Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2019

Share-based Payment Arrangement [Abstract]

Share-based Payment Arrangement, Option, Activity [Table Text Block]

	Quarter Ended				Nine Months Ended
	September 30,				September 30,
	2019		2018		2019			2018
Total stock-based compensation expense (cost of sales, selling, general and administrative and other operating credits and charges, net)	$	2	$	2	$	6		$	7
Income tax provision related to stock-based compensation	—		—		(1		)	(3		)
Impact on cash flow due to taxes paid related to net share settlement of equity awards	2		2		5			9