v3.25.0.1
INCOME TAXES - Current and Deferred Income Tax Provisions (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Federal —      
Current $ 221 $ 54 $ 10
Deferred 387 299 455
Total federal taxes 608 353 465
State —      
Current 152 41 27
Deferred 209 102 303
Total state taxes 361 143 330
Income taxes 969 496 795
Alabama Power      
Federal —      
Current 357 242 54
Deferred (111) (257) 259
Total federal taxes 246 (15) 313
State —      
Current 103 82 14
Deferred 11 14 96
Total state taxes 114 96 110
Income taxes 360 81 423
Georgia Power      
Federal —      
Current 200 205 38
Deferred 211 195 152
Total federal taxes 411 400 190
State —      
Current 52 37 (21)
Deferred 140 11 201
Total state taxes 192 48 180
Income taxes 603 448 370
Mississippi Power      
Federal —      
Current 32 49 42
Deferred 2 (26) (16)
Total federal taxes 34 23 26
State —      
Current (1) 1 0
Deferred 14 12 11
Total state taxes 13 13 11
Income taxes 47 36 37
Southern Power      
Federal —      
Current (112) (320) (43)
Deferred 106 334 56
Total federal taxes (6) 14 13
State —      
Current 6 (1) 2
Deferred (13) (1) 5
Total state taxes (7) (2) 7
Income taxes (13) 12 20
Southern Company Gas      
Federal —      
Current 84 62 122
Deferred 86 68 (3)
Total federal taxes 170 130 119
State —      
Current 42 24 42
Deferred 46 57 19
Total state taxes 88 81 61
Income taxes $ 258 $ 211 $ 180