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EXPLORATION, EVALUATION AND PROJECT EXPENSES (Tables) | 12 Months Ended
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Dec. 31, 2019
Exploration For and Evaluation of Mineral Resources [Abstract] |
Exploration, evaluation and project expenses |
For the years ended December 31 | 2019 |  | 2018 |
Global exploration and evaluation 1 |  | $143 |  |  | $121 |
Advanced project costs: |  |
Pascua-Lama | 49 |  | 77 |
Other | 20 |  | 36 |
Corporate development 2 | 51 |  | 60 |
Business improvement and innovation | 10 |  | 44 |
Minesite exploration and evaluation 1 | 69 |  | 45 |
Total exploration, evaluation and project expenses |  | $342 |  |  | $383 |
1 | Approximates the impact on operating cash flow.
2 | 2019 includes $44 million in transaction costs related to the Nevada Gold Mines, Acacia and Kalgoorlie transactions. 2018 includes $37 million in transaction costs related to the merger with Randgold.

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