XML 150 R97.htm IDEA: XBRL DOCUMENT v3.25.0.1

income taxes - Other (Details) - Investment Tax Credits - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Other
Tax benefits recognized	$ 51	$ 25
Property, plant, and equipment and/or intangible assets
Other
Tax benefits recognized	$ 48	$ 19

X

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

X

- Definition

The amount of benefit arising from a previously unrecognised tax loss, tax credit or temporary difference of a prior period that is used to reduce current tax expense. [Refer: Temporary differences [member]; Unused tax losses [member]; Unused tax credits [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 12
-IssueDate 2024-01-01
-Paragraph 80
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2024-en-r&anchor=para_80_e&doctype=Standard
-URIDate 2024-03-27

+ Details

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

X

- Details

Name:	ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis=ifrs-full_UnusedTaxCreditsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	tu_IfrsBalanceSheetLocationAxis=tu_PropertyPlantAndEquipmentAndOrIntangibleAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: