Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Consolidated Net Income	$ 993,000,000		$ 933,000,000		$ 2,016,000,000		$ 1,991,000,000
Net Income After Dividends on Preferred and Preference Stock	976,000,000	[1]	916,000,000	[1]	1,967,000,000	[1]	1,942,000,000	[1]
Qualifying hedges:
Changes in fair value, net of tax	(4,000,000)		(17,000,000)		(11,000,000)		(14,000,000)
Reclassification adjustment for amounts included in net income, net of tax	3,000,000		3,000,000		7,000,000		6,000,000
Marketable securities:
Change in fair value, net of tax	0		(5,000,000)		0		(3,000,000)
Pension and other post retirement benefit plans:
Reclassification adjustment for amounts included in net income, net of tax	1,000,000		0		3,000,000		0
Total other comprehensive income (loss)	0		(19,000,000)		(1,000,000)		(11,000,000)
Dividends on preferred and preference stock of subsidiaries	(17,000,000)		(17,000,000)		(49,000,000)		(49,000,000)
Comprehensive Income	976,000,000		897,000,000		1,966,000,000		1,931,000,000
Alabama Power [Member]
Consolidated Net Income	290,000,000		274,000,000		621,000,000		636,000,000
Net Income After Dividends on Preferred and Preference Stock	280,000,000		264,000,000		591,000,000		606,000,000
Qualifying hedges:
Changes in fair value, net of tax	(2,000,000)		(8,000,000)		(9,000,000)		(5,000,000)
Reclassification adjustment for amounts included in net income, net of tax	0		0		0		(2,000,000)
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	(2,000,000)		(8,000,000)		(9,000,000)		(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	278,000,000		256,000,000		582,000,000		599,000,000
Georgia Power [Member]
Consolidated Net Income	529,000,000		524,000,000		1,000,000,000		1,048,000,000
Net Income After Dividends on Preferred and Preference Stock	525,000,000		520,000,000		987,000,000		1,035,000,000
Qualifying hedges:
Reclassification adjustment for amounts included in net income, net of tax	1,000,000		1,000,000		2,000,000		2,000,000
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	1,000,000		1,000,000		2,000,000		2,000,000
Dividends on preferred and preference stock of subsidiaries	(4,000,000)		(4,000,000)		(13,000,000)		(13,000,000)
Comprehensive Income	526,000,000		521,000,000		989,000,000		1,037,000,000
Gulf Power [Member]
Consolidated Net Income	49,305,000		42,768,000		108,035,000		90,912,000
Net Income After Dividends on Preferred and Preference Stock	47,754,000		41,217,000		103,383,000		86,260,000
Qualifying hedges:
Reclassification adjustment for amounts included in net income, net of tax	143,000		143,000		429,000		430,000
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	143,000		143,000		429,000		430,000
Dividends on preferred and preference stock of subsidiaries	(1,551,000)		(1,551,000)		(4,652,000)		(4,652,000)
Comprehensive Income	47,897,000		41,360,000		103,812,000		86,690,000
Mississippi Power [Member]
Consolidated Net Income	55,058,000		38,452,000		116,206,000		79,218,000
Net Income After Dividends on Preferred and Preference Stock	54,625,000		38,019,000		114,907,000		77,919,000
Qualifying hedges:
Changes in fair value, net of tax	1,000		(9,090,000)		(477,000)		(9,079,000)
Reclassification adjustment for amounts included in net income, net of tax	212,000		0		450,000		0
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	213,000		(9,090,000)		(27,000)		(9,079,000)
Dividends on preferred and preference stock of subsidiaries	(433,000)		(433,000)		(1,299,000)		(1,299,000)
Comprehensive Income	54,838,000		28,929,000		114,880,000		68,840,000
Southern Power [Member]
Consolidated Net Income	68,376,000		56,071,000		144,294,000		138,415,000
Qualifying hedges:
Changes in fair value, net of tax	338,000		(206,000)		152,000		402,000
Reclassification adjustment for amounts included in net income, net of tax	1,569,000		1,685,000		4,608,000		4,946,000
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	1,907,000		1,479,000		4,760,000		5,348,000
Comprehensive Income	$ 70,283,000		$ 57,550,000		$ 149,054,000		$ 143,763,000

[1] After dividends on preferred and preference stock of subsidiaries