financial instruments - Significant unobservable inputs used in the fair value measurement (Details) - CAD ($) $ in Millions |
6 Months Ended | |||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
Dec. 31, 2024 |
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| Disclosure of fair value measurement of assets | ||||
| Balance of period | $ 56,812 | $ 59,613 | ||
| Virtual power purchase agreements unrealized change in forward element | At fair value | ||||
| Disclosure of fair value measurement of assets | ||||
| Included in net income, excluding income taxes | 3 | $ 2 | ||
| Included in other comprehensive income, excluding income taxes | (21) | 17 | ||
| Balance of period | $ (46) | $ (19) | $ (28) | $ (38) |
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- Definition The amount of a present economic resource controlled by the entity as a result of past events. Economic resource is a right that has the potential to produce economic benefits. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. No definition available.
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- Definition The gains (losses) including exchange differences recognised in other comprehensive income on the fair value measurement of assets. [Refer: At fair value [member]; Other comprehensive income] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The gains (losses) including exchange differences recognised in profit or loss on the fair value measurement of assets. [Refer: At fair value [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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