Balance Sheets - MPC - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Current Assets:
Cash and cash equivalents	$ 1,798	$ 1,065
Receivables —
Customer accounts	1,806	1,753
Unbilled revenues	711	672
Other accounts and notes	523	512
Fossil fuel for generation	450	550
Materials and supplies	1,543	1,478
Other regulatory assets	653	810
Other current assets	231	282
Total current assets	8,965	8,617
Property, Plant, and Equipment:
In service	115,592	110,516
Less: Accumulated depreciation	34,079	32,397
Plant in service, net of depreciation	81,513	78,119
Construction work in progress	8,771	8,697
Total property, plant, and equipment	91,108	87,634
Other Property and Investments:
Total other property and investments	10,202	10,386
Deferred Charges and Other Assets:
Deferred charges related to income taxes	824	796
Regulatory assets – asset retirement obligations, deferred	5,466	4,934
Other regulatory assets, deferred	5,577	7,198
Other deferred charges and assets	1,776	1,288
Total deferred charges and other assets	17,259	16,298
Total Assets	127,534	122,935
Current Liabilities:
Securities due within one year	2,157	3,507
Notes payable	1,440	609
Accounts payable —
Accrued interest	533	513
Accrued compensation	1,070	1,025
Asset retirement obligations	697	585
Other regulatory liabilities	563	509
Other current liabilities	872	968
Total current liabilities	10,921	12,079
Long-Term Debt	50,120	45,073
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	8,862	8,175
Deferred credits related to income taxes	5,401	5,767
Employee benefit obligations	1,550	2,213
Asset retirement obligations, deferred	10,990	10,099
Other cost of removal obligations	2,103	2,211
Other regulatory liabilities, deferred	485	251
Other deferred credits and liabilities	816	696
Total deferred credits and other liabilities	33,926	33,258
Total Liabilities	94,967	90,410
Common Stockholders' Equity:
Common stock	5,279	5,268
Paid-in capital	11,950	11,834
Retained earnings (accumulated deficit)	10,929	11,311
Accumulated other comprehensive loss	(237)	(395)
Total common stockholders' equity	27,874	27,972
Total Liabilities and Stockholders' Equity	127,534	122,935
Commitments and Contingent Matters (See notes)
Mississippi Power
Current Assets:
Cash and cash equivalents	61	39
Receivables —
Customer accounts	37	34
Unbilled revenues	34	38
Affiliated	29	32
Other accounts and notes	28	32
Fossil fuel for generation	28	24
Materials and supplies	70	65
Other regulatory assets	54	60
Other current assets	41	20
Total current assets	382	344
Property, Plant, and Equipment:
In service	5,106	5,011
Less: Accumulated depreciation	1,591	1,545
Plant in service, net of depreciation	3,515	3,466
Construction work in progress	127	146
Total property, plant, and equipment	3,642	3,612
Other Property and Investments:
Total other property and investments	179	151
Deferred Charges and Other Assets:
Deferred charges related to income taxes	31	32
Prepaid pension costs	79	0
Regulatory assets – asset retirement obligations, deferred	232	201
Other regulatory assets, deferred	317	388
Accumulated deferred income taxes	118	129
Other deferred charges and assets	100	55
Total deferred charges and other assets	877	805
Total Assets	5,080	4,912
Current Liabilities:
Securities due within one year	1	406
Notes payable	0	25
Accounts payable —
Affiliated	81	63
Other	47	109
Accrued taxes	120	114
Accrued interest	16	15
Accrued compensation	36	34
Asset retirement obligations	30	27
Over recovered regulatory clause liabilities	0	34
Other regulatory liabilities	59	49
Other current liabilities	49	40
Total current liabilities	439	916
Long-Term Debt	1,510	1,013
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	464	447
Deferred credits related to income taxes	269	287
Employee benefit obligations	88	113
Asset retirement obligations, deferred	160	150
Other cost of removal obligations	195	194
Other regulatory liabilities, deferred	64	15
Other deferred credits and liabilities	24	35
Total deferred credits and other liabilities	1,264	1,241
Total Liabilities	3,213	3,170
Common Stockholders' Equity:
Common stock	38	38
Paid-in capital	4,582	4,460
Retained earnings (accumulated deficit)	(2,753)	(2,754)
Accumulated other comprehensive loss	0	(2)
Total common stockholders' equity	1,867	1,742
Total Liabilities and Stockholders' Equity	5,080	4,912
Commitments and Contingent Matters (See notes)