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Other Current Liabilities | 12 Months Ended
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Dec. 31, 2017
Other Current Liabilities [Abstract] |
OTHER CURRENT LIABILITIES | 24. OTHER CURRENT LIABILITIES
Other current liabilities consisted of the following: |  |  |  |
As at | December 31 | December 31
millions of Canadian dollars |  | 2017 |  | 2016
Accrued charges | $ | 134 | $ | 137
Accrued interest on long-term debt |  | 78 |  | 96
Income tax payable |  | 1 |  | 19
Accrued pension liability |  | 41 |  | 58
Sales and other taxes payable |  | 11 |  | 16
Emission credits obligations (1) |  | 21 |  | 10
Other |  | 64 |  | 22
| $ | 350 | $ | 358
(1) Throughout the three-year compliance period associated with the Regional Greenhouse Gas Initiative for carbon dioxide emissions, an obligation is recognized as gas is burned, measured at the cost to acquire credits for the related emissions. Emission credits are capitalized to inventory (note 13) when purchased and subsequently applied against the emission liabilities at the end of each compliance period.

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- Definition The entire disclosure for other liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20,24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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