Stockholders' Equity 1 (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Sep. 30, 2013	Jun. 30, 2013
Cash dividends
Declaration date	Jul. 31, 2014	May 15, 2014	Aug. 01, 2013	May 09, 2013
Dividend per share (in dollars per share)	$ 0.25	$ 0.25	$ 0.25	$ 0.25
Record date	Aug. 21, 2014	May 29, 2014	Aug. 22, 2013	May 23, 2013
Total amount	$ 111	$ 111	$ 114	$ 114
Payment date	Sep. 09, 2014	Jun. 17, 2014	Sep. 10, 2013	Jun. 11, 2013