XML 203 R126.htm IDEA: XBRL DOCUMENT
v3.20.4

Post-employee benefit plans - Funded Status of Post-Employment Benefit Plans Cost (Details) - Plan asset (deficit) - CAD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Disclosure of defined benefit plans [line items] |  |
Present value of post-employment benefit obligations | $ (28,749) | $ (27,179)
Fair value of plan assets | 28,129 | 25,850
Plan surplus (deficit) | (620) | (1,329)
FUNDED |  |
Disclosure of defined benefit plans [line items] |  |
Present value of post-employment benefit obligations | (26,421) | (24,961)
Fair value of plan assets | 27,727 | 25,474
Plan surplus (deficit) | 1,306 | 513
PARTIALLY FUNDED |  |
Disclosure of defined benefit plans [line items] |  |
Present value of post-employment benefit obligations | (2,011) | (1,918)
Fair value of plan assets | 402 | 376
Plan surplus (deficit) | (1,609) | (1,542)
UNFUNDED |  |
Disclosure of defined benefit plans [line items] |  |
Present value of post-employment benefit obligations | (317) | (300)
Fair value of plan assets | 0 | 0
Plan surplus (deficit) | $ (317) | $ (300)

X
- Definition The present value, without deducting any plan assets, of expected future payments required to settle the obligation resulting from employee service in the current and prior periods. [Refer: Plan assets, at fair value] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 57 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_57_a&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_DefinedBenefitObligationAtPresentValue
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition The fair value of defined benefit plan assets. Plan assets comprise assets held by a long-term employee benefit fund and qualifying insurance policies. [Refer: At fair value [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 57 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_57_a&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_PlanAssetsAtFairValue
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The fair value of any plan assets, less the present value of the defined benefit obligation. [Refer: Plan assets [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 57 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_57_a&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_SurplusDeficitInPlan
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ifrs-full_NetDefinedBenefitLiabilityAssetAxis=bce_SurplusDeficitInPlanExcludingEffectofAssetCeilingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bce_RetirementPlanFundingStatus1Axis=bce_FundedPlan1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bce_RetirementPlanFundingStatus1Axis=bce_PartiallyFundedPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bce_RetirementPlanFundingStatus1Axis=bce_UnfundedPlan1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |