XML 178 R110.htm IDEA: XBRL DOCUMENT
v3.8.0.1

INVENTORIES - Inventory Impairment Charges (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Disclosure of operating segments [line items] |  |
Inventory impairment charges | $ 21 | $ 68
Barrick Nevada |  |
Disclosure of operating segments [line items] |  |
Inventory impairment charges | 0 | 57
Golden Sunlight |  |
Disclosure of operating segments [line items] |  |
Inventory impairment charges | 6 | 7
Porgera |  |
Disclosure of operating segments [line items] |  |
Inventory impairment charges | 4 | 3
Pierina |  |
Disclosure of operating segments [line items] |  |
Inventory impairment charges | $ 11 | $ 1

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfOperatingSegmentsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of expense recognised related to the write-down of inventories to net realisable value. [Refer: Inventories] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 2 -IssueDate 2017-01-01 -Paragraph 36 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=2&date=2017-03-01&anchor=para_36_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 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_InventoryWritedown2011
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | abx_NameofPropertyAxis=abx_CortezMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | abx_NameofPropertyAxis=abx_GoldenSunlightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | abx_NameofPropertyAxis=abx_PorgeraMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | abx_NameofPropertyAxis=abx_PierinaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |