v3.19.2

long-term debt - TELUS Corporation commercial paper (Details) $ in Millions, $ in Millions | Jun. 30, 2019 USD ($) | Jun. 30, 2019 CAD ($) | Jan. 01, 2019 CAD ($) | Dec. 31, 2018 CAD ($) | Jun. 30, 2018 CAD ($)
--- | --- | --- | --- | --- | ---
TELUS Corporation commercial paper |  |  |  |  |
Maximum aggregate amount of credit facility |  | $ 2,250 |  | $ 2,250 |
Current portion of non-current borrowings |  | 1,564 | $ 1,016 | 836 |
Long-term debt |  | 16,579 |  | 14,101 | $ 14,145
TELUS Corporation commercial paper |  |  |  |  |
TELUS Corporation commercial paper |  |  |  |  |
Maximum aggregate amount of credit facility |  | 1,400 |  | 1,400 |
Long-term debt | $ 224 | $ 293 |  | $ 774 |
Weighted average interest rate | 2.80% | 2.80% |  |  |
TELUS Corporation credit facility |  |  |  |  |
TELUS Corporation commercial paper |  |  |  |  |
Maximum aggregate amount of credit facility |  | $ 2,250 |  |  |
Current portion of non-current borrowings |  | $ 0 |  |  |

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- Definition The current portion of non-current borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard -URIDate 2018-03-16 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The effective weighted average interest rate on borrowings. + References No definition available. + Details
Name: | tu_BorrowingsEffectiveWeightedAverageInterestRate
Namespace Prefix: | tu_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References No definition available. + Details
Name: | tu_IfrsLineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | tu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Total long-term borrowings, including the current and non-current portion. + References No definition available. + Details
Name: | tu_LongTermBorrowingsCurrentAndNonCurrent
Namespace Prefix: | tu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Pertains to the TELUS Corporation unsecured commercial paper program. + References No definition available. + Details
Name: | tu_TELUSCorporationCommercialPaperAbstract
Namespace Prefix: | tu_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_BorrowingsByNameAxis=tu_TelusCorporationCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |