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EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	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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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]]

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