XML 228 R147.htm IDEA: XBRL DOCUMENT
v3.20.4

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, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Source of Changes in Deferred Tax Balances |  |  |
Increase (decrease) in deferred tax liability (asset) | $ (80) | $ (1,879) |
Income from continuing operations before income taxes | (151) | (1,073) |
Increase (Decrease) Through Acquisition of Ownership Interest | 0 | (799) |
Increase (decrease) in income tax payable | 65 | (16) |
Tax impact of amounts recognized within accumulated OCI | (6) | (3) |
Increase (decrease) in other tax payable | 12 | 0 |
Net additions based on uncertain tax positions related to prior years | 39 | 21 |
Reductions for tax positions of prior years | (100) | 0 |
Income Tax Related Contingent Liabilities |  |  |
Source of Changes in Deferred Tax Balances |  |  |
Estimated financial effect of contingent liabilities | 266 | 327 | $ 306
KalgoorlieMember [Member] |  |  |
Source of Changes in Deferred Tax Balances |  |  |
Disposition | 0 | 12 |
Property, plant and equipment |  |  |
Source of Changes in Deferred Tax Balances |  |  |
Increase (decrease) in deferred tax liability (asset) | (112) | (1,851) |
Environmental rehabilitation |  |  |
Source of Changes in Deferred Tax Balances |  |  |
Increase (decrease) in deferred tax liability (asset) | 29 | 37 |
Tax loss carry forwards |  |  |
Source of Changes in Deferred Tax Balances |  |  |
Increase (decrease) in deferred tax liability (asset) | (54) | (27) |
AMT Credits [Member] |  |  |
Source of Changes in Deferred Tax Balances |  |  |
Increase (decrease) in deferred tax liability (asset) | (14) | (10) |
Inventory |  |  |
Source of Changes in Deferred Tax Balances |  |  |
Increase (decrease) in deferred tax liability (asset) | 81 | (42) |
Other |  |  |
Source of Changes in Deferred Tax Balances |  |  |
Increase (decrease) in deferred tax liability (asset) | $ (10) | $ 14 |

X
- Definition Estimated financial effect of tax contingent liabilities, increase related to uncertain tax positions in prior year + References No definition available. + Details
Name: | abx_EstimatedFinancialEffectOfTaxContingentLiabilitiesIncreaseRelatedToUncertainTaxPositionsInPriorYear
Namespace Prefix: | abx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Increase (decrease) in income tax payable + References No definition available. + Details
Name: | abx_IncreaseDecreaseInIncomeTaxPayable
Namespace Prefix: | abx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Increase (decrease) in other tax payable + References No definition available. + Details
Name: | abx_IncreaseDecreaseInOtherTaxPayable
Namespace Prefix: | abx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Increase (Decrease) Through Acquisition of Ownership Interest + References No definition available. + Details
Name: | abx_IncreaseDecreaseThroughAcquisitionofOwnershipInterest
Namespace Prefix: | abx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Increase (decrease) through disposal of ownership interest + References No definition available. + Details
Name: | abx_IncreaseDecreaseThroughDisposalOwnershipInterest
Namespace Prefix: | abx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Reductions for tax positions of prior years + References No definition available. + Details
Name: | abx_ReductionsForTaxPositionsOfPriorYears
Namespace Prefix: | abx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_ChangesInDeferredTaxLiabilityAssetAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of tax expense or income relating to changes in deferred tax liabilities and deferred tax assets, recognised in profit or loss. [Refer: Deferred tax assets; Deferred tax expense (income); Deferred tax liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2019-01-01 -Paragraph 81 -Subparagraph g -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2019-en-r&anchor=para_81_g_ii&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of the estimated financial effect of contingent liabilities. [Refer: Contingent liabilities [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2019-01-01 -Paragraph 86 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2019-en-r&anchor=para_86_a&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_EstimatedFinancialEffectOfContingentLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of income tax relating to amounts recognised in other comprehensive income. [Refer: Other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2019-01-01 -Paragraph 81 -Subparagraph ab -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2019-en-r&anchor=para_81_ab&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 90 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_90&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The increase (decrease) in a deferred tax liability (asset). [Refer: Deferred tax liability (asset)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 12 -IssueDate 2019-01-01 -Paragraph 81 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2019-en-r&anchor=para_81&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_IncreaseDecreaseInDeferredTaxLiabilityAsset
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfContingentLiabilitiesAxis=ifrs-full_TaxContingentLiabilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | abx_DiscontinuedOperationsAxis=abx_KalgoorlieMemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis=abx_PropertyPlantandEquipmentRelatedTemporaryDifferencesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis=abx_DecommissioningRestorationAndRehabilitationCostsRelatedTemporaryDifferencesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis=ifrs-full_UnusedTaxLossesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis=abx_AMTCreditsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis=abx_InventoryRelatedTemporaryDifferencesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis=ifrs-full_OtherTemporaryDifferencesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |