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

The number of other equity instruments (ie other than share options) outstanding in a share-based payment arrangement.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 2
-IssueDate 2021-01-01
-Paragraph 45
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2021-en-r&anchor=para_45&doctype=Standard
-URIDate 2021-03-24

Name:	ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

The payout weight of the customer connections performance condition in a share-based payment arrangement.

No definition available.

Name:	tu_PayoutWeightOfCustomerConnectionPerformanceConditionInSharebasedPaymentArrangement
Namespace Prefix:	tu_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

The payout weight of total shareholder return on our entity's shares relative to an international peer group in a share-based payment arrangement.

No definition available.

Name:	tu_PayoutWeightOfShareholderReturnPerformanceConditionInSharebasedPaymentArrangement
Namespace Prefix:	tu_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

The percentage of variable payout of actual awards in a share-based payment arrangement.

No definition available.

Name:	tu_VariablePayoutOfAwardsInSharebasedPaymentArrangement
Namespace Prefix:	tu_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=tu_TelusCorporationRestrictedStockUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=tu_TelusCorporationPerformanceRestrictedStockUnitsCustomerConnectionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=tu_TelusCorporationPerformanceRestrictedStockUnitsShareholderReturnMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=tu_TelusCorporationServiceRestrictedStockUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: