Consolidated Statements of Comprehensive Income (unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ (109)	$ 192	$ (131)	$ 392
Net Change in Mutual Fund Investment	0	0	(11)	0
Less Tax Benefit	0	0	3	0
Net Change in Pension and Other	24	5	25	10
Less Tax Benefit	(10)	(1)	(10)	(4)
Other Comprehensive Income	14	4	7	6
Comprehensive Income (Loss)	$ (95)	$ 196	$ (124)	$ 398