Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Current Assets:
Cash and cash equivalents	$ 1,383	$ 1,396
Receivables —
Customer accounts receivable	1,654	1,726
Energy marketing receivables	361	801
Unbilled revenues	583	654
Under recovered fuel clause revenues	69	115
Other accounts and notes receivable	756	813
Accumulated provision for uncollectible accounts	(50)	(50)
Materials and supplies	1,440	1,465
Fossil fuel for generation	435	405
Natural gas for sale	268	524
Prepaid expenses	543	432
Assets from risk management activities, net of collateral	107	222
Other regulatory assets	607	525
Assets held for sale	58	393
Other current assets	138	162
Total current assets	8,352	9,583
Property, Plant, and Equipment:
In service	103,428	103,706
Less: Accumulated depreciation	30,693	31,038
Plant in service, net of depreciation	72,735	72,668
Nuclear fuel, at amortized cost	871	875
Construction work in progress	7,568	7,254
Total property, plant, and equipment	81,174	80,797
Other Property and Investments:
Goodwill	5,282	5,315
Equity investments in unconsolidated subsidiaries	1,557	1,580
Other intangible assets, net of amortization	550	613
Nuclear decommissioning trusts, at fair value	1,942	1,721
Leveraged leases	813	798
Miscellaneous property and investments	505	269
Total other property and investments	10,649	10,296
Deferred Charges and Other Assets:
Operating lease right-of-use assets, net of amortization	1,862
Deferred charges related to income taxes	794	794
Unamortized loss on reacquired debt	313	323
Regulatory assets – asset retirement obligations	4,062	2,933
Other regulatory assets, deferred	5,835	5,375
Assets held for sale, deferred	685	5,350
Other deferred charges and assets	1,141	1,463
Total deferred charges and other assets	14,692	16,238
Total Assets	114,867	116,914
Current Liabilities:
Securities due within one year	3,148	3,198
Notes payable	1,398	2,915
Energy marketing trade payables	393	856
Accounts payable —
Accounts payable	1,978	2,580
Customer deposits	489	522
Accrued taxes —
Accrued income taxes	171	21
Other accrued taxes	501	635
Accrued interest	455	472
Accrued compensation	676	1,030
Asset retirement obligations	429	404
Other regulatory liabilities	304	376
Liabilities held for sale	36	425
Operating lease obligations	228
Other current liabilities	793	852
Total current liabilities	10,999	14,286
Long-term Debt	39,682	40,736
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	7,728	6,558
Deferred credits related to income taxes	6,386	6,460
Accumulated deferred ITCs	2,283	2,372
Employee benefit obligations	2,058	2,147
Operating lease obligations, deferred	1,702
Asset retirement obligations, deferred	9,478	8,990
Accrued environmental remediation	247	268
Other cost of removal obligations	2,283	2,297
Other regulatory liabilities, deferred	176	169
Liabilities held for sale, deferred	39	2,836
Other deferred credits and liabilities	384	465
Total deferred credits and other liabilities	32,764	32,562
Total Liabilities	83,445	87,584
Redeemable Preferred Stock of Subsidiaries	291	291
Total stockholders' equity	31,131	29,039
Total Liabilities and Stockholders' Equity	114,867	116,914
ALABAMA POWER CO
Current Assets:
Cash and cash equivalents	623	313
Receivables —
Customer accounts receivable	432	403
Unbilled revenues	173	150
Other accounts and notes receivable	55	51
Accumulated provision for uncollectible accounts	(10)	(10)
Affiliated	38	94
Materials and supplies	530	546
Fossil fuel for generation	143	141
Prepaid expenses	170	66
Other regulatory assets	204	137
Other current assets	26	18
Total current assets	2,384	1,909
Property, Plant, and Equipment:
In service	29,070	30,402
Less: Accumulated depreciation	9,397	9,988
Plant in service, net of depreciation	19,673	20,414
Nuclear fuel, at amortized cost	322	324
Construction work in progress	1,097	1,113
Total property, plant, and equipment	21,092	21,851
Other Property and Investments:
Equity investments in unconsolidated subsidiaries	64	65
Nuclear decommissioning trusts, at fair value	964	847
Miscellaneous property and investments	129	127
Total other property and investments	1,157	1,039
Deferred Charges and Other Assets:
Operating lease right-of-use assets, net of amortization	152
Deferred charges related to income taxes	240	240
Regulatory assets – asset retirement obligations	1,016	147
Other regulatory assets, deferred	1,824	1,240
Other deferred charges and assets	177	188
Deferred under recovered regulatory clause revenues	25	116
Total deferred charges and other assets	3,434	1,931
Total Assets	28,067	26,730
Current Liabilities:
Securities due within one year	1	201
Accounts payable —
Affiliated	321	364
Other	334	614
Customer deposits	98	96
Accrued taxes —
Other accrued taxes	102	44
Accrued interest	88	89
