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EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Earnings per share [abstract] |  |
Net income | $ 1,516 | $ 861
Net income attributable to non-controlling interests | (78) | (206)
Net income attributable to equity holders of Barrick Gold Corporation - Diluted | 1,438 | 655
Net income attributable to equity holders of Barrick Gold Corporation - Basic | $ 1,438 | $ 655
Weighted average shares outstanding - Basic (in shares) | 1,166 | 1,165
Weighted average shares outstanding - Diluted (in shares) | 1,166 | 1,165
Basic earnings per share data attributable to the equity holders of Barrick Gold Corporation (in USD per share) | $ 1.23 | $ 0.56
Diluted earnings per share data attributable to the equity holders of Barrick Gold Corporation (in USD per share) | $ 1.23 | $ 0.56

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- Definition The weighted average number of ordinary shares outstanding plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2017-01-01 -Paragraph 70 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=33&date=2017-03-01&anchor=para_70_b&doctype=Standard -URIDate 2017-03-09 + Details
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