v3.19.2

financial instruments - Contract assets (Details) - CAD ($) $ in Millions | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | --- | --- | --- | --- | ---
Credit risk |  |  |  |  |  |
Contract assets | $ 1,441 | $ 0 | $ 1,475 | $ 1,272 | $ 1,279 | $ 0
Cost/Gross amount |  |  |  |  |  |
Credit risk |  |  |  |  |  |
Contract assets | 1,519 |  | 1,549 |  |  |
Allowance for doubtful accounts |  |  |  |  |  |
Credit risk |  |  |  |  |  |
Contract assets | (78) |  | (74) |  |  |
The twelve month period ending one year hence |  |  |  |  |  |
Credit risk |  |  |  |  |  |
Contract assets | 1,019 |  | 1,017 | 907 |  |
The twelve month period ending one year hence | Cost/Gross amount |  |  |  |  |  |
Credit risk |  |  |  |  |  |
Contract assets | 1,073 |  | 1,068 |  |  |
The twelve month period ending one year hence | Allowance for doubtful accounts |  |  |  |  |  |
Credit risk |  |  |  |  |  |
Contract assets | (54) |  | (51) |  |  |
The twelve month period ending two years hence |  |  |  |  |  |
Credit risk |  |  |  |  |  |
Contract assets | 407 |  | 444 | 354 |  |
The twelve month period ending two years hence | Cost/Gross amount |  |  |  |  |  |
Credit risk |  |  |  |  |  |
Contract assets | 430 |  | 466 |  |  |
The twelve month period ending two years hence | Allowance for doubtful accounts |  |  |  |  |  |
Credit risk |  |  |  |  |  |
Contract assets | (23) |  | (22) |  |  |
Thereafter |  |  |  |  |  |
Credit risk |  |  |  |  |  |
Contract assets | 15 |  | 14 | $ 11 |  |
Thereafter | Cost/Gross amount |  |  |  |  |  |
Credit risk |  |  |  |  |  |
Contract assets | 16 |  | 15 |  |  |
Thereafter | Allowance for doubtful accounts |  |  |  |  |  |
Credit risk |  |  |  |  |  |
Contract assets | $ (1) |  | $ (1) |  |  |

X
- Definition The amount of an entity’s right to consideration in exchange for goods or services that the entity has transferred to a customer, when that right is conditioned on something other than the passage of time (for example, the entity’s future performance). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2018-01-01 -Paragraph 105 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=15&date=2018-03-01&anchor=para_105&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2018-01-01 -Paragraph 116 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=15&date=2018-03-01&anchor=para_116_a&doctype=Standard -URIDate 2018-03-16 + Details
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