Income Taxes Income Taxes (Tables)

3 Months Ended

Mar. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

The table below shows our consolidated income tax expense (benefit) and our effective tax rates for the periods indicated (in millions):

	Three Months Ended March 31,
	2018			2017
Income tax expense (benefit)	$	108		$	(61	)
Effective tax rate	(22		)%	52		%