Ridge and Newmont’s Twin Creeks and 25% interest in Turquoise Ridge were contributed to Nevada Gold Mines. This brought our ownership to 61.5% of Turquoise Ridge and Twin Creeks, now referred to as Turquoise Ridge. 7 Phoenix and Long Canyon were acquired as a result of the formation of Nevada Gold Mines on July 1, 2019, resulting in an ownership of 61.5% . 8 We have joint control given that decisions about relevant activities require unanimous consent of the parties to the joint operation. 9 Barrick has commitments of $324 million relating to its interest in the joint ventures. 10 These JVs are early stage exploration projects and, as such, do not have any significant assets, liabilities, income, contractual commitments or contingencies. Nevada Gold Mines Pueblo Viejo Acacia Loulo-Gounkoto Tongon Other Total NCI in subsidiary at December 31, 2019 38.5 % 40 % — % 20 % 10.3 % Various At January 1, 2018 $— $1,290 $480 $— $— $11 $1,781 Share of income (loss) — 89 22 — — (1 ) 110 Cash contributed — — — — — 24 24 Disbursements — (108 ) — — — (15 ) (123 ) At December 31, 2018 $— $1,271 $502 $— $— $19 $1,792 Acquisitions 1 5,910 — — 887 61 (76 ) 6,782 Share of income (loss) 275 311 (7 ) 30 (3 ) (1 ) 605 Cash contributed 90 — — — — 50 140 Decrease in non-controlling interest 1 — — (495 ) — — (495 ) Disbursements (236 ) (158 ) — (16 ) (11 ) (8 ) (429 ) At December 31, 2019 $6,039 $1,424 $— $901 $47 ($16 ) $8,395 Nevada Gold Mines 1 Pueblo Viejo Loulo-Gounkoto Tongon For the years ended December 31 2019 2018 2019 2018 2019 2018 2019 2018 Revenue $2,707 $— $1,409 $1,333 $1,007 $— $384 $— Income (loss) from continuing operations after tax 739 — 708 206 158 — (29 ) — Other comprehensive income (loss) — — — — — — — — Total comprehensive income (loss) $739 $— $708 $206 $158 $— ($29 ) $— Dividends paid to NCI $236 $— $158 $— $16 $— $11 $— Summarized Statements of Cash Flows Nevada Gold Mines 1 Pueblo Viejo Loulo-Gounkoto Tongon For the years ended December 31 2019 2018 2019 2018 2019 2018 2019 2018 Net cash provided by (used in) operating activities $1,296 $— $504 $272 $259 $— $129 $— Net cash used in investing activities (539 ) — (107 ) (144 ) (130 ) — 61 — Net cash used in financing activities (379 ) — (397 ) (108 ) (80 ) — (107 ) — Net increase (decrease) in cash and cash equivalents $378 $— $— $20 $49 $— $83 $— Nevada Gold Mines Pueblo Viejo Loulo-Gounkoto Tongon As at December 31, 2019 As at December 31, 2018 As at December 31, 2019 As at December 31, 2018 As at December 31, 2019 As at December 31, 2018 As at December 31, 2019 As at December 31, 2018 Current assets $10,977 $— $500 $520 $406 $— $158 $— Non-current assets 15,909 — 4,303 3,469 4,662 — 424 — Total assets $26,886 $— $4,803 $3,989 $5,068 $— $582 $— Current liabilities 466 — 428 720 234 — 59 — Non-current liabilities 1,217 — 932 402 634 — 106 — Total liabilities $1,683 $— $1,360 $1,122 $868 $— $165 $—
Joint arrangements	Outlined below is information related to our joint arrangements and entities other than 100% owned Barrick subsidiaries at December 31, 2019 : Place of business Entity type Economic interest 1 Method 2 Nevada Gold Mines 3,4,5,6,7 United States Subsidiary 61.5% Consolidation Loulo-Gounkoto 3 Mali Subsidiary 80% Consolidation Tongon 3 Côte d’Ivoire Subsidiary 89.7% Consolidation Pueblo Viejo 3 Dominican Republic Subsidiary 60% Consolidation Norte Abierto Project Chile JO 50% Our share Donlin Gold Project United States JO 50% Our share Porgera Mine 8 Papua New Guinea JO 47.5% Our share Veladero Argentina JO 50% Our share Kibali 9 Democratic Republic of Congo JV 45% Equity Method Morila 9 Mali JV 40% Equity Method GNX 9,10 Chile JV 50% Equity Method Jabal Sayid 9 Saudi Arabia JV 50% Equity Method Kabanga Project 9,10 Tanzania JV 50% Equity Method Zaldívar 9 Chile JV 50% Equity Method 1 Unless otherwise noted, all of our joint arrangements are funded by contributions made by the parties sharing joint control in proportion to their economic interest. 2 For our JOs, we recognize our share of any assets, liabilities, revenues and expenses of the JO. 3 We consolidate our interests in Carlin, Cortez, Turquoise Ridge, Phoenix, Long Canyon, Loulo-Gounkoto, Tongon and Pueblo Viejo and record a non-controlling interest for the 38.5% , 38.5% , 38.5% , 38.5% , 38.5% , 20% , 10.3% and 40% , respectively, that we do not own. On September 17, 2019, Barrick acquired all of the shares of Acacia it did not own, bringing our ownership from 63.9% to 100% . When the Government of Tanzania’s 16% free-carried interest is made effective, which is expected to be as of January 1, 2020, our ownership will be brought down to 84% . 4 On July 1, 2019, Barrick’s Goldstrike (including 60% of South Arturo) and Newmont’s Carlin were contributed to Nevada Gold Mines, a joint venture with Newmont, and are now referred to as Carlin. This brought our ownership to 61.5% of Carlin (including 36.9% of South Arturo). 5 On July 1, 2019, Cortez was contributed to Nevada Gold Mines bringing our ownership down to 61.5% . 6 Barrick owned 75% of Turquoise Ridge through to the end of the second quarter of 2019, with our joint venture partner, Newmont, owning the remaining 25% . Turquoise Ridge was proportionately consolidated on the basis that the joint venture partners that have joint control have rights to the assets and obligations for the liabilities relating to the arrangement. On July 1, 2019, Barrick’s 75% interest in Turquoise Ridge and Newmont’s Twin Creeks and 25% interest in Turquoise Ridge were contributed to Nevada Gold Mines. This brought our ownership to 61.5% of Turquoise Ridge and Twin Creeks, now referred to as Turquoise Ridge. 7 Phoenix and Long Canyon were acquired as a result of the formation of Nevada Gold Mines on July 1, 2019, resulting in an ownership of 61.5% . 8 We have joint control given that decisions about relevant activities require unanimous consent of the parties to the joint operation. 9 Barrick has commitments of $324 million relating to its interest in the joint ventures. 10 These JVs are early stage exploration projects and, as such, do not have any significant assets, liabilities, income, contractual commitments or contingencies. Equity Accounting Method Investment Continuity Kibali Jabal Sayid Zaldívar Other Total At January 1, 2018 $— $206 $975 $32 $1,213 Equity pick-up (loss) from equity investees — 39 14 (7 ) 46 Funds invested — — — 5 5 Impairment charges — — — (30 ) (30 ) At December 31, 2018 $— $245 $989 $— $1,234 Acquisitions 3,195 — — 58 3,253 Equity pick-up from equity investees 98 51 16 — 165 Funds invested — — — 2 2 Dividends paid (75 ) — (50 ) — (125 ) Shareholder loan repayment — — — (2 ) (2 ) At December 31, 2019 $3,218 $296 $955 $58 $4,527 Summarized Equity Investee Financial Information Kibali Jabal Sayid Zaldívar For the years ended December 31 2019 2018 2019 2018 2019 2018 Revenue $1,123 $— $315 $296 $685 $599 Cost of sales (excluding depreciation) 460 — 133 158 442 404 Depreciation 435 — 53 39 172 118 Finance expense — — 1 2 12 — Other expense (income) 18 — (2 ) 9 10 25 Income from continuing operations before tax $210 $— $130 $88 $49 $52 Income tax expense (16 ) — (27 ) (10 ) (17 ) (24 ) Income from continuing operations after tax $194 $— $103 $78 $32 $28 Total comprehensive income $194 $— $103 $78 $32 $28 Summarized Balance Sheet Kibali Jabal Sayid Zaldívar For the years ended December 31 2019 2018 2019 2018 2019 2018 Cash and equivalents $453 $— $43 $128 $139 $129 Other current assets 1 338 — 67 68 632 602 Total current assets $791 $— $110 $196 $771 $731 Non-current assets 4,623 — 464 482 1,823 1,927 Total assets $5,414 $— $574 $678 $2,594 $2,658 Current financial liabilities (excluding trade, other payables & provisions) $11 $— $— $48 $19 $18 Other current liabilities 35 — 63 41 99 85 Total current liabilities $46 $— $63 $89 $118 $103 Non-current financial liabilities (excluding trade, other payables & provisions) 44 — 150 331 11 12 Other non-current liabilities 648 — 14 14 536 546 Total non-current liabilities $692 $— $164 $345 $547 $558 Total liabilities $738 $— $227 $434 $665 $661 Net assets $4,676 $— $347 $244 $1,929 $1,997 1 Zaldívar other current assets include inventory of $ 543 million ( 2018 : $ 533 million). The information above reflects the amounts presented in the financial information of the joint venture adjusted for differences between IFRS and local GAAP. Reconciliation of Summarized Financial Information to Carrying Value Kibali Jabal Sayid 1 Zaldívar Opening net assets $— $244 $1,997 Acquisition 4,632 — — Income for the period 194 103 32 Dividend (150 ) — (100 ) Closing net assets, December 31 $4,676 $347 $1,929 Barrick's share of net assets 2,107 173 965 Equity earnings adjustment — — (10 ) Goodwill recognition 1,111 123 — Carrying value $3,218 $296 $955 1 A $75 million non-interest bearing shareholder loan due from the Jabal Sayid JV is presented as part of Other Assets (refer to note 22).
Estimated useful lives of major asset categories	Estimated useful lives of Major Asset Categories Buildings, plant and equipment 1 – 28 years Underground mobile equipment 5 - 7 years Light vehicles and other mobile equipment 1 - 7 years Furniture, computer and office equipment 1 - 7 years PROPERTY, PLANT AND EQUIPMENT Buildings, plant and equipment 1 Mining property costs subject to depreciation 2,4 Mining property costs not subject to depreciation 2,3 Total At January 1, 2019 Net of accumulated depreciation $3,600 $6,258 $2,968 $12,826 Additions 5,6 298 3,458 1,371 5,127 Capitalized interest — — 14 14 Acquisitions 8 3,473 2,270 1,660 7,403 Divestiture 9 (127 ) (106 ) (27 ) (260 ) Disposals (22 ) — — (22 ) Depreciation (1,107 ) (907 ) — (2,014 ) Impairment reversals (charges) 990 742 (309 ) 1,423 Transfers 7 648 573 (1,221 ) — Assets held for sale — — (356 ) (356 ) At December 31, 2019 $7,753 $12,288 $4,100 $24,141 At December 31, 2019 Cost $18,544 $27,268 $16,050 $61,862 Accumulated depreciation and impairments (10,791 ) (14,980 ) (11,950 ) (37,721 ) Net carrying amount – December 31, 2019 $7,753 $12,288 $4,100 $24,141 Buildings, plant and equipment 1 Mining property costs subject to depreciation 2,4 Mining property costs not subject to depreciation 2,3 Total At January 1, 2018 Cost $14,209 $20,938 $14,637 $49,784 Accumulated depreciation and impairments (9,996 ) (14,416 ) (11,566 ) (35,978 ) Net carrying amount – January 1, 2018 $4,213 $6,522 $3,071 $13,806 Additions 6 (21 ) 199 1,050 1,228 Capitalized interest — — 9 9 Disposals (7 ) — — (7 ) Depreciation (790 ) (772 ) — (1,562 ) Impairment reversals (charges) (394 ) (178 ) (76 ) (648 ) Transfers 7 599 487 (1,086 ) — At December 31, 2018 $3,600 $6,258 $2,968 $12,826 At December 31, 2018 Cost $14,750 $21,624 $14,610 $50,984 Accumulated depreciation and impairments (11,150 ) (15,366 ) (11,642 ) (38,158 ) Net carrying amount – December 31, 2018 $3,600 $6,258 $2,968 $12,826 1 Additions include $85 million of transitional adjustments for the recognition of leased right-of-use assets upon the Company’s adoption of IFRS 16 on January 1, 2019 (refer to note 2), as well as $ 49 million of right-of-use assets for lease arrangements entered into during the year ended December 31, 2019. Depreciation includes depreciation for leased right-of-use assets of $ 25 million for the year ended December 31, 2019 . The net carrying amount of leased right-of-use assets was $ 75 million as at December 31, 2019 . 2 Includes capitalized reserve acquisition costs, capitalized development costs and capitalized exploration and evaluation costs other than exploration license costs included in intangible assets. 3 Assets not subject to depreciation include construction-in-progress, projects and acquired mineral resources and exploration potential at operating minesites and development projects. 4 Assets subject to depreciation include the following items for production stage properties: acquired mineral reserves and resources, capitalized mine development costs, capitalized stripping and capitalized exploration and evaluation costs. 5 Additions include $3,422 million of remeasurement gain related to the change in ownership of Turquoise Ridge acquired though the Nevada Joint Venture. Refer to note 4 for further details. 6 Additions include revisions to the capitalized cost of closure and rehabilitation activities. 7 Primarily relates to long-lived assets that are transferred between categories within PP&E once they are placed into service. 8 Acquisitions include assets acquired as part of the Merger and the establishment of Nevada Gold Mines. Refer to note 4 for further details. 9 Relates to the sale of our 50% interest in Kalgoorlie. Refer to note 4 for further details. Mineral Property Costs Not Subject to Depreciation Carrying amount at Dec. 31, 2019 Carrying amount at Dec. 31, 2018 Construction-in-progress 1 $1,009 $786 Acquired mineral resources and exploration potential 1,504 124 Projects Pascua-Lama 754 1,245 Norte Abierto 649 639 Donlin Gold 184 174 $4,100 $2,968 1 Represents assets under construction at our operating minesites.
Lease obligation reconciliation	The following table reconciles the Company’s operating lease obligations as at December 31, 2018 as previously disclosed in the Company’s 2018 Annual Financial Statements, to the lease obligations recognized on initial application of IFRS 16 at January 1, 2019: Barrick operating lease commitments disclosed as at December 31, 2018 $ 167 Add: embedded service contracts not previously assessed as a lease 38 (Less): contracts reassessed as service agreements (130 ) (Less): short-term leases recognized on a straight-line basis as expense (6 ) (Less): low-value leases recognized on a straight-line basis as expense (1 ) (Less): discounting using the lessee’s incremental borrowing rate of at January 1, 2019 (4 ) Discounted leases recognized as at January 1, 2019 $ 64 Add: finance lease liabilities recognized as at December 31, 2018 19 Add: leases acquired as part of the merger with Randgold on January 1, 2019 28 Discounted lease liability recognized as at January 1, 2019 $ 111 Of which are: Current lease liabilities 37 Non-current lease liabilities $ 74 The recognized right-of-use assets relate to the following types of assets: December 31, 2019 January 1, 2019 Buildings, Plant & Equipment $ 63 $ 69 Underground mobile equipment 7 7 Light vehicles and other mobile equipment 5 9 Total right-of-use assets $ 75 $ 85

ACQUISITIONS AND DIVESTITURES (

ACQUISITIONS AND DIVESTITURES (Tables)	12 Months Ended
	Dec. 31, 2019
Business Combinations and Discontinued Operations [Abstract]
Disclosure of detailed information about business combination [text block]	millions Fair value of non-controlling interest of Barrick mines contributed $ 3,897 Final fair value allocation of Newmont mines acquired Current assets $ 149 Inventory 970 Property, plant and equipment 3,534 Goodwill 2,520 Total assets $ 7,173 Current liabilities $ 119 Deferred income tax liabilities 268 Provisions 449 Total liabilities $ 836 Non-controlling interests 2,440 Net assets acquired $ 3,897 millions Purchase Cost Fair value of equity shares issued $ 7,903 Fair value of restricted shares issued 6 Fair value of consideration $ 7,909 Final Fair Value at Acquisition Cash $ 751 Other current assets 319 Equity in investees 3,253 Property, plant and equipment 3,869 Other assets 230 Goodwill 1,672 Total assets $ 10,094 Current liabilities $ 539 Deferred income tax liabilities 688 Provisions 55 Debt 1 31 Total liabilities $ 1,313 Non-controlling interests 872 Net assets $ 7,909

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2019
Operating Segments [Abstract]
Segment information	Capital Expenditures Information Segment Capital Expenditures 1 As at December 31, 2019 As at December 31, 2018 Carlin $303 $195 Cortez 327 349 Turquoise Ridge 125 62 Pueblo Viejo 107 145 Loulo-Gounkoto 198 — Kibali 43 — Veladero 95 143 Porgera 50 62 North Mara 57 82 Other Mines 384 284 Reportable segment total $1,689 $1,322 Other items not allocated to segments 110 121 Total $1,799 $1,443 Share of equity investee (43 ) — Total $1,756 $1,443 1 Segment capital expenditures are presented for internal management reporting purposes on an accrual basis. Capital expenditures in the consolidated statements of cash flow are presented on a cash basis. In 2019 , cash expenditures were $1,701 million ( 2018 : $1,400 million) and the increase in accrued expenditures was $55 million ( 2018 : $43 million increase ). herefore not reflected in segment income. Prior period figures have been restated to reflect this disaggregation. Consolidated Statements of Income Information Cost of Sales For the year ended December 31, 2019 Revenue Direct mining, royalties and community relations Depreciation Exploration, evaluation and project expenses Other expenses (income) 1 Segment income (loss) Carlin 2,3 $1,862 $998 $312 $17 $4 $531 Cortez 2 1,325 511 240 8 16 550 Turquoise Ridge 2,4 688 285 140 4 — 259 Pueblo Viejo 2 1,409 525 196 12 — 676 Loulo-Gounkoto 2 1,007 456 295 12 6 238 Kibali 505 207 196 3 (9 ) 108 Veladero 386 208 115 3 3 57 Porgera 403 242 42 2 4 113 North Mara 2 462 213 97 — 6 146 Other Mines 2 2,175 1,426 554 19 46 130 Reportable segment income $10,222 $5,071 $2,187 $80 $76 $2,808 Share of equity investee (505 ) (207 ) (196 ) (3 ) 9 (108 ) Segment income $9,717 $4,864 $1,991 $77 $85 $2,700 Consolidated Statements of Income Information Cost of Sales For the year ended December 31, 2018 Revenue Direct mining, royalties and community relations Depreciation Exploration, evaluation and project expenses Other expenses (income) 1 Segment income (loss) Carlin 2,3 $1,066 $624 $262 $19 ($5 ) $166 Cortez 2 1,589 442 386 16 19 726 Turquoise Ridge 2,4 331 178 28 — (1 ) 126 Pueblo Viejo 2 1,333 547 185 21 1 579 Loulo-Gounkoto 2 — — — — — — Kibali — — — — — — Veladero 366 189 121 2 1 53 Porgera 269 170 42 — 1 56 North Mara 2 423 202 62 — 12 147 Other Mines 2 1,866 1,401 334 14 69 48 Reportable segment income $7,243 $3,753 $1,420 $72 $97 $1,901 Share of equity investee — — — — — — Segment income $7,243 $3,753 $1,420 $72 $97 $1,901 1 Includes accretion expense, which is included with finance costs in the consolidated statements of income. For the year ended December 31, 2019 , accretion expense was $53 million ( 2018 : $53 million). 2 Includes non-controlling interest portion of revenues, cost of sales and segment income (loss) for the year ended December 31, 2019 , for Pueblo Viejo, $566 million, $286 million, $274 million ( 2018 : $535 million, $289 million, $237 million), Nevada Gold Mines, $1,049 million , $704 million , $329 million (2018:$ nil , $ nil , $ nil ), Tanzania mines, $169 million, $125 million, $31 million ( 2018 : $240 million, $163 million, $ 61 million), Loulo-Gounkoto $201 million , $150 million , $48 million ( 2018 : $ nil , $ nil , $ nil ) and Tongon $39 million , $41 million , $(2) million ( 2018 : $ nil , $ nil , $ nil ). 3 On July 1, 2019, Barrick's Goldstrike and Newmont's Carlin mines were contributed to Nevada Gold Mines and are now operated as one segment referred to as Carlin. As a result, the amounts presented represent Goldstrike (including South Arturo) up until June 30, 2019, and the combined results of Carlin (including Goldstrike) thereafter including non-controlling interest. Refer to note 4. 4 Barrick owned 75% of Turquoise Ridge up until June 30, 2019, with our joint venture partner, Newmont, owning the remaining 25% . Turquoise Ridge was accounted for as a joint operation and proportionately consolidated. On July 1, 2019, Barrick's 75% interest in Turquoise Ridge and Newmont's Twin Creeks and 25% interest in Turquoise Ridge were contributed to Nevada Gold Mines and are now operated as one segment referred to as Turquoise Ridge. The figures presented in this table are based on our 75% interest in Turquoise Ridge until June 30, 2019 and the combined results of Turquoise Ridge (including Twin Creeks) thereafter including non-controlling interest. Refer to note 4. Reconciliation of Segment Income to Income from Continuing Operations Before Income Taxes For the years ended December 31 2019 2018 Segment income $2,700 $1,901 Other cost of sales/amortization 1 (56 ) (47 ) Exploration, evaluation and project expenses not attributable to segments (265 ) (311 ) General and administrative expenses (212 ) (265 ) Other (expense) income not attributable to segments 3,132 (46 ) Impairment reversals (charges) 1,423 (900 ) Loss on currency translation (109 ) (136 ) Closed mine rehabilitation (5 ) 13 Income from equity investees 165 46 Finance costs, net (includes non-segment accretion) 2 (416 ) (492 ) Gain on non-hedge derivatives 3 — — Income (loss) before income taxes 4 $6,357 ($237 ) 1 Includes realized hedge losses of $ nil ( 2018 : $4 million losses ). 2 Includes debt extinguishment losses of $3 million ( 2018 : $29 million losses). 3 Includes unrealized non-hedge losses of $ nil ( 2018 : $1 million losses ). 4 Includes non-controlling interest portion of revenues, cost of sales and non-segment income (loss) for the year ended December 31, 2019 , for Tanzania, $ nil , $ nil , $(17) million (2018: $ nil , $1 million , $2 million ) and Nevada Gold Mines, $ nil , $6 million , $1 million (2018: $ nil , $ nil , $ nil ).
Geographic information	Geographic Information Non-current assets Revenue 1 As at December 31, 2019 As at December 31, 2018 2019 2018 United States $16,514 $6,857 $4,190 $3,025 Mali 4,662 — 1,007 — Dominican Republic 4,303 3,468 1,409 1,334 Democratic Republic of Congo 3,218 — — — Chile 2,158 2,679 — — Zambia 1,705 735 393 502 Argentina 1,571 1,723 386 366 Tanzania 1,009 1,059 671 664 Canada 490 368 305 226 Côte d'Ivoire 424 — 384 — Saudi Arabia 368 408 — — Papua New Guinea 361 348 403 269 Peru 170 145 279 449 Australia — 396 290 408 Unallocated 552 467 — — Total $37,505 $18,653 $9,717 $7,243 1 Presented based on the location from which the product originated.

REVENUE (Tables)

REVENUE (Tables)	12 Months Ended
	Dec. 31, 2019
Revenue [abstract]
Revenue	REVENUE For the years ended December 31 2019 2018 Gold sales 1 Spot market sales $9,084 $6,575 Concentrate sales 101 25 Provisional pricing adjustments 1 — $9,186 $6,600 Copper sales 1 Copper concentrate sales $371 $549 Provisional pricing adjustments 22 (37 ) $393 $512 Other sales 2 $138 $131 Total $9,717 $7,243 1 Revenues include amounts transferred from OCI to earnings for commodity cash flow hedges. 2 Revenues from the sale of by-products from our gold and copper mines including silver revenue of $97 million (2018: $121 million ).

COST OF SALES (Tables)

COST OF SALES (Tables)	12 Months Ended
	Dec. 31, 2019
Analysis of income and expense [abstract]
Cost of sales	Gold Copper Other 4 Total For the years ended December 31 2019 2018 2019 2018 2019 2018 2019 2018 Direct mining cost 1,2,3 $4,274 $3,130 $224 $344 $6 $7 $4,504 $3,481 Depreciation 1,902 1,253 100 170 30 34 2,032 1,457 Royalty expense 308 196 34 39 — — 342 235 Community relations 30 42 3 5 — — 33 47 Total $6,514 $4,621 $361 $558 $36 $41 $6,911 $5,220 1 Direct mining cost related to gold and copper includes charges to reduce the cost of inventory to net realizable value of $ 26 million ( 2018 : $ 199 million). Refer to note 17. 2 Direct mining cost related to gold includes the costs of extracting by-products and export duties paid in Argentina. 3 Includes employee costs of $ 1,350 million ( 2018 : $ 1,001 million). 4 Other includes realized hedge gains and losses and corporate amortization.

EXPLORATION, EVALUATION AND P_2

EXPLORATION, EVALUATION AND PROJECT EXPENSES (Tables)	12 Months Ended
	Dec. 31, 2019
Exploration For and Evaluation of Mineral Resources [Abstract]
Exploration, evaluation and project expenses	For the years ended December 31 2019 2018 Global exploration and evaluation 1 $143 $121 Advanced project costs: Pascua-Lama 49 77 Other 20 36 Corporate development 2 51 60 Business improvement and innovation 10 44 Minesite exploration and evaluation 1 69 45 Total exploration, evaluation and project expenses $342 $383 1 Approximates the impact on operating cash flow. 2 2019 includes $ 44 million in transaction costs related to the Nevada Gold Mines, Acacia and Kalgoorlie transactions. 2018 includes $ 37 million in transaction costs related to the merger with Randgold.

OTHER EXPENSE (INCOME) (Tables)

OTHER EXPENSE (INCOME) (Tables)	12 Months Ended
	Dec. 31, 2019
Other Operating Income (Expense) [Abstract]
Operating expense (income)	For the years ended December 31 2019 2018 Other Expense: Litigation 1 26 68 Write-offs 2 3 51 Bulyanhulu reduced operations program costs 3 24 29 Bank charges 16 22 Insurance payment to Porgera JV — 13 Acacia transaction costs 4 18 — Tanzania - other 11 11 Other 28 28 Total other expense $126 $222 Other Income: Gain on sale of long-lived assets 5 ($441 ) ($68 ) Remeasurement of Turquoise Ridge to fair value 6 (1,886 ) — Remeasurement of silver sale liability 7 (628 ) — Lumwana tax settlement 8 (216 ) — Peru tax disputes settlement (18 ) — Insurance proceeds related to Kalgoorlie — (24 ) Interest Income (20 ) (22 ) Other (17 ) (18 ) Total other income ($3,226 ) ($132 ) Total ($3,100 ) $90 1 2018 primarily consists of Tanzania legal fees, and a settlement dispute regarding a historical supplier contract acquired as part of the Equinox acquisition in 2011. 2 2018 primarily relates to a $ 43 million write-off of a Western Australia long-term stamp duty receivable. 3 Primarily relates to care and maintenance costs. 4 Incurred by Acacia Mining Plc. 5 2019 includes a gain of $408 million from the sale of Kalgoorlie (refer to note 4). 2018 includes a gain of $45 million from the sale of a royalty asset at Acacia. 6 Refer to note 4 for further details. 7 Refer to note 29 for further details. 8 Refer to note 3 for further details.

IMPAIRMENT REVERSALS (Tables)

IMPAIRMENT REVERSALS (Tables)	12 Months Ended
	Dec. 31, 2019
Impairment Of Assets [Abstract]
Impairment (reversals) charges	For the years ended December 31 2019 2018 Impairment charges (reversals) of long-lived assets 1 ($1,423 ) $722 Impairment of intangibles 1 — 24 Impairment of goodwill 1 — 154 Total ($1,423 ) $900 1 Refer to note 21 for further details. The other key assumptions used in our impairment testing, based on the CGUs tested in each year, are summarized in the table below: 2019 2018 Copper price per lb (long-term) $3.00 $2.85 WACC - gold (range) 3%-7% 4%-11% WACC - gold (avg) 4 % 7 % WACC - copper n/a 10 % NAV multiple - gold (avg) 1.2 1.05 LOM years - gold (avg) 19 15 Value per ounce of gold $20 - $30 n/a Value per ounce of silver $0.28 - $0.42 n/a The carrying value of the CGUs that are most sensitive to changes in the key assumptions used in the FVLCD calculation are: As at December 31, 2019 Carrying Value Loulo-Gounkoto $4,198 Lumwana 1,307 Veladero 692 Bulyanhulu 579 Pascua-Lama 1 153 1 The carrying value of Pascua-Lama is presented net of the Wheaton streaming liability of $253 million (refer to note 29). For the year ended December 31, 2019 , we recorded net impairment reversals of $1,423 million ( 2018 : impairment losses of $746 million ) for non-current assets and impairment charges of $ nil ( 2018 : $154 million ) for goodwill, as summarized in the following table: For the years ended December 31 2019 2018 Lumwana ($947 ) $— Pueblo Viejo (865 ) — Pascua-Lama 296 (7 ) Cortez 57 9 Lagunas Norte 12 405 Golden Sunlight 9 — Veladero 3 246 Carlin 2 5 Equity method investments — 30 Acacia exploration sites — 24 Other 10 34 Total impairment (reversals) losses of long-lived assets ($1,423 ) $746 Veladero goodwill — 154 Total goodwill impairment losses $— $154 Total impairment (reversals) losses ($1,423 ) $900

GENERAL AND ADMINISTRATIVE EX_2

GENERAL AND ADMINISTRATIVE EXPENSES (Tables)	12 Months Ended
	Dec. 31, 2019
General and Administrative Expenses [Abstract]
General and administrative expenses	For the years ended December 31 2019 2018 Corporate administration 1 $185 $239 Operating segment administration 27 26 Total 2 $212 $265 1 Includes $ 18 million ( 2018 : $ 63 million) related to one-time severance payments. 2 Includes employee costs of $ 131 million ( 2018 : $ 156 million).

INCOME TAX EXPENSE (Tables)

INCOME TAX EXPENSE (Tables)	12 Months Ended
	Dec. 31, 2019
Income Tax [Abstract]
Schedule of components of income tax expense (recovery)	For the years ended December 31 2019 2018 Tax on profit Current tax Charge for the year $685 $423 Adjustment in respect of prior years 25 45 $710 $468 Deferred tax Origination and reversal of temporary differences in the current year $1,112 $821 Adjustment in respect of prior years (39 ) (91 ) $1,073 $730 Income tax expense $1,783 $1,198 Tax expense related to continuing operations Current Canada $5 $— International 705 468 $710 $468 Deferred Canada $— $628 International 1,073 102 $1,073 $730 Income tax expense $1,783 $1,198
Reconciliation to Canadian statutory rate	Reconciliation to Canadian Statutory Rate For the years ended December 31 2019 2018 At 26.5% statutory rate $1,684 ($63 ) Increase (decrease) due to: Allowances and special tax deductions 1 (129 ) (59 ) Impact of foreign tax rates 2 (264 ) (4 ) Expenses not tax deductible 78 74 Impairment charges not recognized in deferred tax assets 45 168 Goodwill impairment charges not tax deductible — 54 Net currency translation losses on deferred tax balances 43 41 Tax impact from pass-through entities and equity accounted investments (140 ) (15 ) Current year tax losses not recognized in deferred tax assets 8 100 Sale of 50% interest in Kalgoorlie 12 — De-recognition of deferred tax assets 4 814 United States adjustment to one-time toll charge — (49 ) Adjustments in respect of prior years (13 ) 3 Increase to income tax related contingent liabilities 21 — Impact of tax rate changes (35 ) — Dominican Republic tax audit — 42 United States withholding taxes 30 (107 ) Other withholding taxes 24 14 Mining taxes 412 184 Other items 3 1 Income tax expense $1,783 $1,198 1 We are able to claim certain allowances and tax deductions unique to extractive industries that result in a lower effective tax rate. 2 We operate in multiple foreign tax jurisdictions that have tax rates different than the Canadian statutory rate

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	12 Months Ended
	Dec. 31, 2019
Earnings per share [abstract]
Earnings (loss) per share	For the years ended December 31 ($ millions, except shares in millions and per share amounts in dollars) 2019 2018 Basic Diluted Basic Diluted Net (loss) income $4,574 $4,574 ($1,435 ) ($1,435 ) Net income attributable to non-controlling interests (605 ) (605 ) (110 ) (110 ) Net (loss) income attributable to the equity holders of Barrick Gold Corporation $3,969 $3,969 ($1,545 ) ($1,545 ) Weighted average shares outstanding 1,758 1,758 1,167 1,167 Basic and diluted earnings (loss) per share data attributable to the equity holders of Barrick Gold Corporation $2.26 $2.26 ($1.32 ) ($1.32 )

FINANCE COSTS, NET (Tables)

FINANCE COSTS, NET (Tables)	12 Months Ended
	Dec. 31, 2019
Finance Costs [Abstract]
Financing costs, net	For the years ended December 31 2019 2018 Interest 1 $435 $452 Amortization of debt issue costs 2 5 Amortization of discount (premium) (1 ) (1 ) Interest on lease liabilities 6 — Gain on interest rate hedges (6 ) (3 ) Interest capitalized 2 (14 ) (9 ) Accretion 75 87 Loss on debt extinguishment 3 3 29 Finance income (31 ) (15 ) Total $469 $545 1 Interest in the consolidated statements of cash flow is presented on a cash basis. In 2019 , cash interest paid was $333 million ( 2018 : $350 million). 2 For the year ended December 31, 2019 , the general capitalization rate was 6.30% ( 2018 : 6.10% ). 3 2018 loss arose from a make-whole repurchase of the outstanding principal on the 4.40% notes due 2021.

CASH FLOW _ OTHER ITEMS (Tables

CASH FLOW – OTHER ITEMS (Tables)	12 Months Ended
	Dec. 31, 2019
Cash Flow Statement [Abstract]
Cash flow - other items	Operating Cash Flows - Other Items For the years ended December 31 2019 2018 Adjustments for non-cash income statement items: Stock-based compensation expense $71 $33 Income from investment in equity investees (note 16) (165 ) (46 ) Increase (decrease) in estimate of rehabilitation costs at closed mines 5 (13 ) Net inventory impairment charges (note 17) 26 199 Remeasurement of silver sale liability (note 29) (628 ) — Lumwana tax settlement (note 3) (216 ) — Change in other assets and liabilities (113 ) (169 ) Settlement of rehabilitation obligations (93 ) (66 ) Other operating activities ($1,113 ) ($62 ) Cash flow arising from changes in: Accounts receivable ($118 ) ($9 ) Inventory 9 (111 ) Other current assets (89 ) (109 ) Accounts payable (108 ) 19 Other current liabilities (51 ) 37 Change in working capital ($357 ) ($173 ) Investing Cash Flows – Other Items For the years ended December 31 2019 2018 Dividends received from equity method investments (note 16) $ 125 $ — Shareholder loan repayments from equity method investments 92 — Funding of equity method investments (note 16) (2 ) (5 ) Other (2 ) — Other investing activities $ 213 $ (5 )

INVESTMENTS (Tables)

INVESTMENTS (Tables)	12 Months Ended
	Dec. 31, 2019
Interests In Other Entities [Abstract]
Investments	Outlined below is information related to our joint arrangements and entities other than 100% owned Barrick subsidiaries at December 31, 2019 : Place of business Entity type Economic interest 1 Method 2 Nevada Gold Mines 3,4,5,6,7 United States Subsidiary 61.5% Consolidation Loulo-Gounkoto 3 Mali Subsidiary 80% Consolidation Tongon 3 Côte d’Ivoire Subsidiary 89.7% Consolidation Pueblo Viejo 3 Dominican Republic Subsidiary 60% Consolidation Norte Abierto Project Chile JO 50% Our share Donlin Gold Project United States JO 50% Our share Porgera Mine 8 Papua New Guinea JO 47.5% Our share Veladero Argentina JO 50% Our share Kibali 9 Democratic Republic of Congo JV 45% Equity Method Morila 9 Mali JV 40% Equity Method GNX 9,10 Chile JV 50% Equity Method Jabal Sayid 9 Saudi Arabia JV 50% Equity Method Kabanga Project 9,10 Tanzania JV 50% Equity Method Zaldívar 9 Chile JV 50% Equity Method 1 Unless otherwise noted, all of our joint arrangements are funded by contributions made by the parties sharing joint control in proportion to their economic interest. 2 For our JOs, we recognize our share of any assets, liabilities, revenues and expenses of the JO. 3 We consolidate our interests in Carlin, Cortez, Turquoise Ridge, Phoenix, Long Canyon, Loulo-Gounkoto, Tongon and Pueblo Viejo and record a non-controlling interest for the 38.5% , 38.5% , 38.5% , 38.5% , 38.5% , 20% , 10.3% and 40% , respectively, that we do not own. On September 17, 2019, Barrick acquired all of the shares of Acacia it did not own, bringing our ownership from 63.9% to 100% . When the Government of Tanzania’s 16% free-carried interest is made effective, which is expected to be as of January 1, 2020, our ownership will be brought down to 84% . 4 On July 1, 2019, Barrick’s Goldstrike (including 60% of South Arturo) and Newmont’s Carlin were contributed to Nevada Gold Mines, a joint venture with Newmont, and are now referred to as Carlin. This brought our ownership to 61.5% of Carlin (including 36.9% of South Arturo). 5 On July 1, 2019, Cortez was contributed to Nevada Gold Mines bringing our ownership down to 61.5% . 6 Barrick owned 75% of Turquoise Ridge through to the end of the second quarter of 2019, with our joint venture partner, Newmont, owning the remaining 25% . Turquoise Ridge was proportionately consolidated on the basis that the joint venture partners that have joint control have rights to the assets and obligations for the liabilities relating to the arrangement. On July 1, 2019, Barrick’s 75% interest in Turquoise Ridge and Newmont’s Twin Creeks and 25% interest in Turquoise Ridge were contributed to Nevada Gold Mines. This brought our ownership to 61.5% of Turquoise Ridge and Twin Creeks, now referred to as Turquoise Ridge. 7 Phoenix and Long Canyon were acquired as a result of the formation of Nevada Gold Mines on July 1, 2019, resulting in an ownership of 61.5% . 8 We have joint control given that decisions about relevant activities require unanimous consent of the parties to the joint operation. 9 Barrick has commitments of $324 million relating to its interest in the joint ventures. 10 These JVs are early stage exploration projects and, as such, do not have any significant assets, liabilities, income, contractual commitments or contingencies. Equity Accounting Method Investment Continuity Kibali Jabal Sayid Zaldívar Other Total At January 1, 2018 $— $206 $975 $32 $1,213 Equity pick-up (loss) from equity investees — 39 14 (7 ) 46 Funds invested — — — 5 5 Impairment charges — — — (30 ) (30 ) At December 31, 2018 $— $245 $989 $— $1,234 Acquisitions 3,195 — — 58 3,253 Equity pick-up from equity investees 98 51 16 — 165 Funds invested — — — 2 2 Dividends paid (75 ) — (50 ) — (125 ) Shareholder loan repayment — — — (2 ) (2 ) At December 31, 2019 $3,218 $296 $955 $58 $4,527 Summarized Equity Investee Financial Information Kibali Jabal Sayid Zaldívar For the years ended December 31 2019 2018 2019 2018 2019 2018 Revenue $1,123 $— $315 $296 $685 $599 Cost of sales (excluding depreciation) 460 — 133 158 442 404 Depreciation 435 — 53 39 172 118 Finance expense — — 1 2 12 — Other expense (income) 18 — (2 ) 9 10 25 Income from continuing operations before tax $210 $— $130 $88 $49 $52 Income tax expense (16 ) — (27 ) (10 ) (17 ) (24 ) Income from continuing operations after tax $194 $— $103 $78 $32 $28 Total comprehensive income $194 $— $103 $78 $32 $28 Summarized Balance Sheet Kibali Jabal Sayid Zaldívar For the years ended December 31 2019 2018 2019 2018 2019 2018 Cash and equivalents $453 $— $43 $128 $139 $129 Other current assets 1 338 — 67 68 632 602 Total current assets $791 $— $110 $196 $771 $731 Non-current assets 4,623 — 464 482 1,823 1,927 Total assets $5,414 $— $574 $678 $2,594 $2,658 Current financial liabilities (excluding trade, other payables & provisions) $11 $— $— $48 $19 $18 Other current liabilities 35 — 63 41 99 85 Total current liabilities $46 $— $63 $89 $118 $103 Non-current financial liabilities (excluding trade, other payables & provisions) 44 — 150 331 11 12 Other non-current liabilities 648 — 14 14 536 546 Total non-current liabilities $692 $— $164 $345 $547 $558 Total liabilities $738 $— $227 $434 $665 $661 Net assets $4,676 $— $347 $244 $1,929 $1,997 1 Zaldívar other current assets include inventory of $ 543 million ( 2018 : $ 533 million). The information above reflects the amounts presented in the financial information of the joint venture adjusted for differences between IFRS and local GAAP. Reconciliation of Summarized Financial Information to Carrying Value Kibali Jabal Sayid 1 Zaldívar Opening net assets $— $244 $1,997 Acquisition 4,632 — — Income for the period 194 103 32 Dividend (150 ) — (100 ) Closing net assets, December 31 $4,676 $347 $1,929 Barrick's share of net assets 2,107 173 965 Equity earnings adjustment — — (10 ) Goodwill recognition 1,111 123 — Carrying value $3,218 $296 $955 1 A $75 million non-interest bearing shareholder loan due from the Jabal Sayid JV is presented as part of Other Assets (refer to note 22).

INVENTORIES (Tables)

INVENTORIES (Tables)	12 Months Ended
	Dec. 31, 2019
Inventories [Abstract]
Inventories and inventory impairment charges	Gold Copper As at December 31, 2019 As at December 31, 2018 As at December 31, 2019 As at December 31, 2018 Raw materials Ore in stockpiles $2,794 $2,106 $155 $151 Ore on leach pads 507 405 — — Mine operating supplies 617 496 52 66 Work in process 141 146 — — Finished products 220 176 103 2 $4,279 $3,329 $310 $219 Non-current ore in stockpiles 1 (2,300 ) (1,696 ) — — $1,979 $1,633 $310 $219 1 Ore that we do not expect to process in the next 12 months is classified within other long-term assets. Inventory Impairment Charges For the years ended December 31 2019 2018 Pierina $12 $4 Carlin 6 — Cortez 4 — Golden Sunlight 4 10 Lagunas Norte — 166 Lumwana — 18 Porgera — 1 Inventory impairment charges 1 $26 $199 1 Impairment charges in 2018 primarily relate to stockpiles at Lagunas Norte (refer to note 21). Ore in Stockpiles As at December 31, 2019 As at December 31, 2018 Gold Carlin $1,136 $841 Pueblo Viejo 649 603 Turquoise Ridge 258 13 Cortez 174 242 Loulo-Gounkoto 167 — North Mara 136 70 Lagunas Norte 73 49 Veladero 52 39 Buzwagi 47 83 Phoenix 39 — Porgera 33 37 Tongon 29 — Kalgoorlie — 125 Other 1 4 Copper Lumwana 155 151 $2,949 $2,257 Ore on Leach pads As at December 31, 2019 As at December 31, 2018 Gold Lagunas Norte $148 $168 Veladero 123 138 Carlin 64 — Cortez 50 81 Phoenix 44 — Long Canyon 43 — Turquoise Ridge 33 — Pierina 2 18 $507 $405

ACCOUNTS RECEIVABLE AND OTHER_2

ACCOUNTS RECEIVABLE AND OTHER CURRENT ASSETS (Tables)	12 Months Ended
	Dec. 31, 2019
Subclassifications of assets, liabilities and equities [abstract]
Accounts receivables and other current assets	As at December 31, 2019 As at December 31, 2018 Accounts receivable Amounts due from concentrate sales $68 $76 Other receivables 295 172 $363 $248 Other current assets Derivative assets $1 $2 Goods and services taxes recoverable 1 302 182 Prepaid expenses 174 72 Other 2 88 51 $565 $307 1 Primarily includes VAT and fuel tax recoverables of $141 million in Mali, $61 million in Tanzania, $50 million in Zambia, $26 million in Argentina, and $10 million in the Dominican Republic ( Dec. 31, 2018 : $ nil , $67 million , $60 million , $22 million , and $12 million , respectively).

PROPERTY, PLANT AND EQUIPMENT (

PROPERTY, PLANT AND EQUIPMENT (Tables)	12 Months Ended
	Dec. 31, 2019
Property, plant and equipment [abstract]
Property, plant and equipment	Estimated useful lives of Major Asset Categories Buildings, plant and equipment 1 – 28 years Underground mobile equipment 5 - 7 years Light vehicles and other mobile equipment 1 - 7 years Furniture, computer and office equipment 1 - 7 years PROPERTY, PLANT AND EQUIPMENT Buildings, plant and equipment 1 Mining property costs subject to depreciation 2,4 Mining property costs not subject to depreciation 2,3 Total At January 1, 2019 Net of accumulated depreciation $3,600 $6,258 $2,968 $12,826 Additions 5,6 298 3,458 1,371 5,127 Capitalized interest — — 14 14 Acquisitions 8 3,473 2,270 1,660 7,403 Divestiture 9 (127 ) (106 ) (27 ) (260 ) Disposals (22 ) — — (22 ) Depreciation (1,107 ) (907 ) — (2,014 ) Impairment reversals (charges) 990 742 (309 ) 1,423 Transfers 7 648 573 (1,221 ) — Assets held for sale — — (356 ) (356 ) At December 31, 2019 $7,753 $12,288 $4,100 $24,141 At December 31, 2019 Cost $18,544 $27,268 $16,050 $61,862 Accumulated depreciation and impairments (10,791 ) (14,980 ) (11,950 ) (37,721 ) Net carrying amount – December 31, 2019 $7,753 $12,288 $4,100 $24,141 Buildings, plant and equipment 1 Mining property costs subject to depreciation 2,4 Mining property costs not subject to depreciation 2,3 Total At January 1, 2018 Cost $14,209 $20,938 $14,637 $49,784 Accumulated depreciation and impairments (9,996 ) (14,416 ) (11,566 ) (35,978 ) Net carrying amount – January 1, 2018 $4,213 $6,522 $3,071 $13,806 Additions 6 (21 ) 199 1,050 1,228 Capitalized interest — — 9 9 Disposals (7 ) — — (7 ) Depreciation (790 ) (772 ) — (1,562 ) Impairment reversals (charges) (394 ) (178 ) (76 ) (648 ) Transfers 7 599 487 (1,086 ) — At December 31, 2018 $3,600 $6,258 $2,968 $12,826 At December 31, 2018 Cost $14,750 $21,624 $14,610 $50,984 Accumulated depreciation and impairments (11,150 ) (15,366 ) (11,642 ) (38,158 ) Net carrying amount – December 31, 2018 $3,600 $6,258 $2,968 $12,826 1 Additions include $85 million of transitional adjustments for the recognition of leased right-of-use assets upon the Company’s adoption of IFRS 16 on January 1, 2019 (refer to note 2), as well as $ 49 million of right-of-use assets for lease arrangements entered into during the year ended December 31, 2019. Depreciation includes depreciation for leased right-of-use assets of $ 25 million for the year ended December 31, 2019 . The net carrying amount of leased right-of-use assets was $ 75 million as at December 31, 2019 . 2 Includes capitalized reserve acquisition costs, capitalized development costs and capitalized exploration and evaluation costs other than exploration license costs included in intangible assets. 3 Assets not subject to depreciation include construction-in-progress, projects and acquired mineral resources and exploration potential at operating minesites and development projects. 4 Assets subject to depreciation include the following items for production stage properties: acquired mineral reserves and resources, capitalized mine development costs, capitalized stripping and capitalized exploration and evaluation costs. 5 Additions include $3,422 million of remeasurement gain related to the change in ownership of Turquoise Ridge acquired though the Nevada Joint Venture. Refer to note 4 for further details. 6 Additions include revisions to the capitalized cost of closure and rehabilitation activities. 7 Primarily relates to long-lived assets that are transferred between categories within PP&E once they are placed into service. 8 Acquisitions include assets acquired as part of the Merger and the establishment of Nevada Gold Mines. Refer to note 4 for further details. 9 Relates to the sale of our 50% interest in Kalgoorlie. Refer to note 4 for further details. Mineral Property Costs Not Subject to Depreciation Carrying amount at Dec. 31, 2019 Carrying amount at Dec. 31, 2018 Construction-in-progress 1 $1,009 $786 Acquired mineral resources and exploration potential 1,504 124 Projects Pascua-Lama 754 1,245 Norte Abierto 649 639 Donlin Gold 184 174 $4,100 $2,968 1 Represents assets under construction at our operating minesites.

GOODWILL AND OTHER INTANGIBLE_2

GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)	12 Months Ended
	Dec. 31, 2019
Goodwill and Other Intangible Assets [Abstract]
Intangible assets	Intangible Assets Water rights 1 Technology 2 Supply contracts 3 Exploration potential 4 Total Opening balance January 1, 2018 $71 $9 $11 $164 $255 Amortization and impairment losses 5 — (1 ) (3 ) (24 ) (28 ) Closing balance December 31, 2018 $71 $8 $8 $140 $227 Additions 1 — — — 1 Amortization — (1 ) (1 ) — (2 ) Closing balance December 31, 2019 $72 $7 $7 $140 $226 Cost $72 $17 $39 $298 $426 Accumulated amortization and impairment losses — (10 ) (32 ) (158 ) (200 ) Net carrying amount December 31, 2019 $72 $7 $7 $140 $226 1 Relates to water rights in South America, and will be amortized through cost of sales when we begin using these in the future. 2 The amount is amortized through cost of sales using the UOP method over LOM ounces of the Pueblo Viejo mine, with no assumed residual value. 3 Relates to a supply agreement with Michelin North America Inc. to secure a supply of tires and is amortized over the effective term of the contract through cost of sales. 4 Exploration potential consists of the estimated fair value attributable to exploration licenses acquired as a result of a business combination or asset acquisition. The carrying value of the licenses will be transferred to PP&E when the development of attributable mineral resources commences. 5
Goodwill	Closing balance December 31, 2018 Additions Disposals Closing balance December 31, 2019 Carlin $— $1,294 $— $1,294 Cortez 514 210 — 724 Turquoise Ridge 528 194 — 722 Phoenix — 119 — 119 Goldrush — 175 — 175 Hemlo 63 — — 63 Kalgoorlie 71 — (71 ) — Loulo-Gounkoto — 1,672 — 1,672 Total $1,176 $3,664 ($71 ) $4,769 On a total basis, the gross amount and accumulated impairment losses are as follows: Cost $12,211 Accumulated impairment losses December 31, 2019 (7,442 ) Net carrying amount December 31, 2019 $4,769

IMPAIRMENT AND REVERSAL OF NO_2

IMPAIRMENT AND REVERSAL OF NON-CURRENT ASSETS (Tables)	12 Months Ended
	Dec. 31, 2019
Impairment Of Assets [Abstract]
Disclosure of impairment loss and reversal of impairment loss	For the years ended December 31 2019 2018 Impairment charges (reversals) of long-lived assets 1 ($1,423 ) $722 Impairment of intangibles 1 — 24 Impairment of goodwill 1 — 154 Total ($1,423 ) $900 1 Refer to note 21 for further details. The other key assumptions used in our impairment testing, based on the CGUs tested in each year, are summarized in the table below: 2019 2018 Copper price per lb (long-term) $3.00 $2.85 WACC - gold (range) 3%-7% 4%-11% WACC - gold (avg) 4 % 7 % WACC - copper n/a 10 % NAV multiple - gold (avg) 1.2 1.05 LOM years - gold (avg) 19 15 Value per ounce of gold $20 - $30 n/a Value per ounce of silver $0.28 - $0.42 n/a The carrying value of the CGUs that are most sensitive to changes in the key assumptions used in the FVLCD calculation are: As at December 31, 2019 Carrying Value Loulo-Gounkoto $4,198 Lumwana 1,307 Veladero 692 Bulyanhulu 579 Pascua-Lama 1 153 1 The carrying value of Pascua-Lama is presented net of the Wheaton streaming liability of $253 million (refer to note 29). For the year ended December 31, 2019 , we recorded net impairment reversals of $1,423 million ( 2018 : impairment losses of $746 million ) for non-current assets and impairment charges of $ nil ( 2018 : $154 million ) for goodwill, as summarized in the following table: For the years ended December 31 2019 2018 Lumwana ($947 ) $— Pueblo Viejo (865 ) — Pascua-Lama 296 (7 ) Cortez 57 9 Lagunas Norte 12 405 Golden Sunlight 9 — Veladero 3 246 Carlin 2 5 Equity method investments — 30 Acacia exploration sites — 24 Other 10 34 Total impairment (reversals) losses of long-lived assets ($1,423 ) $746 Veladero goodwill — 154 Total goodwill impairment losses $— $154 Total impairment (reversals) losses ($1,423 ) $900

OTHER ASSETS (Tables)

OTHER ASSETS (Tables)	12 Months Ended
	Dec. 31, 2019
Subclassifications of assets, liabilities and equities [abstract]
Other assets	As at December 31, 2019 As at December 31, 2018 Goods and services taxes recoverable 1 $253 $271 Other investments 258 209 Notes receivable 2 202 285 Norte Abierto JV partner receivable 134 143 Restricted cash 3 162 121 Carlin prepaid royalty 115 — Prepayments 30 37 Derivative assets — 1 Other 153 168 $1,307 $1,235 1 Includes VAT and fuel tax receivables of $ 70 million in Argentina, $ 128 million in Tanzania and $ 53 million in Chile ( Dec. 31, 2018 : $ 110 million, $ 111 million and $ 50 million, respectively). 2 Primarily represents the interest bearing promissory note due from NovaGold and the non-interest bearing shareholder loan due from the Jabal Sayid JV as a result of the divestment of 50 percent interest in Jabal Sayid. 3 Primarily represents the cash balance at Pueblo Viejo that is contractually restricted in respect of disbursements for environmental rehabilitation that are expected to occur near the end of Pueblo Viejo’s mine life.

ACCOUNTS PAYABLE (Tables)

ACCOUNTS PAYABLE (Tables)	12 Months Ended
	Dec. 31, 2019
Subclassifications of assets, liabilities and equities [abstract]
Accounts payable	As at December 31, 2019 As at December 31, 2018 Accounts payable $715 $744 Accruals 440 357 $1,155 $1,101

OTHER CURRENT LIABILITIES (Tabl

OTHER CURRENT LIABILITIES (Tables)	12 Months Ended
	Dec. 31, 2019
Subclassifications of assets, liabilities and equities [abstract]
Other current liabilities	As at December 31, 2019 As at December 31, 2018 Provision for environmental rehabilitation (note 27b) $156 $111 Deposit on Pascua-Lama silver sale agreement 1 253 — Deposit on Pueblo Viejo gold and silver streaming agreement 75 83 Share-based payments (note 34b) 48 30 Derivative liabilities — 3 Other 90 94 $622 $321 1 Reclassified from other non-current liabilities. Refer to note 29.

FINANCIAL INSTRUMENTS (Tables)

FINANCIAL INSTRUMENTS (Tables)	12 Months Ended
	Dec. 31, 2019
Financial Instruments [Abstract]
Cash and equivalents	As at December 31, 2019 As at December 31, 2018 Cash deposits $2,571 $842 Term deposits 728 477 Money market investments 15 252 $3,314 $1,571
Debt and interest	Closing balance December 31, 2018 Proceeds Repayments Amortization and other 2 Closing balance December 31, 2019 5.7% notes 3,9 $842 $— $— $— $842 3.85%/5.25% notes 1,079 — — — 1,079 5.80% notes 4,9 395 — — — 395 6.35% notes 5,9 594 — — — 594 Other fixed rate notes 6,9 1,326 — (248 ) 2 1,080 Leases 7 19 — (28 ) 105 96 Other debt obligations 598 — (4 ) — 594 5.75% notes 8,9 842 — — — 842 Acacia credit facility 10 43 — (29 ) — 14 $5,738 $— ($309 ) $107 $5,536 Less: current portion 11 (43 ) — — — (375 ) $5,695 $— ($309 ) $107 $5,161 Closing balance December 31, 2017 Proceeds Repayments Amortization and other 2 Closing balance December 31, 2018 4.4%/5.7% notes 3,9 $1,468 $— ($629 ) $3 $842 3.85%/5.25% notes 1,079 — — — 1,079 5.80% notes 4,9 395 — — — 395 6.35% notes 5,9 593 — — 1 594 Other fixed rate notes 6,9 1,326 — — — 1,326 Leases 7 46 — (27 ) — 19 Other debt obligations 603 — (3 ) (2 ) 598 5.75% notes 8,9 842 — — — 842 Acacia credit facility 10 71 — (28 ) — 43 $6,423 $— ($687 ) $2 $5,738 Less: current portion 11 (59 ) — — — (43 ) $6,364 $— ($687 ) $2 $5,695 1 The agreements that govern our long-term debt each contain various provisions which are not summarized herein. These provisions allow Barrick, at its option, to redeem indebtedness prior to maturity at specified prices and also may permit redemption of debt by Barrick upon the occurrence of certain specified changes in tax legislation. 2 Amortization of debt premium/discount and increases (decreases) in capital leases. 3 Consists of $ 850 million ( 2018 : $ 850 million) of our wholly-owned subsidiary Barrick North America Finance LLC (“BNAF”) notes due 2041. 4 Consists of $ 400 million ( 2018 : $ 400 million) of 5.80 % notes which mature in 2034. 5 Consists of $ 600 million ( 2018 : $ 600 million) of 6.35 % notes which mature in 2036. 6 Consists of $ 1.1 billion ( 2018 : $ 1.3 billion) in conjunction with our wholly-owned subsidiary BNAF and our wholly-owned subsidiary Barrick (PD) Australia Finance Pty Ltd. (“BPDAF”). This consists of $ nil ( 2018 : $ 248 million) of BPDAF notes due 2020, $ 250 million ( 2018 : $ 250 million) of BNAF notes due 2038 and $ 850 million ( 2018 : $ 850 million) of BPDAF notes due 2039. 7 Consists primarily of leases at Nevada Gold Mines, $32 million , Loulo-Gounkoto, $ 32 million , Lumwana, $10 million , Pascua-Lama, $ 6 million and Porgera, $ 5 million ( 2018 : $ nil , $ nil , $3 million , $ 9 million and $ nil , respectively). 8 Consists of $850 million ( 2018 : $850 million ) in conjunction with our wholly-owned subsidiary BNAF. 9 We provide an unconditional and irrevocable guarantee on all BNAF, BPDAF, Barrick Gold Finance Company (“BGFC”), and Barrick (HMC) Mining (“BHMC”) notes and generally provide such guarantees on all BNAF, BPDAF, BGFC, and BHMC notes issued, which will rank equally with our other unsecured and unsubordinated obligations. 10 Consists of an export credit backed term loan facility. 11 The current portion of long-term debt consists of our 3.85 % notes ($ 336 million; 2018 : $ nil ), leases ($ 25 million; 2018 : $ 11 million) and Acacia credit facility ($ 14 million; 2018 : $ 28 million), and other debt obligations ($ nil ; 2018 : $ 4 million). 2019 2018 For the years ended December 31 Interest cost Effective rate 1 Interest cost Effective rate 1 4.4%/5.7% notes $49 5.74 % $63 5.25 % 3.85%/5.25% notes 53 4.87 % 53 4.87 % 5.80% notes 23 5.87 % 23 5.85 % 6.35% notes 38 6.41 % 39 6.41 % Other fixed rate notes 77 6.33 % 83 6.16 % Leases 6 7.14 % 2 6.18 % Other debt obligations 34 6.17 % 38 6.55 % 5.75% notes 49 5.79 % 49 5.79 % Acacia credit facility 3 3.36 % 5 3.59 % Deposits on Pascua-Lama silver sale agreement (note 29) 70 8.75 % 65 8.25 % Deposits on Pueblo Viejo gold and silver streaming agreement (note 29) 34 6.79 % 33 6.41 % $436 $453 Less: interest capitalized (14 ) (9 ) $422 $444 1 The effective rate includes the stated interest rate under the debt agreement, amortization of debt issue costs and debt discount/premium and the impact of interest rate contracts designated in a hedging relationship with debt.
Scheduled debt repayments	Issuer Maturity Year 2020 2021 2022 2023 2024 2025 and thereafter Total 7.31% notes 2 BGC 2021 $— $7 $— $— $— $— $7 3.85% notes BGC 2022 — — 337 — — — 337 7.73% notes 2 BGC 2025 — — — — — 7 7 7.70% notes 2 BGC 2025 — — — — — 5 5 7.37% notes 2 BGC 2026 — — — — — 32 32 8.05% notes 2 BGC 2026 — — — — — 15 15 6.38% notes 2 BGC 2033 — — — — — 200 200 5.80% notes BGC 2034 — — — — — 200 200 5.80% notes BGFC 2034 — — — — — 200 200 6.45% notes 2 BGC 2035 — — — — — 300 300 6.35% notes BHMC 2036 — — — — — 600 600 7.50% notes 3 BNAF 2038 — — — — — 250 250 5.95% notes 3 BPDAF 2039 — — — — — 850 850 5.70% notes BNAF 2041 — — — — — 850 850 5.25% notes BGC 2042 — — — — — 750 750 5.75% notes BNAF 2043 — — — — — 850 850 Other debt obligations 2 — — — — — — — Acacia credit facility 14 — — — — — 14 $14 $7 $337 $— $— $5,109 $5,467 Minimum annual payments under leases $25 $15 $12 $8 $5 $32 $97 1 This table illustrates the contractual undiscounted cash flows, and may not agree with the amounts disclosed in the consolidated balance sheet. 2 Included in Other debt obligations in the Long-Term Debt table. 3 Included in Other fixed rate notes in the Long-Term Debt table.
Market risks	In the normal course of business, our assets, liabilities and forecasted transactions, as reported in US dollars, are impacted by various market risks including, but not limited to: Item Impacted by ● Revenue ● Prices of gold, silver and copper ● Cost of sales o Consumption of diesel fuel, propane, natural gas, and electricity o Prices of diesel fuel, propane, natural gas, and electricity o Non-US dollar expenditures o Currency exchange rates - US dollar versus A$, ARS, C$, CLP, DOP, EUR, PGK, TZS, ZAR, XOF, and ZMW ● General and administration, exploration and evaluation costs ● Currency exchange rates - US dollar versus A$, ARS, C$, CLP, DOP, GBP, PGK, TZS, XOF, ZAR, and ZMW ● Capital expenditures o Non-US dollar capital expenditures o Currency exchange rates - US dollar versus A$, ARS, C$, CLP, DOP, EUR, GBP, PGK, XOF, and ZAR o Consumption of steel o Price of steel ● Interest earned on cash and equivalents ● US dollar interest rates ● Interest paid on fixed-rate borrowings ● US dollar interest rates

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	12 Months Ended
	Dec. 31, 2019
Fair Value Measurements [Abstract]
Disclosure of fair value measurement of liabilities	At December 31, 2019 At December 31, 2018 Carrying amount Estimated fair value Carrying amount Estimated fair value Financial assets Other assets 1 $612 $612 $559 $559 Other investments 2 258 258 209 209 Derivative assets 1 1 3 3 $871 $871 $771 $771 Financial liabilities Debt 3 $5,536 $6,854 $5,738 $6,183 Derivative liabilities — — 3 3 Other liabilities 209 209 297 297 $5,745 $7,063 $6,038 $6,483 1 Includes restricted cash and amounts due from our partners. 2 Recorded at fair value. Quoted market prices are used to determine fair value. 3 Debt is generally recorded at amortized cost except for obligations that are designated in a fair-value hedge relationship, in which case the carrying amount is adjusted for changes in fair value of the hedging instrument in periods when a hedge relationship exists. The fair value of debt is primarily determined using quoted market prices. Balance includes both current and long-term portions of debt. Fair Value Measurements At December 31, 2019 Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Aggregate Fair Value (Level 1) (Level 2) (Level 3) Cash and equivalents $3,314 $— $— $3,314 Other investments 258 — — 258 Derivatives — 1 — 1 Receivables from provisional copper and gold sales — 68 — 68 $3,572 $69 $— $3,641 Fair Value Measurements At December 31, 2018 Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Aggregate Fair Value (Level 1) (Level 2) (Level 3) Cash and equivalents $1,571 $— $— $1,571 Other investments 209 — — 209 Derivatives — — — — Receivables from provisional copper and gold sales — 76 — 76 $1,780 $76 $— $1,856
Disclosure of fair value measurement of assets	At December 31, 2019 At December 31, 2018 Carrying amount Estimated fair value Carrying amount Estimated fair value Financial assets Other assets 1 $612 $612 $559 $559 Other investments 2 258 258 209 209 Derivative assets 1 1 3 3 $871 $871 $771 $771 Financial liabilities Debt 3 $5,536 $6,854 $5,738 $6,183 Derivative liabilities — — 3 3 Other liabilities 209 209 297 297 $5,745 $7,063 $6,038 $6,483 1 Includes restricted cash and amounts due from our partners. 2 Recorded at fair value. Quoted market prices are used to determine fair value. 3 Debt is generally recorded at amortized cost except for obligations that are designated in a fair-value hedge relationship, in which case the carrying amount is adjusted for changes in fair value of the hedging instrument in periods when a hedge relationship exists. The fair value of debt is primarily determined using quoted market prices. Balance includes both current and long-term portions of debt. Fair Value Measurements At December 31, 2019 Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Aggregate Fair Value (Level 1) (Level 2) (Level 3) Cash and equivalents $3,314 $— $— $3,314 Other investments 258 — — 258 Derivatives — 1 — 1 Receivables from provisional copper and gold sales — 68 — 68 $3,572 $69 $— $3,641 Fair Value Measurements At December 31, 2018 Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Aggregate Fair Value (Level 1) (Level 2) (Level 3) Cash and equivalents $1,571 $— $— $1,571 Other investments 209 — — 209 Derivatives — — — — Receivables from provisional copper and gold sales — 76 — 76 $1,780 $76 $— $1,856 Quoted prices in active markets for identical assets Significant other observable inputs Significant unobservable inputs Aggregate fair value (Level 1) (Level 2) (Level 3) Property, plant and equipment 1 — — 130 130 1 Property, plant and equipment were written down by $ 389 million, which was included in earnings in this period.

PROVISIONS (Tables)

PROVISIONS (Tables)	12 Months Ended
	Dec. 31, 2019
Other provisions [abstract]
Provisions	2019 2018 At January 1 $2,837 $3,096 PERs acquired (divested) during the year 425 — Closed Sites Impact of revisions to expected cash flows recorded in earnings (75 ) (30 ) Settlements Cash payments (72 ) (48 ) Settlement gains (3 ) (2 ) Accretion 18 13 Operating Sites PER revisions in the year (87 ) (247 ) Settlements Cash payments (21 ) (18 ) Settlement gains (1 ) (1 ) Accretion 57 74 At December 31 $3,078 $2,837 Current portion (note 24) (156 ) (111 ) $2,922 $2,726 As at December 31, 2019 As at December 31, 2018 Environmental rehabilitation (“PER”) $2,922 $2,726 Post-retirement benefits 43 42 Share-based payments 26 26 Other employee benefits 19 22 Other 104 88 $3,114 $2,904

FINANCIAL RISK MANAGEMENT (Tabl

FINANCIAL RISK MANAGEMENT (Tables)	12 Months Ended
	Dec. 31, 2019
Financial Instruments [Abstract]
Maximum exposure to credit risk	The Company’s maximum exposure to credit risk at the reporting date is the carrying value of each of the financial assets disclosed as follows: As at December 31, 2019 As at December 31, 2018 Cash and equivalents $3,314 $1,571 Accounts receivable 363 248 Net derivative assets by counterparty — 2 $3,677 $1,821
Expected maturity of significant financial assets and liabilities	The following table outlines the expected maturity of our significant financial assets and liabilities into relevant maturity groupings based on the remaining period from the balance sheet date to the contractual maturity date. As the amounts presented in the table are the contractual undiscounted cash flows, these balances may not agree with the amounts disclosed in the balance sheet. As at December 31, 2019 (in $ millions) Less than 1 year 1 to 3 years 3 to 5 years Over 5 years Total Cash and equivalents $3,314 $— $— $— $3,314 Accounts receivable 363 — — — 363 Derivative assets — — — — — Trade and other payables 1,155 — — — 1,155 Debt 39 371 13 5,141 5,564 Derivative liabilities — — — — — Other liabilities 55 52 9 93 209 As at December 31, 2018 (in $ millions) Less than 1 year 1 to 3 years 3 to 5 years Over 5 years Total Cash and equivalents $1,571 $— $— $— $1,571 Accounts receivable 248 — — — 248 Derivative assets 2 1 — — 3 Trade and other payables 1,101 — — — 1,101 Debt 43 275 339 5,110 5,767 Derivative liabilities 3 — — — 3 Other liabilities 59 80 21 137 297

OTHER NON-CURRENT LIABILITIES (

OTHER NON-CURRENT LIABILITIES (Tables)	12 Months Ended
	Dec. 31, 2019
Subclassifications of assets, liabilities and equities [abstract]
Other non-current liabilities	As at December 31, 2019 As at December 31, 2018 Deposit on Pascua-Lama silver sale agreement 1,2 $— $811 Deposit on Pueblo Viejo gold and silver streaming agreement 1 425 426 Long-term income tax payable 241 270 Derivative liabilities — — Provision for offsite remediation 52 57 Other 105 179 $823 $1,743

DEFERRED INCOME TAXES (Tables)

DEFERRED INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2019
Income Tax [Abstract]
Deferred income tax assets and liabilities	Source of Changes in Deferred Tax Balances For the years ended December 31 2019 2018 Temporary differences Property, plant and equipment ($1,851 ) ($15 ) Environmental rehabilitation 37 (302 ) Tax loss carry forwards (27 ) (389 ) AMT credits (10 ) — Inventory (42 ) 5 Derivatives — (74 ) Other 14 (26 ) ($1,879 ) ($801 ) Intraperiod allocation to: Income from continuing operations before income taxes ($1,073 ) ($730 ) Allocation to PPA (799 ) — Sale of 50% interest in Kalgoorlie 12 — Income tax payable (16 ) (38 ) Equity — (24 ) Other comprehensive income (3 ) (9 ) ($1,879 ) ($801 ) Income Tax Related Contingent Liabilities 2019 2018 At January 1 $306 $306 Net additions based on uncertain tax positions related to prior years 21 — At December 31 1 $327 $306 1 If reversed, the total amount of $327 million would be recognized as a benefit to income taxes on the income statement, and therefore would impact the reported effective tax rate. 2020 2021 2022 2023 2024+ No expiry date Total Non-capital tax losses 1 Argentina $— $50 $— $— $— $— $50 Barbados — — — 440 1,252 — 1,692 Canada — — — — 2,371 — 2,371 Chile — — — — — 992 992 Tanzania — — — — — 1,566 1,566 Zambia 12 259 — — — — 271 Other — — — — — 694 694 $12 $309 $— $440 $3,623 $3,252 $7,636 1 Represents the gross amount of tax loss carry forwards translated at closing exchange rates at December 31, 2019 . Deferred Tax Assets Not Recognized As at December 31, 2019 As at December 31, 2018 Argentina $103 $174 Australia 15 154 Barbados 17 40 Canada 1,097 1,087 Chile 1,074 1,028 Côte d'Ivoire 5 — Dominican Republic — — Mali 8 — Peru 329 310 Saudi Arabia 70 70 Tanzania 156 156 United States 1 — Zambia — 24 $2,875 $3,043 Sources of Deferred Income Tax Assets and Liabilities As at December 31, 2019 As at December 31, 2018 Deferred tax assets Tax loss carry forwards $511 $537 Alternative minimum tax (“AMT”) and other tax credits 28 37 Environmental rehabilitation 329 292 Post-retirement benefit obligations and other employee benefits 24 27 Accrued interest payable — 1 Other working capital 75 32 Other 11 12 $978 $938 Deferred tax liabilities Property, plant and equipment (3,263 ) (1,412 ) Inventory (545 ) (503 ) Accrued interest payable (26 ) — ($2,856 ) ($977 ) Classification: Non-current assets $235 $259 Non-current liabilities (3,091 ) (1,236 ) ($2,856 ) ($977 )
Tax years still under examination	Tax Years Still Under Examination Argentina 2010-2011, 2013-2019 Australia 2015-2019 Canada 2015-2019 Chile 2015-2019 Côte d'Ivoire 2018-2019 Democratic Republic of Congo 2019 Dominican Republic 2015-2019 Mali 2017-2019 Papua New Guinea 2006-2019 Peru 2013-2019 Saudi Arabia 2007-2019 Tanzania 2018-2019 United States 2019 Zambia 2018-2019

NON-CONTROLLING INTERESTS (Tabl

NON-CONTROLLING INTERESTS (Tables)	12 Months Ended
	Dec. 31, 2019
Interests In Other Entities [Abstract]
Non-controlling interests	Outlined below is information related to our joint arrangements and entities other than 100% owned Barrick subsidiaries at December 31, 2019 : Place of business Entity type Economic interest 1 Method 2 Nevada Gold Mines 3,4,5,6,7 United States Subsidiary 61.5% Consolidation Loulo-Gounkoto 3 Mali Subsidiary 80% Consolidation Tongon 3 Côte d’Ivoire Subsidiary 89.7% Consolidation Pueblo Viejo 3 Dominican Republic Subsidiary 60% Consolidation Norte Abierto Project Chile JO 50% Our share Donlin Gold Project United States JO 50% Our share Porgera Mine 8 Papua New Guinea JO 47.5% Our share Veladero Argentina JO 50% Our share Kibali 9 Democratic Republic of Congo JV 45% Equity Method Morila 9 Mali JV 40% Equity Method GNX 9,10 Chile JV 50% Equity Method Jabal Sayid 9 Saudi Arabia JV 50% Equity Method Kabanga Project 9,10 Tanzania JV 50% Equity Method Zaldívar 9 Chile JV 50% Equity Method 1 Unless otherwise noted, all of our joint arrangements are funded by contributions made by the parties sharing joint control in proportion to their economic interest. 2 For our JOs, we recognize our share of any assets, liabilities, revenues and expenses of the JO. 3 We consolidate our interests in Carlin, Cortez, Turquoise Ridge, Phoenix, Long Canyon, Loulo-Gounkoto, Tongon and Pueblo Viejo and record a non-controlling interest for the 38.5% , 38.5% , 38.5% , 38.5% , 38.5% , 20% , 10.3% and 40% , respectively, that we do not own. On September 17, 2019, Barrick acquired all of the shares of Acacia it did not own, bringing our ownership from 63.9% to 100% . When the Government of Tanzania’s 16% free-carried interest is made effective, which is expected to be as of January 1, 2020, our ownership will be brought down to 84% . 4 On July 1, 2019, Barrick’s Goldstrike (including 60% of South Arturo) and Newmont’s Carlin were contributed to Nevada Gold Mines, a joint venture with Newmont, and are now referred to as Carlin. This brought our ownership to 61.5% of Carlin (including 36.9% of South Arturo). 5 On July 1, 2019, Cortez was contributed to Nevada Gold Mines bringing our ownership down to 61.5% . 6 Barrick owned 75% of Turquoise Ridge through to the end of the second quarter of 2019, with our joint venture partner, Newmont, owning the remaining 25% . Turquoise Ridge was proportionately consolidated on the basis that the joint venture partners that have joint control have rights to the assets and obligations for the liabilities relating to the arrangement. On July 1, 2019, Barrick’s 75% interest in Turquoise Ridge and Newmont’s Twin Creeks and 25% interest in Turquoise Ridge were contributed to Nevada Gold Mines. This brought our ownership to 61.5% of Turquoise Ridge and Twin Creeks, now referred to as Turquoise Ridge. 7 Phoenix and Long Canyon were acquired as a result of the formation of Nevada Gold Mines on July 1, 2019, resulting in an ownership of 61.5% . 8 We have joint control given that decisions about relevant activities require unanimous consent of the parties to the joint operation. 9 Barrick has commitments of $324 million relating to its interest in the joint ventures. 10 These JVs are early stage exploration projects and, as such, do not have any significant assets, liabilities, income, contractual commitments or contingencies. Nevada Gold Mines Pueblo Viejo Acacia Loulo-Gounkoto Tongon Other Total NCI in subsidiary at December 31, 2019 38.5 % 40 % — % 20 % 10.3 % Various At January 1, 2018 $— $1,290 $480 $— $— $11 $1,781 Share of income (loss) — 89 22 — — (1 ) 110 Cash contributed — — — — — 24 24 Disbursements — (108 ) — — — (15 ) (123 ) At December 31, 2018 $— $1,271 $502 $— $— $19 $1,792 Acquisitions 1 5,910 — — 887 61 (76 ) 6,782 Share of income (loss) 275 311 (7 ) 30 (3 ) (1 ) 605 Cash contributed 90 — — — — 50 140 Decrease in non-controlling interest 1 — — (495 ) — — (495 ) Disbursements (236 ) (158 ) — (16 ) (11 ) (8 ) (429 ) At December 31, 2019 $6,039 $1,424 $— $901 $47 ($16 ) $8,395 Nevada Gold Mines 1 Pueblo Viejo Loulo-Gounkoto Tongon For the years ended December 31 2019 2018 2019 2018 2019 2018 2019 2018 Revenue $2,707 $— $1,409 $1,333 $1,007 $— $384 $— Income (loss) from continuing operations after tax 739 — 708 206 158 — (29 ) — Other comprehensive income (loss) — — — — — — — — Total comprehensive income (loss) $739 $— $708 $206 $158 $— ($29 ) $— Dividends paid to NCI $236 $— $158 $— $16 $— $11 $— Summarized Statements of Cash Flows Nevada Gold Mines 1 Pueblo Viejo Loulo-Gounkoto Tongon For the years ended December 31 2019 2018 2019 2018 2019 2018 2019 2018 Net cash provided by (used in) operating activities $1,296 $— $504 $272 $259 $— $129 $— Net cash used in investing activities (539 ) — (107 ) (144 ) (130 ) — 61 — Net cash used in financing activities (379 ) — (397 ) (108 ) (80 ) — (107 ) — Net increase (decrease) in cash and cash equivalents $378 $— $— $20 $49 $— $83 $— Nevada Gold Mines Pueblo Viejo Loulo-Gounkoto Tongon As at December 31, 2019 As at December 31, 2018 As at December 31, 2019 As at December 31, 2018 As at December 31, 2019 As at December 31, 2018 As at December 31, 2019 As at December 31, 2018 Current assets $10,977 $— $500 $520 $406 $— $158 $— Non-current assets 15,909 — 4,303 3,469 4,662 — 424 — Total assets $26,886 $— $4,803 $3,989 $5,068 $— $582 $— Current liabilities 466 — 428 720 234 — 59 — Non-current liabilities 1,217 — 932 402 634 — 106 — Total liabilities $1,683 $— $1,360 $1,122 $868 $— $165 $—

RELATED PARTY TRANSACTIONS (Tab

RELATED PARTY TRANSACTIONS (Tables)	12 Months Ended
	Dec. 31, 2019
Key Management Personnel [Abstract]
Compensation for key management personnel	Remuneration of Key Management Personnel Key management personnel include the members of the Board of Directors and the executive leadership team. Compensation for key management personnel (including Directors) was as follows: For the years ended December 31 2019 2018 Salaries and short-term employee benefits 1 $22 $19 Post-employment benefits 2 1 3 Termination Benefits — 1 Share-based payments and other 3 28 11 $51 $34 1 Includes annual salary and annual short-term incentives/other bonuses earned in the year. 2 Represents Company contributions to retirement savings plans. 3 Relates to DSU, RSU, PRSU and LTIP grants and other compensation.

STOCK-BASED COMPENSATION (Table

STOCK-BASED COMPENSATION (Tables)	12 Months Ended
	Dec. 31, 2019
Share-based Payment Arrangements [Abstract]
Other equity instruments activity	DSU and RSU Activity (Number of Units in Thousands) DSUs Fair value RSUs Fair value At January 1, 2018 725 $11.6 4,537 $37.7 Settled for cash (143 ) (1.9 ) (3,089 ) (34.6 ) Forfeited — — (731 ) (7.9 ) Granted 182 2.3 2,974 35.3 Credits for dividends — — 60 0.8 Change in value — (0.8 ) — 4.7 At December 31, 2018 764 $11.2 3,751 $36.0 Settled for cash (404 ) (6.5 ) (2,131 ) (30.7 ) Forfeited — — (1,157 ) (15.8 ) Granted 116 1.9 2,600 35.3 Credits for dividends — — 47 0.8 Change in value — 2.2 — 15.9 At December 31, 2019 476 $8.8 3,110 $41.5
Employee stock option activity	2019 2018 Shares Average Price Shares Average Price C$ options At January 1 0.3 $13 0.3 $13 Exercised (0.1 ) 16 — 10 At December 31 0.2 $10 0.3 $13 US$ options At January 1 0.5 $37 0.7 $40 Forfeited — — (0.1 ) 34 Cancelled/expired (0.4 ) 39 (0.1 ) 49 At December 31 0.1 $32 0.5 $37
Stock options outstanding	Outstanding Exercisable Range of exercise prices Shares Average price Average life (years) Intrinsic value 1 ($ millions) Shares Average price Intrinsic value 1 ($ millions) C$ options $9 - $17 0.2 $10 2.6 $2 0.2 $10 $2 US$ options $32 - $41 0.1 $32 0.1 $— 0.1 $32 $— 1 Based on the closing market share price on December 31, 2019 of C$ 24.12 and US$ 18.59 .
Stock options outstanding and exercisable	Outstanding Exercisable Range of exercise prices Shares Average price Average life (years) Intrinsic value 1 ($ millions) Shares Average price Intrinsic value 1 ($ millions) C$ options $9 - $17 0.2 $10 2.6 $2 0.2 $10 $2 US$ options $32 - $41 0.1 $32 0.1 $— 0.1 $32 $— 1 Based on the closing market share price on December 31, 2019 of C$ 24.12 and US$ 18.59 .

POST-RETIREMENT BENEFITS (Table

POST-RETIREMENT BENEFITS (Tables)	12 Months Ended
	Dec. 31, 2019
Employee Benefits [Abstract]
Post-employment amounts	The table below outlines where the Company’s post-employment amounts and activity are included in the financial statements: For the years ended December 31 2019 2018 Balance sheet obligations for: Defined pension benefits $39 $36 Other post-retirement benefits 4 6 Liability in the balance sheet $43 $42 Income statement charge included income statement for: Defined pension benefits $1 $1 Other post-retirement benefits — — $1 $1 Measurements for: Defined pension benefits ($5 ) ($4 ) Other post-retirement benefits 2 — ($3 ) ($4 ) The weighted average duration of the defined benefit obligation is 9 years ( 2018 : 14 years). Less than a year Between 1-2 years Between 2-5 years Over 5 years Total Pension benefits $7 $7 $22 $139 $175 Other post-retirement benefits 1 1 2 5 9 At December 31, 2018 $8 $8 $24 $144 $184 Pension benefits 27 7 20 95 149 Other post-retirement benefits — — 1 3 4 At December 31, 2019 $27 $7 $21 $98 $153 The amounts recognized in the balance sheet are determined as follows: For the years ended December 31 2019 2018 Present value of funded obligations $69 $57 Fair value of plan assets (76 ) (65 ) (Surplus) deficit of funded plans ($7 ) ($8 ) Present value of unfunded obligations 46 44 Total deficit of defined benefit pension plans $39 $36 Impact of minimum funding requirement/asset ceiling — — Liability in the balance sheet $39 $36
Significant actuarial assumptions	The significant actuarial assumptions were as follows: As at December 31 Pension Plans 2019 Other Post-Retirement Benefits 2019 Pension Plans 2018 Other Post-Retirement Benefits 2018 Discount rate 2.50%-3.30% 3.35 % 3.75-4.65% 4.45 %

SIGNIFICANT ACCOUNTING POLICI_4

SIGNIFICANT ACCOUNTING POLICIES - Joint Arrangements and Entities Other Than 100% Owned Barrick Subsidiaries (Details) - USD ($) $ in Millions	Jan. 01, 2020	Sep. 17, 2019	Dec. 31, 2019	Dec. 31, 2019	Jun. 30, 2019	Sep. 30, 2019	Sep. 16, 2019	Dec. 31, 2019	Jan. 01, 2019
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Statement that lessee accounts for short-term leases using recognition exemption								Payments associated with short-term leases and leases of low-value assets are recognized on a straight-line basis as an expense in profit or loss. Short-term leases are leases with a lease term of 12 months or less. Low-value assets are generally comprised of IT equipment and small items of office furniture.
Proportion of ownership interests held by non-controlling interests	16.00%
Weighted average lessee's incremental borrowing rate applied to lease liabilities recognised at date of initial application of IFRS 16									5.83%
Joint ventures
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Contractual obligation			$ 324	$ 324				$ 324
Turquoise Ridge
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Economic interest in joint venture					75.00%
Kibali [Member]
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Economic interest in joint venture								45.00%
Morila [Member]
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Economic interest in joint venture								40.00%
GNX [Member]
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Economic interest in joint venture								50.00%
Jabal Sayid
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Economic interest in joint venture								50.00%
Kabanga
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Economic interest in joint venture								50.00%
Zaldívar
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Economic interest in joint venture								50.00%
Norte Abierto Project
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Economic interest in joint operation								50.00%
Donlin Gold Project
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Economic interest in joint operation								50.00%
Porgera Mine
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Economic interest in joint operation								47.50%
Turquoise Ridge
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Economic interest in joint venture					75.00%
Veladero
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Economic interest in joint operation								50.00%
Nevada Gold Mines
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Proportion of ownership interest in subsidiary								61.50%
Proportion of ownership interests held by non-controlling interests								39.00%
Carlin
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Proportion of ownership interest in subsidiary				61.50%
Proportion of ownership interests held by non-controlling interests								38.50%
Cortez
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Proportion of ownership interest in subsidiary				61.50%
Proportion of ownership interests held by non-controlling interests								38.50%
Turquoise Ridge
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Proportion of ownership interest in subsidiary								61.50%
Proportion of ownership interests held by non-controlling interests								38.50%
Phoenix
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Proportion of ownership interests held by non-controlling interests								38.50%
Long Canyon
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Proportion of ownership interests held by non-controlling interests								38.50%
Loulo Gounkoto
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Proportion of ownership interest in subsidiary								80.00%
Proportion of ownership interests held by non-controlling interests								20.00%
Tongon
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Proportion of ownership interest in subsidiary								89.70%
Proportion of ownership interests held by non-controlling interests								10.30%
Acacia Mining PLC
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Proportion of ownership interest in subsidiary	84.00%	100.00%	100.00%			63.90%	63.90%
Proportion of ownership interests held by non-controlling interests		36.10%						0.00%
Pueblo Viejo
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Proportion of ownership interest in subsidiary								60.00%
Proportion of ownership interests held by non-controlling interests								40.00%
South Arturo
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Proportion of ownership interest in subsidiary				36.90%	60.00%
Phoenix and Long Canyon [Member]
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Proportion of ownership interest in subsidiary								61.50%
Subsequent Event | Acacia Mining PLC
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Proportion of ownership interest in subsidiary	84.00%
Newmont [Member] | Turquoise Ridge
Disclosure of Joint Arrangements and Subsidiaries [Line Items]
Economic interest in joint venture					25.00%

SIGNIFICANT ACCOUNTING POLICI_5

SIGNIFICANT ACCOUNTING POLICIES - Estimated Useful Lives of Major Asset Categories (Details)	12 Months Ended
	Dec. 31, 2019
Minimum | Buildings, plant and equipment1
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	1
Minimum | Underground mobile equipment
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	5
Minimum | Light vehicles and other mobile equipment
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	1
Minimum | Furniture, computer and office equipment
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	P1Y
Maximum | Buildings, plant and equipment1
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	28
Maximum | Underground mobile equipment
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	P7Y
Maximum | Light vehicles and other mobile equipment
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	7
Maximum | Furniture, computer and office equipment
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	7

SIGNIFICANT ACCOUNTING POLICI_6

SIGNIFICANT ACCOUNTING POLICIES - Stock-Based Compensation (Details)	12 Months Ended
	Dec. 31, 2019USD ($)
Disclosure of terms and conditions of share-based payment arrangement [line items]
Barrick Share Purchase Plan, Employer Matching Contribution, Percent Match	100.00%
Stock options
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting period	4 years
RSUs
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting period	3 years
RSUs | Minimum
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting period	2 years 6 months
RSUs | Maximum
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting period	3 years
DSUs
Disclosure of terms and conditions of share-based payment arrangement [line items]
Minimum required annual retainer (as percent)	64.00%
PRSUs
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting period	3 years
PRSUs | Minimum
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting percentage (as percent)	0.00%
PRSUs | Maximum
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting percentage (as percent)	200.00%
PGSUs | Minimum
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting percentage (as percent)	100.00%
PGSUs | Maximum
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting percentage (as percent)	600.00%
BSPP | Minimum
Disclosure of terms and conditions of share-based payment arrangement [line items]
Annual contributions per employee (as percent)	1.00%
BSPP | Maximum
Disclosure of terms and conditions of share-based payment arrangement [line items]
Annual contributions per employee (as percent)	10.00%
United States of America, Dollars | BSPP
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maximum employer contribution	$ 4,000
Canada, Dollars | BSPP
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maximum employer contribution	$ 5,000

SIGNIFICANT ACCOUNTING POLICI_7

SIGNIFICANT ACCOUNTING POLICIES - Post-Retirement Benefits (Details)	12 Months Ended
	Dec. 31, 2019
Officers
Disclosure of defined benefit plans [line items]
Employer matching contribution, percent of salary	15.00%

SIGNIFICANT ACCOUNTING POLICI_8

SIGNIFICANT ACCOUNTING POLICIES - Lease Obligations and Right-of-Use Assets (Details) - USD ($) $ in Millions	Jan. 01, 2019	Dec. 31, 2019	Dec. 31, 2018
Disclosure of quantitative information about right-of-use assets [line items]
Barrick operating lease commitments disclosed as at December 31, 2018			$ 167
Add: embedded service contracts not previously assessed as a lease	$ 38	$ 97
(Less): contracts reassessed as service agreements	(130)
(Less): short-term leases recognized on a straight-line basis as expense	(6)	56
(Less): low-value leases recognized on a straight-line basis as expense	(1)
(Less): discounting using the lessee’s incremental borrowing rate of at January 1, 2019	(4)
Discounted leases recognized as at January 1, 2019	64
Finance lease liabilities	111		19
Current lease liabilities	37
Non-current lease liabilities	74
Right-of-use assets	85	75
Additions to right-of-use assets		49
Increase (decrease) in deferred tax liability (asset)		(1,879)	$ (801)
Randgold
Disclosure of quantitative information about right-of-use assets [line items]
Finance lease liabilities	28
Land and buildings
Disclosure of quantitative information about right-of-use assets [line items]
Right-of-use assets	69	63
Machinery
Disclosure of quantitative information about right-of-use assets [line items]
Right-of-use assets	7	7
Vehicles
Disclosure of quantitative information about right-of-use assets [line items]
Right-of-use assets	9	5
IFRS 16
Disclosure of quantitative information about right-of-use assets [line items]
Additions to right-of-use assets	85
Increase (decrease) in deferred tax liability (asset)	0
Increase in finance lease liability	92
Change in deficit	$ 0
Change in net income		$ 3

CRITICAL JUDGMENTS, ESTIMATES_2

CRITICAL JUDGMENTS, ESTIMATES, ASSUMPTIONS AND RISKS (Details)	12 Months Ended
	Dec. 31, 2019USD ($)$ / ounce	Dec. 31, 2018USD ($)
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items]
Gain on remeasurement of silver sale liability	$ (628,000,000)	$ 0
Miscellaneous other operating income	17,000,000	18,000,000
Other income	3,226,000,000	132,000,000
Other current assets	565,000,000	307,000,000
Pascua-Lama | Argentina
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items]
Amounts received from VAT refunds	424,000,000	443,000,000
Revenue, performance obligation	3,538,000,000
Pascua-Lama | Zambia
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items]
Value added tax receivables	$ 72,000,000	$ 112,000,000
Measured, Indicated and Inferred Gold Resources
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items]
Gold price (in dollars per ounce) | $ / ounce	1,500
Silver | Lagunas Norte, Pierina and Veladero
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items]
Contract liabilities	$ 253,000,000
Silver | Lagunas Norte, Pierina and Veladero | Silver Wheaton Corp.
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items]
Goods deliverable under contract (as percent)	100.00%
Silver | Pascua-Lama | Silver Wheaton Corp.
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items]
Goods deliverable under contract (as percent)	25.00%
Long-term | Gold [Member]
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items]
Gold price (in dollars per ounce) | $ / ounce	1,200
Pueblo Viejo
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items]
Proportion of ownership interest in subsidiary	60.00%
Lumwana mine | Zambia
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items]
Other current assets	$ 50,000,000
Change in Timing or Quantity of Ounces to be Delivered Under Streaming Agreement [Member]
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items]
Contract liabilities	$ 22

ACQUISITIONS AND DIVESTITURES -

ACQUISITIONS AND DIVESTITURES - Gross Cash Proceeds from Divestiture (Details) - USD ($) $ in Millions	Sep. 30, 2019	Jun. 30, 2019	Jan. 01, 2019
Randgold [Member]
Disclosure of detailed information about business combination [line items]
Consideration transferred, acquisition-date fair value			$ 7,909
Cash and cash equivalents recognised as of acquisition date			751
Current assets recognised as of acquisition date			319
Property, plant and equipment recognised as of acquisition date			3,869
Non-current assets recognised as of acquisition date			230
Goodwill recognised as of acquisition date			1,672
Total assets acquired			10,094
Current liabilities recognised as of acquisition date			539
Deferred tax liabilities recognised as of acquisition date			688
Borrowings recognised as of acquisition date			31
Total liabilities acquired			1,313
Non-controlling interest in acquiree recognised at acquisition date			872
Identifiable assets acquired (liabilities assumed)			7,909
Newmont [Member]
Disclosure of detailed information about business combination [line items]
Consideration transferred, acquisition-date fair value		$ 3,897
Current assets recognised as of acquisition date		149
Inventory recognised as of acquisition date		970
Property, plant and equipment recognised as of acquisition date		3,534
Goodwill recognised as of acquisition date		2,520
Total assets acquired		7,173
Current liabilities recognised as of acquisition date		119
Deferred tax liabilities recognised as of acquisition date		268
Non-current liabilities recognised as of acquisition date		449
Total liabilities acquired		836
Non-controlling interest in acquiree recognised at acquisition date	$ 1,645	2,440
Identifiable assets acquired (liabilities assumed)		$ 3,897
Equity shares [Member] | Randgold [Member]
Disclosure of detailed information about business combination [line items]
Consideration transferred, acquisition-date fair value			7,903
Restricted shares [Member] | Randgold [Member]
Disclosure of detailed information about business combination [line items]
Consideration transferred, acquisition-date fair value			6
Equity investments | Randgold [Member]
Disclosure of detailed information about business combination [line items]
Non-current assets recognised as of acquisition date			3,253
Other provisions | Randgold [Member]
Disclosure of detailed information about business combination [line items]
Non-current liabilities recognised as of acquisition date			$ 55

ACQUISITIONS AND DIVESTITURES_2

ACQUISITIONS AND DIVESTITURES - Narrative (Details)	Jan. 24, 2020Rate	Jan. 01, 2020Rate	Dec. 10, 2019USD ($)Rateshares	Nov. 28, 2019USD ($)Rate	Sep. 17, 2019Rateshares	Mar. 10, 2019Rate	Sep. 24, 2018USD ($)	Dec. 31, 2019USD ($)Rate	Sep. 30, 2019USD ($)$ / bbl	Dec. 31, 2019USD ($)	Jun. 30, 2019USD ($)Rate	Jun. 30, 2018USD ($)	Sep. 30, 2019USD ($)Rate	Sep. 16, 2019	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Jul. 18, 2019USD ($)	Jan. 01, 2019USD ($)sharesRate	Oct. 02, 2018shares
Disclosure of detailed information about business combination [line items]
Proportion of ownership interests held by non-controlling interests		16.00%
Adjustments for fair value losses (gains)															$ (1,886,000,000)	$ 0
Acquisition-related costs for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination															18,000,000
Shandong Gold [Member]
Disclosure of detailed information about business combination [line items]
Consideration paid (received)							$ 300,000,000
Number of equity interests acquired (shares) | shares																			120,000,000
Massawa [Member]
Disclosure of detailed information about business combination [line items]
Proportion of ownership interest sold | Rate			90.00%
Consideration paid (received)			$ 430,000,000
Cash consideration received															(380,000,000)
Proportion of consideration | Rate			92.50%
Loan issued for part financing			$ 25,000,000
Number of shares in entity held by entity or by its subsidiaries or associates | shares			19,164,403
Massawa [Member] | Teranga Gold Corporation [Member]
Disclosure of detailed information about business combination [line items]
Debt instruments issued			$ 225,000,000
Proportion of interest held by shareholders | Rate			11.45%
Proportion of interest held by shareholders | Rate			11.45%
Massawa [Member] | Cash and equivalents
Disclosure of detailed information about business combination [line items]
Cash consideration received			$ (300,000,000)
Massawa [Member] | Contingent payment [Member]
Disclosure of detailed information about business combination [line items]
Cash consideration received			$ (50,000,000)
KCGM
Disclosure of detailed information about business combination [line items]
Proportion of ownership interest sold | Rate				50.00%
Consideration paid (received)				$ 750,000,000
Gain (loss) on transaction				$ 408,000,000											$ 408,000,000
Barrick Nevada Mines [Member]
Disclosure of detailed information about business combination [line items]
Proportion of ownership interest in subsidiary | Rate											100.00%
Acacia Mining PLC
Disclosure of detailed information about business combination [line items]
Proportion of ownership interest sold | Rate	16.00%
Proportion of interest held by shareholders | Rate					1.00%
Increase (decrease) through change in equity of subsidiaries, equity									$ 70,000,000
Share for share exchange | shares					0.168
Number of shares issued | shares					24,836,670
Proportion of ownership interests held by non-controlling interests					36.10%										0.00%
Proportion of ownership interest in subsidiary		84.00%			100.00%			100.00%					63.90%	63.90%
Mineral price (gold, in dollars per ounce; copper, in dollars per pound)												1,200
Proportion of interest held by shareholders | Rate					1.00%
Turquoise Ridge
Disclosure of detailed information about business combination [line items]
Proportion of ownership interests held by non-controlling interests															38.50%
Proportion of ownership interest in subsidiary															61.50%
Nevada Gold Mines
Disclosure of detailed information about business combination [line items]
Increase (decrease) through change in equity of subsidiaries, equity															$ 7,555,000,000
Proportion of ownership interests held by non-controlling interests															39.00%
Proportion of ownership interest in subsidiary															61.50%
Mineral price (gold, in dollars per ounce; copper, in dollars per pound) | $ / bbl									1,300
Randgold [Member]
Disclosure of detailed information about business combination [line items]
Acquisition-related costs for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination															$ 37,000,000
Barrick Gold Corporation [Member]
Disclosure of detailed information about business combination [line items]
Proportion of interest held by shareholders | Rate																		66.70%
Proportion of interest held by shareholders | Rate																		66.70%
Newmont [Member]
Disclosure of detailed information about business combination [line items]
Consideration transferred, acquisition-date fair value											$ 3,897,000,000
Percentage of voting equity interests acquired | Rate						61.50%
Proportion of ownership interests held by non-controlling interests | Rate						38.50%
Non-controlling interest in acquiree recognised at acquisition date									$ 1,645,000,000		$ 2,440,000,000		$ 1,645,000,000
Revenue of acquiree since acquisition date										$ 1,184,000,000
Revenue of combined entity as if combination occurred at beginning of period															10,745,000,000
Profit (loss) of combined entity as if combination occurred at beginning of period															4,500,000,000
Profit (loss) of acquiree since acquisition date										322,000,000
Acquisition-related costs for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination															30,000,000
Randgold Corporation [Member]
Disclosure of detailed information about business combination [line items]
Consideration transferred, acquisition-date fair value																		$ 7,909,000,000
Percentage of voting equity interests acquired | Rate																		100.00%
Share for share exchange | shares																		6.1280
Non-controlling interest in acquiree recognised at acquisition date																		$ 872,000,000
Revenue of acquiree since acquisition date															1,390,000,000
Profit (loss) of acquiree since acquisition date															241,000,000
Acquisition-related costs for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination															37,000,000
Number of instruments or interests issued or issuable | shares																		583,669,178
Fair value of acquired receivables																		$ 193,000,000
Tax claims related to foreign operations								$ 275,000,000		275,000,000					275,000,000			$ 267.7
Taxes recoverable								60,000,000		60,000,000					60,000,000
Randgold Corporation [Member] | Randgold Corporation [Member]
Disclosure of detailed information about business combination [line items]
Proportion of interest held by shareholders | Rate																		33.30%
Proportion of interest held by shareholders | Rate																		33.30%
Turquoise Ridge
Disclosure of detailed information about business combination [line items]
Proportion of ownership interest in joint venture | Rate											75.00%
MALI | Randgold [Member]
Disclosure of detailed information about business combination [line items]
Tax claims related to foreign operations								$ 92,000,000		$ 92,000,000	$ 275,000,000				$ 92,000,000			$ 267,700,000
Taxes recoverable																	$ 60,000,000	41,100,000
Fair value of taxes recoverable																		$ 0

SEGMENT INFORMATION - Narrative

SEGMENT INFORMATION - Narrative (Details)	Dec. 31, 2019minesiteinvestment
Disclosure of operating segments [line items]
Number of minesites	19
Number of investments | investment	2
Gold [Member] | Operating segments
Disclosure of operating segments [line items]
Number of minesites	9

SEGMENT INFORMATION - Consolida

SEGMENT INFORMATION - Consolidated Statements of Income Information (Details) - USD ($) $ in Millions	Jul. 01, 2019	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Disclosure of operating segments [line items]
Revenue			$ 9,717	$ 7,243
Depreciation			2,032	1,457
Exploration, evaluation and project expenses			342	383
Other expenses (income)			(3,100)	90
Net income (loss)			4,574	(1,435)
Accretion			75	87
Share of income (loss)			605	110
Cost of sales (excluding depreciation)			6,911	5,220
Pueblo Viejo
Disclosure of operating segments [line items]
Revenue, attributable to non-controlling interests			566	535
Cost of sales, attributable to non-controlling interests			286	289
Share of income (loss)			274	237
Loulo Gounkoto
Disclosure of operating segments [line items]
Revenue, attributable to non-controlling interests			201	0
Cost of sales, attributable to non-controlling interests			150	0
Share of income (loss)			48	0
Nevada Gold Mines
Disclosure of operating segments [line items]
Revenue, attributable to non-controlling interests			1,049	0
Cost of sales, attributable to non-controlling interests			704	0
Share of income (loss)			329	0
Tanzanian Mines [Member]
Disclosure of operating segments [line items]
Revenue, attributable to non-controlling interests			169	240
Cost of sales, attributable to non-controlling interests			125	163
Share of income (loss)			31	61
Tongon
Disclosure of operating segments [line items]
Revenue, attributable to non-controlling interests			39	0
Cost of sales, attributable to non-controlling interests			41	0
Share of income (loss)			(2)	0
Consolidated total [Member]
Disclosure of operating segments [line items]
Revenue			9,717
Direct mining, royalties and community relations			4,864
Depreciation			1,991
Exploration, evaluation and project expenses			77
Other expenses (income)			85
Net income (loss)			2,700
Operating segments
Disclosure of operating segments [line items]
Revenue			10,222	7,243
Direct mining, royalties and community relations			5,071	3,753
Depreciation			2,187	1,420
Exploration, evaluation and project expenses			80	72
Other expenses (income)			76	97
Net income (loss)			2,808	1,901
Accretion			53	53
Operating segments | Carlin
Disclosure of operating segments [line items]
Revenue			1,862	1,066
Direct mining, royalties and community relations			998	624
Depreciation			312	262
Exploration, evaluation and project expenses			17	19
Other expenses (income)			4	(5)
Net income (loss)			531	166
Operating segments | Cortez1 [Member]
Disclosure of operating segments [line items]
Revenue			1,325	1,589
Direct mining, royalties and community relations			511	442
Depreciation			240	386
Exploration, evaluation and project expenses			8	16
Other expenses (income)			16	19
Net income (loss)			550	726
Operating segments | Turquoise Ridge
Disclosure of operating segments [line items]
Revenue			688	331
Direct mining, royalties and community relations			285	178
Depreciation			140	28
Exploration, evaluation and project expenses			4	0
Other expenses (income)			0	(1)
Net income (loss)			259	126
Proportion of ownership interest in joint venture	75.00%	75.00%
Percent of ownership by other parties in joint ventures	25.00%	25.00%
Operating segments | Pueblo Viejo
Disclosure of operating segments [line items]
Revenue			1,409	1,333
Direct mining, royalties and community relations			525	547
Depreciation			196	185
Exploration, evaluation and project expenses			12	21
Other expenses (income)			0	1
Net income (loss)			676	579
Operating segments | Loulo Gounkoto
Disclosure of operating segments [line items]
Revenue			1,007	0
Direct mining, royalties and community relations			456	0
Depreciation			295	0
Exploration, evaluation and project expenses			12	0
Other expenses (income)			6	0
Net income (loss)			238	0
Operating segments | Kibali [Member]
Disclosure of operating segments [line items]
Revenue			505	0
Direct mining, royalties and community relations			207	0
Depreciation			196	0
Exploration, evaluation and project expenses			3	0
Other expenses (income)			(9)	0
Net income (loss)			108	0
Operating segments | Veladero
Disclosure of operating segments [line items]
Revenue			386	366
Direct mining, royalties and community relations			208	189
Depreciation			115	121
Exploration, evaluation and project expenses			3	2
Other expenses (income)			3	1
Net income (loss)			57	53
Operating segments | Porgera
Disclosure of operating segments [line items]
Revenue			403	269
Direct mining, royalties and community relations			242	170
Depreciation			42	42
Exploration, evaluation and project expenses			2	0
Other expenses (income)			4	1
Net income (loss)			113	56
Operating segments | North Mara
Disclosure of operating segments [line items]
Revenue			462	423
Direct mining, royalties and community relations			213	202
Depreciation			97	62
Exploration, evaluation and project expenses			0	0
Other expenses (income)			6	12
Net income (loss)			146	147
Operating segments | Other
Disclosure of operating segments [line items]
Revenue			2,175	1,866
Direct mining, royalties and community relations			1,426	1,401
Depreciation			554	334
Exploration, evaluation and project expenses			19	14
Other expenses (income)			46	69
Net income (loss)			130	48
Reconciling items
Disclosure of operating segments [line items]
Exploration, evaluation and project expenses			265	311
Other expenses (income)			(3,132)	46
Cost of sales (excluding depreciation)			56	47
Reconciling items | Kibali [Member]
Disclosure of operating segments [line items]
Revenue			(505)	0
Direct mining, royalties and community relations			(207)	0
Depreciation			(196)	0
Exploration, evaluation and project expenses			(3)	0
Other expenses (income)			9	0
Net income (loss)			(108)	0
Reconciling items | Nevada Gold Mines
Disclosure of operating segments [line items]
Revenue, attributable to non-controlling interests			0	0
Cost of sales, attributable to non-controlling interests			6	0
Share of income (loss)			1	0
Reconciling items | Tanzanian Mines [Member]
Disclosure of operating segments [line items]
Revenue, attributable to non-controlling interests			0	0
Cost of sales, attributable to non-controlling interests			0	1
Share of income (loss)			$ (17)	$ 2

SEGMENT INFORMATION - Reconcili

SEGMENT INFORMATION - Reconciliation of Segment Income to Loss from Continuing Operations Before Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of operating segments [line items]
Other cost of sales/amortization	$ (6,911)	$ (5,220)
Exploration, evaluation and project expenses not attributable to segments	(342)	(383)
General and administrative expenses	(212)	(265)
Other (expense) income not attributable to segments	3,100	(90)
Impairment reversals (charges)	1,423	(900)
Loss on currency translation	(109)	(136)
Closed mine rehabilitation	(5)	13
Income from equity investees	165	46
Finance costs, net (includes non-segment accretion)	(469)	(545)
Income (loss) before income taxes	6,357	(237)
Gain on interest rate hedges	(6)	(3)
Gain (loss) on extinguishment of borrowings	3	29
Profit (loss), attributable to non-controlling interests	605	110
Operating segments
Disclosure of operating segments [line items]
Exploration, evaluation and project expenses not attributable to segments	(80)	(72)
General and administrative expenses	(27)	(26)
Other (expense) income not attributable to segments	(76)	(97)
Income (loss) before income taxes	2,700	1,901
Reconciling items
Disclosure of operating segments [line items]
Other cost of sales/amortization	(56)	(47)
Exploration, evaluation and project expenses not attributable to segments	(265)	(311)
General and administrative expenses	(212)	(265)
Other (expense) income not attributable to segments	3,132	(46)
Impairment reversals (charges)	1,423	(900)
Loss on currency translation	(109)	(136)
Closed mine rehabilitation	(5)	13
Income from equity investees	165	46
Finance costs, net (includes non-segment accretion)	(416)	(492)
Gain on non-hedge derivatives	0	0
Gain on interest rate hedges	0	4
Gain (loss) on extinguishment of borrowings	3	29
Unrealized gain (loss) on non-hedge derivatives	0	1
Tanzanian Mines [Member]
Disclosure of operating segments [line items]
Revenue, attributable to non-controlling interests	169	240
Cost of sales, attributable to non-controlling interests	125	163
Profit (loss), attributable to non-controlling interests	31	61
Tanzanian Mines [Member] | Reconciling items
Disclosure of operating segments [line items]
Revenue, attributable to non-controlling interests	0	0
Cost of sales, attributable to non-controlling interests	0	1
Profit (loss), attributable to non-controlling interests	(17)	2
Nevada Gold Mines
Disclosure of operating segments [line items]
Revenue, attributable to non-controlling interests	1,049	0
Cost of sales, attributable to non-controlling interests	704	0
Profit (loss), attributable to non-controlling interests	329	0
Nevada Gold Mines | Reconciling items
Disclosure of operating segments [line items]
Revenue, attributable to non-controlling interests	0	0
Cost of sales, attributable to non-controlling interests	6	0
Profit (loss), attributable to non-controlling interests	$ 1	$ 0

SEGMENT INFORMATION - Geographi

SEGMENT INFORMATION - Geographical Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of geographical areas [line items]
Non-current assets	$ 37,505	$ 18,653
Revenue	9,717	7,243
United States
Disclosure of geographical areas [line items]
Non-current assets	16,514	6,857
Revenue	4,190	3,025
MALI
Disclosure of geographical areas [line items]
Non-current assets	4,662	0
Revenue	1,007	0
Dominican Republic
Disclosure of geographical areas [line items]
Non-current assets	4,303	3,468
Revenue	1,409	1,334
CONGO, THE DEMOCRATIC REPUBLIC OF THE
Disclosure of geographical areas [line items]
Non-current assets	3,218	0
Revenue	0	0
Argentina
Disclosure of geographical areas [line items]
Non-current assets	2,158	2,679
Revenue	0	0
Zambia
Disclosure of geographical areas [line items]
Non-current assets	1,705	735
Revenue	393	502
Zambia
Disclosure of geographical areas [line items]
Non-current assets	1,571	1,723
Revenue	386	366
Tanzania
Disclosure of geographical areas [line items]
Non-current assets	1,009	1,059
Revenue	671	664
Canada
Disclosure of geographical areas [line items]
Non-current assets	490	368
Revenue	305	226
COTE D'IVOIRE
Disclosure of geographical areas [line items]
Non-current assets	424	0
Revenue	384	0
Saudi Arabia
Disclosure of geographical areas [line items]
Non-current assets	368	408
Revenue	0	0
Papua New Guinea
Disclosure of geographical areas [line items]
Non-current assets	361	348
Revenue	403	269
Canada
Disclosure of geographical areas [line items]
Non-current assets	170	145
Revenue	279	449
Saudi Arabia
Disclosure of geographical areas [line items]
Non-current assets	0	396
Revenue	290	408
Unallocated
Disclosure of geographical areas [line items]
Non-current assets	552	467
Revenue	$ 0	$ 0

SEGMENT INFORMATION - Capital E

SEGMENT INFORMATION - Capital Expenditures (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of operating segments [line items]
Capital expenditures	$ 1,799	$ 1,443
Cash expenditures	1,701	1,400
Decrease in accrued capital expenditures	55	43
Other
Disclosure of operating segments [line items]
Capital expenditures	1,756	1,443
Operating segments
Disclosure of operating segments [line items]
Capital expenditures	1,689	1,322
Operating segments | Carlin
Disclosure of operating segments [line items]
Capital expenditures	303	195
Operating segments | Cortez1 [Member]
Disclosure of operating segments [line items]
Capital expenditures	327	349
Operating segments | Turquoise Ridge
Disclosure of operating segments [line items]
Capital expenditures	125	62
Operating segments | Pueblo Viejo
Disclosure of operating segments [line items]
Capital expenditures	107	145
Operating segments | Loulo Gounkoto
Disclosure of operating segments [line items]
Capital expenditures	198	0
Operating segments | Kibali [Member]
Disclosure of operating segments [line items]
Capital expenditures	43	0
Operating segments | Veladero
Disclosure of operating segments [line items]
Capital expenditures	95	143
Operating segments | Porgera
Disclosure of operating segments [line items]
Capital expenditures	50	62
Operating segments | North Mara
Disclosure of operating segments [line items]
Capital expenditures	57	82
Operating segments | Other
Disclosure of operating segments [line items]
Capital expenditures	384	284
Other items not allocated to segments
Disclosure of operating segments [line items]
Capital expenditures	110	121
Reconciling items | Other
Disclosure of operating segments [line items]
Capital expenditures	$ (43)	$ 0

REVENUE - Revenue by Type (Deta

REVENUE - Revenue by Type (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Disaggregation of Revenue [Line Items]
Revenue	$ 9,717	$ 7,243
Gold[member]
Disclosure of Disaggregation of Revenue [Line Items]
Revenue	9,186	6,600
Adjustments for gains (losses) on change in fair value of derivatives	1	0
Spot market sales
Disclosure of Disaggregation of Revenue [Line Items]
Revenue	9,084	6,575
Concentrate sales
Disclosure of Disaggregation of Revenue [Line Items]
Revenue	101	25
Copper
Disclosure of Disaggregation of Revenue [Line Items]
Revenue	393	512
Adjustments for gains (losses) on change in fair value of derivatives	22	(37)
Copper concentrate [Member]
Disclosure of Disaggregation of Revenue [Line Items]
Revenue	371	549
Other
Disclosure of Disaggregation of Revenue [Line Items]
Revenue	138	131
Silver Revenue [Member]
Disclosure of Disaggregation of Revenue [Line Items]
Revenue	$ 97	$ 121

REVENUE - Narrative (Details)

REVENUE - Narrative (Details)	Dec. 31, 2019$ / ounce$ / pound	Dec. 31, 2018$ / pound
Disclosure of Disaggregation of Revenue [Line Items]
Percent change in commodity prices used for sensitivity analysis	10.00%
Gold[member]
Disclosure of Disaggregation of Revenue [Line Items]
Percentage of composition of principal product (as percent)	90.00%
Average price of sales subject to final settlement (copper in dollars per pound; gold in dollars per oz) | $ / ounce	1,524
Copper
Disclosure of Disaggregation of Revenue [Line Items]
Average price of sales subject to final settlement (copper in dollars per pound; gold in dollars per oz) | $ / pound	2.80	2.71

REVENUE - Provisional Copper an

REVENUE - Provisional Copper and Gold Sales (Details) ozt in Thousands, lb in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)$ / ounce$ / poundoztlb	Dec. 31, 2018USD ($)$ / poundoztlb
Disclosure of Disaggregation of Revenue [Line Items]
Percent change in commodity prices used for sensitivity analysis	10.00%
Copper
Disclosure of Disaggregation of Revenue [Line Items]
Average price of hedging instrument | $ / pound	2.80	2.71
Volumes subject to final pricing Copper (millions) Gold (000s) | lb	39	51
Impact on net income before taxation of 10% movement in market price US$	$ 11	$ 14
Gold[member]
Disclosure of Disaggregation of Revenue [Line Items]
Average price of hedging instrument | $ / ounce	1,524
Volumes subject to final pricing Copper (millions) Gold (000s) | ozt	15	0
Impact on net income before taxation of 10% movement in market price US$	$ 2	$ 0

COST OF SALES (Details)

COST OF SALES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Detailed Information About Cost of Sales [Line Items]
Direct mining cost	$ 4,504	$ 3,481
Depreciation	2,032	1,457
Royalty expense	342	235
Community relations	33	47
Cost of sales	6,911	5,220
Inventory reduction amount	26	199
Employee benefits expense	1,350	1,001
Gold[member]
Disclosure of Detailed Information About Cost of Sales [Line Items]
Direct mining cost	4,274	3,130
Depreciation	1,902	1,253
Royalty expense	308	196
Community relations	30	42
Cost of sales	6,514	4,621
Copper
Disclosure of Detailed Information About Cost of Sales [Line Items]
Direct mining cost	224	344
Depreciation	100	170
Royalty expense	34	39
Community relations	3	5
Cost of sales	361	558
Other
Disclosure of Detailed Information About Cost of Sales [Line Items]
Direct mining cost	6	7
Depreciation	30	34
Royalty expense	0	0
Community relations	0	0
Cost of sales	$ 36	$ 41

EXPLORATION, EVALUATION AND P_3

EXPLORATION, EVALUATION AND PROJECT EXPENSES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about property, plant and equipment [line items]
Minesite exploration and evaluation	$ 69	$ 45
Global exploration and evaluation	143	121
Corporate development2	51	60
Business improvement and innovation	10	44
Total exploration, evaluation and project expenses	342	383
Acquisition-related costs for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination	18
Pascua-Lama
Disclosure of detailed information about property, plant and equipment [line items]
Advanced project costs	49	77
Other [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Advanced project costs	20	$ 36
Randgold
Disclosure of detailed information about property, plant and equipment [line items]
Acquisition-related costs for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination	37
Nevada Gold Mines, KCGM and Acacia [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Acquisition-related costs for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination	$ 44

