Condensed Consolidated Statements of Income (Unaudited) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013	Sep. 30, 2012
Operating Revenues:
Retail revenues	$ 4,319,000,000		$ 4,379,000,000		$ 11,237,000,000	$ 11,068,000,000
Wholesale revenues	520,000,000		497,000,000		1,406,000,000	1,261,000,000
Other electric revenues	166,000,000		157,000,000		477,000,000	459,000,000
Other revenues	12,000,000		16,000,000		40,000,000	46,000,000
Total operating revenues	5,017,000,000		5,049,000,000		13,160,000,000	12,834,000,000
Operating Expenses:
Fuel	1,580,000,000		1,553,000,000		4,216,000,000	3,907,000,000
Purchased power	145,000,000		164,000,000		367,000,000	455,000,000
Other operations and maintenance	928,000,000		906,000,000		2,849,000,000	2,817,000,000
MC Asset Recovery insurance settlement	0		0		0	(19,000,000)
Depreciation and amortization	480,000,000		449,000,000		1,422,000,000	1,335,000,000
Taxes other than income taxes	243,000,000		237,000,000		710,000,000	690,000,000
Estimated loss on Kemper IGCC	150,000,000		0		1,140,000,000	0
Total operating expenses	3,526,000,000		3,309,000,000		10,704,000,000	9,185,000,000
Operating Income	1,491,000,000		1,740,000,000		2,456,000,000	3,649,000,000
Other Income and (Expense):
Allowance for equity funds used during construction	53,000,000		39,000,000		139,000,000	102,000,000
Leveraged lease income (loss)	5,000,000		5,000,000		(11,000,000)	16,000,000
Interest expense, net of amounts capitalized	(202,000,000)		(218,000,000)		(628,000,000)	(649,000,000)
Other income (expense), net	(10,000,000)		(4,000,000)		(20,000,000)	(4,000,000)
Total other income and (expense)	(154,000,000)		(178,000,000)		(520,000,000)	(535,000,000)
Earnings Before Income Taxes	1,337,000,000		1,562,000,000		1,936,000,000	3,114,000,000
Income taxes	468,000,000		569,000,000		657,000,000	1,098,000,000
Consolidated Net Income	869,000,000		993,000,000		1,279,000,000	2,016,000,000
Dividends on Preferred and Preference Stock of Subsidiaries	17,000,000		17,000,000		49,000,000	49,000,000
Consolidated Net Income After Dividends on Preferred and Preference Stock of Subsidiaries	852,000,000	[1],[2]	976,000,000	[1]	1,230,000,000	1,967,000,000	[1]
Earnings per share (EPS) -
Basic EPS (in dollars per share)	$ 0.97		$ 1.11		$ 1.41	$ 2.26
Diluted EPS (in dollars per share)	$ 0.97		$ 1.11		$ 1.40	$ 2.23
Average number of shares of common stock outstanding (in millions)
Basic (in shares)	878		876		874	872
Diluted (in shares)	881		883		879	880
Cash dividends paid per share of common stock	$ 0.5075		$ 0.4900		$ 1.5050	$ 1.4525
Alabama Power [Member]
Operating Revenues:
Retail revenues	1,438,000,000		1,476,000,000		3,800,000,000	3,822,000,000
Wholesale revenues, non-affiliates	66,000,000		79,000,000		186,000,000	210,000,000
Wholesale revenues, affiliates	47,000,000		31,000,000		163,000,000	51,000,000
Other revenues	53,000,000		51,000,000		155,000,000	147,000,000
Total operating revenues	1,604,000,000		1,637,000,000		4,304,000,000	4,230,000,000
Operating Expenses:
Fuel	467,000,000		469,000,000		1,240,000,000	1,118,000,000
Purchased power, non-affiliates	36,000,000		31,000,000		84,000,000	63,000,000
Purchased power, affiliates	30,000,000		41,000,000		102,000,000	147,000,000
Other operations and maintenance	316,000,000		307,000,000		965,000,000	944,000,000
Depreciation and amortization	170,000,000		161,000,000		487,000,000	478,000,000
Taxes other than income taxes	85,000,000		84,000,000		262,000,000	255,000,000
Total operating expenses	1,104,000,000		1,093,000,000		3,140,000,000	3,005,000,000
Operating Income	500,000,000		544,000,000		1,164,000,000	1,225,000,000
Other Income and (Expense):
Allowance for equity funds used during construction	7,000,000		4,000,000		23,000,000	13,000,000
Interest expense, net of amounts capitalized	(65,000,000)		(71,000,000)		(196,000,000)	(217,000,000)
Other income (expense), net	0		(3,000,000)		1,000,000	(6,000,000)
Total other income and (expense)	(58,000,000)		(70,000,000)		(172,000,000)	(210,000,000)
Earnings Before Income Taxes	442,000,000		474,000,000		992,000,000	1,015,000,000
Income taxes	174,000,000		184,000,000		390,000,000	394,000,000
Consolidated Net Income	268,000,000		290,000,000		602,000,000	621,000,000
Dividends on Preferred and Preference Stock	10,000,000		10,000,000		30,000,000	30,000,000
Consolidated Net Income After Dividends on Preferred and Preference Stock of Subsidiaries	258,000,000		280,000,000		572,000,000	591,000,000
Georgia Power [Member]
Operating Revenues:
Retail revenues	2,314,000,000		2,335,000,000		5,922,000,000	5,786,000,000
Wholesale revenues, non-affiliates	77,000,000		73,000,000		212,000,000	214,000,000
Wholesale revenues, affiliates	3,000,000		5,000,000		14,000,000	14,000,000
Other revenues	90,000,000		85,000,000		260,000,000	249,000,000
Total operating revenues	2,484,000,000		2,498,000,000		6,408,000,000	6,263,000,000
Operating Expenses:
Fuel	691,000,000		630,000,000		1,767,000,000	1,642,000,000
Purchased power, non-affiliates	64,000,000		79,000,000		175,000,000	266,000,000
Purchased power, affiliates	152,000,000		181,000,000		503,000,000	469,000,000
Other operations and maintenance	402,000,000		398,000,000		1,230,000,000	1,243,000,000
Depreciation and amortization	201,000,000		186,000,000		605,000,000	559,000,000
Taxes other than income taxes	102,000,000		100,000,000		292,000,000	281,000,000
Total operating expenses	1,612,000,000		1,574,000,000		4,572,000,000	4,460,000,000
Operating Income	872,000,000		924,000,000		1,836,000,000	1,803,000,000
Other Income and (Expense):
Allowance for equity funds used during construction	11,000,000		15,000,000		24,000,000	41,000,000
Interest expense, net of amounts capitalized	(92,000,000)		(95,000,000)		(279,000,000)	(276,000,000)
Other income (expense), net	(1,000,000)		(1,000,000)		(2,000,000)	(10,000,000)
Total other income and (expense)	(82,000,000)		(81,000,000)		(257,000,000)	(245,000,000)
Earnings Before Income Taxes	790,000,000		843,000,000		1,579,000,000	1,558,000,000
Income taxes	299,000,000		314,000,000		600,000,000	558,000,000
Consolidated Net Income	491,000,000		529,000,000		979,000,000	1,000,000,000
Dividends on Preferred and Preference Stock	4,000,000		4,000,000		13,000,000	13,000,000
Consolidated Net Income After Dividends on Preferred and Preference Stock of Subsidiaries	487,000,000		525,000,000		966,000,000	987,000,000
Gulf Power [Member]
Operating Revenues:
Retail revenues	335,916,000		347,435,000		901,343,000	880,833,000
Wholesale revenues, non-affiliates	29,431,000		27,462,000		82,533,000	83,309,000
Wholesale revenues, affiliates	16,701,000		30,113,000		65,206,000	95,179,000
Other revenues	17,313,000		16,809,000		47,726,000	48,951,000
Total operating revenues	399,361,000		421,819,000		1,096,808,000	1,108,272,000
Operating Expenses:
Fuel	136,216,000		160,749,000		397,409,000	423,057,000
Purchased power, non-affiliates	17,180,000		18,380,000		41,369,000	41,690,000
Purchased power, affiliates	15,829,000		10,785,000		30,075,000	18,508,000
Other operations and maintenance	76,964,000		74,781,000		232,472,000	229,790,000
Depreciation and amortization	37,345,000		36,169,000		111,479,000	104,649,000
Taxes other than income taxes	28,051,000		27,142,000		75,437,000	76,202,000
Total operating expenses	311,585,000		328,006,000		888,241,000	893,896,000
Operating Income	87,776,000		93,813,000		208,567,000	214,376,000
Other Income and (Expense):
Allowance for equity funds used during construction	1,663,000		1,015,000		4,318,000	3,988,000
Interest expense, net of amounts capitalized	(13,988,000)		(14,637,000)		(42,650,000)	(45,703,000)
Other income (expense), net	(337,000)		(557,000)		(2,704,000)	(454,000)
Total other income and (expense)	(12,662,000)		(14,179,000)		(41,036,000)	(42,169,000)
Earnings Before Income Taxes	75,114,000		79,634,000		167,531,000	172,207,000
Income taxes	28,109,000		30,329,000		62,950,000	64,172,000
Consolidated Net Income	47,005,000		49,305,000		104,581,000	108,035,000
