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INVENTORY

12 Months Ended

Dec. 31, 2017

Inventories [Abstract]

INVENTORY

INVENTORY

		2017				2016
Product inventory		$	285			$	263
Materials and supplies		609				426
		$	894			$	689

The Company recorded a write-down of its product inventory of $33 million from cost to net realizable value as at December 31, 2017 (2016 - $73 million).

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Inventories [Abstract]

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The entire disclosure for inventories.

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