Statements of Changes in Common Equity SYSTEM ENERGY RESOURCES, INC.) (Unaudited) (USD $) In Thousands	Total		Common Stock	Retained Earnings		System Energy	System Energy Common Stock	System Energy Retained Earnings
Beginning Balance at Dec. 31, 2009	$ 8,707,360		$ 2,548	$ 8,043,122		$ 829,942	$ 789,350	$ 40,592
Net income	1,036,999	[1]		1,021,951	[1]	63,354		65,354
Common stock	(453,683)					(94,200)		(94,200)
Ending Balance at Sep. 30, 2010	8,825,752		2,548	8,611,081		799,096	789,350	9,746
Beginning Balance at Jun. 30, 2010
Net income	497,901					22,299
Ending Balance at Sep. 30, 2010	8,825,752		2,548			799,096	789,350
Beginning Balance at Dec. 31, 2010	8,590,400		2,548	8,689,401		812,366	789,350	23,016
Net income	1,207,346	[1]		1,192,300	[1]	55,585		55,585
Common stock	(443,290)					(62,000)		(62,000)
Ending Balance at Sep. 30, 2011	9,059,362		2,548	9,439,000		805,951	789,350	16,601
Beginning Balance at Jun. 30, 2011
Net income	633,069					14,263
Ending Balance at Sep. 30, 2011	$ 9,059,362		$ 2,548			$ 805,951	$ 789,350

[1] Consolidated net income and preferred dividend requirements of subsidiaries for both 2010 and 2011 include $10.1 million of preferred dividends on subsidiaries' preferred stock without sinking fund that is not presented as equity.