Condensed Consolidated Statements of Income (Unaudited) (USD $) Share data in Millions, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Operating Revenues:
Retail revenues	$ 3,842,000,000	$ 3,571,000,000	$ 7,238,000,000	$ 7,030,000,000
Wholesale revenues	507,000,000	473,000,000	956,000,000	1,015,000,000
Other electric revenues	154,000,000	143,000,000	303,000,000	278,000,000
Other revenues	18,000,000	21,000,000	36,000,000	42,000,000
Total operating revenues	4,521,000,000	4,208,000,000	8,533,000,000	8,365,000,000
Operating Expenses:
Fuel	1,673,000,000	1,629,000,000	3,149,000,000	3,274,000,000
Purchased power	145,000,000	128,000,000	245,000,000	255,000,000
Other operations and maintenance	910,000,000	919,000,000	1,854,000,000	1,827,000,000
Depreciation and amortization	430,000,000	367,000,000	848,000,000	710,000,000
Taxes other than income taxes	227,000,000	214,000,000	447,000,000	426,000,000
Total operating expenses	3,385,000,000	3,257,000,000	6,543,000,000	6,492,000,000
Operating Income	1,136,000,000	951,000,000	1,990,000,000	1,873,000,000
Other Income and (Expense):
Allowance for equity funds used during construction	36,000,000	46,000,000	71,000,000	95,000,000
Interest expense, net of amounts capitalized	(199,000,000)	(219,000,000)	(421,000,000)	(441,000,000)
Other income (expense), net	(4,000,000)	(5,000,000)	(2,000,000)	(7,000,000)
Total other income and (expense)	(167,000,000)	(178,000,000)	(352,000,000)	(353,000,000)
Earnings Before Income Taxes	969,000,000	773,000,000	1,638,000,000	1,520,000,000
Income taxes	349,000,000	247,000,000	580,000,000	483,000,000
Consolidated Net Income	620,000,000	526,000,000	1,058,000,000	1,037,000,000
Dividends on Preferred and Preference Stock of Subsidiaries	16,000,000	16,000,000	32,000,000	32,000,000
Consolidated Net Income After Dividends on Preferred and Preference Stock of Subsidiaries	604,000,000	510,000,000	1,026,000,000	1,005,000,000
Earnings per share (EPS) -
Basic EPS	$ 0.71	$ 0.62	$ 1.20	$ 1.22
Diluted EPS	$ 0.70	$ 0.61	$ 1.20	$ 1.21
Average number of shares of common stock outstanding (in millions)
Basic	855	828	851	825
Diluted	862	833	858	829
Cash dividends paid per share of common stock	$ 0.4725	$ 0.4550	$ 0.9275	$ 0.8925
Alabama Power [Member]
Operating Revenues:
Retail revenues	1,244,000,000	1,222,000,000	2,370,000,000	2,398,000,000
Wholesale revenues, non-affiliates	70,000,000	137,000,000	138,000,000	309,000,000
Wholesale revenues, affiliates	75,000,000	53,000,000	150,000,000	151,000,000
Other revenues	51,000,000	50,000,000	102,000,000	99,000,000
Total operating revenues	1,440,000,000	1,462,000,000	2,760,000,000	2,957,000,000
Operating Expenses:
Fuel	428,000,000	466,000,000	823,000,000	955,000,000
Purchased power, non-affiliates	17,000,000	13,000,000	28,000,000	31,000,000
Purchased power, affiliates	57,000,000	52,000,000	103,000,000	104,000,000
Other operations and maintenance	290,000,000	308,000,000	587,000,000	618,000,000
Depreciation and amortization	159,000,000	153,000,000	316,000,000	298,000,000
Taxes other than income taxes	85,000,000	81,000,000	170,000,000	163,000,000
Total operating expenses	1,036,000,000	1,073,000,000	2,027,000,000	2,169,000,000
Operating Income	404,000,000	389,000,000	733,000,000	788,000,000
Other Income and (Expense):
Allowance for equity funds used during construction	6,000,000	7,000,000	11,000,000	20,000,000
Interest income	5,000,000	4,000,000	9,000,000	8,000,000
Interest expense, net of amounts capitalized	(77,000,000)	(76,000,000)	(151,000,000)	(151,000,000)
Other income (expense), net	(7,000,000)	(5,000,000)	(13,000,000)	(11,000,000)
Total other income and (expense)	(73,000,000)	(70,000,000)	(144,000,000)	(134,000,000)
Earnings Before Income Taxes	331,000,000	319,000,000	589,000,000	654,000,000
Income taxes	131,000,000	119,000,000	227,000,000	241,000,000
Consolidated Net Income	200,000,000	200,000,000	362,000,000	413,000,000
Dividends on Preferred and Preference Stock of Subsidiaries	10,000,000	10,000,000	20,000,000	20,000,000
Consolidated Net Income After Dividends on Preferred and Preference Stock of Subsidiaries	190,000,000	190,000,000	342,000,000	393,000,000
Georgia Power [Member]
Operating Revenues:
Retail revenues	2,070,000,000	1,826,000,000	3,885,000,000	3,618,000,000
Wholesale revenues, non-affiliates	97,000,000	88,000,000	180,000,000	198,000,000
Wholesale revenues, affiliates	16,000,000	12,000,000	27,000,000	26,000,000
Other revenues	82,000,000	74,000,000	162,000,000	142,000,000
Total operating revenues	2,265,000,000	2,000,000,000	4,254,000,000	3,984,000,000
Operating Expenses:
Fuel	784,000,000	757,000,000	1,461,000,000	1,515,000,000
Purchased power, non-affiliates	96,000,000	84,000,000	170,000,000	166,000,000
Purchased power, affiliates	157,000,000	132,000,000	320,000,000	294,000,000
Other operations and maintenance	419,000,000	400,000,000	841,000,000	789,000,000
Depreciation and amortization	178,000,000	130,000,000	351,000,000	244,000,000
Taxes other than income taxes	94,000,000	86,000,000	181,000,000	166,000,000
Total operating expenses	1,728,000,000	1,589,000,000	3,324,000,000	3,174,000,000
Operating Income	537,000,000	411,000,000	930,000,000	810,000,000
Other Income and (Expense):
Allowance for equity funds used during construction	22,000,000	36,000,000	47,000,000	71,000,000
Interest expense, net of amounts capitalized	(71,000,000)	(87,000,000)	(167,000,000)	(180,000,000)
Other income (expense), net	(5,000,000)	(1,000,000)	(6,000,000)	(7,000,000)
Total other income and (expense)	(54,000,000)	(52,000,000)	(126,000,000)	(116,000,000)
Earnings Before Income Taxes	483,000,000	359,000,000	804,000,000	694,000,000
Income taxes	169,000,000	116,000,000	280,000,000	209,000,000
Consolidated Net Income	314,000,000	243,000,000	524,000,000	485,000,000
Dividends on Preferred and Preference Stock of Subsidiaries	5,000,000	5,000,000	9,000,000	9,000,000
Consolidated Net Income After Dividends on Preferred and Preference Stock of Subsidiaries	309,000,000	238,000,000	515,000,000	476,000,000
Gulf Power [Member]
Operating Revenues:
Retail revenues	320,474,000	320,109,000	595,300,000	624,859,000
Wholesale revenues, non-affiliates	38,874,000	26,916,000	69,893,000	54,830,000
Wholesale revenues, affiliates	22,857,000	40,873,000	26,992,000	50,391,000
Other revenues	17,060,000	15,273,000	31,688,000	29,803,000
Total operating revenues	399,265,000	403,171,000	723,873,000	759,883,000
Operating Expenses:
Fuel	178,686,000	195,452,000	310,468,000	348,164,000
Purchased power, non-affiliates	10,889,000	14,409,000	17,892,000	21,844,000
Purchased power, affiliates	12,549,000	11,030,000	29,167,000	31,443,000
Other operations and maintenance	72,583,000	64,606,000	153,092,000	135,024,000
Depreciation and amortization	32,304,000	28,548,000	64,060,000	56,619,000
Taxes other than income taxes	24,867,000	24,060,000	49,763,000	49,293,000
Total operating expenses	331,878,000	338,105,000	624,442,000	642,387,000
Operating Income	67,387,000	65,066,000	99,431,000	117,496,000
Other Income and (Expense):
Allowance for equity funds used during construction	2,522,000	1,695,000	4,657,000	3,080,000
Interest income	20,000	39,000	34,000	56,000
Interest expense, net of amounts capitalized	(14,423,000)	(13,137,000)	(28,052,000)	(24,522,000)
Other income (expense), net	(447,000)	(351,000)	(1,010,000)	(884,000)
Total other income and (expense)	(12,328,000)	(11,754,000)	(24,371,000)	(22,270,000)
Earnings Before Income Taxes	55,059,000	53,312,000	75,060,000	95,226,000
Income taxes	20,157,000	19,445,000	26,916,000	34,508,000
Consolidated Net Income	34,902,000	33,867,000	48,144,000	60,718,000
Dividends on Preferred and Preference Stock of Subsidiaries	1,550,000	1,550,000	3,101,000	3,101,000
Consolidated Net Income After Dividends on Preferred and Preference Stock of Subsidiaries	33,352,000	32,317,000	45,043,000	57,617,000
Mississippi Power [Member]
Operating Revenues:
Retail revenues	207,005,000	203,094,000	387,479,000	389,681,000
Wholesale revenues, non-affiliates	67,813,000	66,201,000	137,664,000	145,090,000
Wholesale revenues, affiliates	6,303,000	3,936,000	15,603,000	18,611,000
Other revenues	4,920,000	3,590,000	8,571,000	7,077,000
Total operating revenues	286,041,000	276,821,000	549,317,000	560,459,000
Operating Expenses:
Fuel	123,674,000	103,575,000	244,728,000	234,372,000
Purchased power, non-affiliates	1,336,000	1,498,000	2,346,000	5,119,000
Purchased power, affiliates	19,867,000	34,490,000	28,217,000	49,211,000
Other operations and maintenance	64,512,000	71,764,000	134,879,000	139,102,000
Depreciation and amortization	20,345,000	18,786,000	40,208,000	37,461,000
Taxes other than income taxes	17,251,000	17,173,000	34,732,000	35,633,000
Total operating expenses	246,985,000	247,286,000	485,110,000	500,898,000
Operating Income	39,056,000	29,535,000	64,207,000	59,561,000
Other Income and (Expense):
Allowance for equity funds used during construction	4,991,000	510,000	8,122,000	528,000
Interest income	401,000	40,000	743,000	73,000
Interest expense, net of amounts capitalized	(5,532,000)	(5,946,000)	(11,545,000)	(12,125,000)
Other income (expense), net	(613,000)	642,000	(1,016,000)	2,173,000
Total other income and (expense)	(753,000)	(4,754,000)	(3,696,000)	(9,351,000)
Earnings Before Income Taxes	38,303,000	24,781,000	60,511,000	50,210,000
Income taxes	12,587,000	9,129,000	19,745,000	18,872,000
Consolidated Net Income	25,716,000	15,652,000	40,766,000	31,338,000
Dividends on Preferred and Preference Stock of Subsidiaries	433,000	433,000	866,000	866,000
Consolidated Net Income After Dividends on Preferred and Preference Stock of Subsidiaries	25,283,000	15,219,000	39,900,000	30,472,000
Southern Power [Member]
Operating Revenues:
Wholesale revenues, non-affiliates	232,960,000	153,989,000	430,126,000	307,326,000
Wholesale revenues, affiliates	70,569,000	92,784,000	153,843,000	194,541,000
Other revenues	1,680,000	1,703,000	3,027,000	3,097,000
Total operating revenues	305,209,000	248,476,000	586,996,000	504,964,000
Operating Expenses:
Fuel	101,158,000	76,678,000	203,873,000	174,192,000
Purchased power, non-affiliates	19,664,000	15,622,000	28,606,000	34,164,000
Purchased power, affiliates	22,178,000	25,009,000	37,277,000	48,420,000
Other operations and maintenance	40,047,000	38,236,000	82,801,000	77,246,000
Depreciation and amortization	30,805,000	28,892,000	60,972,000	58,001,000
Taxes other than income taxes	4,565,000	5,137,000	9,328,000	10,243,000
Total operating expenses	218,417,000	189,574,000	422,857,000	402,266,000
Operating Income	86,792,000	58,902,000	164,139,000	102,698,000
Other Income and (Expense):
Interest expense, net of amounts capitalized	(17,774,000)	(19,553,000)	(36,603,000)	(39,607,000)
Other income (expense), net	(260,000)	(313,000)	(201,000)	105,000
Total other income and (expense)	(18,034,000)	(19,866,000)	(36,804,000)	(39,502,000)
Earnings Before Income Taxes	68,758,000	39,036,000	127,335,000	63,196,000
Income taxes	24,157,000	7,469,000	44,991,000	16,905,000
Consolidated Net Income	$ 44,601,000	$ 31,567,000	$ 82,344,000	$ 46,291,000