Assets Held for Sale and Discontinued Operations - Summary of Cash Flows from Discontinued Operations (Detail) - CAD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Cash Flows From Discontinued Operations [Abstract]
Cash From (Used in) Operating Activities	$ 27	$ 137	$ 38	$ 270
Cash From (Used in) Investing Activities	(37)	(50)	414	(138)
Net Cash Flow	$ (10)	$ 87	$ 452	$ 132

Cash flows from discontinued operations.

No definition available.

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- Definition

The cash flows from (used in) the entity's investing activities, related to discontinued operations. [Refer: Discontinued operations [member]; Cash flows from (used in) investing activities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 5
-IssueDate 2017-01-01
-Paragraph 33
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=5&date=2017-03-01&anchor=para_33_c&doctype=Standard
-URIDate 2017-03-09

+ Details

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- Definition

The cash flows from (used in) the entity's operating activities, related to discontinued operations. [Refer: Discontinued operations [member]; Cash flows from (used in) operating activities]

+ References

+ Details

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- Definition

The increase (decrease) in cash and cash equivalents from discontinued operations. [Refer: Cash and cash equivalents; Discontinued operations [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 5
-IssueDate 2017-01-01
-Paragraph 33
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=5&date=2017-03-01&anchor=para_33_c&doctype=Standard
-URIDate 2017-03-09

+ Details

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