Balance Sheets - MPC - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Current Assets:
Cash and cash equivalents	$ 748	$ 1,917
Receivables —
Customer accounts, net and affiliated	2,030	2,128
Unbilled revenues	786	1,012
Other accounts and notes	519	637
Fossil fuel stock	943	575
Materials and supplies	1,989	1,664
Other regulatory assets	1,120	860
Other current assets	533	344
Total current assets	10,432	10,416
Property, Plant, and Equipment:
In service	128,428	117,529
Less: Accumulated depreciation	37,725	35,297
Plant in service, net of depreciation	90,703	82,232
Construction work in progress	7,784	10,896
Total property, plant, and equipment	99,844	94,570
Other Property and Investments:
Total other property and investments	9,986	9,757
Deferred Charges and Other Assets:
Deferred charges related to income taxes	886	866
Prepaid pension costs	2,079	2,290
Deferred under recovered retail fuel clause revenues	1,261	2,056
Regulatory assets – asset retirement obligations	5,459	5,764
Other regulatory assets, deferred	6,264	5,918
Other deferred charges and assets	1,468	1,485
Total deferred charges and other assets	19,069	20,148
Total Assets	139,331	134,891
Current Liabilities:
Securities due within one year	2,476	4,285
Accounts payable —
Accrued compensation	1,151	1,127
Asset retirement obligations	744	694
Other regulatory liabilities	141	382
Other current liabilities	1,029	787
Total current liabilities	13,467	15,724
Long-Term Debt	57,210	50,656
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	10,990	10,036
Deferred credits related to income taxes	4,674	5,235
Employee benefit obligations	1,115	1,238
Asset retirement obligations, deferred	9,573	10,146
Other cost of removal obligations	1,957	1,903
Other regulatory liabilities, deferred	715	733
Other deferred credits and liabilities	1,031	1,167
Total deferred credits and other liabilities	33,429	33,979
Total Liabilities	104,106	100,359
Common Stockholders' Equity:
Common stock	5,423	5,417
Paid-in capital	13,775	13,673
Accumulated deficit	12,482	11,538
Total common stockholders' equity	31,444	30,408
Total Liabilities and Stockholders' Equity	139,331	134,891
Commitments and Contingent Matters
Mississippi Power
Current Assets:
Cash and cash equivalents	38	59
Receivables —
Customer accounts, net and affiliated	36	47
Unbilled revenues	40	47
Other accounts and notes	20	35
Fossil fuel stock	47	44
Materials and supplies	89	80
Other regulatory assets	56	72
Other current assets	10	38
Total current assets	365	504
Property, Plant, and Equipment:
In service	5,523	5,254
Less: Accumulated depreciation	1,792	1,689
Plant in service, net of depreciation	3,731	3,565
Construction work in progress	203	208
Total property, plant, and equipment	3,934	3,773
Other Property and Investments:
Total other property and investments	158	167
Deferred Charges and Other Assets:
Deferred charges related to income taxes	28	30
Prepaid pension costs	99	109
Regulatory assets – asset retirement obligations	244	239
Other regulatory assets, deferred	285	249
Accumulated deferred income taxes	96	107
Other deferred charges and assets	85	94
Total deferred charges and other assets	887	828
Total Assets	5,344	5,272
Current Liabilities:
Securities due within one year	201	1
Accounts payable —
Affiliated and other	73	106
Accrued taxes	117	124
Accrued compensation	43	37
Asset retirement obligations	29	37
Over recovered retail fuel clause revenues	27	0
Other regulatory liabilities	17	43
Other current liabilities	90	85
Total current liabilities	679	554
Long-Term Debt	1,443	1,544
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	469	466
Deferred credits related to income taxes	229	253
Employee benefit obligations	67	69
Asset retirement obligations, deferred	139	142
Other cost of removal obligations	186	196
Other regulatory liabilities, deferred	92	96
Other deferred credits and liabilities	37	21
Total deferred credits and other liabilities	1,219	1,243
Total Liabilities	3,341	3,341
Common Stockholders' Equity:
Common stock	38	38
Paid-in capital	4,721	4,652
Accumulated deficit	(2,756)	(2,759)
Total common stockholders' equity	2,003	1,931
Total Liabilities and Stockholders' Equity	5,344	5,272
Commitments and Contingent Matters
Mississippi Power | Related Party
Receivables —
Customer accounts, net and affiliated	29	82
Accounts payable —
Affiliated and other	82	121
Alabama Power
Current Assets:
Cash and cash equivalents	324	687
Receivables —
Customer accounts, net and affiliated	513	431
Unbilled revenues	191	174
Other accounts and notes	109	153
Fossil fuel stock	394	229
Materials and supplies	655	557
Other regulatory assets	385	372
Other current assets	142	67
Total current assets	3,077	2,924
Property, Plant, and Equipment:
In service	35,429	33,472
Less: Accumulated depreciation	11,131	10,470
Plant in service, net of depreciation	24,298	23,002
Construction work in progress	1,095	1,526
Total property, plant, and equipment	26,145	25,366
Other Property and Investments:
Total other property and investments	1,468	1,308
Deferred Charges and Other Assets:
Deferred charges related to income taxes	262	250
Deferred under recovered retail fuel clause revenues	50	0
Regulatory assets – asset retirement obligations	1,810	1,845
Other regulatory assets, deferred	1,858	2,107
Other deferred charges and assets	414	442
Total deferred charges and other assets	5,090	5,372
Total Assets	35,780	34,970
Current Liabilities:
Securities due within one year	223	301
Accounts payable —
Affiliated and other	630	641
Accrued taxes	51	57
Accrued compensation	222	229
Asset retirement obligations	346	330
Other regulatory liabilities	44	96
Other current liabilities	191	91
Total current liabilities	2,304	2,414
Long-Term Debt	10,960	10,329
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	4,170	3,981
Deferred credits related to income taxes	1,506	1,925
Employee benefit obligations	155	145
Asset retirement obligations, deferred	3,812	3,957
Other regulatory liabilities, deferred	291	315
Other deferred credits and liabilities	94	69
Total deferred credits and other liabilities	10,183	10,540
Total Liabilities	23,447	23,283
Common Stockholders' Equity:
Common stock	1,222	1,222
Paid-in capital	7,125	6,710
Accumulated deficit	3,993	3,764
Total common stockholders' equity	12,333	11,687
Total Liabilities and Stockholders' Equity	35,780	34,970
Commitments and Contingent Matters
Alabama Power | Related Party
Receivables —
Customer accounts, net and affiliated	72	101
Accounts payable —
Affiliated and other	$ 330	$ 443