STATEMENTS OF CONSOLIDATED SHAREHOLDERS' EQUITY (USD $) In Millions, except Share data	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Preference Stock [Member]
Balance at Dec. 31, 2008			$ 0	$ 1,230	$ 410
Balance (in shares) at Dec. 31, 2008			1,000
Net Income	208				208
Balance at Dec. 31, 2009	1,848	0	0	1,230	618	0
Balance (in shares) at Dec. 31, 2009		0	1,000			0
Net Income	200				200
Balance at Dec. 31, 2010	2,048	0	0	1,230	818	0
Balance (in shares) at Dec. 31, 2010		0	1,000			0
Net Income	1,086				1,086
Balance at Dec. 31, 2011	$ 3,134	$ 0	$ 0	$ 1,230	$ 1,904	$ 0
Balance (in shares) at Dec. 31, 2011		0	1,000			0