Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net Income	$ 368,000,000	$ 97,000,000
Qualifying hedges:
Reclassification adjustment for amounts included in net income, net of tax	1,000,000	3,000,000
Pension and other post retirement benefit plans:
Reclassification adjustment for amounts included in net income, net of tax	1,000,000	1,000,000
Total other comprehensive income (loss)	2,000,000	4,000,000
Less: Comprehensive income attributable to noncontrolling interest	17,000,000	16,000,000
Comprehensive Income	353,000,000	85,000,000
Alabama Power [Member]
Net Income	197,000,000	151,000,000
Qualifying hedges:
Changes in fair value, net of tax	0	0
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	0	0
Comprehensive Income	197,000,000	151,000,000
Georgia Power [Member]
Net Income	270,000,000	201,000,000
Qualifying hedges:
Reclassification adjustment for amounts included in net income, net of tax	0	1,000,000
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	0	1,000,000
Comprehensive Income	270,000,000	202,000,000
Gulf Power [Member]
Net Income	38,994,000	23,343,000
Qualifying hedges:
Reclassification adjustment for amounts included in net income, net of tax	93,000	143,000
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	93,000	143,000
Comprehensive Income	39,087,000	23,486,000
Mississippi Power [Member]
Net Income	(171,615,000)	(245,888,000)
Qualifying hedges:
Changes in fair value, net of tax	(1,000)	0
Reclassification adjustment for amounts included in net income, net of tax	212,000	212,000
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	211,000	212,000
Comprehensive Income	(171,404,000)	(245,676,000)
Southern Power [Member]
Net Income	34,287,000	29,192,000
Qualifying hedges:
Changes in fair value, net of tax	(2,000)	0
Reclassification adjustment for amounts included in net income, net of tax	89,000	1,634,000
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	87,000	1,634,000
Less: Comprehensive income attributable to noncontrolling interest	816,000	0
Comprehensive Income	$ 33,558,000	$ 30,826,000