INCOME TAXES - Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Millions |
Dec. 31, 2024 |
Dec. 31, 2023 |
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
$ 18,908
|
$ 18,574
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
7,593
|
7,886
|
| Valuation allowance |
(333)
|
(206)
|
| Net deferred income tax assets |
7,260
|
7,680
|
| Net deferred income taxes liabilities |
11,648
|
10,894
|
| Accumulated deferred income taxes – assets |
(82)
|
(96)
|
| Accumulated deferred income taxes – liabilities |
11,730
|
10,990
|
| Accelerated depreciation |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
9,828
|
9,683
|
| Property basis differences |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
3,025
|
2,647
|
| Employee benefit obligations |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
1,067
|
979
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
897
|
985
|
| AROs |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
727
|
833
|
| Under recovered fuel and natural gas costs |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
318
|
601
|
| AROs |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
1,886
|
1,902
|
| Employee benefit obligations |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
746
|
797
|
| Remaining book value of retired assets |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
360
|
369
|
| Storm damage reserves |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
216
|
|
| Premium on reacquired debt |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
57
|
63
|
| Other |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
678
|
700
|
| AROs |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
2,613
|
2,735
|
| CAMT Carryforwards |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
40
|
|
| ITC and PTC carryforwards |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
1,380
|
1,387
|
| Estimated loss on plants under construction |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
773
|
857
|
| Estimated loss on regulatory disallowance |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
20
|
26
|
| Other state deferred tax attributes |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
366
|
363
|
| Federal effect of net state deferred tax assets/liabilities |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
402
|
418
|
| Other property basis differences |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
176
|
197
|
| State effect of federal deferred taxes |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
126
|
115
|
| Other partnership basis differences |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
60
|
85
|
| Regulatory liability associated with the Tax Reform Legislation (not subject to normalization) |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
18
|
34
|
| Long-term debt fair value adjustment |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
73
|
79
|
| Other comprehensive losses |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
48
|
67
|
| Other |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
601
|
538
|
| Alabama Power |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
6,109
|
6,101
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
1,931
|
1,931
|
| Valuation allowance |
0
|
0
|
| Net deferred income tax assets |
1,931
|
1,931
|
| Net deferred income taxes liabilities |
4,178
|
4,170
|
| Accumulated deferred income taxes – assets |
0
|
0
|
| Accumulated deferred income taxes – liabilities |
4,178
|
4,170
|
| Alabama Power | Accelerated depreciation |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
2,583
|
2,566
|
| Alabama Power | Property basis differences |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
1,497
|
1,444
|
| Alabama Power | Employee benefit obligations |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
362
|
321
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
196
|
224
|
| Alabama Power | AROs |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
458
|
476
|
| Alabama Power | Under recovered fuel and natural gas costs |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
13
|
80
|
| Alabama Power | AROs |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
658
|
667
|
| Alabama Power | Employee benefit obligations |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
191
|
213
|
| Alabama Power | Remaining book value of retired assets |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
168
|
143
|
| Alabama Power | Storm damage reserves |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
0
|
|
| Alabama Power | Premium on reacquired debt |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
8
|
9
|
| Alabama Power | Other |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
171
|
182
|
| Alabama Power | AROs |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
1,116
|
1,143
|
| Alabama Power | CAMT Carryforwards |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
|
| Alabama Power | ITC and PTC carryforwards |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
48
|
12
|
| Alabama Power | Estimated loss on plants under construction |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Alabama Power | Estimated loss on regulatory disallowance |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Alabama Power | Other state deferred tax attributes |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Alabama Power | Federal effect of net state deferred tax assets/liabilities |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
197
|
215
|
| Alabama Power | Other property basis differences |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Alabama Power | State effect of federal deferred taxes |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
126
|
115
|
| Alabama Power | Other partnership basis differences |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Alabama Power | Regulatory liability associated with the Tax Reform Legislation (not subject to normalization) |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
18
|
30
|
| Alabama Power | Long-term debt fair value adjustment |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Alabama Power | Other comprehensive losses |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
3
|
4
|
| Alabama Power | Other |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
227
|
188
|
| Georgia Power |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
7,792
|
7,661
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
3,564
|
3,718
|
| Valuation allowance |
(157)
|
(75)
|
| Net deferred income tax assets |
3,407
|
3,643
|
| Net deferred income taxes liabilities |
4,385
|
4,018
|
| Accumulated deferred income taxes – assets |
0
|
0
|
| Accumulated deferred income taxes – liabilities |
4,385
|
4,018
|
| Georgia Power | Accelerated depreciation |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
3,810
|
3,628
|
| Georgia Power | Property basis differences |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
918
|
812
|
| Georgia Power | Employee benefit obligations |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
470
|
446
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
279
|
316
|
| Georgia Power | AROs |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
221
|
314
|
| Georgia Power | Under recovered fuel and natural gas costs |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
305
|
508
|
| Georgia Power | AROs |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
1,193
|
1,196
|
| Georgia Power | Employee benefit obligations |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
237
|
260
|
| Georgia Power | Remaining book value of retired assets |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
187
|
221
|
| Georgia Power | Storm damage reserves |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
216
|
|
| Georgia Power | Premium on reacquired debt |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
48
|
53
|
| Georgia Power | Other |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
187
|
223
|
| Georgia Power | AROs |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
1,414
|
1,510
|
| Georgia Power | CAMT Carryforwards |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
18
|
|
| Georgia Power | ITC and PTC carryforwards |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
719
|
691
|
| Georgia Power | Estimated loss on plants under construction |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
773
|
857
|
| Georgia Power | Estimated loss on regulatory disallowance |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Georgia Power | Other state deferred tax attributes |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
26
|
13
|
| Georgia Power | Federal effect of net state deferred tax assets/liabilities |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
100
|
92
|
| Georgia Power | Other property basis differences |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
75
|
83
|
| Georgia Power | State effect of federal deferred taxes |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Georgia Power | Other partnership basis differences |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Georgia Power | Regulatory liability associated with the Tax Reform Legislation (not subject to normalization) |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Georgia Power | Long-term debt fair value adjustment |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Georgia Power | Other comprehensive losses |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
4
|
| Georgia Power | Other |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
160
|
152
|
| Mississippi Power |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
727
|
714
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
358
|
382
|
| Valuation allowance |
(41)
|
(41)
|
| Net deferred income tax assets |
317
|
341
|
| Net deferred income taxes liabilities |
410
|
373
|
| Accumulated deferred income taxes – assets |
(82)
|
(96)
|
| Accumulated deferred income taxes – liabilities |
492
|
469
|
| Mississippi Power | Accelerated depreciation |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
344
|
339
|
| Mississippi Power | Property basis differences |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
192
|
188
|
| Mississippi Power | Employee benefit obligations |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
54
|
49
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
49
|
52
|
| Mississippi Power | AROs |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
0
|
0
|
| Mississippi Power | Under recovered fuel and natural gas costs |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
0
|
13
|
| Mississippi Power | AROs |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
35
|
39
|
| Mississippi Power | Employee benefit obligations |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
35
|
37
|
| Mississippi Power | Remaining book value of retired assets |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
5
|
5
|
| Mississippi Power | Storm damage reserves |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
0
|
|
| Mississippi Power | Premium on reacquired debt |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
1
|
1
|
| Mississippi Power | Other |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
61
|
43
|
| Mississippi Power | AROs |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
35
|
39
|
| Mississippi Power | CAMT Carryforwards |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
|
| Mississippi Power | ITC and PTC carryforwards |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Mississippi Power | Estimated loss on plants under construction |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Mississippi Power | Estimated loss on regulatory disallowance |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Mississippi Power | Other state deferred tax attributes |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
224
|
231
|
| Mississippi Power | Federal effect of net state deferred tax assets/liabilities |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Mississippi Power | Other property basis differences |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Mississippi Power | State effect of federal deferred taxes |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Mississippi Power | Other partnership basis differences |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Mississippi Power | Regulatory liability associated with the Tax Reform Legislation (not subject to normalization) |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
3
|
| Mississippi Power | Long-term debt fair value adjustment |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Mississippi Power | Other comprehensive losses |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Mississippi Power | Other |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
50
|
57
|
| Southern Power |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
1,323
|
1,360
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
