Condensed Statements of Cash Flows (Unaudited) - APC - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Operating Activities:
Consolidated net income	$ 1,622	$ 2,079
Adjustments to reconcile net income to net cash provided from operating activities —
Depreciation and amortization, total	2,436	1,995
Deferred income taxes	(34)	240
Pension, postretirement, and other employee benefits	(245)	(211)
Settlement of asset retirement obligations	(276)	(198)
Other, net	(50)	34
Changes in certain current assets and liabilities —
Receivables	735	(637)
Fossil fuel stock	(308)	20
Prepayments	(64)	(90)
Other current assets	103	(101)
Accounts payable	(997)	703
Accrued compensation	(378)	(260)
Other current liabilities	101	(120)
Net cash provided from operating activities	2,900	3,579
Investing Activities:
Property additions	(3,898)	(3,213)
Nuclear decommissioning trust fund purchases	(726)	(628)
Nuclear decommissioning trust fund sales	720	624
Cost of removal, net of salvage	(270)	(377)
Change in construction payables, net	(140)	(3)
Other investing activities	(100)	18
Net cash used for investing activities	(4,288)	(3,460)
Financing Activities:
Payment of common stock dividends	(1,506)	(1,425)
Other financing activities	(121)	(219)
Net cash provided from (used for) financing activities	1,595	(213)
Net Change in Cash, Cash Equivalents, and Restricted Cash	207	(94)
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	2,037	1,829
Cash, Cash Equivalents, and Restricted Cash at End of Period	2,244	1,735
Supplemental Cash Flow Information:
Interest, net of amounts capitalized	1,043	836
Income taxes, net	(40)	157
Noncash transactions —
Accrued property additions at end of period	810	837
Right-of-use assets obtained under finance leases	1	2
Alabama Power
Operating Activities:
Consolidated net income	568	737
Adjustments to reconcile net income to net cash provided from operating activities —
Depreciation and amortization, total	770	494
Deferred income taxes	(142)	117
Pension, postretirement, and other employee benefits	(91)	(59)
Settlement of asset retirement obligations	(116)	(91)
Retail fuel cost under recovery – long-term	236	(191)
Other, net	(60)	(67)
Changes in certain current assets and liabilities —
Receivables	16	(296)
Fossil fuel stock	(117)	(2)
Prepayments	(61)	(69)
Other current assets	(112)	(31)
Accounts payable	(363)	14
Accrued taxes	183	(15)
Accrued compensation	(76)	(55)
Other current liabilities	21	24
Net cash provided from operating activities	656	510
Investing Activities:
Property additions	(865)	(759)
Nuclear decommissioning trust fund purchases	(150)	(180)
Nuclear decommissioning trust fund sales	150	180
Cost of removal, net of salvage	(83)	(104)
Change in construction payables, net	(79)	(8)
Other investing activities	16	(18)
Net cash used for investing activities	(1,011)	(889)
Financing Activities:
Proceeds — Senior notes	200	700
Other long-term debt	17	0
Senior notes	0	(550)
Capital contributions from parent company	352	656
Payment of common stock dividends	(571)	(508)
Other financing activities	(9)	(71)
Net cash provided from (used for) financing activities	(11)	227
Net Change in Cash, Cash Equivalents, and Restricted Cash	(366)	(152)
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	687	1,060
Cash, Cash Equivalents, and Restricted Cash at End of Period	321	908
Supplemental Cash Flow Information:
Interest, net of amounts capitalized	192	166
Income taxes, net	52	192
Noncash transactions —
Accrued property additions at end of period	103	141
Right-of-use assets obtained under operating leases	21	5
Right-of-use assets obtained under finance leases	$ 1	$ 1