Condensed Consolidated Statements of Income (Unaudited) - GAS - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Operating Revenues:
Total operating revenues	$ 6,973	$ 6,463	$ 14,748	$ 13,109
Operating Expenses:
Other operations and maintenance	1,685	1,388	3,305	2,860
Depreciation and amortization	1,323	1,182	2,608	2,327
Taxes other than income taxes	403	384	848	780
Total operating expenses	5,209	4,524	10,974	9,467
Operating Income	1,764	1,939	3,774	3,642
Other Income and (Expense):
Earnings from equity method investments	10	31	43	77
Interest expense, net of amounts capitalized	(874)	(694)	(1,588)	(1,358)
Other income (expense), net	162	151	310	302
Total other income and (expense)	(622)	(461)	(1,082)	(870)
Earnings Before Income Taxes	1,142	1,478	2,692	2,772
Income taxes (benefit)	289	290	569	513
Consolidated Net Income Attributable to Southern Company	880	1,203	2,214	2,332
SOUTHERN Co GAS
Operating Revenues:
Total operating revenues	$ 979	$ 831	$ 2,818	$ 2,538
Revenue, Product and Service [Extensible Enumeration]	Natural gas	Natural gas	Natural gas	Natural gas
Operating Expenses:
Cost, Product and Service [Extensible Enumeration]	Natural gas	Natural gas	Natural gas	Natural gas
Total cost of sales	$ 255	$ 149	$ 929	$ 754
Other operations and maintenance	301	288	617	581
Depreciation and amortization	172	158	341	313
Taxes other than income taxes	61	56	158	143
Total operating expenses	789	651	2,045	1,791
Operating Income	190	180	773	747
Other Income and (Expense):
Earnings from equity method investments	23	32	62	76
Interest expense, net of amounts capitalized	(92)	(83)	(183)	(167)
Other income (expense), net	18	15	34	35
Total other income and (expense)	(51)	(36)	(87)	(56)
Earnings Before Income Taxes	139	144	686	691
Income taxes (benefit)	33	36	162	174
Consolidated Net Income Attributable to Southern Company	$ 106	$ 108	$ 524	$ 517