v3.26.1
related party transactions (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
CAD ($)
Jun. 30, 2025
CAD ($)
Jun. 30, 2026
CAD ($)
EquityInstruments
Jun. 30, 2025
CAD ($)
EquityInstruments
Dec. 31, 2025
CAD ($)
Transactions with key management personnel          
Outstanding liability-accounted share-based compensation awards $ 0   $ 0   $ 0
Transactions with defined benefit pension plans          
Charges for management and administrative services to our defined benefit pension plans 3 $ 3 6 $ 6  
Key management personnel          
Transactions with key management personnel          
Short-term benefits 5 4 9 8  
Post-employment pension and other benefits 6 2 8 4  
Share-based compensation 30 19 42 32  
Total 41 25 59 44  
Notional value Awarded in period     63 40  
Grant-date fair value Awarded in period 53 48 $ 53 $ 48  
Number of months base salary considered for severance payments     18 months    
Annual cash bonus as a percentage of base salary upon termination without cause     50.00%    
TELUS Corporation restricted share units | Key management personnel          
Transactions with key management personnel          
Number of restricted share units Awarded in period (in shares) | EquityInstruments     3,673,007 1,601,848  
Notional value Awarded in period     $ 62 $ 35  
Grant-date fair value Awarded in period 52 43 $ 52 $ 43  
TELUS Corporation share options | Key management personnel          
Transactions with key management personnel          
Number of restricted share units Awarded in period (in shares) | EquityInstruments     1,000,000    
Notional value Awarded in period     $ 1    
Grant-date fair value Awarded in period $ 1   $ 1    
TELUS International (Cda) Inc. restricted share units | Key management personnel          
Transactions with key management personnel          
Number of restricted share units Awarded in period (in shares) | EquityInstruments       1,229,346  
Notional value Awarded in period       $ 5  
Grant-date fair value Awarded in period   $ 5   $ 5