v3.26.1
owners' equity (Details)
shares in Millions
6 Months Ended
Jun. 30, 2026
Vote
shares
Dec. 31, 2025
shares
Common Share capital    
Minimum percentage of common shares issued and outstanding owned by Canadians 66.67%  
First Preferred Shares    
Common Share capital    
Shares authorized 1,000 1,000
Second Preferred Shares    
Common Share capital    
Shares authorized 1,000 1,000
Common Shares    
Common Share capital    
Shares authorized 4,000 4,000
Number of votes per common share | Vote 1  
Common Shares | Dividend reinvestment and share purchase plan    
Common Share capital    
Shares reserved for issuance 95  
Common Shares | Restricted share units    
Common Share capital    
Shares reserved for issuance 66  
Common Shares | TELUS Corporation share options awards    
Common Share capital    
Shares reserved for issuance 12