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EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Earnings per share [abstract] |  |  |  |
Net income (loss) | $ 223 | $ (76) | $ 363 | $ 116
Net income attributable to non-controlling interests | (29) | (18) | (58) | (52)
Net income attributable to equity holders of Barrick Gold Corporation - Basic | 194 | (94) | 305 | 64
Net income attributable to equity holders of Barrick Gold Corporation - Diluted | $ 194 | $ (94) | $ 305 | $ 64
Weighted average shares outstanding - Basic (in shares) | 1,752 | 1,167 | 1,749 | 1,167
Weighted average shares outstanding - Diluted (in shares) | 1,752 | 1,167 | 1,749 | 1,167
Basic earnings per share data attributable to the equity holders of Barrick Gold Corporation (in USD per share) | $ 0.11 | $ (0.08) | $ 0.17 | $ 0.05
Diluted earnings per share data attributable to the equity holders of Barrick Gold Corporation (in USD per share) | $ 0.11 | $ (0.08) | $ 0.17 | $ 0.05

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