XML 247 R153.htm IDEA: XBRL DOCUMENT
v3.10.0.1

contingent liabilities (Details) $ in Millions | 12 Months Ended | 24 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2018 CAD ($) | Dec. 31, 2016 item | Dec. 31, 2018 CAD ($) item | Dec. 31, 2017 CAD ($) | Jan. 01, 2017 CAD ($)
Indemnification obligation |  |  |  |  |
Contingent liability amount |  |  |  |  |
Claims and lawsuits | 4G LTE Network patent infringement claim |  |  |  |  |
Claims and lawsuits |  |  |  |  |
Number of third-party patents involved in patent infringement claim | item |  | 3 |  |  |
Number of third-party patent infringement claims abandoned | item |  |  | 2 |  |
Claims and lawsuits | Area Code 867 blocking claim |  |  |  |  |
Claims and lawsuits |  |  |  |  |
Damages sought | 135 |  |  |  |
Indemnification obligations |  |  |  |  |
Indemnification obligation |  |  |  |  |
Contingent liability amount | $ 0 |  | $ 0 |  |

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