Condensed Consolidated Statements of Income (Unaudited) - Southern - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Operating Revenues:
Total operating revenues	$ 7,206	$ 5,198	$ 13,854	$ 11,108
Operating Expenses:
Other operations and maintenance	1,558	1,438	3,075	2,810
Depreciation and amortization	913	891	1,805	1,762
Taxes other than income taxes	349	313	721	657
Estimated loss on Plant Vogtle Units 3 and 4	52	460	52	508
Gain on dispositions, net	(10)	(11)	(33)	(54)
Total operating expenses	5,551	4,490	10,815	8,802
Operating Income	1,655	708	3,039	2,306
Other Income and (Expense):
Allowance for equity funds used during construction	53	45	104	90
Earnings (loss) from equity method investments	34	(40)	80	5
Interest expense, net of amounts capitalized	(488)	(450)	(950)	(901)
Other income (expense), net	139	101	283	160
Total other income and (expense)	(262)	(344)	(483)	(646)
Earnings (Loss) Before Income Taxes	1,393	364	2,556	1,660
Income taxes (benefit)	304	(12)	477	178
Consolidated Net Income	1,089	376	2,079	1,482
Dividends on preferred stock of subsidiaries	4	4	7	7
Net loss attributable to noncontrolling interests	(22)	0	(67)	(33)
Net Income	$ 1,107	$ 372	$ 2,139	$ 1,508
Earnings per share -
Basic (in dollars per share)	$ 1.04	$ 0.35	$ 2.01	$ 1.42
Diluted (in dollars per share)	$ 1.03	$ 0.35	$ 2.00	$ 1.41
Average number of shares of common stock outstanding — (in millions)
Basic (in shares)	1,065	1,061	1,064	1,060
Diluted (in shares)	1,072	1,067	1,070	1,066
Retail electric revenues
Operating Revenues:
Total operating revenues	$ 4,789	$ 3,599	$ 8,402	$ 6,941
Wholesale Electric
Operating Revenues:
Total operating revenues	937	546	1,601	1,091
Other electric revenues
Operating Revenues:
Total operating revenues	192	175	370	346
Natural Gas
Operating Revenues:
Total operating revenues	1,083	677	3,140	2,371
Natural gas
Operating Expenses:
Less Gross Gas Costs	452	231	1,546	814
Alternative revenue programs
Operating Revenues:
Total operating revenues	2	2	1	4
Other revenues
Operating Revenues:
Total operating revenues	205	201	341	359
Operating Expenses:
Less Gross Gas Costs	114	103	183	185
Fuel
Operating Expenses:
Less Gross Gas Costs	1,715	848	2,826	1,696
Purchased power
Operating Expenses:
Less Gross Gas Costs	$ 408	$ 217	$ 640	$ 424