v3.19.2
Common Share capital (Details)
shares in Millions, $ in Millions
1 Months Ended 6 Months Ended
Dec. 31, 2018
CAD ($)
shares
Jun. 30, 2019
Vote
shares
Common Share capital    
Minimum percentage of common shares issued and outstanding owned by Canadians   66.67%
Restricted share units    
Common Share capital    
Common shares reserved for issuance   12
TELUS Corporation share options    
Common Share capital    
Common shares reserved for issuance   47
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 2,000 2,000
Number of votes per common share | Vote   1
Common Shares | Maximum    
Common Share capital    
Purchase of common shares related to normal course issuer bid 8  
Cost of purchase of common shares related to normal course issuer bid | $ $ 250