XML 109 R15.htm IDEA: XBRL DOCUMENT
v3.10.0.1

financing costs | 12 Months Ended
--- | ---
Dec. 31, 2018
financing costs |
financing costs | 9 financing costs
Years ended December 31 (millions) |  | Note |  | 2018 |  | 2017
Interest expense |  |  |  |  |  |  |  |
Interest on long-term debt |  |  |  | $ | 598 |  | $ | 561
Interest on short-term borrowings and other |  |  |  |  | 6 |  |  | 5
Interest accretion on provisions |  | 25 |  |  | 21 |  |  | 13
Long-term debt prepayment premium |  | 26(b) |  |  | 34 |  |  | —
|  |  |  |  | 659 |  |  | 579
Employee defined benefit plans net interest |  | 15(b), (g) |  |  | 17 |  |  | 6
Foreign exchange |  |  |  |  | (6) |  |  | (5)
|  |  |  |  | 670 |  |  | 580
Interest income |  |  |  |  | (9) |  |  | (7)
|  |  |  | $ | 661 |  | $ | 573

X
- Definition The entire disclosure for financing costs. + References No definition available. + Details
Name: | tu_DisclosureOfFinancingCostsTextBlock
Namespace Prefix: | tu_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition n/a + References No definition available. + Details
Name: | tu_FinancingCostsAbstract
Namespace Prefix: | tu_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration