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REMUNERATION OF DIRECTORS AND SENIOR MANAGEMENT (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Non-management directors |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Fees earned and salary | $ 3 | $ 2 | $ 2
Senior management |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Fees earned and salary | 3 | 3 | 3
Common stock option based awards | 10 | 9 | 7
Annual incentive plans | 5 | 5 | 2
Long-term incentive plans | 17 | 15 | 6
Total | $ 35 | $ 32 | $ 18

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