Condensed Consolidated Balance Sheets (Unaudited) - SPC - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Current Assets:
Cash and cash equivalents	$ 1,676	$ 1,917
Receivables —
Customer accounts, net and Affiliated	2,230	2,128
Other	553	637
Materials and supplies	1,913	1,664
Other current assets	544	344
Total current assets	11,088	10,416
Property, Plant, and Equipment:
In service	125,573	117,529
Less: Accumulated depreciation	37,199	35,297
Plant in service, net of depreciation	88,374	82,232
Construction work in progress	8,496	10,896
Total property, plant, and equipment	98,254	94,570
Other Property and Investments:
Equity investments in unconsolidated subsidiaries	1,376	1,443
Total other property and investments	9,772	9,757
Deferred Charges and Other Assets:
Operating lease right-of-use assets, net of amortization	1,467	1,531
Other deferred charges and assets	1,479	1,485
Total deferred charges and other assets	19,207	20,148
Total Assets	138,321	134,891
Current Liabilities:
Securities due within one year	3,076	4,285
Notes payable	1,726	2,609
Accounts payable —
Accrued interest	573	614
Other current liabilities	943	787
Total current liabilities	13,214	15,724
Long-term Debt	56,003	50,656
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	10,774	10,036
Accumulated deferred ITCs	2,071	2,133
Operating lease obligations	1,320	1,388
Other deferred credits and liabilities	1,166	1,167
Total deferred credits and other liabilities	33,800	33,979
Total Liabilities	103,017	100,359
Total Stockholders' Equity (See accompanying statements)	35,304	34,532
Total Liabilities and Stockholders' Equity	138,321	134,891
SOUTHERN POWER CO
Current Assets:
Cash and cash equivalents	236	131
Receivables —
Other	44	70
Materials and supplies	84	88
Prepaid income taxes	130	5
Other current assets	71	50
Total current assets	789	621
Property, Plant, and Equipment:
In service	14,678	14,658
Less: Accumulated depreciation	4,001	3,661
Plant in service, net of depreciation	10,677	10,997
Construction work in progress	224	41
Total property, plant, and equipment	10,901	11,038
Other Property and Investments:
Intangible assets, net of amortization	248	263
Equity investments in unconsolidated subsidiaries	0	49
Net investment in sales-type leases	150	154
Total other property and investments	398	466
Deferred Charges and Other Assets:
Operating lease right-of-use assets, net of amortization	490	489
Prepaid LTSAs	225	193
Other deferred charges and assets	287	274
Total deferred charges and other assets	1,002	956
Total Assets	13,090	13,081
Current Liabilities:
Securities due within one year	0	290
Notes payable	359	225
Accounts payable —
Accrued taxes	33	24
Accrued interest	22	28
Other current liabilities	117	111
Total current liabilities	654	884
Long-term Debt	2,687	2,689
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	619	279
Accumulated deferred ITCs	1,512	1,556
Operating lease obligations	516	514
Other deferred credits and liabilities	259	243
Total deferred credits and other liabilities	2,906	2,592
Total Liabilities	6,247	6,165
Total Stockholders' Equity (See accompanying statements)	6,843	6,916
Total Liabilities and Stockholders' Equity	13,090	13,081
SOUTHERN POWER CO | Nonrelated Party
Receivables —
Customer accounts, net and Affiliated	164	226
Accounts payable —
Affiliated and Other	43	67
SOUTHERN POWER CO | Related Party
Receivables —
Customer accounts, net and Affiliated	60	51
Accounts payable —
Affiliated and Other	$ 80	$ 139