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EXPLORATION, EVALUATION AND PROJECT EXPENSES
 12 Months Ended
Dec. 31, 2020
Exploration For and Evaluation of Mineral Resources [Abstract]  
EXPLORATION, EVALUATION AND PROJECT EXPENSES Exploration, Evaluation, and Project Expenses
For the years ended December 31 2020 2019
Global exploration and evaluation1
 $143  $143 
Project costs:
    Pascua-Lama 37  49 
    Other 27  20 
Corporate development2
 9  51 
Business improvement and innovation —  10 
Minesite exploration and evaluation1
 79  69 
Total exploration, evaluation and project expenses $295  $342 
1Approximates the impact on operating cash flow.
22019 includes $44 million in transaction costs related to the Nevada Gold Mines, Acacia and Kalgoorlie transactions.