| Segment | Q2 '21 | Q3 '21 | Q1 '22 | Q2 '22 | Q3 '22 | Q1 '25 | Q1 '26 |
|---|---|---|---|---|---|---|---|
| Reportable Segment | — | — | — | — | — | — | $628.00M |
| SOUTHERN POWER CO | — | — | — | $98.00M | $95.00M | $87.00M | $4.00M |
| SOUTHERN Co GAS | -$65.00M | $56.00M | — | — | — | — | — |
| Gas distribution operations | $80.00M | $45.00M | $214.00M | — | — | — | — |
| Gas Pipeline Investments | -$36.00M | $10.00M | $29.00M | — | — | — | — |
| Gas marketing services | $6.00M | -$2.00M | $66.00M | — | — | — | — |
| Total | $372.00M | $1.10B | $991.00M | $1.11B | $1.47B | $1.33B | $1.36B |