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Income Taxes | 12 Months Ended
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Dec. 31, 2021
Income Taxes [Abstract] |
Income Taxes | Income Taxes A. Consolidated Statements of Earnings I. Rate Reconciliations
Year ended Dec. 31 | 2021 | 2020 | 2019
Earnings (loss) before income taxes | (380) |  | (303) |  | 193 |
Net earnings (loss) attributable to non-controlling interests not subject to tax | (33) |  | 2 |  | (26) |
Adjusted earnings (loss) before income taxes | (413) |  | (301) |  | 167 |
Statutory Canadian federal and provincial income tax rate (%) | 23.6 | % | 24.5 | % | 26.5 | %
Expected income tax expense (recovery) | (98) |  | (74) |  | 44 |
Increase (decrease) in income taxes resulting from: |  |  |
Differences in effective foreign tax rates | 4 |  | 3 |  | 5 |
Deferred income tax expense related to temporary difference on investment in subsidiaries | — |  | 9 |  | — |
Write-down (reversal of write-down) of unrecognized deferred income tax assets | 134 |  | 8 |  | (9) |
Statutory and other rate differences | 4 |  | (7) |  | (31) |
Other | 1 |  | 11 |  | 8 |
Income tax expense (recovery) | 45 |  | (50) |  | 17 |
Effective tax rate (%) | (11 | %) | 17 | % | 10 | %
II. Components of Income Tax Expense The components of income tax expense are as follows:
Year ended Dec. 31 | 2021 | 2020 | 2019
Current income tax expense | 56 |  | 35 |  | 35 |
Deferred income tax expense (recovery) related to the origination and reversal of temporary differences | (145) |  | (95) |  | 22 |
Deferred income tax expense related to temporary difference on investment in subsidiary | — |  | 9 |  | — |
Deferred income tax recovery resulting from changes in tax rates or laws | — |  | (7) |  | (31) |
Deferred income tax expense (recovery) arising from the unrecognized deferred income tax assets(1) | 134 |  | 8 |  | (9) |
Income tax expense (recovery) | 45 |  | (50) |  | 17 |
Year ended Dec. 31 | 2021 | 2020 | 2019
Current income tax expense | 56 |  | 35 |  | 35 |
Deferred income tax recovery | (11) |  | (85) |  | (18) |
Income tax expense (recovery) | 45 |  | (50) |  | 17 |
(1) During the year ended Dec. 31, 2021, the Company recorded a write-down of deferred tax assets of $134 million (2020 —$8 million write-down, 2019 — $9 million write-down reversal). In the current year additional deferred tax assets were created from the recognition of other comprehensive losses in the US. The deferred income tax assets mainly relate to the tax benefits of losses associated with the Company’s directly owned US operations and Canadian operations. The Company evaluates at each period end, whether it is probable that sufficient future taxable income would be available from the Company’s directly owned US operations to utilize the underlying tax losses. B. Consolidated Statements of Changes in Equity The aggregate current and deferred income tax related to items charged or credited to equity are as follows:
Year ended Dec. 31 | 2021 | 2020 | 2019
Income tax expense (recovery) related to: |  |  |
Net impact related to cash flow hedges | (57) |  | (23) |  | 6 |
Net actuarial gains (losses) | 11 |  | (3) |  | (7) |
Income tax recovery reported in equity | (46) |  | (26) |  | (1) |
C. Consolidated Statements of Financial Position Significant components of the Company’s deferred income tax assets (liabilities) are as follows:
As at Dec. 31 | 2021 | 2020
Net operating loss carryforwards(1) | 530 |  | 469 |
Future decommissioning and restoration costs | 183 |  | 140 |
Property, plant and equipment | (651) |  | (717) |
Risk management assets and liabilities, net | (53) |  | (107) |
Employee future benefits and compensation plans | 53 |  | 62 |
Interest deductible in future periods | 17 |  | 22 |
Foreign exchange differences on US-denominated debt | 16 |  | 31 |
Other deductible temporary differences | (5) |  | 2 |
Net deferred income tax liability, before write-down of deferred income tax assets | 90 |  | (98) |
Unrecognized deferred income tax assets | (380) |  | (247) |
Net deferred income tax liability, after write-down of deferred income tax assets | (290) |  | (345) |
(1) Net operating losses expire between 2031 and 2040. The net deferred income tax liability is presented in the Consolidated Statements of Financial Position as follows:
As at Dec. 31 | 2021 | 2020
Deferred income tax assets(1) | 64 |  | 51 |
Deferred income tax liabilities | (354) |  | (396) |
Net deferred income tax liability | (290) |  | (345) |
(1) The deferred income tax assets presented on the Consolidated Statements of Financial Position are recoverable based on estimated future earnings and tax planning strategies. The assumptions used in the estimate of future earnings are based on the Company’s long-range forecasts. D. Contingencies As of Dec. 31, 2021, the Company had recognized a net liability of nil (2020 — nil) related to uncertain tax positions. Ongoing CRA Audit The Company is subject to routine audits of its tax filing positions by the Canada Revenue Agency ("CRA") on an ongoing basis. The CRA is currently examining the Company's tax filings for the 2015 taxation year and, in connection with such audit, is reviewing the internal reorganization completed in 2015. To date, the CRA has not proposed any reassessment of the Company's tax liability as a consequence of such audit and management believes that any reassessment would be without merit. The Company strongly believes that the Company's tax filing positions are appropriate, and accordingly no amounts have been accrued in the consolidated financial statements in respect of any such potential reassessment. If a notice of reassessment were issued, the Company would expect to vigorously oppose any such reassessment. If the CRA were to issue such a reassessment, the Company would be required to pay, on a provisional basis, up to 50 per cent of the amounts assessed, estimated to be between nil and $57 million. Any payment made by the Company in this context would be held by CRA until the final resolution of the dispute. The Company firmly believes it will be able to successfully defend its original filing position so that, ultimately, no increased income tax payable will result from the CRA's audit and any amounts paid to the CRA by the Company would be refunded.

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- Definition The entire disclosure for income taxes. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2021-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&doctype=Standard&dita_xref=IAS12_g79-88_TI -URIDate 2021-03-24 + Details
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- Definition Income Taxes [Abstract] + References No definition available. + Details
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