Condensed Consolidated Statements of Comprehensive Income (Unaudited) - GAS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Net income	$ 1,356	$ 1,334
Qualifying hedges:
Changes in fair value, net of tax	(3)	14
Reclassification adjustment for amounts included in net income, net of tax	4	(12)
Pension and other postretirement benefit plans:
Consolidated Comprehensive Income Attributable to Company	1,358	1,337
SOUTHERN Co GAS
Net income	447	418
Qualifying hedges:
Changes in fair value, net of tax	6	11
Reclassification adjustment for amounts included in net income, net of tax	(7)	1
Pension and other postretirement benefit plans:
Reclassification adjustment for amounts included in net income, net of tax	(1)	0
Total other comprehensive income (loss)	(2)	12
Consolidated Comprehensive Income Attributable to Company	$ 445	$ 430