OTHER EXPENSE (INCOME) - Other

OTHER EXPENSE (INCOME) - Other Expense (Income) (Details) - USD ($) $ in Millions	Nov. 28, 2019	Dec. 31, 2019	Dec. 31, 2018
Other Operating Expenses [Abstract]
Litigation		$ 26	$ 68
Write-offs		3	51
Bulyanhulu reduced operations program costs		24	29
Bank charges		16	22
Insurance payment to Porgera JV		0	13
Acquisition-related costs for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination		18
Tanzania - other		11	11
Other		28	28
Total other expense		126	222
Other Income:
(Gain) loss on sale of long-lived assets		(441)	(68)
Adjustments for fair value losses (gains)		(1,886)	0
Gain on remeasurement of silver sale liability		(628)	0
Lumwana tax settlement gain		(216)	0
Income from fines and penalties		(18)	0
Insurance proceeds related to Kalgoorlie		0	(24)
Interest income		(20)	(22)
Other		(17)	(18)
Total other income		(3,226)	(132)
Total		(3,100)	90
Western Australia Stamp Duty [Member]
Other Operating Expenses [Abstract]
Write-offs			43
Acacia Mining PLC
Other Operating Expenses [Abstract]
Acquisition-related costs for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination			0
Other Income:
Gain (loss) recognised on measurement to fair value less costs to sell or on disposal of assets or disposal groups constituting discontinued operation			$ 45
KCGM
Other Income:
Gain (loss) recognised on measurement to fair value less costs to sell or on disposal of assets or disposal groups constituting discontinued operation	$ 408	$ 408

IMPAIRMENT REVERSALS (Details)

IMPAIRMENT REVERSALS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of impairment loss and reversal of impairment loss [line items]
Impairment (reversals) charges	$ (1,423)	$ 900
Impairment (reversals) of long lived assets
Disclosure of impairment loss and reversal of impairment loss [line items]
Impairment (reversals) charges	(1,423)	722
Intangible assets other than goodwill [member]
Disclosure of impairment loss and reversal of impairment loss [line items]
Impairment (reversals) charges	0	24
Goodwill
Disclosure of impairment loss and reversal of impairment loss [line items]
Impairment (reversals) charges	$ 0	$ 154

GENERAL AND ADMINISTRATIVE EX_3

GENERAL AND ADMINISTRATIVE EXPENSES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Administrative Expense [Line Items]
Administrative expenses	$ 212	$ 265
Severance payments	18	63
Employee costs	131	156
Corporate administration
Disclosure of Administrative Expense [Line Items]
Administrative expenses	185	239
Operating segment administration
Disclosure of Administrative Expense [Line Items]
Administrative expenses	$ 27	$ 26

INCOME TAX EXPENSE - Schedule o

INCOME TAX EXPENSE - Schedule of Components of Income Tax Expense (Recovery) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Current tax
Charge for the year	$ 685	$ 423
Adjustment in respect of prior years	25	45
Canada	5	0
International	705	468
Current tax	710	468
Deferred tax
Origination and reversal of temporary differences in the current year	1,112	821
Adjustment in respect of prior years	(39)	(91)
Canada	0	628
International	1,073	102
Deferred tax	1,073	730
Income tax expense	$ 1,783	$ 1,198

INCOME TAX EXPENSE - Narrative

INCOME TAX EXPENSE - Narrative (Details) - USD ($) $ in Millions	Jan. 24, 2020	Oct. 19, 2017	Dec. 31, 2019	Dec. 31, 2018	Sep. 30, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2016	Dec. 31, 2015
Disclosure Of Major Components Of Tax Expense (Income) [Line Items]
Net currency translation losses on deferred tax balances						$ 43	$ 41
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Transition Tax For Accumulated Foreign Earnings, Provisional Income Tax Expense						0	49
Income tax expense (recovery)						1,783	1,198
Current tax expense (income) and adjustments for current tax of prior periods						710	468
Current tax expense (income)						685	423
Other current assets			$ 565	$ 307		565	307
Gains (losses) on litigation settlements						216	0
Acacia Mining PLC
Disclosure Of Major Components Of Tax Expense (Income) [Line Items]
Income tax expense (recovery)								$ 70	$ 128
Payment to Resolve Outstanding Tax Claims				300			300
Current tax expense (income)					$ 172
UNITED STATES
Disclosure Of Major Components Of Tax Expense (Income) [Line Items]
Deferred tax expense (income)				107
Zambia
Disclosure Of Major Components Of Tax Expense (Income) [Line Items]
Net currency translation losses on deferred tax balances						75	$ 41
CANADA
Disclosure Of Major Components Of Tax Expense (Income) [Line Items]
Deferred tax expense (income)				0
PERU
Disclosure Of Major Components Of Tax Expense (Income) [Line Items]
Deferred tax expense (income)				$ 0
ZAMBIA | Lumwana mine [Member]
Disclosure Of Major Components Of Tax Expense (Income) [Line Items]
Other current assets			50			50
Nevada Gold Mines [Member]
Disclosure Of Major Components Of Tax Expense (Income) [Line Items]
Income tax expense (recovery)			30
TANZANIA, UNITED REPUBLIC OF
Disclosure Of Major Components Of Tax Expense (Income) [Line Items]
Payment to Resolve Outstanding Tax Claims			300			300
Initial upfront payment						100
Installment Payment To Resolve Outstanding Tax Claims			$ 40			$ 40
Tax contingent liability [member] | Tanzanian Revenue Authority Assessments [Member] | Acacia Mining PLC
Disclosure Of Major Components Of Tax Expense (Income) [Line Items]
Economic Benefit Shared With Government	5000.00%	5000.00%

INCOME TAX EXPENSE - Reconcilia

INCOME TAX EXPENSE - Reconciliation to Canadian Statutory Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Tax [Abstract]
At 26.5% statutory rate	$ 1,684	$ (63)
Statutory rate (as percent)	26.50%	26.50%
Increase (decrease) due to:
Allowances and special tax deductions	$ (129)	$ (59)
Impact of foreign tax rates	(264)	(4)
Expenses not tax deductible	78	74
Impairment charges not recognized in deferred tax assets	45	168
Tax effect of impairment of goodwill	0	54
Net currency translation losses on deferred tax balances	43	41
Tax impact from pass-through entities and equity accounted investments	(140)	(15)
Current year tax losses not recognized in deferred tax assets	8	100
Tax effect of divestitures	12	0
Tax Effect from De-recognition in Deferred Tax Assets	4	814
One time toll charge	0	(49)
Adjustments in respect of prior years	(13)	3
Increase to income tax related contingent liabilities	21	0
Impact of tax rate changes	(35)	0
Dominican Republic Tax audit	0	42
United States withholding taxes	30	(107)
Other withholding taxes	24	14
Mining taxes	412	184
Other items	3	1
Income tax expense	$ 1,783	$ 1,198

EARNINGS PER SHARE (Details)

EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Earnings per share [abstract]
Net income (loss)	$ 4,574	$ (1,435)
Net income attributable to non-controlling interests	(605)	(110)
Net income attributable to equity holders of Barrick Gold Corporation - Basic	3,969	(1,545)
Net income attributable to equity holders of Barrick Gold Corporation - Diluted	$ 3,969	$ (1,545)
Weighted average shares outstanding - Basic (in shares)	1,758	1,167
Weighted average shares outstanding - Diluted (in shares)	1,758	1,167
Basic earnings per share data attributable to the equity holders of Barrick Gold Corporation (in USD per share)	$ 2.26	$ (1.32)
Diluted earnings per share data attributable to the equity holders of Barrick Gold Corporation (in USD per share)	$ 2.26	$ (1.32)

FINANCE COSTS, NET (Details)

FINANCE COSTS, NET (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Detailed Information about Finance Income (Expense) [Line Items]
Interest	$ 435	$ 452
Amortization of debt issue costs	2	5
Amortization of discount (premium)	(1)	(1)
Interest expense on lease liabilities	6	0
Gain on interest rate hedges	(6)	(3)
Interest capitalized	(14)	(9)
Accretion	75	87
Loss on debt extinguishment	3	29
Finance income	(31)	(15)
Total	469	545
Interest paid, classified as operating activities	$ 333	$ 350
Capitalisation rate of borrowing costs eligible for capitalisation	6.30%	6.10%
4.4 Percent Notes Due 2021
Disclosure of Detailed Information about Finance Income (Expense) [Line Items]
Borrowings, interest rate (as percent)	4.40%

CASH FLOW _ OTHER ITEMS (Detail

CASH FLOW – OTHER ITEMS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Cash flow arising from changes in:
Stock-based compensation expense	$ 71	$ 33
Income from investment in equity investees (note 16)	(165)	(46)
Increase (decrease) in estimate of rehabilitation costs at closed mines	5	(13)
Net inventory impairment charges (note 17)	26	199
Gain on remeasurement of silver sale liability	(628)	0
Gains (losses) on litigation settlements	(216)	0
Change in other assets and liabilities	(113)	(169)
Settlement of rehabilitation obligations	(93)	(66)
Other operating activities	(1,113)	(62)
Cash flow arising from changes in:
Accounts receivable	(118)	(9)
Inventory	9	(111)
Other current assets	(89)	(109)
Accounts payable	(108)	19
Other current liabilities	(51)	37
Change in working capital	(357)	(173)
Dividends received from investments accounted for using equity method, classified as investing activities	125	0
Cash repayments of advances and loans from related parties	92	0
Funding of equity method investments (note 16)	2	5
Other	(2)	0
Other investing activities	$ 213	$ (5)

INVESTMENTS - Equity Accounting

INVESTMENTS - Equity Accounting Method Investment Continuity (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of joint ventures [line items]
Investments, beginning balance	$ 1,234
Equity pick-up (loss) from equity investees	(165)	$ (46)
Impairment (reversals) charges (note 10)	(1,423)	900
Investments, ending balance	4,527	1,234
Joint ventures
Disclosure of joint ventures [line items]
Investments, beginning balance	1,234	1,213
Equity pick-up (loss) from equity investees	(165)	46
Funds invested	(2)	5
Acquisitions	3,253
Dividends paid	125
Impairment (reversals) charges (note 10)		(30)
Investments, ending balance	4,527	1,234
Shareholder loan repayment	(2)
Kibali [Member]
Disclosure of joint ventures [line items]
Investments, beginning balance	0	0
Equity pick-up (loss) from equity investees	(98)	0
Funds invested	0	0
Acquisitions	3,195
Dividends paid	75
Impairment (reversals) charges (note 10)		0
Investments, ending balance	3,218	0
Shareholder loan repayment	0
Jabal Sayid
Disclosure of joint ventures [line items]
Investments, beginning balance	245	206
Equity pick-up (loss) from equity investees	(51)	39
Funds invested	0	0
Acquisitions	0
Dividends paid	0
Impairment (reversals) charges (note 10)		0
Investments, ending balance	296	245
Shareholder loan repayment	0
Zaldívar
Disclosure of joint ventures [line items]
Investments, beginning balance	989	975
Equity pick-up (loss) from equity investees	(16)	14
Funds invested	0	0
Acquisitions	0
Dividends paid	50
Impairment (reversals) charges (note 10)		0
Investments, ending balance	955	989
Shareholder loan repayment	0
OtherJV [Member]
Disclosure of joint ventures [line items]
Investments, beginning balance	0	32
Equity pick-up (loss) from equity investees	0	(7)
Funds invested	(2)	5
Acquisitions	58
Dividends paid	0
Impairment (reversals) charges (note 10)		(30)
Investments, ending balance	58	$ 0
Shareholder loan repayment	$ (2)

INVESTMENTS - Summarized Equity

INVESTMENTS - Summarized Equity Investee Financial Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of joint ventures [line items]
Revenue	$ 9,717	$ 7,243
Cost of sales (excluding depreciation)	6,911	5,220
Depreciation	2,032	1,457
Finance expense	469	545
Other expenses (income)	(3,100)	90
Income (loss) before income taxes	6,357	(237)
Income tax expense	(1,783)	(1,198)
Net income (loss)	4,574	(1,435)
Total comprehensive income (loss)	4,610	(1,424)
Cash and equivalents (note 25a)	3,314	1,571	$ 2,234
Other current assets (note 18)	565	307
Total current assets	6,887	3,978
Total assets	44,392	22,631
Other current liabilities	622	321
Total current liabilities	2,376	1,668
Other non-current liabilities	823	1,743
Total liabilities	14,565	13,246
Total equity	29,827	9,385	$ 11,131
Current inventories	2,289	1,852
Kibali [Member]
Disclosure of joint ventures [line items]
Revenue	1,123	0
Cost of sales (excluding depreciation)	460	0
Depreciation	435	0
Finance expense	0	0
Other expenses (income)	18	0
Income (loss) before income taxes	210	0
Income tax expense	(16)	0
Net income (loss)	194	0
Total comprehensive income (loss)	194	0
Cash and equivalents (note 25a)	453	0
Other current assets (note 18)	338	0
Total current assets	791	0
Non-current assets	4,623	0
Total assets	5,414	0
Current financial liabilities (excluding trade, other payables & provisions)	11	0
Other current liabilities	35	0
Total current liabilities	46	0
Non-current financial liabilities (excluding trade, other payables & provisions)	44	0
Other non-current liabilities	648	0
Total non-current liabilities	692	0
Total liabilities	738	0
Total equity	4,676	0
Jabal Sayid
Disclosure of joint ventures [line items]
Revenue	315	296
Cost of sales (excluding depreciation)	133	158
Depreciation	53	39
Finance expense	1	2
Other expenses (income)	(2)	9
Income (loss) before income taxes	130	88
Income tax expense	(27)	(10)
Net income (loss)	103	78
Total comprehensive income (loss)	103	78
Cash and equivalents (note 25a)	43	128
Other current assets (note 18)	67	68
Total current assets	110	196
Non-current assets	464	482
Total assets	574	678
Current financial liabilities (excluding trade, other payables & provisions)	0	48
Other current liabilities	63	41
Total current liabilities	63	89
Non-current financial liabilities (excluding trade, other payables & provisions)	150	331
Other non-current liabilities	14	14
Total non-current liabilities	164	345
Total liabilities	227	434
Total equity	347	244
Zaldívar
Disclosure of joint ventures [line items]
Revenue	685	599
Cost of sales (excluding depreciation)	442	404
Depreciation	172	118
Finance expense	12	0
Other expenses (income)	10	25
Income (loss) before income taxes	49	52
Income tax expense	(17)	(24)
Net income (loss)	32	28
Total comprehensive income (loss)	32	28
Cash and equivalents (note 25a)	139	129
Other current assets (note 18)	632	602
Total current assets	771	731
Non-current assets	1,823	1,927
Total assets	2,594	2,658
Current financial liabilities (excluding trade, other payables & provisions)	19	18
Other current liabilities	99	85
Total current liabilities	118	103
Non-current financial liabilities (excluding trade, other payables & provisions)	11	12
Other non-current liabilities	536	546
Total non-current liabilities	547	558
Total liabilities	665	661
Total equity	1,929	1,997
Current inventories	$ 543	$ 533

INVESTMENTS - Reconciliation of

INVESTMENTS - Reconciliation of Summarized Financial Information to Carrying Value (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of joint ventures [line items]
Beginning balance	$ 9,385	$ 11,131
Net income (loss)	4,574	(1,435)
Ending balance	29,827	9,385
Carrying value	4,527	1,234
Kibali [Member]
Disclosure of joint ventures [line items]
Beginning balance	0
Acquisition	4,632
Net income (loss)	194	0
Investments accounted for using equity method, dividend	(150)
Ending balance	4,676	0
Barrick's share of net assets	2,107
Equity earnings adjustment	0
Goodwill recognition	1,111
Carrying value	3,218	0	$ 0
Jabal Sayid
Disclosure of joint ventures [line items]
Beginning balance	244
Acquisition	0
Net income (loss)	103	78
Investments accounted for using equity method, dividend	0
Ending balance	347	244
Barrick's share of net assets	173
Equity earnings adjustment	0
Goodwill recognition	123
Carrying value	296	245	206
Loans receivable from related party	75
Zaldívar
Disclosure of joint ventures [line items]
Beginning balance	1,997
Acquisition	0
Net income (loss)	32	28
Investments accounted for using equity method, dividend	(100)
Ending balance	1,929	1,997
Barrick's share of net assets	965
Equity earnings adjustment	(10)
Goodwill recognition	0
Carrying value	$ 955	$ 989	$ 975

INVENTORIES - Inventories By Ty

INVENTORIES - Inventories By Type (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Detailed Information About Inventory [Line Items]
Ore in Stockpiles	$ 2,949	$ 2,257
Ore on Leach pads	507	405
Current inventories	2,289	1,852
Gold[member]
Disclosure of Detailed Information About Inventory [Line Items]
Ore in Stockpiles	2,794	2,106
Ore on Leach pads	507	405
Mine operating supplies	617	496
Work in process	141	146
Finished products	220	176
Inventories	4,279	3,329
Non-current ore in stockpiles	(2,300)	(1,696)
Current inventories	1,979	1,633
Copper
Disclosure of Detailed Information About Inventory [Line Items]
Ore in Stockpiles	155	151
Ore on Leach pads	0	0
Mine operating supplies	52	66
Work in process	0	0
Finished products	103	2
Inventories	310	219
Non-current ore in stockpiles	0	0
Current inventories	$ 310	$ 219

INVENTORIES - Inventory Impairm

INVENTORIES - Inventory Impairment Charges (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of operating segments [line items]
Inventory impairment charges	$ 26	$ 199
Lagunas Norte
Disclosure of operating segments [line items]
Inventory impairment charges	0	166
Lumwana
Disclosure of operating segments [line items]
Inventory impairment charges	0	18
Golden Sunlight
Disclosure of operating segments [line items]
Inventory impairment charges	4	10
Porgera
Disclosure of operating segments [line items]
Inventory impairment charges	0	1
Pierina
Disclosure of operating segments [line items]
Inventory impairment charges	12	4
Carlin
Disclosure of operating segments [line items]
Inventory impairment charges	6	0
Cortez
Disclosure of operating segments [line items]
Inventory impairment charges	$ 4	$ 0

INVENTORIES - Ore in Stockpiles

INVENTORIES - Ore in Stockpiles and on Leach Pads (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of operating segments [line items]
Ore in Stockpiles	$ 2,949	$ 2,257
Ore on Leach pads	507	405
Gold[member]
Disclosure of operating segments [line items]
Ore in Stockpiles	2,794	2,106
Ore on Leach pads	507	405
Gold[member] | Carlin
Disclosure of operating segments [line items]
Ore in Stockpiles	1,136	841
Ore on Leach pads	64	0
Gold[member] | Pueblo Viejo
Disclosure of operating segments [line items]
Ore in Stockpiles	649	603
Gold[member] | Loulo Gounkoto
Disclosure of operating segments [line items]
Ore in Stockpiles	167	0
Gold[member] | Porgera
Disclosure of operating segments [line items]
Ore in Stockpiles	33	37
Gold[member] | Lagunas Norte
Disclosure of operating segments [line items]
Ore in Stockpiles	73	49
Ore on Leach pads	148	168
Gold[member] | Buzwagi
Disclosure of operating segments [line items]
Ore in Stockpiles	47	83
Gold[member] | Phoenix
Disclosure of operating segments [line items]
Ore in Stockpiles	39	0
Ore on Leach pads	44	0
Gold[member] | Long Canyon
Disclosure of operating segments [line items]
Ore on Leach pads	43	0
Gold[member] | North Mara
Disclosure of operating segments [line items]
Ore in Stockpiles	136	70
Gold[member] | Veladero
Disclosure of operating segments [line items]
Ore in Stockpiles	52	39
Ore on Leach pads	123	138
Gold[member] | Tongon
Disclosure of operating segments [line items]
Ore in Stockpiles	29	0
Gold[member] | Kalgoorlie
Disclosure of operating segments [line items]
Ore in Stockpiles	0	125
Gold[member] | Turquoise Ridge
Disclosure of operating segments [line items]
Ore in Stockpiles	258	13
Ore on Leach pads	33	0
Gold[member] | Cortez
Disclosure of operating segments [line items]
Ore in Stockpiles	174	242
Ore on Leach pads	50	81
Gold[member] | Other
Disclosure of operating segments [line items]
Ore in Stockpiles	1	4
Gold[member] | Pierina
Disclosure of operating segments [line items]
Ore on Leach pads	2	18
Copper
Disclosure of operating segments [line items]
Ore in Stockpiles	155	151
Ore on Leach pads	0	0
Copper | Lumwana
Disclosure of operating segments [line items]
Ore in Stockpiles	$ 155	$ 151

INVENTORIES - Narrative (Detail

INVENTORIES - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Inventories [Abstract]
Purchase obligation for supplies and consumables	$ 1,681	$ 1,972

ACCOUNTS RECEIVABLE AND OTHER_3

ACCOUNTS RECEIVABLE AND OTHER CURRENT ASSETS (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Accounts receivable
Amounts due from concentrate sales	$ 68	$ 76
Other receivables	295	172
Accounts receivable	363	248
Other current assets
Derivative assets	1	2
Goods and services taxes recoverable	302	182
Prepaid expenses	174	72
Other2	88	51
Other current assets	565	307
Disclosure of Trade Receivable and Other Current Assets [Line Items]
Deferred tax assets	235	259
MALI
Disclosure of Trade Receivable and Other Current Assets [Line Items]
VAT and fuel tax recoverables	141	0
Tanzania
Disclosure of Trade Receivable and Other Current Assets [Line Items]
VAT and fuel tax recoverables	61	67
Zambia
Disclosure of Trade Receivable and Other Current Assets [Line Items]
VAT and fuel tax recoverables	50	60
Zambia
Disclosure of Trade Receivable and Other Current Assets [Line Items]
VAT and fuel tax recoverables	26	22
Dominican Republic
Disclosure of Trade Receivable and Other Current Assets [Line Items]
VAT and fuel tax recoverables	$ 10	$ 12

PROPERTY, PLANT AND EQUIPMENT -

PROPERTY, PLANT AND EQUIPMENT - Property, Plant and Equipment by Type (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	$ 12,826	$ 13,806
Additions	5,127	1,228
Interest costs capitalized	14	9
Acquisitions through business combinations, property, plant and equipment	7,403
Decrease through classified as held for sale, property, plant and equipment	(356)
Disposals	(22)	(7)
Depreciation	(2,014)	(1,562)
Impairment reversals (charges)	(1,423)	(648)
Transfers	0	0
Property, plant and equipment	24,141	12,826
Cost
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	50,984	49,784
Property, plant and equipment	61,862	50,984
Accumulated depreciation and impairments
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	(38,158)	(35,978)
Property, plant and equipment	(37,721)	(38,158)
Buildings, plant and equipment1
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	3,600	4,213
Additions	298	(21)
Interest costs capitalized	0	0
Acquisitions through business combinations, property, plant and equipment	3,473
Decrease through classified as held for sale, property, plant and equipment	0
Disposals	(22)	(7)
Depreciation	(1,107)	(790)
Impairment reversals (charges)	(990)	(394)
Transfers	648	599
Property, plant and equipment	7,753	3,600
Buildings, plant and equipment1 | Cost
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	14,750	14,209
Property, plant and equipment	18,544	14,750
Buildings, plant and equipment1 | Accumulated depreciation and impairments
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	(11,150)	(9,996)
Property, plant and equipment	(10,791)	(11,150)
MIning property costs subject to depreciation
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	6,258	6,522
Additions	3,458	199
Interest costs capitalized	0	0
Acquisitions through business combinations, property, plant and equipment	2,270
Decrease through classified as held for sale, property, plant and equipment	0
Disposals	0	0
Depreciation	(907)	(772)
Impairment reversals (charges)	(742)	(178)
Transfers	573	487
Property, plant and equipment	12,288	6,258
MIning property costs subject to depreciation | Cost
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	21,624	20,938
Property, plant and equipment	27,268	21,624
MIning property costs subject to depreciation | Accumulated depreciation and impairments
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	(15,366)	(14,416)
Property, plant and equipment	(14,980)	(15,366)
MIning property costs not subject to depreciation
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	2,968	3,071
Additions	1,371	1,050
Interest costs capitalized	14	9
Acquisitions through business combinations, property, plant and equipment	1,660
Decrease through classified as held for sale, property, plant and equipment	(356)
Disposals	0	0
Depreciation	0	0
Impairment reversals (charges)	309	(76)
Transfers	(1,221)	(1,086)
Property, plant and equipment	4,100	2,968
MIning property costs not subject to depreciation | Cost
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	14,610	14,637
Property, plant and equipment	16,050	14,610
MIning property costs not subject to depreciation | Accumulated depreciation and impairments
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	(11,642)	(11,566)
Property, plant and equipment	(11,950)	$ (11,642)
KCGM [Member]
Reconciliation of changes in property, plant and equipment [abstract]
Disposals	260
KCGM [Member] | Buildings, plant and equipment1
Reconciliation of changes in property, plant and equipment [abstract]
Disposals	127
KCGM [Member] | MIning property costs subject to depreciation
Reconciliation of changes in property, plant and equipment [abstract]
Disposals	106
KCGM [Member] | MIning property costs not subject to depreciation
Reconciliation of changes in property, plant and equipment [abstract]
Disposals	$ 27

PROPERTY, PLANT AND EQUIPMENT_2

PROPERTY, PLANT AND EQUIPMENT - Mineral Property Costs Not Subject to Depreciation (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment (note 19)	$ 24,141	$ 12,826	$ 13,806
MIning property costs not subject to depreciation
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment (note 19)	4,100	2,968	$ 3,071
MIning property costs not subject to depreciation | Norte Abierto Project
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment (note 19)	649	639
MIning property costs not subject to depreciation | Donlin Gold
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment (note 19)	184	174
MIning property costs not subject to depreciation | Pascua-Lama
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment (note 19)	754	1,245
Construction-in-progress
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment (note 19)	1,009	786
Acquired mineral resources and exploration potential
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment (note 19)	$ 1,504	$ 124

PROPERTY, PLANT AND EQUIPMENT_3

PROPERTY, PLANT AND EQUIPMENT - Narrative (Details) - USD ($) $ in Millions	Nov. 28, 2019	Jan. 01, 2019	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about property, plant and equipment [line items]
Additions to right-of-use assets			$ 49
Depreciation, right-of-use assets			(25)
Right-of-use assets		$ 85	75
Additions other than through business combinations, property, plant and equipment			5,127	$ 1,228
Expense relating to short-term leases for which recognition exemption has been used		(6)	56
Expense relating to variable lease payments not included in measurement of lease liabilities		$ 38	97
MIning property costs subject to depreciation
Disclosure of detailed information about property, plant and equipment [line items]
Additions other than through business combinations, property, plant and equipment			3,458	199
MIning property costs subject to depreciation | Revision of LOM Plan
Disclosure of detailed information about property, plant and equipment [line items]
Accumulated expense decrease			49	85
Construction activities
Disclosure of detailed information about property, plant and equipment [line items]
Capital commitments			$ 383	82
Turquoise Ridge
Disclosure of detailed information about property, plant and equipment [line items]
Additions other than through business combinations, property, plant and equipment				$ 3,422
KCGM [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Proportion of Ownership Interest Sold	50.00%

GOODWILL AND OTHER INTANGIBLE_3

GOODWILL AND OTHER INTANGIBLE ASSETS - Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of changes in intangible assets other than goodwill [abstract]
Intangible assets, beginning balance	$ 227	$ 255
Additions other than through business combinations, intangible assets other than goodwill	1
Amortization	(2)	(28)
Intangible assets, ending balance	226	227
Cost
Reconciliation of changes in intangible assets other than goodwill [abstract]
Intangible assets, ending balance	426
Accumulated amortization and impairment losses
Reconciliation of changes in intangible assets other than goodwill [abstract]
Intangible assets, ending balance	200
Water rights
Reconciliation of changes in intangible assets other than goodwill [abstract]
Intangible assets, beginning balance	71	71
Additions other than through business combinations, intangible assets other than goodwill	1
Amortization	0	0
Intangible assets, ending balance	72	71
Water rights | Cost
Reconciliation of changes in intangible assets other than goodwill [abstract]
Intangible assets, ending balance	72
Water rights | Accumulated amortization and impairment losses
Reconciliation of changes in intangible assets other than goodwill [abstract]
Intangible assets, ending balance	0
Technology
Reconciliation of changes in intangible assets other than goodwill [abstract]
Intangible assets, beginning balance	8	9
Additions other than through business combinations, intangible assets other than goodwill	0
Amortization	(1)	(1)
Intangible assets, ending balance	7	8
Technology | Cost
Reconciliation of changes in intangible assets other than goodwill [abstract]
Intangible assets, ending balance	17
Technology | Accumulated amortization and impairment losses
Reconciliation of changes in intangible assets other than goodwill [abstract]
Intangible assets, ending balance	10
Supply contracts
Reconciliation of changes in intangible assets other than goodwill [abstract]
Intangible assets, beginning balance	8	11
Additions other than through business combinations, intangible assets other than goodwill	0
Amortization	(1)	(3)
Intangible assets, ending balance	7	8
Supply contracts | Cost
Reconciliation of changes in intangible assets other than goodwill [abstract]
Intangible assets, ending balance	39
Supply contracts | Accumulated amortization and impairment losses
Reconciliation of changes in intangible assets other than goodwill [abstract]
Intangible assets, ending balance	32
Exploration potential
Reconciliation of changes in intangible assets other than goodwill [abstract]
Intangible assets, beginning balance	140	164
Additions other than through business combinations, intangible assets other than goodwill	0
Amortization	0	(24)
Intangible assets, ending balance	140	$ 140
Exploration potential | Cost
Reconciliation of changes in intangible assets other than goodwill [abstract]
Intangible assets, ending balance	298
Exploration potential | Accumulated amortization and impairment losses
Reconciliation of changes in intangible assets other than goodwill [abstract]
Intangible assets, ending balance	$ 158

GOODWILL AND OTHER INTANGIBLE_4

GOODWILL AND OTHER INTANGIBLE ASSETS - Goodwill (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Reconciliation of changes in goodwill [abstract]
Goodwill, beginning balance	$ 1,176
Acquisitions through business combinations, intangible assets and goodwill	3,664
Goodwill derecognised without having previously been included in disposal group classified as held for sale	71
Goodwill, ending balance	4,769
Carlin
Reconciliation of changes in goodwill [abstract]
Goodwill, beginning balance	0
Acquisitions through business combinations, intangible assets and goodwill	1,294
Goodwill derecognised without having previously been included in disposal group classified as held for sale	0
Goodwill, ending balance	1,294
Cortez
Reconciliation of changes in goodwill [abstract]
Goodwill, beginning balance	514
Acquisitions through business combinations, intangible assets and goodwill	210
Goodwill derecognised without having previously been included in disposal group classified as held for sale	0
Goodwill, ending balance	724
Turquoise Ridge
Reconciliation of changes in goodwill [abstract]
Goodwill, beginning balance	528
Acquisitions through business combinations, intangible assets and goodwill	194
Goodwill derecognised without having previously been included in disposal group classified as held for sale	0
Goodwill, ending balance	722
Phoenix
Reconciliation of changes in goodwill [abstract]
Goodwill, beginning balance	0
Acquisitions through business combinations, intangible assets and goodwill	119
Goodwill derecognised without having previously been included in disposal group classified as held for sale	0
Goodwill, ending balance	119
Goldrush
Reconciliation of changes in goodwill [abstract]
Goodwill, beginning balance	0
Acquisitions through business combinations, intangible assets and goodwill	175
Goodwill derecognised without having previously been included in disposal group classified as held for sale	0
Goodwill, ending balance	175
Hemlo
Reconciliation of changes in goodwill [abstract]
Goodwill, beginning balance	63
Acquisitions through business combinations, intangible assets and goodwill	0
Goodwill derecognised without having previously been included in disposal group classified as held for sale	0
Goodwill, ending balance	63
Kalgoorlie
Reconciliation of changes in goodwill [abstract]
Goodwill, beginning balance	71
Acquisitions through business combinations, intangible assets and goodwill	0
Goodwill derecognised without having previously been included in disposal group classified as held for sale	(71)
Goodwill, ending balance	0
Loulo Gounkoto
Reconciliation of changes in goodwill [abstract]
Goodwill, beginning balance	0
Acquisitions through business combinations, intangible assets and goodwill	1,672
Goodwill derecognised without having previously been included in disposal group classified as held for sale	0
Goodwill, ending balance	$ 1,672

GOODWILL AND OTHER INTANGIBLE_5

GOODWILL AND OTHER INTANGIBLE ASSETS - Gross Amount and Accumulated Impairment Losses of Goodwill (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Impairments
Goodwill	$ 4,769	$ 1,176
Cost
Impairments
Goodwill	12,211
Accumulated impairment losses
Impairments
Goodwill	$ (7,442)

IMPAIRMENT AND REVERSAL OF NO_3

IMPAIRMENT AND REVERSAL OF NON-CURRENT ASSETS - Impairment Losses (Reversals) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2019	Dec. 31, 2018
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges		$ (1,423)	$ 900
Individual assets | Veladero
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges		0	30
Individual assets | Lumwana
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges		(947)	0
Individual assets | Pueblo Viejo
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges		(865)	0
Individual assets | Pascua-Lama
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges		296	(7)
Individual assets | Cortez
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges		57	9
Individual assets | Lagunas Norte
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges	$ 405	12	405
Individual assets | Golden sunlight
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges		9	0
Individual assets | Veladero
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges		3	246
Individual assets | Carlin [Member]
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges		2	5
Individual assets | Acacia exploration sites
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges		0	24
Individual assets | Other
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges		10	34
Impairment (reversals) of long lived assets
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges		(1,423)	746
Goodwill
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges		0	154
Goodwill | Veladero
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges		$ 0	$ 154

IMPAIRMENT AND REVERSAL OF NO_4

IMPAIRMENT AND REVERSAL OF NON-CURRENT ASSETS - Narrative (Details)	Jan. 24, 2020Rate	Jan. 01, 2020Rate	Sep. 17, 2019Rateshares	Oct. 19, 2017	Dec. 31, 2019USD ($)Rate	Sep. 30, 2019Rate	Sep. 30, 2018USD ($)	Jun. 30, 2018USD ($)Rate	Jun. 30, 2019USD ($)Rate	Jun. 30, 2018USD ($)$ / ounceRate	Dec. 31, 2017	Jun. 30, 2017	Sep. 30, 2019Rate	Sep. 16, 2019	Dec. 31, 2019USD ($)$ / ounceoztRate	Dec. 31, 2018USD ($)$ / ounce	Jul. 19, 2019shares	May 21, 2019USD ($)Rateshares	Sep. 28, 2018Rate
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges															$ (1,423,000,000)	$ 900,000,000
Percent of ownership request for consideration | Rate																		100.00%
Proportion of ownership interests held by non-controlling interests		16.00%
Non-current assets
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges															(1,423,000,000)	746,000,000
Goodwill
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges															0	154,000,000
Nevada Gold Mines [Member] | Individual assets
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges															$ 60,000,000
Acacia Mining PLC
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Share for share exchange | shares																	0.168	0.153
Proportion of ownership interests held by non-controlling interests | Rate									36.10%
Estimated Mineral Price For Measurement Of Fair Value Less Costs Of Disposal									1,250
Percent share in economic benefit | Rate									50.00%
Recoverable amount																		$ 787,000,000
Veladero
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Duty on export | Rate					12.00%										12.00%
Capped price per USD export					$ 4										$ 4
Veladero | Individual assets
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges															3,000,000	246,000,000
Gains (losses) on subsequent increase in fair value less costs to sell not in excess of recognised cumulative impairment loss or write-down to fair value less costs to sell															674,000,000
Veladero | Goodwill
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges															$ 0	154,000,000
Percentage of entity's revenue | Rate															1.50%
Lagunas Norte | Individual assets
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Discount rate used in current measurement of fair value less costs of disposal | Rate					3.80%										3.80%
Impairment (reversals) charges							$ 405,000,000								$ 12,000,000	405,000,000
Fair Value Less Cost of Disposal							$ 150,000,000
Estimated gold price					$ 1,200										1,200
Lagunas Norte | Inventories [member]
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges															166,000,000
Estimated gold price					$ 1,250										1,250
Lumwana | Individual assets
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges															(947,000,000)	0
Fair Value Less Cost of Disposal															$ 1,400,000,000
Weighted average cost of capital, significant unobservable inputs, assets															10.40%
Pueblo Viejo | Individual assets
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges															$ (865,000,000)	$ 0
Risk Premium used for adjustment due to non-financial risk					2.00%										2.00%
Gold[member]
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Estimated Mineral Price For Measurement Of Fair Value Less Costs Of Disposal | $ / ounce															1,300	1,250
Pascua-Lama | Individual assets
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges															$ 296,000,000
Estimated Mineral Price For Measurement Of Fair Value Less Costs Of Disposal															398,000,000
Lumwana
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Increase in royalty rate | Rate																			1.50%
Royalty on copper production | Rate																			10.00%
Change in royalty rate | Rate															1.50%
Duty on export | Rate					5.00%										5.00%				5.00%
Royalty tax rate | Rate															10.00%
Lumwana | Copper
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Estimated change in mineral price (gold, in dollars per ounce; copper, in dollars per pound) | Rate						3			2.85
Acacia Mining PLC
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Discount rate used in current measurement of fair value less costs of disposal | Rate					11.00%										11.00%
Share for share exchange | shares			0.168
Proportion of ownership interests held by non-controlling interests			36.10%												0.00%
Estimated Mineral Price For Measurement Of Fair Value Less Costs Of Disposal										1,200
Proportion of Ownership Interest Sold | Rate	16.00%
Proportion of ownership interest in subsidiary		84.00%	100.00%		100.00%								63.90%	63.90%
Pueblo Viejo
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Proportion of ownership interests held by non-controlling interests															40.00%
Proportion of ownership interest in subsidiary															60.00%
Minimum | Gold[member]
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Discount rate used in current measurement of fair value less costs of disposal					3.00%										3.00%	4.00%
Estimated Mineral Price For Measurement Of Fair Value Less Costs Of Disposal | ozt															20
Maximum | Gold[member]
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Discount rate used in current measurement of fair value less costs of disposal					7.00%										7.00%	11.00%
Estimated Mineral Price For Measurement Of Fair Value Less Costs Of Disposal | ozt															30
$100 Decrease in Gold Price | Gold[member]
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Estimated change in mineral price (gold, in dollars per ounce; copper, in dollars per pound) | $ / ounce															100
Estimated Fair Value of Asset Impairment					$ 529,000,000										$ 529,000,000
$100 Decrease in Gold Price | Acacia Mining PLC
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges										$ 98
Estimated Mineral Price For Measurement Of Fair Value Less Costs Of Disposal | $ / ounce										100
$0.25 increase in copper
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Estimated Fair Value of Asset Impairment					437,000,000										$ 437,000,000
$100 Increase in Gold Price | Gold[member]
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Estimated change in mineral price (gold, in dollars per ounce; copper, in dollars per pound) | $ / ounce															100
Estimated Fair Value of Asset Impairment					246,000,000										$ 246,000,000
$100 Increase in Gold Price | Acacia Mining PLC
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Estimated Mineral Price For Measurement Of Fair Value Less Costs Of Disposal | $ / ounce										100
Estimated change in WACC (as percent) | Rate										1.00%
$0.25 decrease in copper
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Estimated Mineral Price For Measurement Of Fair Value Less Costs Of Disposal | $ / ounce															0
Estimated Fair Value of Asset Impairment					437,000,000										$ 437,000,000
Negative Ten Percent change in Gold and Silver [Member] | Pascua-Lama
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Estimated Mineral Price For Measurement Of Fair Value Less Costs Of Disposal | $ / ounce															0
Estimated Fair Value of Asset Impairment					40,000,000										$ 40,000,000
Increase/decrease in gold/copper price [Member] | Copper
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Estimated change in mineral price (gold, in dollars per ounce; copper, in dollars per pound) | $ / ounce															0.25
Increase/decrease in gold/copper price [Member] | Gold[member]
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Estimated change in mineral price (gold, in dollars per ounce; copper, in dollars per pound) | $ / ounce															100
Cash-generating units | Bulyanhulu
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Recoverable amount					579,000,000										$ 579,000,000
Cash-generating units | Lumwana
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Recoverable amount					$ 1,307,000,000										$ 1,307,000,000
Tax contingent liability [member] | Tanzanian Revenue Authority Assessment | Acacia Mining PLC
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Economic Benefit Shared With Government	5000.00%			5000.00%
Proportion of ownership interests held by non-controlling interests				16.00%
Royalty tax rate											4.00%	6.00%
Clearing fee on minerals exported											1.00%
OreCorp [Member]
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges								$ 24
Recoverable amount								10		$ 10
Proportion of Ownership Interest Sold | Rate										51.00%
Future consideration to be received								7		$ 7
Net smelter royalty capped								15		$ 15
Proportion of ownership in joint operation | Rate										49.00%
Consideration paid (received)										$ 3
Kabanga [Member]
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges								$ 30,000,000
Proportion of ownership interest in associate | Rate								50.00%
One percent decrease in WACC [Member]
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Weighted average cost of capital, significant unobservable inputs, assets | Rate															1.00%
One percent increase in WACC [Member] | Acacia Mining PLC
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Estimated change in WACC (as percent) | Rate										1.00%
One percent increase/decrease in WACC [Member]
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Weighted average cost of capital, significant unobservable inputs, assets | Rate															1.00%
Minimum | Acacia Mining PLC
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Net assets value multiple									$ 1
Weighted average cost of capital, significant unobservable inputs, assets | Rate									6.50%
Maximum | Acacia Mining PLC
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Net assets value multiple									$ 1.1
Weighted average cost of capital, significant unobservable inputs, assets | Rate									6.90%

IMPAIRMENT AND REVERSAL OF NO_5

IMPAIRMENT AND REVERSAL OF NON-CURRENT ASSETS - Assumptions (Details)	3 Months Ended	6 Months Ended	12 Months Ended
	Sep. 30, 2018USD ($)	Jun. 30, 2018USD ($)$ / ounceRate	Dec. 31, 2019USD ($)$ / ounceozt$ / poundRate	Dec. 31, 2018USD ($)$ / ounce$ / pound
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges			$ (1,423,000,000)	$ 900,000,000
Copper | Average
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
WACC				10.00%
Gold[member]
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Mineral price (gold, in dollars per ounce; copper, in dollars per pound) | $ / ounce			1,300	1,250
LOM year			19 years	15 years
Gold[member] | Average
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
NAV multiple			1,200	1,050
WACC			4.00%	7.00%
Gold[member] | Minimum
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Mineral price (gold, in dollars per ounce; copper, in dollars per pound) | ozt			20
WACC			3.00%	4.00%
Gold[member] | Maximum
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Mineral price (gold, in dollars per ounce; copper, in dollars per pound) | ozt			30
WACC			7.00%	11.00%
Silver | Minimum
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Mineral price (gold, in dollars per ounce; copper, in dollars per pound) | ozt			0.28
Silver | Maximum
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Mineral price (gold, in dollars per ounce; copper, in dollars per pound) | ozt			0.42
Long-term | Copper
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Mineral price (gold, in dollars per ounce; copper, in dollars per pound) | $ / pound			3	2.85
Acacia Mining PLC
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Mineral price (gold, in dollars per ounce; copper, in dollars per pound)		1,200
WACC | Rate			11.00%
Acacia Mining PLC | One percent increase in WACC [Member]
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Estimated Change in Discount Rate Used In Current Measurement Of Fair Value Less Costs Of Disposal | Rate		1.00%
Lagunas Norte | Minimum
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
NAV multiple			1.100
Lagunas Norte | Maximum
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
NAV multiple			1.200
$100 Increase in Gold Price | Acacia Mining PLC
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Mineral price (gold, in dollars per ounce; copper, in dollars per pound) | $ / ounce		100
Estimated Change in Discount Rate Used In Current Measurement Of Fair Value Less Costs Of Disposal | Rate		1.00%
$100 Decrease in Gold Price | Acacia Mining PLC
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Mineral price (gold, in dollars per ounce; copper, in dollars per pound) | $ / ounce		100
Impairment (reversals) charges		$ 98
$0.25 decrease in copper
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Mineral price (gold, in dollars per ounce; copper, in dollars per pound) | $ / ounce			0
Other impaired assets [member] | Lagunas Norte
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges			$ 166,000,000
Estimated gold price			1,250
Impairment (reversals) of long lived assets
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
Impairment (reversals) charges			$ (1,423,000,000)	$ 746,000,000
Individual assets or cash-generating units [member] | Lagunas Norte
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]
WACC | Rate			3.80%
Impairment (reversals) charges	$ 405,000,000		$ 12,000,000	$ 405,000,000
Estimated gold price			$ 1,200

IMPAIRMENT AND REVERSAL OF NO_6

IMPAIRMENT AND REVERSAL OF NON-CURRENT ASSETS - Cash Generating Units (Details) $ in Millions	Dec. 31, 2019USD ($)
Lumwana | Cash-generating units
Disclosure of information for cash-generating units [line items]
Carrying Value	$ 1,307
Bulyanhulu | Cash-generating units
Disclosure of information for cash-generating units [line items]
Carrying Value	579
Veladero [Member] | Cash-generating units
Disclosure of information for cash-generating units [line items]
Carrying Value	692
Loulo Gounkoto | Cash-generating units
Disclosure of information for cash-generating units [line items]
Carrying Value	4,198
Pascua-Lama | Cash-generating units
Disclosure of information for cash-generating units [line items]
Carrying Value	153
Silver Wheaton Corp. | Pascua-Lama
Disclosure of information for cash-generating units [line items]
Carrying Value	$ 253

OTHER ASSETS (Details)

OTHER ASSETS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2014	Dec. 31, 2018
Disclosure of Detailed Information about Other Non-Current Assets [Line Items]
Goods and services taxes recoverable	$ 253		$ 271
Other investments	258		209
Notes receivable	202		285
Norte Abierto JV partner receivable	134		143
Restricted cash	162		121
Derivative assets	30		37
Derivative assets	0		1
Other	153		168
Other non-current assets	1,307		1,235
Zambia
Disclosure of Detailed Information about Other Non-Current Assets [Line Items]
Non-current value added tax receivables	70		110
Tanzania
Disclosure of Detailed Information about Other Non-Current Assets [Line Items]
Non-current value added tax receivables	128		111
Argentina
Disclosure of Detailed Information about Other Non-Current Assets [Line Items]
Non-current value added tax receivables	53		50
Carlin [Member]
Disclosure of Detailed Information about Other Non-Current Assets [Line Items]
Derivative assets	$ 115		$ 0
Jabal Sayid [Member]
Disclosure of Detailed Information about Other Non-Current Assets [Line Items]
Economic interest in joint venture	50.00%
Proportion of Ownership Interest Sold		50.00%

ACCOUNTS PAYABLE (Details)

ACCOUNTS PAYABLE (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Subclassifications of assets, liabilities and equities [abstract]
Accounts payable	$ 715	$ 744
Accruals	440	357
Trade and other current payables	$ 1,155	$ 1,101

OTHER CURRENT LIABILITIES (Deta

OTHER CURRENT LIABILITIES (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Detailed Information about Other Current Liabilities [Line Items]
Provision for environmental rehabilitation (note 27b)	$ 156	$ 111
Deposit on Pascua-Lama silver sale agreement1	0	3
Share-based payments (note 34b)	48	30
Other	90	94
Other current liabilities	622	321
Pascua-Lama
Disclosure of Detailed Information about Other Current Liabilities [Line Items]
Deposit on agreement	253	0
Pueblo Viejo
Disclosure of Detailed Information about Other Current Liabilities [Line Items]
Deposit on agreement	$ 75	$ 83

FINANCIAL INSTRUMENTS - Cash an

FINANCIAL INSTRUMENTS - Cash and Equivalents (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about financial instruments [line items]
Cash and equivalents	$ 3,314	$ 1,571	$ 2,234
Carrying value
Disclosure of detailed information about financial instruments [line items]
Cash deposits	2,571	842
Term deposits	728	477
Money market investments	15	252
Cash and equivalents	3,314	1,571
Carrying value | Cash held in subsidiaries with restrictions
Disclosure of detailed information about financial instruments [line items]
Cash and equivalents	$ 0	$ 383

FINANCIAL INSTRUMENTS - Debt an

FINANCIAL INSTRUMENTS - Debt and Interest (Details) - USD ($)	Jan. 31, 2020	May 02, 2013	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2011	Oct. 16, 2009
Disclosure of detailed information about borrowings [line items]
Borrowings			$ 5,738,000,000	$ 6,423,000,000
Proceeds			0	0
Repayments			(281,000,000)	(687,000,000)
Amortization and other			107,000,000	2,000,000
Borrowings			5,536,000,000	5,738,000,000	$ 6,423,000,000
Less: current portion			(375,000,000)	(43,000,000)	59,000,000
Non-current portion of non-current borrowings			5,161,000,000	5,695,000,000	6,364,000,000
Proceeds from current borrowings			0	0
Proceeds from non-current borrowings			0	0
Less: Repayments of current borrowings			0	0
Repayments of non-current borrowings			(309,000,000)	(687,000,000)
Gross amount
Disclosure of detailed information about borrowings [line items]
Borrowings			5,467,000,000
BNAF Notes Due 2021 and 2041
Disclosure of detailed information about borrowings [line items]
Borrowings			842,000,000	1,468,000,000
Proceeds			0	0
Repayments			0	(629,000,000)
Amortization and other			0	3,000,000
Borrowings			842,000,000	842,000,000	1,468,000,000
BNAF Notes Due 2021
Disclosure of detailed information about borrowings [line items]
Repayments				0		$ (721,000,000)
Borrowings, interest rate (as percent)								4.40%
BNAF Notes Due 2041
Disclosure of detailed information about borrowings [line items]
Borrowings			850,000,000
Borrowings			850,000,000	850,000,000
Borrowings, interest rate (as percent)								5.70%
3.85%/5.25% notes
Disclosure of detailed information about borrowings [line items]
Borrowings			1,079,000,000	1,079,000,000
Proceeds			0	0
Repayments			0	0
Amortization and other			0	0
Borrowings			1,079,000,000	1,079,000,000	1,079,000,000
Less: current portion			$ (336,000,000)	0
Borrowings, interest rate (as percent)			385.00%
5.80% notes
Disclosure of detailed information about borrowings [line items]
Borrowings			$ 395,000,000	395,000,000
Proceeds			0	0
Repayments			0	0
Amortization and other			0	0
Borrowings			395,000,000	395,000,000	395,000,000
Notional amount			$ 400,000,000	400,000,000
Borrowings, interest rate (as percent)			580.00%
6.35% notes
Disclosure of detailed information about borrowings [line items]
Borrowings			$ 594,000,000	593,000,000
Proceeds			0	0
Repayments			0	0
Amortization and other			0	1,000,000
Borrowings			594,000,000	594,000,000	593,000,000
Notional amount			$ 600,000,000	600,000,000
Borrowings, interest rate (as percent)			635.00%
Other fixed rate notes
Disclosure of detailed information about borrowings [line items]
Borrowings			$ 1,326,000,000	1,326,000,000
Proceeds			0	0
Repayments			(248,000,000)	0
Amortization and other			2,000,000	0
Borrowings			1,080,000,000	1,326,000,000	1,326,000,000
BPDAF notes due 2019
Disclosure of detailed information about borrowings [line items]
Borrowings			248,000,000
Repayments			(248,000,000)			(152,000,000)
Borrowings			0	248,000,000
Borrowings, interest rate (as percent)									4.95%
BNAF notes due 2038
Disclosure of detailed information about borrowings [line items]
Borrowings			250,000,000
Borrowings			250,000,000	250,000,000
BPADF Notes Due 2039
Disclosure of detailed information about borrowings [line items]
Borrowings			850,000,000
Borrowings			850,000,000	850,000,000
Borrowings, interest rate (as percent)									5.95%
Capital leases
Disclosure of detailed information about borrowings [line items]
Borrowings			19,000,000	46,000,000
Proceeds			0	0
Repayments			(28,000,000)	(27,000,000)
Amortization and other			105,000,000	0
Borrowings			96,000,000	19,000,000	46,000,000
Less: current portion			(25,000,000)	(11,000,000)
Nevada Gold Mines Capital Leases [Member]
Disclosure of detailed information about borrowings [line items]
Borrowings			0
Borrowings			32,000,000	0
Loulo Capital Leases [Member]
Disclosure of detailed information about borrowings [line items]
Borrowings			0
Borrowings			32,000,000	0
Lumwana Capital Lease [Member]
Disclosure of detailed information about borrowings [line items]
Borrowings			3,000,000
Borrowings			10,000,000	3,000,000
Pascua-Lama Capital Lease
Disclosure of detailed information about borrowings [line items]
Borrowings			9,000,000
Borrowings			6,000,000	9,000,000
Porgera Capital Lease
Disclosure of detailed information about borrowings [line items]
Borrowings			0
Borrowings			5,000,000	0
Other debt obligations
Disclosure of detailed information about borrowings [line items]
Borrowings			598,000,000	603,000,000
Proceeds			0	0
Repayments			(4,000,000)	(3,000,000)
Amortization and other			0	(2,000,000)
Borrowings			594,000,000	598,000,000	603,000,000
Less: current portion			0	(4,000,000)
Other debt obligations | Gross amount
Disclosure of detailed information about borrowings [line items]
Borrowings			0
4.10%/5.75% notes
Disclosure of detailed information about borrowings [line items]
Borrowings			842,000,000	842,000,000
Proceeds			0	0
Repayments			0	0
Amortization and other			0	0
Borrowings			842,000,000	842,000,000	842,000,000
Notional amount			850,000,000	850,000,000
4.10%/5.75% notes | Gross amount
Disclosure of detailed information about borrowings [line items]
Borrowings		$ 3,000,000,000
Acacia Credit Facility
Disclosure of detailed information about borrowings [line items]
Borrowings			43,000,000	71,000,000
Proceeds			0	0
Repayments	$ (14,000,000)		(29,000,000)	(28,000,000)	(28,000,000)	$ (29,000,000)	$ (14,000,000)
Amortization and other			0	0
Borrowings			14,000,000	43,000,000	$ 71,000,000
Less: current portion			(14,000,000)	$ (28,000,000)
Acacia Credit Facility | Gross amount
Disclosure of detailed information about borrowings [line items]
Borrowings			14,000,000
Consolidated total [Member]
Disclosure of detailed information about borrowings [line items]
Repayments			$ (309,000,000)

FINANCIAL INSTRUMENTS - Debt Na

FINANCIAL INSTRUMENTS - Debt Narrative (Details) - USD ($)

Jan. 31, 2020

May 02, 2013

Oct. 16, 2009

Jan. 31, 2013

Sep. 30, 2008

Dec. 31, 2019

Dec. 31, 2018

Dec. 31, 2017

Dec. 31, 2016

Dec. 31, 2015

Nov. 30, 2019

Apr. 03, 2012

Jun. 30, 2011

Disclosure of detailed information about borrowings [line items]

Borrowings

$ 5,536,000,000

$ 5,738,000,000

$ 6,423,000,000

Repayments

281,000,000

687,000,000

BNAF Notes Due 2021

Disclosure of detailed information about borrowings [line items]

Borrowings, interest rate (as percent)

4.40%

Repayments

0

$ 721,000,000

BNAF Notes Due 2041

Disclosure of detailed information about borrowings [line items]

Borrowings, interest rate (as percent)

5.70%

Borrowings

$ 850,000,000

850,000,000

3.85%/5.25% Notes

Disclosure of detailed information about borrowings [line items]

Borrowings, interest rate (as percent)

385.00%

Borrowings

$ 1,079,000,000

1,079,000,000

1,079,000,000

Repayments

$ 0

$ 0

Effective rate (as percent)

4.87%

4.87%

3.85% Notes

Disclosure of detailed information about borrowings [line items]

Borrowings, interest rate (as percent)

3.85%

3.85%

Repayments

$ 337,000,000

$ 913,000,000

5.25% Notes

Disclosure of detailed information about borrowings [line items]

Borrowings, interest rate (as percent)

5.25%

Other fixed rate notes

Disclosure of detailed information about borrowings [line items]

Borrowings

$ 1,080,000,000

$ 1,326,000,000

1,326,000,000

Repayments

$ 248,000,000

$ 0

Effective rate (as percent)

6.33%

6.16%

BPADF Notes Due 2039

Disclosure of detailed information about borrowings [line items]

Borrowings, interest rate (as percent)

5.95%

Borrowings

$ 850,000,000

$ 850,000,000

Term of borrowings

30 years

BPDAF Notes Due 2019

Disclosure of detailed information about borrowings [line items]

Borrowings, interest rate (as percent)

4.95%

Borrowings

0

248,000,000

Repayments

$ 248,000,000

152,000,000

Term of borrowings

10 years

7.50% Notes Due 2038

Disclosure of detailed information about borrowings [line items]

Borrowings, interest rate (as percent)

7.50%

Term of borrowings

30 years

Credit Facility Due 2025

Disclosure of detailed information about borrowings [line items]

Basis spread (as percent)

1.25%

Commitment fee (as percent)

0.15%

Credit Facility Due 2021

Disclosure of detailed information about borrowings [line items]

Repayments

$ 2,000,000,000

4.10%/5.75% notes

Disclosure of detailed information about borrowings [line items]

Borrowings

$ 842,000,000

842,000,000

842,000,000

Repayments

0

0

5.75% Notes

Disclosure of detailed information about borrowings [line items]

Borrowings, interest rate (as percent)

5.75%

Acacia Credit Facility

Disclosure of detailed information about borrowings [line items]

Borrowings

14,000,000

43,000,000

71,000,000

Repayments

$ 14,000,000

$ 29,000,000

$ 28,000,000

$ 28,000,000

$ 29,000,000

$ 14,000,000

Term of borrowings

7 years

Repayment holiday period

2 years

Effective rate (as percent)

3.36%

3.59%

Gross amount

Disclosure of detailed information about borrowings [line items]

Borrowings

$ 5,467,000,000

Gross amount | BNAF Notes

Disclosure of detailed information about borrowings [line items]

Borrowings

$ 4,000,000,000

Gross amount | BNAF Notes Due 2021

Disclosure of detailed information about borrowings [line items]

Borrowings

1,350,000,000

Gross amount | BNAF Notes Due 2041

Disclosure of detailed information about borrowings [line items]

Borrowings

$ 850,000,000

Gross amount | 3.85%/5.25% Notes

Disclosure of detailed information about borrowings [line items]

Borrowings

$ 2,000,000,000

Gross amount | 3.85% Notes

Disclosure of detailed information about borrowings [line items]

Borrowings

337,000,000

1,250,000,000

Gross amount | 5.25% Notes

Disclosure of detailed information about borrowings [line items]

Borrowings

750,000,000

$ 750,000,000

Gross amount | Other fixed rate notes

Disclosure of detailed information about borrowings [line items]

Borrowings

$ 1,250,000,000

Gross amount | BPADF Notes Due 2039

Disclosure of detailed information about borrowings [line items]

Borrowings

850,000,000

Gross amount | BPDAF Notes Due 2019

Disclosure of detailed information about borrowings [line items]

Borrowings

$ 400,000,000

Gross amount | LLCs Notes Due 2013, Due 2019 and Due 2038

Disclosure of detailed information about borrowings [line items]

Borrowings

$ 1,250,000,000

Gross amount | 7.50% Notes Due 2038

Disclosure of detailed information about borrowings [line items]

Borrowings

$ 250,000,000

250,000,000

Gross amount | Credit Facility Due 2025

Disclosure of detailed information about borrowings [line items]

Credit facility available

$ 3,000,000,000

Gross amount | 4.10%/5.75% notes

Disclosure of detailed information about borrowings [line items]

Borrowings

$ 3,000,000,000

Gross amount | 5.75% Notes

Disclosure of detailed information about borrowings [line items]

Borrowings

$ 850,000,000

850,000,000

Gross amount | Acacia Credit Facility

Disclosure of detailed information about borrowings [line items]

Borrowings

$ 14,000,000

Credit facility available

$ 142,000,000

Acacia Credit Facility Floating Interest Rate | Acacia Credit Facility

Disclosure of detailed information about borrowings [line items]

Basis spread (as percent)