Dividends on Preferred and Preference Stock	2,251,000		1,551,000		5,453,000	4,652,000
Consolidated Net Income After Dividends on Preferred and Preference Stock of Subsidiaries	44,754,000		47,754,000		99,128,000	103,383,000
Mississippi Power [Member]
Operating Revenues:
Retail revenues	230,710,000		220,296,000		613,274,000	578,744,000
Wholesale revenues, non-affiliates	82,937,000		77,017,000		219,984,000	195,364,000
Wholesale revenues, affiliates	6,999,000		4,232,000		31,242,000	13,596,000
Other revenues	4,560,000		3,874,000		13,075,000	12,513,000
Total operating revenues	325,206,000		305,419,000		877,575,000	800,217,000
Operating Expenses:
Fuel	138,148,000		127,576,000		384,905,000	321,664,000
Purchased power, non-affiliates	2,077,000		1,357,000		5,222,000	4,434,000
Purchased power, affiliates	14,691,000		15,683,000		28,302,000	35,386,000
Other operations and maintenance	56,907,000		53,541,000		166,175,000	168,937,000
Depreciation and amortization	22,202,000		21,136,000		67,644,000	66,134,000
Taxes other than income taxes	21,071,000		19,975,000		60,760,000	60,312,000
Estimated loss on Kemper IGCC	150,000,000		0		1,062,000,000	0
Total operating expenses	405,096,000		239,268,000		1,775,008,000	656,867,000
Operating Income	(79,890,000)		66,151,000		(897,433,000)	143,350,000
Other Income and (Expense):
Allowance for equity funds used during construction	32,624,000		17,763,000		87,740,000	43,460,000
Interest expense, net of amounts capitalized	(8,728,000)		(9,735,000)		(29,526,000)	(30,563,000)
Other income (expense), net	(375,000)		2,584,000		(4,184,000)	2,303,000
Total other income and (expense)	23,521,000		10,612,000		54,030,000	15,200,000
Earnings Before Income Taxes	(56,369,000)		76,763,000		(843,403,000)	158,550,000
Income taxes	(32,687,000)		21,705,000		(355,156,000)	42,344,000
Consolidated Net Income	(23,682,000)		55,058,000		(488,247,000)	116,206,000
Dividends on Preferred and Preference Stock	433,000		433,000		1,299,000	1,299,000
Consolidated Net Income After Dividends on Preferred and Preference Stock of Subsidiaries	(24,115,000)		54,625,000		(489,546,000)	114,907,000
Southern Power [Member]
Operating Revenues:
Wholesale revenues, non-affiliates	265,752,000		239,916,000		705,828,000	558,338,000
Wholesale revenues, affiliates	96,795,000		112,705,000		263,624,000	330,443,000
Other revenues	2,220,000		2,350,000		5,517,000	5,676,000
Total operating revenues	364,767,000		354,971,000		974,969,000	894,457,000
Operating Expenses:
Fuel	133,464,000		126,109,000		363,466,000	306,738,000
Purchased power, non-affiliates	19,673,000		23,888,000		56,553,000	67,052,000
Purchased power, affiliates	7,011,000		2,650,000		21,158,000	7,904,000
Other operations and maintenance	41,309,000		40,357,000		154,920,000	128,951,000
Depreciation and amortization	41,094,000		37,612,000		126,152,000	103,541,000
Taxes other than income taxes	5,719,000		5,121,000		16,526,000	14,656,000
Total operating expenses	248,270,000		235,737,000		738,775,000	628,842,000
Operating Income	116,497,000		119,234,000		236,194,000	265,615,000
Other Income and (Expense):
Interest expense, net of amounts capitalized	(12,961,000)		(17,210,000)		(53,923,000)	(44,801,000)
Other income (expense), net	(791,000)		(522,000)		(2,739,000)	(686,000)
Total other income and (expense)	(13,752,000)		(17,732,000)		(56,662,000)	(45,487,000)
Earnings Before Income Taxes	102,745,000		101,502,000		179,532,000	220,128,000
Income taxes	17,592,000		33,126,000		37,265,000	75,834,000
Consolidated Net Income	$ 85,153,000		$ 68,376,000		$ 142,267,000	$ 144,294,000

[1] After dividends on preferred and preference stock of subsidiaries.

[2] Segment net income (loss) for the three months ended September 30, 2013 includes a $150 million pre-tax charge ($93 million after tax) for an estimated probable loss on the Kemper IGCC. See Note (B) under "Integrated Coal Gasification Combined Cycle – Kemper IGCC Cost Estimate" herein for additional information.