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PROVISIONS (Details) - CAD CAD in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Reconciliation of changes in other provisions [abstract] |  |
December 31, 2016 | CAD 167 |
Additions | 1 |
Adjustments to existing provisions | 4 |
Reversals | (20) |
Amounts used | (113) |
December 31, 2017 | 39 | CAD 167
Current | 4 | 134
Long-term | 35 | 33
(Recovery) loss on wind-down of shomi | CAD (20) | 140
Expected settlement term of legal claims | 5 years |
Decommissioning Liabilities |  |
Reconciliation of changes in other provisions [abstract] |  |
December 31, 2016 | CAD 35 |
Additions | 0 |
Adjustments to existing provisions | 4 |
Reversals | 0 |
Amounts used | (4) |
December 31, 2017 | 35 | 35
Current | 2 |
Long-term | 33 |
shomi |  |
Reconciliation of changes in other provisions [abstract] |  |
December 31, 2016 | 112 |
Additions | 0 |
Adjustments to existing provisions | 0 |
Reversals | (20) |
Amounts used | (92) |
December 31, 2017 | 0 | 112
Current | 0 |
Long-term | 0 |
Other |  |
Reconciliation of changes in other provisions [abstract] |  |
December 31, 2016 | 20 |
Additions | 1 |
Adjustments to existing provisions | 0 |
Reversals | 0 |
Amounts used | (17) |
December 31, 2017 | 4 | CAD 20
Current | 2 |
Long-term | CAD 2 |

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- Definition Adjustments for gain (loss) on disposals investments in subsidiaries, joint ventures and associates to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Associates [member]; Joint ventures [member]; Subsidiaries [member]; Investments in subsidiaries, joint ventures and associates; Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2017-01-01 -Paragraph 20 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_20&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The increase in existing other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2017-01-01 -Paragraph 84 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2017-03-01&anchor=para_84_b&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The amount of non-current provisions other than provisions for employee benefits. [Refer: Non-current provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 78 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_78_d&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The amount of provisions other than provisions for employee benefits. [Refer: Provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2017-01-01 -Paragraph 84 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2017-03-01&anchor=para_84_a&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 78 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_78_d&doctype=Standard -URIDate 2017-03-09 + 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 2017-01-01 -Paragraph 84 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2017-03-01&anchor=para_84_c&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The amount reversed for unused other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2017-01-01 -Paragraph 84 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2017-03-01&anchor=para_84_d&doctype=Standard -URIDate 2017-03-09 + Details
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