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Condensed Balance Sheets (Unaudited) - MPC - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Current Assets:    
Cash and cash equivalents $ 981 $ 1,639
Receivables —    
Customer accounts, net and Affiliated 2,405 2,251
Unbilled revenues 740 931
Other accounts and notes 524 655
Fossil fuel stock 727 735
Materials and supplies 2,297 2,202
Other regulatory assets 706 709
Other current assets 433 424
Total current assets 9,961 10,917
Property, Plant, and Equipment:    
In service 149,086 146,114
Less: Accumulated depreciation 45,186 43,483
Plant in service, net of depreciation 103,900 102,631
Construction work in progress 11,282 10,534
Total property, plant, and equipment 116,102 114,369
Other Property and Investments:    
Total other property and investments 10,414 10,440
Deferred Charges and Other Assets:    
Deferred charges related to income taxes 1,026 948
Prepaid pension costs 3,369 3,257
Deferred under recovered fuel clause revenues 210 252
Regulatory assets – asset retirement obligations 5,198 5,129
Other regulatory assets, deferred 7,683 7,427
Other deferred charges and assets 1,534 1,436
Total deferred charges and other assets 20,554 19,994
Total Assets 157,031 155,720
Current Liabilities:    
Securities due within one year 5,701 6,220
Notes payable 1,673 722
Accounts payable —    
Accrued compensation 761 1,418
Asset retirement obligations 659 662
Other regulatory liabilities 228 240
Other current liabilities 1,191 1,157
Total current liabilities 15,318 16,888
Long-term Debt 67,148 65,649
Deferred Credits and Other Liabilities:    
Accumulated deferred income taxes 12,381 12,133
Deferred credits related to income taxes 4,648 4,712
Employee benefit obligations 941 980
Asset retirement obligations, deferred 8,907 8,939
Other cost of removal obligations 2,054 2,036
Other regulatory liabilities, deferred 770 722
Other deferred credits and liabilities 1,625 1,505
Total deferred credits and other liabilities 34,653 34,316
Total Liabilities 117,119 116,853
Total Liabilities and Stockholders' Equity 157,031 155,720
Mississippi Power    
Current Assets:    
Cash and cash equivalents 19 26
Receivables —    
Unbilled revenues 39 44
Other accounts and notes 24 22
Fossil fuel stock 48 46
Materials and supplies 103 101
Other regulatory assets 52 49
Other current assets 7 10
Total current assets 436 374
Property, Plant, and Equipment:    
In service 6,057 5,972
Less: Accumulated depreciation 1,990 1,922
Plant in service, net of depreciation 4,067 4,050
Construction work in progress 248 238
Total property, plant, and equipment 4,315 4,288
Other Property and Investments:    
Total other property and investments 142 143
Deferred Charges and Other Assets:    
Deferred charges related to income taxes 25 25
Prepaid pension costs 157 151
Deferred under recovered fuel clause revenues 0 40
Regulatory assets – asset retirement obligations 228 229
Other regulatory assets, deferred 259 255
Accumulated deferred income taxes 62 66
Other deferred charges and assets 79 66
Total deferred charges and other assets 810 832
Total Assets 5,703 5,637
Current Liabilities:    
Securities due within one year 65 66
Notes payable 32 0
Accounts payable —    
Accrued taxes 52 125
Accrued compensation 25 49
Asset retirement obligations 19 21
Other regulatory liabilities 12 20
Other current liabilities 87 92
Total current liabilities 416 520
Long-term Debt 1,795 1,720
Deferred Credits and Other Liabilities:    
Accumulated deferred income taxes 499 491
Deferred credits related to income taxes 209 211
Employee benefit obligations 65 67
Asset retirement obligations, deferred 100 103
Other cost of removal obligations 110 115
Other regulatory liabilities, deferred 140 141
Other deferred credits and liabilities 78 80
Total deferred credits and other liabilities 1,201 1,208
Total Liabilities 3,412 3,448
Total common stockholders' equity 2,291 2,189
Total Liabilities and Stockholders' Equity 5,703 5,637
Mississippi Power | Nonrelated Party    
Receivables —    
Customer accounts, net and Affiliated 113 50
Accounts payable —    
Affiliated and Other 60 77
Mississippi Power | Related Party    
Receivables —    
Customer accounts, net and Affiliated 31 26
Accounts payable —    
Affiliated and Other $ 64 $ 70