Condensed Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Southern Company [Member]
Reclassification adjustment for amounts of qualifying hedges included in net income, tax	$ 0	$ 2,000,000	$ 2,000,000	$ 4,000,000
Reclassification adjustment for amounts of pension and other post retirement benefit plans included in net income, tax	1,000,000	1,000,000	1,000,000	2,000,000
Alabama Power [Member]
Reclassification adjustment for amounts of qualifying hedges included in net income, tax	0	0	0	0
Georgia Power [Member]
Reclassification adjustment for amounts of qualifying hedges included in net income, tax	0	1,000,000	0	1,000,000
Gulf Power [Member]
Reclassification adjustment for amounts of qualifying hedges included in net income, tax	59,000	90,000	117,000	180,000
Mississippi Power [Member]
Changes in fair value, tax	1,000	0	0	0
Reclassification adjustment for amounts of qualifying hedges included in net income, tax	132,000	132,000	263,000	263,000
Southern Power [Member]
Changes in fair value, tax	1,000	0	0	0
Reclassification adjustment for amounts of qualifying hedges included in net income, tax	$ 24,000	$ 1,052,000	$ 63,000	$ 2,097,000