Condensed Consolidated Balance Sheets (Unaudited) - Southern - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Current Assets:
Cash and cash equivalents	$ 713	$ 748
Receivables —
Customer accounts	2,191	2,030
Unbilled revenues	620	786
Under recovered retail fuel clause revenues	701	696
Other accounts and notes	512	519
Accumulated provision for uncollectible accounts	(78)	(68)
Materials and supplies	2,063	1,989
Fossil fuel for generation	995	943
Natural gas for sale	210	420
Prepaid expenses	474	406
Regulatory assets – asset retirement obligations	313	274
Other regulatory assets	1,066	1,120
Other current assets	763	569
Total current assets	10,543	10,432
Property, Plant, and Equipment:
In service	129,228	128,428
Less: Accumulated depreciation	38,347	37,725
Plant in service, net of depreciation	90,881	90,703
Other utility plant, net	483	499
Nuclear fuel, at amortized cost	881	858
Construction work in progress	8,225	7,784
Total property, plant, and equipment	100,470	99,844
Other Property and Investments:
Goodwill	5,161	5,161
Nuclear decommissioning trusts, at fair value	2,512	2,424
Equity investments in unconsolidated subsidiaries	1,395	1,368
Other intangible assets, net of amortization	359	368
Miscellaneous property and investments	673	665
Total other property and investments	10,100	9,986
Deferred Charges and Other Assets:
Operating lease right-of-use assets, net of amortization	1,400	1,432
Deferred charges related to income taxes	888	886
Prepaid pension costs	2,184	2,079
Unamortized loss on reacquired debt	216	220
Deferred under recovered fuel clause revenues	1,044	1,261
Regulatory assets – asset retirement obligations, deferred	5,379	5,459
Other regulatory assets, deferred	6,318	6,264
Other deferred charges and assets	1,578	1,468
Total deferred charges and other assets	19,007	19,069
Total Assets	140,120	139,331
Current Liabilities:
Securities due within one year	1,964	2,476
Notes payable	2,445	2,314
Accounts payable	2,154	2,898
Customer deposits	456	503
Accrued taxes —
Accrued income taxes	76	8
Other accrued taxes	503	860
Accrued interest	583	652
Accrued compensation	618	1,151
Asset retirement obligations	749	744
Liabilities from risk management activities, net of collateral	299	294
Operating lease obligations	184	183
Natural gas cost over recovery	150	214
Other regulatory liabilities	169	141
Other current liabilities	1,108	1,029
Total current liabilities	11,458	13,467
Long-term Debt	59,361	57,210
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	11,195	10,990
Deferred credits related to income taxes	4,607	4,674
Accumulated deferred ITCs	2,046	2,067
Employee benefit obligations	1,096	1,115
Operating lease obligations, deferred	1,292	1,307
Asset retirement obligations, deferred	9,657	9,573
Other cost of removal obligations	1,989	1,957
Other regulatory liabilities, deferred	731	715
Other deferred credits and liabilities	1,074	1,031
Total deferred credits and other liabilities	33,687	33,429
Total Liabilities	104,506	104,106
Total Stockholders' Equity	35,614	35,225
Total Liabilities and Stockholders' Equity	$ 140,120	$ 139,331