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EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Earnings per share [abstract]
Net income	$ 3,614	$ 4,574
Net income attributable to non-controlling interests	(1,290)	(605)
Net income attributable to equity holders of Barrick Gold Corporation - Basic	2,324	3,969
Net income attributable to equity holders of Barrick Gold Corporation - Diluted	$ 2,324	$ 3,969
Weighted average shares outstanding - Basic (in shares)	1,778	1,758
Weighted average shares outstanding - Diluted (in shares)	1,778	1,758
Basic earnings per share data attributable to the equity holders of Barrick Gold Corporation (in USD per share)	$ 1.31	$ 2.26
Diluted earnings per share data attributable to the equity holders of Barrick Gold Corporation (in USD per share)	$ 1.31	$ 2.26

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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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