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Income Taxes (Details) - Alberta Government - USD ($) $ in Millions | 6 Months Ended | 30 Months Ended
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Jun. 30, 2019 | Jan. 01, 2022
Income Tax Examination [Line Items] |  |
Alberta provincial corporate income tax rate | 12.00% |
Deferred tax benefit from change in tax rate | $ 60 |
Forecast |  |
Income Tax Examination [Line Items] |  |
Alberta provincial corporate income tax rate |  | 8.00%

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- Definition This element represents the rate at which the foreign income of an entity is charged tax as per the enacted laws. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 + Details
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