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Assets and Liabilities Held for Sale - Disclosure of Detailed Information about Assets and Liabilities Held for Sale (Detail) - CAD ($) $ in Millions | Sep. 30, 2020 | Dec. 31, 2019
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Disclosure of assets and liabilities classified as held for sale [line items] |  |
Assets held for sale |  | $ 83
Liabilities related to assets held for sale |  | 13
Disposal of property, plant and equipment [member] |  |
Disclosure of assets and liabilities classified as held for sale [line items] |  |
Assets held for sale |  | 77
Decommissioning liability [member] |  |
Disclosure of assets and liabilities classified as held for sale [line items] |  |
Liabilities related to assets held for sale |  | 7
Cash [member] |  |
Disclosure of assets and liabilities classified as held for sale [line items] |  |
Assets held for sale |  | 2
Accounts receivable [member] |  |
Disclosure of assets and liabilities classified as held for sale [line items] |  |
Assets held for sale |  | 4
Accounts payable and accrued liabilities [member] |  |
Disclosure of assets and liabilities classified as held for sale [line items] |  |
Liabilities related to assets held for sale |  | $ 6

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- Definition The amount of liabilities included in disposal groups classified as held for sale. [Refer: Liabilities; Disposal groups classified as held for sale [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 5 -IssueDate 2020-01-01 -Paragraph 38 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=5&code=ifrs-tx-2020-en-r&anchor=para_38&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 54 -Subparagraph p -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_54_p&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of non-current assets or disposal groups classified as held for sale or as held for distribution to owners. [Refer: Non-current assets or disposal groups classified as held for distribution to owners; Non-current assets or disposal groups classified as held for sale] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 54 -Subparagraph j -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_54_j&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition Line items representing assets and liabilities classified as held for sale. + References No definition available. + Details
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- Details
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- Details
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