Condensed Consolidated Statements of Income (Unaudited) - Southern (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Total operating revenues	$ 6,980	$ 8,378	$ 19,208	$ 22,232
Alternative revenue programs
Total operating revenues	$ 0	$ (1)	$ 11	$ 0