Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-based Compensation, Stock Options, Activity [Table Text Block]

	Quarter Ended
	March 31,
	2019			2018
Total stock-based compensation expense (cost of sales, selling, general and administrative and other operating credits and charges, net)	$	2		$	2
Income tax provision related to stock-based compensation	$	(1	)	$	(2	)
Impact on cash flow due to taxes paid related to net share settlement of equity awards	$	4		$	6