Average price of sales subject to final settlement

No definition available.

Name:	abx_AveragePriceOfSalesSubjectToFinalSettlement
Namespace Prefix:	abx_
Data Type:	srt-types:perUnitItemType
Balance Type:	na
Period Type:	instant

- Definition

[Line Items] for Disclosure of disaggregation of revenue [Table]

+ References

No definition available.

+ Details

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

- Definition

Impact on net income before tax of 10% movement in market price

+ References

No definition available.

+ Details

Name:	abx_ImpactOnNetIncomeBeforeTaxOf10MovementInMarketPrice
Namespace Prefix:	abx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Minimum percentage of entity revenue for major customers

+ References

No definition available.

+ Details

Name:	abx_MinimumPercentageOfEntityRevenueForMajorCustomers
Namespace Prefix:	abx_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of customers who accounts for more than ten percent of revenue

+ References

No definition available.

+ Details

Name:	abx_NumberOfCustomersWhoAccountsForMoreThanTenPercentOfRevenue
Namespace Prefix:	abx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of composition of principal product

+ References

No definition available.

+ Details

Name:	abx_PercentageOfCompositionOfPrincipalProduct
Namespace Prefix:	abx_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percent change in commodity prices used for sensitivity analysis

+ References

No definition available.

+ Details

Name:	abx_Percentchangeincommoditypricesusedforsensitivityanalysis
Namespace Prefix:	abx_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Volume subject to final pricing, Copper in millions and Gold in thousands of ounces

+ References

No definition available.

+ Details

Name:	abx_Volumesubjecttofinalpricing
Namespace Prefix:	abx_
Data Type:	dtr-types1:massItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

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

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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

- Definition

The percentage of the entity's revenue. [Refer: Revenue]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 8
-IssueDate 2024-01-01
-Paragraph 34
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_34&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_PercentageOfEntitysRevenue
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	ifrs-full_ProductsAndServicesAxis=us-gaap_GoldMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ProductsAndServicesAxis=abx_CopperMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_MajorCustomersAxis=abx_Customer1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_MajorCustomersAxis=abx_Customer2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

REVENUE - Narrative (Details) t in Thousands, oz in Thousands, lb in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024 customers $ / ounce $ / pound	Dec. 31, 2024 $ / ounce $ / pound	Dec. 31, 2024 lb $ / ounce $ / pound	Dec. 31, 2024 USD ($) $ / ounce $ / pound	Dec. 31, 2024 oz $ / ounce $ / pound	Dec. 31, 2024 t $ / ounce $ / pound	Dec. 31, 2023 lb $ / ounce $ / pound	Dec. 31, 2023 USD ($) $ / ounce $ / pound	Dec. 31, 2023 oz $ / ounce $ / pound	Dec. 31, 2023 t $ / ounce $ / pound
Disclosure of major customers [abstract]
Number of customers who accounts for more than ten percent of revenue \| customers	2
Minimum percentage of entity revenue for major customers		10.00%
Disclosure of major customers [line items]
Number of customers who accounts for more than ten percent of revenue \| customers	2
Minimum percentage of entity revenue for major customers		10.00%
Gold
Disclosure of provisional metal sales
Percentage of composition of principal product (as percent)	90.00%	90.00%	90.00%	90.00%	90.00%	90.00%
Volumes subject to final pricing Copper (millions) Gold (000s) \| oz					48				50
Impact on net income before taxation of 10% movement in market price \| $				$ 13				$ 10
Average price of sales subject to final settlement \| $ / ounce	2,636	2,636	2,636	2,636	2,636	2,636	2,079	2,079	2,079	2,079
Percent change in commodity prices used for sensitivity analysis	10.00%	10.00%	10.00%	10.00%	10.00%	10.00%
Copper
Disclosure of provisional metal sales
Volumes subject to final pricing Copper (millions) Gold (000s)			63			28	61			28
Impact on net income before taxation of 10% movement in market price \| $				$ 25				$ 23
Average price of sales subject to final settlement \| $ / pound	4.04	4.04	4.04	4.04	4.04	4.04	3.81	3.81	3.81	3.81
Customer 1 [Member]
Disclosure of major customers [abstract]
Percentage of entity's revenue		23.00%
Disclosure of major customers [line items]
Percentage of entity's revenue		23.00%
Customer 2 [Member]
Disclosure of major customers [abstract]
Percentage of entity's revenue		22.00%
Disclosure of major customers [line items]
Percentage of entity's revenue		22.00%