XML 81 R47.htm IDEA: XBRL DOCUMENT v3.19.2

SEGMENT INFORMATION SEGMENT INFORMATION (Narrative) (Details)	Jun. 30, 2018 minesite_grouping investment minesite
Disclosure of operating segments [line items]
Number of Minesite Locations	17
Number of Publicly Traded Companies | minesite_grouping	1
Number of Investments | investment	2
Operating segments [member]
Disclosure of operating segments [line items]
Number of Minesite Locations	7

X

- Definition

Number of investments

+ References

No definition available.

+ Details

Name:	abx_NumberofInvestments
Namespace Prefix:	abx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number of minesite locations

+ References

No definition available.

+ Details

Name:	abx_NumberofMinesiteLocations
Namespace Prefix:	abx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number of Publicly Traded Companies

+ References

No definition available.

+ Details

Name:	abx_NumberofPubliclyTradedCompanies
Namespace Prefix:	abx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

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

- Details

Name:	ifrs-full_SegmentsAxis=ifrs-full_OperatingSegmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: