Consolidated Statements of Comprehensive Income (unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Income [Abstract]
Net Income	$ 192	$ 377	$ 392	$ 639
Net Change in Pension and Other	5	5	10	11
Less Tax Benefit	(1)	(2)	(4)	(4)
Other Comprehensive Income	4	3	6	7
Comprehensive Income	$ 196	$ 380	$ 398	$ 646