Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net Income	$ 97,000,000	$ 384,000,000
Qualifying hedges:
Changes in fair value, net of tax	0	3,000,000
Reclassification adjustment for amounts included in net income, net of tax	3,000,000	2,000,000
Pension and other post retirement benefit plans:
Reclassification adjustment for amounts included in net income, net of tax	1,000,000	1,000,000
Total other comprehensive income (loss)	4,000,000	6,000,000
Dividends on preferred and preference stock of subsidiaries	(16,000,000)	(16,000,000)
Comprehensive Income	85,000,000	374,000,000
Alabama Power [Member]
Net Income	151,000,000	136,000,000
Qualifying hedges:
Changes in fair value, net of tax	0	4,000,000
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	0	4,000,000
Dividends on preferred and preference stock of subsidiaries	(10,000,000)	(10,000,000)
Comprehensive Income	151,000,000	140,000,000
Georgia Power [Member]
Net Income	201,000,000	171,000,000
Qualifying hedges:
Reclassification adjustment for amounts included in net income, net of tax	1,000,000	1,000,000
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	1,000,000	1,000,000
Dividends on preferred and preference stock of subsidiaries	(4,000,000)	(4,000,000)
Comprehensive Income	202,000,000	172,000,000
Gulf Power [Member]
Net Income	23,343,000	22,217,000
Qualifying hedges:
Reclassification adjustment for amounts included in net income, net of tax	143,000	143,000
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	143,000	143,000
Dividends on preferred and preference stock of subsidiaries	(1,551,000)	(1,551,000)
Comprehensive Income	23,486,000	22,360,000
Mississippi Power [Member]
Net Income	(245,888,000)	25,688,000
Qualifying hedges:
Changes in fair value, net of tax	0	(478,000)
Reclassification adjustment for amounts included in net income, net of tax	212,000	26,000
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	212,000	(452,000)
Dividends on preferred and preference stock of subsidiaries	(433,000)	(433,000)
Comprehensive Income	(245,676,000)	25,236,000
Southern Power [Member]
Net Income	29,192,000	29,316,000
Qualifying hedges:
Changes in fair value, net of tax	0	(274,000)
Reclassification adjustment for amounts included in net income, net of tax	1,634,000	1,510,000
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	1,634,000	1,236,000
Comprehensive Income	$ 30,826,000	$ 30,552,000