v3.19.2

revenue from contracts with customers - Revenues (Details) - Minimum - CAD ($) $ in Millions | Jun. 30, 2019 | Dec. 31, 2018
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Disclosure of transaction price allocated to remaining performance obligations |  |
Transaction price allocated to remaining performance obligations | $ 3,307 | $ 3,263
The twelve month period ending one year hence |  |
Disclosure of transaction price allocated to remaining performance obligations |  |
Transaction price allocated to remaining performance obligations | 2,390 | 2,306
The twelve month period ending two years hence |  |
Disclosure of transaction price allocated to remaining performance obligations |  |
Transaction price allocated to remaining performance obligations | 888 | 933
Thereafter |  |
Disclosure of transaction price allocated to remaining performance obligations |  |
Transaction price allocated to remaining performance obligations | $ 29 | $ 24

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The amount of the transaction price allocated to the performance obligations that are unsatisfied (or partially unsatisfied) as of the end of the reporting period. The transaction price is the amount of consideration to which an entity expects to be entitled in exchange for transferring promised goods or services to a customer, excluding amounts collected on behalf of third parties (for example, some sales taxes). [Refer: Performance obligations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2018-01-01 -Paragraph 120 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=15&date=2018-03-01&anchor=para_120_a&doctype=Standard -URIDate 2018-03-16 + Details
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