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long-term debt (Details) $ in Millions, $ in Billions	Jun. 30, 2025 CAD ($)	Jun. 30, 2025 USD ($)	Dec. 31, 2024 CAD ($)	Dec. 31, 2024 USD ($)	Jun. 30, 2024 CAD ($)
Details of long-term debt
Long-term debt excluding Lease liabilities	$ 29,101		$ 25,972
Lease liabilities	3,093		2,882
Long-term debt	32,194		28,854		$ 28,151
Current	4,465		3,246
Non-current	27,729		25,608
TELUS Corporation senior notes
Details of long-term debt
Long-term debt excluding Lease liabilities	21,045		22,077
TELUS Corporation commercial paper
Details of long-term debt
Long-term debt excluding Lease liabilities	991		1,404
Long-term debt	1,000	$ 0.7	1,400	$ 1.0
TELUS Communications Inc. debentures
Details of long-term debt
Long-term debt excluding Lease liabilities	200		200
TELUS Corporation junior subordinated notes
Details of long-term debt
Long-term debt excluding Lease liabilities	4,414
TELUS International (Cda) Inc. credit facility
Details of long-term debt
Long-term debt excluding Lease liabilities	1,610		1,703
Other
Details of long-term debt
Long-term debt excluding Lease liabilities	273
Other
Details of long-term debt
Long-term debt excluding Lease liabilities	$ 568		$ 588

X

- Definition

The current portion of non-current borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The amount of liabilities related to the entity's leases. Lease is a contract, or part of a contract, that conveys the right to use an underlying asset for a period of time in exchange for consideration.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Total long-term borrowings, including the current and non-current portion.

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Total long-term borrowings, including the current and non-current portion but excluding the lease liabilities.

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