XML 182 R114.htm IDEA: XBRL DOCUMENT v3.8.0.1

PROPERTY, PLANT AND EQUIPMENT - Property, Plant and Equipment by Type (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	$ 14,103	$ 14,434
Additions	2,343	1,276
Disposals	(1,197)	(117)
Depreciation	(1,697)	(1,789)
Impairment charges		299
Impairment reversals	254
Transfers	0	0
Property, plant and equipment	13,806	14,103
Cost
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	49,523	48,484
Property, plant and equipment	49,784	49,523
Accumulated depreciation and impairments
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	(35,420)	(34,050)
Property, plant and equipment	(35,978)	(35,420)
Buildings, plant and equipment
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	4,556	4,684
Additions	158	71
Disposals	(72)	(80)
Depreciation	(878)	(794)
Impairment charges		217
Impairment reversals	(102)
Transfers	551	458
Property, plant and equipment	4,213	4,556
Buildings, plant and equipment | Cost
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	14,111	13,782
Property, plant and equipment	14,209	14,111
Buildings, plant and equipment | Accumulated depreciation and impairments
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	(9,555)	(9,098)
Property, plant and equipment	(9,996)	(9,555)
MIning property costs subject to depreciation
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	7,194	7,300
Additions	219	272
Disposals	(32)	0
Depreciation	(819)	(995)
Impairment charges		79
Impairment reversals	(359)
Transfers	449	538
Property, plant and equipment	6,652	7,194
MIning property costs subject to depreciation | Cost
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	20,778	19,968
Property, plant and equipment	21,068	20,778
MIning property costs subject to depreciation | Accumulated depreciation and impairments
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	(13,584)	(12,668)
Property, plant and equipment	(14,416)	(13,584)
MIning property costs not subject to depreciation
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	2,353	2,450
Additions	1,966	933
Disposals	(1,093)	(37)
Depreciation	0	0
Impairment charges		3
Impairment reversals	715
Transfers	(1,000)	(996)
Property, plant and equipment	2,941	2,353
MIning property costs not subject to depreciation | Cost
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	14,634	14,734
Property, plant and equipment	14,507	14,634
MIning property costs not subject to depreciation | Accumulated depreciation and impairments
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	(12,281)	(12,284)
Property, plant and equipment	$ (11,566)	$ (12,281)

X

- Definition

The amount of additions to property, plant and equipment other than those acquired through business combinations. [Refer: Business combinations [member]; Property, plant and equipment]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 16
-IssueDate 2017-01-01
-Paragraph 73
-Subparagraph e
-Clause i
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e_i&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of depreciation of property, plant and equipment. [Refer: Depreciation and amortisation expense; Property, plant and equipment]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 16
-IssueDate 2017-01-01
-Paragraph 73
-Subparagraph e
-Clause vii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e_vii&doctype=Standard
-URIDate 2017-03-09

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 16
-IssueDate 2017-01-01
-Paragraph 75
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_75_a&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_DepreciationPropertyPlantAndEquipment
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The decrease in property, plant and equipment resulting from disposals. [Refer: Property, plant and equipment]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 16
-IssueDate 2017-01-01
-Paragraph 73
-Subparagraph e
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e_ii&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_DisposalsPropertyPlantAndEquipment
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The amount of impairment loss recognised in profit or loss for property, plant and equipment. [Refer: Impairment loss recognised in profit or loss; Property, plant and equipment]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 16
-IssueDate 2017-01-01
-Paragraph 73
-Subparagraph e
-Clause v
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e_v&doctype=Standard
-URIDate 2017-03-09

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 98
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_98_a&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The increase (decrease) in property, plant and equipment resulting from transfers. [Refer: Property, plant and equipment]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 16
-IssueDate 2017-01-01
-Paragraph 73
-Subparagraph e
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 16
-IssueDate 2017-01-01
-Paragraph 73
-Subparagraph e
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e&doctype=Standard
-URIDate 2017-03-09

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 54
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_54_a&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_PropertyPlantAndEquipment
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of reversal of impairment loss recognised in profit or loss for property, plant and equipment. [Refer: Reversal of impairment loss recognised in profit or loss; Property, plant and equipment]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 16
-IssueDate 2017-01-01
-Paragraph 73
-Subparagraph e
-Clause vi
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e_vi&doctype=Standard
-URIDate 2017-03-09

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 98
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_98_a&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis=ifrs-full_GrossCarryingAmountMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis=ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_BuildingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=abx_MIningPropertySubjecttoDepreciationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=abx_MIningPropertyNotSubjecttoDepreciationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: