Statements of Comprehensive Income - MPC - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net Income (Loss)	$ 3,428	$ 2,309	$ 3,103
Qualifying hedges:
Reclassification adjustment for amounts included in net income, net of tax	73	96	(40)
Current period change	71	158	(75)
Comprehensive Income (Loss) Attributable to Parent	3,595	2,551	3,044
Mississippi Power
Net Income (Loss)	164	159	152
Qualifying hedges:
Reclassification adjustment for amounts included in net income, net of tax	0	1	1
Current period change	0	1	1
Comprehensive Income (Loss) Attributable to Parent	$ 164	$ 160	$ 153