XML 97 R54.htm IDEA: XBRL DOCUMENT
v3.20.2

Post-employee benefit plans - Narrative (Details) - CAD ($) $ in Millions | 3 Months Ended | 6 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018
Employee Benefits [Abstract] |  |  |  |  |  |  |
Other comprehensive income, before tax, gains (losses) | $ (2,215) | $ 150 |  |  |  |  |
Post-employment benefit obligations | $ (4,673) | $ (1,057) |  |  |  |  |
Discount rates | 2.80% | 2.80% | 4.20% | 3.10% | 3.00% | 3.30% | 3.80%
Return on plan assets | $ 2,458 | $ 1,207 |  |  |  |  |
Return on plan assets, percent | 10.70% | 6.50% |  |  |  |  |

X
- Definition Employee Benefits [Abstract] + References No definition available. + Details
Name: | bce_EmployeeBenefitsAbstract
Namespace Prefix: | bce_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Return On Plan Assets, Including Amounts Included In Net Interest On The Net Defined Benefit Liability (Asset) + References No definition available. + Details
Name: | bce_ReturnOnPlanAssetsIncludingAmountsIncludedInNetInterestOnTheNetDefinedBenefitLiabilityAsset
Namespace Prefix: | bce_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Return On Plan Assets, Including Amounts Included In Net Interest On The Net Defined Benefit Liability (Asset), Percent + References No definition available. + Details
Name: | bce_ReturnOnPlanAssetsIncludingAmountsIncludedInNetInterestOnTheNetDefinedBenefitLiabilityAssetPercent
Namespace Prefix: | bce_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The discount rate used as the significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_144&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_ActuarialAssumptionOfDiscountRates
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The decrease (increase) in a net defined benefit liability (asset) resulting from the remeasurement of that net defined benefit liability (asset). [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 141 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_141_c&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of other comprehensive income, before tax, related to gains (losses) in relation to changes in the revaluation surplus. [Refer: Other comprehensive income, before tax; Revaluation surplus] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 91 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_91_b&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_7&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRevaluation
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration