REVENUE FROM CONTRACTS WITH CUSTOMERS - Disaggregate Revenue Sources (Details) - USD ($)
$ in Millions |
12 Months Ended |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
$ 26,764
|
$ 24,828
|
$ 25,941
|
| Total operating revenues |
26,724
|
25,253
|
29,279
|
| Retail electric revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
18,877
|
16,894
|
15,839
|
| Residential |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
8,276
|
7,309
|
6,604
|
| Commercial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
6,585
|
5,860
|
5,369
|
| Industrial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
3,892
|
3,613
|
3,764
|
| Other |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
124
|
112
|
102
|
| Natural gas distribution revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
3,815
|
4,039
|
5,218
|
| Residential |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
1,753
|
1,981
|
2,843
|
| Commercial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
417
|
505
|
763
|
| Transportation |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
1,295
|
1,184
|
1,186
|
| Industrial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
34
|
45
|
84
|
| Other |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
316
|
324
|
342
|
| Wholesale electric revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
1,926
|
1,981
|
3,120
|
| PPA energy revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
1,059
|
1,107
|
2,274
|
| PPA capacity revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
641
|
624
|
596
|
| Non-PPA revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
226
|
250
|
250
|
| Other natural gas revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
525
|
559
|
687
|
| Gas marketing services |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
507
|
528
|
636
|
| Other |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
18
|
31
|
51
|
| Other revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
1,621
|
1,355
|
1,077
|
| Other revenue sources |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Other |
(40)
|
425
|
3,338
|
| Alabama Power |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
7,623
|
7,233
|
6,921
|
| Total operating revenues |
7,554
|
7,050
|
7,817
|
| Alabama Power | Retail electric revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
6,930
|
6,565
|
5,844
|
| Alabama Power | Residential |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
3,133
|
2,904
|
2,638
|
| Alabama Power | Commercial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
2,042
|
1,928
|
1,685
|
| Alabama Power | Industrial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
1,742
|
1,721
|
1,507
|
| Alabama Power | Other |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
13
|
12
|
14
|
| Alabama Power | Natural gas distribution revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Alabama Power | Residential |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Alabama Power | Commercial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Alabama Power | Transportation |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Alabama Power | Industrial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Alabama Power | Other |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Alabama Power | Wholesale electric revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
453
|
455
|
883
|
| Alabama Power | PPA energy revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
206
|
234
|
489
|
| Alabama Power | PPA capacity revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
108
|
156
|
194
|
| Alabama Power | Non-PPA revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
139
|
65
|
200
|
| Alabama Power | Other natural gas revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Alabama Power | Gas marketing services |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Alabama Power | Other |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Alabama Power | Other revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
240
|
213
|
194
|
| Alabama Power | Other revenue sources |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Other |
(69)
|
(183)
|
896
|
| Georgia Power |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
11,920
|
10,129
|
9,702
|
| Total operating revenues |
11,331
|
10,118
|
11,584
|
| Georgia Power | Retail electric revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
10,964
|
9,378
|
9,049
|
| Georgia Power | Residential |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
4,835
|
4,105
|
3,664
|
| Georgia Power | Commercial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
4,219
|
3,624
|
3,385
|
| Georgia Power | Industrial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
1,808
|
1,558
|
1,921
|
| Georgia Power | Other |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
102
|
91
|
79
|
| Georgia Power | Natural gas distribution revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Georgia Power | Residential |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Georgia Power | Commercial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Georgia Power | Transportation |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Georgia Power | Industrial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Georgia Power | Other |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Georgia Power | Wholesale electric revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
235
|
173
|
207
|
| Georgia Power | PPA energy revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
94
|
87
|
130
|
| Georgia Power | PPA capacity revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
136
|
51
|
47
|
| Georgia Power | Non-PPA revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
5
|
35
|
30
|
| Georgia Power | Other natural gas revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Georgia Power | Gas marketing services |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Georgia Power | Other |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Georgia Power | Other revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
721
|
578
|
446
|
| Georgia Power | Other revenue sources |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Other |
(589)
|
(11)
|
1,882
|
| Mississippi Power |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
1,477
|
1,462
|
1,703
|
| Total operating revenues |
1,463
|
1,474
|
1,694
|
| Mississippi Power | Retail electric revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
983
|
951
|
946
|
| Mississippi Power | Residential |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
308
|
300
|
302
|
| Mississippi Power | Commercial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
324
|
308
|
299
|
| Mississippi Power | Industrial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
342
|
334
|
336
|
| Mississippi Power | Other |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
9
|
9
|
9
|
| Mississippi Power | Natural gas distribution revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Mississippi Power | Residential |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Mississippi Power | Commercial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Mississippi Power | Transportation |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Mississippi Power | Industrial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Mississippi Power | Other |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Mississippi Power | Wholesale electric revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
442
|
472
|
710
|
| Mississippi Power | PPA energy revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
4
|
20
|
16
|
| Mississippi Power | PPA capacity revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
63
|
45
|
4
|
| Mississippi Power | Non-PPA revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
375
|
407
|
690
|
| Mississippi Power | Other natural gas revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Mississippi Power | Gas marketing services |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Mississippi Power | Other |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Mississippi Power | Other revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
52
|
39
|
47
|
| Mississippi Power | Other revenue sources |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Other |
(14)
|
12
|
(9)
|
| Southern Power |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
1,445
|
1,630
|
2,805
|
| Total operating revenues |
2,014
|
2,189
|
3,369
|
| Southern Power | Retail electric revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Power | Residential |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Power | Commercial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Power | Industrial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Power | Other |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Power | Natural gas distribution revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Power | Residential |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Power | Commercial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Power | Transportation |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Power | Industrial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Power | Other |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Power | Wholesale electric revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
1,408
|
1,575
|
2,769
|
| Southern Power | PPA energy revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
778
|
790
|
1,673
|
| Southern Power | PPA capacity revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
400
|
376
|
356
|
| Southern Power | Non-PPA revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
230
|
409
|
740
|
| Southern Power | Other natural gas revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Power | Gas marketing services |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Power | Other |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Power | Other revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
37
|
55
|
36
|
| Southern Power | Other revenue sources |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Other |
569
|
559
|
564
|
| Southern Company Gas |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
4,340
|
4,598
|
5,905
|
| Total operating revenues |
4,456
|
4,702
|
5,962
|
| Southern Company Gas | Retail electric revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Company Gas | Residential |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Company Gas | Commercial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Company Gas | Industrial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Company Gas | Other |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Company Gas | Natural gas distribution revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
3,815
|
4,039
|
5,218
|
| Southern Company Gas | Residential |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
1,753
|
1,981
|
2,843
|
| Southern Company Gas | Commercial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
417
|
505
|
763
|
| Southern Company Gas | Transportation |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
1,295
|
1,184
|
1,186
|
| Southern Company Gas | Industrial |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
34
|
45
|
84
|
| Southern Company Gas | Other |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
316
|
324
|
342
|
| Southern Company Gas | Wholesale electric revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Company Gas | PPA energy revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Company Gas | PPA capacity revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Company Gas | Non-PPA revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Company Gas | Other natural gas revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
525
|
559
|
687
|
| Southern Company Gas | Gas marketing services |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
507
|
528
|
636
|
| Southern Company Gas | Other |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
18
|
31
|
51
|
| Southern Company Gas | Other revenues |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Revenue from contracts with customers |
0
|
0
|
0
|
| Southern Company Gas | Other revenue sources |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Other |
$ 116
|
$ 104
|
$ 57
|