XML 134 R123.htm IDEA: XBRL DOCUMENT
v3.26.1

long-term debt - TELUS Corporation - Other (unsecured) (Details) $ in Millions, $ in Millions | Jun. 30, 2026 CAD ($) | Mar. 31, 2026 USD ($) | Dec. 31, 2025 USD ($)
--- | --- | --- | ---
Redeemable preferred shares |  |  |
long-term debt |  |  |
Value of preferred shares issued | $ 51 | $ 200 | $ 200

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

X
- Definition The nominal value of capital arising from issuing preference shares. [Refer: Issued capital] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Note Expiry date 2027-01-01 -Name IAS -Number 1 -IssueDate 2025-01-01 -Paragraph 78 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_78_e&doctype=Standard -URIDate 2025-03-27 + Details
Name: | ifrs-full_IssuedCapitalPreferenceShares
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=tu_RedeemablePreferredSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |