Statements of Income - MPC - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Revenues:
Total operating revenues	$ 25,253	$ 29,279	$ 23,113
Operating Expenses:
Other operations and maintenance	6,093	6,573	5,902
Depreciation and amortization	4,525	3,663	3,565
Taxes other than income taxes	1,425	1,411	1,290
Total operating expenses	19,427	23,909	19,415
Operating Income	5,826	5,370	3,698
Other Income and (Expense):
Interest expense, net of amounts capitalized	(2,446)	(2,022)	(1,837)
Other income (expense), net	553	500	449
Total other income and (expense)	(1,481)	(1,147)	(1,122)
Earnings Before Income Taxes	4,345	4,223	2,576
Income taxes	496	795	267
Net Income	3,849	3,428	2,309
Retail revenues
Operating Revenues:
Total operating revenues	16,343	18,197	14,852
Other revenues
Operating Revenues:
Total operating revenues	949	732	708
Operating Expenses:
Fuel and purchased power	560	396	357
Mississippi Power
Operating Revenues:
Total operating revenues	1,474	1,694	1,322
Operating Expenses:
Other operations and maintenance	362	376	313
Depreciation and amortization	190	181	180
Taxes other than income taxes	124	124	128
Total operating expenses	1,214	1,470	1,117
Operating Income	260	224	205
Other Income and (Expense):
Interest expense, net of amounts capitalized	(71)	(56)	(60)
Other income (expense), net	35	33	35
Total other income and (expense)	(36)	(23)	(25)
Earnings Before Income Taxes	224	201	180
Income taxes	36	37	21
Net Income	188	164	159
Mississippi Power | Retail revenues
Operating Revenues:
Total operating revenues	963	935	875
Mississippi Power | Wholesale revenues, non-affiliates
Operating Revenues:
Total operating revenues	272	252	230
Mississippi Power | Wholesale revenues, affiliates
Operating Revenues:
Total operating revenues	200	460	188
Mississippi Power | Other revenues
Operating Revenues:
Total operating revenues	39	47	29
Mississippi Power | Fuel and purchased power
Operating Expenses:
Fuel and purchased power	$ 538	$ 789	$ 496