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Net Other Operating (Income) Losses Analysis of income and expenses (Details) - CAD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
Jul. 20, 2018 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Analysis of income and expenses [Line Items] |  |  |  |
Alberta Off-Coal Agreement | $ (40) | $ (40) | $ (40) | $ 0
Termination of the Sundance B and C PPAs |  | (157) | 0 | 0
Mississauga cogeneration facility NUG Contract |  | 0 | (9) | (191)
Insurance recoveries |  | (7) | 0 | (3)
Restructuring provision |  | 0 | 0 | 1
Net other operating expense (income) |  | $ (204) | $ (49) | $ (193)

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- Definition The amount of expense relating to restructuring. Restructuring is a programme that is planned and controlled by management and materially changes either the scope of a business undertaken by an entity or the manner in which that business is conducted. Such programmes include: (a) the sale or termination of a line of business; (b) closure of business locations in a country or region or the relocation of activities from one country or region to another; (c) changes in management structure; and (d) fundamental reorganisations that have a material effect on the nature and focus of the entity's operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 98 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_98_b&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The gains (losses) on disposals of investments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 98 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_98_d&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The amount of income recognised from the reimbursement of a claim as a result of the occurrence of an insured event covered by an insurance contract. [Refer: Types of insurance contracts [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_112_c&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The amount of operating income (expense) that the entity does not separately disclose in the same statement or note. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_85&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition [Line Items] for Analysis of income and expenses [Table] + References No definition available. + Details
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- Definition Gains (Losses) on Contract Agreement + References No definition available. + Details
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- Definition Gains (Losses) on Contract Restructuring + References No definition available. + Details
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