Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	6 Months Ended
Jun. 30, 2012	Jun. 30, 2011
Operating Activities:
Consolidated net income	$ 1,023,000,000	$ 1,058,000,000
Adjustments to reconcile consolidated net income to net cash provided from operating activities --
Depreciation and amortization, total	1,064,000,000	1,011,000,000
Deferred income taxes	327,000,000	427,000,000
Allowance for equity funds used during construction	(63,000,000)	(71,000,000)
Pension, postretirement, and other employee benefits	13,000,000	(38,000,000)
Stock based compensation expense	35,000,000	27,000,000
Retail fuel cost over recovery - long-term	44,000,000
Other, net	(17,000,000)	(6,000,000)
Changes in certain current assets and liabilities --
-Receivables	(55,000,000)	(156,000,000)
-Fossil fuel stock	(305,000,000)	81,000,000
-Other current assets	(53,000,000)	(106,000,000)
-Accounts payable	(167,000,000)	58,000,000
-Accrued taxes	45,000,000	300,000,000
-Accrued compensation	(216,000,000)	(193,000,000)
-Retail fuel cost over recovery - short-term	101,000,000	(6,000,000)
-Other current liabilities	(19,000,000)	3,000,000
Net cash provided from operating activities	1,757,000,000	2,389,000,000
Investing Activities:
Property additions	(2,356,000,000)	(2,126,000,000)
Investment of restricted cash	(230,000,000)	(3,000,000)
Distribution of restricted cash	49,000,000	61,000,000
Nuclear decommissioning trust fund purchases	(576,000,000)	(1,405,000,000)
Nuclear decommissioning trust fund sales	574,000,000	1,401,000,000
Proceeds from property sales	2,000,000	17,000,000
Cost of removal, net of salvage	(58,000,000)	(68,000,000)
Change in construction payables	(134,000,000)	37,000,000
Other investing activities	(62,000,000)	22,000,000
Net cash used for investing activities	(2,791,000,000)	(2,064,000,000)
Financing Activities:
Increase (decrease) in notes payable, net	(406,000,000)	(440,000,000)
Proceeds --
Long-term debt issuances	2,487,000,000	1,950,000,000
Interest-bearing refundable deposit related to asset sale	150,000,000
Common stock issuances	316,000,000	482,000,000
Redemptions --
Long-term debt	(1,319,000,000)	(1,504,000,000)
Payment of common stock dividends	(837,000,000)	(787,000,000)
Payment of dividends on preferred and preference stock of subsidiaries	(32,000,000)	(32,000,000)
Other financing activities	19,000,000	(4,000,000)
Net cash provided from (used for) financing activities	378,000,000	(335,000,000)
Net Change in Cash and Cash Equivalents	(656,000,000)	(10,000,000)
Cash and Cash Equivalents at Beginning of Period	1,315,000,000	447,000,000
Cash and Cash Equivalents at End of Period	659,000,000	437,000,000
Cash paid (received) during the period for --
Interest (net capitalized for 2012 and 2011, respectively)	391,000,000	419,000,000
Income taxes, net	(34,000,000)	(355,000,000)
Noncash transactions - accrued property additions at end of period	488,000,000	407,000,000
Alabama Power [Member]
Operating Activities:
Consolidated net income	331,000,000	362,000,000
Adjustments to reconcile consolidated net income to net cash provided from operating activities --
Depreciation and amortization, total	380,000,000	373,000,000
Deferred income taxes	85,000,000	174,000,000
Allowance for equity funds used during construction	(9,000,000)	(11,000,000)
Pension, postretirement, and other employee benefits	(8,000,000)	(24,000,000)
Stock based compensation expense	6,000,000	4,000,000
Other, net	(24,000,000)	(3,000,000)
Changes in certain current assets and liabilities --
-Receivables	(46,000,000)	(57,000,000)
-Fossil fuel stock	(125,000,000)	13,000,000
-Materials and supplies	(6,000,000)	(5,000,000)
-Other current assets	(31,000,000)	(66,000,000)
-Accounts payable	(145,000,000)	(77,000,000)
-Accrued taxes	128,000,000	193,000,000
-Accrued compensation	(45,000,000)	(52,000,000)
-Other current liabilities	(10,000,000)	(5,000,000)
Net cash provided from operating activities	481,000,000	819,000,000
Investing Activities:
Property additions	(436,000,000)	(485,000,000)
Distribution of restricted cash from pollution control revenue bonds		11,000,000
Nuclear decommissioning trust fund purchases	(88,000,000)	(252,000,000)
Nuclear decommissioning trust fund sales	88,000,000	252,000,000
Cost of removal, net of salvage	(7,000,000)	(47,000,000)
Change in construction payables	(12,000,000)	(14,000,000)
Other investing activities	(9,000,000)	(22,000,000)
Net cash used for investing activities	(464,000,000)	(557,000,000)
Proceeds --
Capital contributions from parent company	11,000,000	5,000,000
Senior notes issuances	250,000,000	700,000,000
Redemptions --
Pollution control revenue bonds	(1,000,000)
Senior notes	(250,000,000)	(650,000,000)
Payment of preferred and preference stock dividends	(20,000,000)	(20,000,000)
Payment of common stock dividends	(270,000,000)	(277,000,000)
Other financing activities	(3,000,000)	(12,000,000)
Net cash provided from (used for) financing activities	(283,000,000)	(254,000,000)
Net Change in Cash and Cash Equivalents	(266,000,000)	8,000,000
Cash and Cash Equivalents at Beginning of Period	344,000,000	154,000,000
Cash and Cash Equivalents at End of Period	78,000,000	162,000,000
Cash paid (received) during the period for --
Interest (net capitalized for 2012 and 2011, respectively)	136,000,000	141,000,000
Income taxes, net	31,000,000	(100,000,000)
Noncash transactions - accrued property additions at end of period	7,000,000	14,000,000
Georgia Power [Member]
Operating Activities:
Consolidated net income	471,000,000	524,000,000
Adjustments to reconcile consolidated net income to net cash provided from operating activities --
Depreciation and amortization, total	458,000,000	426,000,000
Deferred income taxes	128,000,000	189,000,000
Allowance for equity funds used during construction	(26,000,000)	(47,000,000)
Retail fuel cost over recovery - long-term	44,000,000
Other, net	(3,000,000)	(73,000,000)
Deferred expenses	26,000,000	33,000,000
Changes in certain current assets and liabilities --
-Receivables	19,000,000	(100,000,000)
-Fossil fuel stock	(147,000,000)	55,000,000
-Prepaid income taxes	13,000,000	77,000,000
-Other current assets	8,000,000	(14,000,000)
-Accounts payable	(37,000,000)	60,000,000
-Accrued taxes	(77,000,000)	(123,000,000)
-Accrued compensation	(60,000,000)	(42,000,000)
-Retail fuel cost over recovery - short-term	55,000,000
-Other current liabilities	43,000,000	46,000,000
Net cash provided from operating activities	915,000,000	1,011,000,000
Investing Activities:
Property additions	(812,000,000)	(931,000,000)
Investment of restricted cash	(234,000,000)
Distribution of restricted cash	49,000,000
Nuclear decommissioning trust fund purchases	(488,000,000)	(1,152,000,000)
Nuclear decommissioning trust fund sales	486,000,000	1,149,000,000
Cost of removal, net of salvage	(34,000,000)	(9,000,000)
Change in construction payables, net of joint owner portion	(161,000,000)	34,000,000
Other investing activities	(14,000,000)	(12,000,000)
Net cash used for investing activities	(1,208,000,000)	(921,000,000)
Financing Activities:
Increase (decrease) in notes payable, net	(513,000,000)	(253,000,000)
Proceeds --
Capital contributions from parent company	18,000,000	183,000,000
Pollution control revenue bonds issuances	234,000,000	250,000,000
Senior notes issuances	1,500,000,000	550,000,000
Other long-term debt issuances		250,000,000
Redemptions --
Pollution control revenue bonds	(49,000,000)	(197,000,000)
Senior notes		(101,000,000)
Other long-term debt	(250,000,000)	(300,000,000)
Payment of preferred and preference stock dividends	(9,000,000)	(9,000,000)
Payment of common stock dividends	(454,000,000)	(448,000,000)
Other financing activities	(9,000,000)	(2,000,000)
Net cash provided from (used for) financing activities	468,000,000	(77,000,000)
Net Change in Cash and Cash Equivalents	175,000,000	13,000,000
Cash and Cash Equivalents at Beginning of Period	13,000,000	8,000,000
Cash and Cash Equivalents at End of Period	188,000,000	21,000,000
Cash paid (received) during the period for --
Interest (net capitalized for 2012 and 2011, respectively)	156,000,000	177,000,000
Income taxes, net	44,000,000	(15,000,000)
Noncash transactions - accrued property additions at end of period	234,000,000	299,000,000
Gulf Power [Member]
Operating Activities:
Consolidated net income	58,730,000	48,144,000
Adjustments to reconcile consolidated net income to net cash provided from operating activities --
Depreciation and amortization, total	71,707,000	67,129,000
Deferred income taxes	70,153,000	20,411,000
Allowance for equity funds used during construction	(2,973,000)	(4,657,000)
Pension, postretirement, and other employee benefits	2,383,000	(993,000)
Stock based compensation expense	1,044,000	789,000
Other, net	7,503,000	(3,496,000)
Changes in certain current assets and liabilities --
-Receivables	(18,580,000)	(33,496,000)
-Prepayments	1,813,000	1,373,000
-Fossil fuel stock	3,982,000	21,458,000
-Materials and supplies	(4,100,000)	(4,088,000)
-Prepaid income taxes	(3,566,000)	35,287,000
-Other current assets		23,000
-Accounts payable	(17,481,000)	(1,710,000)
-Accrued taxes	6,788,000	28,851,000
-Accrued compensation	(6,239,000)	(6,132,000)
-Over recovered regulatory clause revenues	25,099,000	4,027,000
-Other current liabilities	(1,659,000)	2,274,000
Net cash provided from operating activities	194,604,000	175,194,000
Investing Activities:
Property additions	(169,462,000)	(168,986,000)
Cost of removal, net of salvage	(14,817,000)	(6,616,000)
Change in construction payables	3,661,000	(31,000)
Payments pursuant to long-term service agreements	(4,086,000)	(4,162,000)
Other investing activities	18,000	222,000
Net cash used for investing activities	(184,686,000)	(179,573,000)
Financing Activities:
Increase (decrease) in notes payable, net	5,980,000	1,392,000
Proceeds --
Capital contributions from parent company	954,000	1,014,000
Common stock issuances	40,000,000	50,000,000
Senior notes issuances	100,000,000	125,000,000
Redemptions --
Senior notes	(91,363,000)	(352,000)
Other long-term debt		(110,000,000)
Payment of preferred and preference stock dividends	(3,101,000)	(3,101,000)
Payment of common stock dividends	(57,900,000)	(55,000,000)
Other financing activities	(653,000)	(3,679,000)
Net cash provided from (used for) financing activities	(6,083,000)	5,274,000
Net Change in Cash and Cash Equivalents	3,835,000	895,000
Cash and Cash Equivalents at Beginning of Period	17,328,000	16,434,000
Cash and Cash Equivalents at End of Period	21,163,000	17,329,000
Cash paid (received) during the period for --
Interest (net capitalized for 2012 and 2011, respectively)	30,100,000	26,288,000
Income taxes, net	(32,848,000)	(46,824,000)
Noncash transactions - accrued property additions at end of period	27,127,000	14,924,000
Mississippi Power [Member]
Operating Activities:
Consolidated net income	61,148,000	40,766,000
Adjustments to reconcile consolidated net income to net cash provided from operating activities --
Depreciation and amortization, total	43,955,000	43,032,000
Deferred income taxes	1,280,000	(8,136,000)
Allowance for equity funds used during construction	(25,697,000)	(8,122,000)
Pension, postretirement, and other employee benefits	3,993,000	1,601,000
Stock based compensation expense	1,344,000	1,060,000
Other, net	(2,648,000)	(5,584,000)
Convertible investment tax credits	13,974,000	29,556,000
Hedge settlements	(15,983,000)
Changes in certain current assets and liabilities --
-Receivables	(12,424,000)	(8,041,000)
-Fossil fuel stock	(32,797,000)	(8,838,000)
-Materials and supplies	212,000	(603,000)
-Prepaid income taxes	11,974,000	17,075,000
-Other current assets	(7,281,000)	1,021,000
-Accounts payable	3,408,000	17,927,000
-Accrued taxes	(16,785,000)	(6,227,000)
-Accrued compensation	(7,002,000)	(7,064,000)
-Over recovered regulatory clause revenues	15,871,000	(10,748,000)
-Other current liabilities	7,640,000	2,066,000
Net cash provided from operating activities	44,182,000	90,741,000
Investing Activities:
Property additions	(763,641,000)	(365,261,000)
Distribution of restricted cash		50,000,000
Cost of removal, net of salvage	(1,217,000)	(4,339,000)
Change in construction payables	57,283,000	31,949,000
Capital grant proceeds	6,146,000	91,650,000
Other investing activities	(9,690,000)	(2,217,000)
Net cash used for investing activities	(711,119,000)	(198,218,000)
Proceeds --
Capital contributions from parent company	277,633,000	100,878,000
Interest-bearing refundable deposit related to asset sale	150,000,000
Senior notes issuances	400,000,000
Other long-term debt issuances		75,000,000
Redemptions --
Capital leases	(633,000)	(705,000)
Other long-term debt	(165,000,000)	(130,000,000)
Payment of preferred and preference stock dividends	(866,000)	(866,000)
Payment of common stock dividends	(53,400,000)	(37,750,000)
Other financing activities	998,000	(134,000)
Net cash provided from (used for) financing activities	608,732,000	6,423,000
Net Change in Cash and Cash Equivalents	(58,205,000)	(101,054,000)
Cash and Cash Equivalents at Beginning of Period	211,585,000	160,779,000
Cash and Cash Equivalents at End of Period	153,380,000	59,725,000
Cash paid (received) during the period for --
Interest (net capitalized for 2012 and 2011, respectively)	16,603,000	9,505,000
Income taxes, net	(7,756,000)	(32,648,000)
Noncash transactions - accrued property additions at end of period	193,184,000	70,772,000
Southern Power [Member]
Operating Activities:
Consolidated net income	75,918,000	82,344,000
Adjustments to reconcile consolidated net income to net cash provided from operating activities --
Depreciation and amortization, total	71,834,000	65,877,000
Deferred income taxes	58,921,000	12,315,000
Other, net	1,927,000	3,590,000
Convertible investment tax credits	1,750,000	62,298,000
Deferred revenues	(16,431,000)	(23,776,000)
Mark-to-market adjustments	(3,847,000)	853,000
Changes in certain current assets and liabilities --
-Receivables	(30,101,000)	(19,276,000)
-Fossil fuel stock	(3,301,000)	41,000
-Materials and supplies	(7,761,000)	(4,431,000)
-Prepaid income taxes	(32,804,000)	1,282,000
-Other current assets	(377,000)	1,810,000
-Accounts payable	(494,000)	3,079,000
-Accrued taxes	13,295,000	7,737,000
-Accrued interest	409,000	50,000
-Other current liabilities	(195,000)	(497,000)
Net cash provided from operating activities	128,743,000	193,296,000
Investing Activities:
Plant acquisition	(86,500,000)
Property additions	(67,846,000)	(162,004,000)
Change in construction payables	(1,168,000)	(14,231,000)
Payments pursuant to long-term service agreements	(36,316,000)	(24,874,000)
Other investing activities	153,000	(3,212,000)
Net cash used for investing activities	(191,677,000)	(204,321,000)
Financing Activities:
Increase (decrease) in notes payable, net	107,147,000	(68,941,000)
Proceeds --
Capital contributions from parent company	490,000	120,574,000
Other long-term debt issuances	3,590,000
Redemptions --
Other long-term debt	(650,000)	(3,116,000)
Payment of common stock dividends	(63,500,000)	(45,600,000)
Other financing activities	2,746,000	146,000
Net cash provided from (used for) financing activities	49,823,000	3,063,000
Net Change in Cash and Cash Equivalents	(13,111,000)	(7,962,000)
Cash and Cash Equivalents at Beginning of Period	16,943,000	14,204,000
Cash and Cash Equivalents at End of Period	3,832,000	6,242,000
Cash paid (received) during the period for --
Interest (net capitalized for 2012 and 2011, respectively)	21,461,000	37,413,000
Income taxes, net	13,708,000	(31,142,000)
Noncash transactions - accrued property additions at end of period	$ 46,922,000	$ 21,077,000

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