Related party transactions - Narrative (Details) - CAD ($) $ in Millions |
12 Months Ended | |
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Dec. 31, 2025 |
Dec. 31, 2024 |
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| Associates and Joint Ventures | ||
| Disclosure of transactions between related parties [line items] | ||
| Recognized revenue, related parties | $ 16 | $ 9 |
| Incurred expenses, related parties | 145 | 150 |
| Master Trust Fund | Bell Canada | ||
| Disclosure of transactions between related parties [line items] | ||
| Recognized revenue, related parties | $ 14 | $ 14 |
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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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- References Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The amount of services received in related party transactions. [Refer: Total for all related parties [member]] Reference 1: http://www.xbrl.org/2003/role/exampleRef
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