XML 204 R127.htm IDEA: XBRL DOCUMENT
v3.20.4

Post-employee benefit plans - Significant Assumptions (Details) - year | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Post-employment benefit obligations |  |
Discount rate | 2.60% | 3.10%
Rate of compensation increase | 2.25% | 2.25%
Cost of living indexation rate | 1.60% | 1.60%
Life expectancy at age 65 (years) | 23.2 | 23.2
Net post-employment benefit plans cost |  |
Discount rate | 3.20% | 4.00%
Rate of compensation increase | 2.25% | 2.25%
Cost of living indexation rate | 1.60% | 1.60%
Life expectancy at age 65 (years) | 23.2 | 23.1
Weighted average duration of defined benefit obligation | 15 years |
Cost of medication |  |
Net post-employment benefit plans cost |  |
Actuarial assumption of medical cost trend rates | 6.50% |
Ultimate actuarial assumption of medical cost trend rates | 4.00% |
Term to reach ultimate actuarial assumption of medical cost trend rate | 20 years |
Cost of covered dental benefits |  |
Net post-employment benefit plans cost |  |
Actuarial assumption of medical cost trend rates | 4.00% |
Cost of covered hospital benefits |  |
Net post-employment benefit plans cost |  |
Actuarial assumption of medical cost trend rates | 3.70% |
Cost of other covered healthcare benefits |  |
Net post-employment benefit plans cost |  |
Actuarial assumption of medical cost trend rates | 4.00% |

X
- Definition Actuarial Assumption Of Discount Rates, Used to Calculate Post-employment Benefit Expense + References No definition available. + Details
Name: | bce_ActuarialAssumptionOfDiscountRatesUsedtoCalculatePostemploymentBenefitExpense
Namespace Prefix: | bce_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Actuarial Assumption Of Expected Rates Of Inflation, Used To Calculate Post-Employment Benefit Expense + References No definition available. + Details
Name: | bce_ActuarialAssumptionOfExpectedRatesOfInflationUsedToCalculatePostEmploymentBenefitExpense
Namespace Prefix: | bce_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Actuarial Assumption Of Expected Rates Of Salary Increases, Used To Calculate Post-Employment Benefit Expense + References No definition available. + Details
Name: | bce_ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesUsedToCalculatePostEmploymentBenefitExpense
Namespace Prefix: | bce_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Actuarial Assumption Of Life Expectancy After Retirement, Used To Calculate Post-Employment Benefit Expense + References No definition available. + Details
Name: | bce_ActuarialAssumptionOfLifeExpectancyAfterRetirementUsedToCalculatePostEmploymentBenefitExpense
Namespace Prefix: | bce_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition Actuarial Assumption To Measure Post-Employment Benefit Obligations [Abstract] + References No definition available. + Details
Name: | bce_ActuarialAssumptionToMeasurePostEmploymentBenefitObligationsAbstract
Namespace Prefix: | bce_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Actuarial Assumption To Measure Post-Employment Benefit Plans Cost [Abstract] + References No definition available. + Details
Name: | bce_ActuarialAssumptionToMeasurePostEmploymentBenefitPlansCostAbstract
Namespace Prefix: | bce_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Actuarial assumption of life expectancy after retirement1 + References No definition available. + Details
Name: | bce_Actuarialassumptionoflifeexpectancyafterretirement1
Namespace Prefix: | bce_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Ultimate Actuarial Assumption Of Medical Cost Trend Rates + References No definition available. + Details
Name: | bce_UltimateActuarialAssumptionOfMedicalCostTrendRates
Namespace Prefix: | bce_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Ultimate Actuarial Assumption Of Medical Cost Trend Rates, Term + References No definition available. + Details
Name: | bce_UltimateActuarialAssumptionOfMedicalCostTrendRatesTerm
Namespace Prefix: | bce_
Data Type: | xbrli:durationItemType
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 2020-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_144&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_ActuarialAssumptionOfDiscountRates
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The expected rate of inflation that is used as a significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit plans [member]; Defined benefit obligation, at present value; Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_144&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The expected rate of salary increases used as a significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit plans [member]; Defined benefit obligation, at present value; Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_144&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Medical cost trend rate used as 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 2020-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_144&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_ActuarialAssumptionOfMedicalCostTrendRates
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The weighted average duration of a defined benefit obligation. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 147 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_147_c&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_WeightedAverageDurationOfDefinedBenefitObligation2019
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_ActuarialAssumptionsAxis=bce_ActuarialAssumptionOfMedicalCostTrendRatesMedicationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ActuarialAssumptionsAxis=bce_ActuarialAssumptionOfMedicalCostTrendRatesDentalBenefitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ActuarialAssumptionsAxis=bce_ActuarialAssumptionOfMedicalCostTrendRatesHospitalBenefitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ActuarialAssumptionsAxis=bce_ActuarialAssumptionOfMedicalCostTrendRatesOtherHealthcareBenefitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |