v3.19.2
long-term debt - TELUS Corporation notes (Details)
$ in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Sep. 30, 2019
CAD ($)
Jun. 30, 2019
USD ($)
$ / NotesSeries
$ / NotesSeries
Aug. 07, 2019
CAD ($)
Jul. 23, 2019
CAD ($)
Jun. 30, 2019
CAD ($)
$ / NotesSeries
$ / NotesSeries
Dec. 31, 2018
CAD ($)
Jun. 30, 2018
CAD ($)
Feb. 28, 2018
CAD ($)
$ / NotesSeries
Mar. 31, 2017
CAD ($)
$ / NotesSeries
Dec. 31, 2015
CAD ($)
$ / NotesSeries
Apr. 30, 2014
CAD ($)
$ / NotesSeries
TELUS Corporation notes                      
Long-term debt         $ 16,579 $ 14,101 $ 14,145        
TELUS Corporation notes                      
TELUS Corporation notes                      
Repurchase offer price, expressed as percentage of principal   101.00%                  
5.05% Notes, Series CH                      
TELUS Corporation notes                      
Debt redeemed     $ 350 $ 650              
Fixed interest rate   5.05%     5.05%            
Issued   July 2010                  
Maturity   July 2020                  
Issue price per $1000 increment of debt | $ / NotesSeries   997.44     997.44            
Effective interest rate   5.08%     5.08%            
Principal face amount: Originally issued         $ 1,000            
Long-term debt         $ 1,000            
Redemption present value spread - Basis points   0.47%     0.47%            
Redemption present value spread - Cessation date   N/A                  
Redemption price percentage   100.00%                  
5.05% Notes, Series CH | Minimum                      
TELUS Corporation notes                      
Redemption period   30 days                  
5.05% Notes, Series CH | Maximum                      
TELUS Corporation notes                      
Redemption period   60 days                  
3.35% Notes, Series CJ                      
TELUS Corporation notes                      
Fixed interest rate   3.35%     3.35%            
Issued   December 2012                  
Maturity   March 2023                  
Issue price per $1000 increment of debt | $ / NotesSeries   998.83     998.83            
Effective interest rate   3.36%     3.36%            
Principal face amount: Originally issued         $ 500            
Long-term debt         $ 500            
Redemption present value spread - Basis points   0.40%     0.40%            
Redemption present value spread - Cessation date   Dec. 15, 2022                  
3.35% Notes, Series CK                      
TELUS Corporation notes                      
Fixed interest rate   3.35%     3.35%            
Issued   April 2013                  
Maturity   April 2024                  
Issue price per $1000 increment of debt | $ / NotesSeries   994.35     994.35            
Effective interest rate   3.41%     3.41%            
Principal face amount: Originally issued         $ 1,100            
Long-term debt         $ 1,100            
Redemption present value spread - Basis points   0.36%     0.36%            
Redemption present value spread - Cessation date   Jan. 2, 2024                  
4.40% Notes, Series CL                      
TELUS Corporation notes                      
Fixed interest rate   4.40%     4.40%            
Issued   April 2013                  
Maturity   April 2043                  
Issue price per $1000 increment of debt | $ / NotesSeries   997.68     997.68            
Effective interest rate   4.41%     4.41%            
Principal face amount: Originally issued         $ 600            
Long-term debt         $ 600            
Redemption present value spread - Basis points   0.47%     0.47%            
Redemption present value spread - Cessation date   Oct. 1, 2042                  
3.60% Notes, Series CM                      
TELUS Corporation notes                      
Fixed interest rate   3.60%     3.60%            
Issued   November 2013                  
Maturity   January 2021                  
Issue price per $1000 increment of debt | $ / NotesSeries   997.15     997.15            
Effective interest rate   3.65%     3.65%            
Principal face amount: Originally issued         $ 400            
Long-term debt         $ 400            
Redemption present value spread - Basis points   0.35%     0.35%            
Redemption present value spread - Cessation date   N/A                  
5.15% Notes, Series CN                      
TELUS Corporation notes                      
Fixed interest rate   5.15%     5.15%            
Issued   November 2013                  
Maturity   November 2043                  
Issue price per $1000 increment of debt | $ / NotesSeries   995.00     995.00            
Effective interest rate   5.18%     5.18%            
Principal face amount: Originally issued         $ 400            
Long-term debt         $ 400            
Redemption present value spread - Basis points   0.50%     0.50%            
Redemption present value spread - Cessation date   May 26, 2043                  
3.20% Notes, Series CO                      
TELUS Corporation notes                      
Fixed interest rate   3.20%     3.20%            
Issued   April 2014                  
Maturity   April 2021                  
Issue price per $1000 increment of debt | $ / NotesSeries   997.39     997.39            
Effective interest rate   3.24%     3.24%            
Principal face amount: Originally issued         $ 500            
Long-term debt         $ 500            
Redemption present value spread - Basis points   0.30%     0.30%            
Redemption present value spread - Cessation date   Mar. 5, 2021                  
4.85% Notes, Series CP                      
TELUS Corporation notes                      
Fixed interest rate   4.85%     4.85%           4.85%
Issued   Multiple 6                  
Maturity   April 2044                  
Issue price per $1000 increment of debt | $ / NotesSeries   987.91     987.91         974.38 998.74
Effective interest rate   4.93%     4.93%         5.02% 4.86%
