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INVENTORY (Details) - CAD ($) | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Inventory Disclosure [Abstract] |  |  |
Natural gas | $ 776,000,000 | $ 695,000,000 |
Crude oil | 482,000,000 | 744,000,000 |
Other commodities | 81,000,000 | 89,000,000 |
Total | 1,339,000,000 | 1,528,000,000 |
Inventory adjustments | $ 93,000,000 | $ 0 | $ 0

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- Definition Carrying amount as of the balance sheet date of natural gas in storage, which is a mixture of gases (liquefied or otherwise), used for fuel and manufacturing purposes, which is ready for sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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