2.50%

FINANCIAL INSTRUMENTS - Debt In

FINANCIAL INSTRUMENTS - Debt Interest Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about borrowings [line items]
Interest cost	$ 436	$ 453
Borrowing costs capitalised	(14)	(9)
Interest costs capitalized	14	9
Interest cost incurred	422	444
Deposits on Pascua-Lama silver sale agreement (note 29)
Disclosure of detailed information about borrowings [line items]
Interest cost	$ 70	$ 65
Effective rate (as percent)	8.75%	8.25%
Deposits on Pueblo Viejo gold and silver streaming agreement (note 29)
Disclosure of detailed information about borrowings [line items]
Interest cost	$ 34	$ 33
Effective rate (as percent)	6.79%	6.41%
4.4%/5.7% notes
Disclosure of detailed information about borrowings [line items]
Interest cost	$ 49	$ 63
Effective rate (as percent)	5.74%	5.25%
3.85%/5.25% notes
Disclosure of detailed information about borrowings [line items]
Interest cost	$ 53	$ 53
Effective rate (as percent)	4.87%	4.87%
5.80% notes
Disclosure of detailed information about borrowings [line items]
Interest cost	$ 23	$ 23
Effective rate (as percent)	5.87%	5.85%
6.35% notes
Disclosure of detailed information about borrowings [line items]
Interest cost	$ 38	$ 39
Effective rate (as percent)	6.41%	6.41%
Other fixed rate notes
Disclosure of detailed information about borrowings [line items]
Interest cost	$ 77	$ 83
Effective rate (as percent)	6.33%	6.16%
Capital leases
Disclosure of detailed information about borrowings [line items]
Interest cost	$ 6	$ 2
Effective rate (as percent)	7.14%	6.18%
Other debt obligations
Disclosure of detailed information about borrowings [line items]
Interest cost	$ 34	$ 38
Effective rate (as percent)	6.17%	6.55%
Five Point Seven Five Notes [Member]
Disclosure of detailed information about borrowings [line items]
Interest cost	$ 49	$ 49
Effective rate (as percent)	5.79%	5.79%
Acacia Credit Facility
Disclosure of detailed information about borrowings [line items]
Interest cost	$ 3	$ 5
Effective rate (as percent)	3.36%	3.59%

FINANCIAL INSTRUMENTS - Schedul

FINANCIAL INSTRUMENTS - Scheduled Debt Repayments (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	May 02, 2013	Apr. 03, 2012	Sep. 30, 2008
Disclosure of detailed information about borrowings [line items]
Borrowings	$ 5,536,000,000	$ 5,738,000,000	$ 6,423,000,000
Minimum annual payments under leases	97,000,000
Other debt obligations
Disclosure of detailed information about borrowings [line items]
Borrowings	594,000,000	598,000,000	603,000,000
Acacia credit facility
Disclosure of detailed information about borrowings [line items]
Borrowings	14,000,000	$ 43,000,000	$ 71,000,000
2019
Disclosure of detailed information about borrowings [line items]
Minimum annual payments under leases	25,000,000
2020
Disclosure of detailed information about borrowings [line items]
Minimum annual payments under leases	15,000,000
2021
Disclosure of detailed information about borrowings [line items]
Minimum annual payments under leases	12,000,000
2022
Disclosure of detailed information about borrowings [line items]
Minimum annual payments under leases	8,000,000
2023
Disclosure of detailed information about borrowings [line items]
Minimum annual payments under leases	5,000,000
2024 and thereafter
Disclosure of detailed information about borrowings [line items]
Minimum annual payments under leases	32,000,000
Gross amount
Disclosure of detailed information about borrowings [line items]
Borrowings	5,467,000,000
Gross amount | 7.31% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	7,000,000
Gross amount | 3.85% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	337,000,000				$ 1,250,000,000
Gross amount | 7.73% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	7,000,000
Gross amount | 7.70% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	5,000,000
Gross amount | 7.37% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	32,000,000
Gross amount | 8.05% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	15,000,000
Gross amount | 6.38% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	200,000,000
Gross amount | 5.80% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	200,000,000
Gross amount | 5.80% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	200,000,000
Gross amount | 6.45% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	300,000,000
Gross amount | 6.35% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	600,000,000
Gross amount | 7.50% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	250,000,000					$ 250,000,000
Gross amount | 5.95% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	850,000,000
Gross amount | 5.70% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	850,000,000
Gross amount | 5.25% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	750,000,000				$ 750,000,000
Gross amount | 5.75% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	850,000,000			$ 850,000,000
Gross amount | Other debt obligations
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | Acacia credit facility
Disclosure of detailed information about borrowings [line items]
Borrowings	14,000,000
Gross amount | 2019
Disclosure of detailed information about borrowings [line items]
Borrowings	14,000,000
Gross amount | 2019 | 7.31% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2019 | 3.85% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2019 | 7.73% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2019 | 7.70% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2019 | 7.37% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2019 | 8.05% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2019 | 6.38% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2019 | 5.80% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2019 | 5.80% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2019 | 6.45% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2019 | 6.35% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2019 | 7.50% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2019 | 5.95% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2019 | 5.70% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2019 | 5.25% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2019 | 5.75% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2019 | Other debt obligations
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2019 | Acacia credit facility
Disclosure of detailed information about borrowings [line items]
Borrowings	14,000,000
Gross amount | 2020
Disclosure of detailed information about borrowings [line items]
Borrowings	7,000,000
Gross amount | 2020 | 7.31% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	7,000,000
Gross amount | 2020 | 3.85% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2020 | 7.73% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2020 | 7.70% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2020 | 7.37% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2020 | 8.05% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2020 | 6.38% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2020 | 5.80% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2020 | 5.80% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2020 | 6.45% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2020 | 6.35% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2020 | 7.50% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2020 | 5.95% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2020 | 5.70% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2020 | 5.25% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2020 | 5.75% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2020 | Other debt obligations
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2020 | Acacia credit facility
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2021
Disclosure of detailed information about borrowings [line items]
Borrowings	337,000,000
Gross amount | 2021 | 7.31% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2021 | 3.85% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	337,000,000
Gross amount | 2021 | 7.73% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2021 | 7.70% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2021 | 7.37% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2021 | 8.05% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2021 | 6.38% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2021 | 5.80% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2021 | 5.80% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2021 | 6.45% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2021 | 6.35% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2021 | 7.50% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2021 | 5.95% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2021 | 5.70% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2021 | 5.25% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2021 | 5.75% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2021 | Other debt obligations
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2021 | Acacia credit facility
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2022
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2022 | 7.31% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2022 | 3.85% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2022 | 7.73% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2022 | 7.70% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2022 | 7.37% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2022 | 8.05% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2022 | 6.38% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2022 | 5.80% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2022 | 5.80% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2022 | 6.45% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2022 | 6.35% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2022 | 7.50% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2022 | 5.95% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2022 | 5.70% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2022 | 5.25% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2022 | 5.75% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2022 | Other debt obligations
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2022 | Acacia credit facility
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2023
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2023 | 7.31% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2023 | 3.85% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2023 | 7.73% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2023 | 7.70% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2023 | 7.37% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2023 | 8.05% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2023 | 6.38% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2023 | 5.80% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2023 | 5.80% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2023 | 6.45% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2023 | 6.35% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2023 | 7.50% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2023 | 5.95% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2023 | 5.70% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2023 | 5.25% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2023 | 5.75% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2023 | Other debt obligations
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2023 | Acacia credit facility
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2024 and thereafter
Disclosure of detailed information about borrowings [line items]
Borrowings	5,109,000,000
Gross amount | 2024 and thereafter | 7.31% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2024 and thereafter | 3.85% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2024 and thereafter | 7.73% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	7,000,000
Gross amount | 2024 and thereafter | 7.70% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	5,000,000
Gross amount | 2024 and thereafter | 7.37% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	32,000,000
Gross amount | 2024 and thereafter | 8.05% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	15,000,000
Gross amount | 2024 and thereafter | 6.38% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	200,000,000
Gross amount | 2024 and thereafter | 5.80% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	200,000,000
Gross amount | 2024 and thereafter | 5.80% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	200,000,000
Gross amount | 2024 and thereafter | 6.45% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	300,000,000
Gross amount | 2024 and thereafter | 6.35% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	600,000,000
Gross amount | 2024 and thereafter | 7.50% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	250,000,000
Gross amount | 2024 and thereafter | 5.95% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	850,000,000
Gross amount | 2024 and thereafter | 5.70% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	850,000,000
Gross amount | 2024 and thereafter | 5.25% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	750,000,000
Gross amount | 2024 and thereafter | 5.75% notes
Disclosure of detailed information about borrowings [line items]
Borrowings	850,000,000
Gross amount | 2024 and thereafter | Other debt obligations
Disclosure of detailed information about borrowings [line items]
Borrowings	0
Gross amount | 2024 and thereafter | Acacia credit facility
Disclosure of detailed information about borrowings [line items]
Borrowings	$ 0

FINANCIAL INSTRUMENTS - Summary

FINANCIAL INSTRUMENTS - Summary of Derivatives (Details)	Dec. 31, 2019USD ($)
Interest rate contracts
Disclosure of detailed information about financial instruments [line items]
Notional amount	$ 0

FAIR VALUE MEASUREMENTS - Asset

FAIR VALUE MEASUREMENTS - Assets and Liabilities Measured on Recurring Basis at Aggregate Fair Value (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of fair value measurement of assets [line items]
Assets	$ 44,392	$ 22,631
Liabilities	(14,565)	(13,246)
Recurring fair value measurement
Disclosure of fair value measurement of assets [line items]
Assets (liabilities)	3,641	1,856
Recurring fair value measurement | Quoted Prices in Active Markets for Identical Assets (Level 1)
Disclosure of fair value measurement of assets [line items]
Assets (liabilities)	3,572	1,780
Recurring fair value measurement | Significant Other Observable Inputs (Level 2)
Disclosure of fair value measurement of assets [line items]
Assets (liabilities)	69	76
Recurring fair value measurement | Significant Unobservable Inputs (Level 3)
Disclosure of fair value measurement of assets [line items]
Assets (liabilities)	0	0
Recurring fair value measurement | Derivatives
Disclosure of fair value measurement of assets [line items]
Liabilities	1	0
Recurring fair value measurement | Derivatives | Quoted Prices in Active Markets for Identical Assets (Level 1)
Disclosure of fair value measurement of assets [line items]
Liabilities	0	0
Recurring fair value measurement | Derivatives | Significant Other Observable Inputs (Level 2)
Disclosure of fair value measurement of assets [line items]
Liabilities	1	0
Recurring fair value measurement | Derivatives | Significant Unobservable Inputs (Level 3)
Disclosure of fair value measurement of assets [line items]
Liabilities	0	0
Recurring fair value measurement | Cash and equivalents
Disclosure of fair value measurement of assets [line items]
Assets	3,314	1,571
Recurring fair value measurement | Cash and equivalents | Quoted Prices in Active Markets for Identical Assets (Level 1)
Disclosure of fair value measurement of assets [line items]
Assets	3,314	1,571
Recurring fair value measurement | Cash and equivalents | Significant Other Observable Inputs (Level 2)
Disclosure of fair value measurement of assets [line items]
Assets	0	0
Recurring fair value measurement | Cash and equivalents | Significant Unobservable Inputs (Level 3)
Disclosure of fair value measurement of assets [line items]
Assets	0	0
Recurring fair value measurement | Other investments [Member]
Disclosure of fair value measurement of assets [line items]
Assets	258	209
Recurring fair value measurement | Other investments [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Disclosure of fair value measurement of assets [line items]
Assets	258	209
Recurring fair value measurement | Other investments [Member] | Significant Other Observable Inputs (Level 2)
Disclosure of fair value measurement of assets [line items]
Assets	0	0
Recurring fair value measurement | Other investments [Member] | Significant Unobservable Inputs (Level 3)
Disclosure of fair value measurement of assets [line items]
Assets	0	0
Recurring fair value measurement | Receivables from provisional copper and gold sales [Member]
Disclosure of fair value measurement of assets [line items]
Assets	68	76
Recurring fair value measurement | Receivables from provisional copper and gold sales [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Disclosure of fair value measurement of assets [line items]
Assets	0	0
Recurring fair value measurement | Receivables from provisional copper and gold sales [Member] | Significant Other Observable Inputs (Level 2)
Disclosure of fair value measurement of assets [line items]
Assets	68	76
Recurring fair value measurement | Receivables from provisional copper and gold sales [Member] | Significant Unobservable Inputs (Level 3)
Disclosure of fair value measurement of assets [line items]
Assets	$ 0	$ 0

FAIR VALUE MEASUREMENTS - Ass_2

FAIR VALUE MEASUREMENTS - Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Carrying amount
Disclosure Of Fair Value Measurement Of Assets And Liabilities1 [Line Items]
Financial assets	$ 871	$ 771
Financial liabilities	5,745	6,038
Carrying amount | Debt
Disclosure Of Fair Value Measurement Of Assets And Liabilities1 [Line Items]
Financial liabilities	5,536	5,738
Carrying amount | Derivatives
Disclosure Of Fair Value Measurement Of Assets And Liabilities1 [Line Items]
Financial liabilities	0	3
Carrying amount | Other liabilities
Disclosure Of Fair Value Measurement Of Assets And Liabilities1 [Line Items]
Financial liabilities	209	297
Carrying amount | Other assets
Disclosure Of Fair Value Measurement Of Assets And Liabilities1 [Line Items]
Financial assets	612	559
Carrying amount | Other investments
Disclosure Of Fair Value Measurement Of Assets And Liabilities1 [Line Items]
Financial assets	258	209
Carrying amount | Derivatives
Disclosure Of Fair Value Measurement Of Assets And Liabilities1 [Line Items]
Financial assets	1	3
Estimated fair value
Disclosure Of Fair Value Measurement Of Assets And Liabilities1 [Line Items]
Financial assets	871	771
Financial liabilities	7,063	6,483
Estimated fair value | Debt
Disclosure Of Fair Value Measurement Of Assets And Liabilities1 [Line Items]
Financial liabilities	6,854	6,183
Estimated fair value | Derivatives
Disclosure Of Fair Value Measurement Of Assets And Liabilities1 [Line Items]
Financial liabilities	0	3
Estimated fair value | Other liabilities
Disclosure Of Fair Value Measurement Of Assets And Liabilities1 [Line Items]
Financial liabilities	209	297
Estimated fair value | Other assets
Disclosure Of Fair Value Measurement Of Assets And Liabilities1 [Line Items]
Financial assets	612	559
Estimated fair value | Other investments
Disclosure Of Fair Value Measurement Of Assets And Liabilities1 [Line Items]
Financial assets	258	209
Estimated fair value | Derivatives
Disclosure Of Fair Value Measurement Of Assets And Liabilities1 [Line Items]
Financial assets	$ 1	$ 3

FAIR VALUE MEASUREMENTS - Ass_3

FAIR VALUE MEASUREMENTS - Assets Measured on Non-Recurring Basis (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of fair value measurement of assets [line items]
Total assets	$ 44,392	$ 22,631
Property, plant and equipment | Non-recurring fair value measurement
Disclosure of fair value measurement of assets [line items]
Total assets	130
Property, plant and equipment | Non-recurring fair value measurement | Quoted prices in active markets for identical assets (Level 1)
Disclosure of fair value measurement of assets [line items]
Total assets	0
Property, plant and equipment | Non-recurring fair value measurement | Significant other observable inputs (Level 2)
Disclosure of fair value measurement of assets [line items]
Total assets	0
Property, plant and equipment | Non-recurring fair value measurement | Significant unobservable inputs (Level 3)
Disclosure of fair value measurement of assets [line items]
Total assets	130
Impairment charges	$ 389

PROVISIONS - Provisions by Type

PROVISIONS - Provisions by Type (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of other provisions [line items]
Provisions	$ 3,114	$ 2,904
Environmental rehabilitation (“PER”)
Disclosure of other provisions [line items]
Provisions	2,922	2,726
Post-retirement benefits
Disclosure of other provisions [line items]
Provisions	43	42
Share-based payments
Disclosure of other provisions [line items]
Provisions	26	26
Other employee benefits
Disclosure of other provisions [line items]
Provisions	19	22
Other
Disclosure of other provisions [line items]
Provisions	$ 104	$ 88

PROVISIONS - Environmental Reha

PROVISIONS - Environmental Rehabilitation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of other provisions [line items]
Provisions, noncurrent	$ 3,114	$ 2,904
Environmental rehabilitation
Disclosure of other provisions [line items]
Environmental rehabilitation, beginning balance	2,837	3,096
PERs acquired (divested) during the year	425	0
Other increase (decrease) during period	(87)	(247)
Cash payments	(21)	(18)
Settlement gains	(1)	(1)
Accretion	57	74
Environmental rehabilitation, ending balance	3,078	2,837
Current provisions	(156)	(111)
Provisions, noncurrent	2,922	2,726
Discontinued operations | Environmental rehabilitation
Disclosure of other provisions [line items]
Other increase (decrease) during period	(75)	(30)
Cash payments	(72)	(48)
Settlement gains	(3)	(2)
Accretion	$ 18	$ 13

PROVISIONS - Narrative (Details

PROVISIONS - Narrative (Details) - Environmental rehabilitation - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2019
Disclosure of other provisions [line items]
Increase in other provisions	$ (511)	$ 241
Discount rate change (as percent)		1.00%
Expected decrease in other provisions with 1% increase in discount rate		$ (357)
Expected increase in other provisions with 1% decrease in discount rate		$ 207

FINANCIAL RISK MANAGEMENT - Nar

FINANCIAL RISK MANAGEMENT - Narrative (Details) bbl in Millions	12 Months Ended
	Dec. 31, 2019USD ($)bbl	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Disclosure of detailed information about financial instruments [line items]
Borrowings	$ 5,536,000,000	$ 5,738,000,000	$ 6,423,000,000
Debt to total capitalization ratio, actual	0.07
Commodity price risk
Disclosure of detailed information about financial instruments [line items]
Volume of fuel consumed in production process (in barrels) | bbl	4
Interest rate risk
Disclosure of detailed information about financial instruments [line items]
Reasonably possible change in risk variable, percent	1.00%
Reasonably possible change in risk variable, impact on equity	$ 18,000,000	0
Interest rate risk | Cash and equivalents
Disclosure of detailed information about financial instruments [line items]
Financial assets	3,300,000,000
Interest rate risk | Borrowings | Variable rate
Disclosure of detailed information about financial instruments [line items]
Financial liabilities	100,000,000
Liquidity risk
Disclosure of detailed information about financial instruments [line items]
Borrowings	5,536,000,000	6,000,000,000
Debt net of cash and equivalents	2,000,000,000	$ 4,000,000,000
Undrawn borrowing facilities	$ 3,000,000,000
Required ratio of debt to total capitalization	0.60

FINANCIAL RISK MANAGEMENT - Max

FINANCIAL RISK MANAGEMENT - Maximum Exposure Credit Risk (Details) - Credit risk - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about financial instruments [line items]
Maximum exposure to credit risk	$ 3,677	$ 1,821
Cash and equivalents
Disclosure of detailed information about financial instruments [line items]
Maximum exposure to credit risk	3,314	1,571
Accounts receivable
Disclosure of detailed information about financial instruments [line items]
Maximum exposure to credit risk	363	248
Derivatives
Disclosure of detailed information about financial instruments [line items]
Maximum exposure to credit risk	$ 0	$ 2

FINANCIAL RISK MANAGEMENT - Exp

FINANCIAL RISK MANAGEMENT - Expected Maturity of Financial Assets and Liablities (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about financial instruments [line items]
Cash and equivalents	$ 3,314	$ 1,571	$ 2,234
Accounts receivable	363	248
Liquidity risk
Disclosure of detailed information about financial instruments [line items]
Cash and equivalents	3,314	1,571
Accounts receivable	363	248
Derivative assets	0	3
Trade and other payables	1,155	1,101
Debt	5,564	5,767
Derivative liabilities	0	3
Other liabilities	209	297
Liquidity risk | Less than 1 year
Disclosure of detailed information about financial instruments [line items]
Cash and equivalents	3,314	1,571
Accounts receivable	363	248
Derivative assets	0	2
Trade and other payables	1,155	1,101
Debt	39	43
Derivative liabilities	0	3
Other liabilities	55	59
Liquidity risk | 1 to 3 years
Disclosure of detailed information about financial instruments [line items]
Cash and equivalents	0	0
Accounts receivable	0	0
Derivative assets	0	1
Trade and other payables	0	0
Debt	371	275
Derivative liabilities	0	0
Other liabilities	52	80
Liquidity risk | 3 to 5 years
Disclosure of detailed information about financial instruments [line items]
Cash and equivalents	0	0
Accounts receivable	0	0
Derivative assets	0	0
Trade and other payables	0	0
Debt	13	339
Derivative liabilities	0	0
Other liabilities	9	21
Liquidity risk | Over 5 years
Disclosure of detailed information about financial instruments [line items]
Cash and equivalents	0	0
Accounts receivable	0	0
Derivative assets	0	0
Trade and other payables	0	0
Debt	5,141	5,110
Derivative liabilities	0	0
Other liabilities	$ 93	$ 137

OTHER NON-CURRENT LIABILITIES -

OTHER NON-CURRENT LIABILITIES - Other Non-Current Liabilities by Type (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Detailed Information About Other Noncurrent Liabilities [Line Items]
Long-term income tax payable	$ 241	$ 270
Derivative liabilities	0	0
Provision for offsite remediation	52	57
Other	105	179
Other non-current liabilities	823	1,743
Pueblo Viejo
Disclosure of Detailed Information About Other Noncurrent Liabilities [Line Items]
Deposit on agreement	425	426
Pascua-Lama
Disclosure of Detailed Information About Other Noncurrent Liabilities [Line Items]
Deposit on agreement		$ 811
Cash-generating units [member] | Pascua-Lama
Disclosure of Detailed Information About Other Noncurrent Liabilities [Line Items]
Deposit on agreement	$ 0

OTHER NON-CURRENT LIABILITIES_2

OTHER NON-CURRENT LIABILITIES - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)$ / ounceozt	Dec. 31, 2018USD ($)	Sep. 29, 2015USD ($)
Disclosure of Detailed Information About Other Noncurrent Liabilities [Line Items]
Revenue	$ 9,717	$ 7,243
Gain (Loss) On Remeasurement Of Liability	628	0
Pueblo Viejo
Disclosure of Detailed Information About Other Noncurrent Liabilities [Line Items]
Revenue	$ 1,409	1,333
Proportion of ownership interest in subsidiary	60.00%
Royal Gold
Disclosure of Detailed Information About Other Noncurrent Liabilities [Line Items]
Expected initial revenue payments (as percent)	30.00%
Expected revenue payment from contracts with customers, as percent of prevailing spot prices on volume of mineral resources in deliveries thereafter (as percent)	60.00%
Royal Gold | Pueblo Viejo
Disclosure of Detailed Information About Other Noncurrent Liabilities [Line Items]
Revenue	$ 43
Deposits from customers			$ 610
Pascua-Lama | Pueblo Viejo
Disclosure of Detailed Information About Other Noncurrent Liabilities [Line Items]
Revenue		76
Silver | Royal Gold
Disclosure of Detailed Information About Other Noncurrent Liabilities [Line Items]
Threshold delivery volume (in ounces) | ozt	23,100,000
Silver | Royal Gold | Pueblo Viejo
Disclosure of Detailed Information About Other Noncurrent Liabilities [Line Items]
Percent of interest in mineral resource production sold until initial delivery maximum achieved (as percent)	75.00%
Initial delivery maximum (in ounces) | ozt	50,000,000
Percent of interest in mineral resource production to be delivered thereafter (as percent)	37.50%
Fixed recovery rate (as percent)	70.00%
Silver | Pascua-Lama | Silver Wheaton Corp.
Disclosure of Detailed Information About Other Noncurrent Liabilities [Line Items]
Goods deliverable under contract (as percent)	25.00%
Deposits from customers	$ 625
Contract duration	3 years
Selling price (in dollars per ounce) | $ / ounce	3.90
Annual inflation adjustment (as percent)	1.00%
Starting period after project period to apply annual inflation adjustment	3 years
Gold[member]
Disclosure of Detailed Information About Other Noncurrent Liabilities [Line Items]
Revenue	$ 9,186	$ 6,600
Gold[member] | Royal Gold
Disclosure of Detailed Information About Other Noncurrent Liabilities [Line Items]
Threshold delivery volume (in ounces) | ozt	550,000
Gold[member] | Royal Gold | Pueblo Viejo
Disclosure of Detailed Information About Other Noncurrent Liabilities [Line Items]
Percent of interest in mineral resource production sold until initial delivery maximum achieved (as percent)	7.50%
Initial delivery maximum (in ounces) | ozt	990,000
Percent of interest in mineral resource production to be delivered thereafter (as percent)	3.75%
Lagunas Norte, Pierina and Veladero | Silver
Disclosure of Detailed Information About Other Noncurrent Liabilities [Line Items]
Contract liabilities	$ 253
Lagunas Norte, Pierina and Veladero | Silver | Silver Wheaton Corp.
Disclosure of Detailed Information About Other Noncurrent Liabilities [Line Items]
Goods deliverable under contract (as percent)	100.00%
Pascua-Lama | Silver | Silver Wheaton Corp.
Disclosure of Detailed Information About Other Noncurrent Liabilities [Line Items]
Contract liabilities	$ 253
Gain (Loss) On Remeasurement Of Liability	$ 628

DEFERRED INCOME TAXES - Narrati

DEFERRED INCOME TAXES - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Undistributed profits of foreign subsidiaries	$ 16,470
Deferred tax assets	235	$ 259
Deferred tax assets expected to be realized in more than one year	218
Deferred tax liabilities	3,091	1,236
Unused tax losses, net	6,037
Deductible temporary differences for which no deferred tax asset is recognised	2,875	3,043
Canada
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	1,097	1,087
2020
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses, net	128
2022
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses, net	440
After 2023
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses, net	3,623
No expiry date
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses, net	1,846
Subsidiaries
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Tax on undistributed earnings	33
Subsidiaries | Foreign countries [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets	53	83
Non-capital tax losses
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	1,058	1,134
Capital tax losses | No expiry date
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	331	447
Alternative minimum tax (“AMT”) credits
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets	28	37
Other
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets	11	12
Deductible temporary differences for which no deferred tax asset is recognised	$ 1,486	$ 1,462

DEFERRED INCOME TAXES - Sources

DEFERRED INCOME TAXES - Sources of Deferred Income Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets	$ 235	$ 259
Deferred tax liabilities	(3,091)	(1,236)
Deferred tax liability (asset)	2,856	977
Before offset amount
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets	978	938
Deferred tax liabilities	(2,856)	(977)
Property, plant and equipment
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax liabilities	(3,263)	(1,412)
Environmental rehabilitation
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets	329	292
Tax loss carry forwards
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets	511	537
Post-retirement benefit obligations and other employee benefits
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets	24	27
Accrued interest payable
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets	0	1
Deferred tax liabilities	(26)	0
Inventory
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax liabilities	(545)	(503)
Other working capital
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets	75	32
Other
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets	$ 11	$ 12

DEFERRED INCOME TAXES - Expiry

DEFERRED INCOME TAXES - Expiry Dates of Tax Losses and AMT (Details) - Non-capital tax losses $ in Millions	Dec. 31, 2019USD ($)
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	$ 7,636
Canada
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	2,371
Zambia
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	50
Canada
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	1,692
Argentina
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	992
Tanzania
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	1,566
Zambia
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	271
Other
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	694
2019
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	12
2019 | Canada
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2019 | Zambia
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2019 | Canada
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2019 | Argentina
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2019 | Tanzania
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2019 | Zambia
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	12
2019 | Other
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2020
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	309
2020 | Canada
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2020 | Zambia
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	50
2020 | Canada
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2020 | Argentina
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2020 | Tanzania
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2020 | Zambia
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	259
2020 | Other
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2021
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2021 | Canada
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2021 | Zambia
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2021 | Canada
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2021 | Argentina
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2021 | Tanzania
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2021 | Zambia
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2021 | Other
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2022
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	440
2022 | Canada
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2022 | Zambia
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2022 | Canada
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	440
2022 | Argentina
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2022 | Tanzania
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2022 | Zambia
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
2022 | Other
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
After 2023
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	3,623
After 2023 | Canada
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	2,371
After 2023 | Zambia
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
After 2023 | Canada
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	1,252
After 2023 | Argentina
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
After 2023 | Tanzania
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
After 2023 | Zambia
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
After 2023 | Other
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
No expiry date
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	3,252
No expiry date | Canada
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
No expiry date | Zambia
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
No expiry date | Canada
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
No expiry date | Argentina
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	992
No expiry date | Tanzania
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	1,566
No expiry date | Zambia
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	0
No expiry date | Other
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Unused tax losses for which no deferred tax asset recognised	$ 694

DEFERRED INCOME TAXES - Deferre

DEFERRED INCOME TAXES - Deferred Tax Assets Not Recognized (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	$ 2,875	$ 3,043
Zambia
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	103	174
Saudi Arabia
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	15	154
Canada
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	17	40
Argentina
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	1,074	1,028
COTE D'IVOIRE
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	5	0
Dominican Republic
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	0	0
MALI
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	8	0
Canada
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	329	310
Saudi Arabia
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	70	70
Tanzania
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	156	156
United States
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	1	0
Zambia
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	0	24
Canada
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	$ 1,097	$ 1,087

