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EARNINGS PER SHARE (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Basic earnings per share [abstract]    
Net income $ 3,288 $ 3,614
Net income attributable to non-controlling interests (1,266) (1,290)
Net income attributable to equity holders of Barrick Gold Corporation - Basic $ 2,022 $ 2,324
Weighted average shares outstanding - Basic 1,779 1,778
Basic earnings per share data attributable to the equity holders of Barrick Gold Corporation (in USD per share) $ 1.14 $ 1.31
Diluted earnings per share [abstract]    
Net income $ 3,288 $ 3,614
Non-controlling interests (note 32) 1,266 1,290
Net income attributable to equity holders of Barrick Gold Corporation - Diluted $ 2,022 $ 2,324
Weighted average shares outstanding - Diluted 1,779 1,778
Diluted earnings per share data attributable to the equity holders of Barrick Gold Corporation (in USD per share) $ 1.14 $ 1.31