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DECOMMISSIONING LIABILITY (Tables)

12 Months Ended

Dec. 31, 2018

Statements Line Items

Disclosure of detailed information about decommissioning liability [Table Text Block]

		Canadian			United States
		Oil and Gas			Oil and Gas
		Properties ⁽¹⁾			Properties ⁽¹⁾			Total
		$			$			$
Balance at January 1, 2017		3,636			140			3,776
Change in estimated future cash flows		146			(3	)		143
Actual costs incurred and other		(3	)		(8	)		(11	)
Unwinding of discount		60			3			63
Balance at December 31, 2017		3,839			132			3,971
Additions		60			-			60
Change in estimated future cash flows		(296	)		(3	)		(299	)
Actual costs incurred and other		(15	)		12			(3	)
Unwinding of discount		76			3			79
Balance at December 31, 2018		3,664			144			3,808

⁽¹⁾relates to property and equipment (note 5)

Disclosure of detailed information about present value of the decommissioning liability [Table Text Block]

	Canadian Oil	United States
	and Gas	Oil and Gas
	Properties	Properties
As at December 31, 2018:
Discount rate	1.94%	2.15%
Inflation rate	2.00%	2.00%

As at December 31, 2017:
Discount rate	1.94%	2.20%
Inflation rate	2.00%	2.00%