XML 132 R62.htm IDEA: XBRL DOCUMENT
v3.20.4

INVENTORIES (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Inventories [Abstract] |
Inventories and inventory impairment charges |
| Gold | Copper
| As at December 31, 2020 | As at December 31, 2019 | As at December 31, 2020 | As at December 31, 2019
Raw materials |  |  |  |
Ore in stockpiles | $2,742 |  | $2,678 |  | $114 |  | $155 |
Ore on leach pads | 591 |  | 623 |  | — |  | — |
Mine operating supplies | 615 |  | 617 |  | 54 |  | 52 |
Work in process | 117 |  | 141 |  | — |  | — |
Finished products | 114 |  | 220 |  | 97 |  | 103 |
| $4,179 |  | $4,279 |  | $265 |  | $310 |
Non-current ore in stockpiles and on leach pads 1 | (2,452) |  | (2,300) |  | (114) |  | — |
| $1,727 |  | $1,979 |  | $151 |  | $310 |
1 Ore that we do not expect to process in the next 12 months is classified within other long-term assets.
Inventory Impairment Charges |  |
For the years ended December 31 | 2020 | 2019
Cortez | $17 |  | $4 |
Phoenix | 10 |  | — |
Carlin | 2 |  | 6 |
Pierina | — |  | 12 |
Golden Sunlight | — |  | 4 |
Inventory impairment charges | $29 |  | $26 |
Ore in Stockpiles | As at December 31, 2020 | As at December 31, 2019
Gold |  |
Carlin | $1,029 |  | $1,020 |
Pueblo Viejo | 646 |  | 649 |
Turquoise Ridge | 365 |  | 258 |
Loulo-Gounkoto | 171 |  | 167 |
North Mara | 133 |  | 136 |
Cortez | 127 |  | 174 |
Lagunas Norte | 73 |  | 73 |
Veladero | 58 |  | 52 |
Phoenix | 47 |  | 39 |
Tongon | 33 |  | 29 |
Porgera | 30 |  | 33 |
Buzwagi | 15 |  | 47 |
Hemlo | 14 |  | 1 |
Other | 1 |  | — |
Copper |  |
Lumwana | 114 |  | 155 |
| $2,856 |  | $2,833 |
Ore on Leach pads | As at December 31, 2020 | As at December 31, 2019
Gold |  |
Carlin | $179 |  | $180 |
Veladero | 133 |  | 123 |
Lagunas Norte | 121 |  | 148 |
Cortez | 58 |  | 50 |
Turquoise Ridge | 39 |  | 33 |
Long Canyon | 33 |  | 43 |
Phoenix | 26 |  | 44 |
Pierina | 2 |  | 2 |
| $591 |  | $623 |

X
- Definition Disclosure of detailed information about inventories [Table Text Block] + References No definition available. + Details
Name: | abx_DisclosureofDetailedInformationAboutInventoriesTableTextBlock
Namespace Prefix: | abx_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Inventories [Abstract] + References No definition available. + Details
Name: | abx_InventoriesAbstract
Namespace Prefix: | abx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration