The interest rate on borrowings. [Refer: Borrowings]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
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-URIDate 2025-03-27

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- 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.

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- Definition

The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

+ 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 112
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- Definition

The effective interest rate on borrowings.

+ References

No definition available.

+ Details

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- Definition

The first no-call period fixed interest rate on borrowings.

+ References

No definition available.

+ Details

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- Definition

The issue price of the borrowings per $1000 increment of debt.

+ References

No definition available.

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- Definition

Redemption period for the borrowings.

+ References

No definition available.

+ Details

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- Definition

Percentage price of original principal amount of borrowings at which borrowings can be redeemed by the issuer.

+ References

No definition available.

+ Details

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- Definition

Percentage price of original principal amount of borrowings plus accrued and unpaid interest at which borrowings can be repurchased by the issuer upon the occurrence of a change in control triggering event, as required by provisions set out in the Notes.

+ References

No definition available.

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- Definition

Represents the date when the no-call period ends. A no-call period is a set time during which the issuer cannot redeem the bond early. Once this period ends (i.e., at the cessation date), the issuer is allowed to call (redeem) the bond before maturity.

+ References

No definition available.

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- Definition

Represents the reset minimum percentage.

+ References

No definition available.

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- Definition

Fixed exchange rate of the derivative to convert them into reporting currency.

+ References

No definition available.

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- Definition

The date the debt instrument was issued.

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

The date when the debt instrument is scheduled to be fully repaid.

+ References

No definition available.

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Balance Type:	na
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- Definition

Total long-term borrowings, including the current and non-current portion.

+ References

No definition available.

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- Definition

Percentage Of Principal Used In determining Leverage Ratios

+ References

No definition available.

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long-term debt - TELUS Corporation junior subordinated notes (Details) $ in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2026 CAD ($) $ / NotesSeries	Jun. 30, 2025 CAD ($) $ / NotesSeries	Jun. 30, 2026 USD ($) $ / NotesSeries	Dec. 31, 2025 CAD ($)	Apr. 30, 2025 CAD ($) $ / NotesSeries
long-term debt
Long-term debt	$ 30,231	$ 32,194		$ 30,539
Prior to maturity date \| Foreign exchange derivative
long-term debt
Redemption price percentage	100.00%
TELUS Corporation junior subordinated notes
long-term debt
Leverage ratios	50.00%
Repurchase offer price, expressed as percentage of principal	102.00%
TELUS Corporation junior subordinated notes \| Prior to maturity date
long-term debt
Redemption price percentage	100.00%
TELUS Corporation junior subordinated notes \| Maximum \| Prior to maturity date
long-term debt
Redemption period	60 days
TELUS Corporation junior subordinated notes \| Maximum \| On or after the redemption cessation date
long-term debt
Redemption period		90 days
TELUS Corporation junior subordinated notes \| Minimum \| Prior to maturity date
long-term debt
Redemption period	10 days
TELUS Corporation junior subordinated notes \| Minimum \| On or after the redemption cessation date
long-term debt
Redemption period	10 days
6.25% Fixed-to-Fixed Rate, Series CAR
long-term debt
Issued	Multiple
Maturity	July 2055
Issue price \| $ / NotesSeries	1,006.41		1,006.41
Effective interest rate	6.09%		6.09%
Principal face amount: Originally issued		$ 1,100
Long-term debt		$ 1,500
No-call period cessation date	July 21, 2030
Rate reset	6.25%		6.25%
Interest rate on borrowings	6.25%		6.25%
6.25% Fixed-to-Fixed Rate, Series issued in April 2025
long-term debt
Issue price \| $ / NotesSeries					999.65
Effective interest rate					6.25%
Principal face amount: Originally issued					$ 1,100
Interest rate on borrowings					6.25%
6.25% Fixed-to-Fixed Rate, Series issued in June 2025
long-term debt
Issue price \| $ / NotesSeries		1,026.25
Effective interest rate		5.61%
Principal face amount: Originally issued		$ 375
6.75% Fixed-to-Fixed Rate, Series CAS
long-term debt
Issued	Multiple
Maturity	July 2055
Issue price \| $ / NotesSeries	1,020.45		1,020.45
Effective interest rate	6.46%		6.46%
Principal face amount: Originally issued		500
Long-term debt		$ 925
No-call period cessation date	July 21, 2035
Rate reset	6.75%		6.75%
Interest rate on borrowings	6.75%		6.75%
6.75% Fixed-to-Fixed Rate, Series issued in April 2025
long-term debt
Issue price \| $ / NotesSeries					999.59
Effective interest rate					6.75%
Principal face amount: Originally issued					$ 500
Interest rate on borrowings					6.75%
6.75% Fixed-to-Fixed Rate, Series issued in June 2025
long-term debt
Issue price \| $ / NotesSeries		1,045
Effective interest rate		6.13%
Principal face amount: Originally issued		$ 425
U.S. Dollar 6.625% Fixed-to-Fixed Rate, Series A
long-term debt
Issued	June 2025
Maturity	Oct. 2055
Issue price \| $ / NotesSeries	1,000		1,000
Effective interest rate	6.625%		6.625%
Principal face amount: Originally issued			$ 700
Long-term debt			$ 700
No-call period cessation date	Oct. 15, 2030
Rate reset	6.625%		6.625%
Interest rate on borrowings	6.625%		6.625%
U.S. Dollar 6.625% Fixed-to-Fixed Rate, Series A \| Foreign exchange derivative
long-term debt
Principal face amount: Originally issued	$ 1,000
First no-call period interest rate fixed at	5.79%		5.79%
Fixed exchange rate	1.3743		1.3743
U.S. Dollar 7.00% Fixed-to-Fixed Rate, Series B
long-term debt
Issued	June 2025
Maturity	Oct. 2055
Issue price \| $ / NotesSeries	1,000		1,000
Effective interest rate	7.00%		7.00%
Principal face amount: Originally issued			$ 800
Long-term debt			$ 800
No-call period cessation date	Oct. 15, 2035
Rate reset	7.00%		7.00%
Interest rate on borrowings	7.00%		7.00%
U.S. Dollar 7.00% Fixed-to-Fixed Rate, Series B \| Foreign exchange derivative
long-term debt
Principal face amount: Originally issued	$ 1,100
First no-call period interest rate fixed at	6.42%		6.42%
Fixed exchange rate	1.3743		1.3743
U.S. Dollar 6.375% Fixed-to-Fixed Rate, Series C
long-term debt
Issued	Dec. 2025
Maturity	June 2056
Issue price \| $ / NotesSeries	1,000		1,000
Effective interest rate	6.375%		6.375%
Principal face amount: Originally issued			$ 800
Long-term debt			$ 800
No-call period cessation date	June 9, 2031
Rate reset	6.375%		6.375%
Interest rate on borrowings	6.375%		6.375%
U.S. Dollar 6.375% Fixed-to-Fixed Rate, Series C \| Foreign exchange derivative
long-term debt
Principal face amount: Originally issued	$ 1,100
First no-call period interest rate fixed at	5.64%		5.64%
Fixed exchange rate	1.3957		1.3957
U.S. Dollar 6.625% Fixed-to-Fixed Rate, Series D
long-term debt
Issued	Dec. 2025
Maturity	June 2056
Issue price \| $ / NotesSeries	1,000		1,000
Effective interest rate	6.625%		6.625%
Principal face amount: Originally issued			$ 700
Long-term debt			$ 700
No-call period cessation date	June 9, 2036
Rate reset	6.625%		6.625%
Interest rate on borrowings	6.625%		6.625%
U.S. Dollar 6.625% Fixed-to-Fixed Rate, Series D \| Foreign exchange derivative
long-term debt
Principal face amount: Originally issued	$ 1,000
First no-call period interest rate fixed at	6.07%		6.07%
Fixed exchange rate	1.3955		1.3955
5.375% Fixed-to-Fixed Rate, Series CAT
long-term debt
Issued	Dec. 2025
Maturity	June 2056
Issue price \| $ / NotesSeries	1,000		1,000
Effective interest rate	5.375%		5.375%
Principal face amount: Originally issued	$ 400
Long-term debt	$ 400
No-call period cessation date	June 9, 2031
Rate reset	5.375%		5.375%
Interest rate on borrowings	5.375%		5.375%
5.875% Fixed-to-Fixed Rate, Series CAU
long-term debt
Issued	Dec. 2025
Maturity	June 2056
Issue price \| $ / NotesSeries	1,000		1,000
Effective interest rate	5.875%		5.875%
Principal face amount: Originally issued	$ 400
Long-term debt	$ 400
No-call period cessation date	June 9, 2036
Rate reset	5.875%		5.875%
Interest rate on borrowings	5.875%		5.875%