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IMPAIRMENT REVERSALS (Tables) | 12 Months Ended
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Dec. 31, 2019
Impairment Of Assets [Abstract] |
Impairment (reversals) charges |
For the years ended December 31 | 2019 |  | 2018 |
Impairment charges (reversals) of long-lived assets 1 |  | ($1,423 | ) |  | $722 |
Impairment of intangibles 1 | — |  | 24 |
Impairment of goodwill 1 | — |  | 154 |
Total |  | ($1,423 | ) |  | $900 |
1 | Refer to note 21 for further details.
The carrying value of the CGUs that are most sensitive to changes in the key assumptions used in the FVLCD calculation are:
As at December 31, 2019 | Carrying Value
Loulo-Gounkoto |  | $4,198 |
Lumwana | 1,307 |
Veladero | 692 |
Bulyanhulu | 579 |
Pascua-Lama 1 | 153 |
1 The carrying value of Pascua-Lama is presented net of the Wheaton streaming liability of $253 million (refer to note 29). For the year ended December 31, 2019, we recorded net impairment reversals of $1,423 million (2018: impairment losses of $746 million) for non-current assets and impairment charges of $nil (2018: $154 million) for goodwill, as summarized in the following table:
For the years ended December 31 | 2019 |  | 2018 |
Lumwana |  | ($947 | ) |  | $— |
Pueblo Viejo | (865 | ) | — |
Pascua-Lama | 296 |  | (7 | )
Cortez | 57 |  | 9 |
Lagunas Norte | 12 |  | 405 |
Golden Sunlight | 9 |  | — |
Veladero | 3 |  | 246 |
Carlin | 2 |  | 5 |
Equity method investments | — |  | 30 |
Acacia exploration sites | — |  | 24 |
Other | 10 |  | 34 |
Total impairment (reversals) losses of long-lived assets |  | ($1,423 | ) |  | $746 |
Veladero goodwill | — |  | 154 |
Total goodwill impairment losses |  | $— |  |  | $154 |
Total impairment (reversals) losses |  | ($1,423 | ) |  | $900 |
The other key assumptions used in our impairment testing, based on the CGUs tested in each year, are summarized in the table below:
| 2019 |  | 2018 |
Copper price per lb (long-term) |  | $3.00 |  |  | $2.85 |
WACC - gold (range) | 3%-7% |  | 4%-11% |
WACC - gold (avg) | 4 | % | 7 | %
WACC - copper | n/a |  | 10 | %
NAV multiple - gold (avg) | 1.2 |  | 1.05 |
LOM years - gold (avg) | 19 |  | 15 |
Value per ounce of gold | $20 - $30 |  | n/a |
Value per ounce of silver | $0.28 - $0.42 |  | n/a |

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- Definition The disclosure of impairment loss and the reversal of impairment loss. [Refer: Impairment loss; Reversal of impairment loss] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2018-01-01 -Paragraph 126 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2018-03-01&anchor=para_126&doctype=Standard -URIDate 2018-03-16 + Details
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