Consolidated Balance Sheets - SPC - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Current Assets:
Cash and cash equivalents	$ 748	$ 1,917
Receivables —
Customer accounts, net and affiliated	2,030	2,128
Other	519	637
Materials and supplies	1,989	1,664
Other current assets	533	344
Total current assets	10,432	10,416
Property, Plant, and Equipment:
In service	128,428	117,529
Less: Accumulated depreciation	37,725	35,297
Plant in service, net of depreciation	90,703	82,232
Construction work in progress	7,784	10,896
Total property, plant, and equipment	99,844	94,570
Other Property and Investments:
Equity investments in unconsolidated subsidiaries	1,368	1,443
Total other property and investments	9,986	9,757
Deferred Charges and Other Assets:
Operating lease right-of-use assets, net of amortization	1,432	1,531
Other deferred charges and assets	1,468	1,485
Total deferred charges and other assets	19,069	20,148
Total Assets	139,331	134,891
Current Liabilities:
Securities due within one year	2,476	4,285
Notes payable	2,314	2,609
Accounts payable —
Accrued interest	652	614
Operating lease obligations	183	197
Other current liabilities	1,029	787
Total current liabilities	13,467	15,724
Long-Term Debt	57,210	50,656
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	10,990	10,036
Accumulated deferred ITCs	2,067	2,133
Operating lease obligations, deferred	1,307	1,388
Other deferred credits and liabilities	1,031	1,167
Total deferred credits and other liabilities	33,429	33,979
Total Liabilities	104,106	100,359
Common Stockholders' Equity:
Common stock	5,423	5,417
Paid-in capital	13,775	13,673
Retained earnings	12,482	11,538
Accumulated other comprehensive loss	(177)	(167)
Total common stockholders' equity	31,444	30,408
Noncontrolling Interests	3,781	4,124
Total Stockholders' Equity (See accompanying statements)	35,225	34,532
Total Liabilities and Stockholders' Equity	139,331	134,891
Commitments and Contingent Matters
Southern Power
Current Assets:
Cash and cash equivalents	124	131
Receivables —
Customer accounts, net and affiliated	136	226
Other	54	70
Materials and supplies	80	88
Other current assets	92	55
Total current assets	523	621
Property, Plant, and Equipment:
In service	14,690	14,658
Less: Accumulated depreciation	4,119	3,661
Plant in service, net of depreciation	10,571	10,997
Construction work in progress	278	41
Total property, plant, and equipment	10,849	11,038
Other Property and Investments:
Intangible assets, net of amortization of $148 and $129, respectively	243	263
Equity investments in unconsolidated subsidiaries	0	49
Net investment in sales-type leases	148	154
Total other property and investments	391	466
Deferred Charges and Other Assets:
Operating lease right-of-use assets, net of amortization	488	489
Prepaid LTSAs	248	193
Income taxes receivable, non-current	17	19
Other deferred charges and assets	245	255
Total deferred charges and other assets	998	956
Total Assets	12,761	13,081
Current Liabilities:
Securities due within one year	0	290
Notes payable	138	225
Accounts payable —
Affiliated and other	91	67
Accrued taxes	26	24
Accrued interest	27	28
Operating lease obligations	29	28
Other current liabilities	97	83
Total current liabilities	490	884
Long-Term Debt	2,711	2,689
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	614	279
Accumulated deferred ITCs	1,498	1,556
Operating lease obligations, deferred	517	514
Other deferred credits and liabilities	233	243
Total deferred credits and other liabilities	2,862	2,592
Total Liabilities	6,063	6,165
Common Stockholders' Equity:
Common stock	0	0
Paid-in capital	1,088	1,069
Retained earnings	1,846	1,741
Accumulated other comprehensive loss	(17)	(18)
Total common stockholders' equity	2,917	2,792
Noncontrolling Interests	3,781	4,124
Total Stockholders' Equity (See accompanying statements)	6,698	6,916
Total Liabilities and Stockholders' Equity	12,761	13,081
Commitments and Contingent Matters
Southern Power | Related Party
Receivables —
Customer accounts, net and affiliated	37	51
Accounts payable —
Affiliated and other	$ 82	$ 139