Condensed Statements of Cash Flows (Unaudited) - MPC - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Operating Activities:
Net income	$ 2,214	$ 2,332
Adjustments to reconcile net income to net cash provided from operating activities —
Depreciation and amortization, total	2,860	2,572
Deferred income taxes	453	247
Pension, postretirement, and other employee benefits	(253)	(232)
Settlement of asset retirement obligations	(285)	(267)
Other, net	76	(116)
Changes in certain current assets and liabilities —
Receivables	(130)	(284)
Retail fuel cost under recovery	158	421
Other current assets	61	(86)
Accounts payable	(695)	(247)
Accrued taxes	(245)	(19)
Accrued compensation	(421)	(372)
Other current liabilities	26	204
Net cash provided from operating activities	3,431	3,999
Investing Activities:
Property additions	(5,237)	(3,895)
Cost of removal, net of salvage	(304)	(282)
Change in construction payables, net of joint owner portion	(42)	(217)
Other investing activities	(153)	(172)
Net cash used for investing activities	(5,734)	(4,222)
Financing Activities:
Payment of common stock dividends	(1,494)	(1,487)
Other financing activities	(150)	(135)
Net cash provided from financing activities	2,467	513
Net Change in Cash, Cash Equivalents, and Restricted Cash	164	290
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	1,101	921
Cash, Cash Equivalents, and Restricted Cash at End of Period	1,265	1,211
Supplemental Cash Flow Information:
Interest	1,287	1,235
Income taxes, net (excludes credit transfers)	199	62
Noncash transactions —
Accrued property additions at end of period	1,091	805
Mississippi Power
Operating Activities:
Net income	114	111
Adjustments to reconcile net income to net cash provided from operating activities —
Depreciation and amortization, total	115	101
Deferred income taxes	4	(5)
Pension, postretirement, and other employee benefits	(8)	(8)
Settlement of asset retirement obligations	(7)	(9)
Other, net	(7)	7
Changes in certain current assets and liabilities —
Receivables	(26)	(26)
Retail fuel cost under recovery	(28)	7
Fossil fuel stock	20	(22)
Prepaid income taxes	9	0
Other current assets	(1)	(4)
Accounts payable	(22)	(16)
Accrued taxes	(49)	(41)
Accrued compensation	(22)	(16)
Over recovered regulatory clause revenues	(15)	7
Other current liabilities	1	(1)
Net cash provided from operating activities	78	85
Investing Activities:
Property additions	(166)	(165)
Contributions in aid of construction	57	0
Cost of removal, net of salvage	(17)	(21)
Change in construction payables, net of joint owner portion	(5)	(20)
Payments pursuant to LTSAs	(11)	(10)
Other investing activities	(3)	(2)
Net cash used for investing activities	(145)	(218)
Financing Activities:
Increase in notes payable, net	18	102
Proceeds — Senior notes	100	250
Redemptions — Senior notes	0	(200)
Capital contributions from parent company	57	58
Payment of common stock dividends	(97)	(94)
Other financing activities	(2)	(2)
Net cash provided from financing activities	76	114
Net Change in Cash, Cash Equivalents, and Restricted Cash	9	(19)
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	13	38
Cash, Cash Equivalents, and Restricted Cash at End of Period	22	19
Supplemental Cash Flow Information:
Interest	37	38
Income taxes, net (excludes credit transfers)	21	24
Noncash transactions —
Accrued property additions at end of period	$ 30	$ 16