Financing (Tables)

3 Months Ended

Mar. 31, 2013

Debt Disclosure [Abstract]

Credit arrangements by company

The following table outlines the committed credit arrangements by company as of March 31, 2013: 

	Expires(a)												Executable Term Loans				Due Within  One Year
Company	2013		2014		2016		2018		Total		Unused		One Year		Two Years		Term Out		No Term Out
	(in millions)								(in millions)				(in millions)				(in millions)
Southern Company	$	—	$	—	$	—	$	1,000	$	1,000	$	1,000	$	—	$	—	$	—	$	—
Alabama Power	156		151		—		1,000		1,307		1,307		56		—		56		102
Georgia Power	—		—		150		1,600		1,750		1,740		—		—		—		—
Gulf Power	45		60		165		—		270		270		45		—		45		30
Mississippi Power	110		25		165		—		300		300		25		40		65		70
Southern Power	—		—		—		500		500		500		—		—		—		—
Other	50		—		—		—		50		50		25		—		25		25
Total	$	361	$	236	$	480	$	4,100	$	5,177	$	5,167	$	151	$	40	$	191	$	227

(a) No credit arrangements expire in 2015 or 2017.