Condensed Statements of Cash Flows (Unaudited) - APC - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Operating Activities:
Consolidated net income	$ 3,053	$ 3,566
Adjustments to reconcile net income to net cash provided from operating activities —
Depreciation and amortization, total	3,699	3,084
Deferred income taxes	(52)	608
Pension, postretirement, and other employee benefits	(397)	(322)
Settlement of asset retirement obligations	(444)	(314)
Retail fuel cost under recovery – long-term	(157)	(1,701)
Other, net	(67)	(119)
Changes in certain current assets and liabilities —
Receivables	524	(316)
Fossil fuel stock	(254)	(76)
Retail fuel cost under recovery	513	(104)
Other current assets	(32)	(310)
Accounts payable	(1,031)	805
Accrued taxes	376	167
Accrued compensation	(197)	(123)
Other current liabilities	66	(82)
Net cash provided from operating activities	5,740	5,017
Investing Activities:
Property additions	(6,561)	(5,502)
Nuclear decommissioning trust fund purchases	(885)	(858)
Nuclear decommissioning trust fund sales	879	854
Cost of removal, net of salvage	(421)	(518)
Change in construction payables, net	241	15
Other investing activities	(139)	(63)
Net cash used for investing activities	(6,721)	(5,952)
Financing Activities:
Payment of common stock dividends	(2,271)	(2,166)
Other financing activities	(141)	(235)
Net cash provided from financing activities	834	1,119
Net Change in Cash, Cash Equivalents, and Restricted Cash	(147)	184
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	2,037	1,829
Cash, Cash Equivalents, and Restricted Cash at End of Period	1,890	2,013
Supplemental Cash Flow Information:
Interest, net of amounts capitalized	1,694	1,425
Income taxes, net	11	160
Noncash transactions —
Accrued property additions at end of period	1,224	872
Right-of-use assets obtained under finance leases	3	114
Alabama Power
Operating Activities:
Consolidated net income	1,132	1,266
Adjustments to reconcile net income to net cash provided from operating activities —
Depreciation and amortization, total	1,158	817
Deferred income taxes	(210)	210
Pension, postretirement, and other employee benefits	(148)	(85)
Settlement of asset retirement obligations	(188)	(139)
Retail fuel cost under recovery – long-term	0	(413)
Other, net	(21)	(98)
Changes in certain current assets and liabilities —
Receivables	(108)	(296)
Fossil fuel stock	(113)	(40)
Retail fuel cost under recovery	334	(93)
Other current assets	(124)	(75)
Accounts payable	(358)	(22)
Accrued taxes	271	110
Other current liabilities	(103)	(70)
Net cash provided from operating activities	1,522	1,072
Investing Activities:
Property additions	(1,377)	(1,483)
Nuclear decommissioning trust fund purchases	(226)	(273)
Nuclear decommissioning trust fund sales	226	273
Cost of removal, net of salvage	(128)	(163)
Change in construction payables, net	(68)	36
Other investing activities	27	(31)
Net cash used for investing activities	(1,546)	(1,641)
Financing Activities:
Proceeds — Senior notes	200	1,700
Revenue bonds	326	0
Other long-term debt	28	0
Redemptions — Senior notes	0	(550)
Capital contributions from parent company	380	660
Payment of common stock dividends	(856)	(762)
Other financing activities	(12)	(81)
Net cash provided from financing activities	66	967
Net Change in Cash, Cash Equivalents, and Restricted Cash	42	398
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	687	1,060
Cash, Cash Equivalents, and Restricted Cash at End of Period	729	1,458
Supplemental Cash Flow Information:
Interest, net of amounts capitalized	329	278
Income taxes, net	152	178
Noncash transactions —
Accrued property additions at end of period	114	186
Right-of-use assets obtained under operating leases	28	7
Right-of-use assets obtained under finance leases	$ 3	$ 2