Income Taxes (Tables)

6 Months Ended

Jun. 30, 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 three and six months ended June 30, 2017 and 2016:

	Three months ended   June 30,						Six months ended   June 30,
(in millions)	2017			2016			2017			2016
Income tax expense	$	28		$	28		$	40		$	33
Effective income tax rate	10		%	12		%	11		%	14		%