Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Operating Revenues:
Retail electric revenues	$ 3,777	$ 3,748	$ 7,171	$ 7,124
Wholesale electric revenues	618	446	1,149	842
Other electric revenues	167	166	342	348
Natural gas revenues	684	0	2,214	0
Other revenues	184	99	326	137
Total operating revenues	5,430	4,459	11,202	8,451
Operating Expenses:
Fuel	1,092	1,023	2,088	1,934
Purchased power	211	189	390	354
Cost of natural gas	232	0	951	0
Cost of other sales	114	58	203	77
Other operations and maintenance	1,301	1,099	2,631	2,206
Depreciation and amortization	754	569	1,469	1,110
Taxes other than income taxes	308	255	638	511
Estimated loss on Kemper IGCC	3,012	81	3,120	134
Total operating expenses	7,024	3,274	11,490	6,326
Operating Income (Loss)	(1,594)	1,185	(288)	2,125
Other Income and (Expense):
Allowance for equity funds used during construction	58	45	115	98
Earnings (loss) from equity method investments	28	(1)	67	(1)
Interest expense, net of amounts capitalized	(424)	(293)	(840)	(539)
Other income (expense), net	(3)	(28)	(11)	(56)
Total other income and (expense)	(341)	(277)	(669)	(498)
Earnings (Loss) Before Income Taxes	(1,935)	908	(957)	1,627
Income taxes (benefit)	(587)	261	(273)	479
Consolidated Net Income (Loss)	(1,348)	647	(684)	1,148
Dividends on preferred and preference stock of subsidiaries	11	12	22	23
Net income attributable to noncontrolling interests	22	12	17	13
Net Income	$ (1,381)	$ 623	$ (723)	$ 1,112
Earnings (loss) per share —
Basic (in dollars per share)	$ (1.38)	$ 0.67	$ (0.73)	$ 1.20
Diluted (in dollars per share)	$ (1.37)	$ 0.66	$ (0.72)	$ 1.20
Average number of shares of common stock outstanding (in millions)
Basic (in shares)	998	934	996	925
Diluted (in shares)	1,005	940	1,003	931
Cash dividends paid per share of common stock (in dollars per share)	$ 0.58	$ 0.56	$ 1.14	$ 1.1025
SOUTHERN POWER CO
Operating Revenues:
Wholesale revenues, non-affiliates	$ 436	$ 264	$ 783	$ 480
Wholesale revenues, affiliates	90	107	190	204
Other revenues	3	2	6	4
Total operating revenues	529	373	979	688
Operating Expenses:
Fuel	139	96	271	187
Purchased power, non-affiliates	29	21	54	35
Purchased power, affiliates	11	2	16	8
Other operations and maintenance	97	86	190	162
Depreciation and amortization	129	81	247	154
Taxes other than income taxes	12	6	24	13
Total operating expenses	417	292	802	559
Operating Income (Loss)	112	81	177	129
Other Income and (Expense):
Interest expense, net of amounts capitalized	(48)	(22)	(97)	(43)
Other income (expense), net	2	1	(2)	1
Total other income and (expense)	(46)	(21)	(99)	(42)
Earnings (Loss) Before Income Taxes	66	60	78	87
Income taxes (benefit)	(38)	(41)	(90)	(65)
Consolidated Net Income (Loss)	104	101	168	152
Net income attributable to noncontrolling interests	22	12	17	13
Net Income	82	89	151	139
ALABAMA POWER CO
Operating Revenues:
Retail electric revenues	1,333	1,316	2,560	2,510
Wholesale revenues, non-affiliates	68	67	133	130
Wholesale revenues, affiliates	32	9	65	31
Other revenues	51	52	108	105
Total operating revenues	1,484	1,444	2,866	2,776
Operating Expenses:
Fuel	303	295	601	564
Purchased power, non-affiliates	40	40	75	76
Purchased power, affiliates	34	55	62	88
Other operations and maintenance	375	355	743	747
Depreciation and amortization	183	175	364	347
Taxes other than income taxes	95	94	191	191
Total operating expenses	1,030	1,014	2,036	2,013
Operating Income (Loss)	454	430	830	763
Other Income and (Expense):
Allowance for equity funds used during construction	8	6	16	16
Interest expense, net of amounts capitalized	(77)	(74)	(153)	(147)
Other income (expense), net	1	(4)	(4)	(11)
Total other income and (expense)	(68)	(72)	(141)	(142)
Earnings (Loss) Before Income Taxes	386	358	689	621
Income taxes (benefit)	151	140	277	242
Consolidated Net Income (Loss)	235	218	412	379
Dividends on preferred and preference stock of subsidiaries	5	5	9	9
Net Income	230	213	403	370
GEORGIA POWER CO
Operating Revenues:
Retail electric revenues	1,904	1,907	3,593	3,624
Wholesale revenues, non-affiliates	40	40	79	82
Wholesale revenues, affiliates	9	10	17	15
Other revenues	95	94	191	202
Total operating revenues	2,048	2,051	3,880	3,923
Operating Expenses:
Fuel	445	439	815	815
Purchased power, non-affiliates	103	92	191	175
Purchased power, affiliates	138	111	310	250
Other operations and maintenance	399	439	781	896
Depreciation and amortization	223	214	444	425
Taxes other than income taxes	101	100	199	197
Total operating expenses	1,409	1,395	2,740	2,758
Operating Income (Loss)	639	656	1,140	1,165
Other Income and (Expense):
Allowance for equity funds used during construction			25	24
Interest expense, net of amounts capitalized	(104)	(99)	(205)	(193)
Other income (expense), net	16	8	36	26
Total other income and (expense)	(88)	(91)	(169)	(167)
Earnings (Loss) Before Income Taxes	551	565	971	998
Income taxes (benefit)	199	211	355	371
Consolidated Net Income (Loss)	352	354	616	627
Dividends on preferred and preference stock of subsidiaries	5	5	9	9
Net Income	347	349	607	618
GULF POWER CO
Operating Revenues:
Retail electric revenues	318	319	596	602
Wholesale revenues, non-affiliates	12	15	30	31
Wholesale revenues, affiliates	10	15	47	36
Other revenues	17	16	34	31
Total operating revenues	357	365	707	700
Operating Expenses:
Fuel	88	107	196	201
Purchased power, non-affiliates	35	32	67	62
Purchased power, affiliates	9	4	11	5
Other operations and maintenance	87	77	171	155
Depreciation and amortization	35	42	53	80
Taxes other than income taxes	28	29	55	58
Loss on Plant Scherer Unit 3	0	0	33	0
Total operating expenses	282	291	586	561
Operating Income (Loss)	75	74	121	139
Other Income and (Expense):
Interest expense, net of amounts capitalized	(13)	(12)	(24)	(25)
Other income (expense), net	(1)	(1)	(2)	(2)
Total other income and (expense)	(14)	(13)	(26)	(27)
Earnings (Loss) Before Income Taxes	61	61	95	112
Income taxes (benefit)	24	24	38	44
Consolidated Net Income (Loss)	37	37	57	68
Dividends on preferred and preference stock of subsidiaries	2	3	4	5
Net Income	35	34	53	63
MISSISSIPPI POWER CO
Operating Revenues:
Retail electric revenues	222	206	422	389
Wholesale revenues, non-affiliates	62	60	124	120
Wholesale revenues, affiliates	15	7	20	16
Other revenues	4	4	9	8
Total operating revenues	303	277	575	533
Operating Expenses:
Fuel	102	81	180	157
Purchased power, non-affiliates	2	1	3	1
Purchased power, affiliates	4	4	11	9
Other operations and maintenance	70	68	144	136
Depreciation and amortization	41	45	81	84
Taxes other than income taxes	26	25	52	50
Estimated loss on Kemper IGCC	3,012	81	3,120	134
Total operating expenses	3,257	305	3,591	571
Operating Income (Loss)	(2,954)	(28)	(3,016)	(38)
Other Income and (Expense):
Allowance for equity funds used during construction	36	30	71	59
Interest expense, net of amounts capitalized	(17)	(15)	(37)	(31)
Other income (expense), net	1	(1)	1	(3)
Total other income and (expense)	20	14	35	25
Earnings (Loss) Before Income Taxes	(2,934)	(14)	(2,981)	(13)
Income taxes (benefit)	(881)	(17)	(908)	(27)
Consolidated Net Income (Loss)	(2,053)	3	(2,073)	14
Dividends on preferred and preference stock of subsidiaries	1	1	1	1
Net Income	(2,054)	2	(2,074)	13
SOUTHERN Co GAS
Operating Revenues:
Natural gas revenues	684		2,214
Other revenues	32		62
Total operating revenues	716		2,276
Operating Expenses:
Cost of natural gas	232		951
Cost of other sales	6		13
Other operations and maintenance	213		467
Depreciation and amortization	125		244
Merger-related expenses	0		0
Taxes other than income taxes	44		114
Total operating expenses	620		1,789
Operating Income (Loss)	96		487
Other Income and (Expense):
Earnings (loss) from equity method investments	29		68
Interest expense, net of amounts capitalized	(48)		(94)
Other income (expense), net	3		7
Total other income and (expense)	(16)		(19)
Earnings (Loss) Before Income Taxes	80		468
Income taxes (benefit)	31		180
Consolidated Net Income (Loss)	49		288
Net income attributable to noncontrolling interests	0		0
Net Income	$ 49		$ 288
Predecessor | SOUTHERN Co GAS
Operating Revenues:
Natural gas revenues		539		1,841
Other revenues		32		64
Total operating revenues		571		1,905
Operating Expenses:
Cost of natural gas		184		755
Cost of other sales		7		14
Other operations and maintenance		213		454
Depreciation and amortization		104		206
Merger-related expenses		53		56
Taxes other than income taxes		37		99
Total operating expenses		598		1,584
Operating Income (Loss)		(27)		321
Other Income and (Expense):
Earnings (loss) from equity method investments		1		2
Interest expense, net of amounts capitalized		(48)		(96)
Other income (expense), net		2		5
Total other income and (expense)		(45)		(89)
Earnings (Loss) Before Income Taxes		(72)		232
Income taxes (benefit)		(24)		87
Consolidated Net Income (Loss)		(48)		145
Net income attributable to noncontrolling interests		3		14
Net Income		$ (51)		$ 131