v3.24.0.1
Related party transactions - Transactions with key management personnel (Details)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2023
USD ($)
shares
Dec. 31, 2022
USD ($)
shares
$ / shares
Dec. 31, 2021
USD ($)
shares
$ / shares
Related party transactions      
Share options granted (in shares) | shares 0 0  
Minimum      
Related party transactions      
Number of months base salary considered for severance payments 12 months    
Maximum      
Related party transactions      
Number of months base salary considered for severance payments 18 months    
TELUS Corporation (parent) | Phantom restricted share units      
Related party transactions      
Number of other equity instruments granted in share-based payment arrangement (in shares) | shares   0 24,757
Grant-date-fair-value of awarded units (in dollars per share) | $ / shares   $ 0 $ 27.58
Senior Leadership Team      
Related party transactions      
Short-term benefits $ 5 $ 7 $ 5
Post-employment pension and other benefits 2 1 1
Share-based compensation $ 11 $ 11 $ 43
Share options granted (in shares) | shares     579,949
Weighted average fair value at measurement date, share options granted     $ 3
Senior Leadership Team | Restricted Stock Units      
Related party transactions      
Number of other equity instruments granted in share-based payment arrangement (in shares) | shares 458,854 301,190 863,755
Weighted average fair value at measurement date, other equity instruments granted $ 9 $ 8 $ 22
Senior Leadership Team | Phantom Performance Share Units      
Related party transactions      
Number of other equity instruments granted in share-based payment arrangement (in shares) | shares 322,984 229,627 192,064
Weighted average fair value at measurement date, other equity instruments granted $ 7 $ 6 $ 6
Senior Leadership Team | TELUS Corporation (parent) | Telus Phantom Restricted Share      
Related party transactions      
Number of other equity instruments granted in share-based payment arrangement (in shares) | shares     24,757
Weighted average fair value at measurement date, other equity instruments granted     $ 1