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CHANGES IN ACCOUNTING POLICIES (Details) - CAD CAD in Millions | Dec. 31, 2015 | Dec. 31, 2014
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CHANGES IN ACCOUNTING POLICIES |  |
Deferred amounts and other assets | CAD 3,160 | CAD 3,092
Long-term debt | 39,391 | 33,307
Accounting Standards Update 2015-03 | Adjustments |  |
CHANGES IN ACCOUNTING POLICIES |  |
Deferred amounts and other assets | (149) | (116)
Long-term debt | CAD (149) | CAD (116)

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