| Segment | Q2 '24 | Q3 '24 | Q4 '24 | Q1 '25 | Q2 '25 | Q3 '25 | Q4 '25 | Q1 '26 |
|---|---|---|---|---|---|---|---|---|
| Ameren Illinois Electric Distribution | — | — | — | $8.00M | $8.00M | $6.00M | — | $6.00M |
| Union Electric Company | $3.00M | $2.00M | $1.00M | $2.00M | $2.00M | $3.00M | $2.00M | $3.00M |
| Ameren Illinois Natural Gas | — | — | — | $0.00 | $0.00 | $0.00 | — | $0.00 |
| Ameren Transmission | — | — | — | $1.00M | $0.00 | $1.00M | — | $0.00 |
| Ameren Illinois Transmission | — | — | — | $1.00M | $0.00 | $1.00M | — | $0.00 |
| Total | — | — | — | — | — | — | — | — |