long-term debt (Details) $ in Millions, $ in Billions |
Jun. 30, 2026
CAD ($)
|
Jun. 30, 2026
USD ($)
|
Dec. 31, 2025
CAD ($)
|
Dec. 31, 2025
USD ($)
|
Jun. 30, 2025
CAD ($)
|
|---|---|---|---|---|---|
| Details of long-term debt | |||||
| Long-term debt excluding Lease liabilities | $ 27,256 | $ 27,225 | |||
| Lease liabilities | 2,975 | 3,314 | |||
| Long-term debt | 30,231 | 30,539 | $ 32,194 | ||
| Current | 3,802 | 3,102 | |||
| Non-current | 26,429 | 27,437 | |||
| TELUS Corporation senior notes | |||||
| Details of long-term debt | |||||
| Long-term debt excluding Lease liabilities | 17,247 | 18,191 | |||
| TELUS Corporation commercial paper | |||||
| Details of long-term debt | |||||
| Long-term debt excluding Lease liabilities | 2,093 | 952 | |||
| Long-term debt | 2,100 | $ 1.5 | 1,000 | $ 0.7 | |
| TELUS Corporation junior subordinated notes | |||||
| Details of long-term debt | |||||
| Long-term debt excluding Lease liabilities | 7,403 | 7,250 | |||
| Other | |||||
| Details of long-term debt | |||||
| Long-term debt excluding Lease liabilities | 34 | 295 | |||
| Other | |||||
| Details of long-term debt | |||||
| Long-term debt excluding Lease liabilities | $ 479 | $ 537 |