XML 156 R79.htm IDEA: XBRL DOCUMENT v3.20.4

Significant accounting policies - Share-Based Payments (Details)	12 Months Ended
	Dec. 31, 2020
ESP
Disclosure of terms and conditions of share-based payment arrangement [line items]
Award vesting period	2 years

X

- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Period2

+ References

No definition available.

+ Details

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Namespace Prefix:	bce_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

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.

+ References

No definition available.

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=bce_EmployeeStock1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: