Condensed Balance Sheets (Unaudited) - MPC - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Current Assets:
Cash and cash equivalents	$ 713	$ 748
Receivables —
Customer accounts, net and Affiliated	2,191	2,030
Unbilled revenues	620	786
Other accounts and notes	512	519
Fossil fuel stock	995	943
Materials and supplies	2,063	1,989
Other regulatory assets	1,066	1,120
Other current assets	763	569
Total current assets	10,543	10,432
Property, Plant, and Equipment:
In service	129,228	128,428
Less: Accumulated depreciation	38,347	37,725
Plant in service, net of depreciation	90,881	90,703
Construction work in progress	8,225	7,784
Total property, plant, and equipment	100,470	99,844
Other Property and Investments:
Total other property and investments	10,100	9,986
Deferred Charges and Other Assets:
Deferred charges related to income taxes	888	886
Prepaid pension costs	2,184	2,079
Deferred under recovered fuel clause revenues	1,044	1,261
Regulatory assets – asset retirement obligations	5,379	5,459
Other regulatory assets, deferred	6,318	6,264
Other deferred charges and assets	1,578	1,468
Total deferred charges and other assets	19,007	19,069
Total Assets	140,120	139,331
Current Liabilities:
Securities due within one year	1,964	2,476
Notes payable	2,445	2,314
Accounts payable —
Accrued compensation	618	1,151
Asset retirement obligations	749	744
Other regulatory liabilities	169	141
Other current liabilities	1,108	1,029
Total current liabilities	11,458	13,467
Long-term Debt	59,361	57,210
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	11,195	10,990
Deferred credits related to income taxes	4,607	4,674
Employee benefit obligations	1,096	1,115
Asset retirement obligations, deferred	9,657	9,573
Other cost of removal obligations	1,989	1,957
Other regulatory liabilities, deferred	731	715
Other deferred credits and liabilities	1,074	1,031
Total deferred credits and other liabilities	33,687	33,429
Total Liabilities	104,506	104,106
Total Liabilities and Stockholders' Equity	140,120	139,331
Mississippi Power
Current Assets:
Cash and cash equivalents	38	38
Receivables —
Unbilled revenues	33	40
Other accounts and notes	59	20
Fossil fuel stock	60	47
Materials and supplies	89	89
Other regulatory assets	59	56
Other current assets	8	10
Total current assets	419	365
Property, Plant, and Equipment:
In service	5,587	5,523
Less: Accumulated depreciation	1,821	1,792
Plant in service, net of depreciation	3,766	3,731
Construction work in progress	172	203
Total property, plant, and equipment	3,938	3,934
Other Property and Investments:
Total other property and investments	156	158
Deferred Charges and Other Assets:
Deferred charges related to income taxes	28	28
Prepaid pension costs	102	99
Deferred under recovered fuel clause revenues	0	50
Regulatory assets – asset retirement obligations	245	244
Other regulatory assets, deferred	285	285
Accumulated deferred income taxes	93	96
Other deferred charges and assets	88	85
Total deferred charges and other assets	841	887
Total Assets	5,354	5,344
Current Liabilities:
Securities due within one year	201	201
Notes payable	8	0
Accounts payable —
Accrued taxes	58	117
Accrued compensation	22	43
Asset retirement obligations	29	29
Over recovered fuel clause revenues	0	27
Other regulatory liabilities	10	17
Other current liabilities	89	90
Total current liabilities	534	679
Long-term Debt	1,592	1,443
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	469	469
Deferred credits related to income taxes	228	229
Employee benefit obligations	67	67
Asset retirement obligations, deferred	137	139
Other cost of removal obligations	186	186
Other regulatory liabilities, deferred	95	92
Other deferred credits and liabilities	34	37
Total deferred credits and other liabilities	1,216	1,219
Total Liabilities	3,342	3,341
Total common stockholders' equity	2,012	2,003
Total Liabilities and Stockholders' Equity	5,354	5,344
Mississippi Power | Nonrelated Party
Receivables —
Customer accounts, net and Affiliated	57	36
Accounts payable —
Affiliated and Other	72	73
Mississippi Power | Related Party
Receivables —
Customer accounts, net and Affiliated	16	29
Accounts payable —
Affiliated and Other	$ 45	$ 82