XML 126 R86.htm IDEA: XBRL DOCUMENT v3.10.0.1

ACQUISITIONS AND DIVESTITURES - Gross Cash Proceeds from Divestiture (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Disclosure of Discontinued Operations [Line Items]
Gross cash proceeds on divestiture	$ 0	$ 990
Veladero | Continuing operations
Disclosure of Discontinued Operations [Line Items]
Gross cash proceeds on divestiture	$ 0	$ 990

X

- Definition

[Line Items] for Disclosure of Discontinued Operations [Table]

+ References

No definition available.

+ Details

Name:	abx_DisclosureofDiscontinuedOperationsLineItems
Namespace Prefix:	abx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The portion of consideration paid or received, consisting of cash and cash equivalents, in respect of both obtaining and losing control of subsidiaries or other businesses. [Refer: Subsidiaries [member]; Cash and cash equivalents; Consideration paid (received)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 7
-IssueDate 2018-01-01
-Paragraph 40
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_40_b&doctype=Standard
-URIDate 2018-03-16

+ Details

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

X

- Details

Name:	ifrs-full_JointOperationsAxis=abx_VeladeroMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ContinuingAndDiscontinuedOperationsAxis=ifrs-full_ContinuingOperationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: