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SEGMENT INFORMATION - Consolidated Statements of Income Information (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Disclosure of operating segments [line items]        
Revenue $ 1,712 $ 2,160 $ 3,502 $ 4,153
Depreciation 328 409 653 823
Exploration, evaluation and project expenses 97 81 170 156
Other expenses (income) 38 (839) 39 (837)
Net (loss) income (76) 1,137 116 2,026
Share of income (loss) 18 53 52 263
Cost of sales (excluding depreciation) 1,176 1,277 2,328 2,619
Adjustments for gains (losses) on change in fair value of derivatives (6) (11) (29) (19)
Pierina        
Disclosure of operating segments [line items]        
Cost of sales (excluding depreciation) 30 47 62 81
Pueblo Viejo        
Disclosure of operating segments [line items]        
Revenue, attributable to non-controlling interests 119 153 257 274
Cost of sales, attributable to non-controlling interests 70 64 136 125
Share of income (loss) 48 86 118 146
Acacia        
Disclosure of operating segments [line items]        
Revenue, attributable to non-controlling interests 63 57 120 141
Cost of sales, attributable to non-controlling interests 42 34 82 89
Share of income (loss) 11 0 37 47
Operating segments        
Disclosure of operating segments [line items]        
Revenue 1,712 2,160 3,502 4,153
Direct mining, royalties and community relations 846 859 1,671 1,780
Depreciation 323 404 642 805
Exploration, evaluation and project expenses 44 35 76 65
Other expenses (income) 44 45 48 62
Net (loss) income 455 817 1,065 1,441
Accretion 20 17 37 31
Operating segments | Barrick Nevada [Member]        
Disclosure of operating segments [line items]        
Revenue 585 921 1,199 1,567
Direct mining, royalties and community relations 238 277 481 557
Depreciation 139 252 287 459
Exploration, evaluation and project expenses 8 6 10 10
Other expenses (income) 7 8 8 15
Net (loss) income 193 378 413 526
Operating segments | Turquoise Ridge        
Disclosure of operating segments [line items]        
Revenue 75 26 159 93
Direct mining, royalties and community relations 40 16 78 46
Depreciation 7 2 14 9
Exploration, evaluation and project expenses 0 0 0 0
Other expenses (income) 0 1 0 1
Net (loss) income 28 7 67 37
Operating segments | Pueblo Viejo        
Disclosure of operating segments [line items]        
Revenue 297 379 653 686
Direct mining, royalties and community relations 134 120 260 240
Depreciation 43 44 84 84
Exploration, evaluation and project expenses 4 0 8 0
Other expenses (income) 1 7 1 7
Net (loss) income 115 208 300 355
Operating segments | Veladero        
Disclosure of operating segments [line items]        
Revenue 111 115 212 325
Direct mining, royalties and community relations 47 56 92 158
Depreciation 34 0 65 38
Exploration, evaluation and project expenses 2 3 2 3
Other expenses (income) 1 1 1 1
Net (loss) income 27 55 52 125
Operating segments | Lagunas Norte        
Disclosure of operating segments [line items]        
Revenue 89 126 185 241
Direct mining, royalties and community relations 31 42 58 79
Depreciation 11 17 22 33
Exploration, evaluation and project expenses 2 2 2 3
Other expenses (income) 2 4 4 6
Net (loss) income 43 61 99 120
Operating segments | Acacia        
Disclosure of operating segments [line items]        
Revenue 176 159 333 391
Direct mining, royalties and community relations 95 73 181 189
Depreciation 23 24 47 59
Exploration, evaluation and project expenses 0 0 0 0
Other expenses (income) 25 8 1 14
Net (loss) income 33 54 104 129
Operating segments | Pascua-Lama        
Disclosure of operating segments [line items]        
Revenue 0 0 0 0
Direct mining, royalties and community relations 0 0 0 0
Depreciation 3 2 5 4
Exploration, evaluation and project expenses 25 22 48 44
Other expenses (income) 6 6 11 1
Net (loss) income (34) (30) (64) (49)
Operating segments | Other        
Disclosure of operating segments [line items]        
Revenue 379 434 761 850
Direct mining, royalties and community relations 261 275 521 511
Depreciation 63 63 118 119
Exploration, evaluation and project expenses 3 2 6 5
Other expenses (income) 2 10 22 17
Net (loss) income 50 84 94 198
Material reconciling items [member]        
Disclosure of operating segments [line items]        
Exploration, evaluation and project expenses 53 46 94 91
Other expenses (income) 14 (867) 28 (868)
Cost of sales (excluding depreciation) 7 14 15 34
Unrealized Gains (Losses) on Change in Fair Value of Derivatives 0 0 0 3
Hedging gains (losses) for hedge of group of items with offsetting risk positions $ (1) $ (8) $ (2) $ (14)