XML 76 R16.htm IDEA: XBRL DOCUMENT
v3.19.1

EXPLORATION, EVALUATION AND PROJECT EXPENSES | 12 Months Ended
--- | ---
Dec. 31, 2018
Exploration For and Evaluation of Mineral Resources [Abstract] |
EXPLORATION, EVALUATION AND PROJECT EXPENSES | EXPLORATION, EVALUATION AND PROJECT EXPENSES
For the years ended December 31 | 2018 |  | 2017 |
Minesite exploration and evaluation 1 |  | $45 |  |  | $47 |
Global exploration and evaluation 1 | 121 |  | 126 |
Advanced project costs: |  |
Pascua-Lama | 77 |  | 122 |
Other | 36 |  | 14 |
Corporate development 2 | 60 |  | 13 |
Business improvement and innovation | 44 |  | 32 |
Total exploration, evaluation and project expenses |  | $383 |  |  | $354 |
1 | Approximates the impact on operating cash flow.
2 | 2018 includes $37 million in transaction costs related to the merger with Randgold.

X
- Definition Exploration For and Evaluation of Mineral Resources [Abstract] + References No definition available. + Details
Name: | abx_ExplorationForandEvaluationofMineralResourcesAbstract
Namespace Prefix: | abx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for exploration and evaluation assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 6 -IssueDate 2018-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=6&date=2018-03-01&anchor=sect_Disclosure&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_DisclosureOfExplorationAndEvaluationAssetsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration