Receivables (Tables)

3 Months Ended

Mar. 31, 2019

Receivables [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

Receivables consist of the following:

	March 31, 2019			December 31, 2018
Trade receivables	$	132		$	87
Income tax receivable	18			16
Other receivables	18			25
Allowance for doubtful accounts	(2		)	(1		)
Total	$	166		$	128