ACQUISITIONS AND DISPOSITIONS - Other Disposition (Narrative) (Details) $ in Millions	1 Months Ended
Dec. 31, 2016 CAD ($)
Other miscellaneous non-core assets \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash proceeds	$ 286

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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