income taxes - Expense composition (Details) - CAD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
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| Current income tax expense | ||||
| For the current reporting period | $ 71 | $ 139 | $ 197 | $ 283 |
| Adjustments recognized in the current period for income taxes of prior periods | (1) | (8) | (1) | (8) |
| Total | 70 | 131 | 196 | 275 |
| Deferred income tax expense (recovery) | ||||
| Arising from the origination and reversal of temporary differences | 83 | 6 | 114 | 13 |
| Revaluation of deferred income tax liability to reflect future income tax rates | (121) | (121) | ||
| Adjustments recognized in the current period for income taxes of prior periods | (1) | 8 | (1) | 8 |
| Total | (39) | 14 | (8) | 21 |
| Income taxes | $ 31 | $ 145 | $ 188 | $ 296 |
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- Definition Adjustments of tax expense (income) recognised in the period for current tax of prior periods. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Adjustments of tax expense (income) recognised in the period for the deferred tax of prior periods. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The amount of income taxes payable (recoverable) in respect of the taxable profit (tax loss) for a period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The amount of current tax expense (income) and adjustments for the current tax of prior periods. [Refer: Current tax expense (income); Adjustments for current tax of prior periods] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- References No definition available.
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- Definition The amount of tax expense or income relating to changes in deferred tax liabilities and deferred tax assets, recognised in profit or loss. [Refer: Deferred tax assets; Deferred tax expense (income); Deferred tax liabilities] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of deferred tax expense or income relating to the creation or reversal of temporary differences. [Refer: Temporary differences [member]; Deferred tax expense (income)] Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The amount of deferred tax expense or income relating to tax rate changes or the imposition of new taxes. [Refer: Deferred tax expense (income)] Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The aggregate amount included in the determination of profit (loss) for the period in respect of current tax and deferred tax. [Refer: Current tax expense (income); Deferred tax expense (income)] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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