long-term debt (Details) $ in Millions, $ in Millions |
Jun. 30, 2019
USD ($)
|
Jun. 30, 2019
CAD ($)
|
Jan. 01, 2019
CAD ($)
|
Dec. 31, 2018
CAD ($)
|
Jun. 30, 2018
CAD ($)
|
|---|---|---|---|---|---|
| Details of long-term debt | |||||
| Long-term debt excluding Lease liabilities | $ 15,025 | $ 13,999 | |||
| Lease liabilities | 1,554 | 102 | |||
| Long-term debt | 16,579 | 14,101 | $ 14,145 | ||
| Current liabilities | 1,564 | $ 1,016 | 836 | ||
| Non-current | 15,015 | $ 14,466 | 13,265 | ||
| TELUS Corporation notes | |||||
| Details of long-term debt | |||||
| Long-term debt excluding Lease liabilities | 13,715 | 12,186 | |||
| TELUS Corporation commercial paper | |||||
| Details of long-term debt | |||||
| Long-term debt excluding Lease liabilities | 293 | 774 | |||
| Long-term debt | $ 224 | 293 | 774 | ||
| TELUS Communications Inc. debentures | |||||
| Details of long-term debt | |||||
| Long-term debt excluding Lease liabilities | 621 | 620 | |||
| TELUS International (Cda) Inc. credit facility | |||||
| Details of long-term debt | |||||
| Long-term debt excluding Lease liabilities | $ 396 | $ 419 |