Consolidated Balance Sheets - Southern - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Current Assets:
Cash and cash equivalents	$ 1,798	$ 1,065
Receivables —
Customer accounts	1,806	1,753
Energy marketing	0	516
Unbilled revenues	711	672
Other accounts and notes	523	512
Accumulated provision for uncollectible accounts	(78)	(118)
Materials and supplies	1,543	1,478
Fossil fuel for generation	450	550
Natural gas for sale	362	460
Prepaid expenses	330	276
Assets from risk management activities, net of collateral	151	147
Regulatory assets – asset retirement obligations	219	214
Natural gas cost under recovery	266	0
Other regulatory assets	653	810
Other current assets	231	282
Total current assets	8,965	8,617
Property, Plant, and Equipment:
In service	115,592	110,516
Less: Accumulated depreciation	34,079	32,397
Plant in service, net of depreciation	81,513	78,119
Nuclear fuel, at amortized cost	824	818
Construction work in progress	8,771	8,697
Total property, plant, and equipment	91,108	87,634
Other Property and Investments:
Goodwill	5,280	5,280
Nuclear decommissioning trusts, at fair value	2,542	2,303
Equity investments in unconsolidated subsidiaries	1,282	1,362
Other intangible assets, net of amortization	445	487
Leveraged leases	0	556
Miscellaneous property and investments	653	398
Total other property and investments	10,202	10,386
Deferred Charges and Other Assets:
Operating lease right-of-use assets, net of amortization	1,701	1,802
Deferred charges related to income taxes	824	796
Prepaid pension costs	1,657	0
Unamortized loss on reacquired debt	258	280
Regulatory assets – asset retirement obligations, deferred	5,466	4,934
Other regulatory assets, deferred	5,577	7,198
Other deferred charges and assets	1,776	1,288
Total deferred charges and other assets	17,259	16,298
Total Assets	127,534	122,935
Current Liabilities:
Securities due within one year	2,157	3,507
Notes payable	1,440	609
Energy marketing trade payables	0	494
Accounts payable	2,169	2,312
Customer deposits	479	487
Accrued taxes —
Accrued income taxes	50	130
Other accrued taxes	641	699
Accrued interest	533	513
Accrued compensation	1,070	1,025
Asset retirement obligations	697	585
Operating lease obligations	250	241
Other regulatory liabilities	563	509
Other current liabilities	872	968
Total current liabilities	10,921	12,079
Long-Term Debt	50,120	45,073
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	8,862	8,175
Deferred credits related to income taxes	5,401	5,767
Accumulated deferred ITCs	2,216	2,235
Employee benefit obligations	1,550	2,213
Operating lease obligations, deferred	1,503	1,611
Asset retirement obligations, deferred	10,990	10,099
Other cost of removal obligations	2,103	2,211
Other regulatory liabilities, deferred	485	251
Other deferred credits and liabilities	816	696
Total deferred credits and other liabilities	33,926	33,258
Total Liabilities	94,967	90,410
Cumulative preferred stock
Redeemable preferred stock	291	291
Common Stockholders' Equity:
Common stock	5,279	5,268
Paid-in capital	11,950	11,834
Treasury, at cost	(47)	(46)
Retained earnings (accumulated deficit)	10,929	11,311
Accumulated other comprehensive loss	(237)	(395)
Total common stockholders' equity	27,874	27,972
Noncontrolling Interests	4,402	4,262
Total Stockholders' Equity (See accompanying statements)	32,276	32,234
Total Liabilities and Stockholders' Equity	127,534	122,935
Commitments and Contingent Matters (See notes)
Redeemable Preferred Stock, $100 par or stated value
Cumulative preferred stock
Redeemable preferred stock	48	48
Redeemable Preferred Stock, $1 par value
Cumulative preferred stock
Redeemable preferred stock	$ 243	$ 243