Introduction (Tables)

9 Months Ended

Sep. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Asset Retirement Obligations

As of September 30, 2015, details of the AROs, including those related to the CCR Rule, included in Southern Company's and the traditional operating companies' Condensed Balance Sheets herein were as follows:

	Southern Company			Alabama Power			Georgia Power			Gulf Power		Mississippi Power
	(in millions)
Balance at beginning of year	$	2,201		$	829		$	1,255		$	17	$	48
Liabilities incurred	644			402			—			101		97
Liabilities settled	(19		)	(1		)	(18		)	—		—
Accretion	83			38			42			1		2
Cash flow revisions	214			20			193			3		25
Balance at end of period	$	3,123		$	1,288		$	1,472		$	122	$	172