Consideration Recognized As Of Acquisition Date

No definition available.

Name:	bce_ConsiderationRecognizedAsOfAcquisitionDate
Namespace Prefix:	bce_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Consideration Transferred, Liabilities Assumed, Debt

+ References

No definition available.

+ Details

Name:	bce_ConsiderationTransferredLiabilitiesAssumedDebt
Namespace Prefix:	bce_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Number Of Major Cable Carriers

+ References

No definition available.

+ Details

Name:	bce_NumberOfMajorCableCarriers
Namespace Prefix:	bce_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The fair value, at acquisition date, of the consideration transferred in a business combination. [Refer: Total for all business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2024-01-01
-Paragraph B64
-Subparagraph f
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B64_f&doctype=Appendix&subtype=B
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

The amount of revenue from contracts with customers. A customer is a party that has contracted with an entity to obtain goods or services that are an output of the entity’s ordinary activities in exchange for consideration.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2024-01-01
-Paragraph 114
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2024-en-r&anchor=para_114&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2024-01-01
-Paragraph 113
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2024-en-r&anchor=para_113_a&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_RevenueFromContractsWithCustomers
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	ifrs-full_ClassesOfContingentLiabilitiesAxis=ifrs-full_LegalProceedingsContingentLiabilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BusinessCombinationsAxis=bce_ZipfyFiberMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Commitments and contingencies - Narrative (Details) $ in Millions, $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2021 CAD ($)	Dec. 31, 2024 CAD ($) carrier	Dec. 31, 2023 CAD ($)	Dec. 31, 2025 CAD ($)	Dec. 31, 2025 USD ($)
Disclosure of contingent liabilities [line items]
Number of major cable carriers \| carrier		5
Operating revenues		$ 24,409	$ 24,673
Legal proceedings contingent liability
Disclosure of contingent liabilities [line items]
Operating revenues	$ 44
Forecast
Disclosure of contingent liabilities [line items]
Consideration transferred, liabilities assumed, debt				$ 2,000	$ 1,450
Consideration transferred, acquisition-date fair value				7,000	5,100
Forecast \| Zipfy Fiber
Disclosure of contingent liabilities [line items]
Consideration recognized as of acquisition date				$ 5,000	$ 3,650