Consolidated Statements of Comprehensive Income (unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net Income	$ 419	$ 205	$ 811	$ 843
Net Change in Pension and Other	6	4	16	15
Less Tax Benefit	(2)	(1)	(6)	(5)
Other Comprehensive Income	4	3	10	10
Comprehensive Income	$ 423	$ 208	$ 821	$ 853