v3.19.2

long-term debt - TELUS Corporation credit facility (Details) $ in Millions, $ in Millions | Jun. 30, 2019 USD ($) item | Jun. 30, 2019 CAD ($) item | Dec. 31, 2018 CAD ($) | Jun. 30, 2018 CAD ($)
--- | --- | --- | --- | ---
TELUS Corporation credit facility |  |  |  |
Net available |  | $ 1,957 | $ 1,476 |
Gross available |  | 2,250 | 2,250 |
Long-term debt |  | $ 16,579 | 14,101 | $ 14,145
TELUS Corporation credit facility |  |  |  |
TELUS Corporation credit facility |  |  |  |
Number of financial ratio tests | item | 2 | 2 |  |
Gross available |  | $ 2,250 |  |
Letters of credit outstanding |  | $ 182 | 184 |
TELUS Corporation credit facility | Maximum |  |  |  |
TELUS Corporation credit facility |  |  |  |
Net debt to operating cash flow ratio | 4.00 | 4.00 |  |
TELUS Corporation credit facility | Minimum |  |  |  |
TELUS Corporation credit facility |  |  |  |
Operating cash flow to interest expense ratio | 2.00 | 2.00 |  |
TELUS Corporation commercial paper |  |  |  |
TELUS Corporation credit facility |  |  |  |
Gross available |  | $ 1,400 | 1,400 |
Long-term debt | $ 224 | 293 | $ 774 |
Innovation, Science and Economic Development |  |  |  |
TELUS Corporation credit facility |  |  |  |
Maximum letter of credit required to participate in wireless spectrum auction |  | $ 880 |  |

X
- Definition The amount of undrawn borrowing facilities that may be available for future operating activities and to settle capital commitments. [Refer: Capital commitments] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2018-01-01 -Paragraph 50 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_50_a&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 total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | tu_IfrsLettersOfCreditOutstandingAmount
Namespace Prefix: | tu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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

X
- Definition The maximum amount of letters of credit that any individual participant could be required to deliver in order to participate in the spectrum wireless auction. + References No definition available. + Details
Name: | tu_MaximumLetterOfCreditRequiredOfParticipantToParticipateInWirelessSpectrumAuction
Namespace Prefix: | tu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Represents the number of financial ratio tests defined in the agreement. + References No definition available. + Details
Name: | tu_NumberOfFinancialRatioTests
Namespace Prefix: | tu_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Ratio of net debt divided by operating cash flow. + References No definition available. + Details
Name: | tu_RatioOfNetDebtToOperatingCashFlow
Namespace Prefix: | tu_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Ratio of operating cash flow divided by interest expense. + References No definition available. + Details
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Namespace Prefix: | tu_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

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- Definition Pertains to the TELUS Corporation unsecured revolving bank credit facility. + References No definition available. + Details
Name: | tu_TELUSCorporationCreditFacilityAbstract
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
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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

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

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