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Related party transactions - Summary of Significant Subsidiaries (Details) - SUBSIDIARY	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Bell Canada
Disclosure of transactions between related parties [line items]
OWNERSHIP PERCENTAGE	100.00%	100.00%
Bell Mobility Inc.
Disclosure of transactions between related parties [line items]
OWNERSHIP PERCENTAGE	100.00%	100.00%
Bell Media Inc.
Disclosure of transactions between related parties [line items]
OWNERSHIP PERCENTAGE	100.00%	100.00%

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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.

+ References

No definition available.

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- Definition

The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2022-03-24
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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