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CAPITAL STOCK (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Sep. 17, 2019 | Jan. 02, 2019
Disclosure of classes of share capital [line items] |  |  |  |
Dividends recognised as distributions to owners of parent | $ 218 | $ 199 |  |
Dividends paid, classified as financing activities | 548 | 125 |  |
Dividends reinvested | $ 0 |  |  |
Common shares |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |
Par value per share (in dollars per share) | $ 0 |  |  |
Capital stock |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |
Dividends reinvested | $ 20 | $ 14 |  |
Randgold | Common shares |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |
Number of shares issued (shares) |  |  |  | 583,669,178
Acacia Mining PLC [Member] |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |
Number of shares issued (shares) |  |  | 24,836,670 |
Acacia Mining PLC [Member] | Common shares |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |
Number of shares issued (shares) |  |  |  | 24,836,670

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