Principal face amount: Originally issued         $ 500         $ 400 $ 500
Long-term debt         $ 900            
Redemption present value spread - Basis points   0.46%     0.46%            
Redemption present value spread - Cessation date   Oct. 5, 2043                  
3.75% Notes, Series CQ                      
TELUS Corporation notes                      
Fixed interest rate   3.75%     3.75%            
Issued   September 2014                  
Maturity   January 2025                  
Issue price per $1000 increment of debt | $ / NotesSeries   997.75     997.75            
Effective interest rate   3.78%     3.78%            
Principal face amount: Originally issued         $ 800            
Long-term debt         $ 800            
Redemption present value spread - Basis points   0.385%     0.385%            
Redemption present value spread - Cessation date   Oct. 17, 2024                  
4.75% Notes, Series CR                      
TELUS Corporation notes                      
Fixed interest rate   4.75%     4.75%            
Issued   September 2014                  
Maturity   January 2045                  
Issue price per $1000 increment of debt | $ / NotesSeries   992.91     992.91            
Effective interest rate   4.80%     4.80%            
Principal face amount: Originally issued         $ 400            
Long-term debt         $ 400            
Redemption present value spread - Basis points   0.515%     0.515%            
Redemption present value spread - Cessation date   July 17, 2044                  
2.35% Notes, Series CT                      
TELUS Corporation notes                      
Fixed interest rate   2.35%     2.35%            
Issued   March 2015                  
Maturity   March 2022                  
Issue price per $1000 increment of debt | $ / NotesSeries   997.31     997.31            
Effective interest rate   2.39%     2.39%            
Principal face amount: Originally issued         $ 1,000            
Long-term debt         $ 1,000            
Redemption present value spread - Basis points   0.355%     0.355%            
Redemption present value spread - Cessation date   Feb. 28, 2022                  
4.40% Notes, Series CU                      
TELUS Corporation notes                      
Fixed interest rate   4.40%     4.40%            
Issued   March 2015                  
Maturity   January 2046                  
Issue price per $1000 increment of debt | $ / NotesSeries   999.72     999.72            
Effective interest rate   4.40%     4.40%            
Principal face amount: Originally issued         $ 500            
Long-term debt         $ 500            
Redemption present value spread - Basis points   0.605%     0.605%            
Redemption present value spread - Cessation date   July 29, 2045                  
3.75% Notes, Series CV                      
TELUS Corporation notes                      
Fixed interest rate   3.75%     3.75%            
Issued   December 2015                  
Maturity   March 2026                  
Issue price per $1000 increment of debt | $ / NotesSeries   992.14     992.14            
Effective interest rate   3.84%     3.84%            
Principal face amount: Originally issued         $ 600            
Long-term debt         $ 600            
Redemption present value spread - Basis points   0.535%     0.535%            
Redemption present value spread - Cessation date   Dec. 10, 2025                  
2.80% U.S. Dollar Notes                      
TELUS Corporation notes                      
Fixed interest rate   2.80%     2.80%            
Issued   September 2016                  
Maturity   February 2027                  
Issue price per $1000 increment of debt | $ / NotesSeries   991.89     991.89            
Effective interest rate   2.89%     2.89%            
Principal face amount: Originally issued   $ 600                  
Long-term debt   $ 600                  
Redemption present value spread - Basis points   0.20%     0.20%            
Redemption present value spread - Cessation date   Nov. 16, 2026                  
2.80% U.S. Dollar Notes | Foreign exchange derivative                      
TELUS Corporation notes                      
Fixed interest rate   2.95%     2.95%            
Long-term debt         $ 792            
Fixed exchange rate   1.3205     1.3205            
3.70% U.S. Dollar Notes                      
TELUS Corporation notes                      
Fixed interest rate   3.70%     3.70%            
Issued   March 2017                  
Maturity   September 2027                  
Issue price per $1000 increment of debt | $ / NotesSeries   998.95     998.95            
Effective interest rate   3.71%     3.71%            
Principal face amount: Originally issued   $ 500                  
Long-term debt   $ 500                  
Redemption present value spread - Basis points   0.20%     0.20%            
Redemption present value spread - Cessation date   June 15, 2027                  
3.70% U.S. Dollar Notes | Foreign exchange derivative                      
TELUS Corporation notes                      
Fixed interest rate   3.41%     3.41%            
Long-term debt         $ 667            
Fixed exchange rate   1.3348     1.3348            
4.70% Notes, Series CW                      
TELUS Corporation notes                      
Fixed interest rate   4.70%     4.70%       4.70%    
Issued   Multiple 10                  
Maturity   March 2048                  
Issue price per $1000 increment of debt | $ / NotesSeries   998.06     998.06     1,014.11 990.65    
Effective interest rate   4.71%     4.71%     4.61% 4.76%    
Principal face amount: Originally issued         $ 325     $ 150 $ 325    
Long-term debt         $ 475            
Redemption present value spread - Basis points   0.585%     0.585%            
Redemption present value spread - Cessation date   Sept. 6, 2047                  
3.625% Notes, Series CX                      
