XML 175 R135.htm IDEA: XBRL DOCUMENT v3.10.0.1

FINANCIAL INSTRUMENTS - Fair Values of Derivative Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about financial instruments [line items]
Asset Derivatives	$ 3	$ 3
Liability Derivatives	3	32
Total derivatives not designated as hedging instruments
Disclosure of detailed information about financial instruments [line items]
Asset Derivatives	0	2
Liability Derivatives	1	7
Commodity contracts | Other asset
Disclosure of detailed information about financial instruments [line items]
Asset Derivatives	0	2
Commodity contracts | Other liabilities
Disclosure of detailed information about financial instruments [line items]
Liability Derivatives	1	7
Total derivatives classified as hedging instruments
Disclosure of detailed information about financial instruments [line items]
Asset Derivatives	3	1
Liability Derivatives	2	25
Interest rate contracts | Other asset
Disclosure of detailed information about financial instruments [line items]
Asset Derivatives	1	1
Interest rate contracts | Other liabilities
Disclosure of detailed information about financial instruments [line items]
Liability Derivatives	0	0
Commodity contracts | Other asset
Disclosure of detailed information about financial instruments [line items]
Asset Derivatives	2	0
Commodity contracts | Other liabilities
Disclosure of detailed information about financial instruments [line items]
Liability Derivatives	$ 2	$ 25

X

- Definition

The amount of financial assets classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard
-URIDate 2018-03-16

+ Details

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

X

- Definition

The amount of financial liabilities classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard
-URIDate 2018-03-16

+ Details

Name:	ifrs-full_DerivativeFinancialLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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_DisclosureOfFinancialInstrumentsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	abx_NonhedgingInstrumentsAxis=abx_NonhedgingContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	abx_NonhedgingInstrumentsAxis=abx_CommodityContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	abx_BSLocation3Axis=abx_OtherassetMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	abx_BSLocation3Axis=abx_OtherLiabilities1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_HedgingInstrumentsAxis=abx_HedgingContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_HedgingInstrumentsAxis=ifrs-full_InterestRateSwapContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_HedgingInstrumentsAxis=abx_CommodityContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: