v3.26.1
Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - GAS - USD ($)
$ in Millions
Total
Paid-In Capital
Retained Earnings
SOUTHERN Co GAS
SOUTHERN Co GAS
Paid-In Capital
SOUTHERN Co GAS
Retained Earnings
SOUTHERN Co GAS
Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2024       $ 10,996 $ 10,863 $ 85 $ 48
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income       418   418  
Return of capital to parent company       (56) (56)    
Capital contributions from parent company       3 3    
Other comprehensive income       12     12
Cash dividends on common stock $ (791)   $ (791) (149)   (149)  
Other (5) $ (1) (2) 1   1  
Ending balance at Mar. 31, 2025       11,225 10,810 355 60
Beginning balance at Dec. 31, 2024       10,996 10,863 85 48
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income 2,214     524      
Other comprehensive income       5      
Ending balance at Jun. 30, 2025       11,198 10,833 312 53
Beginning balance at Mar. 31, 2025       11,225 10,810 355 60
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income 880     106   106  
Capital contributions from parent company       23 23    
Other comprehensive income       (7)     (7)
Cash dividends on common stock (815)   (815) (148)   (148)  
Other 6 6 1 (1)   (1)  
Ending balance at Jun. 30, 2025       11,198 10,833 312 53
Beginning balance at Dec. 31, 2025       11,127 10,854 222 51
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income       447   447  
Capital contributions from parent company       1 1    
Other comprehensive income       (2)     (2)
Cash dividends on common stock (830)   (830) (141)   (141)  
Other (3) (1)   1   1  
Ending balance at Mar. 31, 2026       11,433 10,855 529 49
Beginning balance at Dec. 31, 2025       11,127 10,854 222 51
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income 2,531     573      
Other comprehensive income       (3)      
Ending balance at Jun. 30, 2026       11,441 10,879 514 48
Beginning balance at Mar. 31, 2026       11,433 10,855 529 49
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income 1,174     126   126  
Capital contributions from parent company       24 24    
Other comprehensive income       (1)     (1)
Cash dividends on common stock (858)   (858) (140)   (140)  
Other $ 6 $ 5 $ 2 (1)   (1)  
Ending balance at Jun. 30, 2026       $ 11,441 $ 10,879 $ 514 $ 48