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Segmented information - Narrative (Details)	Dec. 31, 2023 store segment
Operating Segments [Abstract]
Number of reportable segments | segment	2
Number of consumer electronics retail stores	165
Number of consumer electronics retail stores expected to close	107

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- Definition

Number Of Consumer Electronics Retail Stores

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No definition available.

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- Definition

Number Of Consumer Electronics Retail Stores Expected To Close

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No definition available.

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Namespace Prefix:	bce_
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- Definition

Number Of Reportable Segments1

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No definition available.

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Namespace Prefix:	bce_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

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- Definition

Operating Segments [Abstract]

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No definition available.

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