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Employee Equity and Profit Participation Program	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Employee Equity and Profit Participation Program	14. EMPLOYEE EQUITY AND PROFIT PARTICIPATION PROGRAM During the year ended December 31, 2017, a trust, which exists to make orderly purchases of the Company’s shares for employees for transfer to the Employee Equity and Profit Participation Program [“EEPPP”], borrowed up to $19 million [2016 - $10 million] from the Company to facilitate the purchase of Common Shares. At December 31, 2017, the trust’s indebtedness to Magna was $19 million [2016 - $10 million]. The Company nets the receivable from the trust with the Company’s accrued EEPPP payable in accrued wages and salaries.

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