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SEGMENT INFORMATION - Consolidated Statements of Income Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Disclosure of operating segments [line items] |  |
Revenue | $ 7,243 | $ 8,374
Depreciation | 1,457 | 1,647
Exploration, evaluation and project expenses | 383 | 354
Other expenses (income) | 90 | (799)
Net (loss) income | (1,435) | 1,516
Accretion | 87 | 67
Share of income (loss) | 110 | 78
Cost of sales (excluding depreciation) | 5,220 | 5,300
Pierina |  |
Disclosure of operating segments [line items] |  |
Cost of sales (excluding depreciation) | 116 | 174
Pueblo Viejo |  |
Disclosure of operating segments [line items] |  |
Revenue, attributable to non-controlling interests | 535 | 567
Cost of sales, attributable to non-controlling interests | 289 | 285
Share of income (loss) | 237 | 276
Acacia Mining PLC |  |
Disclosure of operating segments [line items] |  |
Revenue, attributable to non-controlling interests | 240 | 271
Cost of sales, attributable to non-controlling interests | 164 | 169
Share of income (loss) | 63 | 69
Operating segments |  |
Disclosure of operating segments [line items] |  |
Revenue | 7,243 | 8,374
Direct mining, royalties and community relations | 3,755 | 3,624
Depreciation | 1,434 | 1,619
Exploration, evaluation and project expenses | 150 | 168
Other expenses (income) | 95 | 157
Net (loss) income | 1,809 | 2,806
Accretion | 74 | 55
Operating segments | Barrick Nevada |  |
Disclosure of operating segments [line items] |  |
Revenue | 2,655 | 2,961
Direct mining, royalties and community relations | 1,066 | 1,076
Depreciation | 649 | 793
Exploration, evaluation and project expenses | 36 | 24
Other expenses (income) | 14 | 16
Net (loss) income | 890 | 1,052
Operating segments | Pueblo Viejo |  |
Disclosure of operating segments [line items] |  |
Revenue | 1,333 | 1,417
Direct mining, royalties and community relations | 547 | 501
Depreciation | 185 | 229
Exploration, evaluation and project expenses | 21 | 0
Other expenses (income) | 1 | 16
Net (loss) income | 579 | 671
Operating segments | Lagunas Norte |  |
Disclosure of operating segments [line items] |  |
Revenue | 332 | 514
Direct mining, royalties and community relations | 291 | 177
Depreciation | 46 | 68
Exploration, evaluation and project expenses | 2 | 4
Other expenses (income) | 6 | 6
Net (loss) income | (13) | 259
Operating segments | Veladero |  |
Disclosure of operating segments [line items] |  |
Revenue | 366 | 591
Direct mining, royalties and community relations | 189 | 291
Depreciation | 121 | 119
Exploration, evaluation and project expenses | 2 | 3
Other expenses (income) | 1 | 5
Net (loss) income | 53 | 173
Operating segments | Turquoise Ridge |  |
Disclosure of operating segments [line items] |  |
Revenue | 331 | 280
Direct mining, royalties and community relations | 178 | 131
Depreciation | 28 | 28
Exploration, evaluation and project expenses | 0 | 0
Other expenses (income) | (1) | 2
Net (loss) income | 126 | 119
Operating segments | Acacia Mining PLC |  |
Disclosure of operating segments [line items] |  |
Revenue | 664 | 751
Direct mining, royalties and community relations | 367 | 362
Depreciation | 89 | 107
Exploration, evaluation and project expenses | 0 | 0
Other expenses (income) | 37 | 91
Net (loss) income | 171 | 191
Operating segments | Pascua-Lama |  |
Disclosure of operating segments [line items] |  |
Revenue | 0 | 0
Direct mining, royalties and community relations | 0 | 0
Depreciation | 11 | 8
Exploration, evaluation and project expenses | 77 | 125
Other expenses (income) | 7 | (10)
Net (loss) income | (95) | (123)
Operating segments | Other |  |
Disclosure of operating segments [line items] |  |
Revenue | 1,562 | 1,860
Direct mining, royalties and community relations | 1,117 | 1,086
Depreciation | 305 | 267
Exploration, evaluation and project expenses | 12 | 12
Other expenses (income) | 30 | 31
Net (loss) income | $ 98 | $ 464

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