Related party transactions - Narrative (Details) - CAD ($) $ in Millions	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Associates and Joint Arrangements
Disclosure of transactions between related parties [line items]
Recognized revenue, related parties	$ 11	$ 16
Incurred expenses, related parties	177	180
Bell Canada \| Master Trust Fund
Disclosure of transactions between related parties [line items]
Recognized revenue, related parties	$ 10	$ 10

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

No definition available.

+ Details

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- Definition

The amount of revenue arising from the rendering of services in related party transactions. [Refer: Revenue; Related parties [member]]

+ References

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-Name IAS
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-URIDate 2017-03-09

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- Definition

The amount of services received in related party transactions. [Refer: Related parties [member]]

+ References

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