638
|
773
|
| Valuation allowance |
(27)
|
(27)
|
| Net deferred income tax assets |
611
|
746
|
| Net deferred income taxes liabilities |
712
|
614
|
| Accumulated deferred income taxes – assets |
0
|
0
|
| Accumulated deferred income taxes – liabilities |
712
|
614
|
| Southern Power | Accelerated depreciation |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
1,309
|
1,346
|
| Southern Power | Property basis differences |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
0
|
0
|
| Southern Power | Employee benefit obligations |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
13
|
12
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
16
|
10
|
| Southern Power | AROs |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
0
|
0
|
| Southern Power | Under recovered fuel and natural gas costs |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
0
|
0
|
| Southern Power | AROs |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
0
|
0
|
| Southern Power | Employee benefit obligations |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
0
|
0
|
| Southern Power | Remaining book value of retired assets |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
0
|
0
|
| Southern Power | Storm damage reserves |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
0
|
|
| Southern Power | Premium on reacquired debt |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
0
|
0
|
| Southern Power | Other |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
1
|
2
|
| Southern Power | AROs |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Southern Power | CAMT Carryforwards |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
|
| Southern Power | ITC and PTC carryforwards |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
384
|
481
|
| Southern Power | Estimated loss on plants under construction |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Southern Power | Estimated loss on regulatory disallowance |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Southern Power | Other state deferred tax attributes |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
49
|
49
|
| Southern Power | Federal effect of net state deferred tax assets/liabilities |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
23
|
27
|
| Southern Power | Other property basis differences |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
85
|
97
|
| Southern Power | State effect of federal deferred taxes |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Southern Power | Other partnership basis differences |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
60
|
85
|
| Southern Power | Regulatory liability associated with the Tax Reform Legislation (not subject to normalization) |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Southern Power | Long-term debt fair value adjustment |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Southern Power | Other comprehensive losses |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
1
|
6
|
| Southern Power | Other |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
20
|
18
|
| Southern Company Gas |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
2,283
|
2,041
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
493
|
377
|
| Valuation allowance |
(6)
|
(7)
|
| Net deferred income tax assets |
487
|
370
|
| Net deferred income taxes liabilities |
1,796
|
1,671
|
| Accumulated deferred income taxes – assets |
0
|
0
|
| Accumulated deferred income taxes – liabilities |
1,796
|
1,671
|
| Southern Company Gas | Accelerated depreciation |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
1,575
|
1,576
|
| Southern Company Gas | Property basis differences |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
412
|
189
|
| Southern Company Gas | Employee benefit obligations |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
60
|
74
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
87
|
89
|
| Southern Company Gas | AROs |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
0
|
0
|
| Southern Company Gas | Under recovered fuel and natural gas costs |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
0
|
0
|
| Southern Company Gas | AROs |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
0
|
0
|
| Southern Company Gas | Employee benefit obligations |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
35
|
11
|
| Southern Company Gas | Remaining book value of retired assets |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
0
|
0
|
| Southern Company Gas | Storm damage reserves |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
0
|
|
| Southern Company Gas | Premium on reacquired debt |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
0
|
0
|
| Southern Company Gas | Other |
|
|
| Deferred tax liabilities — |
|
|
| Deferred income tax liabilities |
201
|
191
|
| Southern Company Gas | AROs |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Southern Company Gas | CAMT Carryforwards |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
104
|
|
| Southern Company Gas | ITC and PTC carryforwards |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Southern Company Gas | Estimated loss on plants under construction |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Southern Company Gas | Estimated loss on regulatory disallowance |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
20
|
26
|
| Southern Company Gas | Other state deferred tax attributes |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
16
|
8
|
| Southern Company Gas | Federal effect of net state deferred tax assets/liabilities |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
107
|
101
|
| Southern Company Gas | Other property basis differences |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Southern Company Gas | State effect of federal deferred taxes |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Southern Company Gas | Other partnership basis differences |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Southern Company Gas | Regulatory liability associated with the Tax Reform Legislation (not subject to normalization) |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Southern Company Gas | Long-term debt fair value adjustment |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
73
|
79
|
| Southern Company Gas | Other comprehensive losses |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
0
|
0
|
| Southern Company Gas | Other |
|
|
| Deferred tax assets — |
|
|
| Deferred income tax assets |
$ 86
|
$ 74
|