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Other Current Liabilities (Details) - CAD ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Other Current Liabilities [Abstract] |  |
Accrued Liabilities, Current | $ 134 | $ 137
Accrued interest on long-term debt | 78 | 96
Income taxes payable | 1 | 19
Pension and Other Postretirement Defined Benefit Plans, Current Liabilities | 41 | 58
Sales and Excise Tax Payable, Current | 11 | 16
Deferred Emission Credits, Current | 21 | 10
Other Sundry Liabilities, Current | 64 | 22
Other Liabilities, Current, Total | $ 350 | $ 358

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- Definition Carrying value as of the balance sheet date of accrued interest related to long term debt which are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. These are due within one year or within the normal operating cycle if longer. + References No definition available. + Details
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