share-based compensation - TELUS Corporation employee share purchase plan (Details) - CAD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Employee share purchase plan
share-based compensation
Dividend reinvestment in Common Shares	$ 12	$ 11	$ 23	$ 21

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