Segment and Related Information (Tables)

6 Months Ended

Jun. 30, 2012

Segment and Related Information [Abstract]

Financial data for business segments

	Electric Utilities
	Traditional         Operating         Companies		Southern         Power		Eliminations			Total		All   Other		Eliminations		Consolidated
	(in millions)
Three Months Ended June 30, 2012:
Operating revenues	$	3,989	$	286	$	(109)		$	4,166	$	35	$	(20)	$	4,181
Segment net income (loss)(a)		549		47		—			596		27		—		623
Six Months Ended June 30, 2012:
Operating revenues	$	7,438	$	539	$	(222)		$	7,755	$	73	$	(43)	$	7,785
Segment net income (loss)(a)		888		76		—			964		28		(1)		991
Total assets at June 30, 2012	$	56,726	$	3,785	$	(126)		$	60,385	$	1,132	$	(620)	$	60,897
Three Months Ended June 30, 2011:
Operating revenues	$	4,291	$	305	$	(93)		$	4,503	$	38	$	(20)	$	4,521
Segment net income (loss)(a)		559		44		—			603		1		—		604
Six Months Ended June 30, 2011:
Operating revenues	$	8,101	$	587	$	(191)		$	8,497	$	76	$	(40)	$	8,533
Segment net income (loss)(a)		943		82		—			1,025		2		(1)		1,026
Total assets at December 31, 2011	$	54,622	$	3,581	$	(127	)	$	58,076	$	1,592	$	(401)	$	59,267

(a) After dividends on preferred and preference stock of subsidiaries

Financial data for products and services

	Electric Utilities’ Revenues
Period	Retail		Wholesale		Other		Total
	(in millions)
Three Months Ended June 30, 2012	$	3,597	$	415	$	154	$	4,166
Three Months Ended June 30, 2011		3,842		507		154		4,503
Six Months Ended June 30, 2012	$	6,689	$	764	$	302	$	7,755
Six Months Ended June 30, 2011		7,238		956		303		8,497