Changes in Accumulated Other Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2017

Dec. 31, 2016

Statement of Comprehensive Income [Abstract]

Summary of Changes in Accumulated Other Comprehensive Income [Table Text Block]

Following is a summary of changes in “Accumulated other comprehensive income” for the years ended December 31, 2017 and 2016:

	Defined Benefit Pension and Postretirement Plans			Foreign Currency Translation Adjustments			Total
Balance at December 31, 2015	$	—		$	(92	)	$	(92	)
Other comprehensive (loss) income before reclassifications, net of tax	20			(1		)	19
Amounts reclassified from Accumulated other comprehensive income, net of tax (1)	(3		)	—			(3		)
Net other comprehensive loss	17			(1		)	16
Balance at December 31, 2016	$	17		$	(93	)	$	(76	)
Other comprehensive (income) loss before reclassifications, net of tax	18			45			63
Amounts reclassified from Accumulated other comprehensive income (loss), net of tax (1)	(5		)	—			(5		)
Net other comprehensive income (loss)	13			45			58
Balance at December 31, 2017	$	30		$	(48	)	$	(18	)

Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]

	Amount Reclassified From Accumulated Other Comprehensive Income
	Year Ended December 31,
Amortization of defined benefit pension and other postretirement benefit items:	2017		2016			2015		Location of Reclassified Amount in Income
Prior service costs	$	5	$	4		$	—	(1)
Total before income tax	5		4			—
Income tax benefit	—		(1		)	—		Income tax expense
Total	$	5	$	3		$	—