Income Taxes - Deferred Tax Assets and Liabilities Reflected on the Consolidated Statements of Financial Position (Details) - CAD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|---|
| Income Taxes [Abstract] | |||
| Deferred tax assets | $ 5,741 | $ 5,884 | |
| Deferred tax liabilities | (2,018) | (1,890) | |
| Net deferred tax assets (liabilities) | $ 3,723 | $ 3,994 | $ 5,042 |
| X | ||||||||||
- Definition The amounts of income taxes recoverable in future periods in respect of: (a) deductible temporary differences; (b) the carryforward of unused tax losses; and (c) the carryforward of unused tax credits. [Refer: Temporary differences [member]; Unused tax credits [member]; Unused tax losses [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The amounts of income taxes payable in future periods in respect of taxable temporary differences. [Refer: Temporary differences [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The amount of deferred tax liabilities or assets. [Refer: Deferred tax liabilities; Deferred tax assets] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Income Taxes [Abstract] No definition available.
|