TELUS Corporation notes                      
Fixed interest rate   3.625%     3.625%            
Issued   February 2018                  
Maturity   March 2028                  
Issue price per $1000 increment of debt | $ / NotesSeries   989.49     989.49            
Effective interest rate   3.75%     3.75%            
Principal face amount: Originally issued         $ 600            
Long-term debt         $ 600            
Redemption present value spread - Basis points   0.37%     0.37%            
Redemption present value spread - Cessation date   Dec. 1, 2027                  
4.60% U.S. Dollar Notes                      
TELUS Corporation notes                      
Fixed interest rate   4.60%     4.60%            
Issued   June 2018                  
Maturity   November 2048                  
Issue price per $1000 increment of debt | $ / NotesSeries   987.60     987.60            
Effective interest rate   4.68%     4.68%            
Principal face amount: Originally issued         $ 750            
Long-term debt         $ 750            
Redemption present value spread - Basis points   0.25%     0.25%            
Redemption present value spread - Cessation date   May 16, 2048                  
4.60% U.S. Dollar Notes | Foreign exchange derivative                      
TELUS Corporation notes                      
Fixed interest rate   4.41%     4.41%            
Long-term debt         $ 974            
Fixed exchange rate   1.2985     1.2985            
3.30% Notes, Series CY                      
TELUS Corporation notes                      
Fixed interest rate   3.30%     3.30%            
Issued   April 2019                  
Maturity   May 2029                  
Issue price per $1000 increment of debt | $ / NotesSeries   991.75     991.75            
Effective interest rate   3.40%     3.40%            
Principal face amount: Originally issued         $ 1            
Long-term debt         $ 1            
Redemption present value spread - Basis points   0.435%     0.435%            
Redemption present value spread - Cessation date   Feb. 2, 2029                  
4.30% U.S. Dollar Notes                      
TELUS Corporation notes                      
Fixed interest rate   4.30%     4.30%            
Issued   May 2019                  
Maturity   June 2049                  
Issue price per $1000 increment of debt | $ / NotesSeries   990.48     990.48            
Effective interest rate   4.36%     4.36%            
Principal face amount: Originally issued         $ 500            
Long-term debt         $ 500            
Redemption present value spread - Basis points   0.25%     0.25%            
Redemption present value spread - Cessation date   Dec. 15, 2048                  
4.30% U.S. Dollar Notes | Foreign exchange derivative                      
TELUS Corporation notes                      
Fixed interest rate   4.27%     4.27%            
Long-term debt         $ 672            
Fixed exchange rate   1.3435     1.3435            
2.75% Notes, Series CZ                      
TELUS Corporation notes                      
Fixed interest rate   2.75%     2.75%            
Issued   July 2019 13                  
Maturity   July 2026                  
Issue price per $1000 increment of debt | $ / NotesSeries   998.73     998.73            
Effective interest rate   2.77%     2.77%            
Principal face amount: Originally issued         $ 800            
Redemption present value spread - Basis points   0.33%     0.33%            
Redemption present value spread - Cessation date   May 8, 2026                  
Forecast | 5.05% Notes, Series CH                      
TELUS Corporation notes                      
Long-term debt prepayment premium $ 30                    
Prior to maturity date | Foreign exchange derivative                      
TELUS Corporation notes                      
Redemption price percentage   100.00%                  
Prior to maturity date | Foreign exchange derivative | Minimum                      
TELUS Corporation notes                      
Redemption period   30 days                  
Prior to maturity date | Foreign exchange derivative | Maximum                      
TELUS Corporation notes                      
Redemption period   60 days                  
Prior to maturity date | TELUS Corporation notes                      
TELUS Corporation notes                      
Redemption price percentage   100.00%                  
Prior to maturity date | TELUS Corporation notes | Minimum                      
TELUS Corporation notes                      
Redemption period   30 days                  
Prior to maturity date | TELUS Corporation notes | Maximum                      
TELUS Corporation notes                      
Redemption period   60 days                  
On or after the redemption cessation date | Foreign exchange derivative                      
TELUS Corporation notes                      
Redemption price percentage   100.00%                  
On or after the redemption cessation date | Foreign exchange derivative | Minimum                      
TELUS Corporation notes                      
Redemption period   30 days                  
On or after the redemption cessation date | Foreign exchange derivative | Maximum                      
TELUS Corporation notes                      
Redemption period   60 days                  
On or after the redemption cessation date | TELUS Corporation notes                      
TELUS Corporation notes                      
Redemption price percentage   100.00%                  
On or after the redemption cessation date | TELUS Corporation notes | Minimum                      
TELUS Corporation notes                      
Redemption period   30 days                  
On or after the redemption cessation date | TELUS Corporation notes | Maximum                      
TELUS Corporation notes                      
Redemption period   60 days