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DEFERRED INCOME TAXES (Tables) | 12 Months Ended
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Dec. 31, 2020
Income Tax [Abstract] |
Deferred income tax assets and liabilities | Sources of Deferred Income Tax Assets and Liabilities
| As at December 31, 2020 | As at December 31, 2019
Deferred tax assets |  |
Tax loss carry forwards | $456 |  | $511 |
Tax credits | 13 |  | 28 |
Environmental rehabilitation | 358 |  | 329 |
Post-retirement benefit obligations and other employee benefits | 30 |  | 24 |
Other working capital | 70 |  | 75 |
Other | 3 |  | 11 |
| $930 |  | $978 |
Deferred tax liabilities |  |
Property, plant and equipment | (3,375) |  | (3,263) |
Inventory | (463) |  | (545) |
Accrued interest payable | (28) |  | (26) |
| ($2,936) |  | ($2,856) |
Classification: |  |
Non-current assets | $98 |  | $235 |
Non-current liabilities | (3,034) |  | (3,091) |
| ($2,936) |  | ($2,856) |
| 2021 | 2022 | 2023 | 2024 | 2025+ | No expiry date | Total |
Non-capital tax losses 1 |  |  |  |  |  |  |  |
Barbados | $13 |  | $— |  | $263 |  | $77 |  | $655 |  | $— |  | $1,008 |  |
Canada | — |  | — |  | — |  | — |  | 2,176 |  | — |  | 2,176 |  |
Chile | — |  | — |  | — |  | — |  | — |  | 1,050 |  | 1,050 |  |
Tanzania | — |  | — |  | — |  | — |  | — |  | 1,455 |  | 1,455 |  |
Zambia | — |  | 150 |  | — |  | — |  | 14 |  | — |  | 164 |  |
Other | — |  | 4 |  | 12 |  | — |  | 21 |  | 380 |  | 417 |  |
| $13 |  | $154 |  | $275 |  | $77 |  | $2,866 |  | $2,885 |  | $6,270 |  |
1 Represents the gross amount of tax loss carry forwards translated at closing exchange rates at December 31, 2020. Deferred Tax Assets Not Recognized
| As at December 31, 2020 | As at December 31, 2019
Argentina | $105 |  | $103 |
Australia | 298 |  | 277 |
Barbados | 10 |  | 17 |
Canada | 1,127 |  | 1,097 |
Chile | 1,037 |  | 1,074 |
Côte d'Ivoire | 6 |  | 5 |
Mali | 9 |  | 8 |
Peru | 281 |  | 329 |
Saudi Arabia | 70 |  | 70 |
Tanzania | 110 |  | 156 |
United States | — |  | 1 |
Zambia | — |  | 24 |
| $3,053 |  | $3,161 |
Source of Changes in Deferred Tax Balances
For the years ended December 31 | 2020 | 2019
Temporary differences |  |
Property, plant and equipment | ($112) |  | ($1,851) |
Environmental rehabilitation | 29 |  | 37 |
Tax loss carry forwards | (54) |  | (27) |
AMT and other tax credits | (14) |  | (10) |
Inventory | 81 |  | (42) |
Other | (10) |  | 14 |
| ($80) |  | ($1,879) |
Intraperiod allocation to: |  |
Income from continuing operations before income taxes | ($151) |  | ($1,073) |
Allocation to PPA | — |  | (799) |
Sale of 50% interest in Kalgoorlie | — |  | 12 |
Income Tax Payable | 65 |  | (16) |
Other comprehensive income | (6) |  | (3) |
Other | 12 |  | — |
| ($80) |  | ($1,879) |
Income Tax Related Contingent Liabilities
| 2020 | 2019
At January 1 | $327 |  | $306 |
Net additions based on uncertain tax positions related to prior years | 39 |  | 21 |
Reductions for tax positions of prior years | (100) |  | — |
At December 31 1 | $266 |  | $327 |
1 If reversed, the total amount of $266 million would be recognized as a benefit to income taxes on the income statement, and therefore would impact the reported effective tax rate.
Tax years still under examination |
Tax Years Still Under Examination
Argentina | 2010-2011, 2014-2020
Australia | 2016-2020
Canada | 2015-2020
Chile | 2015-2020
Côte d'Ivoire | 2019-2020
Democratic Republic of Congo | 2019-2020
Dominican Republic | 2015-2020
Mali | 2017-2020
Papua New Guinea | 2006-2020
Peru | 2013-2020
Saudi Arabia | 2019-2020
Tanzania | 2018-2020
United States | 2019-2020
Zambia | 2018-2020

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