DEFERRED INCOME TAXES - Source

DEFERRED INCOME TAXES - Source of Changes in Deferred Tax Balances and Income Tax Related Contingent Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Source of Changes in Deferred Tax Balances
Increase (decrease) in deferred tax liability (asset)	$ (1,879)	$ (801)
Income from continuing operations before income taxes	(1,073)	(730)
Increase (Decrease) Through Acquisition of Ownership Interest	(799)	0
Other comprehensive income	(3)	(9)
Net additions based on uncertain tax positions related to prior years	21	0
Income Tax Related Contingent Liabilities
Source of Changes in Deferred Tax Balances
Estimated financial effect of contingent liabilities	306	306
Estimated financial effect of contingent liabilities	327	306
Veladero
Source of Changes in Deferred Tax Balances
Disposition	12	0
Property, plant and equipment
Source of Changes in Deferred Tax Balances
Increase (decrease) in deferred tax liability (asset)	(1,851)	(15)
Environmental rehabilitation
Source of Changes in Deferred Tax Balances
Increase (decrease) in deferred tax liability (asset)	37	(302)
Tax loss carry forwards
Source of Changes in Deferred Tax Balances
Increase (decrease) in deferred tax liability (asset)	(27)	(389)
AMT Credits [Member]
Source of Changes in Deferred Tax Balances
Increase (decrease) in deferred tax liability (asset)	(10)	0
Inventory
Source of Changes in Deferred Tax Balances
Increase (decrease) in deferred tax liability (asset)	(42)	5
Derivatives
Source of Changes in Deferred Tax Balances
Increase (decrease) in deferred tax liability (asset)	0	(74)
Other
Source of Changes in Deferred Tax Balances
Increase (decrease) in deferred tax liability (asset)	14	(26)
Income taxes payable [Member]
Source of Changes in Deferred Tax Balances
Increase (decrease) in deferred tax liability (asset)	(16)	(38)
Equity [member]
Source of Changes in Deferred Tax Balances
Increase (decrease) in deferred tax liability (asset)	$ 0	$ (24)

CAPITAL STOCK (Details)

CAPITAL STOCK (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Sep. 17, 2019	Jan. 02, 2019
Disclosure of classes of share capital [line items]
Dividends recognised as distributions to owners of parent	$ 218	$ 199
Dividends paid, classified as financing activities	548	125
Dividends reinvested	$ 0
Common shares
Disclosure of classes of share capital [line items]
Par value per share (in dollars per share)	$ 0
Capital stock
Disclosure of classes of share capital [line items]
Dividends reinvested	$ 20	$ 14
Randgold | Common shares
Disclosure of classes of share capital [line items]
Number of shares issued (shares)				583,669,178
Acacia Mining PLC [Member]
Disclosure of classes of share capital [line items]
Number of shares issued (shares)			24,836,670
Acacia Mining PLC [Member] | Common shares
Disclosure of classes of share capital [line items]
Number of shares issued (shares)				24,836,670

NON-CONTROLLING INTERESTS - Act

NON-CONTROLLING INTERESTS - Activity (Details) - USD ($) $ in Millions	Jan. 01, 2020	Sep. 17, 2019	Dec. 31, 2019	Dec. 31, 2018
Disclosure of subsidiaries [line items]
Proportion of ownership interests held by non-controlling interests	16.00%
Non-controlling interests, beginning balance	$ 8,395		$ 1,792
Share of income (loss)			605	$ 110
Cash contributed			140	24
Disbursements			(429)	(123)
Non-controlling interests, ending balance			8,395	1,792
Subsidiaries
Disclosure of subsidiaries [line items]
Non-controlling interests, beginning balance	8,395		1,792	1,781
Share of income (loss)			605	110
Acquisitions			6,782
Cash contributed			140	24
Cash contributed			(495)
Disbursements			(429)	(123)
Non-controlling interests, ending balance			$ 8,395	1,792
Nevada Gold Mines
Disclosure of subsidiaries [line items]
Proportion of ownership interests held by non-controlling interests			39.00%
Non-controlling interests, beginning balance	6,039		$ 0	0
Share of income (loss)			275	0
Acquisitions			5,910
Cash contributed			90	0
Cash contributed			0
Disbursements			(236)	0
Non-controlling interests, ending balance			$ 6,039	0
Pueblo Viejo
Disclosure of subsidiaries [line items]
Proportion of ownership interests held by non-controlling interests			40.00%
Non-controlling interests, beginning balance	1,424		$ 1,271	1,290
Share of income (loss)			311	89
Acquisitions			0
Cash contributed			0	0
Cash contributed			0
Disbursements			(158)	(108)
Non-controlling interests, ending balance			$ 1,424	1,271
Acacia Mining PLC
Disclosure of subsidiaries [line items]
Proportion of ownership interests held by non-controlling interests		36.10%	0.00%
Non-controlling interests, beginning balance	0		$ 502	480
Share of income (loss)			(7)	22
Acquisitions			0
Cash contributed			0	0
Cash contributed			(495)
Disbursements			0	0
Non-controlling interests, ending balance			$ 0	502
Loulo Gounkoto
Disclosure of subsidiaries [line items]
Proportion of ownership interests held by non-controlling interests			20.00%
Non-controlling interests, beginning balance	901		$ 0	0
Share of income (loss)			30	0
Acquisitions			887
Cash contributed			0	0
Cash contributed			0
Disbursements			(16)	0
Non-controlling interests, ending balance			$ 901	0
Tongon
Disclosure of subsidiaries [line items]
Proportion of ownership interests held by non-controlling interests			10.30%
Non-controlling interests, beginning balance	47		$ 0	0
Share of income (loss)			(3)	0
Acquisitions			61
Cash contributed			0	0
Cash contributed			0
Disbursements			(11)	0
Non-controlling interests, ending balance			47	0
Other
Disclosure of subsidiaries [line items]
Non-controlling interests, beginning balance	$ (16)		19	11
Share of income (loss)			(1)	(1)
Acquisitions			(76)
Cash contributed			50	24
Cash contributed
Disbursements			(8)	(15)
Non-controlling interests, ending balance			$ (16)	$ 19

NON-CONTROLLING INTERESTS - Sum

NON-CONTROLLING INTERESTS - Summarized Balance Sheets (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of subsidiaries [line items]
Current assets	$ 6,887	$ 3,978
Total assets	44,392	22,631
Current liabilities	2,376	1,668
Total liabilities	14,565	13,246
Nevada Gold Mines
Disclosure of subsidiaries [line items]
Current assets	10,977	0
Non-current assets	15,909	0
Total assets	26,886	0
Current liabilities	466	0
Non-current liabilities	1,217	0
Total liabilities	1,683	0
Pueblo Viejo
Disclosure of subsidiaries [line items]
Current assets	500	520
Non-current assets	4,303	3,469
Total assets	4,803	3,989
Current liabilities	428	720
Non-current liabilities	932	402
Total liabilities	1,360	1,122
Loulo Gounkoto
Disclosure of subsidiaries [line items]
Current assets	406	0
Non-current assets	4,662	0
Total assets	5,068	0
Current liabilities	234	0
Non-current liabilities	634	0
Total liabilities	868	0
Tongon
Disclosure of subsidiaries [line items]
Current assets	158	0
Non-current assets	424	0
Total assets	582	0
Current liabilities	59	0
Non-current liabilities	106	0
Total liabilities	$ 165	$ 0

NON-CONTROLLING INTERESTS - S_2

NON-CONTROLLING INTERESTS - Summarized Statements of Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of subsidiaries [line items]
Revenue	$ 9,717	$ 7,243
Net income (loss)	4,574	(1,435)
Other comprehensive income (loss)	36	11
Total comprehensive income (loss)	4,610	(1,424)
Net cash provided by (used in) operating activities	2,833	1,765
Net cash used in investing activities	50	(1,494)
Net cash used in financing activities	(1,139)	(925)
Net increase (decrease) in cash and equivalents	1,743	(663)
Nevada Gold Mines
Disclosure of subsidiaries [line items]
Revenue	2,707	0
Net income (loss)	739	0
Other comprehensive income (loss)	0	0
Total comprehensive income (loss)	739	0
Dividends paid to NCI	236	0
Net cash provided by (used in) operating activities	1,296	0
Net cash used in investing activities	(539)	0
Net cash used in financing activities	(379)	0
Net increase (decrease) in cash and equivalents	378	0
Pueblo Viejo
Disclosure of subsidiaries [line items]
Revenue	1,409	1,333
Net income (loss)	708	206
Other comprehensive income (loss)	0	0
Total comprehensive income (loss)	708	206
Dividends paid to NCI	158	0
Net cash provided by (used in) operating activities	504	272
Net cash used in investing activities	(107)	(144)
Net cash used in financing activities	(397)	(108)
Net increase (decrease) in cash and equivalents	0	20
Loulo Gounkoto
Disclosure of subsidiaries [line items]
Revenue	1,007	0
Net income (loss)	158	0
Other comprehensive income (loss)	0	0
Total comprehensive income (loss)	158	0
Dividends paid to NCI	16	0
Net cash provided by (used in) operating activities	259	0
Net cash used in investing activities	(130)	0
Net cash used in financing activities	(80)	0
Net increase (decrease) in cash and equivalents	49	0
Tongon
Disclosure of subsidiaries [line items]
Revenue	384	0
Net income (loss)	(29)	0
Other comprehensive income (loss)	0	0
Total comprehensive income (loss)	(29)	0
Dividends paid to NCI	11	0
Net cash provided by (used in) operating activities	129	0
Net cash used in investing activities	61	0
Net cash used in financing activities	(107)	0
Net increase (decrease) in cash and equivalents	$ 83	$ 0

RELATED PARTY TRANSACTIONS (Det

RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Key Management Personnel [Abstract]
Salaries and short-term employee benefits	$ 22	$ 19
Post-employment benefits	1	3
Key management personnel compensation, termination benefits	0	1
Share-based payments and other	28	11
Key management personnel compensation	$ 51	$ 34

STOCK-BASED COMPENSATION - Narr

STOCK-BASED COMPENSATION - Narrative (Details) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)shares	Dec. 31, 2018USD ($)shares	Dec. 31, 2017USD ($)shares
Disclosure of terms and conditions of share-based payment arrangement [line items]
Increase (decrease) through share-based payment transactions, equity	$ 9
Intrinsic value of options exercised	1	$ 0
Unrecognized compensation cost	0	0
Global Employee Share Plan (GESP)
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expense (recovery) from share-based payment transactions with employees	0	12
RSUs
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expense (recovery) from share-based payment transactions with employees	$ 9	$ 29
Vesting period	3 years
Weighted average remaining contractual life	269 days	339 days
Number of units outstanding (shares) | shares	3,110	3,751	4,537
Fair value of shares outstanding	$ 41.5	$ 36	$ 37.7
RSUs | Minimum
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting period	2 years 6 months
RSUs | Maximum
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting period	3 years
DSUs
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maximum election amount of required annual retainer	100.00%
Number of units outstanding (shares) | shares	476	764	725
Fair value of shares outstanding	$ 8.8	$ 11.2	$ 11.6
PGSUs
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of units outstanding (shares) | shares	3,867	3,024
Fair value of shares outstanding	$ 33	$ 18
ESPP
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expense (recovery) from share-based payment transactions with employees	0	0.1
Barrick Share Purchase Plan (BSPP) [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expense (recovery) from share-based payment transactions with employees	3	2
Long term incentive plan [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expense (recovery) from share-based payment transactions with employees	9
Stock options
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expense (recovery) from share-based payment transactions with employees	$ 0	$ 0
Vesting period	4 years
Exercise period	7 years
Number of shares available for grant (shares) | shares	300	800

STOCK-BASED COMPENSATION - DSU

STOCK-BASED COMPENSATION - DSU and RSU Activity (Details) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)shares	Dec. 31, 2018USD ($)shares
DSUs
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of units outstanding beginning of period (shares) | shares	764	725
Settled for cash (shares) | shares	(404)	(143)
Forfeited (shares) | shares	0	0
Granted (shares) | shares	116	182
Credits for dividends (shares) | shares	0	0
Number of units outstanding end of period (shares) | shares	476	764
Fair value, beginning of period | $	$ 11.2	$ 11.6
Settled for cash | $	(6.5)	(1.9)
Forfeited | $	0	0
Granted | $	1.9	2.3
Credits for dividends | $	$ 0	$ 0
Increase (decrease) in number of shares outstanding | shares	0	0
Change in value | $	$ 2.2	$ (0.8)
Fair value, end of period | $	$ 8.8	$ 11.2
RSUs
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of units outstanding beginning of period (shares) | shares	3,751	4,537
Settled for cash (shares) | shares	(2,131)	(3,089)
Forfeited (shares) | shares	(1,157)	(731)
Granted (shares) | shares	2,600	2,974
Credits for dividends (shares) | shares	47	60
Number of units outstanding end of period (shares) | shares	3,110	3,751
Fair value, beginning of period | $	$ 36	$ 37.7
Settled for cash | $	(30.7)	(34.6)
Forfeited | $	(15.8)	(7.9)
Granted | $	35.3	35.3
Credits for dividends | $	$ 0.8	$ 0.8
Increase (decrease) in number of shares outstanding | shares	0	0
Change in value | $	$ 15.9	$ 4.7
Fair value, end of period | $	$ 41.5	$ 36

STOCK-BASED COMPENSATION - Empl

STOCK-BASED COMPENSATION - Employee Stock Options (Details) shares in Millions	12 Months Ended
	Dec. 31, 2019USD ($)shares	Dec. 31, 2019CAD ($)shares	Dec. 31, 2018USD ($)shares	Dec. 31, 2018CAD ($)shares
Canada
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of options at January 1 (shares) | shares	0.3	0.3	0.3	0.3
Number of options at December 31 (shares) | shares	0.2	0.2	0.3	0.3
Average price of stock options outstanding at January 1 (in dollars per share) | $		$ 13		$ 13
Number of share options exercised in share-based payment arrangement | shares	(0.1)	(0.1)	0	0
Weighted average exercise price of share options exercised in share-based payment arrangement | $		$ 16		$ 10
Average price of stock options outstanding at December 31 (in dollars per share) | $		$ 10		$ 13
United States
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of options at January 1 (shares) | shares	0.5	0.5	0.7	0.7
Number of options forfeited (shares) | shares	0	0	(0.1)	(0.1)
Number of options cancelled/expired (shares) | shares	(0.4)	(0.4)	(0.1)	(0.1)
Number of options at December 31 (shares) | shares	0.1	0.1	0.5	0.5
Average price of stock options outstanding at January 1 (in dollars per share) | $	$ 37		$ 40
Average price of options forfeited (in dollars per share) | $	0		34
Average price of options cancelled/expired (in dollars per share) | $	39		49
Average price of stock options outstanding at December 31 (in dollars per share) | $	$ 32		$ 37

STOCK-BASED COMPENSATION - Stoc

STOCK-BASED COMPENSATION - Stock Options (Details) $ / shares in Units, $ / shares in Units, shares in Millions	Dec. 31, 2019USD ($)sharesyear$ / shares	Dec. 31, 2019CAD ($)sharesyear$ / shares	Dec. 31, 2018USD ($)shares	Dec. 31, 2018CAD ($)shares	Dec. 31, 2017USD ($)shares	Dec. 31, 2017CAD ($)shares
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Closing market share price (in dollars per share) | (per share)	$ 18.59	$ 24.12
Canada
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Stock options outstanding (shares) | shares	0.2	0.2	0.3	0.3	0.3	0.3
Stock options outstanding, average price (in dollars per share)		$ 10		$ 13		$ 13
United States
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Stock options outstanding (shares) | shares	0.1	0.1	0.5	0.5	0.7	0.7
Stock options outstanding, average price (in dollars per share)	$ 32		$ 37		$ 40
$9 - $17 | Minimum
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price of outstanding options (in dollars per share)		$ 9
$9 - $17 | Maximum
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price of outstanding options (in dollars per share)		$ 17
$9 - $17 | Canada
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Stock options outstanding (shares) | shares	0.2	0.2
Stock options outstanding, average price (in dollars per share)		$ 10
Stock options outstanding, average life | year	2.6	2.6
Stock options outstanding, intrinsic value		$ 0
Stock options exercisable (in shares) | shares	0.2	0.2
Stock options exercisable, average price (in dollars per option)		$ 10
Stock options exercisable, intrinsic value		$ 0
$32 - $41 | Minimum
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price of outstanding options (in dollars per share)	$ 32
$32 - $41 | Maximum
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price of outstanding options (in dollars per share)	$ 41
$32 - $41 | United States
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Stock options outstanding (shares) | shares	0.1	0.1
Stock options outstanding, average price (in dollars per share)	$ 32
Stock options outstanding, average life | year	0.1	0.1
Stock options outstanding, intrinsic value	$ 0
Stock options exercisable (in shares) | shares	0.1	0.1
Stock options exercisable, average price (in dollars per option)	$ 32
Stock options exercisable, intrinsic value	$ 0

POST-RETIREMENT BENEFITS - Post

POST-RETIREMENT BENEFITS - Post-employment Amounts (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of net defined benefit liability (asset) [line items]
Liability in the balance sheet	$ 43	$ 42
Income statement charge	1	1
Measurements	(3)	(4)
Other post-retirement benefits
Disclosure of net defined benefit liability (asset) [line items]
Liability in the balance sheet	4	6
Income statement charge	0	0
Measurements	$ 2	$ 0
Discount rate	3.35%	4.45%
Defined pension benefits
Disclosure of net defined benefit liability (asset) [line items]
Liability in the balance sheet	$ 39	$ 36
Income statement charge	1	1
Measurements	$ (5)	$ (4)
Defined pension benefits | Minimum
Disclosure of net defined benefit liability (asset) [line items]
Discount rate	2.50%	3.75%
Defined pension benefits | Maximum
Disclosure of net defined benefit liability (asset) [line items]
Discount rate	3.30%	4.65%
Defined pension benefits | Present value of obligations
Disclosure of net defined benefit liability (asset) [line items]
Liability in the balance sheet	$ 39	$ 36
Defined pension benefits | Impact of minimum funding requirement/asset ceiling
Disclosure of net defined benefit liability (asset) [line items]
Liability in the balance sheet	0	0
Defined pension benefits | Funded plans
Disclosure of net defined benefit liability (asset) [line items]
Liability in the balance sheet	(7)	(8)
Defined pension benefits | Funded plans | Present value of obligations
Disclosure of net defined benefit liability (asset) [line items]
Liability in the balance sheet	69	57
Defined pension benefits | Funded plans | Fair value of plan assets
Disclosure of net defined benefit liability (asset) [line items]
Liability in the balance sheet	(76)	(65)
Defined pension benefits | Unfunded plans | Present value of obligations
Disclosure of net defined benefit liability (asset) [line items]
Liability in the balance sheet	$ 46	$ 44

POST-RETIREMENT BENEFITS - Othe

POST-RETIREMENT BENEFITS - Other Post-Retirement Benefits (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)year	Dec. 31, 2018USD ($)year
Disclosure of net defined benefit liability (asset) [line items]
Weighted average duration of defined benefit obligation | year	9	14
Estimate of contributions, Less than a year	$ 27	$ 8
Estimate of contributions, between 1-2 years	7	8
Estimate of contributions, between 2-5 years	21	24
Estimate of contributions, over 5 years	98	144
Total	153	184
Defined pension benefits
Disclosure of net defined benefit liability (asset) [line items]
Estimate of contributions, Less than a year	27	7
Estimate of contributions, between 1-2 years	7	7
Estimate of contributions, between 2-5 years	20	22
Estimate of contributions, over 5 years	95	139
Total	149	175
Other post-retirement benefits
Disclosure of net defined benefit liability (asset) [line items]
Estimate of contributions, Less than a year	0	1
Estimate of contributions, between 1-2 years	0	1
Estimate of contributions, between 2-5 years	1	2
Estimate of contributions, over 5 years	3	5
Total	$ 4	$ 9

POST-RETIREMENT BENEFITS - Defi

POST-RETIREMENT BENEFITS - Defined Contribution Pension Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Employee Benefits [Abstract]
Post-employment benefit expense, defined contribution plans	$ 41	$ 35

CONTINGENCIES (Details)

CONTINGENCIES (Details)

Jan. 24, 2020USD ($)Payment

Jan. 01, 2020Rate

Oct. 14, 2019USD ($)

Sep. 17, 2019Rate

Aug. 28, 2019USD ($)

Jul. 15, 2019USD ($)

Aug. 06, 2018defendant

Nov. 27, 2017defendant

Oct. 19, 2017

Oct. 10, 2017charge

Aug. 15, 2017defendant

Dec. 02, 2016charge

Jun. 08, 2016claim

Mar. 11, 2016defendant

Oct. 20, 2014plaintiff

Sep. 05, 2014USD ($)

May 26, 2014USD ($)

May 23, 2014USD ($)

Apr. 24, 2014USD ($)

Apr. 17, 2014USD ($)claim

Jul. 31, 2017USD ($)

Mar. 31, 2017USD ($)

Jan. 31, 2016USD ($)

Nov. 30, 2011government

Mar. 31, 2011

Nov. 30, 2008individual

Dec. 31, 2019USD ($)Rate

Dec. 31, 2017USD ($)

Jun. 30, 2017committee

Jun. 30, 2019USD ($)

Dec. 31, 2017USD ($)

Jun. 30, 2017

Sep. 30, 2014claim

Sep. 30, 2019Rate

Sep. 16, 2019

Dec. 31, 2019USD ($)

Dec. 31, 2018USD ($)

Aug. 23, 2019defendant

Jul. 31, 2019USD ($)

Jul. 18, 2019USD ($)

Jan. 01, 2019USD ($)

Jan. 17, 2018USD ($)

Dec. 27, 2017USD ($)

Sep. 14, 2017investigation

Mar. 03, 2017container

Apr. 06, 2016USD ($)

May 30, 2013USD ($)

Disclosure of contingent liabilities [line items]

Impairment (reversals) charges (note 10)

$ (1,423,000,000)

$ 900,000,000

Proportion of ownership interests held by non-controlling interests

16.00%

Number Of Installment Payments | Payment

5

Randgold

Disclosure of contingent liabilities [line items]

Tax advances paid to the government

$ 43,000,000

Acacia Mining PLC

Disclosure of contingent liabilities [line items]

Proportion of ownership interest in subsidiary

84.00%

100.00%

100.00%

63.90%

63.90%

Proportion of ownership interests held by non-controlling interests

36.10%

0.00%

Payment to resolve tax claim

300,000,000

Government of Tanzania | Twiga Minerals Corporation

Disclosure of contingent liabilities [line items]

Proportion of ownership interests held by non-controlling interests

16.00%

Economic Benefit Shared With Government

5000.00%

Payment to resolve tax claim

$ 100,000,000

Installment Payment To Resolve Outstanding Tax Claims

$ 40,000,000

Legal proceedings contingent liability | Canadian Securities Class Actions

Disclosure of contingent liabilities [line items]

Number of additional plaintiffs | plaintiff

2

Estimated financial effect of contingent liabilities

$ 0

$ 0

Legal proceedings contingent liability | Canadian Securities Class Actions | Canada

Disclosure of contingent liabilities [line items]

Number of claims filed | claim

8

Legal proceedings contingent liability | Canadian Securities Class Actions | ONTARIO

Disclosure of contingent liabilities [line items]

Number of claims filed | claim

4

Damages sought

$ 3,000,000,000

$ 3,000,000,000

Number of additional plaintiffs | plaintiff

1

Legal proceedings contingent liability | Canadian Securities Class Actions | Ontario and Alberta

Disclosure of contingent liabilities [line items]

Number of claims filed | claim

2

General damages sought

$ 4,300,000,000

Special damages sought

$ 350,000,000

Legal proceedings contingent liability | Canadian Securities Class Actions | ALBERTA

Disclosure of contingent liabilities [line items]

Number of claims filed | claim

2

Damages sought

$ 6,000,000,000

Legal proceedings contingent liability | Canadian Securities Class Actions | SASKATCHEWAN

Disclosure of contingent liabilities [line items]

Number of claims filed | claim

1

Damages sought

$ 6,000,000,000

Legal proceedings contingent liability | Canadian Securities Class Actions | QUEBEC

Disclosure of contingent liabilities [line items]

Number of claims filed | claim

1

Legal proceedings contingent liability | Pascua Lama SMA Regulatory Sanctions | Compañía Minera Nevada

Disclosure of contingent liabilities [line items]

Number of claims filed | claim

2

Estimated financial effect of contingent liabilities

$ 16,000,000

Legal proceedings contingent liability | San Juan Provincial Regulatory Sanction | Minera Andina del Sol SRL

Disclosure of contingent liabilities [line items]

Administrative fine paid

$ 10,000,000

Legal proceedings contingent liability | Criminal Matters | Minera Andina del Sol SRL

Disclosure of contingent liabilities [line items]

Estimated financial effect of contingent liabilities

0

0

Number of defendants | defendant

9

Contingent Liabilities, Number Of Defendants Granted Probation | defendant

8

Number of investigations consolidated | investigation

2

Number of defendants with confirmed indictment | defendant

6

4

8

Legal proceedings contingent liability | Operations and Regulatory Infringement | Minera Andina del Sol SRL

Disclosure of contingent liabilities [line items]

Number of charges in claim | charge

2

Legal proceeding provision

$ 5,600,000

Legal proceedings contingent liability | Veladero Cyanide Leaching Process, Civil Action | Minera Andina del Sol SRL

Disclosure of contingent liabilities [line items]

Estimated financial effect of contingent liabilities

0

0

Legal proceedings contingent liability | Veladero release of gold-bearing process solution | Minera Andina del Sol SRL

Disclosure of contingent liabilities [line items]

Number of charges in claim | charge

2

Legal proceeding provision

$ 5,600,000

Legal proceedings contingent liability | Provincial Amparo Action | Minera Andina del Sol SRL

Disclosure of contingent liabilities [line items]

Estimated financial effect of contingent liabilities

0

0

Legal proceedings contingent liability | Federal Amparo Action | Minera Andina del Sol SRL

Disclosure of contingent liabilities [line items]

Estimated financial effect of contingent liabilities

0

0

Legal proceedings contingent liability | Perilla Complaint

Disclosure of contingent liabilities [line items]

Estimated financial effect of contingent liabilities

0

0

Number of named individuals in claim | individual

2

Number of unnamed residents in claim | individual

200,000

Legal proceedings contingent liability | Writ of Kalikasan

Disclosure of contingent liabilities [line items]

Estimated financial effect of contingent liabilities

0

0

Number of service days to return Writ

10 days

Number of local governments seeking intervenor status | government

2

Legal proceedings contingent liability | Veladero Tax Assessment and Criminal Charges [Member] | Minera Andina del Sol SRL

Disclosure of contingent liabilities [line items]

Tax claims related to foreign operations

$ 14,100,000

Tax claims related to Argentinian's operations in local currency

ARS 543 million

Tax contingent liability [member]

Disclosure of contingent liabilities [line items]

Estimated financial effect of contingent liabilities

327,000,000

$ 306,000,000

$ 306,000,000

327,000,000

$ 306,000,000

Tax contingent liability [member] | Tanzanian Revenue Authority Assessment | Acacia Mining PLC

Disclosure of contingent liabilities [line items]

Tax assessment

$ 190,000,000,000

$ 190,000,000,000

3,000,000,000

Number of containers approved for export prior to ban | container

27

Number of government presidential committees conducting investigations | committee

2

Royalty tax rate

4.00%

6.00%

Clearing fee on minerals exported

1.00%

Proportion of ownership interests held by non-controlling interests

16.00%

Economic Benefit Shared With Government

5000.00%

5000.00%

Tax contingent liability [member] | Tanzanian Revenue Authority Assessment Related to Withholding Tax | Acacia Mining PLC

Disclosure of contingent liabilities [line items]

Tax assessment

$ 41,300,000

Tax contingent liability [member] | Tanzanian Revenue Authority Assessment Related To Resident Allegation | Acacia Mining PLC

Disclosure of contingent liabilities [line items]

Tax assessment

$ 500,700,000

Tax contingent liability [member] | Chilean Internal Revenue Service | Zaldívar

Disclosure of contingent liabilities [line items]

Tax assessment

$ 1,000,000,000

$ 1,000,000,000

Commencement of legal proceeding | Commencement of major litigation | Pascua Lama SMA Regulatory Sanctions | Compañía Minera Nevada

Disclosure of contingent liabilities [line items]

Estimated financial effect of contingent liabilities

$ 11,500,000

Impairment (reversals) of long lived assets

Disclosure of contingent liabilities [line items]

Impairment (reversals) charges (note 10)

(1,423,000,000)

746,000,000

Pascua-Lama | Individual assets | Impairment (reversals) of long lived assets

Disclosure of contingent liabilities [line items]

Impairment (reversals) charges (note 10)

$ (429,000,000)

MALI | Randgold

Disclosure of contingent liabilities [line items]

Tax claims related to foreign operations

92,000,000

$ 275,000,000

$ 92,000,000

$ 267,700,000

Taxes recoverable

$ 60,000,000

41,100,000

Fair value of taxes recoverable

$ 0

Increase in tax advances accrued

$ 17,000,000

Zaldívar

Disclosure of contingent liabilities [line items]

Proportion of ownership interest in joint venture

50.00%

Percent of ownership by other parties in joint ventures

50.00%

Impairment (reversals) charges (note 10)

$ 0

Zaldívar | Tax contingent liability [member]

Disclosure of contingent liabilities [line items]

Estimated financial effect of contingent liabilities

$ 0

$ 0

Tethyan Copper Company Pty Limited

Disclosure of contingent liabilities [line items]

Proportion of ownership interest in joint venture

50.00%

Percent of ownership by other parties in joint ventures

50.00%

Funds awarded for damages

$ 5,840,000,000

Compensation for denial of mining lease

4,087,000,000

Estimated financial effect of contingent assets

0

Interest compounded on claims

$ 1,753,000,000

Adjustment to interest rate

1.00%

Uncategorized Items - abx-20191

Label	Element	Value
Increase (decrease) due to application of IFRS 15 [member]
Profit (loss)	ifrs-full_ProfitLoss	$ 64,000,000
Retained earnings [member] | Increase (decrease) due to application of IFRS 15 [member]
Profit (loss)	ifrs-full_ProfitLoss	64,000,000
Equity attributable to owners of parent [member] | Increase (decrease) due to application of IFRS 15 [member]
Profit (loss)	ifrs-full_ProfitLoss	$ 64,000,000
Ordinary shares [member]
Entity Common Stock, Shares Outstanding	dei_EntityCommonStockSharesOutstanding	1,777,926,611