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Provisions and Other Liabilities - Summary of Movements in Provisions (Detail) $ in Millions | 12 Months Ended
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Dec. 31, 2018 CAD ($)
Disclosure of other provisions [line items] |
Provisions, beginning balance | $ 2,038
Settled during the year | (105)
Change in discount rate | (409)
Change in amount and timing of cash flows | 129
Accretion | 103
Other | (2)
Changes in foreign exchange rates | 54
Provisions, ending balance | 1,808
Less current portion of provisions (Note 18) | (155)
Long-term provisions | 1,653
Decommissioning and Restoration Provisions [member] |
Disclosure of other provisions [line items] |
Provisions, beginning balance | 1,844
Settled during the year | (76)
Change in discount rate | (409)
Change in amount and timing of cash flows | 111
Accretion | 101
Other | (2)
Changes in foreign exchange rates | 45
Provisions, ending balance | 1,614
Less current portion of provisions (Note 18) | (91)
Long-term provisions | 1,523
Other [member] |
Disclosure of other provisions [line items] |
Provisions, beginning balance | 194
Settled during the year | (29)
Change in amount and timing of cash flows | 18
Accretion | 2
Changes in foreign exchange rates | 9
Provisions, ending balance | 194
Less current portion of provisions (Note 18) | (64)
Long-term provisions | $ 130

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- Definition The amount of additional other provisions made. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2018-01-01 -Paragraph 84 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2018-03-01&anchor=para_84_b&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of current provisions. [Refer: Provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 54 -Subparagraph l -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_54_l&doctype=Standard -URIDate 2018-03-16 + Details
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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 increase (decrease) in other provisions resulting from a change in discount rate. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2018-01-01 -Paragraph 84 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2018-03-01&anchor=para_84_e&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The increase (decrease) in other provisions resulting from foreign currency exchange rate changes on provisions measured in a currency different from the entity's presentation currency. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 37 -IssueDate 2018-01-01 -Paragraph 84 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2018-03-01&anchor=para_84&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of non-current provisions. [Refer: Provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 54 -Subparagraph l -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_54_l&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount used (ie incurrent and charged against the provision) for other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2018-01-01 -Paragraph 84 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2018-03-01&anchor=para_84_c&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition Increase (decrease) through other change, other provisions. + References No definition available. + Details
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- Details
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