REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables)

12 Months Ended

Dec. 31, 2023

Revenue from Contract with Customer [Abstract]

The following table disaggregates revenue from contracts with customers for the periods presented:


	Southern Company		Alabama Power		Georgia Power		Mississippi Power		Southern Power		Southern Company Gas
	(in millions)
2023
Operating revenues
Retail electric revenues
Residential	$	7,309	$	2,904	$	4,105	$	300	$	—	$	—
Commercial	5,860		1,928		3,624		308		—		—
Industrial	3,613		1,721		1,558		334		—		—
Other	112		12		91		9		—		—
Total retail electric revenues	16,894		6,565		9,378		951		—		—
Natural gas distribution revenues
Residential	1,981		—		—		—		—		1,981
Commercial	505		—		—		—		—		505
Transportation	1,184		—		—		—		—		1,184
Industrial	45		—		—		—		—		45
Other	324		—		—		—		—		324
Total natural gas distribution revenues	4,039		—		—		—		—		4,039
Wholesale electric revenues
PPA energy revenues	1,107		234		87		20		790		—
PPA capacity revenues	624		156		51		45		376		—
Non-PPA revenues	250		65		35		407		409		—
Total wholesale electric revenues	1,981		455		173		472		1,575		—
Other natural gas revenues
Gas marketing services	528		—		—		—		—		528
Other natural gas revenues	31		—		—		—		—		31
Total natural gas revenues	559		—		—		—		—		559
Other revenues	1,355		213		578		39		55		—
Total revenue from contracts with customers	24,828		7,233		10,129		1,462		1,630		4,598
Other revenue sources(a)	425		(183)		(11)		12		559		104
Total operating revenues	$	25,253	$	7,050	$	10,118	$	1,474	$	2,189	$	4,702


	Southern Company		Alabama Power		Georgia Power		Mississippi Power		Southern Power		Southern Company Gas
	(in millions)
2022
Operating revenues
Retail electric revenues
Residential	$	6,604	$	2,638	$	3,664	$	302	$	—	$	—
Commercial	5,369		1,685		3,385		299		—		—
Industrial	3,764		1,507		1,921		336		—		—
Other	102		14		79		9		—		—
Total retail electric revenues	15,839		5,844		9,049		946		—		—
Natural gas distribution revenues
Residential	2,843		—		—		—		—		2,843
Commercial	763		—		—		—		—		763
Transportation	1,186		—		—		—		—		1,186
Industrial	84		—		—		—		—		84
Other	342		—		—		—		—		342
Total natural gas distribution revenues	5,218		—		—		—		—		5,218
Wholesale electric revenues
PPA energy revenues	2,274		489		130		16		1,673		—
PPA capacity revenues	596		194		47		4		356		—
Non-PPA revenues	250		200		30		690		740		—
Total wholesale electric revenues	3,120		883		207		710		2,769		—
Other natural gas revenues

Gas marketing services	636		—		—		—		—		636
Other natural gas revenues	51		—		—		—		—		51
Total other natural gas revenues	687		—		—		—		—		687
Other revenues	1,077		194		446		47		36		—
Total revenue from contracts with customers	25,941		6,921		9,702		1,703		2,805		5,905
Other revenue sources(a)	3,338		896		1,882		(9)		564		57

Total operating revenues	$	29,279	$	7,817	$	11,584	$	1,694	$	3,369	$	5,962


	Southern Company		Alabama Power		Georgia Power		Mississippi Power		Southern Power		Southern Company Gas
	(in millions)
2021
Operating revenues
Retail electric revenues
Residential	$	6,207	$	2,467	$	3,471	$	269	$	—	$	—
Commercial	4,877		1,600		3,010		267		—		—
Industrial	3,067		1,386		1,391		290		—		—
Other	93		17		68		8		—		—
Total retail electric revenues	14,244		5,470		7,940		834		—		—
Natural gas distribution revenues
Residential	1,799		—		—		—		—		1,799
Commercial	470		—		—		—		—		470
Transportation	1,038		—		—		—		—		1,038
Industrial	49		—		—		—		—		49
Other	269		—		—		—		—		269
Total natural gas distribution revenues	3,625		—		—		—		—		3,625
Wholesale electric revenues
PPA energy revenues	1,122		184		95		11		854		—
PPA capacity revenues	493		115		55		5		323		—
Non-PPA revenues	236		170		21		401		398		—
Total wholesale electric revenues	1,851		469		171		417		1,575		—
Other natural gas revenues

Wholesale gas services	2,168		—		—		—		—		2,168
Gas marketing services	464		—		—		—		—		464
Other natural gas revenues	36		—		—		—		—		36
Total other natural gas revenues	2,668		—		—		—		—		2,668
Other revenues	1,075		202		452		31		30		—
Total revenue from contracts with customers	23,463		6,141		8,563		1,282		1,605		6,293
Other revenue sources(a)	3,349		272		697		40		611		1,786
Other adjustments(b)	(3,699)		—		—		—		—		(3,699)
Total operating revenues	$	23,113	$	6,413	$	9,260	$	1,322	$	2,216	$	4,380

(a)Other revenue sources relate to revenues from customers accounted for as derivatives and leases, alternative revenue programs at Southern Company Gas, and cost recovery mechanisms and revenues (including those related to fuel costs) that meet other scope exceptions for revenues from contracts with customers at the traditional electric operating companies.

(b)Other adjustments relate to the cost of Southern Company Gas' energy and risk management activities. Wholesale gas services revenues are presented net of the related costs of those activities on the statement of income. See Notes 15 and 16 under "Southern Company Gas" for information on the sale of Sequent and components of wholesale gas services' operating revenues, respectively.

Contract with customer, asset and liability

The following table reflects the closing balances of receivables, contract assets, and contract liabilities related to revenues from contracts with customers at December 31, 2023 and 2022:


	Southern Company		Alabama Power		Georgia Power		Mississippi Power		Southern Power		Southern Company Gas
	(in millions)
Accounts Receivable
At December 31, 2023	$	2,820	$	821	$	1,011	$	90	$	122	$	684
At December 31, 2022	3,123		696		922		92		237		1,107
Contract Assets
At December 31, 2023	$	271	$	2	$	121	$	—	$	—	$	56
At December 31, 2022	156		2		89		—		—		—
Contract Liabilities
At December 31, 2023	$	116	$	—	$	1	$	—	$	4	$	—
At December 31, 2022	45		4		9		—		1		—

Revenue, remaining performance obligation, expected timing of satisfaction

Revenues from contracts with customers related to these performance obligations remaining at December 31, 2023 are expected to be recognized as follows:


	2024		2025		2026		2027		2028		Thereafter
	(in millions)
Southern Company	$	940	$	552	$	338	$	332	$	323	$	2,045
Alabama Power	23		9		—		—		—		—
Georgia Power	73		41		14		15		15		9
Mississippi Power	60		63		66		69		73		—
Southern Power	379		301		299		306		297		2,041
Southern Company Gas	26		—		—		—		—		—