Accrued compensation	140	227
Asset retirement obligations	156	163
Operating lease obligations	48
Other current liabilities	155	161
Total current liabilities	1,395	1,959
Long-term Debt	7,926	7,923
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	3,117	2,962
Deferred credits related to income taxes	2,006	2,027
Accumulated deferred ITCs	103	106
Employee benefit obligations	309	314
Operating lease obligations, deferred	137
Asset retirement obligations, deferred	3,389	3,047
Other cost of removal obligations	464	497
Other regulatory liabilities, deferred	69	69
Other deferred credits and liabilities	32	58
Total deferred credits and other liabilities	9,626	9,080
Total Liabilities	18,947	18,962
Redeemable Preferred Stock	291	291
Total stockholders' equity	8,829	7,477
Total Liabilities and Stockholders' Equity	28,067	26,730
GEORGIA POWER CO
Current Assets:
Cash and cash equivalents	10	4
Restricted cash and cash equivalents	0	108
Receivables —
Customer accounts receivable	603	591
Unbilled revenues	267	208
Under recovered fuel clause revenues	69	115
Other accounts and notes receivable	240	80
Accumulated provision for uncollectible accounts	(2)	(2)
Affiliated	16	39
Joint owner accounts receivable	178	170
Materials and supplies	513	519
Fossil fuel for generation	257	231
Prepaid expenses	68	142
Other regulatory assets	240	199
Other current assets	58	70
Total current assets	2,517	2,474
Property, Plant, and Equipment:
In service	38,517	37,675
Less: Accumulated depreciation	12,140	12,096
Plant in service, net of depreciation	26,377	25,579
Nuclear fuel, at amortized cost	549	550
Construction work in progress	5,193	4,833
Total property, plant, and equipment	32,119	30,962
Other Property and Investments:
Equity investments in unconsolidated subsidiaries	51	51
Nuclear decommissioning trusts, at fair value	978	873
Miscellaneous property and investments	74	72
Total other property and investments	1,103	996
Deferred Charges and Other Assets:
Operating lease right-of-use assets, net of amortization	1,492
Deferred charges related to income taxes	518	517
Regulatory assets – asset retirement obligations	2,839	2,644
Other regulatory assets, deferred	2,272	2,258
Other deferred charges and assets	379	514
Total deferred charges and other assets	7,500	5,933
Total Assets	43,239	40,365
Current Liabilities:
Securities due within one year	988	617
Notes payable	555	294
Accounts payable —
Affiliated	477	575
Other	901	890
Customer deposits	282	276
Accrued taxes —
Other accrued taxes	238	377
Accrued interest	112	105
Accrued compensation	163	221
Asset retirement obligations	240	202
Other regulatory liabilities	145	169
Operating lease obligations	140
Other current liabilities	383	183
Total current liabilities	4,484	3,909
Long-term Debt	10,150	9,364
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	3,212	3,062
Deferred credits related to income taxes	3,078	3,080
Accumulated deferred ITCs	257	262
Employee benefit obligations	550	599
Operating lease obligations, deferred	1,377
Asset retirement obligations, deferred	5,643	5,627
Other deferred credits and liabilities	172	139
Total deferred credits and other liabilities	14,289	12,769
Total Liabilities	28,923	26,042
Total stockholders' equity	14,316	14,323
Total Liabilities and Stockholders' Equity	43,239	40,365
MISSISSIPPI POWER CO
Current Assets:
Cash and cash equivalents	199	293
Receivables —
Customer accounts receivable	38	34
Unbilled revenues	44	41
Other accounts and notes receivable	38	31
Affiliated	17	21
Materials and supplies	52	53
Fossil fuel for generation	23	20
Other regulatory assets	107	116
Other current assets	13	19
Total current assets	531	628
Property, Plant, and Equipment:
In service	4,800	4,900
Less: Accumulated depreciation	1,427	1,429
Plant in service, net of depreciation	3,373	3,471
Construction work in progress	113	103
Total property, plant, and equipment	3,486	3,574
Other Property and Investments:
Total other property and investments	124	24
Deferred Charges and Other Assets:
Operating lease right-of-use assets, net of amortization	7
Deferred charges related to income taxes	33	33
Regulatory assets – asset retirement obligations	207	143
Other regulatory assets, deferred	328	332
Other deferred charges and assets	20	2
Accumulated deferred income taxes	145	150
Total deferred charges and other assets	733	660
Total Assets	4,874	4,886
Current Liabilities:
Securities due within one year	300	40
Accounts payable —
Affiliated	60	60
Other	49	90
Accrued taxes —
Other accrued taxes	52	95
Accrued interest	15	15
Accrued compensation	23	38
Asset retirement obligations	27	34
Other regulatory liabilities	20	12
Operating lease obligations	2
Other current liabilities	52	28
Accrued plant closure costs	24	29
Over recovered regulatory clause liabilities	12	14
Total current liabilities	634	455
Long-term Debt	1,318	1,539
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	366	378
Deferred credits related to income taxes	362	382
Employee benefit obligations	110	115
Operating lease obligations, deferred	5
Asset retirement obligations, deferred	177	126
Other cost of removal obligations	189	185
Other regulatory liabilities, deferred	79	81
Other deferred credits and liabilities	22	16
Total deferred credits and other liabilities	1,305	1,283
Total Liabilities	3,257	3,277
Total stockholders' equity	1,617	1,609
Total Liabilities and Stockholders' Equity	4,874	4,886
SOUTHERN POWER CO
Current Assets:
Cash and cash equivalents	370	181
Receivables —
Customer accounts receivable	153	111
Other accounts and notes receivable	59	116
Affiliated	49	55
Materials and supplies	185	220
Other current assets	33	37
Prepaid income taxes	489	25
Total current assets	1,338	745
Property, Plant, and Equipment:
In service	12,862	13,271
Less: Accumulated depreciation	2,255	2,171
Plant in service, net of depreciation	10,607	11,100
Construction work in progress	419	430
Total property, plant, and equipment	11,026	11,530
Other Property and Investments:
Miscellaneous property and investments	144	0
Intangible assets, net of amortization	313	345
Total other property and investments	457	345
Deferred Charges and Other Assets:
Operating lease right-of-use assets, net of amortization	370
Assets held for sale, deferred	599	576
Other deferred charges and assets	289	373
Prepaid LTSAs	107	98
Accumulated deferred income taxes	296	1,186
Income taxes receivable, non-current	36	30
Total deferred charges and other assets	1,697	2,263
Total Assets	14,518	14,883
Current Liabilities:
Securities due within one year	899	599
Notes payable	0	100
Accounts payable —
Affiliated	72	92
Other	60	77
Accrued taxes —
Accrued income taxes	23	6
Accrued interest	23	36
Liabilities held for sale	10	15
Operating lease obligations	22
Other current liabilities	116	106
Total current liabilities	1,203	1,031
Long-term Debt	4,112	4,418
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	106	105
Accumulated deferred ITCs	1,737	1,832
Operating lease obligations, deferred	373
Other deferred credits and liabilities	169	213
Total deferred credits and other liabilities	2,385	2,150
Total Liabilities	7,700	7,599
Total stockholders' equity	6,818	7,284
Total Liabilities and Stockholders' Equity	14,518	14,883
SOUTHERN Co GAS
Current Assets:
Cash and cash equivalents	56	64
Receivables —
Customer accounts receivable	281	370
Energy marketing receivables	361	801
Unbilled revenues	63	213
Other accounts and notes receivable	100	142
Accumulated provision for uncollectible accounts	(31)	(30)
Affiliated	10	11
Natural gas for sale	268	524
Prepaid expenses	120	118
Assets from risk management activities, net of collateral	101	219
Other regulatory assets	56	73
Other current assets	44	50
Total current assets	1,429	2,555
Property, Plant, and Equipment:
In service	15,680	15,177
Less: Accumulated depreciation	4,522	4,400
Plant in service, net of depreciation	11,158	10,777
Construction work in progress	628	580
Total property, plant, and equipment	11,786	11,357
Other Property and Investments:
Goodwill	5,015	5,015
Equity investments in unconsolidated subsidiaries	1,509	1,538
Other intangible assets, net of amortization	85	101
Miscellaneous property and investments	20	20
Total other property and investments	6,629	6,674
Deferred Charges and Other Assets:
Operating lease right-of-use assets, net of amortization	95
Other regulatory assets, deferred	636	669
Other deferred charges and assets	186	193
Total deferred charges and other assets	917	862
Total Assets	20,761	21,448
Current Liabilities:
Securities due within one year	351	357
Notes payable	492	650
Energy marketing trade payables	393	856
Accounts payable —
Affiliated	38	45
Other	294	402
Customer deposits	92	133
Accrued taxes —
Accrued income taxes	17	66
Other accrued taxes	70	75
Accrued interest	57	55
Accrued compensation	64	100
Other regulatory liabilities	97	79
Operating lease obligations	15
Other current liabilities	124	130
Liabilities from risk management activities, net of collateral	22	76
Total current liabilities	2,111	3,024
Long-term Debt	5,565	5,583
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	1,088	1,016
Deferred credits related to income taxes	910	940
Employee benefit obligations	354	357
Operating lease obligations, deferred	79
Accrued environmental remediation	247	268
Other cost of removal obligations	1,598	1,585
Other deferred credits and liabilities	50	105
Total deferred credits and other liabilities	4,326	4,271
Total Liabilities	12,002	12,878
Total stockholders' equity	8,759	8,570
Total Liabilities and Stockholders' Equity	$ 20,761	$ 21,448