Subsequent Event (Details) - June 2015 Repurchase Program [Member] - USD ($) shares in Thousands, $ in Millions	1 Months Ended	6 Months Ended
	Sep. 02, 2015	Aug. 01, 2015
Subsequent Event [Line Items]
Shares Repurchased		624
Amount Repurchased		$ 52
Subsequent Event [Member]
Subsequent Event [Line Items]
Shares Repurchased	700
Amount Repurchased	$ 61