Income Taxes (Tables)

3 Months Ended

Mar. 31, 2017

Income Tax Disclosure [Abstract]

Schedule of effective income tax rate reconciliation

The following table presents the Company's income tax expense and effective income tax rate for the periods presented:

	Three months ended   March 31,
(in millions)	2017			2016
Income tax expense	$	12		$	5
Effective income tax rate	13		%	(500		)%