Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Consolidated Net Income	$ 933,000,000	$ 834,000,000	$ 1,991,000,000	$ 1,871,000,000
Net Income After Dividends on Preferred and Preference Stock	916,000,000	817,000,000	1,942,000,000	1,822,000,000
Qualifying hedges:
Changes in fair value, net of tax	(17,000,000)	2,000,000	(14,000,000)	1,000,000
Reclassification adjustment for amounts included in net income, net of tax	3,000,000	3,000,000	6,000,000	14,000,000
Marketable securities:
Change in fair value, net of tax	(5,000,000)	(3,000,000)	(3,000,000)
Pension and other post retirement benefit plans:
Reclassification adjustment for amounts included in net income, net of tax				1,000,000
Total other comprehensive income (loss)	(19,000,000)	2,000,000	(11,000,000)	16,000,000
Dividends on preferred and preference stock of subsidiaries	(17,000,000)	(17,000,000)	(49,000,000)	(49,000,000)
Comprehensive Income	897,000,000	819,000,000	1,931,000,000	1,838,000,000
Alabama Power [Member]
Consolidated Net Income	274,000,000	269,000,000	636,000,000	682,000,000
Net Income After Dividends on Preferred and Preference Stock	264,000,000	259,000,000	606,000,000	652,000,000
Qualifying hedges:
Changes in fair value, net of tax	(8,000,000)		(5,000,000)
Reclassification adjustment for amounts included in net income, net of tax			(2,000,000)
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	(8,000,000)		(7,000,000)
Dividends on preferred and preference stock of subsidiaries	(10,000,000)	(10,000,000)	(30,000,000)	(30,000,000)
Comprehensive Income	256,000,000	259,000,000	599,000,000	652,000,000
Georgia Power [Member]
Consolidated Net Income	524,000,000	424,000,000	1,048,000,000	909,000,000
Net Income After Dividends on Preferred and Preference Stock	520,000,000	420,000,000	1,035,000,000	896,000,000
Qualifying hedges:
Reclassification adjustment for amounts included in net income, net of tax	1,000,000	2,000,000	2,000,000	8,000,000
Pension and other post retirement benefit plans:
Dividends on preferred and preference stock of subsidiaries	(4,000,000)	(4,000,000)	(13,000,000)	(13,000,000)
Comprehensive Income	521,000,000	422,000,000	1,037,000,000	904,000,000
Gulf Power [Member]
Consolidated Net Income	42,768,000	44,458,000	90,912,000	105,176,000
Net Income After Dividends on Preferred and Preference Stock	41,217,000	42,907,000	86,260,000	100,524,000
Qualifying hedges:
Changes in fair value, net of tax				(863,000)
Reclassification adjustment for amounts included in net income, net of tax	143,000	143,000	430,000	455,000
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	143,000	143,000	430,000	(408,000)
Dividends on preferred and preference stock of subsidiaries	(1,551,000)	(1,551,000)	(4,652,000)	(4,652,000)
Comprehensive Income	41,360,000	43,050,000	86,690,000	100,116,000
Mississippi Power [Member]
Consolidated Net Income	38,452,000	34,026,000	79,218,000	65,364,000
Net Income After Dividends on Preferred and Preference Stock	38,019,000	33,593,000	77,919,000	64,065,000
Qualifying hedges:
Changes in fair value, net of tax	(9,090,000)	7,000	(9,079,000)	13,000
Pension and other post retirement benefit plans:
Dividends on preferred and preference stock of subsidiaries	(433,000)	(433,000)	(1,299,000)	(1,299,000)
Comprehensive Income	28,929,000	33,600,000	68,840,000	64,078,000
Southern Power [Member]
Consolidated Net Income	56,071,000	62,576,000	138,415,000	108,867,000
Qualifying hedges:
Changes in fair value, net of tax	(206,000)	1,759,000	402,000	2,400,000
Reclassification adjustment for amounts included in net income, net of tax	1,685,000	1,590,000	4,946,000	4,703,000
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	1,479,000	3,349,000	5,348,000	7,103,000
Comprehensive Income	$ 57,550,000	$ 65,925,000	$ 143,763,000	$ 115,970,000