Other Income, Net (Tables)

12 Months Ended

Dec. 31, 2017

Other Income and Expenses [Abstract]

Interest and Other Income

Other income (expense), net included:

	Year Ended December 31,
	2017			2016			2015
	(in millions)
Interest income	$	7		$	1		$	5
Loss on extinguishment of debt	—			(73		)	(58		)
Components of net periodic benefit cost other than service cost	(32		)	(18		)	(26		)
Reserve for Unsecured Creditors litigation	(10		)	(300		)	—
Costs associated with acquisitions	(8		)	—			(40		)
Contingent consideration liability fair value adjustment	14			(3		)	7
Other, net	8			9			(2		)
Other expense, net	$	(21	)	$	(384	)	$	(114	)