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INCOME TAXES (Tables) | 12 Months Ended
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Dec. 31, 2020
Income Taxes [Abstract] |
Disclosure of major components of tax expense |
|  | Years ended December 31
(In millions of dollars) |  | 2020 | 2019
Total current tax expense |  | 712 |  | 269 |
Deferred tax (recovery) expense: |  |  |
(Reversal) origination of temporary differences |  | (129) |  | 466 |
Revaluation of deferred tax balances due to legislative changes |  | (3) |  | (23) |
Total deferred tax (recovery) expense |  | (132) |  | 443 |
Total income tax expense |  | 580 |  | 712 |
Disclosure of difference between income tax expense computed by applying the statutory income tax rate to income before income tax expense and the income tax expense | Below is a summary of the difference between income tax expense computed by applying the statutory income tax rate to income before income tax expense and the actual income tax expense for the year.
|  | Years ended December 31
(In millions of dollars, except tax rates) |  | 2020 | 2019
Statutory income tax rate |  | 26.6 | % | 26.7 | %
Income before income tax expense |  | 2,172 |  | 2,755 |
Computed income tax expense |  | 578 |  | 736 |
Increase (decrease) in income tax expense resulting from: |  |  |
Non-deductible portion of equity losses |  | 10 |  | 7 |
Income tax adjustment, legislative tax change |  | (3) |  | (23) |
Non-taxable portion of capital gains |  | — |  | (2) |
Other |  | (5) |  | (6) |
Total income tax expense |  | 580 |  | 712 |
Effective income tax rate |  | 26.7 | % | 25.8 | %
Disclosure of temporary difference, unused tax losses and unused tax credits | Below is a summary of the movement of net deferred tax assets and liabilities during 2020 and 2019.
Deferred tax assets (liabilities) (In millions of dollars) | Property, plant and equipment and inventory | Goodwill and other intangibles |  | Investments | Non-capital loss carryforwards | Contract and deferred commission cost assets | Other | Total
December 31, 2019 | (1,366) |  | (1,318) |  |  | (168) |  | 12 |  | (570) |  | (27) |  | (3,437) |
(Expense) recovery in net income | (108) |  | (129) |  |  | (2) |  | 4 |  | 387 |  | (20) |  | 132 |
Recovery in other comprehensive income | — |  | — |  |  | 40 |  | — |  | — |  | 82 |  | 122 |
Acquisitions | (10) |  | (3) |  |  | — |  | — |  | — |  | — |  | (13) |
December 31, 2020 | (1,484) |  | (1,450) |  |  | (130) |  | 16 |  | (183) |  | 35 |  | (3,196) |
Deferred tax assets (liabilities) (In millions of dollars) | Property, plant and equipment and inventory | Goodwill and other intangibles |  | Investments | Non-capital loss carryforwards | Contract and deferred commission cost assets | Other | Total
December 31, 2018 | (1,145) |  | (1,192) |  |  | (66) |  | 29 |  | (515) |  | (21) |  | (2,910) |
Effect of IFRS 16 adoption | — |  | — |  |  | — |  | — |  | — |  | 9 |  | 9 |
(Expense) recovery in net income | (221) |  | (126) |  |  | 2 |  | (17) |  | (55) |  | (26) |  | (443) |
(Expense) recovery in other comprehensive income | — |  | — |  |  | (104) |  | — |  | — |  | 11 |  | (93) |
December 31, 2019 | (1,366) |  | (1,318) |  |  | (168) |  | 12 |  | (570) |  | (27) |  | (3,437) |
Disclosure of unrecognized deferred tax assets | We have not recognized deferred tax assets for the following items:
| As at December 31
(In millions of dollars) | 2020 | 2019
Realized and accrued capital losses in Canada that can be applied against future capital gains | 82 |  | 41 |
Tax losses in foreign jurisdictions that expire between 2023 and 2039 | 67 |  | 67 |
Deductible temporary differences in foreign jurisdictions | 43 |  | 41 |
Total unrecognized temporary differences | 192 |  | 149 |

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