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Finance Lease Receivables Narrative (Details) - CAD CAD in Millions		12 Months Ended
	Nov. 01, 2017	Dec. 31, 2017	Aug. 01, 2017
Disclosure of detailed information about business combination [line items]
Consideration received		CAD (10)
Solomon Power Station
Disclosure of detailed information about business combination [line items]
Total consideration transferred			CAD 335
Consideration received	CAD 325

X

- Definition

The fair value, at acquisition date, of the consideration transferred in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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-IssueDate 2017-01-01
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-Subparagraph f
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-URIDate 2017-03-09

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X

- Definition

The amount of consideration paid or received in respect of both obtaining and losing control of subsidiaries or other businesses. [Refer: Subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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-IssueDate 2017-01-01
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-URIDate 2017-03-09

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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.

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- Details

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